Bushing closing-up processing method

Abstract

The invention provides a bushing closing-up processing method in which one-step closing-up formation is changed into tri-closing up formation. The bushing closing-up processing method is characterized by mainly comprising three steps of pre-deformation, re-deformation and final deformation. The bushing closing-up processing method is simple and feasible, has good practicability and effectively solves the problem that a lock pin is tightly squeezed by a bushing.

Description

technical field [0001] The invention relates to the processing of a small force-bearing device, in particular to a method for processing the closing of a small force-bearing lock bush. Background technique [0002] The connection between the aircraft electronic cabin cover and the fuselage mainly adopts a small load-bearing lock with a closing bush. One of the main components of the load-bearing lock is the lock body structure, such as figure 1 As shown; during assembly, it is required to process the end of the bushing 1 ( figure 2 middle R), so that the spring 3 is enclosed in the bushing 1, and the assembly of the lock body is completed; now, rollers are generally used on lathes for closing processing. It is made of soft Cr17Mh9Ni4N stainless steel material, and the wall thickness of the tail end is relatively thin, so it is easy to squeeze the lock pin 2 to death when the closing is formed, causing the bushing 1 to be scrapped and increasing the manufacturing cost. Co...

AI Technical Summary

Problems solved by technology

[0003] The purpose of the present invention is to propose a processing method for bushing closing, changing the one-time closing forming to three-time closing forming, so as to solve the problem that the bushing is easy to squeeze the lock pin to death in the traditional method

[0005] The beneficial effect of the present invention is: simple and easy to implement, good practicability; effectively solves the problem that the bush squeezes the locking pin to death

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