CN220805520U

CN220805520U - General three-jaw clamp for rear cover

Info

Publication number: CN220805520U
Application number: CN202321788864.5U
Authority: CN
Inventors: 周灶铨; 刘宏任; 赖桂祁; 吕国星
Original assignee: Guangzhou Yuxin Hardware Products Co ltd
Current assignee: Guangzhou Yuxin Hardware Products Co ltd
Priority date: 2023-07-07
Filing date: 2023-07-07
Publication date: 2024-04-19
Anticipated expiration: 2033-07-07

Abstract

The utility model discloses a general rear cover three-jaw clamp, which comprises a flange plate and a conversion plate arranged on one side of the flange plate, wherein a disc is arranged on one side of the conversion plate, which is far away from the flange plate, a supporting seat is arranged between the disc and the conversion plate, a claw part is axially extended from the supporting seat, a circle of first threaded holes and a circle of second threaded holes are arranged on the disc, a first through groove and a second through groove are respectively arranged on the outer side and the inner side of each claw part, a first fastening piece and a second fastening piece are respectively arranged on the first through groove and the second through groove, the first fastening piece and the second fastening piece respectively penetrate through the first through groove and the second through groove, and then, through selecting different first threaded hole positions and second threaded hole positions for connection, the installation position of the claw parts can be adjusted, so that the claw parts rotate around the center of the supporting seat, and therefore, when different workpieces are positioned, proper processing angles can be provided for the three-jaw clamp, and the improvement of the universality of the three-jaw clamp is ensured.

Description

General three-jaw clamp for rear cover

Technical Field

The utility model belongs to the field of clamps, and particularly relates to a general rear cover three-jaw clamp.

Background

The fixture plays a role in fixing a workpiece to be machined in machining and manufacturing and ensuring stability of the workpiece during machining, thereby playing an important role in modern industry, and in a broad sense, a device for rapidly, safely and conveniently mounting the workpiece in any process in a technological process can be called a fixture, wherein the three-jaw fixture has an automatic centering function due to the fact that the movement distances of three jaws of the three-jaw fixture are equal, so that the three-jaw fixture is widely applied to various machine tools.

However, in the prior art, the claw portion of the three-claw clamp cannot be rotationally adjusted around the center of the main shaft, so that different required machining angles cannot be met when different workpieces are machined, and further the universality of the three-claw clamp is insufficient.

Disclosure of Invention

The utility model mainly aims to provide a general three-jaw clamp with a rear cover, wherein the jaw part can rotate around the center of a main shaft, so that different workpiece processing angles can be met.

In order to achieve the above purpose, the technical scheme of the utility model is as follows:

The utility model provides a general back lid three-jaw anchor clamps, includes the ring flange and is in the conversion dish that flange axial one side set up, the conversion dish is kept away from one side of ring flange is equipped with the disc, the disc with be equipped with the supporting seat between the conversion dish, the supporting seat axial extension is equipped with three claw, be equipped with round first screw hole and setting on the disc and be in round second screw hole of first screw hole inboard, first screw hole with the second screw hole is used for adjusting the mounted position of claw, each the outside and the inboard of claw are equipped with first logical groove and second logical groove respectively, first logical groove with be equipped with first fastener and second fastener on the second logical groove respectively, each the claw outside is passed through respectively first logical groove with realize after the first screw hole is connected spacing in the claw outside, each the claw inboard passes through the second fastener passes respectively the second logical groove with realize after the second screw hole is connected the spacing in claw inboard.

In a specific embodiment of the present utility model, the claw portion includes a soft claw base and soft claws extending axially along the soft claw base, respectively, and contact blocks disposed at ends of the soft claws away from the soft claw base, respectively.

In a specific embodiment of the utility model, a positioning cavity is arranged among 3 soft claws.

In a specific embodiment of the present utility model, a positioning block is disposed at an end of the supporting seat near the disc, and the positioning block is located in the positioning cavity.

In a specific embodiment of the present utility model, one side of the soft claw base close to the supporting seat is provided with cambered surfaces respectively.

In a specific embodiment of the present utility model, a plurality of protrusions are respectively disposed on a side of the contact block, which is close to the positioning cavity, and an upper surface of each protrusion is a plane.

In a particular embodiment of the utility model, the first fastener comprises a mounting block and first bolts provided on the side and upper surface of the mounting block, respectively.

In a particular embodiment of the utility model, the second fastening member comprises a washer and a second bolt provided on the washer, respectively.

In a specific embodiment of the utility model, the disc is further provided with 3 sliding grooves and 3 grooves, wherein the 3 sliding grooves are respectively positioned between the first threaded hole and the second threaded hole, and the 3 grooves divide the disc into a first rotating area, a second rotating area and a third rotating area.

One of the above technical solutions of the present utility model has at least one of the following advantages or beneficial effects:

According to the utility model, the circle of first threaded holes are formed in the disc, the circle of second threaded holes are formed in the inner side of the first threaded holes, the first through grooves and the second through grooves are respectively formed in the outer side and the inner side of each claw part, the first fastening piece and the second fastening piece are respectively arranged on the first through grooves and the second through grooves, the first fastening piece and the second fastening piece respectively penetrate through the first through grooves and the second through grooves, and further, the installation positions of the claw parts can be adjusted by selecting different first threaded hole positions and different second threaded hole positions to be connected, the claw parts can be guaranteed to rotate around the centers of the supporting seats, and therefore, when the three-claw clamp is used for positioning different workpieces, proper machining angles can be provided, and the improvement of the universality of the three-claw clamp is further guaranteed.

Drawings

The utility model is further described below with reference to the drawings and examples;

FIG. 1 is a block diagram of one embodiment of the present utility model without positioning a workpiece;

FIG. 2 is a block diagram of one embodiment of the present utility model in positioning a workpiece;

FIG. 3 is a top view of one embodiment of the present utility model;

FIG. 4 is a cross-sectional view in the A-A direction of one embodiment of the present utility model;

FIG. 5 is a B-B directional cross-sectional view of one embodiment of the present utility model;

FIG. 6 is a diagram of the disk structure of one embodiment of the present utility model;

FIG. 7 is a block diagram of a jaw portion of one embodiment of the utility model;

FIG. 8 is a diagram of a contact block configuration in accordance with one embodiment of the present utility model;

FIG. 9 is a diagram of a mounting block configuration of one embodiment of the present utility model.

Detailed Description

Embodiments of the present utility model are described in detail below, examples of which are illustrated in the accompanying drawings, wherein like or similar reference numerals refer to like or similar elements or elements having like or similar functions throughout. The embodiments described below by referring to the drawings are exemplary only for explaining the present utility model and are not to be construed as limiting the present utility model.

In the description of the present utility model, it should be understood that references to orientation descriptions such as upper, lower, front, rear, left, right, etc. are based on the orientation or positional relationship shown in the drawings, are merely for convenience in describing the simplified description of the present utility model, and do not indicate or imply that the apparatus or elements referred to must have a particular orientation, be constructed and operated in a particular orientation, and thus should not be construed as limiting the present utility model.

In the description of the present utility model, a number means one or more, a number means two or more, and greater than, less than, exceeding, etc. are understood to not include the present number, and above, below, within, etc. are understood to include the present number. The description of the first and second is for the purpose of distinguishing between technical features only and should not be construed as indicating or implying relative importance or implicitly indicating the number of technical features indicated or implicitly indicating the precedence of the technical features indicated.

Furthermore, the terms "first," "second," and the like, are used for descriptive purposes only and are not to be construed as indicating or implying a relative importance or implicitly indicating the number of technical features indicated. Thus, features defining "first" and "second" may explicitly or implicitly include one or more features.

In the description of the present utility model, it should be noted that, unless explicitly specified and limited otherwise, the term "connected" should be construed broadly, and for example, it may be a fixed connection or an active connection, or it may be a detachable connection or a non-detachable connection, or it may be an integral connection; may be mechanically connected, may be electrically connected, or may be in communication with each other; can be directly connected or indirectly connected through an intermediate medium, and can be communication between two elements, indirect communication or interaction relationship between the two elements.

The following disclosure provides many different embodiments, or examples, for implementing different aspects of the utility model.

Referring to fig. 1 to 9, a general three-jaw clamp for a rear cover comprises a flange plate 1 and a conversion plate 2 arranged at one axial side of the flange plate 1, further, the flange plate 1 and the conversion plate 2 are connected through bolts, a disc 3 is arranged at one axial side of the conversion plate 2 far away from the flange plate 1, a supporting seat 4 is arranged between the disc 3 and the conversion plate 2, the supporting seat 4 is arranged so as to connect a jaw part and the conversion plate 2, three jaw parts 5 are axially extended and arranged on the supporting seat 4, a circle of first threaded holes 31 and a circle of second threaded holes 34 are arranged at the inner side of the first threaded holes 31 are arranged on the disc 3, the first threaded holes 31 and the second threaded holes 34 are used for adjusting the installation positions of the jaw parts 5, a first through groove 511 and a second through groove 512 are respectively arranged at the outer side and the inner side of each jaw part 5, a first fastener 7 and a second fastener 8 are respectively arranged on the first through groove 511 and the second through groove 512, the outer side of each claw part 5 passes through the first through groove 511 and is connected with the first threaded hole 31 through the first fastener 7 respectively to realize the limit of the outer side of the claw part 5, the inner side of each claw part 5 passes through the second through groove 512 and is connected with the second threaded hole 34 through the second fastener 8 respectively to realize the limit of the inner side of the claw part 5, because the first through groove 511 is arranged on the outer ring of the disc 3 and the second through groove 512 is arranged on the inner ring of the disc 3, the second through groove 512 is shorter than the first through groove 511, the first through groove 511 and the second through groove 512 are arc-shaped, the first fastener 7 and the second fastener 8 respectively pass through the first through groove 511 and the second through groove 512, the installation position of the claw part 5 can be adjusted by selecting different first threaded holes 31 and second threaded holes 34, the claw part 5 can rotate around the center of the supporting seat 4, and the utility model can be ensured when different workpieces are positioned, the utility model can provide proper processing angles according to different shapes of different workpieces, thereby having higher universality.

In one embodiment of the present utility model, the claw portion 5 includes a soft claw base 51, a soft claw 52 extending along an axial direction of the soft claw base 51, and a contact block 53 disposed at an end of the soft claw 52 away from the soft claw base 51, wherein the first through groove 511 and the second through groove 512 are located at two sides of the soft claw 52, respectively, such that the first fastening member 7 passes through the first through groove 511 and is connected with the first threaded hole 31, and the second fastening member 8 passes through the second through groove 512 and is connected with the second threaded hole 34, respectively, and an arc surface 513 is disposed at a side of the soft claw base 51 near the supporting seat 4, respectively, and since the middle portion of the supporting seat 4 is cylindrical, a side of the soft claw base 51 near the supporting seat 4 is disposed as an arc surface, the claw portion 5 can be more attached to the supporting seat 4 when rotating around a center of the supporting seat 4, and the rotating process is smoother.

In one embodiment of the utility model, a positioning cavity 6 is arranged among the plurality of soft claws 52, a positioning block 9 is arranged at one end of the supporting seat 4 close to the disc 3, and the positioning block 9 is positioned in the positioning cavity 6. The workpiece can be accurately positioned by arranging the positioning cavity 6 and the positioning block 9, wherein a plurality of threaded holes are formed in one side of the supporting seat 4, which is provided with the positioning block 9, so that the positioning block 9 can adjust different positions according to the shape of the workpiece when the workpiece is positioned, and therefore accurate support is provided for the workpiece. The positioning cavity 6 is a cavity with an opening at the upper end, and the positioning work for a cylindrical or small-size workpiece is more accurate by the arrangement.

In one embodiment of the utility model, a plurality of protrusions 531 are respectively arranged on one side of the contact block 53 close to the positioning cavity 6, and the upper surfaces of the protrusions 531 are plane, wherein the protrusions 531 are distributed on the surface of the contact block 53, which is contacted with the workpiece, in a trapezoid manner, so that the uniform stress of the contact surface of the workpiece to be processed and the pressing block can be ensured, and the upper surfaces of the protrusions 531 are plane, so that the friction force of the contact block 53, which is contacted with the surface of the workpiece to be processed, can be increased.

In one embodiment of the present utility model, the first fastening member 7 includes a mounting block 71 and first bolts 72 provided on the side and upper surfaces of the mounting block 71, respectively, two first bolts 72 being provided on the upper surface of the mounting block 71, and one first bolt 72 being provided on the side of the mounting block 71 remote from the soft claw 52. In addition, the second fastener 8 includes a washer 81 and a second bolt 82 provided on the washer 81, respectively, so that the arrangement can ensure the stability when the claw portion 5 is mounted, so that the claw portion 5 is not displaced relatively when the workpiece is positioned, and further, a machining error is caused.

In one embodiment of the present utility model, the disc 3 is further provided with 3 sliding grooves 32 and 3 grooves 33, wherein the sliding grooves 32 are respectively located between the first threaded hole 31 and the second threaded hole 34, the grooves 33 divide the disc 3 and the first threaded hole 31 and the second threaded hole 34 into 3 sector areas, namely, a first rotating area 35, a second rotating area 36 and a third rotating area 37, so that when the claw portion 5 rotates around the center of the supporting seat 4, the rotating process is divided into three parts, and the manual operation claw portion 5 is easier to position when rotating.

While embodiments of the present utility model have been shown and described, it will be understood by those of ordinary skill in the art that: many changes, modifications, substitutions and variations may be made to the embodiments without departing from the spirit and principles of the utility model, the scope of which is defined by the claims and their equivalents.

Claims

1. The utility model provides a general back lid three-jaw anchor clamps, includes ring flange (1) and be in conversion dish (2) that ring flange (1) axial one side set up, its characterized in that, conversion dish (2) keep away from one side of ring flange (1) is equipped with disc (3), be equipped with supporting seat (4) between disc (3) and conversion dish (2), supporting seat (4) axial extension is equipped with 3 claw (5), be equipped with round first screw hole (31) and set up round second screw hole (34) in first screw hole (31) inboard on disc (3), first screw hole (31) with second screw hole (34) are used for adjusting the mounted position of claw (5), the outside and the inboard of each claw (5) are equipped with first through groove (511) and second through groove (512) respectively, be equipped with first fastener (7) and second fastener (8) on first through groove (511) and the second through groove (512) respectively, the claw (5) outside is passed through first screw hole (511) respectively and is realized after the first screw hole (31) is passed through respectively, the inner side of each claw part (5) is connected with the second threaded hole (34) through the second fastener (8) through the second through groove (512) respectively, and then limiting of the inner side of each claw part (5) is achieved.

2. The universal rear cover three jaw clamp of claim 1, wherein: the claw part (5) comprises a soft claw base (51), soft claws (52) which are respectively arranged along the axial direction of the soft claw base (51) in an extending mode, and contact blocks (53) which are respectively arranged at one ends, far away from the soft claw base (51), of the soft claws (52).

3. The universal rear cover three jaw clamp of claim 2, wherein: and positioning cavities (6) are arranged among the 3 soft claws (52).

4. A universal rear cover three jaw clamp as defined in claim 3 wherein: one end of the supporting seat (4) close to the disc (3) is provided with a positioning block (9), and the positioning block (9) is positioned in the positioning cavity (6).

5. The universal rear cover three jaw clamp of claim 4, wherein: and cambered surfaces (513) are respectively arranged on one sides of the soft claw bases (51) close to the supporting seats (4).

6. The universal rear cover three jaw clamp of claim 5, wherein: and a plurality of protrusions (531) are respectively arranged on one side, close to the positioning cavity (6), of the contact block (53), and the upper surfaces of the protrusions (531) are planes.

7. The universal rear cover three jaw clamp of claim 1, wherein: the first fastening member (7) includes a mounting block (71) and first bolts (72) provided on the side surfaces and the upper surface of the mounting block (71), respectively.

8. The universal rear cover three jaw clamp of claim 1, wherein: the second fastening member (8) includes a washer (81) and second bolts (82) provided on the washers (81), respectively.

9. The universal rear cover three jaw clamp of claim 1, wherein: still be equipped with 3 spouts (32) and 3 recess (33) on disc (3), 3 spout (32) are located respectively first screw hole (31) with between second screw hole (34), 3 recess (33) will disc (3) divide into first rotation district (35), second rotation district (36) and third rotation district (37).