GSK 980TDi, User Manual

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GSK980TDi Turning CNC System User Manual
74
Ⅰ
Programming
3.10 Cylindrical Interpolation G7.1
Command function
：
The amount of travel of a rotary axis specified by an angle is once
internally converted to a distance of a linear axis along the outer surface
so that linear interpolation or circular interpolation can be performed with
another axis. After interpolation, such a distance is converted back to
the amount of travel of the rotary axis. The cylindrical interpolation
function allows the side of a cylinder to be developed for programming
(below).
Fig.3-35
Command format
：
Code meaning ： Code devides into 3 sections:
(1): Provide a column radius, the column interpolation begins;
(2): Provide the block of the its section of the defined finish-turning path or the
finish-turning residual;
(3): Cancel the column interpolation
There are two programming types of cylinder interpolation, J( Δ i), L(d) , R( Δ d) and
K( Δ u) settings are not desired for the type I; the system operates based upon the
block of the finish-turning path. Type II is the circular interpolation cycle; System is
automatically calculated the rough-turning offset value, single feed value and path
based upon the data such as the finih-turning allowance, total cutting value and
cutting times, etc. The path of each cutting is the offset of the finishing-turning path,
the cutting path is gradually closed to the path of the finish-turning, the last cutting
path is the finish-turning one.
Command explanation:
Type II
G07.1 C(c) J(
Δ i) L(d) R( Δ d) K( Δ u); (1) starting the cylindrical interpolation
…
… (2)
…
G7.1 C0; (3)
cancel the cylindrical interpolation
Type I
G07.1 C(c); (1)
starting the cylindrical interpolation
…
… (2)
…
G7.1 C0; (3)
cancel the cylindrical interpolation
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