Introduction – HEIDENHAIN iTNC 530 (60642x-04) User Manual

Page 528

528

Programming: Multiple Axis Machining

12.6 Thr

ee-dimensional t

ol compensation (sof

e option

12.6 Three-dimensional tool

compensation (software
option 2)

Introduction

The TNC can carry out a three-dimensional tool compensation (3-D

compensation) for straight-line blocks. Apart from the X, Y and Z

coordinates of the straight-line end point, these blocks must also

contain the components NX, NY and NZ of the surface-normal vector

(see "Definition of a normalized vector" on page 529).
If, in addition, you want to carry out a tool orientation or a three-

dimensional radius compensation, these blocks need also a

normalized vector with the components TX, TY and TZ, which

on page 529).
The straight-line end point, the components for the surface-normal

vector as well as those for the tool orientation must be calculated by

a CAM system.

Application possibilities



Use of tools with dimensions that do not correspond with the

dimensions calculated by the CAM system (3-D compensation

without definition of the tool orientation).



Face milling: compensation of the cutter geometry in the direction

of the surface-normal vector (3-D compensation with and without

definition of the tool orientation). Cutting is usually with the end face

of the tool.



Peripheral milling: compensation of the cutter radius perpendicular

to the direction of movement and perpendicular to the tool direction

(3D radius compensation with definition of the tool orientation).

Cutting is usually with the lateral surface of the tool.