DEVICE FOR POLISHING INSIDE OF PIPE

摘要

PURPOSE:To provide a device for polishing the inside of a pipe, which can be constructed so as to save space and can move an abrasive tool smoothly in the direction of the periphery, radius and axis of the pipe. CONSTITUTION:A device body 2 is fixed inside a pipe 1 by means of a fixing foot 11. The position of an abrasive tool 4 in the peripheral direction of the pipe 1 is determined by turning an arm 6 together with a frame in the peripheral direction of the pipe 1. The position of the abrasive tool 4 in the axial direction of the pipe 1 is determined by moving the abrasive tool 4 in the axial direction of the pipe 1 by means of an axial direction moving device 8b arranged on the arm 6. The abrasive tool 4 is moved in the radial direction of the pipe 1 by moving the arm 6 radially while rotating the abrasive tool 4 by driving a polishing motor 5, and polishing operation is performed by pushing the abrasive tool 4 against the inner peripheral surface of the pipe 1.