Clamp for processing equipment

The utility model discloses a clamp for machining equipment. The clamp comprises a supporting plate, guide rails are fixedly installed on the two sides of the top of the supporting plate, a sliding block is fixedly installed on the guide rails, a supporting rod is fixedly installed on the sliding block, a first pressing block is fixedly installed at the free end of the supporting rod, and a second air cylinder is fixed to the supporting plate. A workpiece to be machined is placed between the two mounting plates, piston rods of the first air cylinders are started to retract, the two connecting frames are driven to move oppositely, the two sliding blocks are driven to move oppositely, the two first pressing blocks are driven to clamp the workpiece through the supporting rods, piston rods of the second air cylinders are started to stretch out, and the second pressing blocks are driven to clamp the workpiece. And therefore, the workpiece is clamped in four directions to be fixed, the fixing effect is good, the wo