| 摘要 |
The apparatus includes a base 23 fixed at a predetermine position, a tool holding jig 29, to which a welding tool 21 is mounted, installed on the base 23 rotatably about a preset reference axis L1 and movably along the reference axis L1, a tool rotation driving means for rotating the tool holding jig about the reference axis L1, and a tool movement driving means for moving the tool holding jig along the reference axis L1. The apparatus realizes miniaturization of the apparatus, simplification of the structure, and improvement of the operability.
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