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Dimensions of Locating pins

Feb 20, 2018

In fixture design, the selection and calculation of locating pin size is an important problem. One, the selection of cylindrical pin size See figure 1,d_1 for the diameter of the cylindrical pins, d_1 for the cylindrical pin matching the diameter of the hole. In order to fit the workpiece conveniently, hole pins should be left with the appropriate minimum clearance _ (2min), so the diameter of the cylinder pin: D_ (1max) =d_ (1min)-_ (1min) Positioning accuracy requirements can be made _ (1min) = 0, positioning accuracy requirements can be used for promotional activities, Can be expandedcylindrical pins or liquid plastic cylindrical pins to remove the effect of the workpiece hole tolerance zone.