| 摘要 |
A combination of a lower jig (77) set on a stationary base (79) and an upper jig (75) adapted to cooperate with the lower jig to pinch a work (W), hold the work and move along a guide rail (111) between from a work loading section (69) and a laser welding section (71) is replaced by a loader (113) movable on the guide rail, an upper jig clamp (115) provided on the loader and having a jig receiver (119) for a side edge (125) of the upper jig to be placed thereon and a vertically movable member (123) to be moved downward from above the jig receiver to clamp the side edge of the upper jig, an upper jig lift (103) adapted, when the upper jig is released from the upper jig clamp as the vertically movable member is moved upward, to lift the upper jig to render the loader movable together with the upper jig clamp to the work loading section, a jig transfer guide rail (94) normally downwardly spaced from the lower jig and adapted, when the loader is moved together with the upper jig clamp to the work loading section and the upper jig is placed on the lower jig as the upper jig is downwardly moved by the upper jig lift, to guide the upper and lower jigs to be moved in a perpendicular direction to the guide rail, a rail lift (93) adapted to lift the jig transfer guide rail to support the lower jig, as the upper jig is placed thereon, and a guide rail lift (149) adapted to move the guide rail to have a movement range secured for the lower jig to be moved together with the upper jig along the jig transfer guide rail, as the jig transfer guide rail is lifted by the rail lift, for one of loading and unloading of the upper and lower jigs relative to outside.
|
