Hole making position control unit with a marked plate for a hole

Cutting by use of rotating axially moving tool – With means to regulate operation by use of templet – tape,...

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Details

B23B 3908, B23B 3924, B23B 3926

Patent

active

040985563

ABSTRACT:
A hole making position control unit for a hole making machine suitable for making rivet holes and bolt holes in shaped steel. This control unit mainly comprises a marked plate having marks thereon, a photoelectrical apparatus for detecting the mark and a hole making head interlocked with the photoelectrical apparatus, and controls the action of the hole making head in accordance with the arrangement of the marks, which are arranged at the positions corresponding to the centers of holes to be made and to the turning positions of the moving direction of the hole making head. Each mark has a width to be detected in the detecting direction of the photoelectrical apparatus, so that during the detection of the mark the hole making head is instructed to decelerate, and when the detection is finished the hole making head is instructed to stop.

REFERENCES:
patent: 3163057 (1964-12-01), Drummond et al.
patent: 3232142 (1966-02-01), Deckl et al.
patent: 3532893 (1970-10-01), Marantette et al.
patent: 3712750 (1973-01-01), Healy

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