TWI627647B - Fixture and method and device for using the same - Google Patents

Abstract

The invention provides a jig, and a method and device for using the jig. The jig includes: a plurality of movable blocks, which are oppositely arranged at one end of a gripper cylinder, and are driven and controlled by the gripper cylinder. The positions are close to or far from each other; a plurality of clamping blocks are respectively arranged on the plurality of movable blocks respectively, and the plurality of clamping blocks are respectively linked by the plurality of movable blocks; an elastic element is surrounded and set on The outer periphery of the plurality of movable blocks provides a force for the plurality of movable blocks to approach each other in relative positions; when the fixture is used for the entirety of a workpiece, the workpiece can be attracted to a side by a negative pressure suction nozzle on a turret And the fixture is set on a moving base to be driven close to the workpiece, and when the side of the workpiece is clamped by the clamping block of the fixture, the elastic element provides the force to clamp the workpiece.

Description

Fixture and method and device for using the same

The present invention relates to a jig and a method and a device for using the jig, and more particularly, to a jig for adjusting the positioning of a workpiece, and a method and a device for using the jig, which are used in the inductance coil coating operation.

In the conventional coating and encapsulation operation of the inductor coil, the whole material program is usually performed by a single material workstation in a rotary conveying mechanism. The single material workstation is provided with a single material fixture, which is preset according to the shape of the workpiece. A plurality of clamping jaws. If the workpiece is rectangular, there are four pairs of opposing jaws to clamp the four sides of the rectangular workpiece. The clamping jaws can be closed or opened by using a motor cam, an air cylinder, etc. as a power source. To clamp or release the workpiece; the rotary conveying mechanism is provided with a plurality of negative pressure suction nozzles to adsorb the workpiece, and the workpiece is conveyed in different workstations around the rotary conveying mechanism for different preset operations; the workpiece is entered by a feeding station When the rotary conveying mechanism is transported to the monolithic work station, the monolithic fixture adjusts the position corresponding to the workpiece adsorbed by the negative pressure suction nozzle, so that the workpiece on the negative pressure nozzle is accurately aligned and enters other subsequent workstations for gluing. , Unloading ... and so on.

In the prior art monolithic fixture, if the motor cam is used as the power source for the opening and closing of the gripper, the design of the mechanism is more complicated and it is difficult to adjust the force of the gripper when it is closed. If the adjustment is too loose, the workpiece cannot be accurately held. If the adjustment is too tight, it is easy to pinch the workpiece; if the cylinder is used as the power source for opening and closing the jaw, the jaw will not stay fixed at the preset position due to gas pressure when clamping the workpiece, and the jaw will shake. That happened.

That is, an object of the present invention is to provide a jig that can securely clamp a workpiece without damaging the workpiece.

Another object of the present invention is to provide a monolithic method using the jig provided by the object of the present invention.

Another object of the present invention is to provide a monolithic device using the monolithic method provided by another object of the present invention.

The clamp according to the purpose of the present invention includes: a plurality of movable blocks, which are oppositely arranged at one end of a gripper cylinder, and are driven and controlled by the gripper cylinder, and are close to or away from each other at relative positions; a plurality of gripper blocks , Each correspondingly provided on each of the plurality of movable blocks, the plurality of clamping blocks are respectively linked by the plurality of movable blocks to clamp or release a workpiece; an elastic element is surrounded and nested on the plurality of movable blocks; The outer periphery of the movable block provides a force for the plurality of movable blocks to approach each other at relative positions.

According to another object of the present invention, a monolithic method uses a jig as described above, wherein the jig uses the other end of the jaw cylinder to be set on a mounting surface erected on a moving seat.

According to another object of the present invention, another monolithic method uses the jig as described, comprising: positioning a side of a workpiece on a turret, causing the jig to be moved near the workpiece by a moving seat, and using the jig The clamping block clamps the workpiece.

A monolithic device according to another object of the present invention includes a device using the monolithic method as described.

According to the fixture of the embodiment of the present invention and the method and device for using the same, the elastic element surrounding the outer periphery of the four movable blocks is used, and the contraction force of the elastic element constituted by the stretched coil spring is used to surround the elastic element. When the movable block is driven by the gripper cylinder and approaches each other in relative positions, it can quickly reach the preset position, and is restrained by the contraction force of the elastic element to be positioned at the preset position, so that each clamping block that is linked by each movable block Can synchronize and surely clamp the workpiece, quickly guide the workpiece The positioning and orientation during suction of the negative pressure suction nozzle, and because the elastic element has elasticity, the clamping force of the elastic element can be surely clamped without damaging the workpiece.

A‧‧‧machine table top

B‧‧‧Glue coating device

B1‧‧‧Turret

B11‧‧‧side

B12‧‧‧Negative pressure nozzle

B2‧‧‧feeding station

B21‧‧‧Vibration feeding device

B22‧‧‧Transport fixture

B3‧‧‧Solid Material Workstation

B31‧‧‧Fixture

B311‧‧‧Activity block

B312‧‧‧Clamp Cylinder

B313‧‧‧Clamping block

B3131‧‧‧Fixed section

B3132‧‧‧Clamping section

B3133‧‧‧Clamping surface

B314‧‧‧Elastic element

B315‧‧‧Limit pieces

B3151‧‧‧ limit slot

B316‧‧‧link pin

B317‧‧‧Clamping area

B32‧‧‧mobile seat

B33‧‧‧Driver

B34‧‧‧Mounting surface

B4‧‧‧Gluing station

B41‧‧‧ rubber valve device

B5‧‧‧Removal Workstation

B51‧‧‧Removal fixture

C‧‧‧ drying device

W‧‧‧ Workpiece

W1‧‧‧ flange

W2‧‧‧ core core

W3‧‧‧ side

W4‧‧‧ side

FIG. 1 is a schematic diagram of a device configuration in an embodiment of the present invention.

FIG. 2 is a schematic diagram of a negative pressure suction nozzle and a workpiece in the embodiment of the present invention.

FIG. 3 is a schematic perspective view of a workpiece in the embodiment of the present invention.

FIG. 4 is a schematic perspective view of a monolithic workstation in an embodiment of the present invention.

FIG. 5 is an exploded perspective view of a jig in the embodiment of the present invention.

FIG. 6 is a schematic diagram of a release state of a clamp according to an embodiment of the present invention.

FIG. 7 is a schematic diagram of a clamping state of a clamp according to an embodiment of the present invention.

FIG. 8 is a schematic diagram of a negative pressure suction nozzle sucking a workpiece into a clamping area in the embodiment of the present invention.

Please refer to FIG. 1. The fixture of the embodiment of the present invention and the method and device for using the fixture can be illustrated as the device shown in the figure. The device is mainly used to perform the encapsulation process of the inductor coil, including The gluing process performed by the gluing device B on the machine table A, and the workpieces that have completed the gluing process are dried by a drying device C.

Please refer to Figs. 1 and 2. The gluing device B includes: a turret B1, which is a square with four sides B11, for performing four intermittent conversion procedures, and each side B11 is provided with four negative pressures. Nozzle B12; A feeding station B2 is provided with a vibrating feeding device B21 and a conveying jig B22, and the workpiece W to be glued is fed into the side of the turret B1 by the vibrating feeding device B21 through the conveying jig B22 four times at a time. Side B11, so that four workpieces W are respectively adsorbed by four negative pressure suction nozzles B12 on the same side B11; A monolithic work station B3 is provided with four fixtures B31, which are equidistantly arranged in a Y-axis direction on a moving base B32. The moving base B32 can be driven by a driver B33 and simultaneously drive the four fixtures B31 on the X axis. Reciprocate in the direction; the four clamps B31 adjust the workpieces W absorbed by the four negative pressure suction nozzles B12 here, so that each workpiece W is accurately positioned on the negative pressure suction nozzle B12; a glue coating station B4, A rubber valve device B41 is provided for coating the adhesive on the workpiece W; a removing station B5 is provided with a removing fixture B51 for rotating the side B11 of the rotating tower B1 of the completed adhesive coating workpiece W The negative pressure suction nozzle B12 is detached and transferred to the drying device C for a drying process.

Referring to FIG. 3, a workpiece W according to an embodiment of the present invention is an inductor coil made by winding an iron core. The workpiece W is provided with two flange portions W1, and a completed wound wire is formed between the two. The core portion W2 to be coated with the adhesive is provided with a side surface W3 and four side edges W4 on the outside of the flange portion W1.

Please refer to Figs. 4, 5, and 6. The four fixtures B31 of the monolithic work station B3 are equidistantly arranged on the mounting surface B34 of one of the moving seats B32 in the Y-axis direction. Each fixture B31 is provided with: Four movable blocks B311 are arranged opposite to one end of a gripper cylinder B312, and are driven and controlled by a gripper cylinder B312, and approach or move away from each other in relative positions; the other end of the gripper cylinder B312 is provided on a moving seat. The mounting surface B34 of B32; the four clamping blocks B313 are respectively arranged on the four movable blocks B311, and the four clamping blocks B313 are respectively but synchronously linked by the four movable blocks B311 to clamp the workpiece W or Release; each clamping block B313 is provided with a fixed portion B3131 and a clamping portion B3132, the thickness of the fixed portion B3131 is larger than the clamping portion B3132 to form a gap between the two; the fixed portion B3131 is connected to the movable block B311 and clamped The part B3132 contacts the workpiece W with a clamping surface B3133; An elastic element B314 surrounds and is sleeved on the outer periphery of the four movable blocks B311 to provide a force for the four movable blocks B311 to approach each other at relative positions. The surrounding elastic element B314 may be composed of a coil spring for stretching.

When used in the monolithic operation in the monolithic work station B3 in the gumming process performed by the gumming device B shown in FIGS. 1 and 2, a stopper B315 shown in FIG. 5 is also provided. Two connecting pins B316 parallel to each other and provided on the mounting surface B34 make the stopper B315 be mounted on the mounting surface B34. One end of the connecting pin B316 is connected to the mounting surface B34 and the other end is connected to the stopper B315. The gripper cylinder B312 of B31 is limited to be located between the stopper B315 and the mounting surface B33. The stopper B315 is provided with four limit grooves B3151 corresponding to the clamping block B313 radially from the outer periphery inward, and each clamping block The fixed part B3131 of B313 can be moved and displaced in the limiting groove B3151, and the clamping part B3132 of each clamping block B313 is moved and displaced on the outward side of the limiting piece B315, so that the four clamping surfaces B3133 are surrounded by one A rectangular clamping area B317.

In the method of the whole material according to the embodiment of the present invention, four workpieces W are received by the four negative pressure suction nozzles B12 on the side B11 of the turret B1 with the X-axis suction force, respectively, and the side surfaces W3 are absorbed by the workpieces W. When the tower B1 is transported to the monolithic work station B3, the driver B33 drives the moving seat B32 to move in the X axis, so that the four clamps B31 on the mounting surface B34 approach the workpiece W at the same time in the X axis with the suction force of the negative pressure nozzle B12. Until the workpiece W enters the clamping area B317 of the release state of the clamp B31; please refer to Figs. 7 and 8. At this time, the clamping block B313 of each clamp B31 is driven by the clamping jaw cylinder B312 to move the clamping surface B3133 synchronously against each other. Each side W4 contacting the workpiece W starts to clamp the workpiece W. At this time, the elastic element B314 sleeved on the outer periphery of the movable block B311 then provides the clamping block B313 to clamp the workpiece W; the workpiece W is clamped by the side W3. Negative pressure suction nozzle B22 sucks, so the workpiece W will still slightly shift due to the conveyance of the turret B1. The workpiece W is clamped by touching the four sides W4 of the workpiece W with the four clamping surfaces B3133 in a fixed direction. , The original offset workpiece W can be used to guide the positioning and orientation of the negative pressure suction nozzle B12.

The clamp of the embodiment of the present invention, and the method and device for using the same to clamp the elastic element B314 sleeved around the outer periphery of the four movable blocks B311, and the elastic element B314 constituted by the stretched coil spring are contracted when being surrounded. The force enables the movable block B311 to quickly reach the preset position when driven by the gripper cylinder B312 and close to each other in the relative position, and is restrained by the contraction force of the elastic element B314 to be positioned at the preset position, so that the movable block B311 is affected by each movable block. The clamping blocks B313 linked by B311 can simultaneously and surely clamp the workpiece W, and quickly guide the positioning and orientation of the workpiece W when the negative pressure suction nozzle B12 is adsorbed, and because the elastic element B314 has elasticity, the clamping force of the elastic element B314 The workpiece W can be clamped without damage.

However, the above are only the preferred embodiments of the present invention. When the scope of implementation of the present invention cannot be limited by this, that is, the simple equivalent changes and modifications made according to the scope of the patent application and the description of the invention, All are still within the scope of the invention patent.

Claims (9)

A clamp includes: a plurality of movable blocks, which are oppositely disposed at one end of a gripper cylinder, and are driven and controlled by the gripper cylinder, and are close to or away from each other at relative positions; a plurality of gripper blocks, each corresponding to each other It is provided on each of the plurality of movable blocks, and the plurality of clamping blocks are respectively linked by the plurality of movable blocks to clamp or release a workpiece; an elastic element surrounds and is sleeved on the outer periphery of the plurality of movable blocks. To provide the forces of the plurality of movable blocks approaching each other in relative positions. The clamp according to item 1 of the scope of patent application, wherein the elastic element is composed of a tensioned coil spring. According to the fixture described in item 1 of the patent application scope, the clamping block is provided with a fixing portion and a clamping portion, and the thickness of the fixing portion is greater than the clamping portion so that a difference is formed between the two. A monolithic method uses a jig as described in item 1 or 2 of the scope of patent application, wherein the jig uses the other end of the jaw cylinder to be set on a mounting surface erected on a moving seat. The monolithic method as described in item 4 of the scope of patent application, wherein a mounting pin is provided on the mounting surface, one end of which is connected to the mounting surface, and the other end is connected to a stopper, and the stopper is from the outer periphery to the inner diameter. A negative number of limiting grooves corresponding to the clamping block are provided in the opening direction, and the clamping jaw cylinder is located between the limiting member and the mounting surface. According to the monolithic method described in item 5 of the patent application scope, wherein the clamping block is provided with a fixing portion and a clamping portion, and the thickness of the fixing portion is greater than the clamping portion so that a difference is formed between the two; the fixing portion The movable block is connected to the movable block and can be located in the limiting groove for movable displacement; the clamping part is located on one side of the limiting piece for movable displacement and contacts the workpiece with a clamping surface. A monolithic method uses a jig as described in item 1 or 2 of the scope of patent application, comprising: positioning a side of a workpiece on a turret, causing the jig to be moved near the workpiece by a moving seat, and using the jig The clamping block clamps the workpiece. As described in item 7 of the scope of patent application, the turret uses a plurality of negative pressure suction nozzles to suck a plurality of workpieces, and simultaneously clamps a plurality of workpieces with a plurality of clamps corresponding to the number of negative pressure suction nozzles. A monolithic device includes a device using the monolithic method according to any one of claims 4 to 8 of the scope of patent application.