CN104647024A - Self-centering fixture - Google Patents
Self-centering fixture Download PDFInfo
- Publication number
- CN104647024A CN104647024A CN201510071334.2A CN201510071334A CN104647024A CN 104647024 A CN104647024 A CN 104647024A CN 201510071334 A CN201510071334 A CN 201510071334A CN 104647024 A CN104647024 A CN 104647024A
- Authority
- CN
- China
- Prior art keywords
- shifting
- shaped support
- self
- gripper shoe
- 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.)
- Pending
Links
Classifications
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B23—MACHINE TOOLS; METAL-WORKING NOT OTHERWISE PROVIDED FOR
- B23P—METAL-WORKING NOT OTHERWISE PROVIDED FOR; COMBINED OPERATIONS; UNIVERSAL MACHINE TOOLS
- B23P19/00—Machines for simply fitting together or separating metal parts or objects, or metal and non-metal parts, whether or not involving some deformation; Tools or devices therefor so far as not provided for in other classes
- B23P19/001—Article feeders for assembling machines
- B23P19/006—Holding or positioning the article in front of the applying tool
-
- 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
- B25B11/00—Work holders not covered by any preceding group in the subclass, e.g. magnetic work holders, vacuum work holders
- B25B11/02—Assembly jigs
Landscapes
- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Jigs For Machine Tools (AREA)
Abstract
The invention relates to a self-centering fixture. The self-centering fixture comprises a supporting plate, and is characterized in that a rectangular hole is formed in the supporting plate, and the upper surface of the supporting plate is provided with a cover-shaped support capable of covering the rectangular hole. A pin shaft is arranged between two side walls adjacent to two ends of the cover-shaped support, each pin shaft is provided with a shifting fork, and each shifting fork is provided with two shifting heads. The top of the cover-shaped support is provided with a hydraulic cylinder, a piston rod of the hydraulic cylinder stretches into the cover-shaped support and connected with a pull rod. Two sides of the lower end of the pull rod are respectively provided with a groove, and a pair of shifting heads corresponding to the two shifting forks respectively stretch into the corresponding groove. Two slide plates are arranged below the supporting plate, two slide plates are respectively provided with a shifting hole, two shifting heads on the same side of the two shifting forks are respectively inserted into the corresponding shifting hole. The lower surface of the slide plate is connected with a clamping block, the adjacent surfaces of the two clamping blocks are provided with a V-shaped clamping opening, and the openings of the V-shaped clamping openings are opposite to each other. By adopting the self-centering fixture, the clamp center does not need to be adjusted, and the production efficiency can be greatly improved. The self-centering fixture is suitable for clamping a rod-shaped or a tubular workpiece.
Description
Technical field
The present invention relates to a kind of fixture.Specifically, be used to the self-centering fixture clamping workpiece to be machined, be particularly useful for the clamping to shaft-like or tubular workpiece on automatic assembly line.
Technical field
All know at mechanical processing industry, on some automatic assembly lines, fixture need be adopted to be fixed shaft-like or tubular workpiece.Traditional fixture is included in support side and arranges a fixed clamp block, the dynamic fixture block of a dependence actuating unit promotion is set at the offside of clamp block again, promote dynamic fixture block by actuating unit, shaft-like or tubular workpiece can be realized to be clamped between clamp block and dynamic fixture block.Because the actuating unit of above-mentioned fixture by clamp block, dynamic fixture block and the dynamic fixture block of promotion forms, clamp block is in the state of maintaining static all the time, and only have dynamic fixture block in motion, when after the shaft-like or tubular workpiece assembling completing a kind of specification (a kind of diameter), when more shaft-like the or tubular workpiece of another kind of specification (another kind of diameter) being assembled, just need to unload clamp block to adjust Clamping Center, and the adjustment of Clamping Center is very difficult.Therefore, adopt above-mentioned fixture to clamp the shaft-like of different size or tubular workpiece, not only Clamping Center is aimed at more difficult, and production efficiency is low.
Summary of the invention
The problem to be solved in the present invention is to provide a kind of self-centering fixture.Adopt this fixture to clamp the shaft-like of different size or tubular workpiece, do not need to adjust Clamping Center, can greatly enhance productivity.
The problems referred to above that the present invention will solve are realized by following technical scheme:
Self-centering fixture of the present invention comprises gripper shoe, is characterized in that gripper shoe has slot, support plate upper surface has the hood-shaped support that can cover slot.On the two side at hood-shaped support two, all there is axis hole, between relative two side axis hole, all have bearing pin, described two bearing pins all have the shift fork that can rotate around bearing pin.There is hydraulic cylinder at hood-shaped cradle top center, and down and stretch in hood-shaped support, described piston-rod lower end is connected with pull bar to the piston rod of hydraulic cylinder.Described shift fork all has two shifting blocks, and the angle between two shifting blocks on same shift fork is less than 90 degree.Both sides, pull bar lower end are all fluted, and the shifting block that described two shift forks are relative stretches in the corresponding recesses of pull bar lower end in moving type respectively.Have two pieces of slide plates that can slide along gripper shoe face below gripper shoe, the glide direction of described slide plate and the axis of bearing pin are perpendicular, and two pieces of slide plates all have pulling hole, and two shifting blocks of two another homonymies of shift fork are that slip shape inserts in corresponding pulling hole respectively.All be connected with fixture block below described slide plate, the proximal surface of two fixture blocks all has V-arrangement jaws, the oral area of described V-arrangement jaws is positioned opposite.
Wherein, all there is lower chimb on the longitudinal both sides of lower surface of two gripper shoes, and the following of twice chimbs all has internal projection.All there is cannelure the both sides of two pieces of slide plate its upper surfaces contiguous, in being slidably matched between described cannelure and described internal projection.
As can be seen from the above scheme, due to gripper shoe having slot, support plate upper surface there are the vertical projection that can cover slot and the suitable hood-shaped support of slot.On the two side at hood-shaped support two, all there is axis hole, between relative two side axis hole, all have bearing pin, two bearing pins all have the shift fork that can rotate around bearing pin.Hood-shaped support has hydraulic cylinder, and down and stretch in hood-shaped support, and piston-rod lower end is connected with pull bar to the piston rod of hydraulic cylinder.Described shift fork all has two shifting blocks, and the angle between two shifting blocks on same shift fork is less than 90 degree.Both sides, pull bar lower end are all fluted, and the shifting block of described two shift fork homonymies stretches in the corresponding recesses of pull bar lower end in moving type respectively.Two pieces of slide plates that can slide along gripper shoe face are had below gripper shoe, the glide direction of described slide plate and the axis of described bearing pin perpendicular, two pieces of slide plates all have pulling hole, and two shifting blocks of two another homonymies of shift fork insert in the pulling hole on two pieces of slide plates in slip shape respectively.All fixture block is connected with below described slide plate.During work, inside contracting by hydraulic cylinder piston rod, pull bar can be driven to move up together, again by pull bar drive two shift forks respectively around corresponding bearing pin to inner rotary, and then to be driven together with two pieces of slide plates by the shifting block of two the shift fork homonymies be connected with two slide plates and inwardly slide, two fixture blocks be connected with slide plate are inwardly closed up, until realize clamping that is shaft-like or tubular workpiece.Otherwise, overhanging by hydraulic cylinder piston rod, stretch under can driving pull bar, two shift forks are driven inwardly to rotate around corresponding bearing pin respectively by pull bar again, and then to be driven together with two pieces of slide plates by the shifting block of two the shift fork homonymies be connected with two slide plates and outwards slide, two fixture blocks be connected with slide plate are outwards separated, relieves the clamping to shaft-like or tubular workpiece.As can be seen here; no matter be that shaft-like or tubular workpiece are clamped or removed clamping that is shaft-like or tubular workpiece; two fixture blocks are all inwardly close up or outwards separate simultaneously; the present invention is just determined its Clamping Center after finalization of the manufacture, avoids in use procedure afterwards the trouble and difficulty that need to adjust Clamping Center.Do not need to adjust Clamping Center due in use procedure afterwards again, no matter clamp the shaft-like or tubular workpiece of any specification (diameter), do not need to regulate Clamping Center, compared with background technology, can greatly enhance productivity.
Accompanying drawing explanation
Fig. 1 is self-centering fixture structural representation of the present invention;
Fig. 2 is the A-A cross-sectional schematic of Fig. 1, and two fixture blocks are wherein in closed configuration and are clamped with workpiece;
Fig. 3 is the A-A cross-sectional schematic of Fig. 1, and two fixture blocks are wherein in separated position.
Detailed description of the invention
As shown in Figure 1, Figure 2 and Figure 3, self-centering fixture of the present invention comprises gripper shoe 3, gripper shoe 3 is processed with slot 8.Gripper shoe 3 upper surface is provided with hood-shaped support 2, and the oral area of hood-shaped support 2 is fixed on the surrounding of slot 8.On the two side at hood-shaped support 2 two, be all processed with axis hole, between relative two side axis hole, bearing pin 9 be all installed, described two bearing pins 9 are all provided with the shift fork 13 that can rotate around bearing pin 9.Hood-shaped support 2 top center is provided with hydraulic cylinder 1, and down and stretch in hood-shaped support 2, described piston rod 10 lower end is connected with pull bar 11 to the piston rod 10 of hydraulic cylinder 1.
Described shift fork 13 is all containing two shifting blocks 14, and the angle between two shifting blocks 14 on same shift fork 13 is less than 90 degree.Both sides, pull bar 11 lower end are all processed with groove 12, and a pair shifting block 14 that described two shift forks 13 are relative stretches in a pair groove 12 of pull bar 11 lower end in moving type respectively.Gripper shoe 3 is provided with two pieces of slide plates 5 that can slide along gripper shoe 3 below, the glide direction of described slide plate 5 and the axis of bearing pin 9 perpendicular, two pieces of slide plates 5 are all processed with pulling hole 7, two shift forks 13 another relative shifting block 14 is inserted in corresponding pulling hole 7 in slip shape respectively.Described slide plate 5 is all connected with fixture block 15 below, and the proximal surface of two fixture blocks 15 is all processed with V-arrangement jaws 16, and the oral area of described V-arrangement jaws 16 is positioned opposite.
Wherein, the longitudinal both sides of the lower surface of two gripper shoes 3 are all processed with the following of lower chimb 4, twice chimbs 4 and are all processed with internal projection 6.The both sides of two pieces of slide plate 5 its upper surfaces contiguous are all processed with cannelure, in being slidably matched between described cannelure and described internal projection 6.
During work, by inside contracting of the piston rod 10 of hydraulic cylinder 1, pull bar 11 can be driven to move up together, again by pull bar 11 drive two shift forks 13 respectively around corresponding bearing pin 9 to inner rotary, and then to be driven together with two pieces of slide plates 5 by the shifting block 14 of two shift fork 13 homonymies be connected with two slide plates 5 and inwardly slide, two fixture blocks 15 be connected with slide plate 5 are inwardly closed up, until realize clamping that is shaft-like or tubular workpiece 17, sees Fig. 2.Otherwise, overhanging by the piston rod 10 of hydraulic cylinder 1, pull bar can be driven to stretch for 11 times, two shift forks 13 are driven inwardly to rotate around corresponding bearing pin 9 respectively by pull bar 11 again, and then to be driven together with two pieces of slide plates 5 by the shifting block 14 of two shift fork 13 homonymies be connected with two slide plates 5 and outwards slide, two fixture blocks 15 be connected with slide plate 5 are outwards separated, relieves clamping that is shaft-like or tubular workpiece 17, see Fig. 3.
Claims (2)
1. self-centering fixture, comprises gripper shoe (3), it is characterized in that gripper shoe (3) has slot (8), gripper shoe (3) upper surface has the hood-shaped support (2) that can cover slot (8); On the two side at hood-shaped support (2) two, all there is axis hole, all have bearing pin (9) between relative two side axis hole, described two bearing pins (9) all have the shift fork (13) that can rotate around bearing pin (9); Hood-shaped support (2) top center has hydraulic cylinder (1), and down and stretch in hood-shaped support (2), described piston rod (10) lower end is connected with pull bar (11) to the piston rod (10) of hydraulic cylinder (1); Described shift fork (13) all has two shifting blocks (14), and the angle between two shifting blocks on same shift fork is less than 90 degree; Pull bar (11) both sides, lower end all fluted (12), relative a pair shifting block (14) of described two shift forks (13) stretches in the corresponding recesses (12) of pull bar (11) lower end in moving type respectively, gripper shoe (3) has the two pieces of slide plates (5) can slided along gripper shoe (3) below, the glide direction of described slide plate (5) and the axis of bearing pin (9) perpendicular, two pieces of slide plates (5) all have pulling hole (7), and a pair shifting block of two another homonymies of shift fork (13) inserts in corresponding pulling hole (7) in slip shape respectively; Described slide plate (5) is all connected with fixture block (15) below, and the proximal surface of two fixture blocks (15) all has V-arrangement jaws (16), the oral area of described V-arrangement jaws (16) is positioned opposite.
2. self-centering fixture according to claim 1, it is characterized in that all there is lower chimb (4) on the longitudinal both sides of the lower surface of two gripper shoes (3), the following of twice chimbs (4) all has internal projection (6); All there is cannelure the both sides of two pieces of slide plate (5) its upper surfaces contiguous, in being slidably matched between described cannelure and described internal projection (6).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201510071334.2A CN104647024A (en) | 2015-02-11 | 2015-02-11 | Self-centering fixture |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201510071334.2A CN104647024A (en) | 2015-02-11 | 2015-02-11 | Self-centering fixture |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN104647024A true CN104647024A (en) | 2015-05-27 |
Family
ID=53238936
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201510071334.2A Pending CN104647024A (en) | 2015-02-11 | 2015-02-11 | Self-centering fixture |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN104647024A (en) |
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107154515A (en) * | 2017-04-12 | 2017-09-12 | 广州大正新材料科技有限公司 | 18650 battery barking methods and the manual device for peeling of 18650 batteries |
| CN107803688A (en) * | 2017-09-25 | 2018-03-16 | 孙德灿 | A kind of frock clamp |
| CN107953000A (en) * | 2017-12-20 | 2018-04-24 | 重庆市乐珐机电有限责任公司 | Speed changer ring flange gear-hobbing clamp |
| CN110238681A (en) * | 2019-05-28 | 2019-09-17 | 南京信息职业技术学院 | A kind of fixture |
Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US1832480A (en) * | 1927-08-23 | 1931-11-17 | Forkardt Paul | Chuck |
| JPH09225714A (en) * | 1996-02-16 | 1997-09-02 | Plus Eng:Kk | Four-jaw chuck |
| CN102806481A (en) * | 2011-05-30 | 2012-12-05 | 鹿丙稳 | Positioning clamping device for workpiece |
| CN102886703A (en) * | 2012-09-25 | 2013-01-23 | 宁波松鹰汽车部件有限公司 | Hydraulic self-centering fast clamping device |
| CN204545903U (en) * | 2015-02-11 | 2015-08-12 | 无锡惠发特精密机械有限公司 | Self-centering fixture |
-
2015
- 2015-02-11 CN CN201510071334.2A patent/CN104647024A/en active Pending
Patent Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US1832480A (en) * | 1927-08-23 | 1931-11-17 | Forkardt Paul | Chuck |
| JPH09225714A (en) * | 1996-02-16 | 1997-09-02 | Plus Eng:Kk | Four-jaw chuck |
| CN102806481A (en) * | 2011-05-30 | 2012-12-05 | 鹿丙稳 | Positioning clamping device for workpiece |
| CN102886703A (en) * | 2012-09-25 | 2013-01-23 | 宁波松鹰汽车部件有限公司 | Hydraulic self-centering fast clamping device |
| CN204545903U (en) * | 2015-02-11 | 2015-08-12 | 无锡惠发特精密机械有限公司 | Self-centering fixture |
Cited By (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107154515A (en) * | 2017-04-12 | 2017-09-12 | 广州大正新材料科技有限公司 | 18650 battery barking methods and the manual device for peeling of 18650 batteries |
| CN107154515B (en) * | 2017-04-12 | 2019-03-08 | 广州大正新材料科技有限公司 | The manual device for peeling of 18650 batteries |
| CN107803688A (en) * | 2017-09-25 | 2018-03-16 | 孙德灿 | A kind of frock clamp |
| CN107953000A (en) * | 2017-12-20 | 2018-04-24 | 重庆市乐珐机电有限责任公司 | Speed changer ring flange gear-hobbing clamp |
| CN107953000B (en) * | 2017-12-20 | 2019-02-19 | 重庆市乐珐机电有限责任公司 | Speed changer ring flange gear-hobbing clamp |
| CN110238681A (en) * | 2019-05-28 | 2019-09-17 | 南京信息职业技术学院 | A kind of fixture |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| KR101563987B1 (en) | Jig for fixing work piece | |
| CN104647024A (en) | Self-centering fixture | |
| CN204686507U (en) | Shaft member more than one piece clamping boring grab | |
| CN203592324U (en) | Special fixture for drilling circular part | |
| CN105312935A (en) | Guide cylinder clamping tool | |
| KR20130040515A (en) | O-ring inserting apparatus | |
| CN103394935A (en) | Pneumatic expansion type clamp | |
| CN104647023A (en) | Hydraulic self-centering clamp | |
| CN103786012A (en) | Axle clamping mechanism of elliptical jointing machine | |
| CN204545905U (en) | A kind of self-centering hydraulic fixture | |
| CN112571128A (en) | Clamp for hydraulic machine tool | |
| CN204621125U (en) | Clamping device | |
| CN104646990B (en) | Valve plate feeding mechanism of compression/restoration valve | |
| CN105619135A (en) | Pneumatic clamp for boring middle hole in splined hub | |
| CN204545903U (en) | Self-centering fixture | |
| CN204545904U (en) | A kind of self-centering fixture | |
| CN106078278A (en) | A kind of clamping apparatus of carving and milling machine mould | |
| CN203509650U (en) | Special-shaped piece clamp and double-end machine tool with same | |
| CN104647022A (en) | Self-centering clamp | |
| CN107717525A (en) | The tight clamping device of internal lock | |
| CN204545906U (en) | Self-centering hydraulic fixture | |
| CN105500397A (en) | Clamping device of mechanical arm | |
| CN109623697B (en) | Simple workpiece fixing table | |
| CN104369029A (en) | Clamp for removing blurs in gear-shifting swing rod pin hole | |
| CN105773408A (en) | Clamp for shifting fork grinding |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C06 | Publication | ||
| PB01 | Publication | ||
| C10 | Entry into substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| WD01 | Invention patent application deemed withdrawn after publication |
Application publication date: 20150527 |
|
| WD01 | Invention patent application deemed withdrawn after publication |