HEIDENHAIN TNC 640 (34059x-05) ISO programming - Manual (Page 28)

Contents
28
TNC 640 | User's ManualDIN/ISO Programming | 1/2015
6 Programming: Programming contours...................................................................................... 203
6.1 Tool movements.................................................................................................................................. 204
Path functions....................................................................................................................................... 204
FK free contour programming.............................................................................................................. 204
Miscellaneous functions M...................................................................................................................204
Subprograms and program section repeats......................................................................................... 205
Programming with Q parameters......................................................................................................... 205
6.2 Fundamentals of Path Functions.......................................................................................................206
Programming tool movements for workpiece machining..................................................................... 206
6.3 Approaching and departing a contour............................................................................................. 209
Starting point and end point................................................................................................................. 209
Tangential approach and departure....................................................................................................... 211
Overview: Types of paths for contour approach and departure............................................................212
Important positions for approach and departure...................................................................................213
Approaching on a straight line with tangential connection: APPR LT................................................... 214
Approaching on a straight line perpendicular to the first contour point: APPR LN............................... 215
Approaching on a circular path with tangential connection: APPR CT..................................................216
Approaching on a circular path with tangential connection from a straight line to the contour:
APPR LCT.............................................................................................................................................. 217
Departing in a straight line with tangential connection: DEP LT.......................................................... 218
Departing in a straight line perpendicular to the last contour point: DEP LN....................................... 218
Departing on a circular path with tangential connection: DEP CT........................................................219
Departing on a circular arc tangentially connecting the contour and a straight line: DEP LCT..............219
6.4 Path contours - Cartesian coordinates............................................................................................. 220
Overview of path functions.................................................................................................................. 220
Programming path functions.................................................................................................................220
Straight line in rapid traverse G00 or straight line with feed rate F G01.............................................. 221
Inserting a chamfer between two straight lines...................................................................................222
Corner rounding G25............................................................................................................................ 223
Circle center I, J................................................................................................................................... 224
Circular path C around circle center CC............................................................................................... 225
CircleG02/G03/G05 with defined radius............................................................................................... 226
Circle G06 with tangential connection..................................................................................................228
Example: Linear movements and chamfers with Cartesian coordinates.............................................. 229
Example: Circular movements with Cartesian coordinates.................................................................. 230
Example: Full circle with Cartesian coordinates................................................................................... 231