Grinding equipment suitable for outer walls of pipe fittings in different sizes

The invention discloses grinding equipment suitable for outer walls of pipe fittings in different sizes. The grinding equipment comprises a machine tool, an adjustable grinding base is installed on one side of the surface of the machine tool, a clamping fixing base is installed, a transmission adjusting mechanism is installed on the other side of the surface of the machine tool, and meanwhile a limiting rotating base is installed on the transmission adjusting mechanism; and the clamping fixing base and the transmission adjusting mechanism are located on the two sides of the adjustable grindingbase. According to the grinding equipment, the pipe fittings are directly ground through a polishing wheel, then the exteriors of the pipe fittings are ground, repeated use can be realized, environmental pollution is avoided, and the problems that an existing corrosion removing method generally adopts an acid-base cleaning agent for cleaning, the exteriors of the pipe fittings are prone to beingcorroded when the acid-bas