Product placing tool for ion plating machine

The utility model discloses a product placing tool for an ion plating machine, which comprises a transmission shaft, the upper end of the transmission shaft is fixedly connected with a spline shaft, the section diameter of the transmission shaft is larger than that of the spline shaft, the spline shaft is in sliding fit with a rotary table, and a plurality of placing grooves are annularly arrayed at the upper end of the rotary table. A lifting groove and two rotating grooves are formed in the spline shaft, the two rotating grooves are distributed relative to the lifting groove, a nut is embedded in the inner top end of the lifting groove, and a screw is in threaded connection with the interior of the nut. When different types of products need to be coated, the rotary table with different placing grooves can be replaced, the rotary table achieves the basic function of torque transmission through the spline groove and the spline shaft which are matched through splines, and then through mutual matching of the nu