HEIDENHAIN TNC 620 (81760x-02) ISO programming - Manual (Page 28)

Contents
28
TNC 620 | User's ManualDIN/ISO Programming | 2/2015
6 Programming: Programming contours...................................................................................... 199
6.1 Tool movements.................................................................................................................................. 200
Path functions....................................................................................................................................... 200
FK free contour programming (option 19)............................................................................................ 200
Miscellaneous functions M...................................................................................................................200
Subprograms and program section repeats......................................................................................... 201
Programming with Q parameters......................................................................................................... 201
6.2 Fundamentals of path functions....................................................................................................... 202
Programming tool movements for workpiece machining..................................................................... 202
6.3 Approaching and departing a contour............................................................................................. 205
Starting point and end point................................................................................................................. 205
Tangential approach and departure....................................................................................................... 207
Overview: Types of paths for contour approach and departure............................................................208
Important positions for approach and departure...................................................................................209
Approaching on a straight line with tangential connection: APPR LT................................................... 211
Approaching on a straight line perpendicular to the first contour point: APPR LN............................... 211
Approaching on a circular path with tangential connection: APPR CT..................................................212
Approaching on a circular path with tangential connection from a straight line to the contour:
APPR LCT.............................................................................................................................................. 213
Departing in a straight line with tangential connection: DEP LT.......................................................... 214
Departing in a straight line perpendicular to the last contour point: DEP LN....................................... 214
Departing on a circular path with tangential connection: DEP CT........................................................215
Departing on a circular arc tangentially connecting the contour and a straight line: DEP LCT..............215
6.4 Path contours - Cartesian coordinates............................................................................................. 216
Overview of path functions.................................................................................................................. 216
Programming path functions.................................................................................................................216
Straight line in rapid traverse G00 or straight line with feed rate F G01.............................................. 217
Inserting a chamfer between two straight lines...................................................................................218
Corner rounding G25............................................................................................................................ 219
Circle center I, J................................................................................................................................... 220
Circular path C around circle center CC............................................................................................... 221
CircleG02/G03/G05 with defined radius............................................................................................... 222
Circle G06 with tangential connection..................................................................................................224
Example: Linear movements and chamfers with Cartesian coordinates.............................................. 225
Example: Circular movements with Cartesian coordinates.................................................................. 226
Example: Full circle with Cartesian coordinates................................................................................... 227