Auxiliary device for measuring symmetry difference value of thin plate

Abstract

The utility model belongs to the field of tool design, and particularly relates to an auxiliary device for measuring the symmetry difference value of a thin plate. Comprising a dial indicator, a pointer, an upper plate, a supporting column, a lower plate, an adjusting screw and a fastening screw, a rod of the dial indicator penetrates through a through hole in the axis of the upper plate, and the adjusting screw penetrates through a through hole in the side face of the upper plate to be screwed with the rod of the dial indicator; external threads at the upper end of the pointer are screwed into a threaded blind hole at the lower end of a rod of the dial indicator, and the lower end of the pointer passes through a through hole at the center line of the upper plate; four corners of the upper plate and four corners of the lower plate are respectively provided with a countersunk through hole, the lower plate is placed on the platform and is in contact with the plane of the thin plate, the four supporting columns are correspondingly placed at the positions of the countersunk holes in the periphery of the lower plate, the upper plate is placed above the other ends of the four supporting columns, and the fastening screws respectively penetrate through the countersunk through holes of the upper plate and the lower plate and are screwed into the threaded blind holes of the supporting columns; the device provided by the utility model is simple in operation, achieves the measurement of the symmetry degree of the thin plate, is high in detection precision, reduces the detection cost, and improves the detection efficiency.

Images