CN214349698U

CN214349698U - Chuck jaw convenient to change

Info

Publication number: CN214349698U
Application number: CN202023335803.2U
Authority: CN
Inventors: 陈兵; 孙强
Original assignee: Changzhou Kepute Jiashun Machinery Industry Co ltd
Current assignee: Changzhou Kepute Jiashun Machinery Industry Co ltd
Priority date: 2020-12-31
Filing date: 2020-12-31
Publication date: 2021-10-08
Anticipated expiration: 2030-12-31

Abstract

The application relates to a chuck raw claw convenient to change relates to the field of chucks, and it includes the claw body, can dismantle on the claw body and be connected with the tight piece of clamp that is used for pressing from both sides tight work piece. This application has and presss from both sides tight piece and can directly dismantle, need not to dismantle whole claw body, comparatively convenient, the lower effect of cost.

Description

Chuck jaw convenient to change

Technical Field

The application relates to the field of chucks, in particular to a chuck jaw convenient to replace.

Background

The chuck is a mechanical device used for clamping a workpiece on a machine tool, and generally comprises a chuck body, a movable jaw, a jaw driving mechanism and the like. The chuck realizes the clamping of the workpiece by utilizing the radial movement of the movable clamping jaws uniformly distributed on the chuck body. The movable claw is also called as a clamping jaw and a raw claw, the raw claw is fixed on the driving mechanism through a bolt, and the raw claw can be disassembled, assembled and replaced.

Chinese patent with publication number CN210648565U discloses a chuck raw claw convenient to replace, which comprises a claw body, wherein the claw body comprises a fixing surface for connecting with a chuck, a first abutting block, a second abutting block and a third abutting block are integrally fixed on the claw body, the distances between the end surfaces of the first abutting block, the second abutting block and the third abutting block departing from the fixing surface and the fixing surface are sequentially decreased, the first abutting block, the second abutting block and the third abutting block are combined into a three-layer step shape, the side wall of the first abutting block facing the second abutting block is a first abutting surface, the side wall of the second abutting block facing the third abutting block is a second abutting surface, and the side wall of the third abutting block departing from the second abutting block is a third abutting surface; the middle parts of the first abutting surface, the second abutting surface and the third abutting surface are arc-shaped and concave inwards, and the first abutting surface, the second abutting surface and the third abutting surface are provided with cutting grooves which divide the abutting surfaces into a plurality of surfaces.

The inventor finds that the contact surface of the claw body and the workpiece is easily abraded due to long-term stress, so that the clamping force is insufficient or the precision is reduced, but the whole chuck needs to be detached when the claw is replaced, so that the chuck is troublesome and the cost is high.

SUMMERY OF THE UTILITY MODEL

In order to improve the trouble problem of chuck jaw generation change, this application provides a chuck jaw generation convenient to change.

The application provides a pair of chuck raw claw convenient to change adopts following technical scheme:

the chuck jaw convenient to replace comprises a jaw body, wherein a clamping block used for clamping a workpiece is detachably connected to the jaw body.

Through adopting above-mentioned technical scheme, press from both sides tight piece and be used for pressing from both sides tight work piece, when pressing from both sides tight piece and appearing wearing and tearing, only need change press from both sides tight piece can, press from both sides tight piece simultaneously and can dismantle with the claw body and be connected, need not to dismantle whole claw body, and is comparatively convenient, and the cost is lower.

Optionally, the claw body is provided with a clamping groove along the length direction thereof, the clamping block is inserted into the clamping groove, and a fixing device for fixing the clamping block is arranged on the side wall of the clamping groove.

Through adopting above-mentioned technical scheme, press from both sides tight piece and insert in pressing from both sides tight inslot to realize fixed connection through fixing device, be convenient for press from both sides the installation and removal of tight piece.

Optionally, the fixing device comprises a sliding block and a compression spring, a sliding groove is formed in the side wall of the clamping block along the width direction of the claw body, the sliding block is connected in the sliding groove in a sliding mode, the compression spring is also arranged in the sliding groove, one end of the compression spring is abutted to the sliding block, the other end of the compression spring is abutted to the groove bottom of the sliding groove, and a clamping groove for inserting the sliding block is formed in the side wall of the clamping groove.

By adopting the technical scheme, before the clamping block is inserted into the clamping groove, the sliding block is firstly pressed into the sliding groove, then the clamping block is inserted into the clamping groove, so that the clamping groove is aligned with the sliding groove, then the sliding block is inserted into the clamping groove under the action of the compression spring, and the clamping block is fixed in the clamping groove.

Optionally, one end of the clamping groove in the length direction is provided with a stop block for abutting against the clamping block, and when the clamping block abuts against the stop block, the clamping groove is aligned with the sliding groove.

Through adopting above-mentioned technical scheme, the setting of dog is convenient for press from both sides tight piece and is fixed a position fast, promotes the installation effectiveness who presss from both sides tight piece.

Optionally, an inclined plane is arranged at one end, facing the clamping groove, of the sliding block, the inclined plane is arranged facing the stop block, a part of the inclined plane is located in the sliding groove, and a part of the inclined plane is located outside the sliding groove.

Through adopting above-mentioned technical scheme, press from both sides tight piece and insert when pressing from both sides tight groove, the inclined plane earlier with press from both sides the lateral wall butt in tight groove, press back the spout with the slider through the inclined plane, after pressing from both sides tight piece and dog butt, the spout also aims at with the draw-in groove, the draw-in groove is inserted to the spout under compression spring's effect, will press from both sides tight piece to be fixed in and press from both sides tight inslot, further promote the convenience of pressing from both sides tight piece installation.

Optionally, a protrusion is disposed at one end of the clamping block facing the stopper, and a groove for inserting the protrusion is disposed on the stopper.

Through adopting above-mentioned technical scheme, the cooperation of lug and recess further increases the compactness of pressing from both sides tight piece and pressing from both sides tight groove and being connected, promotes the joint strength who presss from both sides tight piece and the claw body.

Optionally, the draw-in groove runs through the claw body, sliding connection has the briquetting in the draw-in groove, when the slider is located the draw-in groove, the briquetting stretches out outside the draw-in groove, be equipped with first stopper on the lateral wall of briquetting, be equipped with first spacing groove along the slip direction of slider on the lateral wall of draw-in groove, first stopper sliding connection is in first spacing inslot.

Through adopting above-mentioned technical scheme, press the briquetting, the briquetting slides in the draw-in groove, returns the spout with the slider pressure, then the pulling presss from both sides tight piece, can will press from both sides tight piece and extract from pressing from both sides tight inslot, and is comparatively convenient.

Optionally, one end of the clamping block, which is far away from the claw body, is provided with an arc surface.

By adopting the technical scheme, the possibility of mutual interference of the three clamping jaws when the arc surface can reduce the clamping of a small workpiece can be reduced.

Optionally, a plurality of reinforcing grooves are formed in the arc surface and along the length direction of the claw body.

Through adopting above-mentioned technical scheme, the contact area of the reducible clamp block of reinforcing groove and work piece increases local pressure, and then promotes the clamp force.

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

1. through the arrangement of the clamping block, the clamping block can be directly disassembled, the whole claw body does not need to be disassembled, and the effects of convenience and lower cost are achieved;

2. through the setting of slider, compression spring, spout, draw-in groove, dog and inclined plane, be convenient for press from both sides the installation and removal of tight piece, promote the convenience that presss from both sides tight piece and change.

Drawings

Fig. 1 is a schematic structural diagram of the whole in the embodiment of the present application.

Fig. 2 is a schematic sectional view of a-a in fig. 1.

Fig. 3 is a schematic sectional view of B-B in fig. 2.

Fig. 4 is a partially enlarged view of a portion C in fig. 3.

Fig. 5 is a schematic structural diagram showing a slope in the embodiment of the present application.

Description of reference numerals: 1. a claw body; 11. a clamping groove; 111. a card slot; 1111. briquetting; 1112. a first stopper; 1113. a first limit groove; 1114. pressing a groove; 12. a stopper; 121. a groove; 2. a clamping block; 21. a chute; 211. a second limit groove; 22. a circular arc surface; 221. a reinforcing groove; 24. a bump; 23. a fixing device; 231. a slider; 2311. a bevel; 2312. a second limiting block; 232. compressing the spring.

Detailed Description

The present application is described in further detail below with reference to figures 1-5.

The embodiment of the application discloses a chuck jaw convenient to change.

Referring to fig. 1, a chuck raw claw convenient to change includes the claw body 1, has seted up along its length direction on the claw body 1 and has pressed from both sides tight groove 11, presss from both sides tight groove 11 sliding connection and has a tight piece 2 for press from both sides tight work piece, press from both sides tight piece 2 and can dismantle with the claw body 1 through fixing device 23 and be connected, press from both sides tight piece 2 wearing and tearing back pressing from both sides tight piece 2, be convenient for change and press from both sides tight piece 2, promote the convenience of use.

Referring to fig. 1 and 2, an arc surface 22 is formed at one end, away from the claw body 1, of the clamping block 2, and the arc surface 22 is used for reducing mutual interference among the three claw bodies 1 when the three claw bodies 1 clamp a workpiece together, so that the workpiece with a smaller size cannot be clamped. The arc surface 22 has also been seted up the strengthening groove 221 along the intermediate position of the width direction of the claw body 1, and the strengthening groove 221 has a plurality ofly along the length direction array of the claw body 1, is convenient for reduce the area of contact of pressing from both sides tight piece 2 and work piece, increases local pressure, and then promotes the clamp force.

Referring to fig. 2, a stopper 12 is integrally formed at one end of the clamping groove 11 in the longitudinal direction thereof to abut against the clamping block 2 to help the clamping block 2 to be positioned. The end of the clamping block 2 facing the stop block 12 is integrally formed with a protrusion 24, and the stop block 12 is formed with a groove 121 adapted to the protrusion 24 for facilitating the insertion of the protrusion 24, so as to increase the connection tightness between the clamping block 2 and the claw body 1.

Referring to fig. 3 and 4, the side wall of the clamping block 2 along the width direction of the claw body 1 is provided with a sliding groove 21, the fixing device 23 includes a sliding block 231, a second limiting block 2312 and a compression spring 232, the sliding block 231 is slidably connected in the sliding groove 21, the compression spring 232 is also arranged in the sliding groove 21, one end of the compression spring abuts against the sliding block 231, the other end of the compression spring abuts against the groove bottom of the sliding groove 21, the side wall of the clamping groove 11 is provided with a clamping groove 111 for inserting the sliding block 231, when the clamping block 2 abuts against the stopping block 12, the sliding groove 21 is aligned with the clamping groove 111, and the sliding block 231 is conveniently inserted under the action of the compression spring 232. The second stopper 2312 is fixedly connected to the side wall of the sliding block 231, a second stopper groove 211 is formed in the side wall of the sliding groove 21, and the second stopper groove 211 is used for allowing the second stopper 2312 to slide along the sliding direction of the sliding block 231 and limiting the sliding block 231, so that the possibility that the sliding block 231 is directly separated from the sliding groove 21 is reduced.

Referring to fig. 4 and 5, the slider 231 is further provided with a slope 2311 at an end facing the slot 111, and the slope 2311 is disposed facing the stopper 12. By controlling the shape and position of the second limiting groove 211, the inclined surface 2311 is partially located in the sliding groove 21 and partially located outside the sliding groove 21, when the clamping block 2 is inserted into the clamping groove 11, the inclined surface 2311 is firstly abutted against the side wall of the clamping groove 11, the sliding block 231 is pressed back to the sliding groove 21 through the inclined surface 2311, then the clamping block 2 is continuously inserted into the clamping groove 11 until the clamping block 2 is abutted against the stop block 12, at the moment, the sliding groove 21 is aligned with the clamping groove 111, the sliding block 231 is inserted into the clamping groove 111 under the action of the compression spring 232, and the clamping block 2 is fixed in the clamping groove 11.

Referring to fig. 4, in order to take out the clamping block 2, the clamping groove 111 is provided with a pressing groove 1114 at an end away from the sliding groove 21, the pressing groove 1114 is slidably connected with a pressing block 1111, the pressing groove 1114 penetrates through a side wall of the clamping groove 11, a first limiting block 1112 is fixedly connected to the side wall of the pressing block 1111, and a first limiting groove 1113 is provided on the side wall of the pressing groove 1114 and is used for allowing the first limiting block 1112 to slide along the sliding direction of the sliding block 231. Through the position and the shape of seting up of controlling first spacing groove 1113 for when slider 231 inserts in draw-in groove 111, briquetting 1111 stretches out draw-in groove 111 and keeps away from the one end of spout 21, and the operating personnel of being convenient for presses briquetting 1111 down, and simultaneously after briquetting 1111 is pressed down, slider 231 just with press from both sides the lateral wall parallel and level of tight groove 11, the extraction of the tight piece 2 of clamp of being convenient for. The fixing device 23, the sliding groove 21, the clamping groove 111, the pressing groove 1114, the pressing block 1111 and the like can be oppositely arranged along the width direction of the claw body 1, so that the stability of fixing the clamping block 2 is improved.

The implementation process of the chuck jaw convenient to replace in the embodiment of the application is as follows: when the clamping block 2 needs to be installed in the clamping groove 11, the inclined surface 2311 abuts against the side wall of the clamping groove 11, the sliding block 231 is pressed back to the sliding groove 21 through the inclined surface 2311, then the clamping block 2 is continuously inserted into the clamping groove 11 until the clamping block 2 abuts against the stop block 12, at this time, the sliding groove 21 is aligned with the clamping groove 111, the sliding block 231 is inserted into the clamping groove 111 under the action of the compression spring 232, and the clamping block 2 is fixed in the clamping groove 11.

When the clamping block 2 needs to be detached, the pressing block 1111 is pressed down, one end of the sliding block 231, which is far away from the sliding groove 21, is flush with the side wall of the clamping groove 11, and then the clamping block 2 is pulled out, so that the detachment of the clamping block 2 is completed.

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: all equivalent changes made according to the 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 chuck raw claw convenient to change, includes the claw body (1), its characterized in that: the claw body (1) is detachably connected with a clamping block (2) used for clamping a workpiece; the claw body (1) is provided with a clamping groove (11) along the length direction thereof, the clamping block (2) is inserted into the clamping groove (11), and the side wall of the clamping groove (11) is provided with a fixing device (23) for fixing the clamping block (2).

2. The chuck jaw as claimed in claim 1, wherein said chuck jaw is adapted to be replaced by: fixing device (23) include slider (231) and compression spring (232), pressing from both sides tight piece (2) and having seted up spout (21) on the lateral wall along the claw body (1) width direction, slider (231) sliding connection is in spout (21), and compression spring (232) also set up in spout (21), and one end and slider (231) butt, the tank bottom butt of the other end and spout (21), be equipped with on the lateral wall that presss from both sides tight groove (11) and supply slider (231) male draw-in groove (111).

3. The chuck jaw as claimed in claim 2, wherein said chuck jaw is adapted to be replaced by: one end of the clamping groove (11) in the length direction is provided with a stop block (12) used for being abutted to the clamping block (2), and when the clamping block (2) is abutted to the stop block (12), the clamping groove (111) is aligned to the sliding groove (21).

4. The chuck jaw as claimed in claim 3, wherein said chuck jaw is adapted to be replaced by: one end, facing the clamping groove (111), of the sliding block (231) is provided with an inclined surface (2311), the inclined surface (2311) is arranged facing the stop block (12), one part of the inclined surface (2311) is located in the sliding groove (21), and the other part of the inclined surface is located outside the sliding groove (21).

5. The chuck jaw as claimed in claim 4, wherein said chuck jaw is adapted to be replaced by: one end, facing the stop block (12), of the clamping block (2) is provided with a convex block (24), and the stop block (12) is provided with a groove (121) for inserting the convex block (24).

6. The chuck jaw as claimed in claim 5, wherein said chuck jaw is adapted to be replaced by: the claw body (1) is run through to draw-in groove (111), sliding connection has briquetting (1111) in draw-in groove (111), when slider (231) is located draw-in groove (111), briquetting (1111) stretch out outside draw-in groove (111), be equipped with first stopper (1112) on the lateral wall of briquetting (1111), the slip direction of following slider (231) on the lateral wall of draw-in groove (111) is equipped with first spacing groove (1113), first stopper (1112) sliding connection is in first spacing groove (1113).

7. The chuck jaw as claimed in claim 1, wherein said chuck jaw is adapted to be replaced by: and an arc surface (22) is arranged at one end of the clamping block (2) far away from the claw body (1).

8. The chuck jaw as claimed in claim 7, wherein said chuck jaw is adapted to be replaced by: the arc surface (22) is provided with a plurality of reinforcing grooves (221), and the reinforcing grooves (221) are arranged along the length direction of the claw body (1).