HEIDENHAIN TNC 640 (34059x-04) ISO programming - Manual (Page 26)

Contents
26
TNC 640 | User's Manual for DIN/ISO Programming | 3/2014
6 Programming: Programming contours...................................................................................... 195
6.1 Tool movements.................................................................................................................................. 196
Path functions....................................................................................................................................... 196
Miscellaneous functions M...................................................................................................................196
Subprograms and program section repeats......................................................................................... 196
Programming with Q parameters......................................................................................................... 196
6.2 Fundamentals of Path Functions.......................................................................................................197
Programming tool movements for workpiece machining..................................................................... 197
6.3 Approaching and departing a contour............................................................................................. 200
Starting point and end point................................................................................................................. 200
Tangential approach and departure....................................................................................................... 202
Overview: Types of paths for contour approach and departure............................................................203
Important positions for approach and departure...................................................................................204
Approaching on a straight line with tangential connection: APPR LT................................................... 205
Approaching on a straight line perpendicular to the first contour point: APPR LN............................... 205
Approaching on a circular path with tangential connection: APPR CT..................................................206
Approaching on a circular path with tangential connection from a straight line to the contour:
APPR LCT.............................................................................................................................................. 206
Departing in a straight line with tangential connection: DEP LT.......................................................... 207
Departing in a straight line perpendicular to the last contour point: DEP LN....................................... 207
Departing on a circular path with tangential connection: DEP CT........................................................207
Departing on a circular arc tangentially connecting the contour and a straight line: DEP LCT..............208
6.4 Path contours - Cartesian coordinates............................................................................................. 209
Overview of path functions.................................................................................................................. 209
Programming path functions.................................................................................................................209
Straight line in rapid traverse G00 Straight line with feed rate G01 F.................................................. 210
Inserting a chamfer between two straight lines...................................................................................211
Corner rounding G25............................................................................................................................ 212
Circle center I, J................................................................................................................................... 213
Circular path C around circle center CC............................................................................................... 214
CircleG02/G03/G05 with defined radius............................................................................................... 215
Circle G06 with tangential connection..................................................................................................217
Example: Linear movements and chamfers with Cartesian coordinates.............................................. 218
Example: Circular movements with Cartesian coordinates.................................................................. 219
Example: Full circle with Cartesian coordinates................................................................................... 220