Base part machining method and tool

Abstract

The invention relates to a base part machining method and clamp. The method comprises the following steps: (1) roughly machining a base part in multiple feeding amounts, and removing large machining allowance; (2) carrying out first vacuum heat treatment; (3) fixing and aligning a machine tool faceplate, and carrying out semi-finishing on the base part in multiple feeding amounts by controlling the rotating speed, the cutting depth and the feeding amount of a machine tool; (4) carrying out second-time deep cooling and heating treatment; (5) carrying out clamping and positioning by adopting a grinding clamp, and then the size requirement for finishing of the base part is met through a grinding machining method; (6) placing the processed base part connected with a gyroscope body on a specialmeasuring tool to measure the size and the position of holes, and judging whether the size and the position of the holes meet technical requirements or not; and (7) if the measurement shows that thetechnical requirements are not met, carrying out finishing on the location degree and the size of the holes connected with a gyro frame, and returning to the step (6) after finishing, and if the measurement shows that the technical requirements are met, turning to the next procedure. According to the method, the machining precision is guaranteed, the pressure damage and deformation of the part areprevented, the machining and measuring efficiency is improved, and the cost is saved.

Description

technical field [0001] The invention relates to a part processing method, in particular to a method for processing base parts and tooling thereof. It belongs to the field of mechanical processing. Background technique [0002] At present, the base parts made of titanium alloy materials are relatively difficult to process. Due to thin walls and poor rigidity, they are easy to deform during processing. The wall thickness is 1.5mm, and the parts are irregular shapes. mm, the positioning outer circle of the part is φ239f7, the size of the 17 holes connecting the end face of the positioning outer circle and the gyro body is φ3.5H6 and the position tolerance is ±3', the verticality is 0.02mm, and the flatness is 0.02mm, especially in cutting processing When the outer circle of the part positioning is φ239f7, due to the deformation of the base surface, the size of the processing surface of the part expands outward, and vibration occurs to produce convex and concave distortion defo...

AI Technical Summary

Problems solved by technology

[0003] The object of the present invention is to provide a method for processing base parts and its tooling. The method adopts vacuum thermal processing and cryogenic process to remove the processing stress of parts under a certain degree of vacuum, and the cryogenic process continues to eliminate processing stress. Stress, use the grinding method to finish the base surface of the part, make a forming measuring tool to ensure the measurement accuracy and efficiency of the part and the gyro body, and ensure the processing dimensional accuracy requirements of the part and the accuracy of the measurement. The grinding fixture used in this method is effective It prevents the difficulty that the part material cannot be sucked, avoids the crushing and deformation of the part clamping, solves the problem that the base part is easily deformed during processing due to thin wall and poor rigidity, and realizes the rapid clamping of the part; at the same time, After the parts are processed, the special measuring tool is used to insert the pin shaft directly into the processed hole, and can be measured directly on the base, which avoids waiting in the three-coordinate measuring instrument and cumbersome point measurement, thereby improving the measurement of the base parts Efficiency and Position Dimensional Accuracy

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