The invention provides a surface
machining device and method aiming at bending
metal pipes of small specifications and relates to the field of
metal pipes. The surface
machining device aiming at bending the
metal pipes of the small specifications is used for bending
pipe bodies and comprises a working table, a placing groove, a bending mechanism, a supporting rod, a cable and multiple
polishing mechanisms. The placing groove is formed in the working table. The bending mechanism is arranged on one side of the placing groove. According to the surface
machining device aiming at bending the metalpipes of the small specifications, by means of cooperation of the cable, a fixing sleeve, a tiny electric pushing rod and a scraper, the whole
polishing mechanism extends into the metal pipes to be bent. The function of filler is achieved, and the interiors can be stressed uniformly when the pipes are bent. After the pipes are bent, the cable is pulled to drive the scraper on the
polishing mechanism to move while the scraper makes contact with
pipe walls. Thus wrinkles generated on the inner walls of bent portions of the pipes are milled flatly, the effect of polishing the inner walls of the metal pipes of the small specifications is achieved, and the situation that due to existence of the wrinkles, the use effect of the pipes is influenced.