Front Cover Of Automotive Special Automized Welding Jig Fixture

Datum Pins will be spring loaded taper pins where possible, concerned engineer needs to be consulted if designer intent to have it any other kind. All tapered datum pins must check off shear where possible, have angle between 5-10º and make sure part located and secure properly.

These locators should have a good slide action with no side play. Spring force should be appropriate to provide a good positive location. Before clamping taper locators should hold part level and part should be held 2mm to 5 mm above the datum surface.

All features (holes, slots, extruded dimples etc) with size tolerance specified on the drawing must have Go/NoGo pins. Go/NoGo pins must be “Progressive” stepped “Go” then “Go/NoGo” on the same side of the pin. Pins for slots (Round or square type slots) must be separate for width and length.

All Go/No Go Pins must be set into suitable holders and should be base mounted (except for the features like extruded Dimples where difficult to see it clearly while mounted on the base) and located over the perimeter of the base. Design will allow the removal of a pin should it become necessary to repair or replace.

Each holder should have a ‘letter’ for identification label; Eurospec will identify the sizes in their Fixture instructions.