1. General
16
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Tool Length Compensation
There are two kind of ways to specify the value of tool length compensation.
-
Absolute value of tool length compensation (the distance between tool tip and
machine reference point)
-
Incremental value of tool length compensation (the distance between tool tip and
the standard tool)
As it is shown in Figure 1.21, L1 is the tool length on X axis. L2 is the tool length on Z axis.
It should be noted that the tool wear values on X axis or Z axis are also contained in the tool
length compensation.
P=Tool
P=Tool
P=Tool
P=Tool tip
tip
tip
tip
R=Radius
R=Radius
R=Radius
R=Radius
S=Cutting
S=Cutting
S=Cutting
S=Cutting edge
edge
edge
edge center
center
center
center
R
S
L2
L1
P
Figure 1.21 Tool Length Compensation
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Tool Radius Compensation
Figure 1.22 shows the imaginary tool nose as a start position when writing a program.
Tool nose radius center
P
Imaginary tool nose
Figure 1.22 The imaginary tool nose
Содержание HNC-18iT
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