frame 1 the upper and lower ends of each of the two rollers 19 are mounted in the bracket 18 through bearings the second belt pulleys 22 are separately mounted above the two rollers 19 the second motor 23 is mounted above the bracket 18 and the first belt pulley 20 is mounted at an output end of the second motor 23 the first belt pulley 20 and the second belt pulleys 22 are connected through the synchronizing belt 21 and the device includes two clamp units i e a left clamp unit and a right clamp unit a profile of the profiling roller brush 25 is determined according to the shape of a front surface of a wheel and the left and right ends of the profiling roller brush 25 are mounted in the upper mounting frame 26 through bearings the third motor 24 is fixed at one side of the upper mounting frame 26 and an output end of the third motor 24 is connected with one end of the profiling roller brush 25 the second bearing block 28 is fixed below the upper rising and falling plate 29 and the second shaft 27 is mounted in the second bearing block 28 through a bearing the fourth motor 30 is fixed above the upper rising and falling plate 29 and an output end of the fourth motor 30 is connected with the upside of the second shaft 27 four third guide posts 31.