Method for continuous path control of a machine tool

Details Method for continuous path control of a machine tool Method for continuous path control of a machine tool

1978-09-21

1981-07-07

Hinson, Harrison L.

Turning

Process of turning

B23B 300

Patent

active

042767920

ABSTRACT:
The invention relates to a method for the continuous path control of a machine tool, where either the tool or the workpiece is moved along a curve corresponding to the contour for the purpose of producing a given workpiece contour. The shape of the contour is approximated by a plurality of individual points and interpolation is carried out between the points. After each interpolation section, the set point is scanned, a set point/actual value comparison is carried out and a corresponding correction value is put in for the actuating element. To reduce the required effort at good accuracy, set point scanning is carried out after a given path section instead of a given time interval.

REFERENCES:
patent: 2843811 (1958-07-01), Tripp
patent: 2875390 (1959-02-01), Tripp
patent: 2907937 (1959-10-01), Apgar et al.
patent: 2988681 (1961-06-01), Bower
patent: 3191294 (1965-06-01), Daugherty
patent: 3715938 (1973-02-01), Ledergerber et al.
patent: 3754487 (1973-08-01), Nachgital
patent: 3854353 (1974-12-01), Cutler
patent: 3878742 (1975-04-01), Lahm
patent: 4018113 (1977-04-01), Blazehin et al.

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