CN-122007945-A - Universal joint clamping device

CN122007945ACN 122007945 ACN122007945 ACN 122007945ACN-122007945-A

Abstract

The invention relates to the technical field of universal joint processing, in particular to a universal joint clamping device which comprises a positioning table, a V-shaped groove arranged on the positioning table and used for placing a universal joint fork, and a limiting rod which is slidably arranged on the V-shaped groove through a sliding device and used for abutting against a universal joint cross shaft, wherein the positioning table is also provided with a pushing device for pushing the universal joint to abut against the limiting rod, and the positioning table is also provided with a pressing device for pressing the universal joint.

Inventors

WU QINGCHI
WU QINGHAI
YOU QIANG

Assignees

晋江市源德机械制造有限公司

Dates

Publication Date: 20260512
Application Date: 20260416

Claims (6)

1. The universal joint clamping device is characterized by comprising a positioning table, a V-shaped groove arranged on the positioning table and used for placing a universal joint fork, and a limiting rod which is slidably arranged on the V-shaped groove through a sliding device and used for abutting against a universal joint cross shaft, wherein the positioning table is also provided with a pushing device for pushing the universal joint to abut against the limiting rod, and the positioning table is also provided with a pressing device for pressing the universal joint; The compressing device comprises two first telescopic driving pieces vertically arranged on two sides of the positioning table, a compressing plate arranged on a telescopic rod of the first telescopic driving pieces, a groove arranged on the compressing plate, and a first rotating roller rotatably arranged in the groove, wherein a flexible contact device is arranged on the first rotating roller; The flexible contact device comprises an elastic sleeve sleeved on the first rotating roller, a plurality of groups of spring groups arranged between the elastic sleeve and the first rotating roller along the axial direction of the rotating roller, wherein the groups of spring groups are unevenly distributed along the axial direction of the first rotating roller, the rigidity of the spring groups positioned in the middle of the first rotating roller is smaller than that of the spring groups positioned at the two sides of the first rotating roller, the distribution density of the spring groups positioned in the middle of the first rotating roller is smaller than that of the spring groups positioned at the two sides of the first rotating roller, and limit stops for preventing the elastic sleeve from axially moving are arranged at the two ends of the first rotating roller; the spring group comprises a plurality of springs uniformly distributed between the elastic sleeve and the rotating roller along the circumferential direction of the rotating roller, wherein the rotating roller is also provided with an anti-deflection groove corresponding to the springs, and one end of each spring is connected with the elastic sleeve while the other end of each spring is inserted into the anti-deflection groove; The surface of the elastic sleeve is also provided with a plurality of guide ring strips parallel to the axial direction of the universal joint, and the surface of the elastic sleeve is also provided with a plurality of deformation ring grooves parallel to the axial direction of the universal joint.
2. The universal joint clamping device according to claim 1, wherein the pressing plate is provided with a guide post, and the positioning table is further provided with a guide hole matched with the guide post.
3. The universal joint clamping device according to claim 1, wherein the sliding device comprises a supporting plate arranged on the positioning table, a positioning sleeve penetrating through the supporting plate, a first adjusting thread arranged in the positioning sleeve, and a second adjusting thread arranged on the limiting rod, and a first protective sleeve is further arranged on one end of the limiting rod, which is used for abutting against the universal joint cross shaft.
4. The universal joint clamping device according to claim 1, wherein the pushing device comprises a positioning plate arranged on the positioning table, a second telescopic driving piece arranged on the positioning plate, a pushing block arranged on the telescopic rod of the second telescopic driving piece, and a second protective sleeve arranged on the pushing block, wherein the telescopic rod of the second telescopic driving piece penetrates out of the positioning plate.
5. The universal joint clamping device according to claim 1, wherein a plurality of second rotating rollers are uniformly distributed on the inner walls of the two sides of the V-shaped groove, and a third protective sleeve is further arranged on the second rotating rollers.
6. The universal joint clamping device according to claim 1, wherein the positioning table is further provided with a sinking groove at the V-shaped groove, pneumatic clamping fingers are arranged in the sinking groove, and clamping plates are arranged on two clamping fingers of the pneumatic clamping fingers.

Description

Universal joint clamping device Technical Field The invention relates to the technical field of universal joint machining, in particular to a universal joint clamping device. Background The universal joint is a key component in a transmission system, and has the function of allowing the angle between two connected shafts to change, and the universal joint needs to be accurately positioned and clamped during the processing, detection or maintenance process, such as drilling or riveting; Particularly, in the riveting process, the universal joint cross shaft and the universal joint fork need to be accurately fixed to ensure accurate riveting positions and stable riveting quality, so that most universal joints are positioned by manual centering during riveting, but the time is required to visually centering and stabilizing both hands before each riveting, the average clamping time of a single workpiece is about 15-30 seconds, the accumulated time loss is huge for mass production, and one labor is required to be completely occupied. Disclosure of Invention Accordingly, in view of the above-mentioned problems, the present invention provides a universal joint clamping device. In order to achieve the aim, the technical scheme of the invention provides a universal joint clamping device, which comprises a positioning table, a V-shaped groove arranged on the positioning table and used for placing a universal joint fork, and a limiting rod which is slidably arranged on the V-shaped groove through a sliding device and used for abutting against a universal joint cross shaft, wherein the positioning table is also provided with a pushing device for pushing the universal joint to abut against the limiting rod, and the positioning table is also provided with a pressing device for pressing the universal joint; The compressing device comprises two first telescopic driving pieces vertically arranged on two sides of the positioning table, a compressing plate arranged on a telescopic rod of the first telescopic driving pieces, a groove arranged on the compressing plate, and a first rotating roller rotatably arranged in the groove, wherein a flexible contact device is arranged on the first rotating roller; The flexible contact device comprises an elastic sleeve sleeved on the first rotating roller, a plurality of groups of spring groups arranged between the elastic sleeve and the first rotating roller along the axial direction of the rotating roller, wherein the groups of spring groups are unevenly distributed along the axial direction of the first rotating roller, the rigidity of the spring groups positioned in the middle of the first rotating roller is smaller than that of the spring groups positioned at the two sides of the first rotating roller, the distribution density of the spring groups positioned in the middle of the first rotating roller is smaller than that of the spring groups positioned at the two sides of the first rotating roller, and limit stops for preventing the elastic sleeve from axially moving are arranged at the two ends of the first rotating roller; the spring group comprises a plurality of springs uniformly distributed between the elastic sleeve and the rotating roller along the circumferential direction of the rotating roller, wherein the rotating roller is also provided with an anti-deflection groove corresponding to the springs, and one end of each spring is connected with the elastic sleeve while the other end of each spring is inserted into the anti-deflection groove; The surface of the elastic sleeve is also provided with a plurality of guide ring strips parallel to the axial direction of the universal joint, and the surface of the elastic sleeve is also provided with a plurality of deformation ring grooves parallel to the axial direction of the universal joint. The improved structure is characterized in that the compacting plate is provided with a guide post, and the positioning table is also provided with a guide hole matched with the guide post. The sliding device comprises a supporting plate arranged on a positioning table, a positioning sleeve penetrating through the supporting plate, a first adjusting thread arranged in the positioning sleeve, and a second adjusting thread arranged on a limiting rod, wherein a first protective sleeve is further arranged at one end of the limiting rod, which is used for abutting against the universal joint cross shaft. The pushing device comprises a positioning plate arranged on the positioning table, a second telescopic driving piece arranged on the positioning plate, a pushing block arranged on the telescopic rod of the second telescopic driving piece, and a second protective sleeve arranged on the pushing block, wherein the telescopic rod of the second telescopic driving piece penetrates out of the positioning plate. The V-shaped groove is characterized in that a plurality of second rotating rollers are uniformly distributed on the inner walls of the two sides