PURPOSE: To omit the work for the inside face after welding, by fixing the cylindrical material by a positioning pin and a clamp pin so that a cooling medium path may be formed in this material and by welding the material to be welded while supplying the cooling medium to the cooling medium path.
CONSTITUTION: In case that the first wheel panel W2 is welded onto the outside circumferential face of cylindrical wheel hub W1 to produce front wheel W for automatic two-wheeled vehicle, wheel hub W1 is fixed to the welding device by positioning pin 13 and clamp pin 22 so that a cooling medium path may be formed in wheel hub W1. The cooling medium path is constituted with water supply tube 15, leading-in tube 16, and exhaust tube 17. Here, wheel hub W1 and the first wheel panel W2 are welded by arc welding machine 40 while supplying water from water supply tube 15. Water passes through leading-in tube 16 and is exhausted from exhaust tube 17 while brought into contact with the inside circumferential face of wheel hub W1. Therefore, the inside circumferential face of wheel hub W1 is cooled effectively, and oxidation and welding distortion are not generated, and the work after welding is needless.
| WO/1987/003835 | DEVICE FOR AUTOMATIC MACHINING OF DIFFERENTLY-SHAPED PARTS |
| JPH06122087 | LASER BEAM MACHINE |
HORI MITSUHIRO
YOKOYAMA TOMOYUKI
