Punching die for PVC pipe machining

The utility model discloses a punching mould used for PVC pipe processing relates to PVC pipe technical field, including bottom plate and connect two locating plate of box body, the outer wall of box body is symmetrically provided with through hole, the inner wall of box body is fixedly installed locating pipe, the inside of box body is symmetrically provided with hydraulic column, the hydraulic column is fixed in the box body. And connecting grooves are symmetrically formed in the outer wall of the positioning pipe, clamping plates are fixedly installed at the output ends of the two hydraulic columns, rubber pads are fixedly installed on the inner walls of the two clamping plates, and supporting plates are symmetrically and fixedly installed on the lower surface of the bottom plate. According to the pipe clamping device, the connecting grooves are formed in the outer walls of the positioning pipes, the clamping plates are supported and fixed through cooperation of the hydraulic columns, the clamping plates c