Working rack of angle grinder

A working rack of an angle grinder comprises a supporting bottom plate, a supporting base fixedly arranged on the supporting bottom plate, a sliding rod fixedly arranged on the supporting base in the horizontal direction, a support fixedly arranged on the supporting bottom plate and a cutting groove formed in the supporting bottom plate, and a supporting plate connected to the supporting bottom plate through a thread pair. The supporting base is connected with an angle grinder support through a rotating pair, the angle grinder support is connected with an angle grinder through a thread pair, an adjusting lead screw base is installed on the supporting bottom plate through a thread pair, an adjusting lead screw is installed on the adjusting lead screw base through a thread pair, a pressing block is arranged at one end of the adjusting lead screw, and a rotating handle is arranged at the other end of the adjusting lead screw. The supporting bottom plate is further provided with a supporting bottom plate fastenin