beautypg.com

1 fundamentals, Overview, Effect of coordinate transformations – HEIDENHAIN TNC 640 (34059x-05) Cycle programming User Manual

Page 254: Fundamentals

background image

Cycles: Coordinate Transformations

10.1

Fundamentals

10

254

TNC 640 | User's Manual Cycle Programming | 1/2015

10.1

Fundamentals

Overview

Once a contour has been programmed, you can position it on the
workpiece at various locations and in different sizes through the
use of coordinate transformations. The TNC provides the following
coordinate transformation cycles:

Cycle

Soft key

Page

7 DATUM
For shifting contours directly within
the program or from datum tables

255

247 DATUM SETTING
Datum setting during program run

261

8 MIRRORING
Mirroring contours

262

10 ROTATION
Rotating contours in the working
plane

264

11 SCALING FACTOR

Increasing or reducing the size of
contours

266

26 AXIS-SPECIFIC SCALING

Increasing or reducing the size of
contours with axis-specific scaling

267

19 WORKING PLANE Machining
in tilted coordinate system on
machines with swivel heads and/or
rotary tables

269

Effect of coordinate transformations

Beginning of effect: A coordinate transformation becomes effective
as soon as it is defined—it is not called separately. It remains in
effect until it is changed or canceled.

To cancel coordinate transformations:

Define cycles for basic behavior with a new value, such as
scaling factor 1.0

Execute a miscellaneous function M2, M30, or an END PGM
block (depending on machine parameter

clearMode).

Select a new program