Hobbing process parameter optimization method based on hobbing cutter spindle vibration response model

Abstract

The invention discloses a hobbing process parameter optimization method based on a hobbing cutter spindle vibration response model, which comprises the following steps of: analyzing the stress of a hobbing cutter spindle from the perspective of infinitesimal elements on the basis of the Euler beam theory and the mechanical bending deformation of materials, and establishing a hobbing cutter spindleacting force balance equation and a moment balance equation; obtaining a multivariate mathematical function relational expression of inherent frequency of each order of a hob main shaft and hob mainshaft vibration relative to each machining process parameter through solving, classifying hobbing process parameters, determining gear machining process parameters and hob main shaft process parameters, and finally optimizing the machining process process process parameters. According to the method, a mathematical function relational expression between the vibration quantity of the hob main shaftand each machining process parameter is established based on a vibration mechanism. The influence degree of the machining process parameters on hobbing is analyzed, the optimal machining process parameters are obtained, or the machining process parameter value range meeting the hobbing cutter main shaft precision requirement of the hobbing machine is obtained, and therefore the hobbing vibration amount is reduced, and the machining efficiency is improved.

Description

technical field [0001] The invention relates to the field of gear manufacturing, more specifically, a hobbing process parameter optimization method based on a hob spindle vibration response model. Background technique [0002] The processing parameters not only affect the processing efficiency, but also greatly affect the vibration of the hob spindle. Blindly considering the hobbing rate but ignoring the hobbing vibration will set unreasonable hobbing process parameters, which will cause the vibration of the hob spindle to increase, resulting in a decrease in the stability of the hobbing machine and the accuracy of gear hobbing. Therefore, it is very necessary for gear hobbing technicians to study the setting of gear hobbing process parameters to reduce the vibration of the hob spindle. [0003] The invention patent with the publication number CN104881530A "A Method for Hobbing Dry Cutting Based on Optimizing Process Parameters" optimizes the accumulated process examples an...

AI Technical Summary

Problems solved by technology

However, the above-mentioned inventions seldom consider the optimization of hobbing process parameters from the perspective of the hob spindle vibration principle

Moreover, the setting of the hobbing process parameters is mostly set by the craftsman with experience or by consulting relevant literature, which takes a lot of time and energy

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