Clamping structure for mine PE pipe polishing

The utility model discloses a clamping structure for mine PE pipe polishing in the technical field of pipe production equipment. The clamping structure comprises a rack, a limiting pipe is fixedly arranged on the rack, an arc-shaped limiting plate and an arc-shaped connecting plate which are opposite to each other are arranged in the limiting pipe, the connecting plate is fixedly connected with the limiting pipe, and a spring is arranged between the limiting plate and the inner wall of the limiting pipe; the limiting plate is fixedly connected with a connecting rod penetrating through the limiting pipe, the connecting rod is vertically and slidably connected with the limiting pipe, and the connecting rod is fixedly provided with a linkage plate; the driving motor is fixedly arranged on the rack, the driving motor drives a cam, and the top of the cam abuts against the bottom of the linkage plate. According to the scheme, the limiting plate is pulled through the spring, so that enough space is formed between th