Finite element analysis of gear shaft in feed box of lathe

In the machining process, each axis of C6136A lathe in the working process, due to the different stress conditions, the deformation of the axis is not uniform, which may be one of the reasons for the size error and shape error of the workpiece. Based on the finite element analysis method of C6136A lathe feed box gear shaft, this paper analyzes the deformation and stress of feed box gear shaft in the process of processing. According to the data obtained by finite element analysis, it can guide workers to reduce the processing error in the actual operation.

Finite element analysis can be divided into two stages, which are pre-processing and post-processing. The pre-processing is to establish the finite element model of the part to be analyzed, which is called modeling for short; then the element mesh of the part to be modeled is divided. The post-processing is to collect and analyze the data of the previous step, which can extract the information and understand the calculation results of the stress of each part.

Taking the step shaft of C6136A machine tool feed box gear shaft as an example, the geometric modeling is carried out by using UG software. The gear shaft is used to simplify the stress model and add constraints. The geometric model is divided according to tetrahedral element. The deformation and stress of C6136A machine tool feed box gear shaft are analyzed, so as to obtain the most accurate parameter guidance.

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