EP2565469B1 - Dispositif pour poser des rivets borgnes avec générateur de pression - Google Patents

Dispositif pour poser des rivets borgnes avec générateur de pression Download PDF

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Publication number
EP2565469B1
EP2565469B1 EP12179809.4A EP12179809A EP2565469B1 EP 2565469 B1 EP2565469 B1 EP 2565469B1 EP 12179809 A EP12179809 A EP 12179809A EP 2565469 B1 EP2565469 B1 EP 2565469B1
Authority
EP
European Patent Office
Prior art keywords
hydraulic
pressure generator
piston
riveting machine
quick coupling
Prior art date
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Revoked
Application number
EP12179809.4A
Other languages
German (de)
French (fr)
Other versions
EP2565469A3 (en
EP2565469A2 (en
Inventor
Klaus Reitzig
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Ws Wielaender and Schill Engineering & Co KG GmbH
Original Assignee
Wsengineering GmbH and Co KG
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Filing date
Publication date
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Application filed by Wsengineering GmbH and Co KG filed Critical Wsengineering GmbH and Co KG
Publication of EP2565469A2 publication Critical patent/EP2565469A2/en
Publication of EP2565469A3 publication Critical patent/EP2565469A3/en
Application granted granted Critical
Publication of EP2565469B1 publication Critical patent/EP2565469B1/en
Revoked legal-status Critical Current
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Classifications

    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F15—FLUID-PRESSURE ACTUATORS; HYDRAULICS OR PNEUMATICS IN GENERAL
    • F15B—SYSTEMS ACTING BY MEANS OF FLUIDS IN GENERAL; FLUID-PRESSURE ACTUATORS, e.g. SERVOMOTORS; DETAILS OF FLUID-PRESSURE SYSTEMS, NOT OTHERWISE PROVIDED FOR
    • F15B11/00—Servomotor systems without provision for follow-up action; Circuits therefor
    • F15B11/06—Servomotor systems without provision for follow-up action; Circuits therefor involving features specific to the use of a compressible medium, e.g. air, steam
    • F15B11/072—Combined pneumatic-hydraulic systems
    • F15B11/0725—Combined pneumatic-hydraulic systems with the driving energy being derived from a pneumatic system, a subsequent hydraulic system displacing or controlling the output element
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B21—MECHANICAL METAL-WORKING WITHOUT ESSENTIALLY REMOVING MATERIAL; PUNCHING METAL
    • B21J—FORGING; HAMMERING; PRESSING METAL; RIVETING; FORGE FURNACES
    • B21J15/00—Riveting
    • B21J15/02—Riveting procedures
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B21—MECHANICAL METAL-WORKING WITHOUT ESSENTIALLY REMOVING MATERIAL; PUNCHING METAL
    • B21J—FORGING; HAMMERING; PRESSING METAL; RIVETING; FORGE FURNACES
    • B21J15/00—Riveting
    • B21J15/02—Riveting procedures
    • B21J15/04—Riveting hollow rivets mechanically
    • B21J15/043—Riveting hollow rivets mechanically by pulling a mandrel
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B21—MECHANICAL METAL-WORKING WITHOUT ESSENTIALLY REMOVING MATERIAL; PUNCHING METAL
    • B21J—FORGING; HAMMERING; PRESSING METAL; RIVETING; FORGE FURNACES
    • B21J15/00—Riveting
    • B21J15/10—Riveting machines
    • B21J15/105—Portable riveters
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B21—MECHANICAL METAL-WORKING WITHOUT ESSENTIALLY REMOVING MATERIAL; PUNCHING METAL
    • B21J—FORGING; HAMMERING; PRESSING METAL; RIVETING; FORGE FURNACES
    • B21J15/00—Riveting
    • B21J15/10—Riveting machines
    • B21J15/16—Drives for riveting machines; Transmission means therefor
    • B21J15/22—Drives for riveting machines; Transmission means therefor operated by both hydraulic or liquid pressure and gas pressure
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B21—MECHANICAL METAL-WORKING WITHOUT ESSENTIALLY REMOVING MATERIAL; PUNCHING METAL
    • B21J—FORGING; HAMMERING; PRESSING METAL; RIVETING; FORGE FURNACES
    • B21J15/00—Riveting
    • B21J15/10—Riveting machines
    • B21J15/36—Rivet sets, i.e. tools for forming heads; Mandrels for expanding parts of hollow rivets
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B25—HAND TOOLS; PORTABLE POWER-DRIVEN TOOLS; MANIPULATORS
    • B25B—TOOLS OR BENCH DEVICES NOT OTHERWISE PROVIDED FOR, FOR FASTENING, CONNECTING, DISENGAGING OR HOLDING
    • B25B27/00—Hand tools, specially adapted for fitting together or separating parts or objects whether or not involving some deformation, not otherwise provided for
    • B25B27/0007—Tools for fixing internally screw-threaded tubular fasteners
    • B25B27/0014—Tools for fixing internally screw-threaded tubular fasteners motor-driven
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B25—HAND TOOLS; PORTABLE POWER-DRIVEN TOOLS; MANIPULATORS
    • B25B—TOOLS OR BENCH DEVICES NOT OTHERWISE PROVIDED FOR, FOR FASTENING, CONNECTING, DISENGAGING OR HOLDING
    • B25B27/00—Hand tools, specially adapted for fitting together or separating parts or objects whether or not involving some deformation, not otherwise provided for
    • B25B27/02—Hand tools, specially adapted for fitting together or separating parts or objects whether or not involving some deformation, not otherwise provided for for connecting objects by press fit or detaching same
    • B25B27/10—Hand tools, specially adapted for fitting together or separating parts or objects whether or not involving some deformation, not otherwise provided for for connecting objects by press fit or detaching same inserting fittings into hoses
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F15—FLUID-PRESSURE ACTUATORS; HYDRAULICS OR PNEUMATICS IN GENERAL
    • F15B—SYSTEMS ACTING BY MEANS OF FLUIDS IN GENERAL; FLUID-PRESSURE ACTUATORS, e.g. SERVOMOTORS; DETAILS OF FLUID-PRESSURE SYSTEMS, NOT OTHERWISE PROVIDED FOR
    • F15B21/00—Common features of fluid actuator systems; Fluid-pressure actuator systems or details thereof, not covered by any other group of this subclass
    • F15B21/12—Fluid oscillators or pulse generators

Definitions

  • the invention relates to a pressure generator for tool applications that have to generate high forces by means of hydraulic active elements, namely riveting tools.
  • the invention relates to a trained as a handheld pressure generator, which can be coupled with riveting tool adapters.
  • Hydraulically operated setting tools are known. These are, for example, riveting tools with a pressing device for riveting conventional rivets. Furthermore, there are riveting tools with a pulling device for setting blind rivets, blind rivet nuts etc ..
  • riveting devices which are connected to a high-pressure hydraulic hose with a stationarily arranged pressure generator.
  • a stationarily arranged pressure generator In such riveting, although the actual riveting tool is much easier to handle.
  • such a device is complex and it is particularly difficult to replace a connected to the stationary pressure generator hydraulic riveting against another.
  • the document US 5,383,262 A shows a dummy device system with a hydraulic drive.
  • the document DE 10 2010 000 545 A1 shows a hydraulic pressing device with a removable head.
  • the document EP 0 117 243 B1 shows a pneumatic / hydraulic riveting tool.
  • the invention relates to a pressure generator with a riveting device. It is a hydraulically operated device by means of which, for example, pulled on a component or can be exerted on a component pressure.
  • the invention relates to a riveting device for blind rivets, is pulled in their processing by means of a pulling device on a pin until it tears off after formation of a rivet.
  • blind rivets can be set with a suitable adapter.
  • the hydraulic pressure generator which is part of the riveting device, but can also be used for other hydraulically operated tools such as spreaders, cartridges for expressing adhesive or sealant, for pliers, in particular for the separation of cables, etc.
  • the pressure generator comprises a pneumatic piston which can be actuated by compressed air.
  • the pneumatic piston is coupled to a hydraulic piston. About the gear ratio between hydraulic piston and pneumatic piston of the achievable pressure in the hydraulic range is determined.
  • the transmission ratio is more than 1:50, in particular, a transmission ratio of 1: 100 is provided.
  • the gear ratio can be up to 1: 150 be.
  • a pressure of 800 bar can be generated in the hydraulic area.
  • the pneumatic piston is movable in an oscillating manner by means of a control device such that a pressure can be generated by oscillating the hydraulic piston in the hydraulic region.
  • the pressure generator thus operates as a hydraulic pump, which allows, despite the small working space of the hydraulic piston due to the high transmission ratio, a sufficient amount of hydraulic fluid can be provided to move traction or pressing devices at a reasonable speed.
  • the hydraulic area comprises a quick coupling with a hydraulic line for a pulling or pressing device.
  • the pressure generator is thus decoupled from the actual pulling or pressing device.
  • This can be connected by means of a quick coupling with the hydraulic area. It is thus possible a particularly simple replacement of the respective tool.
  • the quick coupling also provides a rigid mechanical connection.
  • Pressure generator and pulling or pressing device can be used together as a handheld device.
  • the pressure generator stationary, that is, the pulling or pressing device is connected via a hydraulic line, which has a quick coupling, with a pulling or pressing device.
  • control device comprises a piston control.
  • a pilot control valve is used, which can be actuated via the pneumatic piston, in particular in a closed position is movable.
  • a part of the pilot control valve protrudes into the working space of the pneumatic piston.
  • the piston crown sits on the pilot control valve and closes it. This can build up a pressure in the working space of the pneumatic piston, which pushes the piston forward.
  • the stroke of the pneumatic piston is preferably between 5 and 20 mm. Further, the piston preferably operates at a frequency of 5 and 20 Hz.
  • the hydraulic area has a relief valve. This relief valve is used for the return flow of the hydraulic fluid in a non-actuated state.
  • the relief valve which is preferably aligned as a three / two-way valve, also assume safety-related functions.
  • the relief valve must be closed before each actuation of the pressure generator by means of an actuating device in order to build up pressure.
  • the relief valve is preferably controlled via an actuator of the pressure generator such that it is opened immediately when you release the actuator. When you release the actuator is so sure that immediately the hydraulic area is depressurized.
  • a hydraulic fluid reservoir is disposed in a chamber which extends at least partially around the hydraulic region.
  • a chamber in particular an elastomeric membrane can be used.
  • both the pressure generator and the pulling or pressing device connected to the pressure generator have a self-closing valve.
  • the two components of the tool are so easy to connect with each other and it creates a hydraulic connection between the two components.
  • self-actuating means is attached to the train at the pressure generator - to actuate or pressing device.
  • the pressure generator can be used as a handheld device and forms a unit with the attached pulling or pressing device.
  • a pilot control valve in a working chamber of the pneumatic piston, can be actuated by resetting the pneumatic piston, in particular in a closed position movable.
  • the pilot control valve extends into the working chamber of the pneumatic piston, or it is also conceivable that the pneumatic piston has an extension approximately in the form of a mandrel in order to actuate the pilot control valve arranged in a recess.
  • the riveting device comprising at least one hydraulic area comprises, which is connectable by means of a quick coupling with the pressure generator described above.
  • the hydraulic area comprises a hydraulic piston with which the pulling or pressing tool is actuated.
  • this hydraulic piston has a larger diameter than the hydraulic piston, which builds up the pressure for actuating the tool in the pressure generator.
  • the quick coupling can also provide a multifunctional tool.
  • a tool system with a pressure generator as described above can be provided, which comprises a plurality of different pulling and / or pressing devices, which can be connected to the pressure generator by means of a quick coupling.
  • the pressure generator 1 comprises a housing 5, which in this embodiment is formed in three parts and comprises a head piece, a middle part and an end piece.
  • an actuator 2 is attached, via which the pressure generator is put into operation.
  • the actuating device 2 is arranged under a handle 4.
  • Behind the actuator 2 is a pressure regulator 3, via which the pressure in the pneumatic range and thus also the pressure in the hydraulic range can be adjusted. Via a compressed air connection 6, the pressure generator 1 can be connected to compressed air.
  • a quick coupling 8 which has a self-closing hydraulic valve 9 in the center.
  • a pulling or pressing device (not shown) to the pressure generator 1 are attached.
  • hydraulic fluid can be passed into the pulling or pressing device in this case.
  • a safety actuator 7 is arranged at the front housing part.
  • a device with a two-hand operation can be provided via the safety actuation device 7, such that both the safety actuation device 7 and the safety actuation device 7 Actuator 2 must be operated to generate pressure.
  • the safety actuator 7 must be moved to the active position shown here prior to actuation of the actuator 2. After completion of a riveting operation, the operating device 2 has been released again, the safety operating device 7 folds forward and the next pulling or pressing operation can only be carried out again when the safety operating device 7 is folded back into the position shown here.
  • Fig. 2 shows a sectional view of the in Fig. 1 illustrated pressure generator 1, based on which the function of the pressure generator to be explained in more detail.
  • a compressed air connection 6 of the pneumatic area ie the area in which the device is in compressed air, connected to a compressed air source, such as a compressor.
  • the pressure regulator 3 is designed as a so-called upstream pressure regulator.
  • the valve seat 63 is adjusted via a threaded drive of the pressure regulator 3 in its position.
  • the biased downward by a spring piston 64 is centered by compressed air flows through.
  • the valve seat 63 By adjusting the valve seat 63, the spring force and thus the set working pressure changes.
  • the amount of air is regulated.
  • Compressed air can be passed via the switching valve 66 into the working chamber 14 of the pneumatic piston 13 via the channel 68.
  • pilot control valve 54 which is arranged axially in line with both the pneumatic piston 13 and the hydraulic piston 18, provides reliable, high lift and hence high power control.
  • the system operates as a hydraulic pump, that is, the pneumatic piston 13 and thus the hydraulic piston 18 is moved in an oscillating manner. Consequently, hydraulic fluid can be conveyed continuously and a small working volume of the hydraulic piston 18 is sufficient to be able to provide a sufficient amount of hydraulic fluid.
  • the hydraulic area has a pressure valve 59 and a suction valve 19, via which a fluid delivery only in the direction of the hydraulic valve 9, to which the pulling or pressing device is connected, is possible.
  • the configuration of the pressure valve 59, which opens at each pumping operation in which the piston is moved to the left, and suction valve 19, which flows when resetting the piston hydraulic fluid in the working space of the hydraulic piston is known in the art and requires no further explanation.
  • the hydraulic valve 9 consists of a sleeve 9a and a plug 9b, which closes the valve by means of spring force when the pulling or pressing device is not connected.
  • the hydraulic valve 9 is part of the quick coupling 8, which is connected by means of a seal comprehensive connection piece 57 with the hydraulic portion 20.
  • the quick coupling 8 can be released by turning and is locked in the attached state via the locking lever 23 to ensure that not accidentally under pressure applied to the clutch is released.
  • the housing 47 of the quick coupling 8 is preferably bolted to the housing of the pressure generator or to the front housing part.
  • the pressure generator comprises a relief valve 21. It is in this embodiment, a three-two-way valve.
  • the relief valve 21 is opened in the ground state with applied compressed air via the channel 22.
  • the compressed air flows via the channel 22 into a working space and presses the relief piston 60 down.
  • a safety actuator 7 is still provided, which is arranged as an eccentric above the discharge piston 60.
  • a pressure build-up is possible only in the position of the safety actuator 7 shown here, since when you move the safety actuator of the eccentric holds the relief piston 60 in the open position, thus preventing a closing of the relief valve 21.
  • the safety actuating device 7 may be designed so that it moves automatically, for example by means of a spring in an open position of the relief valve. Before each new actuation of the actuator 2 then the safety actuator 7 must be placed back in the position shown here, in which it remains first, since it is determined due to the spring bias of the relief valve 21. After actuation of the actuator, the safety actuator 7 works back into the non-active position.
  • a two-handed operation be provided, in which it must be operated continuously to build up pressure at all (not shown).
  • Fig. 3 shows a view of the pressure generator 1 with a view from the front of the quick coupling 8.
  • the quick coupling 8 comprises engagement elements which can be moved by means of the guide ring 25 radially inwardly to lock a corresponding coupling element.
  • the slide ring 25 In the locked state, the slide ring 25 can be fixed by means of the locking lever 23 in the locked position. The turning back of the slide ring 25 is therefore only possible again when the locking lever 23 is released.
  • Fig. 4 shows a sectional view taken along the line BB Fig. 1 , Evident are the engagement elements 24 in the form of balls, which can be moved by means of the backdrop of the slide ring 25 while turning the same inside.
  • Fig. 5 shows a first, not according to the invention pressing device 26, which can be connected to a pressure generator described above.
  • the pressing device 26 comprises a quick coupling 27 having a groove in which in connection with FIG. 3 and FIG. 4 can engage described engagement elements.
  • the pressing device 26 comprises a head piece 28 with a rivet receptacle.
  • Fig. 6 shows a sectional view taken along line AA Fig. 5 ,
  • the self-closing hydraulic valve can be seen 29.
  • the pressing device comprises a piston 30, which is reset by means of spring 31. When hydraulic fluid is introduced, the piston pushes forward and initiates the riveting operation via the head piece 28.
  • the pressing device 26 further has on the edge side a groove 32, which for attaching the in Fig. 7 provided in a perspective view bracket 33 is provided.
  • the bracket 33 is fixed by means of a locking pin 34 on the pressing device (26 in FIGS. 5 and 6 ) attached.
  • the bracket has a rivet holder 35, in which the second part of the rivet is inserted to perform a setting operation with the pressing device to which the bracket 33 is attached, in which a two-part conventional rivet is processed.
  • Fig. 8 shows a perspective view of a Blindniet raised 36 according to the invention, which is also fastened by means of the quick coupling 27 to a pressure generator described above.
  • the Blindniet acquired 36 includes a pulling device 37 with a head piece 38, in which the rivet pin of a blind rivet is insertable.
  • the pulling device 37 is attached by means of a pivot bearing 39 to a holder 40, which comprises the quick coupling 27.
  • the pulling device 37 can be pivoted by at least 90 ° to the holder 40 in order to reach hard to reach places.
  • Fig. 9 shows the Blindniet raised 36 with the head piece 38 in a front view. It can be seen that the diameter of the pulling device 37 substantially corresponds to the diameter of the head piece 38, which can generally be unscrewed. Traction device and head are so very compact.
  • Fig. 10 shows a sectional view of the Blindniet raised 36 along the line EE Fig. 9 ,
  • the traction device 37 comprises a piston 42. At the rear end of the traction device is a removable container 43, are collected in the torn Nietriche.
  • the pivot bearing 39 comprises a latching mechanism, via which the pulling device 37 can be locked in defined positions or locked by a pin when it is pivoted about the holder 40.
  • the quick coupling 27 with a self-closing valve for hydraulic fluid.
  • Fig. 11 shows a further sectional view of a pulling device 36.
  • this sectional view clearly visible, the claws of a gripping device 44 for grasping the Nietriches.
  • the quick coupling 27 comprises a self-closing hydraulic valve 29, which in Fig. 12 is shown in detail.
  • the self-closing hydraulic valve is arranged in a housing 47 of the quick coupling and is sealed on the front side via the seal 46.
  • the sleeve 55 When coupling to the quick connector of the pressure generator (8 in Fig. 2 ), the sleeve 55 is pushed to the left, wherein a corresponding sleeve of the quick release of the pressure generator (9a in Fig. 2 ) penetrates into the housing 47 and is sealed by the seal 46.
  • the sleeve 55 is held under tension with the spring 48.
  • a central pin 56 now presses simultaneously the plug of the hydraulic valve of the pressure generator (9b in Fig. 2 ) inwards, so that between the hydraulic valves, a channel is formed through which hydraulic fluid can flow.
  • Fig. 13 shows an improved rivet insert 49, which can be used for example in connection with the previously described pressing device.
  • Rivet insert 49 is intended for known rivet heads on the market.
  • a known per se head piece 51 by means of a clamping sleeve 52, which is pulled on a clamping cone 53, attached.
  • the components are inserted into the housing 50.
  • Fig. 14 shows a sectional view taken along the line BB in Fig. 13 , Evident is in particular the bottom slotted clamping sleeve 52, which is spread apart from the clamping cone 53 below and thus provides a frictional attachment of the head piece 51.
  • Fig. 15 shows a further detailed representation of the principle.
  • the clamping cone 53 which has an approximately claw-shaped profile in the sectional view. Due to the clamping sleeve 52, these claws form and locks against the head piece 51.
  • FIG. 16 a further, alternative embodiment of the invention will be explained, in which the previously described pressure generator is operated stationary. Shown is a handle 80 with a quick coupling 81, which corresponds to the quick coupling of the pressure generator and to which the press and pull tools previously shown can be connected.
  • the handle 80 has an actuating device 32, via which a pulling or pressing operation can be established.
  • a hydraulic line 83 Connected to the handle 80 via a hydraulic line 83. This is preferably by means of a quick coupling (not shown) connected to the pressure generator.
  • the handle comprises the pneumatic control lines 84 and 85, which are preferably also connected to a correspondingly modified pressure generator by means of a quick coupling and on this according to the function of the actuator 2 in Fig. 2 can be controlled.
  • the invention enables very compact riveting and pressing tools, over which a very high tensile force can be exerted.

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  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Physics & Mathematics (AREA)
  • Fluid Mechanics (AREA)
  • General Engineering & Computer Science (AREA)
  • Portable Nailing Machines And Staplers (AREA)
  • Press Drives And Press Lines (AREA)
  • Fluid-Pressure Circuits (AREA)

Description

Gebiet der ErfindungField of the invention

Die Erfindung betrifft einen Druckerzeuger für Werkzeugapplikationen, die mittels hydraulischer Wirkelemente hohe Kräfte erzeugen müssen, nämlich Nietgeräte. Insbesondere betrifft die Erfindung einen als Handgerät ausgebildeten Druckerzeuger, welcher mit Nietwerkzeug-Adaptern gekoppelt werden kann.The invention relates to a pressure generator for tool applications that have to generate high forces by means of hydraulic active elements, namely riveting tools. In particular, the invention relates to a trained as a handheld pressure generator, which can be coupled with riveting tool adapters.

Hintergrund der ErfindungBackground of the invention

Hydraulisch betriebene Setzgeräte sind bekannt. Es handelt sich dabei beispielsweise um Nietgeräte mit einer Pressvorrichtung zum Nieten von konventionellen Nieten. Weiter gibt es Nietgeräte mit einer Zugvorrichtung zum Setzen von Blindnieten, Blindnietmuttern etc..Hydraulically operated setting tools are known. These are, for example, riveting tools with a pressing device for riveting conventional rivets. Furthermore, there are riveting tools with a pulling device for setting blind rivets, blind rivet nuts etc ..

Aus der Praxis sind Druckluft betriebene Handnietgeräte bekannt. Diese weisen üblicherweise einen Pneumatikkolben auf, welcher mit einem Hydraulikkolben gekoppelt ist. Über das Übersetzungsverhältnis von Pneumatikkolben zu Hydraulikkolben kann im Hydraulikbereich ein höherer Druck erzeugt werden als im Pneumatikbereich des Geräts über den Druckluftanschluss angelegt wird. Dennoch ist die Zugkraft bekannter Handnietgeräte limitiert und genügt in vielen Fällen nicht, um auch hochfeste Nieten neuerer Bauart zu verarbeiten. Weiter sind aus der Praxis bekannte betriebene Handnietgeräte in der Regel recht unhandlich, so dass sich schwer zugängliche Stellen, beispielsweise zwischen den Karosserieprofilen eines Fahrzeugs häufig nicht erreichen lassen.From practice compressed air powered Handnietgeräte are known. These usually have a pneumatic piston which is coupled to a hydraulic piston. Via the transmission ratio of pneumatic piston to hydraulic piston, a higher pressure can be generated in the hydraulic area than in the pneumatic area of the device via the compressed air connection. Nevertheless, the traction of known Handnietgeräte is limited and sufficient in many Cases not to process even high-strength rivets newer design. Next known from practice are operated hand riveting usually bulky, so that hard to reach places, for example between the body profiles of a vehicle often can not be achieved.

Weiter aus der Praxis bekannt sind Nietgeräte, welche mit einem Hochdruckhydraulikschlauch mit einem stationär angeordneten Druckerzeuger verbunden sind. Bei derartigen Nietgeräten ist zwar das eigentliche Nietwerkzeug vielfach handlicher. Ein derartiges Gerät ist aber aufwändig und es ist insbesondere nur schwierig möglich, ein mit dem stationären Druckerzeuger verbundenes hydraulisches Nietgerät gegen ein anderes auszutauschen.Further known in practice are riveting devices, which are connected to a high-pressure hydraulic hose with a stationarily arranged pressure generator. In such riveting, although the actual riveting tool is much easier to handle. However, such a device is complex and it is particularly difficult to replace a connected to the stationary pressure generator hydraulic riveting against another.

Das Dokument US 5,383,262 A zeigt ein Blindgerätesystem mit einem Hydraulikantrieb. Das Dokument DE 10 2010 000 545 A1 zeigt eine hydraulische Pressvorrichtung mit einem abnehmbaren Kopf. Das Dokument EP 0 117 243 B1 zeigt ein pneumatisch/hydraulisches Nietwerkzeug.The document US 5,383,262 A shows a dummy device system with a hydraulic drive. The document DE 10 2010 000 545 A1 shows a hydraulic pressing device with a removable head. The document EP 0 117 243 B1 shows a pneumatic / hydraulic riveting tool.

Aufgabe der ErfindungObject of the invention

Es ist insbesondere eine Aufgabe der Erfindung, ein Nietgerät bereit zu stellen, mittels dessen auf einfache weise schwer zugängliche Stellen erreicht werden können.In particular, it is an object of the invention to provide a riveting apparatus by means of which it is possible in a simple manner to reach places which are difficult to access.

Zusammenfassung der ErfindungSummary of the invention

Die Aufgabe der Erfindung wird bereits durch ein Nietgerät nach Anspruch 1 gelöst.The object of the invention is already achieved by a riveter according to claim 1.

Bevorzugte Ausbildungsformen und Weiterbildungen sind den jeweiligen Unteransprüchen zu entnehmen.Preferred embodiments and further developments can be found in the respective subclaims.

Die Erfindung betrifft einen Druckerzeuger mit einem Nietgerät. Es handelt sich dabei um eine hydraulisch betätigbare Vorrichtung, mittels der beispielsweise an einem Bauteil gezogen oder auf ein Bauteil Druck ausgeübt werden kann.The invention relates to a pressure generator with a riveting device. It is a hydraulically operated device by means of which, for example, pulled on a component or can be exerted on a component pressure.

Die Erfindung betrifft eine Nietvorrichtung für Blindniete, bei deren Verarbeitung mittels einer Zugvorrichtung an einem Stift gezogen wird, bis dieser nach Ausbildung eines Niets abreißt. Auch können mit einem geeigneten Adapter Blindniete gesetzt werden.The invention relates to a riveting device for blind rivets, is pulled in their processing by means of a pulling device on a pin until it tears off after formation of a rivet. Also blind rivets can be set with a suitable adapter.

Der hydraulische Druckerzeuger, der Teil des Nietgeräts ist, kann aber auch für andere hydraulisch betätigte Werkzeuge wie Spreizvorrichtungen, Kartuschen zum Ausdrücken von Klebstoff oder Dichtungsmasse, für Zangen, insbesondere zum Trennen von Kabeln etc. verwendet werden.The hydraulic pressure generator, which is part of the riveting device, but can also be used for other hydraulically operated tools such as spreaders, cartridges for expressing adhesive or sealant, for pliers, in particular for the separation of cables, etc.

Der Druckerzeuger umfasst einen Pneumatikkolben, welcher über Druckluft betätigbar ist.The pressure generator comprises a pneumatic piston which can be actuated by compressed air.

Der Pneumatikkolben ist mit einem Hydraulikkolben gekoppelt. Über das Übersetzungsverhältnis zwischen Hydraulikkolben und Pneumatikkolben wird der erzielbare Druck im Hydraulikbereich bestimmt.The pneumatic piston is coupled to a hydraulic piston. About the gear ratio between hydraulic piston and pneumatic piston of the achievable pressure in the hydraulic range is determined.

Vorzugsweise beträgt das Übersetzungsverhältnis mehr als 1:50, insbesondere ist ein Übersetzungsverhältnis von 1:100 vorgesehen. Das Übersetzungsverhältnis kann bis 1:150 betragen. So lässt sich bei einem anliegenden Luftdruck von 8 bar ein Druck von 800 bar im Hydraulikbereich erzeugen.Preferably, the transmission ratio is more than 1:50, in particular, a transmission ratio of 1: 100 is provided. The gear ratio can be up to 1: 150 be. Thus, with an applied air pressure of 8 bar, a pressure of 800 bar can be generated in the hydraulic area.

Der Pneumatikkolben ist mittels einer Steuereinrichtung derart oszillierend bewegbar, dass durch oszillierendes Bewegen des Hydraulikkolbens in dem Hydraulikbereich ein Druck erzeugbar ist. Der Druckerzeuger arbeitet somit als hydraulische Pumpe, was es ermöglicht, dass trotz des aufgrund des hohen Übersetzungsverhältnisses kleinen Arbeitsraum des Hydraulikkolbens auch eine hinreichende Menge an Hydraulikfluid zur Verfügung gestellt werden kann, um Zug- oder Pressvorrichtungen mit angemessener Geschwindigkeit zu bewegen.The pneumatic piston is movable in an oscillating manner by means of a control device such that a pressure can be generated by oscillating the hydraulic piston in the hydraulic region. The pressure generator thus operates as a hydraulic pump, which allows, despite the small working space of the hydraulic piston due to the high transmission ratio, a sufficient amount of hydraulic fluid can be provided to move traction or pressing devices at a reasonable speed.

Weiter umfasst der Hydraulikbereich eine Schnellkupplung mit einer Hydraulikleitung für eine Zug- oder Pressvorrichtung. Der Druckerzeuger ist also von der eigentlichen Zug- oder Pressvorrichtung abgekoppelt. Diese kann mittels einer Schnellkupplung mit dem Hydraulikbereich verbunden werden. Es ist somit ein besonders einfacher Austausch des jeweiligen Werkzeugs möglich. Vorzugsweise wird durch die Schnellkupplung auch eine starre mechanische Verbindung bereitgestellt.Furthermore, the hydraulic area comprises a quick coupling with a hydraulic line for a pulling or pressing device. The pressure generator is thus decoupled from the actual pulling or pressing device. This can be connected by means of a quick coupling with the hydraulic area. It is thus possible a particularly simple replacement of the respective tool. Preferably, the quick coupling also provides a rigid mechanical connection.

Druckerzeuger und Zug- oder Pressvorrichtung können so miteinander verbunden als Handgerät verwendet werden.Pressure generator and pulling or pressing device can be used together as a handheld device.

Bei einer alternativen Ausführungsform der Erfindung ist aber auch denkbar, den Druckerzeuger stationär zu betreiben, das heißt die Zug- oder Pressvorrichtung wird über eine Hydraulikleitung, welche eine Schnellkupplung aufweist, mit einer Zug- oder Pressvorrichtung verbunden.In an alternative embodiment of the invention but it is also conceivable to operate the pressure generator stationary, that is, the pulling or pressing device is connected via a hydraulic line, which has a quick coupling, with a pulling or pressing device.

Bei einer Weiterbildung der Erfindung umfasst die Steuereinrichtung eine Kolbensteuerung.In a further development of the invention, the control device comprises a piston control.

Insbesondere wird ein Pilotsteuerventil verwendet, welches über den Pneumatikkolben betätigbar, insbesondere in eine geschlossene Position bewegbar ist.In particular, a pilot control valve is used, which can be actuated via the pneumatic piston, in particular in a closed position is movable.

Im Unterschied zu bekannten Schlitzsteuerungen oder in den Pneumatikkolben integrierten Umsteuereinrichtungen kann so ein verhältnismäßig großer Hub erzielt werden. Weiter wird gegenüber in den Kolben integrierten Umsteuereinrichtungen das Gewicht des Pneumatikkolbens reduziert und dessen Zuverlässigkeit erhöht.In contrast to known slot controllers or integrated in the pneumatic piston reversing devices so a relatively large stroke can be achieved. Furthermore, the weight of the pneumatic piston is reduced and its reliability is increased compared with reversing devices integrated in the piston.

Vorzugsweise ragt ein Teil des Pilotsteuerventils in den Arbeitsraum des Pneumatikkolbens hinein. Beim Rücksetzen des Kolbens setzt der Kolbenboden auf dem Pilotsteuerventil auf und schließt dieses. Hierdurch kann sich im Arbeitsraum des Pneumatikkolbens ein Druck aufbauen, welcher den Kolben nach vorne schiebt.Preferably, a part of the pilot control valve protrudes into the working space of the pneumatic piston. When the piston is reset, the piston crown sits on the pilot control valve and closes it. This can build up a pressure in the working space of the pneumatic piston, which pushes the piston forward.

Beim Überfahren einer Steuerbohrung strömt Luft aus dem Arbeitsraum zu dem Pilotsteuerventil und öffnet dieses, wodurch die Druckluft im Arbeitsraum des Pneumatikkolbens abgelassen wird und der Kolben, welcher beispielsweise gegen eine Feder arbeitet, zurückgesetzt wird, bis er wiederum das Pilotsteuerventil schließt.When passing over a control bore, air flows from the working space to the pilot control valve and opens it, whereby the compressed air is discharged in the working space of the pneumatic piston and the piston, which for example operates against a spring, is reset until it in turn closes the pilot control valve.

Der Hub des Pneumatikkolbens liegt vorzugsweise zwischen 5 und 20 mm. Weiter arbeitet der Kolben vorzugsweise mit einer Frequenz von 5 und 20 Hz.The stroke of the pneumatic piston is preferably between 5 and 20 mm. Further, the piston preferably operates at a frequency of 5 and 20 Hz.

Bei einer Weiterbildung der Erfindung weist der Hydraulikbereich ein Entlastungsventil auf. Dieses Entlastungsventil dient dem Rückströmen des Hydraulikfluids in einem nicht betätigten Zustand.In a development of the invention, the hydraulic area has a relief valve. This relief valve is used for the return flow of the hydraulic fluid in a non-actuated state.

Weiter kann das Entlastungsventil, welches vorzugsweise als Drei-/Zweiwegeventil ausgerichtet ist, auch sicherheitsrelevante Funktionen übernehmen. So ist denkbar, dass das Entlastungsventil vor jeder Betätigung des Druckerzeugers mittels einer Betätigungseinrichtung geschlossen werden muss, um Druck aufbauen zu können.Further, the relief valve, which is preferably aligned as a three / two-way valve, also assume safety-related functions. Thus, it is conceivable that the relief valve must be closed before each actuation of the pressure generator by means of an actuating device in order to build up pressure.

Es ist auch denkbar, dass nur eine Zweihandbedienung des Werkzeugs möglich ist. Hierzu wird das Entlastungsventil vorzugsweise über eine Betätigungseinrichtung des Druckerzeugers derart angesteuert, dass dieses beim Loslassen der Betätigungseinrichtung sofort geöffnet wird. Beim Loslassen der Betätigungseinrichtung ist so sicher gestellt, dass sofort der Hydraulikbereich drucklos gemacht wird.It is also conceivable that only a two-handed operation of the tool is possible. For this purpose, the relief valve is preferably controlled via an actuator of the pressure generator such that it is opened immediately when you release the actuator. When you release the actuator is so sure that immediately the hydraulic area is depressurized.

Bei einer bevorzugten Ausführungsform der Erfindung ist ein Hydraulikflüssigkeitsvorrat in einer Kammer angeordnet, welche sich zumindest teilweise um den Hydraulikbereich herum erstreckt. Als Kammer kann insbesondere eine Elastomermembran verwendet werden. Diese Ausführungsform der Erfindung ermöglicht die Verwendung des Volumens um den wesentlich kleineren Hydraulikkolben herum zur Speicherung von Hydraulikflüssigkeit und ermöglicht so eine kompaktere Ausgestaltung des Werkzeugs.In a preferred embodiment of the invention, a hydraulic fluid reservoir is disposed in a chamber which extends at least partially around the hydraulic region. As a chamber in particular an elastomeric membrane can be used. This embodiment of the invention allows the use of the volume around the much smaller hydraulic piston around to store hydraulic fluid and thus allows a more compact design of the tool.

Bei einer weiteren bevorzugten Ausführungsform der Erfindung weist die Schnellkupplung ein selbstschließendes Ventil für Hydraulikflüssigkeit auf.In a further preferred embodiment of the invention, the quick coupling on a self-closing valve for hydraulic fluid.

Vorzugsweise weist sowohl der Druckerzeuger als auch die an dem Druckerzeuger angeschlossene Zug- oder Pressvorrichtung ein selbstschließendes Ventil auf. Die beiden Komponenten des Werkzeugs sind so auf einfache Weise miteinander zu verbinden und es wird eine Hydraulikverbindung zwischen den beiden Komponenten geschaffen.Preferably, both the pressure generator and the pulling or pressing device connected to the pressure generator have a self-closing valve. The two components of the tool are so easy to connect with each other and it creates a hydraulic connection between the two components.

Vorzugsweise ist an dem Druckerzeuger selbst eine Betätigungseinrichtung angebracht, um die Zug- oder Pressvorrichtung zu betätigen. Der Druckerzeuger ist so als Handgerät einsetzbar und bildet mit der angebrachten Zug- oder Pressvorrichtung eine Einheit.Preferably self-actuating means is attached to the train at the pressure generator - to actuate or pressing device. The pressure generator can be used as a handheld device and forms a unit with the attached pulling or pressing device.

Gemäß einer Ausführungsform der Erfindung ist in einem Arbeitsraum des Pneumatikkolbens ein Pilotsteuerventil durch das Rücksetzen des Pneumatikkolbens betätigbar, insbesondere in eine geschlossene Position bewegbar.According to one embodiment of the invention, in a working chamber of the pneumatic piston, a pilot control valve can be actuated by resetting the pneumatic piston, in particular in a closed position movable.

Hierzu reicht zumindest ein Teil des Pilotsteuerventils in den Arbeitsraum des Pneumatikkolbens hinein, beziehungsweise es ist auch denkbar, dass der Pneumatikkolben einen Fortsatz etwa in Form eines Dorns aufweist, um das in einer Aussparung angeordnete Pilotsteuerventil zu betätigen.For this purpose, at least a portion of the pilot control valve extends into the working chamber of the pneumatic piston, or it is also conceivable that the pneumatic piston has an extension approximately in the form of a mandrel in order to actuate the pilot control valve arranged in a recess.

Wie bereits vorstehend beschrieben, wird durch diese Art der Umsteuerung eine zuverlässige Umsteuerung mit hohem möglichen Hub bereitgestellt.As already described above, a reliable reversal with a high possible stroke is provided by this type of reversal.

Das Nietgerät, umfasst zumindest einen Hydraulikbereich umfasst, der mittels einer Schnellkupplung mit dem vorstehend beschriebenen Druckerzeuger verbindbar ist.The riveting device, comprising at least one hydraulic area comprises, which is connectable by means of a quick coupling with the pressure generator described above.

Der Hydraulikbereich umfasst einen Hydraulikkolben, mit dem das Zug- oder Presswerkzeug betätigt wird.The hydraulic area comprises a hydraulic piston with which the pulling or pressing tool is actuated.

Zur Erzielung einer hohen Zugkraft hat wiederum dieser Hydraulikkolben einen größeren Durchmesser als der Hydraulikkolben, welcher im Druckerzeuger den Druck zur Betätigung des Werkzeugs aufbaut.To achieve a high tensile force, in turn, this hydraulic piston has a larger diameter than the hydraulic piston, which builds up the pressure for actuating the tool in the pressure generator.

Mittels einer derartigen Zugvorrichtung ist es möglich, Kräfte von mehr als 100 kN zu erzeugen. Durch die Schnellkupplung kann auch ein multifunktionales Werkzeug bereitgestellt werden.By means of such a pulling device, it is possible to generate forces of more than 100 kN. The quick coupling can also provide a multifunctional tool.

Es kann ein Werkzeugsystem mit einem vorstehend beschriebenen Druckerzeuger bereitgestellt werden, welches eine Mehrzahl verschiedener Zug- und/oder Pressvorrichtung umfasst, die mittels einer Schnellkupplung mit dem Druckerzeuger verbindbar sind.A tool system with a pressure generator as described above can be provided, which comprises a plurality of different pulling and / or pressing devices, which can be connected to the pressure generator by means of a quick coupling.

Beschreibung der ZeichnungenDescription of the drawings

Die Erfindung soll im Folgenden Bezug nehmend auf die Zeichnungen Fig. 1 bis Fig. 16 anhand schematisch dargestellter Ausführungsbeispiele näher erläutert werden.

  • Fig. 1 zeigt eine perspektivische Ansicht eines Druckerzeugers 1.
The invention will be described below with reference to the drawings Fig. 1 to Fig. 16 be explained in more detail with reference to schematically illustrated embodiments.
  • Fig. 1 shows a perspective view of a pressure generator. 1

Der Druckerzeuger 1 umfasst ein Gehäuse 5, welches in diesem Ausführungsbeispiel dreiteilig ausgebildet ist und ein Kopfstück, ein Mittelteil und ein Endstück umfasst.The pressure generator 1 comprises a housing 5, which in this embodiment is formed in three parts and comprises a head piece, a middle part and an end piece.

Am Endstück des Gehäuses 5 ist eine Betätigungseinrichtung 2 angebracht, über die der Druckerzeuger in Betrieb gesetzt wird. Die Betätigungseinrichtung 2 ist unter einem Griff 4 angeordnet.At the end of the housing 5, an actuator 2 is attached, via which the pressure generator is put into operation. The actuating device 2 is arranged under a handle 4.

Hinter der Betätigungseinrichtung 2 befindet sich ein Druckregler 3, über den der Druck im Pneumatikbereich und damit auch der Druck im Hydraulikbereich eingestellt werden kann. Über einen Druckluftanschluss 6 kann der Druckerzeuger 1 an Druckluft angeschlossen werden.Behind the actuator 2 is a pressure regulator 3, via which the pressure in the pneumatic range and thus also the pressure in the hydraulic range can be adjusted. Via a compressed air connection 6, the pressure generator 1 can be connected to compressed air.

Vorne am Druckerzeuger 1 befindet sich eine Schnellkupplung 8, welche mittig ein selbstschließendes Hydraulikventil 9 aufweist. Mittels der Schnellkupplung 8 kann eine Zug- oder Pressvorrichtung (nicht dargestellt) an dem Druckerzeuger 1 befestigt werden.At the front of the pressure generator 1 is a quick coupling 8, which has a self-closing hydraulic valve 9 in the center. By means of the quick coupling 8, a pulling or pressing device (not shown) to the pressure generator 1 are attached.

Über das selbstschließende Hydraulikventil 9 kann in diesem Falle Hydraulikflüssigkeit in die Zug- oder Pressvorrichtung geleitet werden.About the self-closing hydraulic valve 9 hydraulic fluid can be passed into the pulling or pressing device in this case.

Am vorderen Gehäuseteil ist eine Sicherheitsbetätigungseinrichtung 7 angeordnet.At the front housing part a safety actuator 7 is arranged.

Je nach Ausführungsvariante kann über die Sicherheitsbetätigungseinrichtung 7 ein Gerät mit einer Zweihandbedienung bereitgestellt werden, derart, dass sowohl die Sicherheitsbetätigungseinrichtung 7 als auch die Betätigungseinrichtung 2 betätigt werden müssen, um Druck zu erzeugen.Depending on the embodiment variant, a device with a two-hand operation can be provided via the safety actuation device 7, such that both the safety actuation device 7 and the safety actuation device 7 Actuator 2 must be operated to generate pressure.

Bei einer alternativen Ausführungsform muss die Sicherheitsbetätigungseinrichtung 7 vor dem Betätigen der Betätigungseinrichtung 2 in die hier dargestellt aktive Position bewegt werden. Nachdem bei Abschluss eines Nietvorgangs die Betätigungseinrichtung 2 wieder losgelassen wurde klappt die Sicherheitsbetätigungseinrichtung 7 nach vorne und der nächste Zug- oder Pressvorgang kann erst wieder durchgeführt werden, wenn die Sicherheitsbetätigungseinrichtung 7 in die hier dargestellte Stellung zurück geklappt wird.In an alternative embodiment, the safety actuator 7 must be moved to the active position shown here prior to actuation of the actuator 2. After completion of a riveting operation, the operating device 2 has been released again, the safety operating device 7 folds forward and the next pulling or pressing operation can only be carried out again when the safety operating device 7 is folded back into the position shown here.

An der Seite befindet sich im Gehäuse 5 noch eine Schraube 10, über der Hydraulikbereich geöffnet und Hydraulikflüssigkeit nachgefüllt werden kann.On the side is still a screw 10 in the housing 5, opened over the hydraulic area and hydraulic fluid can be refilled.

Fig. 2 zeigt eine Schnittansicht des in Fig. 1 dargestellten Druckerzeugers 1, anhand welcher die Funktion des Druckerzeugers näher erläutert werden soll. Fig. 2 shows a sectional view of the in Fig. 1 illustrated pressure generator 1, based on which the function of the pressure generator to be explained in more detail.

Über den Druckluftanschluss 6 wird der Pneumatikbereich, also der Bereich, in dem sich im Gerät Druckluft befindet, an einer Druckluftquelle, wie beispielsweise einem Kompressor, angeschlossen.About the compressed air connection 6 of the pneumatic area, ie the area in which the device is in compressed air, connected to a compressed air source, such as a compressor.

Der Druckregler 3 ist als so genannter Upstream-Druckregler ausgebildet. Der Ventilsitz 63 wird über einen Gewindeantrieb des Druckerreglers 3 in seiner Position eingestellt. Der mittels einer Feder nach unten vorgespannte Kolben 64 wird mittig von Druckluft durchströmt. Durch Einstellen des Ventilsitzes 63 ändert sich die Federkraft und damit der eingestellte Arbeitsdruck. Über das Stromregelventil 61 wird die Luftmenge reguliert.The pressure regulator 3 is designed as a so-called upstream pressure regulator. The valve seat 63 is adjusted via a threaded drive of the pressure regulator 3 in its position. The biased downward by a spring piston 64 is centered by compressed air flows through. By adjusting the valve seat 63, the spring force and thus the set working pressure changes. About the flow control valve 61, the amount of air is regulated.

Die Funktion eines Upstream-Druckreglers ist ansonsten dem Fachmann bekannt und bedarf keiner weiteren Erläuterung.The function of an upstream pressure regulator is otherwise known to the person skilled in the art and requires no further explanation.

Über den Kanal 68 kann Druckluft über das Schaltventil 66 in den Arbeitsraum 14 des Pneumatikkolbens 13 geleitet werden.Compressed air can be passed via the switching valve 66 into the working chamber 14 of the pneumatic piston 13 via the channel 68.

Bei Betätigen, bei dieser Ausführungsform also beim Herabdrücken der Betätigungseinrichtung 2 und des damit mittels des Stiftes 11 gekoppelten Schaltventils 12 strömt über den Kanal 65 Druckluft in den Arbeitsraum 14 des Pneumatikkolbens 13. Der Pneumatikkolben 13 ist mit dem kleineren Hydraulikkolben 18 gekoppelt, beziehungsweise Pneumatikkolben 13 und Hydraulikkolben 18 können ein Bauteil bilden. Durch das Einströmen von Druckluft wird der Pneumatikkolben 13 ausgehend von der hier dargestellten Position zunächst nach links bewegt.Upon actuation, in this embodiment so when depressing the actuator 2 and thus coupled by means of the pin 11 switching valve 12 flows through the channel 65 compressed air into the working chamber 14 of the pneumatic piston 13. The pneumatic piston 13 is coupled to the smaller hydraulic piston 18, or pneumatic piston thirteenth and hydraulic piston 18 may form a component. As a result of the inflow of compressed air, the pneumatic piston 13 is initially moved to the left starting from the position shown here.

Bei Überschreiten der Steuerbohrung 62 strömt Druckluft aus dem Arbeitsraum 14 durch den Kanal 16 zu dem Pilotsteuerventil 54, welches die Steuerung des Pneumatikkolbens 13 übernimmt. Durch die durch den Kanal 16 einströmende Druckluft wird sodann ein Kolben 66 des Pilotsteuerventils 54 nach links bewegt und das Ventil öffnet. Über die Abluftkammer 58 kann nunmehr Druckluft aus dem Arbeitsraum 14 des Pneumatikkolbens 13 über einen Schalldämpfer (nicht dargestellt) ins Freie strömen.When the control bore 62 is exceeded, compressed air flows from the working chamber 14 through the channel 16 to the pilot control valve 54, which takes over the control of the pneumatic piston 13. By the air flowing through the channel 16 compressed air then a piston 66 of the pilot control valve 54 is moved to the left and the valve opens. Compressed air can now flow out of the working space 14 of the pneumatic piston 13 via a silencer (not shown) into the atmosphere via the exhaust air chamber 58.

Da jetzt der Druck im Arbeitsraum 14 sinkt, wird den Pneumatikkolben 13 über die Feder 17 nach rechts bewegt, bis der Kolben 13 auf dem Pilotsteuerventil 54 aufsetzt und dieses wieder schließt. Nunmehr ist der Arbeitsraum 14 wieder geschlossen und durch die über den Kanal 15 einströmende Druckluft kann sich wieder Arbeitsdruck aufbauen.Since now the pressure in the working chamber 14 decreases, the pneumatic piston 13 is moved by the spring 17 to the right until the piston 13 touches on the pilot control valve 54 and this closes again. Now, the working space 14 is closed again and through the incoming air via the channel 15 compressed air can build up working pressure again.

Die Verwendung des Pilotsteuerventils 54, welches axial in einer Reihe sowohl mit dem Pneumatikkolben 13 als auch mit dem Hydraulikkolben 18 angeordnet ist, wird eine zuverlässige Steuerung mit großem Hub und damit großer Leistung bereit gestellt.The use of the pilot control valve 54, which is arranged axially in line with both the pneumatic piston 13 and the hydraulic piston 18, provides reliable, high lift and hence high power control.

Das System arbeitet als hydraulische Pumpe, das heißt, der Pneumatikkolben 13 und damit der Hydraulikkolben 18 wird oszillierend bewegt. Mithin kann kontinuierlich Hydraulikflüssigkeit gefördert werden und ein kleines Arbeitsvolumen des Hydraulikkolbens 18 ist ausreichend, um eine hinreichende Menge and Hydraulikfluid bereitstellen zu können.The system operates as a hydraulic pump, that is, the pneumatic piston 13 and thus the hydraulic piston 18 is moved in an oscillating manner. Consequently, hydraulic fluid can be conveyed continuously and a small working volume of the hydraulic piston 18 is sufficient to be able to provide a sufficient amount of hydraulic fluid.

Um als Pumpe zu arbeiten, weist der Hydraulikbereich ein Druckventil 59 sowie ein Saugventil 19 auf, über die eine Fluidförderung nur in Richtung des Hydraulikventils 9, an dem die Zug- oder Pressvorrichtung angeschlossen wird, möglich ist. Die Ausgestaltung von Druckventil 59, welches bei jedem Pumpvorgang, bei dem der Kolben nach links bewegt wird, öffnet und von Saugventil 19, welches beim Rücksetzen des Kolbens Hydraulikflüssigkeit in den Arbeitsraum des Hydraulikkolbens fließen lässt, ist dem Fachmann bekannt und bedarf keiner näheren Erläuterung.In order to work as a pump, the hydraulic area has a pressure valve 59 and a suction valve 19, via which a fluid delivery only in the direction of the hydraulic valve 9, to which the pulling or pressing device is connected, is possible. The configuration of the pressure valve 59, which opens at each pumping operation in which the piston is moved to the left, and suction valve 19, which flows when resetting the piston hydraulic fluid in the working space of the hydraulic piston is known in the art and requires no further explanation.

Das Hydraulikventil 9 besteht aus einer Hülse 9a und einem Stopfen 9b, welcher bei nicht angeschlossener Zug- oder Pressvorrichtung das Ventil mittels Federkraft verschließt.The hydraulic valve 9 consists of a sleeve 9a and a plug 9b, which closes the valve by means of spring force when the pulling or pressing device is not connected.

Das Hydraulikventil 9 ist Teil der Schnellkupplung 8, welche mittels eines Dichtungen umfassenden Anschlussstücks 57 mit dem Hydraulikbereich 20 verbunden ist.The hydraulic valve 9 is part of the quick coupling 8, which is connected by means of a seal comprehensive connection piece 57 with the hydraulic portion 20.

Die Schnellkupplung 8 kann durch Drehen gelöst werden und wird im befestigten Zustand über den Verriegelungshebel 23 verriegelt, um sicher zu stellen, dass nicht bei anliegendem Druck versehentlich die Kupplung gelöst wird.The quick coupling 8 can be released by turning and is locked in the attached state via the locking lever 23 to ensure that not accidentally under pressure applied to the clutch is released.

Das Gehäuse 47 der Schnellkupplung 8 ist vorzugsweise mit dem Gehäuse des Druckerzeugers beziehungsweise mit dem vorderen Gehäuseteil verschraubt.The housing 47 of the quick coupling 8 is preferably bolted to the housing of the pressure generator or to the front housing part.

Weiter umfasst der Druckerzeuger ein Entlastungsventil 21. Es handelt sich in diesem Ausführungsbeispiel um ein Drei-Zwei-Wegeventil. Das Entlastungsventil 21 wird im Grundzustand bei anliegender Druckluft über den Kanal 22 geöffnet. Hierzu strömt die Druckluft über den Kanal 22 in einen Arbeitsraum ein und drückt den Entlastungskolben 60 herab.Further, the pressure generator comprises a relief valve 21. It is in this embodiment, a three-two-way valve. The relief valve 21 is opened in the ground state with applied compressed air via the channel 22. For this purpose, the compressed air flows via the channel 22 into a working space and presses the relief piston 60 down.

Da nunmehr die Hydraulikflüssigkeit aus dem Hydraulikbereich 20 kontinuierlich zurück fließt, kann sich kein Druck aufbauen.Since now the hydraulic fluid from the hydraulic region 20 flows back continuously, no pressure can build up.

Mit Betätigung der Betätigungseinrichtung 2 wird der Kanal 22 verschlossen und das Entlastungsventil 21 aufgrund Federvorspannung geschlossen. Mithin kann sich Druck im Hydraulikbereich 20 aufbauen.With actuation of the actuator 2, the channel 22 is closed and the relief valve 21 is closed due to spring preload. Consequently, pressure can build up in the hydraulic area 20.

Lässt der Bediener die Betätigungseinrichtung 2 wieder los, strömt Druckluft durch den Kanal 22 und öffnet das Entlastungsventil 21, so dass der Hydraulikbereich unmittelbar nach Loslassen der Betätigungseinrichtung 2 drucklos wird.If the operator releases the actuating device 2 again, compressed air flows through the channel 22 and opens the relief valve 21, so that the hydraulic area immediately after releasing the actuator 2 is depressurized.

In diesem Ausführungsbeispiel ist noch eine Sicherheitsbetätigungseinrichtung 7 vorgesehen, die als Excenter oberhalb des Entlastungskolbens 60 angeordnet ist.In this embodiment, a safety actuator 7 is still provided, which is arranged as an eccentric above the discharge piston 60.

Ein Druckaufbau ist nur in der hier dargestellten Stellung der Sicherheitsbetätigungseinrichtung 7 möglich, da bei Umlegen der Sicherheitsbetätigungseinrichtung der Excenter den Entlastungskolben 60 in der geöffneten Position hält und damit ein Schließen des Entlastungsventils 21 verhindert.A pressure build-up is possible only in the position of the safety actuator 7 shown here, since when you move the safety actuator of the eccentric holds the relief piston 60 in the open position, thus preventing a closing of the relief valve 21.

Die Sicherheitsbetätigungseinrichtung 7 kann so ausgebildet sein, dass diese sich beispielsweise mittels einer Feder automatisch in eine geöffnete Position des Entlastungsventils bewegt. Vor jedem neuen Betätigen der Betätigungseinrichtung 2 muss sodann die Sicherheitsbetätigungseinrichtung 7 in die hier dargestellte Position zurück gestellt werden, in welcher sie zunächst verharrt, da sie aufgrund der Federvorspannung des Entlastungsventils 21 festgelegt wird. Nach Betätigen der Betätigungseinrichtung klappt die Sicherheitsbetätigungseinrichtung 7 zurück in die nicht aktive Position.The safety actuating device 7 may be designed so that it moves automatically, for example by means of a spring in an open position of the relief valve. Before each new actuation of the actuator 2 then the safety actuator 7 must be placed back in the position shown here, in which it remains first, since it is determined due to the spring bias of the relief valve 21. After actuation of the actuator, the safety actuator 7 works back into the non-active position.

Auch kann über die Sicherheitsbetätigungseinrichtung 7 je nach Ausführungsvariante eine Zweihandbedienung bereitgestellt werden, bei welcher diese kontinuierlich betätigt werden muss, um überhaupt Druck aufzubauen (nicht dargestellt).Also, via the safety actuator 7, depending on the variant, a two-handed operation be provided, in which it must be operated continuously to build up pressure at all (not shown).

Fig. 3 zeigt eine Ansicht des Druckerzeugers 1 mit Sicht von vorne auf die Schnellkupplung 8. Die Schnellkupplung 8 umfasst Eingriffelemente, welche mittels des Kulissenrings 25 radial nach innen bewegt werden können, um ein korrespondierendes Kopplungselement zu verriegeln. Im verriegelten Zustand kann der Kulissenring 25 mittels des Verrieglungshebels 23 in der verriegelten Position festgesetzt werden. Das Zurückdrehen des Kulissenrings 25 ist also erst wieder möglich, wenn der Verriegelungshebel 23 gelöst wird. Fig. 3 shows a view of the pressure generator 1 with a view from the front of the quick coupling 8. The quick coupling 8 comprises engagement elements which can be moved by means of the guide ring 25 radially inwardly to lock a corresponding coupling element. In the locked state, the slide ring 25 can be fixed by means of the locking lever 23 in the locked position. The turning back of the slide ring 25 is therefore only possible again when the locking lever 23 is released.

Fig. 4 zeigt eine Schnittansicht entlang der Linie B-B aus Fig. 1. Zu erkennen sind die Eingriffelemente 24 in Form von Kugeln, welche mittels der Kulisse des Kulissenrings 25 beim drehen desselben nach innen bewegt werden können. Fig. 4 shows a sectional view taken along the line BB Fig. 1 , Evident are the engagement elements 24 in the form of balls, which can be moved by means of the backdrop of the slide ring 25 while turning the same inside.

Fig. 5 zeigt eine erste, nicht erfindungsgemäße Pressvorrichtung 26, welche an einem vorstehend beschriebenen Druckerzeuger angeschlossen werden kann. Hierzu umfasst die Pressvorrichtung 26 eine Schnellkupplung 27, die eine Nut aufweist, in welcher die in Zusammenhang mit Fig. 3 und Fig. 4 beschriebenen Eingriffelemente eingreifen können. Fig. 5 shows a first, not according to the invention pressing device 26, which can be connected to a pressure generator described above. For this purpose, the pressing device 26 comprises a quick coupling 27 having a groove in which in connection with FIG. 3 and FIG. 4 can engage described engagement elements.

Stirnseitig umfasst die Pressvorrichtung 26 ein Kopfstück 28 mit einer Nietaufnahme.At the front, the pressing device 26 comprises a head piece 28 with a rivet receptacle.

Fig. 6 zeigt eine Schnittansicht entlang Linie A-A aus Fig. 5. Zu erkennen ist das selbstschließende Hydraulikventil 29. Weiter umfasst die Pressvorrichtung einen Kolben 30, welcher mittels Feder 31 rückgesetzt wird. Beim Einleiten von Hydraulikfluid setzt der Kolben nach vorn und leitet über das Kopfstück 28 den Nietvorgang ein. Fig. 6 shows a sectional view taken along line AA Fig. 5 , The self-closing hydraulic valve can be seen 29. Furthermore, the pressing device comprises a piston 30, which is reset by means of spring 31. When hydraulic fluid is introduced, the piston pushes forward and initiates the riveting operation via the head piece 28.

Die Pressvorrichtung 26 weist des Weiteren randseitig eine Nut 32 auf, welche zum Anbringen des in Fig. 7 in einer perspektivischen Darstellung gezeigten Bügels 33 vorgesehen ist.The pressing device 26 further has on the edge side a groove 32, which for attaching the in Fig. 7 provided in a perspective view bracket 33 is provided.

Der Bügel 33 wird mittels eines verriegelungszapfens 34 an der Pressvorrichtung (26 in Fig. 5 und 6) befestigt. Der Bügel weist einen Niethalter 35 auf, in welchem der zweite Teil des Niets eingelegt wird, um mit der Pressvorrichtung, an der der Bügel 33 angebracht ist, einen Setzvorgang durchzuführen, bei dem ein zweiteiliger herkömmlicher Niet verarbeitet wird.The bracket 33 is fixed by means of a locking pin 34 on the pressing device (26 in FIGS. 5 and 6 ) attached. The bracket has a rivet holder 35, in which the second part of the rivet is inserted to perform a setting operation with the pressing device to which the bracket 33 is attached, in which a two-part conventional rivet is processed.

Fig. 8 zeigt eine perspektivische Ansicht einer erfindungsgemäßen Blindnieteinrichtung 36, welche mittels der Schnellkupplung 27 ebenfalls an einem vorstehend beschriebenen Druckerzeuger befestigbar ist. Fig. 8 shows a perspective view of a Blindnieteinrichtung 36 according to the invention, which is also fastened by means of the quick coupling 27 to a pressure generator described above.

Die Blindnieteinrichtung 36 umfasst eine Zugvorrichtung 37 mit einem Kopfstück 38, in das der Nietstift eines Blindniets einführbar ist.The Blindnieteinrichtung 36 includes a pulling device 37 with a head piece 38, in which the rivet pin of a blind rivet is insertable.

Die Zugvorrichtung 37 ist mittels eines Schwenklagers 39 an einem Halter 40 befestigt, welcher die Schnellkupplung 27 umfasst. So kann die Zugvorrichtung 37 um mindestens 90° um den Halter 40 geschwenkt werden, um schwer zugängliche Stellen erreichen zu können.The pulling device 37 is attached by means of a pivot bearing 39 to a holder 40, which comprises the quick coupling 27. Thus, the pulling device 37 can be pivoted by at least 90 ° to the holder 40 in order to reach hard to reach places.

Fig. 9 zeigt die Blindnieteinrichtung 36 mit dem Kopfstück 38 in einer Ansicht von vorne. Zu erkennen ist, dass der Durchmesser der Zugvorrichtung 37 im Wesentlichen dem Durchmesser des in der Regel abschraubbar ausgebildeten Kopfstücks 38 entspricht. Zugvorrichtung und Kopfstück sind so sehr kompakt ausgebildet. Fig. 9 shows the Blindnieteinrichtung 36 with the head piece 38 in a front view. It can be seen that the diameter of the pulling device 37 substantially corresponds to the diameter of the head piece 38, which can generally be unscrewed. Traction device and head are so very compact.

Fig. 10 zeigt eine Schnittansicht der Blindnieteinrichtung 36 entlang der Linie E-E aus Fig. 9. Fig. 10 shows a sectional view of the Blindnieteinrichtung 36 along the line EE Fig. 9 ,

Die Zugvorrichtung 37 umfasst einen Kolben 42. Am hinteren Ende der Zugvorrichtung befindet sich ein abnehmbarer Behälter 43, in dem abgerissene Nietstifte gesammelt werden. Das Schwenklager 39 umfasst einen Rastmechanismus, über welchen die Zugvorrichtung 37 in definierten Positionen eingerastet beziehungsweise über einen Stift verriegelt werden kann, wenn diese um den Halter 40 geschwenkt wird. Zu erkennen ist ferner die Schnellkupplung 27 mit einem selbstschließenden Ventil für Hydraulikflüssigkeit.The traction device 37 comprises a piston 42. At the rear end of the traction device is a removable container 43, are collected in the torn Nietstifte. The pivot bearing 39 comprises a latching mechanism, via which the pulling device 37 can be locked in defined positions or locked by a pin when it is pivoted about the holder 40. Evident is also the quick coupling 27 with a self-closing valve for hydraulic fluid.

Fig. 11 zeigt eine weitere Schnittansicht einer Zugvorrichtung 36. In dieser Schnittansicht gut zu erkennen sind die Krallen einer Greifeinrichtung 44 zum Fassen des Nietstiftes. Fig. 11 shows a further sectional view of a pulling device 36. In this sectional view clearly visible, the claws of a gripping device 44 for grasping the Nietstiftes.

Weiter zu erkennen ist eine Drehdurchführung 45 im Bereich des Schwenklagers 39. Über die Drehdurchführung wird Hydraulikflüssigkeit der Zugvorrichtung zugeführt.Next to recognize a rotary feedthrough 45 in the region of the pivot bearing 39. About the rotary feedthrough hydraulic fluid is supplied to the pulling device.

Die Schnellkupplung 27 umfasst ein selbstschließendes Hydraulikventil 29, welches in Fig. 12 im Detail dargestellt ist.The quick coupling 27 comprises a self-closing hydraulic valve 29, which in Fig. 12 is shown in detail.

Das selbstschließende Hydraulikventil ist in einem Gehäuse 47 der Schnellkupplung angeordnet und wird stirnseitig über die Dichtung 46 abgedichtet. Beim Ankoppeln an der Schnellkupplung des Druckerzeugers (8 in Fig. 2) wird die Hülse 55 nach links gedrückt, wobei eine korrespondierende Hülse des Schnellverschlusses des Druckerzeugers (9a in Fig. 2) in das Gehäuse 47 eindringt und über die Dichtung 46 abgedichtet wird. Die Hülse 55 wird mit der Feder 48 unter Vorspannung gehalten. Ein mittiger Stift 56 drückt nunmehr gleichzeitig den Stopfen des Hydraulikventils des Druckerzeugers (9b in Fig. 2) nach innen, so dass zwischen den Hydraulikventilen ein Kanal entsteht, durch den Hydraulikflüssigkeit fließen kann.The self-closing hydraulic valve is arranged in a housing 47 of the quick coupling and is sealed on the front side via the seal 46. When coupling to the quick connector of the pressure generator (8 in Fig. 2 ), the sleeve 55 is pushed to the left, wherein a corresponding sleeve of the quick release of the pressure generator (9a in Fig. 2 ) penetrates into the housing 47 and is sealed by the seal 46. The sleeve 55 is held under tension with the spring 48. A central pin 56 now presses simultaneously the plug of the hydraulic valve of the pressure generator (9b in Fig. 2 ) inwards, so that between the hydraulic valves, a channel is formed through which hydraulic fluid can flow.

Fig. 13 zeigt einen verbesserten Nieteinsatz 49, welcher beispielsweise in Verbindung mit der zuvor beschriebenen Presseinrichtung verwendet werden kann. Der Nieteinsatz 49 ist für bekannte, auf dem Markt befindliche Nietköpfe vorgesehen. Hierzu wird ein an sich bekanntes Kopfstück 51 mittels einer Spannhülse 52, welche auf einen Spannkonus 53 gezogen wird, befestigt. Hierzu werden die Bauteile in das Gehäuse 50 eingesetzt. Fig. 13 shows an improved rivet insert 49, which can be used for example in connection with the previously described pressing device. Rivet insert 49 is intended for known rivet heads on the market. For this purpose, a known per se head piece 51 by means of a clamping sleeve 52, which is pulled on a clamping cone 53, attached. For this purpose, the components are inserted into the housing 50.

Fig. 14 zeigt eine Schnittansicht entlang der Linie B-B in Fig. 13. Zu erkennen ist insbesondere die unten geschlitzte Spannhülse 52, welche vom Spannkonus 53 unten aufgespreizt wird und so eine kraftschlüssige Befestigung des Kopfstücks 51 bereitstellt. Fig. 14 shows a sectional view taken along the line BB in Fig. 13 , Evident is in particular the bottom slotted clamping sleeve 52, which is spread apart from the clamping cone 53 below and thus provides a frictional attachment of the head piece 51.

Im Unterschied zu bekannten Aufnahmen für Nietköpfe weist diese Aufnahme keine Gewinde auf, mittels der das Kopfstück befestigt wird. Bei bekannten Aufnahmen mit einem Gewinde kann es dazu kommen, dass sich die Schraubverbindung lockert. Beim Pressen wird sodann das Gewinde zerstört, was bei der hier dargestellten Aufnahme nicht passieren kann.In contrast to known recordings for rivet heads, this recording has no thread by means of which the head piece is attached. In known recordings with a thread It can happen that the screw loosens. When pressing the thread is then destroyed, which can not happen in the recording shown here.

Fig. 15 zeigt eine weitere Detaildarstellung des Prinzips. Zu erkennen ist der Spannkonus 53, welcher in der Schnittansicht ein in etwa klauenförmiges Profil aufweist. Aufgrund der Spannhülse 52 legen sich diese Klauen form- und kraftschlüssig an das Kopfstück 51 an. Fig. 15 shows a further detailed representation of the principle. Evident is the clamping cone 53, which has an approximately claw-shaped profile in the sectional view. Due to the clamping sleeve 52, these claws form and locks against the head piece 51.

Bezug nehmend auf Fig. 16 soll eine weitere, alternative Ausführungsvariante der Erfindung erläutert werden, bei welcher der zuvor dargestellte Druckerzeuger stationär betrieben wird. Dargestellt ist ein Griffstück 80 mit einer Schnellkupplung 81, welche der Schnellkupplung des Druckerzeugers entspricht und an welcher die zuvor dargestellten Press- und Zugwerkzeuge angeschlossen werden können.Referring to Fig. 16 a further, alternative embodiment of the invention will be explained, in which the previously described pressure generator is operated stationary. Shown is a handle 80 with a quick coupling 81, which corresponds to the quick coupling of the pressure generator and to which the press and pull tools previously shown can be connected.

Das Griffstück 80 weist eine Betätigungseinrichtung 32 auf, über die ein Zug- oder Pressvorgang eingerichtet werden kann.The handle 80 has an actuating device 32, via which a pulling or pressing operation can be established.

Angeschlossen ist das Griffstück 80 über eine Hydraulikleitung 83. Diese ist vorzugsweise mittels einer Schnellkupplung (nicht dargestellt) mit dem Druckerzeuger verbunden.Connected to the handle 80 via a hydraulic line 83. This is preferably by means of a quick coupling (not shown) connected to the pressure generator.

Weiter umfasst das Griffstück die Pneumatiksteuerleitungen 84 und 85, welche an einem entsprechend modifizierten Druckerzeuger vorzugsweise ebenfalls mittels einer Schnellkupplung angeschlossen werden und über die dieser entsprechend der Funktion der Betätigungseinrichtung 2 in Fig. 2 gesteuert werden kann.Further, the handle comprises the pneumatic control lines 84 and 85, which are preferably also connected to a correspondingly modified pressure generator by means of a quick coupling and on this according to the function of the actuator 2 in Fig. 2 can be controlled.

Die Verwendung eines derartigen Griffstücks ermöglicht es, dass das Handgerät, mit dem beispielsweise Niete gesetzt werden, noch kompakter ausgebildet sein kann.The use of such a handle makes it possible that the handset with which rivets are set, for example, can be made more compact.

Die Erfindung ermöglicht insbesondere sehr kompakte Niet- und Presswerkzeuge, über die eine sehr hohe Zugkraft ausgeübt werden kann.In particular, the invention enables very compact riveting and pressing tools, over which a very high tensile force can be exerted.

BezugszeichenlisteLIST OF REFERENCE NUMBERS

11
Druckerzeugerpressure generator
22
Betätigungseinrichtungactuator
33
Druckreglerpressure regulator
44
GriffHandle
55
Gehäusecasing
66
DruckluftanschlussCompressed air connection
77
SicherheitsbetätigungseinrichtungSafety actuator
88th
Schnellkupplungquick coupling
99
Hydraulikventilhydraulic valve
9a9a
Hülseshell
9b9b
StopfenPlug
1010
Schraubescrew
1111
Stiftpen
1212
Schaltventilswitching valve
1313
Pneumatikkolbenpneumatic piston
1414
Arbeitsraumworking space
1515
Kanalchannel
1616
Kanalchannel
1717
Federfeather
1818
Hydraulikkolbenhydraulic pistons
1919
Saugventilsuction
2020
Hydraulikbereichhydraulics
2121
Entlastungsventilrelief valve
2222
Kanalchannel
2323
Verriegelungshebellocking lever
2424
Eingriffelementengaging member
2525
Kulissenringsetting ring
2626
Pressvorrichtungpressing device
2727
Schnellkupplungquick coupling
2828
Kopfstückheadpiece
2929
Hydraulikventilhydraulic valve
3030
Kolbenpiston
3131
Federfeather
3232
Nutgroove
3333
Nietbügelrivet clamp
3434
Verriegelungszapfenlocking pin
3535
NiethalterRivet
3636
BlindnieteinrichtungBlindnieteinrichtung
3737
Zugvorrichtunghitch
3838
Kopfstückheadpiece
3939
Schwenklagerpivot bearing
4040
Halterholder
4141
Rastmechanismusdetent mechanism
4242
Kolbenpiston
4343
Behältercontainer
4444
Greifeinrichtunggripper
4545
DrehdurchführungRotary union
4646
Dichtungpoetry
4747
Gehäusecasing
4848
Federfeather
4949
Nieteinsatzrivet insertion
5050
Gehäusecasing
5151
Kopfstückheadpiece
5252
Spannhülseclamping sleeve
5353
Spreizkonusexpansion cone
5454
PilotsteuerventilPilot control valve
5555
Hülseshell
5656
Stiftpen
5757
Anschlussstückconnector
5858
Abluftkammerexhaust chamber
5959
Druckventilpressure valve
6060
Entlastungskolbenrelief piston
6161
StromregelventilFlow control valve
6262
Steuerbohrungcontrol bore
6363
Ventilsitzvalve seat
6464
Kolbenpiston
6565
Kanalchannel
6666
Kolbenpiston
8080
Griffstückgrip
8181
Schnellkupplungquick coupling
8282
Betätigungseinrichtungactuator
8383
Hydraulikanschlusshydraulic connection
8484
PneumatiksteuerleitungPneumatic control line
8585
PneumatiksteuerleitungPneumatic control line

Claims (9)

  1. Riveting machine comprising at least one hydraulic region having a hydraulic piston which is connected to a pressure generator (1) by means of a quick coupling (8, 27), wherein the pressure generator (1) comprises a pneumatic piston (13) which is coupled to a hydraulic piston (18), wherein the pneumatic piston (13) can be moved in an oscillating manner by means of a control device which the pressure generator (1) comprises, so that a pressure can be generated by oscillating movement of the hydraulic piston (18) in a hydraulic region (20) of the pressure generator (1), and wherein the hydraulic region (20) has a quick coupling (8) with a hydraulic line for the riveting machine, wherein the quick coupling (27) of the riveting machine and the quick coupling of the pressure generator (8) each have a self-closing valve for hydraulic fluid,
    and wherein the riveting machine comprises a blind riveting device (36), wherein the blind riveting device (36) comprises a pulling tool (37) with a head piece (38), into which the rivet shaft of a blind rivet can be introduced, characterised in that the pulling tool (37) is fastened to a holder (40) by means of a pivot bearing (39), this holder comprising the quick coupling (27).
  2. Riveting machine as claimed in the preceding claim, characterised in that the control device comprises a piston control.
  3. Riveting machine as claimed in the preceding claim, characterised in that the pressure generator comprises a pilot control valve (54) which can be moved into a closed position by means of the pneumatic piston (13).
  4. Riveting machine as claimed in any one of the preceding claims, characterised in that the hydraulic region (20) of the pressure generator (1) has a relief valve (21).
  5. Riveting machine as claimed in the preceding claim, characterised in that the relief valve (21) can be actuated, in particular via a pneumatic line, by means of the control device and/or by means of an actuating device such that the relief valve (21) opens in a non-actuated position.
  6. Riveting machine as claimed in any one of the two preceding claims, characterised in that the relief valve (21) is connected to a safety actuating device (7) which must be actuated in order to generate pressure in the hydraulic region (20) of the pressure generator (1) by means of an actuating device.
  7. Riveting machine as claimed in any one of the preceding claims, characterised in that a hydraulic fluid reservoir is disposed in a chamber which extends at least partially around the hydraulic piston (18) of the pressure generator (1).
  8. Riveting machine as claimed in any one of the preceding claims, characterised in that the pressure generator (1) has an actuating device (2).
  9. Riveting machine as claimed in any one of the preceding claims, characterised in that the quick coupling (8) of the pressure generator (1) has engagement elements (24) which can be moved radially in the direction of a middle axis by means of a slotted guide.
EP12179809.4A 2011-08-31 2012-08-09 Dispositif pour poser des rivets borgnes avec générateur de pression Revoked EP2565469B1 (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
DE102011111533.5A DE102011111533B4 (en) 2011-08-31 2011-08-31 Pressure generator for a pulling or pressing device and pulling or pressing device

Publications (3)

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EP2565469A2 EP2565469A2 (en) 2013-03-06
EP2565469A3 EP2565469A3 (en) 2015-01-14
EP2565469B1 true EP2565469B1 (en) 2016-03-30

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DE (1) DE102011111533B4 (en)
ES (1) ES2566784T3 (en)

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EP4091771A1 (en) * 2021-05-17 2022-11-23 WS Wieländer + Schill Engineering GmbH & Co. KG Portable pressure intensifier
US11654475B2 (en) 2020-06-03 2023-05-23 Milwaukee Electric Tool Corporation Rivet setting tool

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DE202013104109U1 (en) 2013-09-10 2014-12-11 Mv Marketing + Vertriebs Gmbh & Co. Kg Wieländer & Schill Hydraulic tool and hydraulically actuated tool holder
US11724304B2 (en) * 2015-11-02 2023-08-15 Goran Olsson Handheld handle-powered pull riveter
CN109414754B (en) * 2016-05-02 2020-12-11 艾沛克斯品牌公司 Pneumatic riveter comprising a lever and an unlocking assembly for inhibiting or enabling operation of the lever
DE202017101941U1 (en) 2017-02-13 2017-04-28 Wsengineering Gmbh & Co. Kg Pressure generator and riveting, punching, pressing or drawing tool
DE102017102766B4 (en) * 2017-02-13 2019-06-19 WS Wieländer + Schill Engineering GmbH & Co. KG Pressure generator with two pneumatic pistons
CN106976044B (en) * 2017-03-02 2023-04-25 杭州联伟科技有限公司 Riveting tool accessory and riveting tool
US11673249B2 (en) 2017-12-21 2023-06-13 WS Wieländer + Schill Professionelle Karosserie-Spezialwerkzeuge GmbH & Co. KG Hydraulic tool for a pulling and/or pressing device
DE102018126940A1 (en) 2018-10-29 2020-04-30 WS Wieländer + Schill Professionelle Karosserie-Spezialwerkzeuge GmbH & Co. KG System with a pneumatically operated hydraulic tool, shut-off valve and trolley for a pneumatically operated hydraulic tool
GB2584142B (en) * 2019-05-23 2023-07-26 Avdel Uk Ltd Fastener placement tool
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DE202023103546U1 (en) 2023-06-27 2023-07-18 WS Wieländer + Schill Professionelle Karosserie-Spezialwerkzeuge GmbH & Co. KG punching or riveting tool

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Also Published As

Publication number Publication date
ES2566784T3 (en) 2016-04-15
DE102011111533A1 (en) 2013-02-28
EP2565469A3 (en) 2015-01-14
EP2565469A2 (en) 2013-03-06
DE102011111533B4 (en) 2020-06-25

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