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The present<br />
TRICKS AND TIPS<br />
To close the chapter on the Macro B in the “Tricks and tips” section, we are presenting an example of a programme<br />
that could be applied to a family of parts.<br />
The workpiece below contains a certain number of constants and variables.<br />
We are going to run the programme that will include a certain number of calculations that will enable us to<br />
determine the value of the variables depending on the constants proposed.<br />
Conditions<br />
• The length of the workpiece (#500) varies between 9 mm and 14 mm.<br />
• The diameter of the pivot (#501) varies between 1 mm and 5 mm.<br />
• The workpiece is gripped on the diameter of 6 mm.<br />
• The grip length is equal to the length of the workpiece – less than 4 mm.<br />
• The taper is rough-finished to 0.5 mm of the finish value.<br />
• The taper has a value of 60 degrees.<br />
Alarms<br />
An alarm must appear if:<br />
• The length of the workpiece is outside the fixed limits.<br />
• The diameter of the pivot is outside the fixed limits.<br />
• If the taper cannot be made (workpiece too short or pivot diameter too large).<br />
7<br />
3<br />
Ø6<br />
#501<br />
Ø 7<br />
#502<br />
#504<br />
#500<br />
#503<br />
16 decomagazine<br />
04 / 08
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