How to Compensate the Tool Radius Direction in Five-Axis Linkage Machining

Tool Radius Direction Compensation: The data provided in the interpolation program are only the coordinates of the tool center and the azimuth angle of the tool axis. Tool radius compensation is impossible in practice, because the controller does not know which direction to compensate, and this direction is very important for tool radius compensation. Therefore, in order to compensate tool radius in three-dimensional space in five-axis linkage machining, information such as compensation direction vector must be provided in the NC program section. The FANUC controller uses IJK code to represent the vector that points to the actual tool center after the tool radius compensation is called tool radius compensation vector IJK tool length direction compensation. The coordinates and pendulum coordinates can be input into the interpolation module to make the tool center run according to the programming trajectory.

The program structure is as follows:

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N0100 O0008 (Five-Axis Linkage Processing Program Name)

N0102 M6 T1; (tool change)

N0104 G0 90 G56 X400 Y200 Z260 B0 C0; (Motion to Reference Point)

N0106 G432 X200 Z150 H1 B_; (Length of knife perpendicular to inclined plane)

N0108 M3 S3000; (spindle forward)

N0110 M8; (Open the cutting fluid)

N0112 G68 X188 Y0 Z60 I0J1 K0 R_; (coordinate system conversion, _as the main axis from zero to perpendicular to the inclined plane rotation angle)... N0200 G69; (coordinate system rotation cancelled)

N0202 G492 X200 Z300;

N0204 M9; (Cutting Fluid Gate)

N0206 Calpha; (C axis rotation, alpha is the minimum angle between the vertical line of the nth incline to be machined and the position of the 20th incline)

N0208 G0 G0 90 G56 X400 Y200 Z260 B0 C0; (Motion to Reference Point)

N0210 G432 X200 Z150 H1 B n; (Increase the knife length in the direction perpendicular to the inclined plane)

N0212G68 X188 Y0 Z60 I0J1 K0 R_n; (coordinate system conversion, _n as the main axis from zero to perpendicular to the inclined plane rotation angle)

N0200 G69; (Five-axis coordinate system rotation cancelled)

N0202 G492 X200 Z300;

N0204 M9; (Cutting Fluid Gate)

N0204 M30; (program end, return to program head)