Clamp

The clamp is used for clamping a workpiece and comprises a main body part, a transverse fixing part and a transverse reference part, the main body part comprises a first step part and a second step part which extend in the first direction, and the second step part is located on the side of the first step part in the second direction perpendicular to the first direction; in the third direction perpendicular to the first direction and the second direction, the second step part protrudes out of the first step part, the top face of the first step part is used for supporting the workpiece, the transverse fixing part is fixed to the side face of the first step part, and the transverse reference part movably penetrates through the transverse fixing part and is used for abutting against the workpiece in the second direction. According to the clamp, the operation process is simplified, the machining cost is effectively reduced, and products can be conveniently and rapidly switched on the clamp. 本发明公开了一种夹具，用于装夹工件，包括主体部