High-precision machining method of complex curved gear

Abstract

The application belongs to the technical field of gear precision machining, and particularly relates to a high-precision machining method for a complex curved gear, which comprises the following steps: obtaining a three-dimensional model of the gear and planning an initial machining path; predicting a tooth profile error based on the path and performing real-time dynamic compensation in machining; predicting a heat treatment deformation trend based on the compensated motion track and real-time data; adjusting heat treatment process parameters according to the predicted deformation trend; detecting the final state of the gear after heat treatment, and updating the error prediction and compensation model according to the detection result. The application associates the real-time error compensation of the machining process with the prediction control of the heat treatment deformation and forms a closed loop, thereby overcoming the problem that the machining precision and the structural stability after heat treatment are difficult to be cooperatively ensured in the prior art, and realizing the unified manufacturing of the complex curved gear with high precision and high reliability.

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