System for automatic management of tool life

Electricity: motive power systems – Positional servo systems – Adaptive or optimizing systems including 'bang-bang' servos

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318572, 29568, 318634, G05B 1300

Patent

active

042141915

ABSTRACT:
A system for the automatic management (detection and control) of tool life in a numerically controlled machine tool having means for automatically measuring the dimension of workpieces and correcting the tool offset of a cutting tool depending on wear on the cutting tool. In the system, the mechanical deformation error component (radial deviation component of a spindle of the machine tool) due to heat is removed from the amount of tool offset value (tool feed position compensation) so as to accumulate solely the net tool wear component, and the cutting tool is exchanged when the accumulated value attains a predetermined setting.

REFERENCES:
patent: 3594563 (1971-07-01), Bishop
patent: 3605531 (1971-09-01), Izumi et al.
patent: 3783253 (1974-01-01), Anderson et al.
patent: 4061952 (1977-12-01), Dinsdale et al.

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