Press-fitting device for shock absorber working cylinder and compression valve

Abstract

The invention belongs to the technical field of automobile shock absorber assembly and particularly relates to a press-fitting device for a shock absorber working cylinder and a compression valve. Theupper end surface of a device frame is provided with a press-fitting assembly and a positioning hole, the press-fitting assembly includes four guide columns, a guide plate, and a bearing plate, and the guide plate is slidably arranged on the four guide columns; the bearing plate is fixedly connected with the upper ends of the four guide columns, a telescopic mechanism is arranged on the bearing plate, the lower end of the telescopic mechanism is fixedly connected with the upper end surface of the guide plate, the lower end surface of the guide plate is fixedly connected with a pressure rod, and a pressure head is arranged at the lower end of the pressure rod; and a base is arranged in the positioning hole, the upper end surface of the base is provided with a positioning protrusion, and the central axis of the pressure head coincides with the central axis of the positioning protrusion. Iron filings produced during the press-fitting process fall automatically from the lower end of the working cylinder and are not brought into the interior of a compression valve assembly, and the cleanliness of a product is increased.

Description

technical field [0001] The invention belongs to the technical field of automobile shock absorber assembly, and in particular relates to a press-fitting device for a shock absorber working cylinder and a compression valve. Background technique [0002] Shock absorber (Vibration Damper), the shock absorber is mainly used to suppress the shock when the spring rebounds after absorbing the shock and the impact from the road surface. When passing through uneven roads, although the shock-absorbing spring can filter the vibration of the road surface, the spring itself will reciprocate, and the shock absorber is used to suppress this spring jumping. Shock absorber is too soft, automobile body can hop up and down, shock absorber can bring too great resistance too forcedly, cloggy bedspring works normally. In the process of refitting the suspension system, hard shock absorbers should be matched with hard springs, and the hardness of the springs is closely related to the weight of the ...

AI Technical Summary

Problems solved by technology

[0004] During the use of the above two structures, it is necessary to first place the compression valve in the inner hole of the positioning plate, then place one of the end faces of the working cylinder on the bottom valve seat, adjust the position of the block to support the working cylinder, and keep the working cylinder Vertical, after adjusting the pressure of the press machine, start the press switch, the main shaft of the press machine moves downward to drive the upper pressure head downward and acts on the other end of the working cylinder, the working cylinder is pressed into the bottom valve seat, and the main shaft rises and leaves The working cylinder, after the press-fitting process is completed, the working cylinder is removed, but not only auxiliary structures are needed during the press-fitting process, such as a block to assist the working cylinder to maintain stability, but also the working cylinder and the bottom valve are under high-strength (0.3-0.6 MPa) pressure During the installation process, iron filings will be generated between the two structures, and the iron filings will fall directly on the bottom valve, and it is extremely difficult to clean up. The iron filings will be brought into the oil storage tank, and the cleanliness of individual parts will drop slightly. , will eventually lead to poor cleanliness of the shock absorber assembly, which will affect the performance of the shock absorber, and the structure is a one-piece structure. If the shock absorber needs to be repaired, the whole set needs to be replaced, and the later repair cost is high.

Images