Jig clamping device

The utility model provides a jig clamping device which comprises a fixed base. A vacuum sucker and a vacuum guide-in device are arranged on the surface and the bottom face of the fixed base respectively and communicated. The vacuum guide-in device is composed of an air inlet module and a guide-in pipe, the top end of the air inlet module is tightly fixed on the center of the bottom face of the fixed base, the guide-in pipe is connected to the side wall of the air inlet module and communicated with the vacuum sucker through the air inlet module, a plurality of vacuum suction holes are formed in the vacuum sucker, and the end portion of each vacuum suction hole is communicated with the air inlet module. Clamping and locating are achieved through innovative adoption of vacuum absorption, workpieces are adsorbed through the vacuum suction holes and through communication of the air inlet module in a stable and firm mode and can not loose, processing and producing efficiency is guaranteed, and a large amount of investment of labor and materials is saved.