Lathe clamp for special-shaped product

The utility model discloses a lathe fixture for a special-shaped product, and belongs to the technical field of lathe fixtures. The device comprises a main shaft, one end of the main shaft is fixedly connected with an upper connecting block and a lower connecting block, a plurality of supporting cylinders are arranged on the side, close to the lower connecting block, of the upper connecting block, the upper connecting block is further fixedly connected with a positioning plate, and a plurality of oil cylinders are arranged on the side, close to the upper connecting block, of the lower connecting block. And a central positioning block is arranged between the upper connecting block and the lower connecting block and is fixedly connected with the main shaft. Through the arrangement of the positioning piece and the fixing pieces on the two sides, a product is firmly fixed through multi-point supporting and is kept at the fixed position, and therefore follow-up machining is facilitated. 本实用新型公开了异型产品用车床夹具，属于车床夹具技术领