HEIDENHAIN TNC 320 (340 55x-03) - Manual (Page 17)

HEIDENHAIN TNC 320 17
6.1 Tool Movements ..... 138
Path functions ..... 138
FK free contour programming ..... 138
Miscellaneous functions M ..... 138
Subprograms and program section repeats ..... 138
Programming with Q parameters ..... 138
6.2 Fundamentals of Path Functions ..... 139
Programming tool movements for workpiece machining ..... 139
6.3 Contour Approach and Departure ..... 142
Overview: Types of paths for contour approach and departure ..... 142
Important positions for approach and departure ..... 143
Approaching on a straight line with tangential connection: APPR LT ..... 145
Approaching on a straight line perpendicular to the first contour point: APPR LN ..... 145
Approaching on a circular path with tangential connection: APPR CT ..... 146
Approaching on a circular arc with tangential connection from a straight line to the contour: APPR LCT ..... 147
Departing on a straight line with tangential connection: DEP LT ..... 148
Departing on a straight line perpendicular to the last contour point: DEP LN ..... 148
Departure on a circular path with tangential connection: DEP CT ..... 149
Departing on a circular arc tangentially connecting the contour and a straight line: DEP LCT ..... 149
6.4 Path Contours—Cartesian Coordinates ..... 150
Overview of path functions ..... 150
Straight line L ..... 151
Inserting a chamfer CHF between two straight lines ..... 152
Corner rounding RND ..... 153
Circle center CC ..... 154
Circular path C around circle center CC ..... 155
Circular path CR with defined radius ..... 156
Circular path CT with tangential connection ..... 158
6.5 Path Contours—Polar Coordinates ..... 163
Overview ..... 163
Polar coordinate origin: Pole CC ..... 164
Straight line LP ..... 164
Circular path CP around pole CC ..... 165
Circular path CTP with tangential connection ..... 165
Helical interpolation ..... 166
6 Programming: Programming Contours ..... 137