A method for lapping and polishing flexible joints with thin neck abrasive flow

Abstract

The invention discloses a flexible joint thin neck abrasive flow lapping and polishing method and belongs to the technical field of lapping and polishing of mechanical machining. The flexible joint thin neck abrasive flow lapping and polishing method aims at solving the problem that lapping of an existing flexible joint mainly depends on a common machine tool, a horn mouth is easily produced and machining effect and height depends on experiences and attitudes of workers. The flexible joint thin neck abrasive flow lapping and polishing method comprises the steps of 1 arranging fluid abrasive machining liquid in a container trough and inserting a lapping and polishing head into a deep hole formed in a machined workpiece, 2 starting a peristaltic pump, delivering fluid abrasive machining liquid into a through hole formed in the lapping and polishing head and then enabling the fluid abrasive machining liquid to flow into a gap; 3 starting an electric motor, driving the fluid abrasive machining liquid to perform irregular rotary flowing in the deep hole formed in the machined workpiece; 4 shutting down the electric motor and the peristaltic pump and taking down and cleaning the machined workpiece. The flexible joint thin neck abrasive flow lapping and polishing method can be used for non-contact machining of a flexible joint workpiece, and an affected layer can be decreased or even can be removed to improve the surface quality of the hole wall.

Description

technical field [0001] The invention belongs to the technical field of grinding and polishing processing of mechanical processing. Background technique [0002] The emergence of inertial guidance and inertial navigation systems has put forward high requirements for the gyroscopes used in them, because improving the stability of gyroscope drift is of decisive significance to ensure the accuracy of navigation. The dynamically tuned gyroscope is a two-degree-of-freedom gyroscope that uses a flexible support to flexibly connect the gyro rotor and the gyro motor, and uses the dynamic effect generated by itself to balance. The flexible joint is the key component of the dynamic tuning gyroscope, which is directly related to the performance of the gyroscope. [0003] The flexible joint is made of maraging steel 3J33. The four thin necks formed by four pairs of holes in each flexible joint are formed by boring. The thickness of each thin neck is the same as the distance between a pa...

AI Technical Summary

Problems solved by technology

[0005] The purpose of the present invention is to provide a flexible joint thin neck abrasive flow polishing method, in order to solve the problem that the finishing grinding of the existing flexible joint mainly relies on ordinary machine tool processing, and there are easy to appear bell mouth and the processing effect is highly dependent on the experience of workers issues with attitude

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