Research On Geometric Simulation Of Spiral Bevel Gear Processing System

The geometric simulation of the machining system is an important aspect of the current spiral bevel gear machining technology.By processing the spiral bevel gear in the virtual environment instead of the actual adjustment and trial cutting,it not only preliminarily verifies the rationality of the adjustment parameters of the machine tool,but also Analytical work such as contact analysis(TCA)and load contact analysis(LTCA)provides accurate tooth surface data models,eliminating the need for extensive adjustment and trial cutting in traditional machining methods,greatly reducing the production cycle of spiral bevel gears and Production costs meet the low-cost,short-term and high-quality development needs of modern manufacturing.In this paper,the spiral bevel gear machining system of a five-axis CNC machine tool is taken as the research object.The geometric simulation of the spiral bevel gear machining system is studied by tools such as MATLAB and SolidWorks.The main research contents of this paper are as follows:(1)Through the virtual production wheel,the relative position of the machining tool and the workpiece,the machine coordinate system,the cradle coordinate system,the tool coordinate system,the workpiece coordinate system and the auxiliary coordinate system are established,and the spiral bevel gear wheel is derived according to the gear meshing equation.Tooth surface equation.(2)Through the relative relationship between the relative velocity of the production wheel and the tooth blank during the machining of the spiral bevel gear,the yoke angle,the tool rotation angle and the cutting point to the tool tip distance are derived.The mathematical relationship between the five-axis CNC machine tool machining system of the spiral bevel gear was established.(3)Using SolidWorks to carry out three-dimensional modeling of spiral bevel gear fiveaxis CNC machine tools,simplify and retain key structure into Simulink,and create corresponding control modules to simulate according to the mathematical model of machining system and the motion law of each axis of spiral bevel gear CNC machine tool.Actual machining,SolidWorks & Simulink co-simulation.(4)Due to the high openness of Simulink,it is possible to add an error module to the drive module of each axis during the geometric simulation process,virtually machining the spiral bevel gear tooth surface,and obtaining the simulated tooth surface with error by geometric simulation,and It compares with the theoretical design tooth surface,studies the influence of various geometric errors on the machining of the simulated tooth surface.The spiral bevel gear simulation processing system with error is established,which lays a foundation for error compensation and improved machining accuracy of the machine tool in the future,and provides data support for the design and manufacture of spiral bevel gear processing machine.