Milling machine expansion workbench support

The utility model provides a milling machine expansion workbench support which is installed on a workbench of a milling machine and comprises a workpiece clamping plate, a plurality of fixing rods and rotating shafts, the fixing rods are symmetrically arranged and penetrate through the workpiece clamping plate, and the two ends of each fixing rod are connected to the different rotating rods respectively. The rotating shaft is installed on the symmetric center of the fixing rod, the rotating shaft penetrates through the rotating rod and the workpiece clamping plate, the rotating shaft and the rotating rod are fixedly installed, and the rotating shaft and the workpiece clamping plate are rotatably installed. The rotating shaft drives the rotating rod and the fixed rod to rotate synchronously, rotation of the workpiece clamping plate on the workbench is completed, and four-axis machining of parts is achieved on a three-axis horizontal milling machine and a three-axis vertical milling machine. 本实用新型提供了一种铣床拓展工作台支架