Clamp for tappet metallographic polishing

The utility model discloses a clamp for tappet metallographic polishing. The clamp comprises a clamp body, a semi-circular groove is formed in the middle of the clamp body, three through holes are formed in the groove wall of one side of the semi-circular groove, fastening bolts are arranged in the through holes, the three through holes form a triangle on the groove wall, and the semi-circular groove is matched with a sample. By designing the clamp into a whole, the clamping stability is ensured, the polishing quality is greatly improved, and the accuracy of measured parameters can be effectively ensured. 本实用新型公开了一种用于挺柱金相打磨的夹具，包括夹具主体，所述夹具主体的中部开设有半圆型槽，所述半圆型槽一侧的槽壁开设有三个通孔，所述通孔上设有紧固螺栓，三个所述通孔在槽壁上形成三角形状，所述半圆型槽与试样相配套。通过将夹具设计为一个整体，确保装夹稳定性，不仅大大提高打磨质量，且能有效保证测量参数的准确性。