| 摘要 |
A jig for automatically welding pipe frames used to form vehicle seats is disclosed. In this jig, there is provided on a frame carrying plate a guide element having the reference plane of one of two side portions of a frame, so that the one side portion of the frame can be welded while it is in abutment with the guide element. To weld the other side portion of the frame, the frame carrying plate is moved and two adjusters provided in a bed plate are used for the reference. With such structure, while a welding machine remains fixed, by changing the references according to the portions to be welded in the width direction of the pipe frame, it is possible to weld the two side portions of the frame accurately. |
