Bit grinding machine

The utility model discloses a bit grinding machine which comprises a counter, a chuck mechanism fixedly connected on the counter and a cross-shaped rotating working table arranged on the counter and opposite to the chuck mechanism. The utility model has the advantages that the bit grinding machine is low in cost, simple and compact in structure, light in weight, simple and convenient to operate and small in service power and is suitable for grinding on the construction site; the operating efficiency is high; the bit grinding machine has three functions of cutting, conical surface grinding and alloy drill bit grinding; the scrapped drill rod can be repaired for reuse, thereby saving a lot of steel products and money; and in addition, the bit grinding machine is used for grinding the conical surface by using the grinding wheel, the dimension and the angle are stable, and the product quality is high.