Clamp for spline shaft fork lug hole boring

The invention discloses a clamp for spline shaft fork lug hole boring, and relates to a clamp for spline shaft fork lug hole boring in the automatic machining process to solve the problems that in automatic machining, datum transformation is frequent, and the production efficiency is influenced due to excessive manual participation. In the production process, a workpiece is placed on a workpiece supporting plate, an oil cylinder moves and drives a sliding tip so that the sliding tip and a fixed tip can jointly eject the workpiece. An air cylinder works and drives a V-shaped block to move to fix the workpiece and prevent the workpiece from rotating. The fixed tip and the sliding tip are arranged in the opposite directions and are coaxial. The axes of the fixed tip and the sliding tip are perpendicular to a spindle of a machine tool. According to the clamp for spline shaft fork lug hole boring, a center hole of the workpiece serves as a positioning datum, the clamp can be used for machining of lug hole boring o