The invention provides a bent
pipe sanding
machine which comprises a
machine frame, a motor fixing frame, a motor, a
retainer plate fixing seat, a
retainer plate, a sanding wheel, a dust collection
pipe, a control box, a disc, a dustproof disc, a fixed gear, a gear fixing disc, a bearing, an outer snap spring, a snap spring check ring,
abrasive belt power wheels, a driven gear shaft,
abrasive belt distance deviation preventing wheels, an
abrasive belt gap adjusting component, abrasive belt tightness deviation preventing wheels, an abrasive belt tightness adjusting component and abrasive belts. The abrasive belt gap adjusting component can adjust the gap between the two abrasive belts so that the abrasive belts can be used for sanding and
polishing bent pipes of different sizes. V-shaped grooves are formed in the circumference of the curved surface of each abrasive belt deviation preventing wheel and achieve the functions of deviation prevention, sliding prevention and falling prevention for the abrasive belts. The problem that in traditional bent
pipe polishing operation, a whole bent pipe can only be sanded and polished by continuously changing the polished face of the bent pipe is solved, the
production cycle is shortened, work efficiency is greatly improved, labor cost is lowered, and the rate of finished products is high.