
B-63944EN/02 PROGRAMMING 21.5-AXIS MACHINING FUNCTION
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Explanation
- Tool's angle of gradient in type 2
For type 2 of cutter compensation for 5-axis machining, the tool's
angle of gradient can be specified with address Q in a G41.6/G42.6
command block. The tool's angle of gradient refers to the angle by
which the tool direction to be assumed when machining is actually
performed is inclined from the direction specified with (I, J, K) toward
the traveling direction on the plane formed by the tool direction
specified with (I, J, K) and the traveling direction in the programming
coordinate system. (See Fig. 21.4.2 (b).)
Because in general, the normal direction of the machining surface is
specified with (I, J, K), if it is desired to incline the tool direction to be
assumed when machining is actually performed from the normal
direction toward the traveling direction, correction may be performed
with a Q command.
If the direction specified with (I, J, K) matches the tool direction to be
assumed when machining is actually performed, no Q command is
necessary.
Tool direction to be assumed when
machining is actually performed
(Plane perpendicular to the "tool direction to be
assumed when machining is actually performed")
Tool direction
specified with (I, J, K)
Traveling
direction of
machinin
Tool's angle of gradient (Q)
Compensation plane
Tool center path
(path after compensation)
Programmed path
(path before compensation)
Cutter
compensation
vector
Fig. 21.4.2 (b) Tool's angle of gradient in type 2
- Cutter compensation
The cutter compensation function in table rotation type machines
basically performs operations in conformance with cutter
compensation. The operations different from those of cutter
compensation are mainly described below. For the specifications
and cautions not mentioned here, see the description of cutter
compensation.