Technological equipment suitable for precise grinding of quartz glass thin-wall part and grinding method

The invention relates to technological equipment suitable for precise grinding of a quartz glass thin-wall part and a grinding method. The equipment comprises a workpiece positioning tool and a detachable combined type grinding wheel. The workpiece positioning tool comprises a base, a mounting ring, a radial alignment disc, an axial alignment disc and a workpiece pressing block, wherein the base is fixedly sleeved with the mounting ring, and the radial alignment disc, the axial alignment disc and the workpiece pressing block are arranged in the mounting ring. A part mounting hole is formed in the center of the axial alignment disc; a mounting groove is formed in one side of the part mounting hole in a communicating mode, and a puller screw mounting hole is formed in the outer side of the mounting groove; the workpiece pressing block is a rectangular block of which the inner end is provided with an arc surface; the shape of the arc surface is matched with that of a part mounting hole in ...