Checking fixture for degree of symmetry

The utility model discloses a checking fixture for degree of symmetry, which comprises a base plate. A guide rail is connected on the base plate. A slide seat is connected with one side of the guide rail in a sliding way. A thimble mechanism in connected with one side of the slide seat and a positioning core shaft is connected with the other side of the slide seat. A standing plate is vertically connected with the other side of the base plate, two meter clamping supports are connected on one side surface of the standing plate, the meter clamping supports are symmetrical to each other about the centre line of the guide rail, and a dial indicator is clamped on each clamping support. The positioning core shaft is installed between the thimble mechanism and the meter clamping supports. A positioning screw rod is connected on the lower side of the standing plate. The checking fixture solves the problem of the accuracy of checking reciprocation by adopting high-precision fixed guide rail and fixed sliding block, is flexible and quick for operating, and has a high repeatable accuracy. The center of the guide rail and the center of the standing plate are kept in one center line, the dimensional tolerance of the dimension between the inner hole and the bottom of either clamping support is kept same, and the checking accuracy is guaranteed.