Numerical control method and numerical control device

Details Numerical control method and numerical control device Numerical control method and numerical control device

1996-03-12

1998-03-03

Cabeca, John W.

Electricity: motive power systems

Positional servo systems

Program- or pattern-controlled systems

31856823, 318603, 36447402, 36447428, G05B 1924

Patent

active

057239622

ABSTRACT:
A numerical control device according to the present invention progressively analyzes a machining program stored in a storage device by one program block or by a plurality of program blocks, computes a migration rate and a feed speed in each axial direction from an instructed moving position of a tool and a feed speed of the tool in an interpolating section, outputs a positional instruction to an object for control for each given cycle, and has a sampling time interval computing section for computing a sampling time so that a number of instruction pulses for each sampling time under a given feed speed is kept at a constant value when a migration rate for 1 block computed in the interpolating section is divided to a number of pulses for each sampling time, and an interruption controlling section for setting a variable sampling time.

REFERENCES:
patent: 3825735 (1974-07-01), Bowers et al.
patent: 3854081 (1974-12-01), Benaglio
patent: 4020331 (1977-04-01), Kimura et al.
patent: 4287460 (1981-09-01), Nozawa et al.
patent: 4652804 (1987-03-01), Kawamura et al.

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