CN216178582U

CN216178582U - Clamping device is used in processing of holder

Info

Publication number: CN216178582U
Application number: CN202122523078.XU
Authority: CN
Inventors: 高永和; 尹建; 孙巍; 姜瑞; 刘永; 马帅
Original assignee: Dalian Ruigu Science & Technology Co ltd
Current assignee: Dalian Ruigu Science & Technology Co ltd
Priority date: 2021-10-20
Filing date: 2021-10-20
Publication date: 2022-04-05
Anticipated expiration: 2031-10-20

Abstract

The utility model relates to a clamping device for grinding thin-wall parts, in particular to a clamping device for processing a retainer, which comprises: the device comprises a rotary table, a positioning mechanism, a clamping mechanism and a workpiece; the top end of the rotary table is equally divided at equal angles from the center to the edge of the rotary table, and a plurality of positioning points of the positioning mechanism and a plurality of clamping points of the clamping mechanism are formed at the equally divided positions; a plurality of positioning points of the positioning mechanism and a plurality of clamping points of the clamping mechanism are distributed on the rotary table in a staggered manner; the positioning mechanism is used for centering the workpiece and clamping the clamping mechanism to realize clamping; the positioning mechanism and the clamping mechanism are matched for use to position and clamp the workpiece, and the screwing force of the clamping mechanism for screwing the screw is used for neutralizing the deformation force generated in the machining process, so that the product meets the requirement of roundness.

Description

Clamping device is used in processing of holder

Technical Field

The utility model relates to a clamping device for grinding thin-walled workpieces, in particular to a clamping device for machining a retainer, and belongs to the field of machining.

Background

In the lathe machining of the thin-wall ductile iron retainer, a clamping jaw of a traditional numerical control vertical lathe is clamped by 4 points or 6 points, and in the machining process of clamping a workpiece, the roundness of the machined thin-wall part is out of tolerance due to the size and the position of the clamping force, so that the requirement is difficult to meet, and the follow-up procedure cannot be continued to be normally machined.

Disclosure of Invention

In view of the above-mentioned technical problems, an object of the present invention is to provide a clamping device for processing a retainer, which can ensure the roundness requirement of a workpiece during the processing process and improve the processing efficiency.

In order to achieve the purpose, the utility model adopts the technical scheme that: a clamping device for processing a retainer comprises: the device comprises a rotary table, a positioning mechanism, a clamping mechanism and a workpiece; the top end of the rotary table is equally divided at equal angles from the center to the edge of the rotary table, and a plurality of positioning points of the positioning mechanism and a plurality of clamping points of the clamping mechanism are formed at the equally divided positions; a plurality of positioning points of the positioning mechanism and a plurality of clamping points of the clamping mechanism are distributed on the rotary table in a staggered manner; the positioning mechanism is used for centering the workpiece and clamping the clamping mechanism to realize clamping;

furthermore, the positioning mechanism forms a plurality of positioning points on the rotary table in a sliding way through the clamping jaw, and the clamping jaw can move towards the center or the edge of the rotary table on the sliding way of the rotary table, so that the adjusting function is realized, and the workpiece is aligned and centered;

furthermore, the clamping jaw is connected with the rotary table in a T-shaped slide way structure, a T-shaped block is arranged on the lower bottom surface of the clamping jaw, a T-shaped groove is formed in the rotary table corresponding to the position of the T-shaped block of the clamping jaw, and the T-shaped groove forms a slide way of the T-shaped block to enable the T-shaped block to slide in the slide way;

furthermore, the clamping jaw is of a two-stage step structure and is provided with a first step and a second step from bottom to top, and when the clamping jaw is used, the inner diameter of a workpiece is abutted against the outer side wall of the second step;

furthermore, in order to avoid the collision damage caused by the contact of the workpiece and the clamping jaw, the outer side wall and the inner side wall of the second step of the clamping jaw are respectively provided with a friction pad;

further, the inner side wall of the second step of the clamping jaw faces the center direction of the rotary table, and the outer side wall of the second step of the clamping jaw faces the edge direction of the rotary table;

further, the clamping mechanism comprises: cushion blocks, limiting blocks, tightening screws and countersunk screws; the bottom of the cushion block is provided with a convex block, the rotary table corresponding to the convex block is provided with a groove matched with the convex block, and the cushion block is embedded in the groove through the convex block and connected with the rotary table; the cushion block is provided with a screw hole and is fixed on the rotary table through a countersunk screw, one side of the cushion block is fixedly provided with a limiting block, two ends of the limiting block are respectively provided with a limiting pin hole, and a limiting pin is arranged in the limiting pin hole; the workpiece is placed on the cushion block, the limiting pins at two ends of the limiting block are respectively arranged on the inner diameter and the outer diameter of the workpiece, the upper part of the limiting pin is provided with a tightening screw, and the inner diameter and the outer diameter of the workpiece are respectively clamped by adjusting the tightening screw;

furthermore, the limiting block is fixed on the side wall of the cushion block in a T-shaped block mode, after the limiting pin is arranged in the limiting pin holes at the two ends of the limiting block, the side wall of the limiting pin is abutted against the inner diameter and the outer diameter of the workpiece, and the workpiece is locked on the inner diameter and the outer diameter through a tightening screw arranged on the limiting pin in a penetrating mode;

furthermore, the clamping jaws and the clamping mechanisms of the positioning mechanism on the rotary table can also be arranged in a multi-equal-division manner, the number of clamping points on the rotary table is in direct proportion to the positioning precision of the product, and the deformation of the product is reduced; otherwise, the product deformability is increased.

Preferably, the positioning mechanism comprises 4 positioning points, namely 4 clamping jaws;

the number of the clamping mechanisms is 4; 4 sets of clamping mechanism and 4 clamping jaws crisscross the distribution on the revolving stage, every adjacent 1 clamping jaw and 1 set of clamping mechanism between the contained angle be 45 degrees, be eight partition settings promptly on the revolving stage.

The working process and the working principle of the clamping device are as follows:

fixing a cushion block on the rotary table by using a countersunk head screw, fixing a limiting block on the cushion block, placing a retainer on the cushion block, screwing a clamping jaw to align and center the workpiece, and screwing a screw to clamp the inner diameter and the outer diameter of the workpiece.

The workpiece alignment and centering are realized by adjusting the sliding of the clamping jaw on the rotary table, so that the inner diameter of the workpiece is abutted to the outer side wall of the second step of the clamping jaw.

The utility model has the beneficial effects that: the positioning mechanism and the clamping mechanism are matched for use to position and clamp the workpiece,

in the processing process, the tightening force of the screw tightened by the clamping mechanism is neutralized with the deformation force generated in the processing process, so that the product meets the requirement of roundness.

Drawings

Fig. 1 is a structural view of the utility model.

Fig. 2 is a diagram of the stopper block of fig. 1.

In the figure, 1, a turntable; 2. cushion blocks; 3. a limiting block; 4. a clamping jaw; 5. a workpiece; 6. and (5) tightening the screw.

Detailed Description

The utility model is further described below with reference to the accompanying drawings. It is to be understood that the described embodiments are merely exemplary of the utility model, and not restrictive of the full scope of the utility model.

As shown in fig. 1, a clamping device for processing a retainer comprises: the device comprises a rotary table 1, a positioning mechanism, a clamping mechanism and a workpiece 5; the top end of the rotary table 1 is equally divided at equal angles from the center to the edge of the rotary table 1, and a plurality of positioning points of the positioning mechanism and a plurality of clamping points of the clamping mechanism are formed at the equally divided positions; a plurality of positioning points of the positioning mechanism and a plurality of clamping points of the clamping mechanism are distributed on the rotary table 1 in a staggered manner; the workpiece 5 is centered by the positioning mechanism and clamped by the clamping mechanism to realize clamping;

the positioning mechanism forms a plurality of positioning points on the rotary table 1 in a sliding way through the clamping jaw 4, and the clamping jaw 4 can move towards the center or the edge of the rotary table 1 on the sliding way of the rotary table 1, so that the adjusting function is realized, and the workpiece 5 is aligned and centered;

the clamping jaw 4 is connected with the rotary table 1 in a T-shaped slide way structure, a T-shaped block is arranged on the lower bottom surface of the clamping jaw 4, a T-shaped groove is formed in the rotary table 1 corresponding to the T-shaped block of the clamping jaw 4 in position, and the T-shaped groove forms a slide way of the T-shaped block to enable the T-shaped block to slide in the slide way;

the clamping jaw 4 is of a two-stage step structure and is provided with a first step and a second step from bottom to top, and when the clamping jaw is used, the inner diameter of the workpiece 5 is abutted to the outer side wall of the second step;

in order to avoid the collision damage caused by the contact of the workpiece 5 and the clamping jaw 4, the outer side wall and the inner side wall of the second step of the clamping jaw are respectively provided with a friction pad;

the inner side wall of the second step of the clamping jaw 4 faces the center direction of the rotary table 1, and the outer side wall of the second step of the clamping jaw 4 faces the edge direction of the rotary table 1;

the clamping mechanism comprises: the cushion block 2, the limiting block 3, the tightening screw 6 and the countersunk head screw; the bottom of the cushion block 2 is provided with a convex block, the rotary table 1 corresponding to the convex block is provided with a groove matched with the convex block, the cushion block 2 is embedded in the groove through the convex block and is connected with the rotary table, so that the cushion block 2 can slide in the groove, and the cushion block 2 can be adjusted according to different diameters of workpieces; a screw hole is formed in the cushion block 2, the cushion block 2 is fixed on the rotary table 1 through a countersunk screw, a limiting block 3 is fixedly arranged on one side of the cushion block 2, limiting pin holes are respectively formed in two ends of the limiting block 3, and limiting pins are arranged in the limiting pin holes; a workpiece 5 is placed on the cushion block 2, limiting pins at two ends of the limiting block are respectively arranged on the inner diameter and the outer diameter of the workpiece 5, tightening screws 6 are arranged at the upper parts of the limiting pins, and the inner diameter and the outer diameter of the workpiece 5 are respectively clamped by adjusting the tightening screws 6;

the limiting block 3 is fixed on the side wall of the cushion block 2 in a T-shaped block mode, after limiting pins are arranged in limiting pin holes at two ends of the limiting block 3, the side wall of each limiting pin is abutted against the inner diameter and the outer diameter of the workpiece 5, and the workpiece 5 is locked on the inner diameter and the outer diameter through a tightening screw 6 which is arranged on each limiting pin in a penetrating mode;

in this embodiment, the positioning mechanism includes 4 positioning points, that is, 4 clamping jaws 4;

the number of the clamping mechanisms is 4; 4 sets of clamping mechanism and 4 clamping jaws 4 distribute on revolving stage 1 in a staggered manner, and every adjacent 1 clamping jaw 4 is 45 degrees with the contained angle between 1 set of clamping mechanism, and be eight equant settings promptly on revolving stage 1.

By adopting the structure, the cushion block 2 is fixed on the rotary table 1 by using a countersunk head screw, the limit block 3 is fixed on the cushion block 2, the retainer is placed on the cushion block 2, the clamping jaw 4 is screwed to align and center the workpiece, and then the screw 6 is screwed to clamp the inner diameter and the outer diameter of the workpiece 5.

The above description is only for the preferred embodiment of the present invention, but the scope of the present invention is not limited thereto, and any person skilled in the art should be considered to be within the technical scope of the present invention, and equivalent alternatives or modifications according to the technical solution of the present invention and the inventive concept thereof should be covered by the scope of the present invention.

Claims

1. The utility model provides a clamping device is used in processing of holder which characterized in that includes: the device comprises a rotary table, a positioning mechanism, a clamping mechanism and a workpiece; the top end of the rotary table is equally divided at equal angles from the center to the edge of the rotary table, and a plurality of positioning points of the positioning mechanism and a plurality of clamping points of the clamping mechanism are formed at the equally divided positions; a plurality of positioning points of the positioning mechanism and a plurality of clamping points of the clamping mechanism are distributed on the rotary table in a staggered manner; the workpiece is centered by the positioning mechanism and clamped by the clamping mechanism to realize clamping.

2. The clamping device for machining the retainer according to claim 1, wherein the clamping device comprises: the positioning mechanism is formed by a plurality of positioning points on the turntable in a sliding way through the clamping jaw.

3. The clamping device for machining the retainer according to claim 2, wherein the clamping device comprises: the clamping jaw is connected with the rotary table through a T-shaped slide way structure, a T-shaped block is arranged on the lower bottom surface of the clamping jaw, a T-shaped groove is formed in the rotary table corresponding to the position of the T-shaped block of the clamping jaw, and the T-shaped groove forms a slide way of the T-shaped block, so that the T-shaped block slides in the slide way.

4. The clamping device for machining the retainer according to claim 3, wherein the clamping device comprises: the clamping jaw be the second grade stair structure, from supreme first step and the second step of being down, during the use, the work piece internal diameter offsets with the lateral wall of second step.

5. The clamping device for machining the retainer according to claim 4, wherein the clamping device comprises: and friction pads are respectively arranged on the outer side wall and the inner side wall of the second step of the clamping jaw.

6. The clamping device for machining the retainer according to claim 4, wherein the clamping device comprises: the inner side wall of the second step of the clamping jaw faces the center direction of the rotary table, and the outer side wall of the second step of the clamping jaw faces the edge direction of the rotary table.

7. The clamping device for machining the retainer according to any one of claims 1 to 6, wherein: the clamping mechanism comprises: cushion blocks, limiting blocks, tightening screws and countersunk screws; the bottom of the cushion block is provided with a convex block, the rotary table corresponding to the convex block is provided with a groove matched with the convex block, and the cushion block is embedded in the groove through the convex block and connected with the rotary table; the cushion block is provided with a screw hole and is fixed on the rotary table through a countersunk screw, one side of the cushion block is fixedly provided with a limiting block, two ends of the limiting block are respectively provided with a limiting pin hole, and a limiting pin is arranged in the limiting pin hole; the workpiece is placed on the cushion block, the limiting pins at two ends of the limiting block are respectively arranged on the inner diameter and the outer diameter of the workpiece, the upper portion of the limiting pin is provided with a tightening screw, and the workpiece is respectively clamped on the inner diameter and the outer diameter by adjusting the tightening screw.

8. The clamping device for machining the retainer according to claim 7, wherein the clamping device comprises: the limiting block is fixed on the side wall of the cushion block in a T-shaped block mode, after the limiting pin is installed in the limiting pin holes at the two ends of the limiting block, the side wall of the limiting pin is abutted against the inner diameter and the outer diameter of the workpiece, and the workpiece is locked by the inner diameter and the outer diameter of the workpiece through the tightening screw arranged on the limiting pin in a penetrating mode.

9. The clamping device for machining the retainer according to claim 7, wherein the clamping device comprises: the clamping jaw and the clamping mechanism of the positioning mechanism on the rotary table are arranged in a multi-equal-division mode.

10. The clamping device for machining the retainer according to claim 9, wherein: the number of the clamping mechanisms is 4; 4 sets of clamping mechanism and 4 clamping jaws crisscross the distribution on the revolving stage, every adjacent 1 clamping jaw and 1 set of clamping mechanism between the contained angle be 45 degrees, be eight partition settings promptly on the revolving stage.