locking device

Abstract

The invention relates to a locking device, which is provided with a body, a retainer, a clamping group and a cover plate, and the body is provided with a set of holes, a piercing hole, a chamber and multiple first arc groove, the retainer is set in the chamber and is provided with a plurality of slots arranged at intervals in an annular shape and corresponding to the plurality of first arc-shaped slots, and each slot is provided with a rolling contact with one of the first arc-shaped slots. The grooves abut against the rolling column. The clamping group is arranged in the chamber and is provided with a plurality of clamping blocks. Each clamping block is a curved block and is axially recessed on the outer surface facing the retainer. A plurality of second arc-shaped grooves arranged continuously, the cover plate is fixedly combined with the main body, and the retainer and the clamping group are arranged between the main body and the cover plate, so as to provide an improved locking effect and Locking device for improved processing quality.

Description

technical field [0001] The invention relates to a locking device, in particular to a locking device which improves locking effect and processing quality. Background technique [0002] The existing locking device is used to provide the effect of locking or loosening the object, and the existing locking device is mainly through keyway clamping or frictional contact, etc., so as to lock the tool bar, bolt or nut and other components. Therefore, the existing locking devices include various types of locking knife structures or wrenches, among which the commonly used locking knife structures in the industry are mainly equipped with a locking knife seat, a needle roller seat and a fixed cover. The seat is fixedly combined with a lock tool holder through bolt locking, and then installed on a machine tool to lock a tool bar. The inner surface of the lock tool seat is provided with a plurality of grooves at intervals, and the needle roller The seat is set in the knife lock seat and i...

AI Technical Summary

Problems solved by technology

[0003] When the existing lock knife structure is in use, a knife rod is inserted into the knife lock seat, so that a plurality of roller needles on the needle roller seat are pushed outward by the circumferential surface of the knife bar, and respectively contact with the knife lock seat. Each of the grooves is against each other, so that each needle roller can not rotate between the knife rod and the corresponding groove, and the knife rod can be locked by the non-rotatable needle roller; however, the existing locking knife structure can pass through the above-mentioned structure The feature achieves the effect of locking the tool bar, but it can avoid damage to the tool bar due to excessive friction through the contact of each needle roller with the tool bar, but the abutment area of ​​each roller needle and the tool bar is limited (line contact), it will be relatively impossible to lock the knife rod firmly, and then the situation of the knife rod will shake, which will relatively affect the quality of the knife rod for processing. Therefore, the existing locking knife structure is sincere in structure and use. There is room for improvement

Images