Sealing element fixing tool based on laser arm measurement technology

The invention relates to the technical field of laser measurement, in particular to a sealing element fixing tool based on a laser arm measurement technology, which is used for clamping an annular sealing element and comprises a bottom plate, a chassis, a sliding block, a bolt and a positioning block, the bottom plate and the base plate are integrally machined and formed, and the base plate is a circular boss; the chassis is positioned above the bottom plate; during measurement, the base of the laser arm is fixed on the bottom plate through magnetic attraction, so that relative displacement between the laser arm and the chassis is avoided; n grooves are formed in the base plate at equal-angle intervals with the circle center as the center, and N is larger than or equal to 3. And the edge of each groove is provided with scale marks. According to the fixing tool, the sliding block telescopically moves in the groove, so that the fixing tool is suitable for fixed measurement of sealing elements of different speci