HEIDENHAIN TNC 640 (34059x-02) User Manual
Page 24
Contents
24
TNC 640 | User's Manual
HEIDENHAIN Conversational Programming | 5/2013
6
Programming: Programming contours........................................................................................ 191
6.1
Tool movements................................................................................................................................... 192
Path functions........................................................................................................................................ 192
FK free contour programming................................................................................................................192
Miscellaneous functions M.................................................................................................................... 192
Subprograms and program section repeats.......................................................................................... 193
Programming with Q parameters.......................................................................................................... 193
6.2
Fundamentals of Path Functions........................................................................................................194
Programming tool movements for workpiece machining...................................................................... 194
6.3
Approaching and departing a contour...............................................................................................198
Overview: Types of paths for contour approach and departure.............................................................198
Important positions for approach and departure....................................................................................199
Approaching on a straight line with tangential connection: APPR LT.................................................... 201
Approaching on a straight line perpendicular to the first contour point: APPR LN................................ 201
Approaching on a circular path with tangential connection: APPR CT...................................................202
Approaching on a circular path with tangential connection from a straight line to the contour: APPR
LCT......................................................................................................................................................... 203
Departing in a straight line with tangential connection: DEP LT........................................................... 204
Departing in a straight line perpendicular to the last contour point: DEP LN........................................ 204
Departing on a circular path with tangential connection: DEP CT.........................................................205
Departing on a circular arc tangentially connecting the contour and a straight line: DEP LCT............... 205
6.4
Path contours - Cartesian coordinates...............................................................................................206
Overview of path functions................................................................................................................... 206
Straight line L......................................................................................................................................... 207
Inserting a chamfer between two straight lines....................................................................................208
Corner rounding RND.............................................................................................................................209
Circle center CC..................................................................................................................................... 210
Circular path C around circle center CC................................................................................................ 211
Circle CR with defined radius................................................................................................................ 212
Circle CT with tangential connection..................................................................................................... 214
Example: Linear movements and chamfers with Cartesian coordinates............................................... 215
Example: Circular movements with Cartesian coordinates................................................................... 216
Example: Full circle with Cartesian coordinates.................................................................................... 217