CN204396941U - A kind of chuck and movable jaw thereof - Google Patents
A kind of chuck and movable jaw thereof Download PDFInfo
- Publication number
- CN204396941U CN204396941U CN201420834339.7U CN201420834339U CN204396941U CN 204396941 U CN204396941 U CN 204396941U CN 201420834339 U CN201420834339 U CN 201420834339U CN 204396941 U CN204396941 U CN 204396941U
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- master
- dop
- jaw
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Abstract
The utility model discloses a kind of chuck and movable jaw thereof.The inner side of master jaw is provided with two or more spaced point of dop in the circumferential, the medial surface of each point of dop has the clamping part of the outer peripheral face simultaneously pushing up press contacts workpiece, in use, along with the center of each movable jaw to master body is moved, each point of dop on each movable jaw can contact simultaneously and be pressed on the outer peripheral face of workpiece, at least clamping to workpiece is realized by the mode contacted everywhere to make whole chuck, to increase the contact site of workpiece in clamped process between chuck and workpiece, make the force part of gripper chuck clamping of workpieces more even, thus decrease thin-wall workpiece and be clamped distortion in process, improve the machining accuracy that thin-wall workpiece adds man-hour.
Description
Technical field
The utility model relates to a kind of chuck and movable jaw thereof.
Background technology
Numerically controlled lathe is processed wall thickness when being less than the endoporus of the thin-wall sleeve parts of 10mm, because the wall thickness of workpiece is less, so carry out the words clamped with common chuck, three on the chuck modes by three point contact between movable jaw and the outer peripheral face of workpiece clamp, along with workpiece is by the continuous clamping of movable jaw on chuck, the position of movable jaw contact workpiece, by the outer peripheral face of extruding workpiece, causes workpiece to occur becoming the quality problems such as flat ovalisation, dimension overproof.Usually rely on two kinds of modes to eliminate chuck in prior art and clamp the deformation that thin-wall workpiece is brought, wherein a kind of is use special sleeve workpiece to clamp thin-wall workpiece, namely rely on the internal face of the outer peripheral face of sleeve workpiece and thin-wall workpiece to fit to realize radial location, then carry out compressing, to realize axial location from the end of thin-wall workpiece with sleeve workpiece; Another kind reserves grinding allowance after Vehicle Processing, to be refined on internal grinder by thin-wall workpiece clamping after Vehicle Processing, to recover the circularity of thin-wall workpiece endoporus again.But in both modes above-mentioned, front a kind of outer diameter tolerance that need ensure sleeve frock, makes the manufacture difficulty of frock and cost improve, also just makes the manufacturing cost of thin-wall workpiece increase; Rear one need increase by one grinding process after Vehicle Processing, adds manufacturing procedure and processing cost, and on internal grinder, also there is the hidden danger that thin-wall workpiece shrivels by fixture, and need operative employee to have higher operating experience, human factor is larger.
Utility model content
The purpose of this utility model is to provide and a kind ofly reduces the movable jaw that thin-wall workpiece is clamped the distortion in process, additionally provides a kind of chuck using this movable jaw simultaneously.
In order to realize above object, in the utility model, the technical scheme of movable jaw is as follows:
Movable jaw, comprise the master jaw on the claw guide part for being fixed on guiding movement assembling in master body radial direction, and the side towards master body center defining master jaw be inner side, the direction staggered with master body moving direction in master body circumference be circumference, the inner side of master jaw is provided with two or more spaced point of dop in the circumferential, and the medial surface of each point of dop has the outer peripheral face that simultaneously pushes up press contacts workpiece and by the clamping part of Workpiece clamping between each movable jaw.
Clamping part is the clamping concave surface be pressed on for the laminating of identical complementation on the outer peripheral face of workpiece.
The clamping concave surface of each point of dop is be in same circular arc concave surface circumferentially.
The circumferential both sides of master jaw are respectively equipped with the cantilever circumferentially overhang, and in each point of dop, at least two are divided into the projecting end of two cantilevers.
Two cantilevers are connected by the mid portion transition be assemblied on master jaw and formation curves inwardly from the middle to both ends or the fan of warpage, and fan is in outside the clamping part of each point of dop.
In the utility model, the technical scheme of chuck is as follows:
Chuck, comprise the movable jaw uniform around Center Gap of master body and upper assembling thereof, movable jaw has the master jaw on the claw guide part being fixed on guiding movement assembling in master body radial direction, and the side towards master body center defining master jaw be inner side, the direction staggered with master body moving direction in master body circumference be circumference, the inner side of master jaw is provided with two or more spaced point of dop in the circumferential, and the medial surface of each point of dop has the outer peripheral face that simultaneously pushes up press contacts workpiece and by the clamping part of Workpiece clamping between each movable jaw.
Clamping part is the clamping concave surface be pressed on for the laminating of identical complementation on the outer peripheral face of workpiece.
The clamping concave surface of each point of dop is be in same circular arc concave surface circumferentially.
The circumferential both sides of master jaw are respectively equipped with the cantilever circumferentially overhang, and in each point of dop, at least two are divided into the projecting end of two cantilevers.
Two cantilevers are connected by the mid portion transition be assemblied on master jaw and formation curves inwardly from the middle to both ends or the fan of warpage, and fan is in outside the clamping part of each point of dop.
In the utility model, the inner side of master jaw is provided with two or more spaced point of dop in the circumferential, the medial surface of each point of dop has the clamping part of the outer peripheral face simultaneously pushing up press contacts workpiece, in use, along with the center of each movable jaw to master body is moved, each point of dop on each movable jaw can contact simultaneously and be pressed on the outer peripheral face of workpiece, at least clamping to workpiece is realized by the mode contacted everywhere to make whole chuck, to increase the contact site of workpiece in clamped process between chuck and workpiece, make the force part of gripper chuck clamping of workpieces more even, thus decrease thin-wall workpiece and be clamped distortion in process, improve the machining accuracy that thin-wall workpiece adds man-hour.
Accompanying drawing explanation
Fig. 1 is the structural representation of the embodiment of chuck of the present utility model.
Detailed description of the invention
The embodiment of chuck in the utility model: as shown in Figure 1, this chuck is a kind of numerically controlled lathe numerical control chuck, primarily of master body 1 and on form around three movable jaws 2 that Center Gap is uniform, wherein master body 1 is provided with the claw guiding mechanism of drive three movable jaws 2 radially guiding movement, claw guiding mechanism connects each movable jaw 2 respectively by three claw guide parts, can move radially to make movable jaw 2 under the drive of claw guide part along master body 1.Movable jaw 2 by the master jaw 21 be fixed on claw guide part and on two points of dops 23 of being connected by fan form.The front side of master jaw 21 towards the center of master body 1, peripheral side and adjacent master jaw 21 arrange at the circumferential interval of master body 1, and on master jaw 21, offer two perforation arranged along master body 1 spaced radial, to be connected in by master jaw 21 on the claw guide part on master body 1 by securing member; The medial surface of master jaw 21 is the circular arc concave surface coaxial with master body 1, and on the medial surface of master jaw 21, is convexly equipped with block at the pedestal step of fan towards master body 1 side.Fan is the fanning strip 22 on the identical leading flank being welded on master jaw 21 be affixed, the interior plate face of this fanning strip 22 is also the circular arc concave surface coaxial with master body 1, the interior plate face of fanning strip 22 is convexly equipped with the support step at the edge, side be near master body 1, to make the end face of whole fanning strip 22 for L shape step surface, and form the installation seam be in away from master body 1 side in the inner side of fanning strip 22; The two ends of fanning strip 22 are stretched out from the circumferential both sides of master jaw 21 and form the cantilever overhang in the circumferential both sides of master jaw 21, the inner side of the projecting end of two cantilevers is welded with the mid portion transition be fixed by welding on the medial surface of master jaw 21 of a point of dop 23, two cantilever respectively and connects and form aduncate fanning strip 22 gradually from the middle to both ends.Point dop 23 be weldingly fixed on fanning strip 22 medial surface in installing the L shape block in seam, point dop 23 towards the side, side of master body 1 by block on the support step of fanning strip 22, the lateral surface of point dop 23 coincide be affixed be welded on the medial surface of fanning strip 22 be in the part of installing beyond seam, the medial surface dividing dop 23 is also the circular arc concave surface coaxial with master body 1, and be convexly equipped with for the dop step of block on workpiece end face in the side near master body 1 on the medial surface of point dop 23, this dop step exposes from the inner side of the support step of fanning strip 22 and radial direction along master body 1 overhangs.
The present embodiment adds a fanning strip 22 and installed again two points of dops 23 additional on each fanning strip 22 on each master jaw 21, to increase lifting surface area when workpiece is clamped on chuck, by the Deformation control of workpiece in minimum zone, ensure the clamping carrying out workpiece in the drawing requirement margin of tolerance.
In the above-described embodiments, each point of dop is fixed on master jaw by fan, in other embodiments, dop is divided also can be directly fixed on master jaw, and the quantity of point dop also can more than two on each movable jaw, the medial surface of each point of corresponding dop should remain on circumferentially same.
In the above-described embodiments, be all connected by the mode of welding between fan and master jaw and point between dop and fan, the modes such as in other embodiments, the mode be welded and fixed also can connect with bolt, riveted joint are replaced.In addition, between fan and master jaw and point also can be connected by hinged mode between dop and fan, clamping position in such activity card column can adapt to according to the outer peripheral face different curvature automatic swing of different workpieces.
The embodiment of movable jaw in the utility model: in the present embodiment, the structure of movable jaw is identical with the structure of movable jaw in above-described embodiment, therefore repeats no more.
Claims (10)
1. movable jaw, comprise the master jaw on the claw guide part for being fixed on guiding movement assembling in master body radial direction, and the side towards master body center defining master jaw be inner side, the direction staggered with master body moving direction in master body circumference be circumference, it is characterized in that, the inner side of master jaw is provided with two or more spaced point of dop in the circumferential, and the medial surface of each point of dop has the outer peripheral face that simultaneously pushes up press contacts workpiece and by the clamping part of Workpiece clamping between each movable jaw.
2. movable jaw according to claim 1, is characterized in that, clamping part is the clamping concave surface be pressed on for the laminating of identical complementation on the outer peripheral face of workpiece.
3. movable jaw according to claim 2, is characterized in that, the clamping concave surface of each point of dop is be in same circular arc concave surface circumferentially.
4. the movable jaw according to claim 1 or 2 or 3, is characterized in that, the circumferential both sides of master jaw are respectively equipped with the cantilever circumferentially overhang, and in each point of dop, at least two are divided into the projecting end of two cantilevers.
5. movable jaw according to claim 4, it is characterized in that, two cantilevers are connected by the mid portion transition be assemblied on master jaw and formation curves inwardly from the middle to both ends or the fan of warpage, and fan is in outside the clamping part of each point of dop.
6. chuck, comprise the movable jaw uniform around Center Gap of master body and upper assembling thereof, movable jaw has the master jaw on the claw guide part being fixed on guiding movement assembling in master body radial direction, and the side towards master body center defining master jaw is inner side, the direction staggered with master body moving direction in master body circumference is circumference, it is characterized in that, the inner side of master jaw is provided with two or more spaced point of dop in the circumferential, the medial surface of each point of dop has the outer peripheral face that simultaneously pushes up press contacts workpiece and by the clamping part of Workpiece clamping between each movable jaw.
7. chuck according to claim 6, is characterized in that, clamping part is the clamping concave surface be pressed on for the laminating of identical complementation on the outer peripheral face of workpiece.
8. chuck according to claim 7, is characterized in that, the clamping concave surface of each point of dop is be in same circular arc concave surface circumferentially.
9. the chuck according to claim 6 or 7 or 8, is characterized in that, the circumferential both sides of master jaw are respectively equipped with the cantilever circumferentially overhang, and in each point of dop, at least two are divided into the projecting end of two cantilevers.
10. chuck according to claim 9, is characterized in that, two cantilevers are connected by the mid portion transition be assemblied on master jaw and formation curves inwardly from the middle to both ends or the fan of warpage, and fan is in outside the clamping part of each point of dop.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201420834339.7U CN204396941U (en) | 2014-12-25 | 2014-12-25 | A kind of chuck and movable jaw thereof |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201420834339.7U CN204396941U (en) | 2014-12-25 | 2014-12-25 | A kind of chuck and movable jaw thereof |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN204396941U true CN204396941U (en) | 2015-06-17 |
Family
ID=53420839
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201420834339.7U Expired - Fee Related CN204396941U (en) | 2014-12-25 | 2014-12-25 | A kind of chuck and movable jaw thereof |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN204396941U (en) |
Cited By (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105234443A (en) * | 2015-11-03 | 2016-01-13 | 吉林博仁科技股份有限公司 | Workpiece clamping device with elastic sheet positioning reference |
| CN105689747A (en) * | 2016-03-28 | 2016-06-22 | 济南大学 | Cambered surface jaw clamp |
| CN106392688A (en) * | 2016-11-09 | 2017-02-15 | 江苏新银叶传动机电有限公司 | Numerical control turning thin-walled ring clamping device |
| CN107116241A (en) * | 2017-06-16 | 2017-09-01 | 河南中原吉凯恩气缸套有限公司 | Cylinder jacket scroll chuck fixture |
| CN108044206A (en) * | 2017-12-17 | 2018-05-18 | 泰州市伟业机械制造有限公司 | A kind of cold-extruded gear finishing clamping device |
| CN108723410A (en) * | 2018-06-28 | 2018-11-02 | 浙江万里扬股份有限公司 | Fixture |
| CN109332735A (en) * | 2018-11-27 | 2019-02-15 | 瓦房店轴承集团国家轴承工程技术研究中心有限公司 | Chuck assisted conditioning apparatus |
| CN109623953A (en) * | 2018-11-28 | 2019-04-16 | 太湖县木子峰农业发展有限公司 | A kind of adaptive forest cutting equipment |
-
2014
- 2014-12-25 CN CN201420834339.7U patent/CN204396941U/en not_active Expired - Fee Related
Cited By (10)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105234443A (en) * | 2015-11-03 | 2016-01-13 | 吉林博仁科技股份有限公司 | Workpiece clamping device with elastic sheet positioning reference |
| CN105234443B (en) * | 2015-11-03 | 2017-09-15 | 吉林博仁科技股份有限公司 | A kind of Workpiece clamping device with shell fragment positioning datum |
| CN105689747A (en) * | 2016-03-28 | 2016-06-22 | 济南大学 | Cambered surface jaw clamp |
| CN106392688A (en) * | 2016-11-09 | 2017-02-15 | 江苏新银叶传动机电有限公司 | Numerical control turning thin-walled ring clamping device |
| CN107116241A (en) * | 2017-06-16 | 2017-09-01 | 河南中原吉凯恩气缸套有限公司 | Cylinder jacket scroll chuck fixture |
| CN108044206A (en) * | 2017-12-17 | 2018-05-18 | 泰州市伟业机械制造有限公司 | A kind of cold-extruded gear finishing clamping device |
| CN108723410A (en) * | 2018-06-28 | 2018-11-02 | 浙江万里扬股份有限公司 | Fixture |
| CN109332735A (en) * | 2018-11-27 | 2019-02-15 | 瓦房店轴承集团国家轴承工程技术研究中心有限公司 | Chuck assisted conditioning apparatus |
| CN109623953A (en) * | 2018-11-28 | 2019-04-16 | 太湖县木子峰农业发展有限公司 | A kind of adaptive forest cutting equipment |
| CN109623953B (en) * | 2018-11-28 | 2021-07-09 | 太湖县木子峰农业发展有限公司 | Self-adaptation forest cutting equipment |
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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: 20150617 Termination date: 20161225 |
|
| CF01 | Termination of patent right due to non-payment of annual fee |