Dynamic error correcting system in a numerically controlled mach

Details Dynamic error correcting system in a numerically controlled mach Dynamic error correcting system in a numerically controlled mach

1996-08-22

1999-04-20

Howell, Daniel W.

Gear cutting, milling, or planing

Milling

Process

36447412, 409147, 409149, 409193, 409239, B23Q 2300

Patent

active

058951814

ABSTRACT:
A feedrate and travelling distance before the feed orientation of a feed drive axis is obtained by analyzing NC programs when carrying out a machining action, and the lost motion correcting quantity corresponding to said feedrate and travelling distance is calculated by using the relationship obtained in advance by experiments. Furthermore, the lost motion correcting quantity obtained by calculations is overlapped onto the instruction value to a servo motor which drives the feed drive axis, when the feed orientation of said feed drive axis is reversed.

REFERENCES:
patent: 5011345 (1991-04-01), Nishigai et al.
patent: 5214592 (1993-05-01), Serizawa et al.

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