Research On Closed-loop Control System Based On Windows Of Friction Welding

For promoting the development and application of the technology of linear friction welding for producing unitary vanes, on the base of the quondam research,.we separately design a software for measuring and controlling the equipment of linear friction welding and revolving friction welding by VC++ on the platform of Windows. In addition , we write a PLC control program for the linear fraction welding device with the GX Developer.The computer MACSYM of the linear fraction welding device is made up of an industrial computer,a programmable control system FX2N-128MT,a Multifunctional date collecting card,sensors and so on, Visual C++ sets a single document application program by the species owning to the CFormView besides, some critical problem found in the course of developing the computer MACSYM with VC++6.0 on the platform of Windows,including the design of the high-accuracy timer in VC++, thinking about the attribute of real time of the software,completing the drive by AD/DA and drawing the complicated curve etc, was introduced, on the base of which ,we reach the corresponding Software structure and design train of thought. By simulink and debugging ,the software can collect and output switch amounts and simulate amounts signals ,and it also has the ability of closed cycle control. By simulink and imitate checkout in PLC control case, the control program desighed for the programmable control system verifys the correctness of the action order of the PLC control program and properly solves the problem of reduce of the attribute of real time in welding because of the industeial computer collecting a great deal of switch Amount signal.Since the period for assembling and debugging the linear fraction welding equipment is so long, in order to verify the Feasibility of the computer MACSYM, we design the continuously driving fraction welding control system based on Windows according to the Similarity between the rotate fraction welding control and linear fraction welding control and the produce need of fraction welding, What results of the study indicate is:(l) the computer MACSYM designed for the fraction welding can have a real-time control on the course of fraction welding under Windows98 OP system.(2)the principle of controlling system of closed loop designed for the linear fraction welding equipment is right, which can be debugged by the software of linear...