Feed rate control system for numerical control machine tool

Details Feed rate control system for numerical control machine tool Feed rate control system for numerical control machine tool

1976-02-19

1977-04-26

Botz, Eugene G.

Registers

Transfer mechanism

Traveling pawl

318571, G05B 1918

Patent

active

040203310

ABSTRACT:
A feed rate control system for a numerical control system comprising a circuit to produce a unit movement quantity .DELTA.S and a unit feed rate .DELTA.F, a circuit to accumulate the unit feed rate .DELTA.F at each pulse of the pulse generator and to store them, a ratio calculator to obtain the ratio M of the output numerical value .SIGMA..DELTA.F to said unit movement quantity .DELTA.S, multipliers MUL.sub.1, MUL.sub.2, and MUL.sub.3 to multiply said unit movement quantity .DELTA.S, a Z-axis increment .DELTA.Z of said unit movement quantity .DELTA.S and a X-axis increment .DELTA.X, respectively, by said ratio calculator output M, and a circuit to compare the output numerical value .SIGMA..DELTA.F of the storage circuit with the unit movement quantity .DELTA.S and to produce an accumulating signal t whenever said .SIGMA..DELTA.F is larger than said .DELTA.S, said accumulating signal controlling t the feed rate of the machine tool, which is provided with a high feed rate circuit.

REFERENCES:
patent: 3798427 (1974-03-01), Conners

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