Thermal displacement correcting method of machine tool

Details Thermal displacement correcting method of machine tool Thermal displacement correcting method of machine tool

1995-04-20

1997-04-08

Ruggiero, Joseph

Boots, shoes, and leggings

36447419, 36447435, 318565, 318634, G05B 19048, G05B 19404

Patent

active

056194145

ABSTRACT:
A method of correcting thermal displacement error in a driving system of a machine tool comprises forming a heat distribution model including the driving system, and finding an amount of drive in the driving system in the heat distribution model, estimating a heating value supplied to the heat distribution model depending upon the amount of drive, estimating a temperature distribution state in the distribution model by finding a time variation of heating value in the heat distribution model receiving supply of the estimated heating value, finding an amount of heat displacement in the driving system depending upon the temperature distribution state and finding a correction value for thermal displacement correction depending upon the amount of thermal displacement. It is thereby possible to correct the thermal displacement error in the driving system of the machine tool without a detector.

REFERENCES:
patent: 3873816 (1975-03-01), Takeyama et al.
patent: 4550277 (1985-10-01), Carney
patent: 5444640 (1995-08-01), Hirai

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