CN103990980B - A kind of self-centering clamping frock - Google Patents
A kind of self-centering clamping frock Download PDFInfo
- Publication number
- CN103990980B CN103990980B CN201410204015.XA CN201410204015A CN103990980B CN 103990980 B CN103990980 B CN 103990980B CN 201410204015 A CN201410204015 A CN 201410204015A CN 103990980 B CN103990980 B CN 103990980B
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- China
- Prior art keywords
- base plate
- workpiece
- wedge shape
- pushing block
- cavity
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Classifications
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B23—MACHINE TOOLS; METAL-WORKING NOT OTHERWISE PROVIDED FOR
- B23Q—DETAILS, COMPONENTS, OR ACCESSORIES FOR MACHINE TOOLS, e.g. ARRANGEMENTS FOR COPYING OR CONTROLLING; MACHINE TOOLS IN GENERAL CHARACTERISED BY THE CONSTRUCTION OF PARTICULAR DETAILS OR COMPONENTS; COMBINATIONS OR ASSOCIATIONS OF METAL-WORKING MACHINES, NOT DIRECTED TO A PARTICULAR RESULT
- B23Q3/00—Devices holding, supporting, or positioning work or tools, of a kind normally removable from the machine
- B23Q3/02—Devices holding, supporting, or positioning work or tools, of a kind normally removable from the machine for mounting on a work-table, tool-slide, or analogous part
- B23Q3/06—Work-clamping means
- B23Q3/062—Work-clamping means adapted for holding workpieces having a special form or being made from a special material
- B23Q3/065—Work-clamping means adapted for holding workpieces having a special form or being made from a special material for holding workpieces being specially deformable, e.g. made from thin-walled or elastic material
Abstract
The invention provides a kind of self-centering clamping frock, when processing thin, the Flexible Deforming Parts of wall, for the black skin needing location, when casting deformation maybe cannot reach size, use the type self-centering frock, can crudy be improved, reduce unnecessary loss due to spoiled work.It comprises base plate, described base plate is provided with workpiece to be positioned, the center of described workpiece to be positioned has cavity, it is characterized in that: the center that described base plate corresponds to cavity is provided with the wedge shape pushing block be arranged symmetrically with, spring is provided with between the opposing end surface of described wedge shape pushing block, the mutual of described wedge shape pushing block is furnished with symmetrical lozenges structure respectively away from end face, described lozenges structure is two ramp structures be arranged symmetrically with, the medial slope of the center bridge of the ramp structure difference corresponding laminating correspondence position of each described wedge shape pushing block, the lateral surface of the described center bridge under clamped condition is close to the inwall of described workpiece to be positioned, the lower surface evagination of described wedge shape pushing block has trundle.
Description
Technical field
The present invention relates to the technical field of structures of Workpiece fixing, be specially a kind of self-centering clamping frock.
Background technology
The clamping of existing location, inadequate to thin-walled, dimension control that is yielding and symmetrical component, easily cause that processing dimension is overproof, machining area is asymmetric, local produces distortion, or relative displacement of working position etc., finally cause part rejection, this Novel tooling can effectively solve the problem, and while Improving The Quality of Products, increases substantially working (machining) efficiency.
Summary of the invention
For existing above-mentioned defect, the invention provides a kind of self-centering clamping frock, when processing thin, the Flexible Deforming Parts of wall, for the black skin needing location, when casting deformation maybe cannot reach size, use the type self-centering frock, can crudy be improved, reduce unnecessary loss due to spoiled work.
A kind of self-centering clamping frock, its technical scheme is such: it comprises base plate, described base plate is provided with workpiece to be positioned, the center of described workpiece to be positioned has cavity, it is characterized in that: the center that described base plate corresponds to cavity is provided with the wedge shape pushing block be arranged symmetrically with, spring is provided with between the opposing end surface of described wedge shape pushing block, the mutual of described wedge shape pushing block is furnished with symmetrical lozenges structure respectively away from end face, described lozenges structure is two ramp structures be arranged symmetrically with, the medial slope of the center bridge of the ramp structure difference corresponding laminating correspondence position of each described wedge shape pushing block, the lateral surface of the described center bridge under clamped condition is close to the inwall of described workpiece to be positioned, the lower surface evagination of described wedge shape pushing block has trundle, described trundle is lower convex in guiding base plate after running through the straight-line groove of guiding base plate, described guiding base plate is anchored on the upper surface of described base plate, slurcam is provided with between the lower surface of described guiding base plate and described base plate, the middle part of described slurcam is provided with the guiding cavity that two ends are symmetrical inclined-plane, the inclined surface of described guiding cavity is close to the described trundle of corresponding end, the side of described slurcam is fastenedly connected with driving handle structure.
It is further characterized in that:
The corner of described workpiece to be positioned is supported on abutment sleeve respectively, described abutment sleeve is anchored on the upper surface of described base plate, pressing plate press-fits the upper surface in described workpiece to be positioned, and screw runs through pressing plate rear thread and connects and be positioned in the corresponding locating hole of described base plate;
The bottom protrusion correspondence of center bridge described in every block clamps the straight-line groove of the correspondence position of described guiding base plate;
The side that described base plate corresponds to described driving handle structure is provided with riser, the stud of described driving handle be threaded described riser straight-line guidance hole after be fastenedly connected the side of described slurcam, described guiding cavity is self-driven handle arrangement side to the structure of opposite side enlarging gradually;
The two ends that the two ends of described guiding base plate correspond to the cavity of described workpiece to be positioned are fastened with locating piece respectively, and the outer face of two pieces of locating pieces is close to the two ends inwall of the cavity of described workpiece to be positioned respectively; One end of described base plate is fastened with location, end riser, and the guide pillar of end position fixing handle runs through the end face towards described workpiece to be positioned after the riser of location, described end.
After adopting structure of the present invention, utilize the stretching, extension of spring, two wedge shape pushing blocks can from the translation of trend two ends, drive the center bridge of respective both sides to move laterally respectively simultaneously, be close to the inwall of workpiece to be positioned, thus reach the black skin symmetrical location up and down of workpiece to be positioned, when needs unload workpiece, turn driving handle structure, slurcam is moved, and make the inclined-plane of guiding cavity inwardly shrink two trundles by slurcam, two trundles shrink along straight-line groove centering, the outside of center bridge and workpiece is made to produce gap, thus taking-up workpiece, thin at processing wall, during Flexible Deforming Parts, for the black skin needing location, when casting deformation maybe cannot reach size, use the type self-centering frock, crudy can be improved, reduce unnecessary loss due to spoiled work.
Accompanying drawing explanation
Fig. 1 is front view schematic diagram of the present invention;
Fig. 2 is stereogram structural representation of the present invention;
Fig. 3 is the mounting structure schematic diagram of guiding base plate of the present invention, trundle, slurcam;
Fig. 4 is that the A-A of Fig. 3 cuts open structural representation.
Detailed description of the invention
A kind of self-centering clamping frock, see Fig. 1 ~ Fig. 4: it comprises base plate 1, base plate 1 is provided with workpiece 2 to be positioned, the center of workpiece 2 to be positioned has cavity, the center that base plate 1 corresponds to cavity is provided with the wedge shape pushing block 3 be arranged symmetrically with, spring 4 is provided with between the opposing end surface of wedge shape pushing block 3, the mutual of wedge shape pushing block 3 is furnished with symmetrical lozenges structure respectively away from end face, lozenges structure is two ramp structures be arranged symmetrically with, the medial slope of the center bridge 5 of the ramp structure difference corresponding laminating correspondence position of each wedge shape pushing block 3, the lateral surface of the center bridge 5 under clamped condition is close to the inwall of workpiece 2 to be positioned, the lower surface evagination of wedge shape pushing block 3 has trundle 6, trundle 6 is lower convex in guiding base plate 7 after running through the straight-line groove 8 of guiding base plate 7, the two ends of guiding base plate 7 are anchored on the upper surface of base plate 1, slurcam 9 is provided with between the lower surface, center of guiding base plate 7 and base plate 1, the middle part of slurcam 9 is provided with the guiding cavity 10 that two ends are symmetrical inclined-plane, the inclined surface of guiding cavity 10 is close to the trundle 6 of corresponding end, the side of slurcam 9 is fastenedly connected with driving handle 11.
The corner of workpiece 2 to be positioned is supported on abutment sleeve 12 respectively, and abutment sleeve 12 is anchored on the upper surface of base plate 1, and pressing plate 13 press-fits the upper surface in workpiece 2 to be positioned, and screw 14 runs through pressing plate 13 rear thread and connects and be positioned in the corresponding locating hole of base plate 1; Bottom protrusion 15 correspondence of every block center bridge 5 clamps the straight-line groove 16 of the correspondence position of guiding base plate 7; The side that base plate 1 corresponds to driving handle 11 is provided with riser 17, the stud 18 of driving handle 11 be threaded riser 17 straight-line guidance hole after be fastenedly connected the side of slurcam 9, guiding cavity 10 is self-driven handle 11 side to the structure of opposite side enlarging gradually; The two ends of cavity that the two ends of guiding base plate 7 correspond to workpiece 2 to be positioned are fastened with locating piece 19 respectively, the outer face of two pieces of locating pieces 19 is close to the two ends inwall of the cavity of workpiece 2 to be positioned respectively, one end of base plate 1 is fastened with location, end riser 20, and the guide pillar 22 of end position fixing handle 21 runs through the end face towards workpiece 2 to be positioned after the riser 20 of location, end.
Its operation principle is as follows:
Clamping workpiece to be positioned: the stretching, extension utilizing spring 4, two wedge shape pushing blocks can from the translation of trend two ends, drive four center bridges 5 that amount to of both sides to move laterally respectively simultaneously, thus reach blank symmetrical location up and down, rotary end position fixing handle 21 withstands workpiece to be positioned again, make the inwall of workpiece to be positioned near the outer face of the locating piece 19 of one end, wherein two pieces of locating pieces 19 are fixed on base plate 1, can not produce motion, the minimum dimension of crotch opened in blank by two pieces of locating pieces 19 each other spacing farthest; Tighten screw 14 afterwards, make pressing plate 13 compress workpiece to be positioned, workpiece 2 to be positioned is fixed.Open crotch straight flange close contact in frock and workpiece to be positioned 2, from inside to outside strut clamping, reduce blank local deformation, thus ensure the processing dimension of part.
Dismantle workpiece to be positioned: rotary screw 14, unclamp pressing plate 13; Rotary actuation handle 11, slurcam 9 is driven to move forward, make trundle 6 along the straight-line groove 8 on guiding base plate 7 to middle shrinkage, thus make wedge shape pushing block 3 overcome the power of spring 4 to middle shrinkage, make to produce gap between wedge shape pushing block 3 and center bridge 5, now center bridge 5 is by no longer producing the inner support thrust treating positioning workpieces 2, finally rocks workpiece 2 to be positioned gently and just can take out.
Claims (5)
1. a self-centering clamping frock, it comprises base plate, described base plate is provided with workpiece to be positioned, the center of described workpiece to be positioned has cavity, it is characterized in that: the center that described base plate corresponds to cavity is provided with the wedge shape pushing block be arranged symmetrically with, spring is provided with between the opposing end surface of described wedge shape pushing block, the mutual of described wedge shape pushing block is furnished with symmetrical lozenges structure respectively away from end face, described lozenges structure is two ramp structures be arranged symmetrically with, the medial slope of the center bridge of the ramp structure difference corresponding laminating correspondence position of each described wedge shape pushing block, the lateral surface of the described center bridge under clamped condition is close to the inwall of described workpiece to be positioned, the lower surface evagination of described wedge shape pushing block has trundle, described trundle is lower convex in guiding base plate after running through the straight-line groove of guiding base plate, described guiding base plate is anchored on the upper surface of described base plate, slurcam is provided with between the lower surface of described guiding base plate and described base plate, the middle part of described slurcam is provided with the guiding cavity that two ends are symmetrical inclined-plane, the inclined surface of described guiding cavity is close to the described trundle of corresponding end, the side of described slurcam is fastenedly connected with driving handle structure.
2. a kind of self-centering clamping frock according to claim 1, it is characterized in that: the corner of described workpiece to be positioned is supported on abutment sleeve respectively, described abutment sleeve is anchored on the upper surface of described base plate, pressing plate press-fits the upper surface in described workpiece to be positioned, and screw runs through pressing plate rear thread and connects and be positioned in the corresponding locating hole of described base plate.
3. a kind of self-centering clamping frock according to claim 1, is characterized in that: described in every block, the bottom protrusion correspondence of center bridge clamps the straight-line groove of the correspondence position of described guiding base plate.
4. a kind of self-centering clamping frock according to claim 1, it is characterized in that: the side that described base plate corresponds to described driving handle structure is provided with riser, the stud of described driving handle be threaded described riser straight-line guidance hole after be fastenedly connected the side of described slurcam, described guiding cavity is self-driven handle arrangement side to the structure of opposite side enlarging gradually.
5. a kind of self-centering clamping frock according to claim 1, it is characterized in that: the two ends that the two ends of described guiding base plate correspond to the cavity of described workpiece to be positioned are fastened with locating piece respectively, and the outer face of two pieces of locating pieces is close to the two ends inwall of the cavity of described workpiece to be positioned respectively; One end of described base plate is fastened with location, end riser, and the guide pillar of end position fixing handle runs through the end face towards described workpiece to be positioned after the riser of location, described end.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201410204015.XA CN103990980B (en) | 2014-05-15 | 2014-05-15 | A kind of self-centering clamping frock |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201410204015.XA CN103990980B (en) | 2014-05-15 | 2014-05-15 | A kind of self-centering clamping frock |
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| Publication Number | Publication Date |
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| CN103990980A CN103990980A (en) | 2014-08-20 |
| CN103990980B true CN103990980B (en) | 2016-04-13 |
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| CN201410204015.XA Active CN103990980B (en) | 2014-05-15 | 2014-05-15 | A kind of self-centering clamping frock |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110666577A (en) * | 2019-09-26 | 2020-01-10 | 西安北方光电科技防务有限公司 | Processing method for weight adjustment and calibration of high-precision weak-rigidity integral part |
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| CN105711083B (en) * | 2016-04-19 | 2017-10-31 | 常州星宇车灯股份有限公司 | For the retaining mechanism locked to automobile lamp |
| CN107283185A (en) * | 2017-06-27 | 2017-10-24 | 鹰普（中国）有限公司 | A kind of gearbox part self-centering fixture |
| CN108188787B (en) * | 2018-03-20 | 2023-07-21 | 强胜精密机械(苏州)有限公司 | Spring telescopic positioning clamp and clamping method |
| CN108406392B (en) * | 2018-05-30 | 2024-01-30 | 珠海格力智能装备有限公司 | Centering mechanism |
| CN110181430B (en) * | 2019-05-10 | 2023-09-26 | 宁波信泰机械有限公司 | Battery pack product tolerance uniform positioning and compressing mechanism |
| CN110091154A (en) * | 2019-05-22 | 2019-08-06 | 安徽博诚汽车部件有限公司 | Air braking system nylon quick connector assembles device |
Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| RU95106143A (en) * | 1995-04-19 | 1996-12-20 | Самарский государственный технический университет | Device for setting parts |
| CN200981162Y (en) * | 2006-08-22 | 2007-11-28 | 南通纵横国际股份有限公司 | Elliptical hole inner-expanding centering device |
| CN201309084Y (en) * | 2008-12-01 | 2009-09-16 | 北京二七轨道交通装备有限责任公司 | Bidirectional positioning and clamping device of cylinder body inner hole |
| CN203062323U (en) * | 2012-12-14 | 2013-07-17 | 重庆洋迪机电有限公司 | Wedge-type centring clamping device |
| CN203210219U (en) * | 2012-12-10 | 2013-09-25 | 重庆盾铭电磁阀有限公司 | Double-tapered-wedge clamping device |
| CN203900899U (en) * | 2014-05-15 | 2014-10-29 | 鹰普（中国）有限公司 | Self-centering clamping tool |
-
2014
- 2014-05-15 CN CN201410204015.XA patent/CN103990980B/en active Active
Patent Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| RU95106143A (en) * | 1995-04-19 | 1996-12-20 | Самарский государственный технический университет | Device for setting parts |
| CN200981162Y (en) * | 2006-08-22 | 2007-11-28 | 南通纵横国际股份有限公司 | Elliptical hole inner-expanding centering device |
| CN201309084Y (en) * | 2008-12-01 | 2009-09-16 | 北京二七轨道交通装备有限责任公司 | Bidirectional positioning and clamping device of cylinder body inner hole |
| CN203210219U (en) * | 2012-12-10 | 2013-09-25 | 重庆盾铭电磁阀有限公司 | Double-tapered-wedge clamping device |
| CN203062323U (en) * | 2012-12-14 | 2013-07-17 | 重庆洋迪机电有限公司 | Wedge-type centring clamping device |
| CN203900899U (en) * | 2014-05-15 | 2014-10-29 | 鹰普（中国）有限公司 | Self-centering clamping tool |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110666577A (en) * | 2019-09-26 | 2020-01-10 | 西安北方光电科技防务有限公司 | Processing method for weight adjustment and calibration of high-precision weak-rigidity integral part |
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|---|---|
| CN103990980A (en) | 2014-08-20 |
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