| 摘要 |
PROBLEM TO BE SOLVED: To detect pressing force to parts of a carrying arm by a carrying arm positional error by output of a Hall element by fixing a permanent magnet to an upper plate or a lower plate, and fixing the Hall element to the lower plate or the upper plate on the opposite side to the side where the permanent magnet is fixed. SOLUTION: In this sensor for an error absorbing device, an upper plate 3 fixed to a carrying arm 1 and a lower plate 4 provided with a part holding part 5 are connected to each other by an elastic columnar body 8. In this case, a magnet block 15 is provided on the upper plate 3, a Hall element 18 is provided on the lower plate 4, and both are disposed to face each other. In inserting a part 9 into a part inserting hole 19, it is guided to a chamfered part 24 provided at an opening circumferential edge of the inserting hole 19 to be inserted, when the lower plate 4 is moved with the part 9 by pressing force F of the carrying arm 1 to the part 9 till the Hall element 18 gets closer to the magnet block 15. By detecting an output voltage of the Hall element at the time, the pressing force F can be detected.
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