GSK GSK988TA, Manual

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GSK988TA/GSK988TA1/GSK988TB Turning Center CNC System User Manual 【 Programming & Operation 】
184
Ⅰ
Programming
In toolsetting, the tool nose is also imaginary tool nose point of Tn (n=0~9) when taking
Tn(n=0~9) as imaginary tool nose. For the same tool, offset value from standard point to tool
nose radius center (imaginary tool nose is T3) is different with that of ones from standard point to
imaginary tool nose(imaginary tool nose is T3) when T0 and T3 tool nose points are selected to
toolsetting in rear tool post coordinate system, taking tool post center as standard point. It is
easier to measure distances from the standard point to the tool nose radius center than from the
standard point to the imaginary tool nose, and so set the tool offset value by measuring distance
from the standard point to the imaginary tool nose(tool nose direction of T3).
Fig. 4-10 Tool offset value of tool post center as benchmark
4.1.4 G40/G41/G42 Command function
Taking the previous and the current position increment as the programmed path can cancel the
tool compensation mode, and its direction is the compensation direction of the previous. When
the system specifies
（ I, J ） , （ I, K ） or （ J, K ） , the vector defined by it can replace the current position
increment to execute the count.
Command format:
_ _ _
01
00
42
41
19
18
17
Zp Yp Xp
G
G
G
G
G
G
G
⎭
⎬
⎫
⎩
⎨
⎧
⎭
⎬
⎫
⎩
⎨
⎧
⎪
⎭
⎪
⎬
⎫
⎪
⎩
⎪
⎨
⎧
In machining workpiece, the tool offset cannot easily compensate the precise workpiece because
of the tool nose circle degree but the tool nose radius compensation function can automatically
compensate the error.
G40 Xp Yp Zp I J K