CN104511664A - High-accuracy elastic clamping tool - Google Patents
High-accuracy elastic clamping tool Download PDFInfo
- Publication number
- CN104511664A CN104511664A CN201410791714.9A CN201410791714A CN104511664A CN 104511664 A CN104511664 A CN 104511664A CN 201410791714 A CN201410791714 A CN 201410791714A CN 104511664 A CN104511664 A CN 104511664A
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- China
- Prior art keywords
- elastic sheet
- clamp body
- support plate
- clamping tool
- elastic
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Abstract
The invention discloses a high-accuracy elastic clamping tool which comprises a fixture and a pull rod. An elastic thin plate with an annular side wall is arranged in the front of the fixture, a supporting plate is fixedly arranged on the pull rod, the elastic thin plate is provided with an anti-collision hole corresponding to the rear end of the pull rod, a convex ring is fixedly arranged on the front end face of the supporting plate, the fixture is connected with a positioning rod, the positioning rod penetrates the supporting plate and the elastic thin plate, a positioning disk is fixedly connected on the positioning rod, three jaws are uniformly arranged on the periphery of the elastic thin plate, the fixture is connected with a connecting rod, the connecting rod penetrates the supporting plate and the elastic thin plate, a fixing plate is fixedly connected on the connecting rod, outer pull rods penetrate the supporting plate, the elastic thin plate and the fixing plate, thrust bearings are arranged on the outer pull rods, inclined grooves are formed in the middles of the pull rods, screws are fixedly arranged on the fixing plate, the ends of the screws are positioned in inclined grooves of the screws, pressing plates are connected at the front ends of the outer pull rods, and pressing bolts are connected on the pressing plates. The high-accuracy elastic clamping tool has the advantages of convenience in clamping, high efficiency, small abrasion, long service life and high positioning accuracy.
Description
Technical field
The present invention relates to a kind of clamping tool, especially for the high precision elastic clamping tool of machining gears.
Background technology
At present, when machining gears, multiplex clamping with three-jaw chuck, spanner need be operated and move claw by transmission mechanism, not only clamp inconvenience, efficiency is low, and tooth top or end face location can only be clamped, cannot aligning, positioning precision poor, add that the wearing and tearing of fixture are very fast, be difficult to service life meet the demands.
Summary of the invention
The object of the invention is for prior art above shortcomings, provide a kind of elastic sheet fixture, it has, and clamping is convenient, efficiency is high, advantage that is little, long service life of wearing and tearing, and can realize automatic aligning and location, front and rear end, and positioning precision is high.
For achieving the above object, high precision elastic clamping tool of the present invention, comprise clamp body, slide through the pull bar in the middle part of clamp body, it is characterized in that the elastic sheet being provided with band annular sidewall in clamp body front, its annular sidewall and clamp body connect firmly, pull bar between clamp body and elastic sheet is installed with support plate, elastic sheet is provided with the resigning hole corresponding with back end of tie rod, the bulge loop be positioned at outside resigning hole is installed with at the front end face of support plate, clamp body is associated with the backstay that more than is passed support plate and elastic sheet, backstay is fixedly connected with positioning disk, elastic sheet outside positioning disk is provided with at three circumferentially uniform claws, clamp body is associated with the connecting rod that more than is passed support plate and elastic sheet, connecting rod is fixedly connected with fixed head, the outside link of more than one axis is through support plate, elastic sheet and fixed head, the outside link of support plate both sides is equipped with thrust bearing, skewed slot is equipped with at the middle part of outside link, fixed head is installed with the screw that end is arranged in respective skewed slot, is all associated with pressing plate in the front end of outside link, pressing plate is all associated with hold-down bolt by screw thread.
Elastic sheet of the present invention can carry out elastic deformation within the specific limits, is in the state of inside contracting when nature in the middle part of it, and three claws inwardly shrink, can holding workpiece, during use, pull bar is connected with the hydraulic jack of lathe, driven forward pull bar, support plate is driven synchronously to move forward, the middle part that elastic sheet inside contracts is pushed away before making its bulge loop, three claws outwards strut, support plate drives outside link reach simultaneously, screw promotes outside link by skewed slot and outwards rotates, now workpiece can be put among three claws, and workpiece rear end face is close to positioning disk, pull back pull bar again, move after support plate is synchronous, elastic sheet recovers nature, the state of inside contracting is in the middle part of it, three claws inwardly shrink, can clamping work pieces cylindrical, support plate moves after driving outside link simultaneously, screw promotes outside link by skewed slot and inwardly rotates, hold-down bolt is pressed on the front end face of workpiece, complete both ends of the surface location, the present invention is by pulling pull bar holding workpiece, and clamping is convenient, efficiency is high, and transmission mechanism-free, wear and tear little, long service life, and location, front and rear end can be realized, positioning precision is high,
As a further improvement on the present invention, three briquettings are provided with on rear side of elastic sheet, on front side of elastic sheet, correspondence is provided with three locating pieces, the more than one positioning sleeve through elastic sheet is provided with between briquetting and corresponding locating piece, the screw of more than one is connected with locating piece by screw thread through briquetting, positioning sleeve, locating piece is equipped with T-slot, is provided with T-shaped bar in T-slot, and described claw is connected with corresponding T-shaped bar by screw; Be convenient to dismounting claw, and pass through the radial position of T-shaped bar adjustable claw, improve versatility;
As a further improvement on the present invention, inside each claw, be equipped with the plug contacted with it; During clamping, be placed in by plug in teeth groove, claw compresses plug, is located by plug and adjacent two face, can automatic aligning, positioning precision high;
As a further improvement on the present invention, the annular sidewall of clamp body and elastic sheet is by several screw attachment, and backstay and clamp body are by thread connection, and positioning disk and backstay pass through screw attachment; Connecting rod and clamp body pass through thread connection; Be convenient to mounting or dismounting;
As a further improvement on the present invention, the rear end of hold-down bolt is provided with nut, and on the hold-down bolt between this nut and pressing plate, cover has Compress Spring; Compress Spring can apply pretightning force to hold-down bolt, prevents it from loosening, moves forward, guarantee workpiece pressing;
In sum, the present invention has that clamping is convenient, efficiency is high, advantage that is little, long service life of wearing and tearing, and can realize automatic aligning and location, front and rear end, and positioning precision is high.
Accompanying drawing explanation
Fig. 1 is the front view of the embodiment of the present invention.
Fig. 2 is the right view of Fig. 1.
Fig. 3 is the front view of T-shaped bar in Fig. 1.
Fig. 4 is the right view of Fig. 3.
Fig. 5 is the A-A profile of Fig. 4.
Detailed description of the invention
Below in conjunction with accompanying drawing, the present invention is further detailed explanation.
As shown in Figures 1 to 5, this high precision elastic clamping tool, comprise clamp body 1, slide through the pull bar 2 in the middle part of clamp body, the elastic sheet 3 of band annular sidewall 3a is provided with in clamp body 1 front, its annular sidewall 3a is connected firmly with clamp body 1 by several screw 4, pull bar 2 between clamp body 1 and elastic sheet 3 is installed with support plate 5 by step and locking nut, elastic sheet 3 is provided with the resigning hole 3b corresponding with pull bar 2 rear end, the bulge loop 5a be positioned at outside resigning hole 3b is installed with at the front end face of support plate 5, clamp body 1 is associated with by screw thread the backstay 6 that is passed support plate 5 and elastic sheet 3, backstay 6 is fixedly connected with positioning disk 7 by screw, three briquettings 8 are provided with on rear side of elastic sheet 3, on front side of elastic sheet 3, correspondence is provided with three locating pieces 9, two positioning sleeves 10 through elastic sheet 3 are provided with between briquetting 8 and corresponding locating piece 9, two screws 11 are through briquetting 8, corresponding positioning sleeve 10 is connected with locating piece 9 by screw thread, locating piece 9 is equipped with T-slot, T-shaped bar 12 is equipped with in T-slot, each T-shaped bar 12 is connected with respective claw 15 by screw 13, T-shaped bar 12 and claw 15 all compress with corresponding locating piece 9, three claws 15, circumferentially uniform and be positioned at the outside of positioning disk 7, are equipped with the plug 16 contacted with it inside each claw 15, clamp body 1 is associated with by screw thread the connecting rod 18 that is passed support plate 5 and elastic sheet 3, connecting rod 18 is fixedly connected with fixed head 19 by screw, positioning disk 7 is arranged in the endoporus of fixed head 19, the outside link 20 of three axis is through support plate 5, elastic sheet 3 and fixed head 19, the outside link 20 of support plate 5 both sides is equipped with thrust bearing 21, two thrust bearings 21 are respectively by the step of outside link 20 and locking nut 22 and packing ring location, skewed slot 23 is equipped with at the middle part of outside link 20, fixed head 19 is installed with the screw 24 that end is arranged in respective skewed slot 23, pressing plate 26 is all fixedly connected with in the front end of outside link 20, pressing plate 26 is all associated with hold-down bolt 27 by screw thread, the rear end of hold-down bolt 27 is provided with nut 28, hold-down bolt 27 between this nut 28 and pressing plate 26 overlaps and has Compress Spring 29,
Elastic sheet 3 of the present invention adopts spring steel material, can carry out elastic deformation within the specific limits, be in the state of inside contracting when nature in the middle part of it, and three claws 15 inwardly shrink, and are in clamp position, during use, pull bar 2 is connected with the hydraulic jack of lathe, driven forward pull bar 2, drive support plate 5 synchronously to move forward, make its bulge loop 5a, the front middle part pushing away elastic sheet 3 and inside contract, three claws 15 outwards strut, and bulge loop 5a can make the middle part of elastic sheet 3 evenly strut, and guarantee to put into workpiece 17, support plate 5 drives outside link 20 to move forward simultaneously, because screw 24 is fixed, screw 24 promotes outside link 20 by skewed slot 23 and outwards rotates simultaneously, now workpiece 17 can be put among three claws 15, and workpiece 17 rear end face is close to positioning disk 7, pull back pull bar 2 again, move after support plate 5 is synchronous, elastic sheet 3 recovers nature, the state of inside contracting is in the middle part of it, three claws 15 inwardly shrink, claw 15 compresses plug 16, located by plug 16 and adjacent two face, can clamping work pieces 17, move after support plate 5 drives outside link 20 simultaneously, screw 24 promotes outside link 20 by skewed slot 23 and inwardly rotates, hold-down bolt 27 is pressed on the front end face of workpiece 17, complete both ends of the surface location, the present invention is by pulling pull bar 2 holding workpiece 17, and clamping is convenient, efficiency is high, and transmission mechanism-free, weares and teares little, long service life, and can realize location, front and rear end, is located by plug 16 and adjacent two face, can automatic aligning, positioning precision high, Compress Spring 29 can apply pretightning force to hold-down bolt 27, prevents it from loosening, moves forward, guarantee workpiece pressing, by the radial position of T-shaped bar 12 adjustable claw 15, improve versatility.
Claims (5)
1. a high precision elastic clamping tool, comprise clamp body, slide through the pull bar in the middle part of clamp body, it is characterized in that the elastic sheet being provided with band annular sidewall in clamp body front, its annular sidewall and clamp body connect firmly, pull bar between clamp body and elastic sheet is installed with support plate, elastic sheet is provided with the resigning hole corresponding with back end of tie rod, the bulge loop be positioned at outside resigning hole is installed with at the front end face of support plate, clamp body is associated with the backstay that more than is passed support plate and elastic sheet, backstay is fixedly connected with positioning disk, elastic sheet outside positioning disk is provided with at three circumferentially uniform claws, clamp body is associated with the connecting rod that more than is passed support plate and elastic sheet, connecting rod is fixedly connected with fixed head, the outside link of more than one axis is through support plate, elastic sheet and fixed head, the outside link of support plate both sides is equipped with thrust bearing, skewed slot is equipped with at the middle part of outside link, fixed head is installed with the screw that end is arranged in respective skewed slot, is all associated with pressing plate in the front end of outside link, pressing plate is all associated with hold-down bolt by screw thread.
2. high precision elastic clamping tool as claimed in claim 1, it is characterized in that on rear side of elastic sheet, be provided with three briquettings, on front side of elastic sheet, correspondence is provided with three locating pieces, the more than one positioning sleeve through elastic sheet is provided with between briquetting and corresponding locating piece, the screw of more than one is connected with locating piece by screw thread through briquetting, positioning sleeve, locating piece is equipped with T-slot, is provided with T-shaped bar in T-slot, and described claw is connected with corresponding T-shaped bar by screw.
3. high precision elastic clamping tool as claimed in claim 1 or 2, is characterized in that inside each claw, be equipped with the plug contacted with it.
4. high precision elastic clamping tool as claimed in claim 3, is characterized in that the annular sidewall of clamp body and elastic sheet is by several screw attachment, and backstay and clamp body are by thread connection, and positioning disk and backstay pass through screw attachment; Connecting rod and clamp body pass through thread connection.
5. high precision elastic clamping tool as claimed in claim 4, is characterized in that the rear end of hold-down bolt is provided with nut, and on the hold-down bolt between this nut and pressing plate, cover has Compress Spring.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201410791714.9A CN104511664B (en) | 2014-12-19 | 2014-12-19 | High-accuracy elastic clamping tool |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201410791714.9A CN104511664B (en) | 2014-12-19 | 2014-12-19 | High-accuracy elastic clamping tool |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN104511664A true CN104511664A (en) | 2015-04-15 |
| CN104511664B CN104511664B (en) | 2017-02-22 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201410791714.9A Active CN104511664B (en) | 2014-12-19 | 2014-12-19 | High-accuracy elastic clamping tool |
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| CN (1) | CN104511664B (en) |
Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106270816A (en) * | 2016-08-31 | 2017-01-04 | 浙江台玖精密机械有限公司 | The flexibly positioned gear hobbing tooling of sheet type |
| CN106670967A (en) * | 2017-02-13 | 2017-05-17 | 李明科 | Fixing clamp for gear finish machining |
| CN107617915A (en) * | 2017-10-19 | 2018-01-23 | 洛阳华冠齿轮股份有限公司 | A kind of new rotatable compression quick change construction |
| CN112059909A (en) * | 2020-09-07 | 2020-12-11 | 内蒙古第一机械集团股份有限公司 | Grinding device for gear inner hole |
| CN112828798A (en) * | 2019-11-22 | 2021-05-25 | 中国航发商用航空发动机有限责任公司 | Positioning tool and clamping mechanism thereof |
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| US4316614A (en) * | 1980-01-07 | 1982-02-23 | Eaton Corporation | Holding chuck |
| CN201073739Y (en) * | 2007-09-28 | 2008-06-18 | 济南一机床集团有限公司 | Numerical control vertical lathe fixture |
| CN101508041A (en) * | 2008-12-26 | 2009-08-19 | 山东上汽汽车变速器有限公司 | Pitch circle clamp use technique |
| CN201848610U (en) * | 2010-11-18 | 2011-06-01 | 江阴嘉鑫风电轴承有限公司 | Clamp with milling tooth |
| CN102198583A (en) * | 2010-03-25 | 2011-09-28 | 上海航发机械有限公司 | Inner gear machining method and special gear shaping clamp |
| CN202804702U (en) * | 2012-09-07 | 2013-03-20 | 内江神舟机电设备有限公司 | Locating fixture for processing driven bevel gear |
| CN203471440U (en) * | 2013-08-09 | 2014-03-12 | 内江神舟机电设备有限公司 | External centering clamp |
| CN204486934U (en) * | 2014-12-19 | 2015-07-22 | 内江神舟机电设备有限公司 | High precision elastic clamping tool |
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2014
- 2014-12-19 CN CN201410791714.9A patent/CN104511664B/en active Active
Patent Citations (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US4316614A (en) * | 1980-01-07 | 1982-02-23 | Eaton Corporation | Holding chuck |
| CN201073739Y (en) * | 2007-09-28 | 2008-06-18 | 济南一机床集团有限公司 | Numerical control vertical lathe fixture |
| CN101508041A (en) * | 2008-12-26 | 2009-08-19 | 山东上汽汽车变速器有限公司 | Pitch circle clamp use technique |
| CN102198583A (en) * | 2010-03-25 | 2011-09-28 | 上海航发机械有限公司 | Inner gear machining method and special gear shaping clamp |
| CN201848610U (en) * | 2010-11-18 | 2011-06-01 | 江阴嘉鑫风电轴承有限公司 | Clamp with milling tooth |
| CN202804702U (en) * | 2012-09-07 | 2013-03-20 | 内江神舟机电设备有限公司 | Locating fixture for processing driven bevel gear |
| CN203471440U (en) * | 2013-08-09 | 2014-03-12 | 内江神舟机电设备有限公司 | External centering clamp |
| CN204486934U (en) * | 2014-12-19 | 2015-07-22 | 内江神舟机电设备有限公司 | High precision elastic clamping tool |
Cited By (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106270816A (en) * | 2016-08-31 | 2017-01-04 | 浙江台玖精密机械有限公司 | The flexibly positioned gear hobbing tooling of sheet type |
| CN106670967A (en) * | 2017-02-13 | 2017-05-17 | 李明科 | Fixing clamp for gear finish machining |
| CN106670967B (en) * | 2017-02-13 | 2018-07-31 | 盐城哈力动力传动及智能装备产业研究院有限公司 | A kind of gear finishing stationary fixture |
| CN107617915A (en) * | 2017-10-19 | 2018-01-23 | 洛阳华冠齿轮股份有限公司 | A kind of new rotatable compression quick change construction |
| CN112828798A (en) * | 2019-11-22 | 2021-05-25 | 中国航发商用航空发动机有限责任公司 | Positioning tool and clamping mechanism thereof |
| CN112828798B (en) * | 2019-11-22 | 2022-07-05 | 中国航发商用航空发动机有限责任公司 | Positioning tool |
| CN112059909A (en) * | 2020-09-07 | 2020-12-11 | 内蒙古第一机械集团股份有限公司 | Grinding device for gear inner hole |
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| Publication number | Publication date |
|---|---|
| CN104511664B (en) | 2017-02-22 |
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Effective date of registration: 20210917 Address after: 641000 Building 1, No. 788, Hanchen Road, economic development zone, Neijiang City, Sichuan Province Patentee after: SICHUAN SHENZHOU PRECISION TECHNOLOGY Co.,Ltd. Address before: Neijiang City, Sichuan province 641006 city music town Patentee before: NEIJIANG SHENZHOU MECHANICAL & ELECTRONIC EQUIPMENT Co.,Ltd. |