User Functions - HEIDENHAIN TNC 640 User Manual

21

User functions

User functions
Short description
Program entry
Position entry
Tool compensation
Tool tables
Constant contour speed
Parallel operation
3-D machining
(Advanced Function Set 2)
Rotary table machining
(Advanced Function Set 1)
Contour elements
Approaching and departing
the contour
FK free contour programming
850
■
Basic version: 3 axes plus closed-loop spindle
■
Fourth NC axis plus auxiliary axis
or
□
8 additional axes or 7 additional axes plus 2nd spindle
■
Digital current and speed control
In HEIDENHAIN conversational format and DIN/ISO
■
Nominal positions for lines and arcs in Cartesian coordinates or polar
coordinates
■
Incremental or absolute dimensions
■
Display and entry in mm or inches
■
Tool radius in the working plane and tool length
■
Radius compensated contour look ahead for up to 99 blocks (M120)
2 Three-dimensional tool-radius compensation for changing tool data
without having to recalculate an existing program
Multiple tool tables with any number of tools
■
With respect to the path of the tool center
■
With respect to the cutting edge
Creating a program with graphical support while another program is being run
2 Motion control with minimum jerk
2 3-D tool compensation through surface-normal vectors
2 Using the electronic handwheel to change the angle of the swivel head
during program run without affecting the position of the tool center
point (tool tip or center of sphere) (TCPM = Tool Center Point Manage-
ment)
2 Keeping the tool normal to the contour
2 Tool radius compensation perpendicular to traversing and tool direction
1 Programming of cylindrical contours as if in two axes
1 Feed rate in distance per minute
■
Straight line
■
Chamfer
■
Circular path
■
Circle center
■
Circle radius
■
Tangentially connected arc
■
Rounded corners
■
Via straight line: tangential or perpendicular
■
Via circular arc
■
FK free contour programming in HEIDENHAIN conversational format
with graphic support for workpiece drawings not dimensioned for NC
HEIDENHAIN | TNC 640 | ISO Programming User's Manual | 10/2017
Tables and Overviews | Technical Information