Lateral clamping turntable positioning tool

The utility model relates to the technical field of rotating disc type machining tools, in particular to a lateral clamping rotating disc positioning tool and a feeding mechanism. A plurality of inclined positioning tool bodies are distributed on a rotary table body in a circumferential array mode, lateral positioning planes and limiting parts are arranged in the positioning tool bodies, and the positioning tool bodies are matched with first rotary air cylinders, so that workpieces are limited and matched through the positioning planes and the limiting parts and then clamped through the first rotary air cylinders; by means of the clamping mode, the upper portion of the workpiece is not shielded by the positioning tool body, and a machining device can conveniently machine all parts of the workpiece body from the upper portion. The feeding channel and the workpiece transferring assembly are arranged, the XZ double-axis moving module is matched with the second rotating air cylinder and the pneumatic clamping jaw