Numerical control device, and numerical control method

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

2007-10-16

2007-10-16

Cabrera, Zoila (Department: 2125)

Data processing: generic control systems or specific application

Specific application, apparatus or process

Product assembly or manufacturing

C700S193000

Reexamination Certificate

active

10776248

ABSTRACT:
A machine has a tool head which rotates on a C-axis (about the Z-axis) and an A-axis (about the X-axis). A tool length vector is multiplied by a matrix whereby a misalignment component δs-Hand the incline error (αs-H, βs-H, γs-H) of a spindle are corrected so that the tool length vector due to the misalignment of the spindle is obtained. The vector thus obtained is further multiplied by a transformation matrix that includes a rotation instruction α for the A-axis and misalignments of the A-axis δa-H(αa-H, βa-H, γa-H) to correct the misalignment of the A-axis so that the tool length vector as found when the A-axis has rotated by an equivalent of instruction α is determined. The vector thus determined is further multiplied by a transformation matrix that includes a rotation instruction c for the C-axis and misalignments of the C-axis δac-H(αc-H, βc-H, γc-H) to correct the misalignment of the C-axis, so that a tool length vector as found when the C-axis has rotated by an equivalent of instruction c is determined. The tool length vector thus determined is added to the vector of positional instruction values (x, y, z) and a workpiece origin offset vector Mwo-H, so that the machine position Vm-H′ is obtained.

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Notice of Reasons for Rejection dated May 31, 2005.

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