HEIDENHAIN TNC 640 - ... At a glance Overview - User functions, accessories, options, specifications, comparison of controls

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Overview
– User functions
User functions
Default Option
Short description
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0-7
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Basic version: 3 axes plus spindle
4th NC axis plus auxiliary axis
or
A total of 14 additional NC axes or 13 additional NC axes plus second spindle
Digital current and speed control
Program entry
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HEIDENHAIN conversational
DIN/ISO programming
Direct loading of contours or machining positions from DXF files and saving as conversational
contouring program or as point table
Position entry
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Nominal positions for lines and arcs in Cartesian coordinates or polar coordinates
Incremental or absolute dimensions
Display and entry in mm or inches
Tool compensation
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9
Tool radius in the working plane and tool length
Radius-compensated contour look-ahead for up to 99 blocks (M120)
Three-dimensional tool-radius compensation for changing tool data without having to recalculate
an existing program
Tool tables
• Multiple tool tables with any number of tools
Cutting data
• Automatic calculation of spindle speed, cutting speed, feed per tooth and feed per revolution
Constant contour speed
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Relative to the path of the tool center
Relative to the tool’s cutting edge
Parallel operation
• Creating a program with graphical support while another program is being run
3-D machining
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9
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Motion control with highly smoothed jerk
3-D tool compensation through surface normal vectors
Tool Center Point Management (TCPM): Using the electronic handwheel to change the angle of
the swivel head during program run without affecting the position of the tool point
Keeping the tool normal to the contour
Tool radius compensation normal to the tool direction
Manual traverse in the active tool-axis system
Rotary table machining
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8
Programming of cylindrical contours as if in two axes
Feed rate in distance per minute
Turning
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Program-controlled switchover between milling and turning
Constant surface speed
Tool-tip radius compensation
Cycles for roughing, finishing, recessing, thread turning and recess turning
Updating of the workpiece blank during contour cycles
Turning-specific contour elements for recesses and undercuts
Orientation of the turning tool for outside or inside machining
Inclined turning
Speed limiting
Eccentric turning (additionally required: option 135)