Jig and device for auxiliary measurement

The utility model belongs to the technical field of auxiliary fixing for product measurement, and particularly relates to a jig and a device for auxiliary measurement. The defects of unreasonable design and the like in the prior art are overcome. The jig for auxiliary measurement comprises a long-strip-block-shaped jig body, a positioning groove is formed in one surface, in the thickness direction, of the jig body, rotary elastic self-adaptive pressing assemblies are arranged at the bottoms of the jig body and the positioning groove respectively, the positioning groove is a through groove, an avoiding through hole is formed in the bottom of the positioning groove, and the elastic self-adaptive pressing assemblies are arranged at the bottoms of the elastic self-adaptive pressing assemblies. A plurality of positioning pins are further arranged at the bottom of the positioning groove, and jig overhead bosses are arranged at the two ends of the surface, away from the positioning groove, of the jig body in the thi