Research On Tangential Tool Setting System Of MTX CNC Gear Hobbing Machine Based On OPC

With the development of high-tech technology,the CNC hobbing machine tool processing technology has also been rapidly improved.When the functions of each part of the CNC hobbing machine tool are fully enhanced,the problem of tool setting operation is exposed.The tool setting operation is the first step in the machining of the hobbing machine parts,and it is an important technology and process link in the CNC hobbing process.The accuracy of the tool directly affects the machining accuracy and efficiency of the CNC hobbing machine.The traditional manual tool setting method has long tool setting time,complicated process and unstable precision,resulting in low production efficiency.The automatic tool setting device with high efficiency and high precision mainly relies on import,the price is very expensive,and the imported products are difficult to adapt to domestic CNC hobbing machine equipment.In order to solve the above problems,based on OPC technology and hobbing processing principle,a tangential tool setting system based on OPC for MTX CNC gear hobbing machine is developed.This topic applies modern sensing technology,measurement and control technology,single chip technology and programming technology.The MTX CNC gear hobbing machine realizes the tangential alignment operation of the hobbing tool to improve the tangential tool setting accuracy and efficiency of the hobbing machine and increase the safety of the tangential tool setting.The main work of this project is divided into the following:1.The function and characteristics of the MTX numerical control system are studied.According to the MTX hobbing processing method and the hobbing processing principle,the tangential tool setting principle and its key technology applied to the MTX CNC gear hobbing machine are designed and studied,and the MTX numerical control hobbing machine is proposed.The overall scheme of the tangential tool setting system,the principle of tangential tool setting is introduced in detail with the machining of the standard worm gear;2.The selection and design of the hardware of the system were carried out.The detection principle of different types of proximity sensors was analyzed.According to the different materials of the system,the suitable proximity sensor was selected.According to the actual needs of the system,ARM was selected as the suitable hardware platform for the lower computer.At the same time,according to the output signal characteristics of the sensor,the median filtering digital filtering method is selected to denoise the sensor signal;3.Designed and developed the upper computer platform of the system.According to the OPC technical specification and the design requirements of the system,select the Visual Stdio 2013 development environment,use the C++ language to write the OPC communication server,and independently develop the upper computer software for the MTX CNC gear hobbing machine.Network connection mode debugging,realizing data interaction between PC and MTX CNC gear hobbing machine;4.Design the experimental scheme,verify the system developed,apply the system to the MTX CNC gear hobbing machine,determine the feasibility of the scheme,and analyze and process the data through Excel and Maltab platform to obtain the tangential tool position coordinates of the system.The NC program is programmed by the OPC communication client to control the movement of the corresponding axis to the coordinate point.Finally,the accuracy and result of the tool setting are obtained by the feeler measurement method.The result shows that the tangential tool setting system can be used on the MTX CNC gear hobbing machine.A result of the tool setting of 0.32 mm can be obtained.