Device for controlling a tool shaft of a cutting machine

Details Device for controlling a tool shaft of a cutting machine Device for controlling a tool shaft of a cutting machine

1998-05-27

1999-09-07

Briggs, William

Tool changing

Including machine tool or component

Rotary spindle machine tool

414736, 483 38, B23Q 3157

Patent

active

059478799

ABSTRACT:
A device for controlling a tool shaft of a cutting machine includes a casing in which the tool shaft is rotatably and movably received therein, the casing having a first and a second detection member, a first, a second and a third switch member respectively thereto, two racks selectably engaged with a toothed section of the tool shaft and each of the two racks having a damping device disposed therein. The tool shaft has head portion connected to a cylinder and the head portion has two rods extending therefrom. When the first rod is detected by the first detection member, and the head portion actuates the first switch member and one of the racks rotates the tool shaft till the second rod is detected by the second detection member so as to lower the tool shaft. The other rack is therefore engaged with and rotates the tool shaft till the damping device in the rack actuates the third switch member to raise the tool shaft to let the first rod be detected by the first detection member.

REFERENCES:
patent: 3760958 (1973-09-01), Lohneis
patent: 3786938 (1974-01-01), Kirkham
patent: 3886652 (1975-06-01), Roubloff et al.
patent: 4072236 (1978-02-01), Nomura et al.
patent: 4091526 (1978-05-01), Nakaso et al.
patent: 4399603 (1983-08-01), Reed
patent: 4419806 (1983-12-01), Esser

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