Locating the workpiece in the vise to perform the technological impact

The article outlines the main reasons of inaccuracies when clamping the workpiece in the machine vise. We examine more thoroughly one of them – the imprecision of the workpiece surfaces arrangement. The authors analyze various feasible forms of prismatic workpiece and thereupon they draw the conclusion that after applying the gripping force the workpiece will be in contact with only one vise jaw, notably the one that has smaller deviation from perpendicularity in relation to the setting base. We show the cases when the inaccuracy of clamping is minimal: under the equal deviation from the workpiece side surfaces perpendicularity in relation to the basing plane or under their tilt towards each other.

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