End face turning jig for sheet workpieces

Abstract

This utility model relates to a machining fixture for turning the end face of thin sheet workpieces. The fixture is mounted on a lathe chuck, which has chuck teeth. It includes a support base, which is cylindrical with its inner end face abutting against the end face of the chuck. The support base has several grooves corresponding to the chuck teeth, evenly distributed around the axis of the support base, with each groove corresponding to a chuck tooth. An annular groove is concentrically formed on the outer end face of the support base, with the diameter of the annular groove corresponding to the size of the thin sheet workpiece. This utility model's machining fixture for turning the end face of thin sheet workpieces, with the annular groove on the support base corresponding to the workpiece edge, allows burrs on the workpiece edge to be placed within the annular groove, thus preventing burrs from pressing against the surface of the support base and reducing the clamping accuracy of the workpiece, affecting the machining quality of the workpiece end face. This significantly improves the machining quality and production efficiency of thin sheet workpieces.

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