Linkage clamping device

The utility model provides a linkage clamping device for the technical field of a processing device, the linkage clamping device is characterized in that the linkage clamping device is provided with a base plate, the base plate is provided with a mould holder, and the upper part of the mould holder can be used for placing a workpiece mould; the upper part of the mould holder is provided with an L-shaped press plate holder, and an erecting holder of the press plate holder can be rotationally connected with an upper press plate; horizontal holders can be rotationally connected with an upper press plate of a side press plate and the side press plate, and can respectively pass through a steering angle of preload spring spacing side press plate pusher for connecting with a press screw, and the press screw can be penetrated through the tail of the upper press plate. Compared with the linkage clamping device and the existing clamping device, the linkage clamping device has the advantages of stable clamping, and simple operation; the clamping position can not be restricted, etc.