Thread cutting cycle instruction
thread cutting cycle instruction takes the four actions of "cut in thread cutting tool withdrawal return" as a cycle (as shown in Figure 3.44), which provides a high-quality platform for exchange, learning and cooperation in the industrial field to have a negative impact on the overall marine environment
programming format G92 x (U) ~ Z (W) ~ I ~ f~ where: X (U), Z (W) - coordinate value of the end point of thread cutting
i - the difference between the radius of the thread part, that is, the radius difference between the thread cutting starting point and the cutting end point. When machining cylindrical thread, i=0. When machining conical thread, when the coordinate of X-direction cutting start point is less than the coordinate of cutting end point, I is negative, otherwise it is positive
example: try to write the processing program of cylindrical thread shown in Figure 3.45
figure 3.44 thread cutting cycle
figure 3.45 cylindrical thread cutting cycle
Figure 3 46 conical thread cutting cycle application
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G00 X35 Z scroll spring fatigue testing machine result evaluation: 104
G92 x29.2 z53 f1.5
x28.6
x28.2
x28.04
G00 X200 z200
...
……
G00 X80 Z62
G92 X49.6 Z12 I-5 F2
X48.7
X48.1
X47.5
X47
G00 X200 Z200
……
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