Abrasive tool making process – material – or composition – With carbohydrate or reaction product thereof
Patent
1990-07-30
1993-08-24
Rose, Robert A.
Abrasive tool making process, material, or composition
With carbohydrate or reaction product thereof
51165R, 5116576, B24B 4904
Patent
active
052377792
ABSTRACT:
An apparatus for detecting machining states of a workpiece in a machine tool comprises a non-contact type displacement detector for detecting a radial bending displacement of a spindle in a region between a machining point and a front bearing of a tool spindle or a work spindle. The displacements correspond to states under which the machine tool starts operating, and the tool contacts the workpiece to various unfinished faces, a machining state and a machining surface condition of the workpiece during machining. By inputting the detection signal to different frequency band pass filters, the machining states and the workpiece surface condition are discriminated. A set of comparators compare the output signals from the frequency band pass filters with set reference values. The respective machining states are judged from the comparative results. Comparative judgment signals are inputted to a control unit, thereby controlling the machine tool to automatically perform appropriate machining operations.
REFERENCES:
patent: 3829750 (1974-08-01), Centner et al.
patent: 3905161 (1975-09-01), Tomita
patent: 4604834 (1986-08-01), Thompson
Adams Bruce L.
Rose Robert A.
Seiko Seiki Kabushiki Kaisha
Wilks Van C.
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