Control method of grinding distortion of outer diameter of guide barrel of auto bank unit of helicopter

Abstract

The invention belongs to the mechanical technical field and provides a control method of grinding distortion of the outer diameter of a guide barrel of an auto bank unit of a helicopter. The control method comprises the following steps of measuring a distortion high-low point area on a rough machining surface of a part and manually polishing a high point area and a transitional area correspondingto a positioning surface of the part; and adjusting a clamping force of a tightening bolt in the positioning hole of the machined part to improve the clamping distortion of the part. In the machiningprocess, the method guarantees that the precision of the positioning surface of a thin-walled sprayed part meets a 100%grinding demand and increases the contact area of the part and a tool and reducesthe clamping distortion of the part by controlling the clamping force in the distortion area, and further has a self-remedy improving function to grinding distortion of the part to a certain extent.The machining precision and the percent of pass of the part are improved.

Description

technical field [0001] The invention belongs to the technical field of machinery, and in particular relates to a method for controlling the grinding deformation of the outer diameter of a guide cylinder of a helicopter automatic tilter. Background technique [0002] With the rapid development of my country's aviation industry, especially in the key manufacturing technology of advanced aero-engines, the performance requirements for reducing the weight of the engine, improving the kinetic energy of the engine, and ensuring the safety and reliability of the engine are also getting higher and higher. Thin-walled parts have been widely used in various industrial sectors because of their light weight and compact structure, but the processing of thin-walled parts is more difficult. The reason is that thin-walled parts have poor rigidity and weak strength, and are easily deformed during processing, which makes it difficult to guarantee the processing quality of parts. The automatic...

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Problems solved by technology

[0003] The purpose of the present invention is to provide a control method for the grinding deformation of the outer diameter of the guide cylinder of the automatic tilter of the helicopter, which can reduce the deformation of the parts during processing, and process products with a high pass rate, so as to solve the problem that is extremely difficult in the current processing process. The technical problem of low product qualification rate caused by deformation

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