JPS6411798A - Liquid jet cutter - Google Patents

Abstract

PURPOSE: To continuously cut a wall, floor, or the like in an arbitrary shape by providing a cutting machine body capable of traveling and freely fixed to a ceiling, floor surface, or the like with a nozzle head moving mechanism for two-dimensionally moving the nozzle head along a cutting object. CONSTITUTION: After a cutting machine body 10 is traveled by the turning of traveling wheels 20 to a prescribed position, the cutting machine body 10 is fixed to a floor or ceiling by means of suckers 51 for suckedly fixing it to the floor surface and by the extension of respective rods of air-cylinders 54, 55. Then, a pole screw 46 is turned by the drive of a Y-axis driving motor 49 to displace vertically a vertical member 45, so that first and second arms 39 and 42 are vertically displaced. At the same time, a first arm 30 is turned by the drive of a first motor 37 making a fulcrum of a swivel joint 38, and also the second arm 42 is turned by the drive of a second motor 40 making a fulcrum of a swivel joint 41, so that a nozzle head 11 at the end thereof is moved within the two-dimensional plane of the wall, floor, etc., for cutting the wall, floor, etc., by the jet current jetted from a nozzle 12.