| 摘要 |
PROBLEM TO BE SOLVED: To perform an efficient processing by changing an avoiding angle of an avoiding clamp to a small setting angle, when openings between a plurality of avoiding clamps are smaller than a preset distance, and by turning the avoiding clamp being intruded into an interfering area with a working part to a preset avoiding angle or a normal avoiding angle according to a size of the work. SOLUTION: A carriage 43 is equipped with three avoiding clamps 25A, 25B and 25C wherein clampers 23 are constituted in a way to turn for avoiding from interfering areas between each processing part. The plural avoiding clamps get close to a work Wa being small and, alienate from a work Wc being large along the carriage 43. A piston position detector is installed to clamper turning cylinders 55 and, the cylinders 55 are made to be stopped when a piston position is detected. Avoiding angles of the avoiding clamps are automatically changed according to a work size by a detected signal of clamp opening distances. A mistake of an operator is thus eliminated and yielding and productivity are improved.
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