Many pneumatic cylinders synchronous control system

The utility model discloses a many pneumatic cylinders synchronous control system. Control system include controller, switching -over valve, two at least pneumatic cylinders, hydraulically controlled check valve, digital choke valve, servovalve and displacement sensor. The utility model discloses a whether the displacement difference between monitoring initiative pneumatic cylinder and each the driven pneumatic cylinder is in predetermined synchronous displacement deviation range, oil or oil drain are mended to the have flow in pole chamber and the pole chamber that has of the corresponding driven pneumatic cylinder of control servovalve messenger that correspond driven pneumatic cylinder through inflow of control figure baffling or outflow, thereby two kind rough and accurate simultaneous movement between initiative pneumatic cylinder and each the driven pneumatic cylinder have been realized convenient and fast, current many pneumatic cylinders synchronous control system's complexity has been avoided, and is simple in structure, the comprehensive compensation device is rapid in response speed, stable and reliable operation, good safety, advantages such as the precision controllability is good, it worth to have extensive popularization and application.