HEIDENHAIN SW 548328-05 DIN Programming - Manual (Page 559)

HEIDENHAIN MANUALplus 620, CNC PILOT 620/640
559
8.1 F
undamentals
Tools for the B axis
Another advantage of the B axis is that it allows flexible use of the
tools during turning operations. By tilting the B axis and rotating the
tool you can bring it into positions that enable you to use one and the
same tool to machine in the longitudinal and transverse (or radial and
axial) directions on the main and opposing spindles.
In this way, you need fewer tools and fewer tool changes.
Tool data:
All tools are described in the tool database by specifying
the X, Z and Y dimensions as well as the compensation values. These
dimensions are referenced to the tilt angle B=0° (reference position).
Another parameter that is maintained in the tool database is the
position angle
CW. It defines the working positions of tools that are
not driven tools (turning tools).
The tilt angle of the B axis is not maintained with the tool data. This
angle needs to be defined in the tool call or when inserting the tool.
Tool orientation and position display:
For turning tools, the position
the tool tip is calculated based on the orientation of the cutting edge.
The control calculates the tool orientation of lathe tools by means of
the tool angle and point angle.
BW 180
CW 0
CW 180
BW 180
BW 180 BW 180