CN205008608U - Prevent elastic claw of centre gripping deformation - Google Patents
Prevent elastic claw of centre gripping deformation Download PDFInfo
- Publication number
- CN205008608U CN205008608U CN201520730179.6U CN201520730179U CN205008608U CN 205008608 U CN205008608 U CN 205008608U CN 201520730179 U CN201520730179 U CN 201520730179U CN 205008608 U CN205008608 U CN 205008608U
- Authority
- CN
- China
- Prior art keywords
- arc
- spherical
- claw
- elastic part
- section
- 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
Abstract
The utility model provides a prevent elastic claw of centre gripping deformation, including the jack catch base, arc jack catch piece, flexible dop of activity and elasticity part, be provided with a plurality of spherical pits and elasticity part mounting groove on the arc medial surface of jack catch base, be equipped with on arc jack catch piece with the corresponding connect the via hole of spherical pit position size, arc jack catch piece and jack catch base fixed connection, the flexible dop of activity comprises sphere location section and flexible section, flexible section sets up the aspheric surface end of fixing a position the section in the sphere, the top spheroid of spherical location section is installed in spherical pit, be clearance fit between the two, flexible section suit is in connect the via hole, elasticity part fixed mounting is in elasticity part mounting groove. Using this prevent elastic claw of centre gripping deformation, avoiding waiting to process workpiece surface centre gripping elastic deformation, do not exist and lead to big machining error because of the centre gripping warp, machining error is less than 0.01mm, can reach the precision finishing requirement.
Description
Technical field:
The utility model relates to a kind of processing tool, particularly relates to a kind of elastic card claw preventing from clamping Precision Machining workpiece deformation.
Background technology:
At present, light-wall pipe part is carrying out in precision turning processing or accurate grinding process, its installation way generally adopts clamping with three-jaw chuck, the claw of existing scroll chuck is generally hard pawl, the clamping face of claw is generally arc surface, the conical surface and special shape, usually case hardness is improved by quenching, the body outer round surface clamped due to hard pawl can not be the arc surface of desirable rule, therefore or Multi-contact on claw face is in fact only had at 2 when clamping workpiece to be processed, it not face contact, stress point is few, and each stress point discontinuity, easily cause the clamping elastic deformation of workpiece to be processed surface, elastic recovery is there is again after completing processing, exist because clamping distortion causes mismachining tolerance 0.05mm ~ 0.3mm, for Precision Machining part, dimension precision requirement is generally 0.01mm, the mismachining tolerance that above-mentioned elastic deformation causes is fatal often.
The claw that someone uses quenchless steel or copper aluminium to make, be commonly called as soft pawl, it can alleviate the clamping impression problem of claw to pipe light-wall pipe surface, but the clamping problem on deformation of body still cannot solve, because the tube wall contact surface of soft pawl and body to be processed is not changed, stressed still very large at bite, the compressive deformation treating processing body does not still improve, body still exists because pressurized produces the plastic deformation problem of not replying after Precision Machining, directly affects the machining accuracy of body.
Utility model content:
The purpose of this utility model is to provide a kind of elastic card claw of anti-clamping distortion, its clamping is efficient and convenient, positioning precision is high, effectively can prevent the clamping distortion that in precision machining processes, claw causes holding workpiece, can meet precision turning processing or accurate grinding processing and loading clamp needs.
The technical scheme that the utility model is taked is as follows:
A kind of elastic card claw of anti-clamping distortion, it is characterized in that: comprise claw pedestal, arc-shaped claws sheet, mobile flexible dop and elastic part, the arc shaped inside face of claw pedestal is provided with some spherical pits, the sphere top of spherical pit is provided with elastic part mounting groove, the outer wall arcwall face of arc-shaped claws sheet is corresponding with the arc shaped inside face of claw pedestal, arc-shaped claws sheet is provided with the connecting through hole corresponding with spherical pit, arc-shaped claws sheet is fixedly connected with claw pedestal, connecting through hole to offer position corresponding with the position of spherical pit, the openend diameter of spherical pit is greater than the aperture of connecting through hole, mobile flexible dop is made up of spherical positioning section and telescopic section, telescopic section is arranged on the aspheric surface end of spherical positioning section, the exposed junction of telescopic section is sphere, the top of spherical positioning section is spheroid, the top sphere installation of spherical positioning section is in spherical pit, be matched in clearance between the two, telescopic section is sleeved in connecting through hole, elastic part is fixedly mounted in elastic part mounting groove, elastic part length is in a free state greater than the degree of depth of elastic part mounting groove, the tip contact of the spherical positioning section of elastic part one end and mobile flexible dop, telescopic section in a compressed state exposed junction protrudes the inner side arcwall face of arc-shaped claws sheet.
Further, in a compressed state, the height that its exposed junction protrudes the inner side arcwall face of arc-shaped claws sheet is 3 ~ 20 millimeters to telescopic section.
Further, described elastic part is spring.
Further, the arc shaped inside face of claw pedestal is circumferentially provided with seven row's spherical pits equably, the central axis of spherical pit arcuately medial surface is symmetrical.
Further, the cross sectional shape of described connecting through hole and the cross sectional shape of telescopic section corresponding.
Further, the cross sectional shape of connecting through hole is rectangle or trapezoidal.
Further, described arc-shaped claws sheet is screwed and is arranged on claw pedestal.
The using method of the elastic card claw of anti-clamping distortion described in the utility model is as follows:
The utility model is arranged on scroll chuck, the exposed junction of mobile flexible dop is contacted with body to be processed, tighten up scroll chuck according to a conventional method, three pieces of elastic card claws are made to clamp body cylindrical to be processed, in clamping process, elastic part is in elastical retraction state, mobile flexible dop compresses to the direction of claw pedestal, the telescopic section of mobile flexible dop can move after pressurized and be out of shape in through hole, the exposed junction of mobile flexible dop with treat the external round belt of processing tube and press soft contact, the inner side arcwall face of arc-shaped claws sheet does not contact with body outer round surface to be processed, even if there is micro-rough defect in outer surface of tube body, due to every block elastic card claw being contacted with the cylindrical of body to be added by several mobile flexible dops, the pressure of every bit is less, therefore both any clamping vestige can not be left in processing tube surface, also the clamping deflection of body to be processed can significantly be reduced, tube wall more can not be caused to produce the plastic deformation being difficult to recovery, so just the deficiencies in the prior art can be overcome, when after body process finishing, unclamp scroll chuck, mobile flexible dop is separated with body to be processed gradually, elastic part then freely stretches automatically, mobile flexible dop affranchises state.
Owing to using the elastic card claw of anti-clamping distortion described in the utility model, mobile flexible dop is used to clamp body to be processed, because leave gap between the top of the spherical segment of mobile flexible dop and the arc surface of spherical pit, the length that the length of telescopic section deducts through hole is more than or equal to the gap between spherical segment top to spherical pit arc surface, elastic part is fixedly mounted in elastic part mounting groove, length under elastic part free state is greater than the length of elastic part mounting groove, the tip contact of the spherical segment of bottom and mobile flexible dop under elastic part free state, telescopic section can move up and down in connecting through hole, therefore fully contact with workpiece to be processed when clamping, stress surface is large, part each point uniform force, avoid the clamping elastic deformation of workpiece to be processed surface, do not exist because clamping distortion causes large mismachining tolerance, mismachining tolerance is less than 0.01mm, Precision Machining requirement can be reached.Exposed junction bottom telescopic section is circular arc, and namely the shape of exposed junction and work piece interface to be held is circular arc, avoids because mobile flexible dop has corner angle to contact to produce with workpiece to be processed and be out of shape.
Accompanying drawing illustrates:
Fig. 1 is structural representation of the present utility model;
Fig. 2 is the structural representation of claw pedestal;
Fig. 3 is the structural representation of arc-shaped claws sheet;
Fig. 4 is the structural representation of mobile flexible dop;
Fig. 5 is using state schematic diagram of the present utility model;
In figure: 1-claw pedestal; 2-arc-shaped claws sheet; 3-mobile flexible dop; 4-elastic part; 11-arc shaped inside face; 12-spherical pit; 13-elastic part mounting groove; 21-outer wall arcwall face; 22-connecting through hole; Arcwall face inside 23-; The spherical positioning section of 31-; 32-telescopic section; 33-aspheric surface end; 34-exposed junction.
Detailed description of the invention:
Below in conjunction with accompanying drawing, the technical solution of the utility model is clearly and completely described.
A kind of elastic card claw of anti-clamping distortion, as shown in Fig. 1 ~ Fig. 5, comprise claw pedestal 1, arc-shaped claws sheet 2, mobile flexible dop 3 and elastic part 4, the arc shaped inside face 11 of claw pedestal 1 is circumferentially provided with seven row's spherical pits 12 equably, the central axis of spherical pit 12 arcuately medial surface 11 is symmetrical, the sphere top of spherical pit 12 is provided with elastic part mounting groove 13, the outer wall arcwall face 21 of arc-shaped claws sheet 2 is corresponding with the arc shaped inside face 11 of claw pedestal 1, arc-shaped claws sheet 2 is provided with the trapezoidal connecting through hole 22 corresponding with spherical pit 12, arc-shaped claws sheet 2 is fixedly mounted on claw pedestal 1 by screw 5, connecting through hole 22 to offer position corresponding with the position of spherical pit 12, the openend diameter of spherical pit 12 is greater than the aperture of connecting through hole 22, mobile flexible dop 3 is made up of spherical positioning section 31 and telescopic section 32, telescopic section 32 is arranged on the aspheric surface end 33 of spherical positioning section 31, the exposed junction 34 of telescopic section 32 is sphere, the top of spherical positioning section 31 is spheroid, the top sphere installation of spherical positioning section 31 is in spherical pit 12, be matched in clearance between the two, the cross sectional shape of telescopic section 32 is corresponding with the cross sectional shape of connecting through hole 22, telescopic section 32 is sleeved in connecting through hole 22, elastic part 4 is fixedly mounted in elastic part mounting groove 13, elastic part 4 length is in a free state greater than the degree of depth of elastic part mounting groove 13, the tip contact of the spherical positioning section 31 of elastic part 4 one end and mobile flexible dop 3, telescopic section 32 in a compressed state, the height that its exposed junction 34 protrudes the inner side arcwall face 23 of arc-shaped claws sheet 2 is 10 millimeters, described elastic part 4 is spring.
The elastic card claw embodiment of anti-clamping distortion described in the utility model is not limited to example, also has the function replacing structures such as a lot, as long as adopt all technical schemes of technical thought of the present utility model all to belong to protection domain of the present utility model.
Claims (7)
1. the elastic card claw of an anti-clamping distortion, it is characterized in that: comprise claw pedestal (1), arc-shaped claws sheet (2), mobile flexible dop (3) and elastic part (4), the arc shaped inside face (11) of claw pedestal (1) is provided with some spherical pits (12), the sphere top of spherical pit (12) is provided with elastic part mounting groove (13), the outer wall arcwall face (21) of arc-shaped claws sheet (2) is corresponding with the arc shaped inside face (11) of claw pedestal (1), arc-shaped claws sheet (2) is provided with the connecting through hole (22) corresponding with spherical pit (12), arc-shaped claws sheet (2) is fixedly connected with claw pedestal (1), connecting through hole (22) to offer position corresponding with the position of spherical pit (12), the openend diameter of spherical pit (12) is greater than the aperture of connecting through hole (22), mobile flexible dop (3) is made up of spherical positioning section (31) and telescopic section (32), telescopic section (32) is arranged on the aspheric surface end (33) of spherical positioning section (31), the exposed junction (34) of telescopic section (32) is sphere, the top of spherical positioning section (31) is spheroid, the top sphere installation of spherical positioning section (31) is in spherical pit (12), be matched in clearance between the two, telescopic section (32) is sleeved in connecting through hole (22), elastic part (4) is fixedly mounted in elastic part mounting groove (13), elastic part (4) length is in a free state greater than the degree of depth of elastic part mounting groove (13), the tip contact of the spherical positioning section (31) of elastic part (4) one end and mobile flexible dop (3), telescopic section (32) in a compressed state exposed junction (34) protrudes the inner side arcwall face (23) of arc-shaped claws sheet (2).
2. the elastic card claw of anti-clamping distortion according to claim 1, it is characterized in that: in a compressed state, the height that its exposed junction (34) protrudes the inner side arcwall face (23) of arc-shaped claws sheet (2) is 3 ~ 20 millimeters to telescopic section (32).
3. the elastic card claw of anti-clamping distortion according to claim 1, is characterized in that: described elastic part (4) is spring.
4. the elastic card claw of anti-clamping distortion according to claim 1, it is characterized in that: on the arc shaped inside face (11) of claw pedestal (1), be circumferentially provided with seven row's spherical pits (12) equably, the central axis of spherical pit (12) arcuately medial surface (11) is symmetrical.
5. the elastic card claw of anti-clamping distortion according to claim 1, is characterized in that: the cross sectional shape of described connecting through hole (22) is corresponding with the cross sectional shape of telescopic section (32).
6. the elastic card claw of anti-clamping distortion according to claim 5, is characterized in that: the cross sectional shape of connecting through hole (22) is rectangle or trapezoidal.
7. the elastic card claw of anti-clamping distortion according to claim 1, is characterized in that: described arc-shaped claws sheet (2) is fixedly mounted on claw pedestal (1) by screw (5).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201520730179.6U CN205008608U (en) | 2015-09-18 | 2015-09-18 | Prevent elastic claw of centre gripping deformation |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201520730179.6U CN205008608U (en) | 2015-09-18 | 2015-09-18 | Prevent elastic claw of centre gripping deformation |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN205008608U true CN205008608U (en) | 2016-02-03 |
Family
ID=55207236
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201520730179.6U Expired - Fee Related CN205008608U (en) | 2015-09-18 | 2015-09-18 | Prevent elastic claw of centre gripping deformation |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN205008608U (en) |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105081384A (en) * | 2015-09-18 | 2015-11-25 | 江苏常宝普莱森钢管有限公司 | Anti-clamping-deformation elastic clamping jaw |
| CN107755723A (en) * | 2017-11-07 | 2018-03-06 | 金华职业技术学院 | A kind of strength chuck |
| US10821575B2 (en) | 2018-05-01 | 2020-11-03 | Unison Industries, Llc | Clamp assembly and method |
-
2015
- 2015-09-18 CN CN201520730179.6U patent/CN205008608U/en not_active Expired - Fee Related
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105081384A (en) * | 2015-09-18 | 2015-11-25 | 江苏常宝普莱森钢管有限公司 | Anti-clamping-deformation elastic clamping jaw |
| CN107755723A (en) * | 2017-11-07 | 2018-03-06 | 金华职业技术学院 | A kind of strength chuck |
| US10821575B2 (en) | 2018-05-01 | 2020-11-03 | Unison Industries, Llc | Clamp assembly and method |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN105081384A (en) | Anti-clamping-deformation elastic clamping jaw | |
| CN205008608U (en) | Prevent elastic claw of centre gripping deformation | |
| CN203330536U (en) | Elastic gear shaving clamp | |
| CN104440166A (en) | Machining fixture | |
| CN204471027U (en) | Large-scale sheet member milling Combined adjustable fixture | |
| CN105904245A (en) | Jig for annular work piece | |
| CN203751769U (en) | Machine tool clamp special for shock absorption | |
| CN210172570U (en) | Three-jaw chuck | |
| CN103567859B (en) | Star ring type multi-hole position expansion clamping device | |
| CN202622366U (en) | Clamp for machining ball head | |
| CN204584313U (en) | A kind of bearing fixture | |
| CN201483361U (en) | Novel elastic sleeve centering and clamping mechanism | |
| CN206936411U (en) | A kind of shaft coupling processing scroll chuck | |
| CN205201078U (en) | Machining anchor clamps of cotter way are stored up in area | |
| CN205414452U (en) | Brake disc adds clamping apparatus | |
| CN216066524U (en) | Rotary hydraulic tool for machining thin-walled workpiece | |
| CN220240675U (en) | Device applied to processing of aluminum alloy thin-wall parts | |
| CN203751734U (en) | Efficient damping general machine tool clamp | |
| CN210499788U (en) | Workpiece positioning tool for machining crankshaft of military naval vessel on crankshaft grinding machine | |
| CN103537940A (en) | Clamp used for machining of needle bar of sewing machine | |
| CN203853572U (en) | Vibration damping machine tool fixing clamp with movable clamping jaws | |
| CN214134920U (en) | Anchor clamps that commonality is high | |
| CN219561673U (en) | Gear shaping fixture capable of being used for angular positioning | |
| CN210877572U (en) | Shaft neck turning device | |
| CN218926272U (en) | Chuck corrector |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20160203 Termination date: 20210918 |
|
| CF01 | Termination of patent right due to non-payment of annual fee |