Gear machining surface topography analytical method based on gear machining simulation model

Abstract

The invention discloses a gear machining surface topography analytical method based on a gear machining simulation model. The gear machining surface topography analytical method is characterized by establishing the simulation model based on the gear grinding machining, obtaining an ordinary process of processing a gear surface topography simulation model through deduction, substituting dynamic information of an axis of movement collected by simulation or a sensor installed inside a machine tool during the processing of gear grinding, and obtaining the simulated gear grinding processing surface topography. The gear machining surface topography analytical method based on the gear machining simulation model is used for predication of gear grinding surface quality and is further used for quantitative evaluation of influence of the axis of movement on the gear grinding surface quality, and tracing of the errors of gear working accuracy and surface waviness and roughness and provides a theoretical basis and an implementation method of gear grinding surface quality and fault diagnosis efficiency of a gear grinder.

Description

technical field [0001] The invention belongs to the technical field of gear processing surface topography analysis, and relates to a gear processing surface topography analysis method based on a gear processing simulation model. Background technique [0002] The surface quality of the gear has a significant impact on the transmission performance of the gear, such as load capacity and transmission noise. Surface quality can be divided into two aspects: surface integrity and surface morphology. The International Academy of Production Engineering (CIRP) has conducted a lot of research on surface quality issues, established a special research working group, and held regular international meetings to discuss qualitative and quantitative predictions. Simulation model for metal cutting performance. [0003] As for the surface topography modeling of grinding process, the current research mostly adopts the kinematics model based on the change of physical action during the machining ...

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Problems solved by technology

The problems in these studies are: 1) The gear grinding process is not directly aimed at, and the processing objects are mostly flat or cylindrical surfaces, the shape of the grinding wheel is simple, and the kinematic relationship between the grinding wheel and the workpiece is relatively simple

In gear grinding, the shape of the grinding wheel and the mechanism of machining motion are much more complicated.

2) Most kinematic models only focus on the simulation of the ideal grinding process, ignoring the influence of unavoidable dynamic factors in the grinding process, such as bed vibration and deformation during the grinding process, grinding wheel vibration, rotating shaft Torsional fluctuations and synchronous motion errors, etc.

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