Device for controlling the orbital accuracy of a work spindle

Gear cutting – milling – or planing – Milling – With limit means to aid in positioning of cutter bit or work

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33642, B32Q 1700

Patent

active

057918430

ABSTRACT:
A device for controlling the accuracy of the orbit along which a work spindle of an NC machine is moved during the manufacture of high-precision circular bores, inner and outer surfaces as well as radii essentially consists of a control unit (1), a clamping element (3) as well as an intermediate piece (2). The clamping element is connected to the work spindle of the machine tool and the control unit is placed on the work table of the machine tool, at the location at which the workpiece is held during the machining. The intermediate piece (2) is formed by a transducer (24) or comprises a transducer. If deviations from the nominal radius occur, the transducer transmits a signal to an amplifier, said signal being amplified and subsequently displayed and/or recorded. A shaft encoder (61) allows the precise determination and, if so required, registration of the respective measuring position. A special routing of the measuring cable and an internal transmission by means of a slip ring (66) and sensors (67), e.g., contact springs, allows multiple revolutions of the work spindle around the center (6) of the orbit without risking damage to the measuring cable.

REFERENCES:
patent: 2483743 (1949-10-01), Furrettini
patent: 3826011 (1974-07-01), D'Aniello
patent: 4435905 (1984-03-01), Bryan
patent: 5036595 (1991-08-01), Nevery
patent: 5052115 (1991-10-01), Burdekin
patent: 5111590 (1992-05-01), Park

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