Tool detection system

Details Tool detection system Tool detection system

1982-11-17

1985-03-12

Myracle, Jerry W.

Communications: electrical

Condition responsive indicating system

Specific condition

408 6, 408 16, B23B 4900

Patent

active

045048240

ABSTRACT:
Apparatus for detecting the presence of a tool in a spindle which can be used where automatic unattend operation occurs and it must be known that a tool is in the spindle. For example, if the tool changer on a machining center dropped a tool when transferring it from a magazine to a spindle the machine would continue to operate but machining would not occur. In the invention, air pressure is supplied to a point through a series of holes in the spindle and if a tool is present in the spindle, it will prevent air from escaping. If the tool is absent, air will escape from the spindle or when the tool is not properly seated in the taper of the spindle which will cause the air pressure to drop and to stop the spindle motor and/or provide a suitable indication and warning to the operator.

REFERENCES:
patent: Re26623 (1969-07-01), Erikson
patent: 1498477 (1924-06-01), Nichles
patent: 3587361 (1971-06-01), Smith
patent: 3817246 (1974-06-01), Weigl
patent: 4069587 (1978-01-01), Peralta
patent: 4127279 (1978-11-01), Wright
patent: 4426177 (1984-01-01), Perry

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