Combined guide roller structure of puncher

The utility model discloses a combined guide roller structure of a perforating machine, and particularly relates to the technical field of guide rollers of perforating machines, which comprises a guide roller body internally provided with an auxiliary mechanism. The auxiliary mechanism comprises a first sleeve, the first sleeve is fixedly arranged on one side of an inner cavity of the guide rollerbody, an inner cylinder is fixedly arranged in the first sleeve, a first connecting plate is fixedly arranged on one side of the inner cylinder, two first screws are arranged on the first connectingplate, and a first cavity is formed in the guide roller body; the auxiliary mechanism further comprises a second sleeve. Through the design of the auxiliary mechanism, the rotation precision and the axial precision of the guide roller body are ensured, the precise requirement of the perforating machine is met, an existing perforating machine can machine a high-precision steel pipe, the problem ofdry friction generated betw