GSK988T Turning CNC System User Manual
104
Ⅰ
Programming
the surface of workpiece with diameter changing.
Surface speed=spindle speed× |X| ×
π
÷1000 (m/min)
Spindle speed: r/min
|X|: absolute value of X absolute coordinate value (diameter value), mm
π≈
3.14
Fig. 2-66
In G96, the spindle speed is changed along with the absolute value of programming path X
absolute coordinate value in the course of cutting feed (interpolation), but it is not changed in G00
because there is no actual cutting and is counted based on the surface speed of end point in the
program block.
In G96, Z coordinates axis of workpiece system must consist with the axes of spindle (rotary
axis of workpiece), otherwise, there is different between the actual surface speed and the defined
one.
When the constant surface speed is valid, G50 S_ can limit max. spindle speed (r/min). The
actual spindle speed is the limit value of max. speed when the spindle speed counted by the
surface speed and X coordinate value is more than the max. spindle speed set by G50 S_. After
the system powers on, max. spindle speed limit value is not defined and its function is invalid. Max.
spindle speed limit value defined by G50 S_ is reserved before it is defined again and its function
is valid in G96. Max. spindle speed defined by G50 S_ is invalid in G97 but its limit value is
reserved.
Note 1: G96, G97 are modal in the same group, and one of them is valid in the same time. G97 is initial
word and is valid after the system is turned on.
Note 2: In G96, S value commanded is reserved in G97. there is no new S is commanded and the S value in
the last G96 state is recovered to the current valid surface speed after the system returns to G96
state, the system outputs the least surface speed in G96 when there is no saved value.
Note 3: From G96 to G97, if none of S command (r/min) is commanded in the program block in G97, the
last spindle speed in G96 is taken as S command in G97, namely, the spindle speed is not changed
at this time;
Note 4: The constant surface speed control function is still valid when the machine is locked(X, Z do not
move when the system executes X, Z motion commands);
Note 5: In G96, when the spindle speed counted by the cutting surface speed is more than max. speed of
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Страница 15: ...Chapter 1 Programming Fundamentals 1 Ⅰ Programming Ⅰ PROGRAMMING ...
Страница 16: ...GSK988T Turning CNC System User Manual 2 Ⅰ Programming ...
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Страница 195: ...Chapter Ⅰ Overview 181 Ⅱ Operation Ⅱ OPERATION ...
Страница 196: ...GSK988T Turning CNC System User Manual 182 Ⅱ Operation ...
Страница 215: ...Chapter Ⅲ Windows 201 Ⅱ Operation Note It can be displayed after U disk is inserted in the U disk catalog ...
Страница 217: ...Chapter Ⅲ Windows 203 Ⅱ Operation ...
Страница 267: ...Chapter Ⅲ Windows 253 Ⅱ Operation Fig 3 51 Fig 3 52 ...
Страница 412: ...GSK988T Turning CNC system User Manual 398 Appendix Fig 3 5 Horizontal operation panel appearance dimension ...