CN201505827U - Positioning clamp - Google Patents
Positioning clamp Download PDFInfo
- Publication number
- CN201505827U CN201505827U CN2009201932811U CN200920193281U CN201505827U CN 201505827 U CN201505827 U CN 201505827U CN 2009201932811 U CN2009201932811 U CN 2009201932811U CN 200920193281 U CN200920193281 U CN 200920193281U CN 201505827 U CN201505827 U CN 201505827U
- Authority
- CN
- China
- Prior art keywords
- piston
- steel ball
- piston rod
- ball sleeve
- positioning fixture
- 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.)
- Expired - Fee Related
Links
- 229910000831 Steel Inorganic materials 0.000 claims abstract description 60
- 239000010959 steel Substances 0.000 claims abstract description 60
- 230000006835 compression Effects 0.000 claims abstract description 43
- 238000007906 compression Methods 0.000 claims abstract description 43
- 230000000295 complement effect Effects 0.000 claims description 7
- 238000007789 sealing Methods 0.000 claims description 7
- 230000008878 coupling Effects 0.000 claims description 3
- 238000010168 coupling process Methods 0.000 claims description 3
- 238000005859 coupling reaction Methods 0.000 claims description 3
- 230000033001 locomotion Effects 0.000 claims description 2
- 238000006243 chemical reaction Methods 0.000 abstract description 5
- 230000007774 longterm Effects 0.000 description 4
- 238000000034 method Methods 0.000 description 4
- 238000005516 engineering process Methods 0.000 description 2
- 238000003754 machining Methods 0.000 description 2
- 238000012423 maintenance Methods 0.000 description 2
- 210000001138 tear Anatomy 0.000 description 2
- 239000000428 dust Substances 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 230000005484 gravity Effects 0.000 description 1
- 230000003252 repetitive effect Effects 0.000 description 1
Images
Landscapes
- Clamps And Clips (AREA)
Abstract
The utility model discloses a positioning clamp, relates to a positioning clamp used in a machine tool and an automatic exchange board, and belongs to the technical field of mechanical processing. The positioning clamp comprises a compression ring and a pressure buckle matched with each other; the pressure buckle comprises a base and a piston capable of moving up and down, and a piston rod capable of moving along with the piston is nested in the piston; the top end of the piston rod takes the shape of an inverted taper, a steel ball sheath, with the inner surface matched with the outer surfaces of the piston rod and the piston respectively, and fixed on the base of the pressure buckle, is sleeved outside the piston rod and the piston, and a plurality of pairs of steel balls are arranged on the steel ball sheath at the lowest part of the inverted tapered part of the piston rod; and the diameters at the upper and lower ends of the compression ring are increasingly larger than that at the middle part, and the minimum diameter at the middle part is equal to the sum of the minimum diameter of the piston rod and the diameters of a pair of steel balls. The positioning clamp is used for positioning when the machine tools are exchanged, or positioning the benchmark when the central automatic conversion working table is processed, and can reduce the time of clamping workpieces and correction of the equipment.
Description
[technical field]
The utility model relates to a kind of positioning fixture that is used for lathe and automatic switchboard, belongs to the Machining Technology field.
[background technology]
In field of machining; lathe and Automatic Exchange Work Benche are modal process equipments; when processing work, lathe frock and automatic conversion work platform need shut down when exchanging and again lathe frock and automatic conversion work platform be proofreaied and correct, thereby require a great deal of time at present.Simultaneously, lathe frock and the frequent exchange of conversion work platform in process automatically have very big wearing and tearing to anchor clamps, thereby cause problems such as the resetting difficulty is big, precision is low.In addition, because it is power that anchor clamps adopt source of the gas, building large-scale supply station except that need are special is used as the gas supply station, also owing to have moisture content in the source of the gas, pneumatic linear actuator in use often carries out piston because of uncleanly dust and airborne moisture content, anchor clamps length service time one will produce get rusty stuck, use inflexible phenomenon, or also usually owing to do not reach required air pressure cause the not opening hydrodynamic reciprocating sealing seat of cylinder, the patrix of anchor clamps just can not be realized replacing and corner like this.And when maintenance need completely knocked down, thereby cause maintenance difficult.
[summary of the invention]
The utility model aims to provide a kind of very high positioning fixture of precision that uses as the location and the clamping of lathe and Automatic Exchange Work Benche at the problem of above-mentioned anchor clamps.
Described positioning fixture is made up of the compression ring and the clinching of mutual coupling;
Clinching comprises a base and a piston that can move up and down, a nested piston rod that can move with piston in the piston; The piston rod top is a back taper, the outer ring set of piston rod and piston an inner surface be complementary with piston rod and outer surface of piston respectively, and be fixed on steel ball sleeve on the clinching base, the lowest part of steel ball sleeve at piston rod back taper position is provided with many to steel ball; Also be provided with in the piston many to the compression spring, the compression spring an end be connected with piston top, the other end is connected with the bottom of steel ball sleeve;
The diameter of two ends up and down of compression ring is all gradually greater than the middle part diameter, and its middle part minimum diameter equals the minimum diameter and a pair of diameter of the steel ball sum of piston rod.
In a preferred embodiment, described steel ball sleeve has been gone back ring set outward taper sheath, the lower end inner surface that described pressure is encircled is a back taper, the conical outer surface of taper sheath is complementary with pressing the back taper lower end inner surface that is encircled.Increase the location clamping force, reduce the error that wearing and tearing brought that produces in long-term the use.
In addition, described taper sheath lower end can also preferably connect many to the compression spring, and the other end of compression spring is connected with steel ball sleeve.Thereby further locate clamping force, reduce the error that wearing and tearing brought that produces in long-term the use.
In another preferred embodiment, piston has a hydraulic means.Wherein, described hydraulic means oil pocket that is provided with oil inlet pipe preferably.
In addition, between described piston and the steel ball sleeve, and all sealing ring can be set preferably between described steel ball sleeve and the clinching base, to prevent oil leakage phenomenon.
In another preferred embodiment, when compression ring was withheld mutually with clinching, the contacted surface of steel ball sleeve and compression ring matched each other.Thereby the balance when further increasing the location clamping makes the location more stable.
In another preferred embodiment, can also be provided with the dedusting air admission hole in the described steel ball sleeve.
Technique effect of the present utility model is:
Make location usefulness when being used for the exchange of lathe frock, or the location benchmark of the automatic conversion work platform of machining center, thereby reduce the downtime of equipment, reduce time in equipment clamping workpiece and correction.
In addition, in a preferred embodiment, adopt the two-sided constraint clamping mode of movable tapered sleeve, and the pallet that has positioning function clamps, the main oil pressure that uses is released brute force compression spring, pack into go up frock after, remove oil pressure and make powerful compression spring pulling steel ball produce clamping force.Repetitive positioning accuracy height, good rigidly.Work in-process heart workbench realizes that sub-anchor clamps exchange, and can be used as the location of machining center automatic switchboard and clamp to use.Enhance productivity greatly.
[description of drawings]
Fig. 1 is a structural representation of the present utility model;
Cutaway view when Fig. 2 does not clamp for the utility model;
Fig. 3 is the cutaway view of the utility model when clamping;
Fig. 4 is the utility model structural representation in use;
1 compression ring, 2 clinchings, 3 bases, 4 pistons, 5 piston rods, 6 steel ball sleeves, 7 steel balls, 8 pistons compression spring, 9 taper sheaths, 10 taper sheaths compression spring, 11 oil inlet pipes, 12 oil pockets, the sealing ring of 13 pistons and steel ball sleeve, the sealing ring between 14 steel ball sleeves and the clinching base, 15 dedusting air admission holes.16 radial location contact-making surfaces, 17 clamping action faces
[specific embodiment]
As shown in the figure, a kind of positioning fixture of the present utility model is made up of the compression ring 1 and the clinching 2 of mutual coupling.
Wherein, clinching 2 comprises a base 3 and a piston 4, and piston 4 can move up and down by the oil pocket of bringing oil pipe 11 into 12 that is provided with below, in the piston 4 nested one can be with the piston rod 5 of piston 4 motions; Piston rod 5 tops are back taper, piston rod 5 and piston 4 outer ring sets an inner surface be complementary with piston rod 5 and piston 4 outer surfaces respectively, and be fixed on steel ball sleeve 6 on the clinching base 3, be provided with dedusting air admission hole 15 in the steel ball sleeve 6, and the lowest part of steel ball sleeve 6 at piston rod 5 back taper positions is provided with many to steel ball 7; Wherein, between described piston 4 and the steel ball sleeve 6, be provided with sealing ring 13,14 respectively between described steel ball sleeve 6 and the clinching base 3; Also be provided with in the piston 4 many to the compression spring 8, the compression spring 8 an end be connected with piston 4 tops, the other end is connected with the bottom of steel ball sleeve 6.
The diameter of two ends up and down of compression ring 1 is all gradually greater than the middle part diameter, and its middle part minimum diameter equals the minimum diameter and a pair of steel ball 7 diameter sums of piston rod 5.When compression ring 1 was withheld mutually with clinching 2, steel ball sleeve 6 matched each other with compression ring 1 contacted surface.
In addition, described steel ball sleeve 6 the is outer taper sheath 9 of having gone back ring set, the lower end inner surface that described pressure is encircled is a back taper, the conical outer surface of taper sheath 9 is complementary with pressing the back taper lower end inner surface that is encircled.And taper sheath 9 lower ends have connected many to compression spring 10, and the other end of compression spring 10 is connected with steel ball sleeve 6.
Positioning fixture is not before clamping, piston 4 since gravity to the whereabouts, drive piston rod 5 to the whereabouts thereupon, because the position of steel ball sleeve 6 is fixed, so outside compressed steel pearl 7 in back taper top of piston rod 5, make steel ball 7 outwards press steel ball sleeve 6, so the diameter of steel ball sleeve 6 this moment in the position of steel ball 7 becomes big.
When passing through oil inlet pipe 11 after oil pocket 12 oil-feeds, oil moves upward piston 4, drive piston rod 5 moves upward thereupon, so steel ball 7 is in the lowest part on piston rod 5 back taper tops, be not subjected to the extruding of piston rod 5, therefore the diameter of steel ball sleeve 6 this moment in the position of steel ball 7 fades to minimum gradually.
Put down compression ring 1 then, because the diameter of two ends up and down of compression ring 1 is all gradually greater than the middle part diameter, its middle part minimum diameter equals the minimum diameter and a pair of steel ball 7 diameter sums of piston rod 5, so the steel ball sleeve 6 of steel ball 7 positions can be passed in compression ring 1 middle part at this moment.
At this moment the oil in the oil pocket 12 is discharged by oil inlet pipe 11, so piston 4 falls after rise, piston rod 5 falls after rise thereupon, and the diameter of steel ball sleeve 6 in steel ball 7 positions becomes greatly once more, makes to produce a clamping action face 17 between compression ring 1 and the steel ball 7, and compression ring 1 is fixedly clamped.
In addition, the compression spring 8 that is provided with on the piston 4 will be further to pressing down piston 4, so piston rod 5 also thereupon by further to pressing down, thereby the clamping force on the clamping action face 17 between steel ball 7 and the compression ring 1 is further increased.And, after piston 4 weares and teares, compress spring 8 and also can eliminate the loss that wearing and tearing bring when positioning fixture uses through long-term.
Simultaneously, because the conical outer surface of taper sheath 9 is complementary with pressing the back taper lower end inner surface that is encircled, therefore produce a radial location contact-making surface 16 between the back taper lower end inner surface that the conical outer surface of taper sheath 9 and pressure are encircled, and pass through the many of taper sheath 9 lower ends, further increase the location clamping force on this radial location contact-making surface 16 compression spring 10.In addition, when positioning fixture uses through long-term, after taper sheath 9 weares and teares, compress spring 10 and also can eliminate the loss that wearing and tearing bring.
Once more, because when compression ring 1 was withheld mutually with clinching 2, steel ball sleeve 6 matched each other with compression ring 1 contacted surface, therefore touching position produces a radial location contact-making surface 16 between steel ball sleeve 6 and compression ring 1, increase the location clamping force of positioning fixture, make the location more stable.
At last, by the mutual synergy of above-mentioned each parts, make and to produce stable mutual location and powerful mutual clamping force between clinching 2 and the compression ring 1.
Claims (9)
1. a positioning fixture is characterized in that being made up of with clinching (2) the compression ring (1) of mutual coupling;
Clinching (2) comprises a base (3) and a piston that can move up and down (4), in the piston (4) nested one can be with the piston rod (5) of piston (4) motion; Piston rod (5) top is a back taper, piston rod (5) and the outer ring set of piston (4) inner surface be complementary with piston rod (5) and piston (4) outer surface respectively, and being fixed on steel ball sleeve (6) on the clinching base (3), the lowest part of steel ball sleeve (6) at piston rod (5) back taper position is provided with many to steel ball (7); Also be provided with in the piston (4) many to the compression spring (8), the compression spring (8) an end be connected with piston (4) top, the other end is connected with the bottom of steel ball sleeve (6);
The diameter of two ends up and down of compression ring (1) is all gradually greater than the middle part diameter, and its middle part minimum diameter equals the minimum diameter and a pair of steel ball (7) the diameter sum of piston rod (5).
2. positioning fixture as claimed in claim 1, it is characterized in that the outer taper sheath (9) of having gone back ring set of described steel ball sleeve (6), the lower end inner surface that described pressure is encircled is a back taper, and the conical outer surface of taper sheath (9) is complementary with pressing the back taper lower end inner surface that is encircled.
3. positioning fixture as claimed in claim 2, it is many to compression spring (10) to it is characterized in that described taper sheath (9) lower end has connected, and the other end of compression spring (10) is connected with steel ball sleeve (6).
4. positioning fixture as claimed in claim 1 or 2 is characterized in that piston (4) has a hydraulic means.
5. positioning fixture as claimed in claim 4 is characterized in that described hydraulic means is an oil pocket (12) that is provided with oil inlet pipe (11).
6. positioning fixture as claimed in claim 5 is characterized in that being provided with sealing ring (13) between described piston (4) and the steel ball sleeve (6).
7. positioning fixture as claimed in claim 6 is characterized in that being provided with sealing ring (14) between described steel ball sleeve (6) and the clinching base (3).
8. positioning fixture as claimed in claim 1 or 2 is characterized in that steel ball sleeve (6) matches each other with the contacted surface of compression ring (1) when compression ring (1) and clinching (2) when withholding mutually.
9. positioning fixture as claimed in claim 1 or 2 is characterized in that also being provided with in the described steel ball sleeve (6) dedusting air admission hole (15).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2009201932811U CN201505827U (en) | 2009-08-24 | 2009-08-24 | Positioning clamp |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2009201932811U CN201505827U (en) | 2009-08-24 | 2009-08-24 | Positioning clamp |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN201505827U true CN201505827U (en) | 2010-06-16 |
Family
ID=42466962
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN2009201932811U Expired - Fee Related CN201505827U (en) | 2009-08-24 | 2009-08-24 | Positioning clamp |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN201505827U (en) |
Cited By (12)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102975040A (en) * | 2012-11-21 | 2013-03-20 | 无锡市贝斯特精密机械有限公司 | Plane-contact weight reduction device |
| CN103465056A (en) * | 2013-09-02 | 2013-12-25 | 安徽涌诚机械有限公司 | Fixture body for production of self-contained benches for all-electric injection moulding machines |
| CN103878081A (en) * | 2014-04-10 | 2014-06-25 | 哈尔滨东安发动机（集团）有限公司 | Quick clamping and locking device |
| CN104128836A (en) * | 2014-07-30 | 2014-11-05 | 浙江瑞宏机器人有限公司 | Pneumatic locating and clamping quick change mechanism |
| CN104209790A (en) * | 2014-02-11 | 2014-12-17 | 刘娟 | Preposed precise hydraulic collet |
| CN104482844A (en) * | 2014-12-26 | 2015-04-01 | 浙江瑞虹空调配件有限公司 | Detection equipment for measuring concentricity of air conditioning clutch coil housing |
| CN107052861A (en) * | 2017-04-14 | 2017-08-18 | 昆山冠品优精密机械有限公司 | Quick-clamping detent mechanism |
| TWI615232B (en) * | 2016-07-05 | 2018-02-21 | Cherng Jin Technology Co Ltd | Improved mold base |
| CN109015009A (en) * | 2018-07-31 | 2018-12-18 | 东莞美商博瑞智能科技有限公司 | Blossom type lathe positioning clamping apparatus |
| CN109256921A (en) * | 2018-09-17 | 2019-01-22 | 佛山登奇机电技术有限公司 | A kind of motor cover brill attacks fixture |
| CN112338286A (en) * | 2020-10-26 | 2021-02-09 | 江苏安全技术职业学院 | Workpiece notch trimming device |
| CN113883134A (en) * | 2021-09-29 | 2022-01-04 | 东风本田汽车有限公司 | Part positioning and connecting device and positioning and connecting method |
-
2009
- 2009-08-24 CN CN2009201932811U patent/CN201505827U/en not_active Expired - Fee Related
Cited By (16)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102975040A (en) * | 2012-11-21 | 2013-03-20 | 无锡市贝斯特精密机械有限公司 | Plane-contact weight reduction device |
| CN103465056A (en) * | 2013-09-02 | 2013-12-25 | 安徽涌诚机械有限公司 | Fixture body for production of self-contained benches for all-electric injection moulding machines |
| CN103465056B (en) * | 2013-09-02 | 2015-12-16 | 安徽涌诚机械有限公司 | A kind ofly manufacture the full electric injection molding machine jig main body carrying workbench |
| CN104209790A (en) * | 2014-02-11 | 2014-12-17 | 刘娟 | Preposed precise hydraulic collet |
| CN104209790B (en) * | 2014-02-11 | 2016-07-06 | 湖北韵生航天科技有限公司 | Forward type precise hydraulic collet chuck |
| CN103878081A (en) * | 2014-04-10 | 2014-06-25 | 哈尔滨东安发动机（集团）有限公司 | Quick clamping and locking device |
| CN104128836A (en) * | 2014-07-30 | 2014-11-05 | 浙江瑞宏机器人有限公司 | Pneumatic locating and clamping quick change mechanism |
| CN104482844A (en) * | 2014-12-26 | 2015-04-01 | 浙江瑞虹空调配件有限公司 | Detection equipment for measuring concentricity of air conditioning clutch coil housing |
| TWI615232B (en) * | 2016-07-05 | 2018-02-21 | Cherng Jin Technology Co Ltd | Improved mold base |
| CN107052861A (en) * | 2017-04-14 | 2017-08-18 | 昆山冠品优精密机械有限公司 | Quick-clamping detent mechanism |
| CN109015009A (en) * | 2018-07-31 | 2018-12-18 | 东莞美商博瑞智能科技有限公司 | Blossom type lathe positioning clamping apparatus |
| CN109256921A (en) * | 2018-09-17 | 2019-01-22 | 佛山登奇机电技术有限公司 | A kind of motor cover brill attacks fixture |
| CN109256921B (en) * | 2018-09-17 | 2024-05-07 | 佛山登奇机电技术有限公司 | Motor cover drilling and tapping clamp |
| CN112338286A (en) * | 2020-10-26 | 2021-02-09 | 江苏安全技术职业学院 | Workpiece notch trimming device |
| CN112338286B (en) * | 2020-10-26 | 2023-02-24 | 江苏安全技术职业学院 | Workpiece notch trimming device |
| CN113883134A (en) * | 2021-09-29 | 2022-01-04 | 东风本田汽车有限公司 | Part positioning and connecting device and positioning and connecting method |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN201505827U (en) | Positioning clamp | |
| CN202498383U (en) | Chuck and clamp for rapid positioning | |
| CN203636121U (en) | Dish type gear shaving tool | |
| CN203556902U (en) | Hydraulic self-centering pull-down expansion sleeve mechanism | |
| CN204711218U (en) | Milling machine automatic filing removing main shaft | |
| CN204621625U (en) | Numerical control machining center efficiently exchanges clamping device | |
| CN105881062A (en) | Positioning and clamping device for diamond workpieces | |
| CN209868046U (en) | Frock clamp mechanism | |
| CN102785098B (en) | Hydraulic fixture for four-hole drilling for end tooth flange yoke of drive shaft | |
| CN209887151U (en) | Workpiece clamp for vertical machining center | |
| CN201483269U (en) | Novel fixture for two end surfaces, inner bore and spherical outside surface of bearing frame lathe | |
| CN207824415U (en) | A kind of vertical machining centre pneumatic expansion device | |
| CN202162578U (en) | Pedal type clamping cylinder | |
| CN209349539U (en) | A kind of automobile-used clamping device of accurate digital control row | |
| CN111015308B (en) | Automatic flexible mirror image clamping vibration damper for numerical control machine tool | |
| CN203076969U (en) | Device for indexing and boring machining of large disk-type workpiece on boring mill | |
| CN208895611U (en) | Blossom type lathe positioning clamping apparatus | |
| CN202571946U (en) | Plate hold-down device | |
| CN208514092U (en) | A kind of two-sided processing multistation composite tooling of bias product | |
| CN202639038U (en) | Processing device for aluminum sliding bush hole | |
| CN203900525U (en) | Pneumatic chuck of lathe | |
| CN110434364A (en) | A kind of accurate digital control arranges automobile-used clamping device and its application method | |
| CN105437073A (en) | Multi-station grinding machine fixture | |
| CN104028792B (en) | Pneumatic chuck of lathe | |
| CN110154068A (en) | A pneumatic fixture of robot for porous part |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| ASS | Succession or assignment of patent right |
Owner name: GUANGZHOU HONGTONG MACHINERY MANUFACTURE CO., LTD. Free format text: FORMER OWNER: CHENG GUANGCHENG Effective date: 20110331 |
|
| C41 | Transfer of patent application or patent right or utility model | ||
| COR | Change of bibliographic data |
Free format text: CORRECT: ADDRESS; FROM: 510360 NO. 169-1, KUIPENG ROAD, LIWAN DISTRICT, GUANGZHOU CITY, GUANGDONG PROVINCE TO: 510360 NO. 169-1, KUIPENG ROAD, LIWAN DISTRICT, GUANGZHOU CITY |
|
| TR01 | Transfer of patent right |
Effective date of registration: 20110331 Address after: 510360 Guangzhou Liwan District City Kwai Peng Lu 169 number one Patentee after: Guangzhou Hongtong Machinery Manufacture Co., Ltd. Address before: 510360 Guangdong city of Guangzhou province Liwan District Kwai Peng Lu 169 number one Patentee before: Cheng Guangcheng |
|
| CF01 | Termination of patent right due to non-payment of annual fee | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20100616 Termination date: 20160824 |