HEIDENHAIN TNC 620 (340 56x-01) - Manual (Page 17)

HEIDENHAIN TNC 620 17
6.1 Tool Movements ..... 146
Path functions ..... 146
FK free contour programming (Advanced programming features software option) ..... 146
Miscellaneous functions M ..... 146
Subprograms and program section repeats ..... 146
Programming with Q parameters ..... 146
6.2 Fundamentals of Path Functions ..... 147
Programming tool movements for workpiece machining ..... 147
6.3 Contour Approach and Departure ..... 150
Overview: Types of paths for contour approach and departure ..... 150
Important positions for approach and departure ..... 151
Approaching on a straight line with tangential connection: APPR LT ..... 153
Approaching on a straight line perpendicular to the first contour point: APPR LN ..... 153
Approaching on a circular path with tangential connection: APPR CT ..... 154
Approaching on a circular arc with tangential connection from a straight line to the contour: APPR LCT ..... 155
Departing on a straight line with tangential connection: DEP LT ..... 156
Departing on a straight line perpendicular to the last contour point: DEP LN ..... 156
Departure on a circular path with tangential connection: DEP CT ..... 157
Departing on a circular arc tangentially connecting the contour and a straight line: DEP LCT ..... 157
6.4 Path Contours—Cartesian Coordinates ..... 158
Overview of path functions ..... 158
Straight line L ..... 159
Inserting a chamfer CHF between two straight lines ..... 160
Corner rounding RND ..... 161
Circle center CC ..... 162
Circular path C around circle center CC ..... 163
Circular path CR with defined radius ..... 164
Circular path CT with tangential connection ..... 166
6.5 Path Contours—Polar Coordinates ..... 171
Overview ..... 171
Polar coordinate origin: Pole CC ..... 172
Straight line LP ..... 172
Circular path CP around pole CC ..... 173
Circular path CTP with tangential connection ..... 173
Helical interpolation ..... 174
6 Programming: Programming Contours ..... 145