Thermal change computation apparatus for machine tool and storag

Details Thermal change computation apparatus for machine tool and storag Thermal change computation apparatus for machine tool and storag

1998-07-30

1999-12-14

Pitts, Andrea L.

Gear cutting, milling, or planing

Milling

With means to control temperature or lubricate

409 80, B23C 130

Patent

active

06000889&

ABSTRACT:
In a machine tool having a main shaft, a thermal change amount between two sampling times is computed on the basis of the movement distance of the main shaft during a period from time 0 to time 1a. After thermal change amounts are computed, a total thermal change amount which results from adding these thermal change amounts is computed. Since the thermal change amount is based on the movement distances (driving states) that are detected at the respective time points and the influence of the thermal change amounts that has been computed previously are added to the computed thermal change amount, it is possible to compute the total thermal change amount corresponding to the driving states at the respective time points.

REFERENCES:
patent: 3735157 (1973-05-01), Whetham
patent: 4533858 (1985-08-01), Tlaker
patent: 5619414 (1997-04-01), Ishii
patent: 5623857 (1997-04-01), Sakuraba
patent: 5779405 (1998-07-01), Aiso et al.

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