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Calculating sine bar slips - Method B
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Sine bar slips are usually given in the form of tables with standard sine chucks. But often lack of such tables drives engineers to calculate the required sine bar slip. |
Calculating sine bar slips - Method A
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Sine bar slips are usually given in the form of tables with standard sine chucks. But often lack of such tables drives engineers to calculate the required sine bar slip. This calculation method depends on known factors. With above dimensions angle can be calculated in a simple triangle: For sine bar calculation is the required angle which must be produced with a given sine bar length: is known from above calculation. Again, relating to a triangle, we now have related as a sine function using the sine bar: |
Protection split bushing
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Often in precision assembly (especially in gauging) we need to secure metrology equipment or precision components (which often disassembled) by means of a set screw direct clamping. This kind of clamping (tightening directly with a screw) causes surface deformation, burs and craters. |
How to secure a square shape shaft end without a square cut on the mating component
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When we want to prevent the rotation of a shaft we use various methods (pinned, screwed, friction, etc.). One method is to use a shaft with a square shaped end (across flats) and an identical square slot feature on the mating part. |
A beveled (rocking) washer equalizes form inaccuracies
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Often in precision assembly (especially in tooling) we find difficulties to tighten components with form inaccuracies. In order to minimize total inaccuracies we have to grind all surfaces, which in turn increases the cost. |
How to make internal threads on case hardening steel parts - [Leave Soft]
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Often when taping case hardening steel parts many manufactures make a mistake. They apply case hardening to the thread. This could cause strength problems especially if the thread is under dynamic loading. |
An old good principle
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Perhaps the simplest and most valued drafting principle is the old one: “anything that can be sketched can also be calculated”. For many years before (and after) the wide spread of cad-cam (computer aided design and manufacturing), designers in all areas of production used plain trigonometry for calculating the basic dimensions of a design. |
