Automatic tolerance adjusting device

Abstract

The invention provides an automatic tolerance adjusting device. The device comprises an upper housing, a positioning stud, a locking spacer and an elastic adjusting sheet, wherein the upper housing isof a hollow chamber structure, and an inner chamber of the upper housing is divided into a mounting hole and a first inner chamber through a baffle plate; a protruded outer edge is arranged at the opening end of the mounting hole; positioning ribs are arranged on the outer wall of the upper housing; the elastic adjusting sheet is arranged on the outer surfaces of the positioning ribs; a boss which fits the first inner chamber is arranged in the middle part of the positioning stud, and the boss is instead into the first inner chamber; the upper housing is fixed to the positioning stud in a thread connection manner; and the locking spacer is arranged in the first inner chamber and can freely move in a shaft hole clearance which is formed between the end surface of the boss and the baffle plate of the upper housing. According to the device, the dynamic energy through which a bolt rotates and forwards moves is fully utilized to automatically remove tolerance accumulation, thus accurate positioning and assembling can be quickly effectively realized, and the defects of a plurality of processes, high cost, high difficulty in operation technology and low working efficiency in the prior art can be solved.

Description

technical field [0001] The present invention relates to the technical field of tolerance adjustment devices, in particular to an automatic tolerance adjustment device. Background technique [0002] With the rapid development of the automobile industry, the requirements for parts assembly are getting higher and higher. In the assembly process involving three or more parts, the assembly positioning and final matching effect cannot meet the requirements due to the accumulation of manufacturing and assembly tolerances. The current solution is: 1. Reduce the manufacturing tolerance, but this will lead to a sharp increase in cost, and at the same time it cannot effectively eliminate the accumulated tolerance to achieve positioning and matching expectations; 2. Use adjusting nuts, but manual adjustment is used during the assembly process. The experience and ability of the operating staff is extremely demanding, and the work efficiency is greatly reduced at the same time. Contents...

AI Technical Summary

Problems solved by technology

[0003] Aiming at the defects in the prior art, the object of the present invention is to provide an automatic tolerance adjustment device. The present invention makes full use of the kinetic energy of the bolt rotation and advancement, can automatically eliminate the accumulation of tolerances, realize fast and effective precise positioning and assembly, and solve the existing problems. There are many processes in the technology, the cost is high, the operation technology is difficult, and the work efficiency is low.

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