HEIDENHAIN TNC 620 (73498x-02) - Manual (Page 24)

Contents
24
TNC 620 | User's Manual
HEIDENHAIN Conversational Programming | 5/2013
6 Programming: Programming contours........................................................................................ 179
6.1 Tool movements................................................................................................................................... 180
Path functions........................................................................................................................................ 180
FK free contour programming (Advanced programming features software option)............................... 180
Miscellaneous functions M.................................................................................................................... 180
Subprograms and program section repeats.......................................................................................... 181
Programming with Q parameters.......................................................................................................... 181
6.2 Fundamentals of Path Functions........................................................................................................182
Programming tool movements for workpiece machining...................................................................... 182
6.3 Approaching and departing a contour...............................................................................................186
Overview: Types of paths for contour approach and departure.............................................................186
Important positions for approach and departure....................................................................................187
Approaching on a straight line with tangential connection: APPR LT.................................................... 189
Approaching on a straight line perpendicular to the first contour point: APPR LN................................ 189
Approaching on a circular path with tangential connection: APPR CT...................................................190
Approaching on a circular path with tangential connection from a straight line to the contour: APPR
LCT......................................................................................................................................................... 191
Departing in a straight line with tangential connection: DEP LT........................................................... 191
Departing in a straight line perpendicular to the last contour point: DEP LN........................................ 192
Departing on a circular path with tangential connection: DEP CT.........................................................193
Departing on a circular arc tangentially connecting the contour and a straight line: DEP LCT............... 193
6.4 Path contours - Cartesian coordinates...............................................................................................194
Overview of path functions................................................................................................................... 194
Straight line L......................................................................................................................................... 195
Inserting a chamfer between two straight lines....................................................................................196
Corner rounding RND.............................................................................................................................197
Circle center CC..................................................................................................................................... 198
Circular path C around circle center CC................................................................................................ 199
Circle CR with defined radius................................................................................................................ 200
Circle CT with tangential connection..................................................................................................... 202
Example: Linear movements and chamfers with Cartesian coordinates............................................... 203
Example: Circular movements with Cartesian coordinates................................................................... 204
Example: Full circle with Cartesian coordinates.................................................................................... 205