| 摘要 |
PURPOSE:To eliminate troublesome work for inputting number of parts by detecting the end of bar member through an end detection means and detecting the residual length, then operating residual number of parts to be obtained from the bar member through an operating means. CONSTITUTION:When a bar member 27 is fed out in the direction of an arrow D from a bar feeder 26, a light projecting section 7a, a light receiving section 7b and a detection hole 7c are aligned if the end 27c is positioned to the right of residual member detecting position RS, and a light beam projects to the light receiving section 7b. Residual length detecting section receives the light beam and outputs to an operating section where the distance LA from the detecting position RS to a pawl 6a of chuck 6 is added with a distance L6 from the pawl 6a to the tip of bar member 27a, then machining length L3 of part 27d is subtracted therefrom to produce a minimum residual length lm. Machining control section receives the minimum length and subtracts a gripping margin therefrom to produce a machinable length which is divided by single machining length L3 to obtain an integer of quotient, i.e. number Q of parts to be obtained from the bar member 27, which is outputted to main control section thus manufacturing Q pieces of parts 27d.
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