| The demand of consumer to machine tool's function improves unceasingly with the development of mechanical manufacturing industry. The internal grinder becomes numerical control step-by-step, develops to the direction of high accuracy, high efficiency, flexibility spend. The Top grade type numerical control system is applied broadly, but it costs highly. The book has been adopted a scheme that PLC, position control unit, as well as touching screen to be the control system, use the position control function of PLC to realize the servo control, To realize controlling effect identical with numerical control system.At first the book chooses the ingredients such as PLC, position control unit, touching screen, servo driving system, and do the design of circuit and signal linking. Then according to machine tool action ,the book establish the program of PLC ,the program of position control unit and touching screen window. And I research the servo motion system and build the machine tool servo feeding systematic mathematic model, drive delivery function, analyse the characteristic property of feeding system and the major factor of the static characteristic of system. At last, I carried out system debugging and the grinding test to verifying the feasibility of this scheme. |