CN216881777U

CN216881777U - Floating chuck

Info

Publication number: CN216881777U
Application number: CN202220339364.2U
Authority: CN
Inventors: 宋春燕
Original assignee: Zhejiang Zhenhuan Cnc Machine Ltd By Share Ltd
Current assignee: Zhejiang Zhenhuan Cnc Machine Ltd By Share Ltd
Priority date: 2022-02-18
Filing date: 2022-02-18
Publication date: 2022-07-05
Anticipated expiration: 2032-02-18

Abstract

The application relates to a floating chuck, which comprises a chuck body, wherein the chuck body is provided with a plurality of movable clamping jaws, each movable clamping jaw is rotatably connected with a floating clamping jaw, the rotating axis of each floating clamping jaw is parallel to the axial lead of the chuck body, and each floating clamping jaw is limited to swing only in a specific amplitude range around the rotating axis of the floating clamping jaw; the end face of the floating clamping jaw, which faces to the direction of the axis of the chuck body, is used for clamping a workpiece. Through setting up the jack catch that floats, the jack catch that floats can be in specific range around the axis of rotation swing, carries out the conflict of certain degree to anomalous work piece surface, and the jack catch that floats can carry out the compensation of stepping down of certain degree through the swing of small amplitude to the arch of work piece surface for the surface of anomalous work piece can be greater degree and float the jack catch and contact, improve the even degree of anomalous work piece surface atress, and is better to the stability of anomalous work piece centre gripping, and then improves the yields of work piece processing.

Description

Floating chuck

Technical Field

The present application relates to the field of chucks and, more particularly, to a floating chuck.

Background

In the existing metal cutting processing, a three-jaw chuck is often used for clamping or loosening a metal workpiece, so that the metal workpiece is convenient to cut. However, the existing workpiece blanks are not completely regular circles, and when the three-jaw chuck clamps the workpiece blanks of the type, acting force applied to the surfaces of the workpiece blanks is not uniform enough, so that the yield of workpiece processing is low and needs to be improved.

SUMMERY OF THE UTILITY MODEL

In order to improve the yields of work piece processing, this application provides a floating chuck.

The application provides a floating chuck adopts following technical scheme:

a floating chuck comprises a chuck body, wherein the chuck body is provided with a plurality of movable clamping jaws, each movable clamping jaw is rotatably connected with a floating clamping jaw, the rotating axis of each floating clamping jaw is parallel to the axial lead of the chuck body, and each floating clamping jaw is limited to swing only in a specific amplitude range around the rotating axis of the floating clamping jaw;

the end face of the floating clamping jaw, which faces to the direction of the axis of the chuck body, is used for clamping a workpiece.

Through the technical scheme, the floating clamping jaw is arranged, the floating clamping jaw can swing around the rotation axis within a specific range to conflict with the surface of an irregular workpiece to a certain degree, the floating clamping jaw can perform abdication compensation to the bulge of the surface of the workpiece to a certain degree through small-amplitude swing, so that the surface of the irregular workpiece can be in contact with the floating clamping jaw to a greater degree, the uniformity of the stress of the surface of the irregular workpiece is improved, the stability of clamping the irregular workpiece is better, and the yield of workpiece processing is further improved.

Optionally, it includes slip portion and supporting seat to remove the jack catch, slip portion slides and connects in the chuck body, the supporting seat is located the one end that the portion of sliding deviates from the chuck body, the supporting seat is equipped with towards the terminal surface of chuck body axial lead and is used for supplying the wobbling groove of stepping down of floating jack catch, the supporting seat is equipped with the hinge bar, floating jack catch and hinge bar fixed connection.

Through the technical scheme, the abdicating groove is arranged, the groove wall of the abdicating groove, which is far away from the axis, can limit the swing amplitude range of the floating clamping jaw, and can provide supporting force for the floating clamping jaw, so that the workpiece can be clamped more stably, and the stability of clamping the workpiece is improved.

Optionally, each end face, facing the axial lead of the chuck body, of each floating clamping jaw is provided with a first abutting face and two floating abutting faces, the first abutting face is located in the middle section of the floating clamping jaw, and the two floating abutting faces are located at two ends of the floating clamping jaw;

the distance from each floating abutting surface to the axial lead of the chuck body is larger than the distance from each first abutting surface to the axial lead of the chuck body.

Through above-mentioned technical scheme, set up first butt face and unsteady butt face, first butt face can be used for the less position of the irregular workpiece surface external diameter of butt, and unsteady butt face can be used for the great position of the irregular workpiece surface external diameter of butt for a plurality of positions of workpiece surface all can obtain the butt, thereby make workpiece surface atress can be more even, and then improve the yields of work piece processing.

Optionally, two transition abutting surfaces are arranged on the end surface, facing the axial lead of the chuck body, of each floating jaw, the two transition abutting surfaces are respectively located between the two floating abutting surfaces of the same floating jaw, and the two transition abutting surfaces are respectively located at two ends of the first abutting surface of the same floating jaw;

the distance from each transition abutting surface to the axial lead of the chuck body is larger than the distance from each floating abutting surface to the axial lead of the chuck body.

Through above-mentioned technical scheme, set up transition butt face, transition butt face can supply the bigger position butt of irregular workpiece surface external diameter, increases the butt position of irregular workpiece surface for workpiece surface's atress is more even, and the stability of centre gripping is better.

Optionally, each floating abutting surface is provided with anti-slip lines.

Through above-mentioned technical scheme, set up anti-skidding line, reduce irregular workpiece surface by the clamping in-process and the relative slip between the jack catch that floats, improve the jack catch that floats and to the clamping stability of irregular workpiece.

Optionally, each floating abutting surface is provided with a through groove, and the through groove penetrates through the floating clamping jaw along the radial direction of the clamping chuck body towards the direction far away from the axial lead of the clamping chuck body;

the anti-skidding block penetrates through the through groove, one end, facing the axial lead of the chuck body, of the anti-skidding block protrudes out of the floating butt joint face, and the anti-skidding threads are arranged at one end, facing the axial lead of the chuck body, of the anti-skidding block.

Through above-mentioned technical scheme, set up anti-skidding line and set up the one end of locating the non slipping spur towards chuck body axial lead, wear and tear to certain degree after as anti-skidding line, can be in order to guarantee anti-skidding effect through the non slipping spur of more renewing, improve the convenience of using.

Optionally, one end of the antiskid block, which is far away from the axial lead of the chuck body, is fixed with a connecting seat, an adjusting bolt is arranged on the connecting seat in a penetrating mode, the floating clamping jaw is provided with an adjusting screw hole for threaded connection of the adjusting bolt, the connecting seat is fixed on the floating clamping jaw through the cooperation of the adjusting bolt and the adjusting screw hole, and the axis direction of the adjusting screw hole is parallel to the penetrating direction of the penetrating groove.

Through above-mentioned technical scheme, set up adjusting bolt and regulation screw, can be through adjusting bolt and the connection length between the regulation screw, and then adjust the relative position of non slipping spur in running through the groove, adjust the non slipping spur for the outstanding degree of floating jack catch orientation chuck body axial lead, improve the centre gripping adaptability to irregular work piece.

Optionally, the adjusting bolt is further sleeved with an anti-slip gasket.

Through above-mentioned technical scheme, set up anti-skidding gasket, reduce adjusting bolt for adjusting the not hard up of screw, improve the stability that the non-slipping spur is connected.

In summary, the present application includes at least one of the following beneficial technical effects:

(1) by arranging the floating clamping jaw, the floating clamping jaw can swing around a rotating axis in a specific range to collide the surface of an irregular workpiece to a certain degree, and the floating clamping jaw can perform certain abdication compensation on the bulge on the surface of the workpiece through small-amplitude swing, so that the surface of the irregular workpiece can be in contact with the floating clamping jaw to a greater degree, the uniform degree of stress on the surface of the irregular workpiece is improved, the stability of clamping the irregular workpiece is better, and the yield of workpiece processing is further improved;

(2) by arranging the transition abutting surface, the transition abutting surface can be abutted to a part with a larger outer diameter of the surface of the irregular workpiece, and the abutting part of the surface of the irregular workpiece is increased, so that the stress of the surface of the workpiece is more uniform, and the clamping stability is better;

(3) set up in the one end of non slipping spur towards chuck body axial lead through setting up anti-skidding line, after anti-skidding line wearing and tearing to a certain extent, can be through the non slipping spur of more renew in order to guarantee anti-skidding effect, improve the convenience of using.

Drawings

Fig. 1 is a schematic overall structure diagram of the present embodiment.

Fig. 2 is an exploded view of the overall structure of the present embodiment.

Reference numerals: 1. a chuck body; 2. moving the clamping jaw; 201. a sliding part; 202. a supporting seat; 3. a yielding groove; 4. a hinged lever; 5. a floating jaw; 6. a swing gap; 7. a first abutting surface; 8. a transition abutting surface; 9. a floating abutting surface; 10. the through groove is penetrated; 11. anti-skid blocks; 12. a connecting seat; 13. adjusting the bolt; 14. an anti-slip gasket; 15. adjusting the screw hole; 16. and (4) anti-skid lines.

Detailed Description

The present application is described in further detail below with reference to the attached drawings.

The embodiment of the application discloses a floating chuck.

Referring to fig. 1, the chuck comprises a chuck body 1, wherein a movable jaw 2 is connected to the axial end face of the chuck body 1 in a sliding manner, and the sliding direction of the movable jaw 2 is arranged along the radial direction of the chuck body 1. The three movable clamping jaws 2 are arranged, and the three movable clamping jaws 2 are uniformly distributed on the axial end face of the clamping chuck body 1.

Alternatively, four moving claws 2 may be provided.

Referring to fig. 1 and 2, the movable jaw 2 includes a sliding portion 201 and a supporting seat 202 that are integrally disposed, the sliding portion 201 is connected to an axial end face of the chuck body 1 in a sliding manner, the supporting seat 202 is located at an end face of the sliding portion 201 that deviates from the chuck body 1, and the supporting seat 202 is disposed away from an axial lead of the chuck body 1. The end surface of the supporting seat 202 facing the axial lead of the chuck body 1 is provided with a yielding groove 3, and the yielding groove 3 is perpendicular to two opposite side walls of the chuck body 1 and completely penetrates through the supporting seat 202 in the direction away from each other. The supporting seat 202 is rotatably connected with a hinge rod 4, the axis of the hinge rod 4 is parallel to the axis of the chuck body 1, and the hinge rod 4 penetrates through the supporting seat 202 and the abdicating groove 3 along the axis direction.

Every removes jack catch 2 and still rotates to be connected with unsteady jack catch 5, and the middle section and the articulated mast 4 fixed connection of jack catch 5 that float, unsteady jack catch 5 rotate through the cooperation with articulated mast 4 to be connected in removing jack catch 2.

A swing gap 6 is reserved between the end face, away from the axial lead of the chuck body 1, of each floating clamping jaw 5 and the end face, away from the axial lead of the chuck body 1, of the corresponding abdicating groove 3. When two sides of the end face, far away from the axis of the chuck body 1, of the floating clamping jaw 5 are respectively abutted against two sides of the end face, far away from the axis of the chuck body 1, of the abdicating groove 3, far away from the axis of the chuck body 1, of the floating clamping jaw 5, the floating clamping jaw 5 cannot continuously swing, the two positions are two limit positions where the floating clamping jaw 5 can swing, and the range between the two limit positions is a specific amplitude range where the floating clamping jaw 5 can swing.

The middle position of the end face of the floating clamping jaw 5 facing to the axial lead of the chuck body 1 is provided with a first abutting face 7, the end face of the floating clamping jaw 5 facing to the axial lead of the chuck body 1 is further provided with two transition abutting faces 8 and two floating abutting faces 9, the two transition abutting faces 8 are respectively positioned at two ends, far away from the rotation axis, of the first abutting face 7 and are connected with the first abutting face 7, and the two floating abutting faces 9 are respectively positioned at one ends, far away from the two transition abutting faces 8, of the first abutting face 7.

The distance from each first abutting surface 7 to the axial lead of the chuck body 1 is smaller than the distance from each floating abutting surface 9 to the axial lead of the chuck body 1, and the distance from each floating abutting surface 9 to the axial lead of the chuck body 1 is smaller than the distance from each transition abutting surface 8 to the axial lead of the chuck body 1.

Each floating butt joint surface 9 is provided with a through groove 10, and each through groove 10 penetrates through the corresponding floating clamping jaw 5 towards the direction far away from the axial lead of the clamping chuck body 1. Every runs through logical groove 10 and all wears to be equipped with non slipping spur 11, the one end that 1 axial lead of the chuck body was kept away from to every non slipping spur 11 all is fixed with connecting seat 12, adjusting bolt 13 is all worn to be equipped with by every connecting seat 12, adjusting bolt 13 cover is equipped with anti-skidding gasket 14, every jack catch 5 that floats keeps away from the both ends of 1 axial lead direction terminal surface of chuck body has all seted up regulation screw 15, every axis direction of adjusting screw 15 all is on a parallel with the adjacent direction of running through that leads to groove 10. The adjusting bolt 13 is screwed in the adjusting screw hole 15 and tightly presses the anti-skid gasket 14 against one end of the connecting seat 12 far away from the axial lead of the chuck body 1.

The end face of each anti-slip block 11 facing the direction of the axial lead of the chuck body 1 protrudes out of the floating butt joint face 9, and the end face of each anti-slip block 11 facing the direction of the axial lead of the chuck body 1 is provided with anti-slip grains 16.

When the three movable clamping jaws 2 slide towards the direction close to the axial lead of the chuck body 1, the three floating clamping jaws 5 clamp the workpiece towards the end face of the axial lead of the chuck body 1, and if the surface of the workpiece is irregular, the floating abutting face 9, the first abutting face 7 and the transition abutting face 8 can be selected according to the actual condition of the surface of the irregular workpiece and the size of the surface of the irregular workpiece. The floating abutting surface 9, the first abutting surface 7 and the transition abutting surface 8 can be abutted to each surface of the irregular workpiece better, so that each surface of the irregular workpiece is clamped more stably, the floating clamping jaw 5 can swing in a small amplitude, the adaptability to each surface of the irregular workpiece is improved, and the stability of clamping the irregular workpiece is further improved. The anti-slip lines 16 can limit the relative rotation between the irregular workpiece and the floating clamping jaws 5, and further improve the stability of clamping the irregular workpiece. Through the stable centre gripping with the work piece, improve the yields of work piece processing.

The working principle of the embodiment is as follows: when the irregular workpiece is clamped, the three movable clamping jaws 2 drive the three floating clamping jaws 5 to move towards the axial lead of the chuck body 1, and because the distances from the first abutting surfaces 7, the floating abutting surfaces 9 and the transition abutting surfaces 8 to the axial lead of the chuck body 1 are different, the irregular workpiece surface can be better clamped, the floating clamping jaws 5 can swing in a small range, fine adjustment can be performed on the irregular workpiece surface, and the stability of workpiece clamping is improved.

The above embodiments are preferred embodiments of the present application, and the protection scope of the present application is not limited by the above embodiments, so: equivalent changes in structure, shape and principle of the present application shall be covered by the protection scope of the present application.

Claims

1. The utility model provides a floating chuck, includes chuck body (1), chuck body (1) is equipped with a plurality of and removes jack catch (2), its characterized in that: each movable jaw (2) is rotatably connected with a floating jaw (5), the rotating axis of each floating jaw (5) is parallel to the axis of the chuck body (1), and each floating jaw (5) is limited to swing only in a specific amplitude range around the rotating axis of the floating jaw;

the end face of the floating clamping jaw (5) facing to the axial lead direction of the chuck body (1) is used for clamping a workpiece.

2. A floating chuck according to claim 1, wherein: remove jack catch (2) including portion of sliding (201) and supporting seat (202), portion of sliding (201) slides and connects in chuck body (1), supporting seat (202) are located the one end that portion of sliding (201) deviates from chuck body (1), supporting seat (202) are equipped with towards the terminal surface of chuck body (1) axial lead and are used for supplying the wobbling groove of stepping down (3) of floating jack catch (5), supporting seat (202) are equipped with hinge bar (4), floating jack catch (5) and hinge bar (4) fixed connection.

3. A floating chuck according to claim 1, further characterized by: the end face, facing the axial lead of the chuck body (1), of each floating clamping jaw (5) is provided with a first abutting face (7) and two floating abutting faces (9), the first abutting face (7) is located in the middle section of the floating clamping jaw (5), and the two floating abutting faces (9) are located at the two ends of the floating clamping jaw (5);

the distance from each floating abutting surface (9) to the axial lead of the chuck body (1) is larger than the distance from each first abutting surface (7) to the axial lead of the chuck body (1).

4. A floating chuck according to claim 3, further characterized by: the end face, facing the axial lead of the chuck body (1), of each floating clamping jaw (5) is provided with two transition abutting faces (8), the two transition abutting faces (8) are respectively located between the two floating abutting faces (9) of the same floating clamping jaw (5), and the two transition abutting faces (8) are respectively located at two ends of a first abutting face (7) of the same floating clamping jaw (5);

the distance from each transition abutting surface (8) to the axial lead of the chuck body (1) is larger than the distance from each floating abutting surface (9) to the axial lead of the chuck body (1).

5. A floating chuck according to claim 3, wherein: each floating butt joint surface (9) is provided with anti-skid grains (16).

6. A floating chuck according to claim 5, wherein: each floating butt joint surface (9) is provided with a through groove (10), and the through groove (10) penetrates through the floating clamping jaw (5) in the radial direction of the clamping chuck body (1) towards the direction far away from the axial lead of the clamping chuck body (1);

the anti-skidding block is characterized in that the anti-skidding blocks (11) penetrate through the through grooves (10), one ends, facing the axial lead of the chuck body (1), of the anti-skidding blocks (11) protrude out of the floating abutting surfaces (9), and the anti-skidding patterns (16) are arranged at one ends, facing the axial lead of the chuck body (1), of the anti-skidding blocks (11).

7. A floating chuck according to claim 6, wherein: the one end that chuck body (1) axial lead was kept away from in non slipping spur (11) is fixed with connecting seat (12), adjusting bolt (13) are worn to be equipped with in connecting seat (12), jack catch (5) float is equipped with the regulation screw (15) that supply adjusting bolt (13) threaded connection, connecting seat (12) are fixed in floating jack catch (5) through adjusting bolt (13) and the cooperation of adjusting screw (15), the axis direction of adjusting screw (15) is parallel with the direction of running through that runs through logical groove (10).

8. A floating chuck according to claim 7, wherein: the adjusting bolt (13) is also sleeved with an anti-skid gasket (14).