HEIDENHAIN TNC 370 User Manual page 100

5 Programming Tool Movements
5.1
5.2
5.3
5.4
5.5
5.6
5.7
5.6
Positioning with Manual Data Input (MDI). .....................................
5-57
General Information on Programming Tool Movements..
.............. 5-2
Contour Approach and Departure
....................................................
5-4
Starting and end positions ........................................................................................
5-4
Smooth approach and departure
..............................................................................
5-6
Path Functions .................................................................................... 5-7
General information
..................................................................................................
5-7
Machine axis movement under program control .....................................................
.5-7
Overview of path functions .......................................................................................
5-8
Path Contours - Cartesian Coordinates
........................................ 5-9
Straight line ...............................................................................................................
5-9
Chamfer .................................................................................................................
.5-l 2
Circles and circular arcs - General information
..................................................... 5-14
Circle center CC ......................................................................................................
5-l 5
Circular path C around the circle center CC.. ......................................................... 5-1 7
Circular path CR with defined radius ......................................................................
5-20
Circular path CT with tangential connection ...........................................................
5-23
Corner rounding
RND .............................................................................................
5-25
Path Contours - Polar Coordinates ..............................................
5-27
Polar coordinate origin: Pole CC .............................................................................
5-27
Straight line
LP
........................................................................................................
5-27
Circular path CP around pole CC ...........................................................................
5-30
Circular path CTP with tangential connection.. .......................................................
5-32
Helical interpolation .................................................................................................
5-33
Contours - FK Free Contour Programming.. .................................
5-36
Programming contour elements
with FK ................................................................ 5-36
Interactive graphics during FK programming .........................................................
5-38
FK Functions ...........................................................................................................
5-39
Free programming of straight lines .........................................................................
5-40
Free programming of circular arcs ..........................................................................
5-44
Identifying closed contours
..................................................................................... 5-47
M Functions for Contouring Behavior and Coordinate
Data ....... 5-51
Smoothing corners:
M90 .........................................................................................
5-51
Machining small contour steps: M97 ......................................................................
5-52
Complete machining
of open contours: M98 ..........................................................
5-53
Setting the coordinates for the datum: M91/M92
................................................... 5-54
Reducing
rotary axis display values to under 360": M94 .......................................
5-55
Optimized
traverse of rotary axes: Ml 26 ............................................................... 5-55
Feed rate at circular arcs: Ml 09/Ml 1 O/Ml 11 ........................................................
5-56