Workpiece clamping jig

The utility model relates to the field of jigs, in particular to a workpiece clamping jig which comprises a base used for fixing other parts, a working air cylinder is arranged on the base, a workpiece clamping base used for containing a workpiece is arranged at the upper end of the air cylinder, and the movable end of the air cylinder penetrates through the workpiece clamping base and is connected with a clamping block module. The clamping block module is located in the workpiece clamping base and comprises a first inclined wedge block, a second inclined wedge block matched with the first inclined wedge block is arranged on the outer side of the first inclined wedge block and connected with the first inclined wedge block, and the first inclined wedge block and the second inclined wedge block can slide relative to each other. According to the workpiece clamping jig, the workpiece can be rapidly clamped and fixed, the clamping speed is high, and workpiece clamping is stable. 本实用新型涉及治具领域，具体涉及一种工件夹持治具，包括用于固定其他零件