The Design Of Constant Linear Speed Control System Of The Quenching In CNC Machine Tool

Along with the application of the induction heating technology, CNC Induction Hardening Machine has been serialized. The traditional induction hardening CNC machine is a kind of parts with a sensor and the efficiency is lower. In recent years, with the development of numerical control machine induction hardening, different required performance of spare parts can be heated in a same machine and reduce the cost and improve the efficiency. However, using generic quenching machine tool have a problem is: for every part of its components, the heating time is different and so the spare parts temperature is different and quenching effect is not ideal. Based on using the general sensors, this paper puts forward a constant speed control method to solve the defects which caused by the heating time is unequaled and improve the quality of quenching.This research contents can be divided into three parts: researching and simulating of the plane disc cam outline curve. Building and debugging of the hardware system. The compilation and debugging of the control process. First of all, take the straight moving roller follower disc cam as the research object. Having a study and simulation of the mathematical model which of typical disc cam contour curve. Second, setting up mathematical model of any disk cam of the contour curve. Bring a new kind of solving random disc cam contour curve method forward. Analyzes the effect of error and get a method to describe the cam contour curve arbitrarily plate type, and realized the controlling of the curving shape at any constant speed. In the hardware system construction and commissioning, briefly describe the advantages of CNC applications of the motion control chip MCX314 and introduces the function and technical indexes of movement control cards MC6212P. Based on motion control card board, we Design the electrical control system and the request interface and the corresponding schematic. Control program is mainly based on MC6212P movement control cards of the disc cam contour curve constant speed of software development. Designed the interactive interface of CNC system, describing the seamless way of Matlab and VB, and Writing the software code and debugging the hardware system. Finally, analyzed the main reasons of the errors to ensure the reliability of the system and the constant linear speed control system was experimentally verified.Through theoretical analysis and experimental verification, this subject solved the constant linear induction hardening control technology which using the general sensors. At the same time, putting forward and solving any disk-type cam profile curve programmed in order to obtain a complex cam profile curve and laid a solid the theoretical basis.