Planning And Analysis Of Milling Machining Trajectory Of Ball Cage Channel

The performance of the Birfield Ball-Joint determines the power and maneuverability of the vehicle to a certain extent.The size and distribution of contact stress in the process of transmission of power affect the working life of birfield constant velocity joint.This paper is aimed at the processing requirements of a cage channel in a manufacturing equipment company in Hebei Province.Given the dimension parameters required by the groove,the milling trajectory is determined by reverse analysis,and a computer aided analysis system for ball cage milling is developed.The main research contents of the thesis are as follows:1.According to the company's requirements for the production and processing of the cage channel,the layout of the machining process of the three-axis CNC milling machine is given.The influence of the geometrical parameters of the cage and the machining error on the contact stress is analyzed.2.According to the process of forming the space surface by the coarse and fine milling process of the cage,a mathematical model of the space surface is established.Based on the size parameters of the cage channel,the rough machining path is obtained by numerical solution,and the rough algorithm is applied by genetic algorithm.The machining trajectory is optimized to obtain the optimal trajectory,and the simulation is carried out by Master CAM software,which verifies the feasibility and effectiveness of this calculation method.3.Due to the different channel sizes of different types of the Birfield Ball-Joint,a computer-aided analysis system for ball cage milling has been developed,which includes a cage milling machining path generation module and the Birfield Ball-Joint.The main structural size parameter module and the three-dimensional model design module of the ball-cage constant velocity joint component,in order to obtain the spherical cage channel processing trajectory and the three-dimensional model of the Birfield Ball-Joint component by inputting the known parameters the goal of.4.The error source of TG-M100K three-axis CNC milling machine tool is analyzed,and its comprehensive motion error model is established.The optimal Latin hypercube test method is used to find the factors that have a great influence on the total error.Sensitive factors are used for error compensation to improve processing quality.