Workpiece fixing mechanism of four-shaft swing head foam carving machine

The utility model discloses a workpiece fixing mechanism of a four-shaft swing head foam carving machine, relates to the technical field of foam carving machines, solves the problems that most of existing four-shaft swing head foam carving machines are lack of workpiece fixing mechanisms, and workpieces are prone to deviation, and comprises a workbench and four fixing mechanisms. The fixing mechanism comprises a base, an air cylinder fixedly installed on the base and a clamping piece fixedly installed on a piston rod of the air cylinder, a two-way screw rod is rotationally installed in the workbench, the surface of the two-way screw rod is in threaded connection with two symmetrical movable seats, and the two ends of the top of each movable seat are fixedly connected with connecting blocks; and the two connecting blocks on the same movable seat are fixedly connected with the two bases on the same side respectively. The four fixing mechanisms are arranged on the workbench, so that the four corners of the workp