| 摘要 |
<p>PROBLEM TO BE SOLVED: To perform various types of machining correctly and easily even in a pipe passage having a small inlet port and miniaturize a machining device by simplifying the structure of the device. SOLUTION: This device is provided with a body section 20 connected to an operation cable 90 and moving to a pipe passage P, a machining section 30 moving radially in relation to the body section 20 for machining the internal wall of the pipe passage P, a camera housing section 50 formed integrally with the body section 20, a machining monitoring camera 52 which is provided in the camera housing section 50, can change photographing directions radially and photographs machining conditions, an expansion and fixed section 80 which can rotate in relation to the body section 20 and expands to the side of the internal wall of the pipe passage P, and a rotation guide section 60 which has a revolving ring 62, which freely revolves around the camera housing section 50 in the peripheral direction, and a plurality of revolution support rings 66, which are arranged in the external periphery of the revolving ring 62 and revolve freely in the direction orthogonal to the revolution of the revolving ring 62.</p> |
