Numerical control method for five-axis processing machine

Details Numerical control method for five-axis processing machine Numerical control method for five-axis processing machine

2011-01-11

2011-01-11

Bahta, Kidest (Department: 2123)

Data processing: generic control systems or specific application

Specific application, apparatus or process

Product assembly or manufacturing

C700S159000

Reexamination Certificate

active

07869897

ABSTRACT:
If the angle α formed between the interpolated cutting surface perpendicular direction vector (It, Jt, Kt) and the interpolated tool direction vector (Ttx, Tty, Ttz) becomes smaller, movement of a tool becomes unstable. In this case, the tool diameter compensation vector (TCx, TCy, TCz) is set to the tool diameter compensation vector calculated in the immediately previous interpolation cycle, thereby preventing unstable movement. Further, in case of a block instruction where a distance between positions in cutting point instructions is large whereas distance of movement of linear axis control point is small, an excessive cutting may occur. To deal with this problem, movement of linear axis control point in a current block is stopped or converted into linear movement so as to prevent a loop-shaped movement of the linear axis control point.

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Japanese Notice of Reasons for Rejection mailed Sep. 9, 2008 issued in JP Application No. 2007-131435 (including a partial translation thereof).

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