Method and apparatus for correcting positioning errors on a mach

Details Method and apparatus for correcting positioning errors on a mach Method and apparatus for correcting positioning errors on a mach

1994-09-07

1996-06-04

Envall, Jr., Roy N.

Boots, shoes, and leggings

36447404, 395 21, 395904, G05B 19404

Patent

active

055239536

ABSTRACT:
A machine tool having a tool member which is moveable along at least one axis relative to a workpiece to be machined, comprising thermosensors for sensing temperatures of a plurality of components of the machine tool. Responsive to the sensed temperatures, neural networks infer thermal deformations of the machine components. Based on the inferred values of thermal deformations, a correction signal is obtained which is combined with a drive signal for moving the tool member and/or workpiece to correct for any positioning error in the direction of the axis. Thermal deformations of machine components should be suitably inferred under the circumstances prevailing where the machine tool is installed. A corresponding method of correcting thermal deformations in a machine tool is also described.

REFERENCES:
patent: 4392195 (1983-07-01), Inoue
patent: 5259064 (1993-11-01), Furuta et al.

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