SEAM WELDING COPYING DEVICE

• Main Authors: MACHIDA HARUO, KANAYA KOHEI, ASAINE TSUTOMU, YAMAOKA NAOJI, TSUKAGOSHI YASUHARU
• Format: Patent
• Language: English
• Published: 02.12.2010
• Subjects: CLADDING OR PLATING BY SOLDERING OR WELDING; CUTTING BY APPLYING HEAT LOCALLY, e.g. FLAME CUTTING; MACHINE TOOLS; METAL-WORKING NOT OTHERWISE PROVIDED FOR; PERFORMING OPERATIONS; SOLDERING OR UNSOLDERING; TRANSPORTING; WELDING; WORKING BY LASER BEAM

PROBLEM TO BE SOLVED: To provide a seam welding copying device capable of providing a corner part having a small radius of curvature on a cam ring. SOLUTION: A first roller 39 is brought into contact with a reference profile line 46, a second roller 37 is brought into contact with an inner circumferential surface of a cam ring 22, a first auxiliary roller 42 is brought into contact with a swollen part 49, and a second auxiliary roller 41 is brought into contact with the swollen part 49, respectively. Since the first auxiliary roller 42 and the second auxiliary roller 41 are added, any sway in the right-to-left direction in the figure can be prevented. In other words, any sway of a workpiece is prevented by three rollers of the second roller 37, the first auxiliary roller 42 and the second auxiliary roller 41 which are arranged at apexes of a triangle. Only the second roller 37 is arranged on the inner circumferential side of the cam ring 22. Thus, the radius of curvature of the inner circumferential surface of the cam ring 22 can be reduced to the radius of the second roller 37. COPYRIGHT: (C)2011,JPO&INPIT