Grinding mould for cambered surface of main ruler of bevel protractor

The utility model provides a bevel protractor main scale cambered surface grinding mould which comprises a bottom plate, a stand column, a height adjusting unit and an angle adjusting unit, the stand column is vertically fixed on the bottom plate, the height adjusting unit used for being matched with grinding is arranged above the stand column, and the angle adjusting unit is arranged above the stand column. An angle adjusting unit used for fixing the bevel protractor main ruler and adjusting the angle of the bevel protractor main ruler is arranged in the middle of the stand column, the position of the bevel protractor main ruler is fixed and adjusted by adjusting the height adjusting unit and the angle adjusting unit, and the cambered surface of the bevel protractor main ruler is measured and ground through an external measuring platform and a flat oilstone. The bevel protractor can fix the bevel protractor main ruler and adjust the angle of the bevel protractor main ruler, the adjusting piece is arranged to