| 摘要 |
PURPOSE:To provide a friction welding machine which adapts itself to press welding of long-sized materials, bends, etc. by providing a rotary unit which holds an intermediate material between the two clamping units for gripping pipes, rotating only the intermediate material and drawing the units on both sides toward each other. CONSTITUTION:The works 1, 2 are inserted and gripped in a pressurizing unit 10 and a clamping unit 20 at a right angle to the axial direction. A gear block 38 is stuck to an intermediate material 3, and the intermediate material is inserted and held in a rotary unit for the intermediate material at a right angle to the axial direction. While the material 3 is kept rotated, the oil hydraulic cylinder 12 of the unit 10 is operated to draw the unit 20 toward the unit 10 and to weld the end faces of the materials 1, 2 to the end faces of the material 3 under equal pressure, whereby the materials are subjected to friction welding. The driving force upon the material 3 is released after the end of the welding and the welded material is subjected to deburring and other treatments. By such device, the friction welding of long-sized materials, bends, etc. is executed on installation site, etc. quickly and the performance of the joints is improved. |
