CN203972895U - A kind of chuck - Google Patents

Abstract

The utility model discloses a kind of chuck, comprise chuck body and claw, described claw comprises location claw and movable jaw, location claw and movable jaw are all made up of claw Connection Block and claw clamping part, described claw clamping part is provided with swallow-tailed groove, swallow-tailed groove is provided with clamp mark-proof cushion block, clamp mark-proof cushion block one end face and claw clamping part are suitable, other end and part to be processed to be held face suitable, described location claw interfixes by hold-down bolt and adjustment bolt, described movable jaw bottom is provided with positioning key, described chuck body is provided with the loose slot suitable with movable jaw, described chuck body is provided with two push rods that can hold out against part to be processed.The utility model is simple in structure, easy to use, can effectively prevent that loosening phenomenon from appearring in part to be processed, avoids processing parts to occur catcher mark, applied widely.

Description

a chuck

technical field

The utility model relates to the field of accessories for machining, in particular to a chuck.

Background technique

The chuck is a mechanical device used to clamp the workpiece on the machine tool. The workpiece is clamped and positioned by the claws distributed on the chuck body. However, there are many problems in the current chuck, such as the workpiece cannot be clamped quickly and well during the operation process, the workpiece is not clamped firmly, and the workpiece is loose and slippery. In addition, when processing shaft parts or parts with curved surfaces, Since the clamping parts of the claws of the existing chucks are all planar structures, after the above-mentioned parts are processed, the clamping parts are prone to pinching marks, thereby affecting the precision of the parts.

Utility model content

The purpose of the utility model is to provide a chuck that can quickly and well clamp the parts and effectively prevent the parts from slipping. Thus affecting the accuracy of parts.

The technical scheme that the utility model adopts is as follows:

A chuck includes a chuck body and jaws, the jaws include a positioning jaw and a movable jaw, both of the positioning jaws and the movable jaws are composed of a jaw connecting seat and a jaw clamping part, the The clamping part of the jaw is provided with a dovetail-shaped groove, and the dovetail-shaped groove is provided with an anti-pinch pad. The clamped surface of the processed part is compatible, the positioning jaws are fixed to each other by the compression bolt and the adjustment bolt, the positioning key is provided at the bottom of the movable jaw, and the chuck body is equipped with a Adaptable movable slots, the chuck body is provided with two ejector rods that can press against the workpiece to be processed.

The end face of the anti-pinch pad that fits the clamped surface of the processed part is an arc-shaped structure.

The anti-pinching cushion block is connected with the clamping part of the jaw through a screw thread, which is convenient for disassembly.

The angle formed by the dovetail-shaped groove is 150 degrees.

The positioning keys include vertical positioning keys and horizontal positioning keys.

The center of the chuck body is provided with a circular through hole.

The ejector rod is installed on the chuck body through threaded connection, and the ejector rod is installed on the chuck body through threaded connection, which facilitates the installation and disassembly of the ejector rod.

Compared with the prior art, the beneficial effects of the utility model are as follows:

The utility model designs the positioning jaws and movable jaws, the positioning jaws are mutually fixed by pressing bolts and adjusting bolts, the bottom of the movable jaws is provided with a positioning key, and the chuck body is provided with movable jaws that match the movable jaws. Groove, which can be used to clamp parts conveniently and quickly. There is a dovetail-shaped groove in the clamping part of the jaw. The dovetail-shaped groove is equipped with an anti-pinching pad. For the processing of various shaft parts, There will be no pinch marks, which ensures the accuracy of the processed parts. At the same time, the chuck body is equipped with a push rod that can tighten the processed parts, which can effectively prevent the processed parts from loosening and slipping, and increase the precision of the processed parts. Stability, improve the pass rate of processing. The utility model has the advantages of simple structure, convenient use and wide application range.

Description of drawings

Fig. 1 is the structural representation of the utility model;

Fig. 2 is the rear view of the movable claw of the utility model.

Detailed ways

Below in conjunction with embodiment and accompanying drawing, the utility model is further described.

Referring to accompanying drawings 1 and 2, a chuck includes a chuck body 1 and jaws, the jaws include a positioning jaw 2 and a movable jaw 3, and both the positioning jaw 2 and the movable jaw 3 It is composed of the claw connection seat 4 and the claw clamping part 5. The claw clamping part 5 is provided with a dovetail-shaped groove 6. The angle formed by the dovetail-shaped groove 6 is 150 degrees. The dovetail-shaped concave The groove 6 is provided with an anti-pinch pad 7, one end face of the anti-pinch pad 7 is adapted to the clamping part 5 of the claw, and the other end face is adapted to the clamped surface of the processed part, and the anti-pinch pad 7. The end face adapted to the clamped surface of the processed part is an arc-shaped structure. The anti-pinch pad 7 is connected with the clamping part 5 of the claw by thread, which is easy to disassemble. The positioning claw 2 The pressing bolt 201 and the adjusting bolt 202 are fixed to each other. The bottom of the movable jaw 3 is provided with a longitudinal positioning key 301 and a lateral positioning key 302. Movable groove 8, described chuck body 1 is provided with two ejector rods 9 that can push against the workpiece to be processed, and ejector rod 9 is installed on the chuck body 1 through screw connection, is convenient to the installation and dismounting of ejector rod, so The center of the chuck body 1 is provided with a circular through hole 10 . The chuck of the present utility model can clamp the parts conveniently and quickly by designing the positioning jaws 2 and the movable jaws 3. The jaw clamping part 5 is provided with a dovetail-shaped groove 6, and the dovetail-shaped groove 6 is provided with an anti-clamp pad 7, for the processing of various shaft parts, there will be no pinch marks, which ensures the accuracy of the processed parts. The ejector rod 9 can effectively prevent loosening and slipping of the processed parts, increase the stability of the processed parts, and improve the pass rate of processing. The structure is simple, easy to use, and has a wide range of applications.

Claims (7)

1. a chuck, comprise chuck body and claw, it is characterized in that: described claw comprises location claw and movable jaw, described location claw and movable jaw are all made up of claw Connection Block and claw clamping part, described claw clamping part is provided with swallow-tailed groove, swallow-tailed groove is provided with clamp mark-proof cushion block, clamp mark-proof cushion block one end face and claw clamping part are suitable, other end and part to be processed to be held face suitable, described location claw interfixes by hold-down bolt and adjustment bolt, described movable jaw bottom is provided with positioning key, described chuck body is provided with the loose slot suitable with movable jaw, described chuck body is provided with two push rods that can hold out against part to be processed.

2. chuck according to claim 1, is characterized in that: the suitable end face of described clamp mark-proof cushion block and the face that is held of part to be processed is circular-arc structure.

3. chuck according to claim 1, is characterized in that: described clamp mark-proof cushion block and claw clamping part are threaded connection.

4. chuck according to claim 1, is characterized in that: the angle that described swallow-tailed groove forms is 150 degree.

5. chuck according to claim 1, is characterized in that: described positioning key comprises longitudinal register key and located lateral key.

6. chuck according to claim 1, is characterized in that: the central authorities of described chuck body are provided with manhole.

7. chuck according to claim 1, is characterized in that: described push rod is threaded connection and is arranged on chuck body.