Machining-error correcting method used for a non-circular shape

Details Machining-error correcting method used for a non-circular shape Machining-error correcting method used for a non-circular shape

1992-12-23

1995-03-07

Envall, Jr., Roy N.

Boots, shoes, and leggings

36447431, 318570, 318573, G06F 1546

Patent

active

053964349

ABSTRACT:
A machining-error of a non-circular shape machining apparatus is corrected by controlling a movement of a tool which is synchronous with a rotation of a workpiece. A position of the tool is detected when the tool is according to a command position which is coincident with or close to a target position of the tool. At least an amplitude ratio and a phase difference of an amplitude ratio, a phase difference, and an offset difference between the target position and the detected position; is obtained. At least a process of increases and/or reducing the command position and a process of phase shift of the process for increasing and/or reducing the command position on the basis of the amplitude ratio, a process for shifting a phase on the basis of the phase difference, and a process for changing an offset of the command position on the basis of the offset difference are performed, whereby a first corrected command position is obtained. The detected position of the tool can be made to coincide with the target position quickly since the target position and the detected position are determined as a waveform, which is divided into an amplitude, a phase, an offset and a distorsion.

REFERENCES:
patent: 4027245 (1977-05-01), Bourrat et al.
patent: 4538233 (1985-08-01), Resnick et al.
patent: 4694401 (1987-09-01), Higuchi
patent: 5031107 (1991-07-01), Suzuki et al.
patent: 5060164 (1991-10-01), Yoneda et al.
patent: 5229951 (1993-07-01), Sugita et al.

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