Clamp for fork plate groove milling

A clamp for fork plate groove milling comprises a support provided with a horizontal panel and a vertical panel, the vertical panel is provided with a first positioning portion and a first positioning locking portion, the first positioning portion comprises a first positioning column detachably connected with the vertical panel, and the first positioning locking portion comprises a nut, a bolt, a gasket and an annular cylindrical second positioning column. The second positioning column is detachably connected with the vertical panel, the free end of the bolt penetrates through the second positioning column from the back face of the vertical panel, the gasket is arranged at the free end of the bolt in a sleeving mode, and the nut is in threaded connection with the bolt. When the positions of the first positioning part and the first positioning locking part are set to fix the fork plate to be machined, the bottom surface of the first pre-machining groove of the fork plate is parallel to the horizontal panel; du