A pressing mechanism applied to non-screwed structure

Abstract

A pressing mechanism applied to a non-screw-joint structure is a pressing mechanism which is applied to the connecting process of the non-screw-joint structure and can quantitatively evaluate the pressing degree. The pressing degree of an inner core and an outer shell of the non-screw-joint structure has significant effects on the performance indexes of multiple products; and in order to quantitatively evaluate the pressing degree of the inner core and the outer shell, the pressing force of the inner core and the outer shell is converted into the tightening torque between an outer shell fixingdevice and a pressing cap, and therefore the pressing force between the inner core and the outer shell is fixedly controlled. In order to improve the efficiency of the connecting process, two bearings are additionally arranged on a traditional mechanism so as to increase two rotating freedom degrees, the number of times of assembling of the pressing mechanism in the connecting process can be reduced, and the consistency of the connecting process is improved.

Description

technical field [0001] The invention belongs to the fine assembly field, and more specifically relates to a pressing mechanism applied to a non-screwed structure. Background technique [0002] With the increasing requirements for cleanliness and excess in fine chemical industry, chip industry, electronic information, aerospace and other technologies, the threaded connection mechanism is prone to excess risk and the risk problem that is difficult to assess has become increasingly prominent. Therefore, the threadless connection The method has become increasingly popular in the above industrial fields. Different from the traditional threaded connection through the threaded connection between the outer thread of the inner core and the inner thread of the outer shell, the inner core and outer shell of the non-threaded connection are both smooth cylindrical surfaces. After the inner core is pressed into the outer shell, it is passed Welding or bonding the gap between the inner co...

AI Technical Summary

Problems solved by technology

[0003] Non-threaded joints are usually welded by electron beam welding, which can effectively avoid the risk of excess threaded joints, but brings new assembly challenges

The assembly method without threaded connection is difficult to control the degree of compression during the assembly process, and the degree of compression has a more obvious impact on the performance of many products

In addition to the above defects, the compression degree of the assembly method without threaded connection is easy to change during the production process, resulting in changes in the performance indicators of the product during the production process, which has a negative impact on product quality control

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