Patent Publication Number: US-11396077-B2

Title: Wheel burr cleaning device

Description:
CROSS-REFERENCE TO RELATED APPLICATIONS 
     The present application claims the priority of Chinese patent application No. 201811312712.1, filed on Nov. 6, 2018, which is hereby incorporated by reference in its entirety. 
     TECHNICAL FIELD 
     The present disclosure relates to a burr cleaning device, and specifically relates to a wheel burr cleaning device. 
     BACKGROUND 
     In machining of an aluminum alloy wheel, due to the machining process and tools, burrs are inevitably produced in the center hole of the wheel, the roots of back cavity flanges and the edge of each spoke. If these burrs are not removed in time, the subsequent coating effect will be seriously affected. Due to the limitation of the structure, the postures of brushes need to be adjusted for different treated parts to remove the burrs there more effectively. At the same time, since general wheel manufacturers adopt mixed-line production, that is, wheels of different sizes and different widths are simultaneously circulated on the production line, a device is needed to ensure the burr removing effect while being able to adapt to the mixed line production. 
     SUMMARY 
     The present disclosure is directed to provide a wheel burr cleaning device, which not only can be used for removing burrs from the center hole of a wheel, the roots of flanges and the edge of each spoke, but also can adapt to wheels of different sizes and different widths. 
     In order to achieve the above objective, the technical solution of the present disclosure is, wheel burr cleaning device, is composed of a frame, lower guide pillars, lower guide sleeves, a pulley I, a lower fixed plate, a lower shaft I, a lower bearing block I, a lower lifting plate I, annular guide rails, lower rotating plates, lower racks I, lower gears I, lower guide rails I, lower bottom plates, lower servo motors I, lower vertical plates, upper bottom plates, swivels, gear rings, lower top plates, fixed lugs, lower servo motors II, lower turnover racks, lower servo motors III, lower fixed racks, lower servo motors IV, lower shafts II, lower bearing blocks II, lower servo motors V, lower rotating plates, lower brush wheels I, belt brushes, lower bearing blocks III, lower shafts III, lower brush wheels II, lower gears II, lower servo motors VI, a pulley II, a lower shaft IV, a lower bearing block IV, a lower flange, an anti-rotation pin, a lower bearing block V, a lower shaft V, a pulley III, a lower shaft VI, a lower bearing block VI, a pulley IV, a spline shaft, a rotary joint, a lower cylinder I, an upper flange, a lower guide rail II, a lower sliding plate, a lower rack II, a lower gear III, a lower guide rail III, a lower lifting plate II, a lower shaft VII, a lower bearing block VII, a center brush, a lower servo motor VII, a lower servo motor VIII, a servo electric cylinder, a lower shaft VIII, a lower bearing block VIII, a support block, a synchronous belt I, a pulley V, a synchronous belt II, lower cylinders II, clamping jaws, an upper gear, upper racks, an upper cylinder I, upper guide rails, a left sliding plate, an upper fixed plate, an upper shaft, an upper bearing block, an upper lifting plate, an upper servo motor, upper guide pillars, upper cylinders II, upper guide sleeves, a right sliding plate, a synchronous belt III, a lower servo motor IX, a pulley VI and a right flange. 
     A lower lifting system comprises: the four lower guide sleeves are fixed below a lower fixed plate, and the four lower guide pillars matching with the lower guide sleeves are fixed below the lower lifting plate I; the two lower cylinders II are also fixed below the lower fixed plate, and their output ends are articulated with the lower side of the lower lifting plate I. 
     A lower turnover system comprises: the lower bearing block VI is fixed at an intermediate position above the lower lifting plate I; the lower shaft VI is mounted inside the lower bearing block VI through a bearing; the pulley IV is fixed to the top end of the lower shaft VI; the inner side of the lower shaft VI cooperates with the outer side of the spline shaft; the upper flange is fixed at an intermediate position above the lower lifting plate I; the lower cylinder I is fixed below the top end of the upper flange; the top end of the lower cylinder I is connected to the upper side of the rotary joint; the top end of the spline shaft is connected to the lower side of the rotary joint; the right flange is fixed to the top end of the lower lifting plate I and placed on one side of the lower bearing block VI; the lower servo motor IX is fixed above the top end of the right flange; the pulley VI is fixed to the output end of the lower servo motor IX; the pulley IV and the pulley VI are connected by the synchronous belt III; the lower flange is fixed at an intermediate position below the lower lifting plate I; the lower bearing block V is fixed above the lower flange; the lower shaft V is mounted inside the lower bearing block V through a bearing; the pulley III is fixed to the top end of the lower shaft V; the lower bearing block IV is fixed below the lower flange; the lower shaft IV is mounted inside the lower bearing block IV through a bearing; the pulley II is fixed below the lower shaft IV; the interior of the lower shaft V is hollow, and the hollow diameter is larger than the diameter of the lower end of the spline shaft; the anti-rotation pin is fixed to the lower end the spline shaft; the top end of the lower shaft IV and the lower end of the lower shaft V are respectively provided with an open slot to cooperate with the anti-rotation pin; the lower bearing block I is fixed to the left side of the lower lifting plate I; the lower shaft I is mounted inside the lower bearing block I through a bearing; the pulley I is fixed below the lower shaft I; the top end of the lower shaft I is connected to the lower rotating plate; the pulley I and the pulley II are connected by the synchronous belt II; the lower bearing block VIII is fixed to the right side of the lower lifting plate I; the lower shaft VIII is mounted inside the lower bearing block VIII through a bearing; the pulley V is fixed below the lower shaft VIII; the pulley III and the pulley V are connected by the synchronous belt I; the annular guide rail is fixed above the lower lifting plate I; the support block is mounted between the annular guide rail and the lower rotating plate. 
     A center hole burr brushing system comprises: the lower sliding plate is mounted at the top end of the upper flange through the lower guide rail II; the lower rack II is fixed to the right side of a vertical plate of the lower sliding plate; the lower lifting plate II is mounted on the right side of the vertical plate of the lower sliding plate Via the lower guide rail III; the lower servo motor VIII is fixed to the lower lifting plate II, and the lower gear III is mounted at its output end; the lower gear III meshes with the lower rack II; the servo electric cylinder is fixed on the lower sliding plate, and its output end is connected to the top end of the upper flange; the lower bearing block VII is fixed above a top plate of the lower lifting plate II; the lower shaft VII is mounted inside the lower bearing block VII through a bearing; the center brush is fixed to the top end of the lower shaft VII; the lower servo motor VII is fixed below the top plate of the lower lifting plate II, and its output end is connected to the lower side of the lower shaft VII. 
     A back cavity burr brushing system comprises: the lower rack I is fixed above the lower rotating plate; the lower bottom plate is mounted above the lower rotating plate through the lower guide rail I; the lower servo motor I is fixed above the lower bottom plate; the lower gear I is fixed to the output end of the lower servo motor I; the lower gear I meshes with the lower rack I; the upper bottom plate is fixed to the top end of the lower bottom plate through the lower vertical plate; an outer ring of the swivel is mounted above the upper bottom plate; the lower top plate is fixed above an inner ring of the swivel; the gear ring is fixed inside the inner ring of the swivel; the lower servo motor VI is fixed below the upper bottom plate, and the lower gear II is fixed to its output end; the lower gear II meshes with the inner side of the gear ring; the fixed lug is fixed to the top end of the lower top plate; the lower turnover rack is mounted inside the fixed lug; the lower servo motor II is fixed to the side of the fixed lug, and its output end is connected to the lower side of the lower turnover rack; the lower side of the lower fixed rack is mounted inside the upper side of the lower turnover rack; the lower servo motor III is fixed to the side of the upper side of the lower turnover rack, and its output end is connected to the lower fixed rack; the lower bearing block II is fixed to the right side of the upper side of the lower fixed rack; the lower shaft II is mounted inside the lower bearing block II through a bearing; the lower servo motor IV is fixed to the left side of the lower fixed rack, and its output end is connected to the left side of the lower shaft II; the lower rotating plate is fixed to the right side of the lower shaft II; the lower servo motor V is fixed to the left side of the lower rotating plate, and the lower brush wheel I is fixed to its output end; the lower bearing block III is fixed to the left side of the lower rotating plate; the lower shaft III is mounted inside the lower bearing block III through a bearing; the lower brush wheel II is fixed to the right side of the lower shaft III; the lower brush wheel I and the lower brush wheel II are connected by the belt brush; the right sides of the lower brush wheel I and the lower brush wheel II are provided with bristles; this device comprises two symmetrical back cavity burr brushing systems. 
     An upper lifting rotation system comprises: the four upper guide sleeves are fixed to the top end of the frame; the four upper guide pillars matching with the upper guide sleeves are fixed above the upper lifting plates; the two upper cylinders II are also fixed to the top end of the frame, and their output ends are articulated to the upper side of the upper lifting plate; the upper bearing block is fixed at a center position below the upper lifting plate; the upper shaft is mounted inside the upper bearing block through a bearing; the upper servo motor is fixed above the upper lifting plate, and its output end is connected to the top end of the upper shaft; the upper fixed plate is fixed below the upper shaft; the left sliding plate and the right sliding plate are mounted at two ends below the upper fixed plate through the upper guide rails; the upper gear is fixed at a center position below the upper fixed plate; an upper rack is respectively fixed to the left sliding plate and the right sliding plate, and the two upper racks mesh with the upper gear; the upper cylinder I is fixed below the upper fixed plate, and its output end is connected to the left sliding plate; a clamping jaw is respectively fixed below the left sliding plate and the right sliding plate. 
     During operation, the upper cylinder I drives the clamping jaws to clamp a wheel through the upper racks, the upper gear and the upper guide rails; the upper cylinders II lift the wheel to a certain height through the upper guide pillars and the upper guide sleeves; the upper servo motor drives the clamped wheel to rotate through the upper shaft; the lower cylinders II lift the lower turnover system, the center hole burr brushing system and the back cavity burr brushing systems to certain heights through the lower guide pillars and the lower guide sleeves; the servo motor VII drives the center brush to rotate through the lower shaft VII; the lower servo motor VIII can precisely adjust the height of the center brush through the lower gear III, the lower rack II and the lower guide rail III, so that the center brush extends into the center hole of the rotating wheel; the servo electric cylinder can drive the rotating center brush to move through the lower guide rail II, and when the center brush contacts the center hole of the rotating wheel, the center brush can remove burrs there. 
     The lower servo motor IX drives the lower shaft VI and the spline shaft to rotate through the pulley VI, the pulley IV and the synchronous belt III; when a cylinder rod of the lower cylinder I contracts and the anti-rotation pin cooperates with the open slot at the lower end of the lower shaft V, the spline shaft can drive the lower shaft V and the pulley III to rotate; the pulley III drives the pulley V to rotate through the synchronous belt I, so as to drive the lower shaft VIII and the right back cavity burr brushing system to adjust the angles; when the cylinder rod of the lower cylinder I stretches out and the anti-rotation pin cooperates with the open slot at the top end of the lower shaft IV, the spline shaft can drive the lower shaft IV and the pulley II to rotate; the pulley II drives the pulley I to rotate through the synchronous belt II, so as to drive the lower shaft I and the left back cavity burr brushing system to adjust the angles. 
     The lower servo motor V drives the lower brush wheel I to rotate, and the belt brush also drives the lower brush wheel II to rotate; the lower servo motor IV can adjust the rotation angles of the lower brush wheel I and the lower brush wheel II in the vertical direction through the lower shaft II and the lower rotating plate; the lower servo motor III can adjust the front and rear angles of the lower brush wheel I and the lower brush wheel II; the lower servo motor II can adjust the left and right angles of the lower brush wheel I and the lower brush wheel II; the lower servo motor VI can adjust the rotation angles of the lower brush wheel I and the lower brush wheel II in the horizontal direction through the lower gear II, the gear ring and the swivel; the lower servo motor I can adjust the positions of the lower brush wheel I and the lower brush wheel II in the horizontal direction through the lower gear I, the lower racks I and the lower guide rail I. 
     When burrs at corners of wheel flange roots are removed, the lower servo motors IV adjust the lower brush wheels I and the lower brush wheels II to a horizontal state through the lower shafts II, and the lower cylinders II lift the left and right sets of lower brush wheels I and lower brush wheels II through the lower guide pillars and the lower guide sleeves, and when the left and right rotating belt brushes contact the corners of the wheel flange roots, the burrs there can be removed; when burrs at the edges of wheel spokes are removed, the lower servo motors IV adjust the lower brush wheels I and the lower brush wheels II to a vertical state through the lower shafts II, and the lower servo motors I, the lower servo motors II, the lower servo motors III and the lower servo motors VI adjust the lower brush wheels I and the lower brush wheels II to proper positions and angles; the lower cylinders II lift the left and right sets of lower brush wheels I and lower brush wheels II through the lower guide pillars and the lower guide sleeves, and the upper servo motor drives the wheel to rotate, so that the burrs at the edges of the respective spokes of the wheel can be removed. 
     The wheel burr cleaning device not only can be used for removing burrs from the center hole of the wheel, the roots of the flanges and the edge of each spoke, but also can adapt to the wheels of different sizes and different widths. 
    
    
     
       BRIEF DESCRIPTION OF THE DRAWINGS 
         FIG. 1  is a front view of a wheel burr cleaning device according to the present disclosure. 
         FIG. 2  is a partial left view of wheel burr cleaning device. 
         FIG. 3  is a front view of a back cavity burr brushing system of wheel burr cleaning device. 
         FIG. 4  is a partial front view of a lower turnover system of wheel burr cleaning device. 
         FIG. 5  is a front view of a center hole burr brushing system of wheel burr cleaning device. 
     
    
    
     DETAILED DESCRIPTION 
     The details and working conditions of the specific device according to the present disclosure will be described below in combination with the drawings. 
     The device is composed of a frame  1 , lower guide pillars  2 , lower guide sleeves  3 , a pulley I  4 , a lower fixed plate  5 , a lower shaft I  6 , a lower bearing block I  7 , a lower lifting plate I  8 , annular guide rails  9 , lower rotating plates I  10 , lower racks I  11 , lower gears I  12 , lower guide rails I  13 , lower bottom plates  14 , lower servo motors I  15 , lower vertical plates  16 , upper bottom plates  17 , swivels  18 , gear rings  19 , lower top plates  20 , fixed lugs  21 , lower servo motors II  22 , lower turnover racks  23 , lower servo motors III  24 , lower fixed racks  25 , lower servo motors IV  26 , lower shafts II  27 , lower bearing blocks II  28 , lower servo motors V  29 , lower rotating plates II  30 , lower brush wheels I  31 , belt brushes  32 , lower bearing blocks III  33 , lower shafts III  34 , lower brush wheels II  35 , lower gears II  36 , lower servo motors VI  37 , a pulley II  38 , a lower shaft IV  39 , a lower bearing block IV  40 , a lower flange  41 , an anti-rotation pin  42 , a lower bearing block V  43 , a lower shaft V  44 , a pulley III  45 , a lower shaft VI  46 , a lower bearing block VI  47 , a pulley IV  48 , a spline shaft  49 , a rotary joint  50 , a lower cylinder I  51 , an upper flange  52 , a lower guide rail II  53 , a lower sliding plate  54 , a lower rack II  55 , a lower gear III  56 , a lower guide rail III  57 , a lower lifting plate II  58 , a lower shaft VII  59 , a lower bearing block VII  60 , a center brush  61 , a lower servo motor VII  62 , a lower servo motor VIII  63 , a servo electric cylinder  64 , a lower shaft VIII  65 , a lower bearing block VIII  66 , a support block  67 , a synchronous belt I  68 , a pulley V  69 , a synchronous belt II  70 , lower cylinders II  71 , clamping jaws  72 , an upper gear  73 , upper racks  74 , an upper cylinder I  75 , upper guide rails  76 , a left sliding plate  77 , an upper fixed plate  78 , an upper shaft  79 , an upper bearing block  80 , an upper lifting plate  81 , an upper servo motor  82 , upper guide pillars  83 , upper cylinders II  84 , upper guide sleeves  85 , a right sliding plate  86 , a synchronous belt III  87 , a lower servo motor IX  88 , a pulley VI  89  and a right flange  90 . 
     A lower lifting system comprises: the four lower guide sleeves  3  are fixed below a lower fixed plate  5 , and the four lower guide pillars  2  matching with the lower guide sleeves  3  are fixed below the lower lifting plate I  8 ; the two lower cylinders II  71  are also fixed below the lower fixed plate  5 , and their output ends are articulated with the lower side of the lower lifting plate I  8 . 
     A lower turnover system comprises: the lower bearing block VI  47  is fixed at an intermediate position above the lower lifting plate I  8 ; the lower shaft VI  46  is mounted inside the lower bearing block VI  47  through a bearing; the pulley IV  48  is fixed to the top end of the lower shaft VI  46 ; the inner side of the lower shaft VI  46  cooperates with the outer side of the spline shaft  49 ; the upper flange  52  is fixed at an intermediate position above the lower lifting plate I  8 ; the lower cylinder I  51  is fixed below the top end of the upper flange  52 ; the top end of the lower cylinder I  51  is connected to the upper side of the rotary joint  50 ; the top end of the spline shaft  49  is connected to the lower side of the rotary joint  50 ; the right flange  90  is fixed to the top end of the lower lifting plate I  8  and placed on one side of the lower bearing block VI  47 ; the lower servo motor IX  88  is fixed above the top end of the right flange  90 ; the pulley VI  89  is fixed to the output end of the lower servo motor IX  88 ; the pulley IV  48  and the pulley VI  89  are connected by the synchronous belt III  87 ; the lower flange  41  is fixed at an intermediate position below the lower lifting plate I  8 ; the lower bearing block V  43  is fixed above the lower flange  41 ; the lower shaft V  44  is mounted inside the lower bearing block V  43  through a bearing; the pulley III  45  is fixed to the top end of the lower shaft V  44 ; the lower bearing block IV  40  is fixed below the lower flange  41 ; the lower shaft IV  39  is mounted inside the lower bearing block IV  40  through a bearing; the pulley II  38  is fixed below the lower shaft IV  39 ; the interior of the lower shaft V  44  is hollow, and the hollow diameter is larger than the diameter of the lower end of the spline shaft  49 ; the anti-rotation pin  42  is fixed to the lower end the spline shaft  49 ; the top end of the lower shaft IV  39  and the lower end of the lower shaft V  44  are respectively provided with an open slot to cooperate with the anti-rotation pin  42 ; the lower bearing block I  7  is fixed to the left side of the lower lifting plate I  8 ; the lower shaft I  6  is mounted inside the lower bearing block I  7  through a bearing; the pulley I  4  is fixed below the lower shaft I  6 ; the top end of the lower shaft I  6  is connected to the lower rotating plate I  10 ; the pulley I  4  and the pulley II  38  are connected by the synchronous belt II  70 ; the lower bearing block VIII  66  is fixed to the right side of the lower lifting plate I  8 ; the lower shaft VIII  65  is mounted inside the lower bearing block VIII  66  through a bearing; the pulley V  69  is fixed below the lower shaft VIII  65 ; the pulley III  45  and the pulley V  69  are connected by the synchronous belt I  68 ; the annular guide rail  9  is fixed above the lower lifting plate I  8 ; the support block  67  is mounted between the annular guide rail  9  and the lower rotating plate I  10 . 
     A center hole burr brushing system comprises: the lower sliding plate  54  is mounted at the top end of the upper flange  52  through the lower guide rail II  53 ; the lower rack II  55  is fixed to the right side of a vertical plate of the lower sliding plate  54 ; the lower lifting plate II  58  is mounted on the right side of the vertical plate of the lower sliding plate  54  Via the lower guide rail  11157 ; the lower servo motor VIII  63  is fixed to the lower lifting plate II  58 , and the lower gear III  56  is mounted at its output end; the lower gear III  56  meshes with the lower rack II  55 ; the servo electric cylinder  64  is fixed on the lower sliding plate  54 , and its output end is connected to the top end of the upper flange  52 ; the lower bearing block VII  60  is fixed above a top plate of the lower lifting plate II  58 ; the lower shaft VII  59  is mounted inside the lower bearing block VII  60  through a bearing; the center brush  61  is fixed to the top end of the lower shaft VII  59 ; the lower servo motor VII  62  is fixed below the top plate of the lower lifting plate II  58 , and its output end is connected to the lower side of the lower shaft VII  59 . 
     A back cavity burr brushing system comprises: the lower rack I  11  is fixed above the lower rotating plate I  10 ; the lower bottom plate  14  is mounted above the lower rotating plate I  10  through the lower guide rail I  13 ; the lower servo motor I  15  is fixed above the lower bottom plate  14 ; the lower gear I  12  is fixed to the output end of the lower servo motor I  15 ; the lower gear I  12  meshes with the lower rack I  11 ; the upper bottom plate  17  is fixed to the top end of the lower bottom plate  14  through the lower vertical plate  16 ; an outer ring of the swivel  18  is mounted above the upper bottom plate  17 ; the lower top plate  20  is fixed above an inner ring of the swivel  18 ; the gear ring  19  is fixed inside the inner ring of the swivel  18 ; the lower servo motor VI  37  is fixed below the upper bottom plate  17 , and the lower gear II  36  is fixed to its output end; the lower gear II  36  meshes with the inner side of the gear ring  19 ; the fixed lug  21  is fixed to the top end of the lower top plate  20 ; the lower turnover rack  23  is mounted inside the fixed lug  21 ; the lower servo motor II  22  is fixed to the side of the fixed lug  21 , and its output end is connected to the lower side of the lower turnover rack  23 ; the lower side of the lower fixed rack  25  is mounted inside the upper side of the lower turnover rack  23 ; the lower servo motor III  24  is fixed to the side of the upper side of the lower turnover rack  23 , and its output end is connected to the lower fixed rack  25 ; the lower bearing block II  28  is fixed to the right side of the upper side of the lower fixed rack  25 ; the lower shaft II  27  is mounted inside the lower bearing block II  28  through a bearing; the lower servo motor IV  26  is fixed to the left side of the lower fixed rack  25 , and its output end is connected to the left side of the lower shaft II  27 ; the lower rotating plate II  30  is fixed to the right side of the lower shaft II  27 ; the lower servo motor V  29  is fixed to the left side of the lower rotating plate II  30 , and the lower brush wheel I  31  is fixed to its output end; the lower bearing block III  33  is fixed to the left side of the lower rotating plate II  30 ; the lower shaft III  34  is mounted inside the lower bearing block III  33  through a bearing; the lower brush wheel II  35  is fixed to the right side of the lower shaft III  34 ; the lower brush wheel I  31  and the lower brush wheel II  35  are connected by the belt brush  32 ; the right sides of the lower brush wheel I  31  and the lower brush wheel II  35  are provided with bristles; this device comprises two symmetrical back cavity burr brushing systems. 
     An upper lifting rotation system comprises: the four upper guide sleeves  85  are fixed to the top end of the frame  1 ; the four upper guide pillars  83  matching with the upper guide sleeves  85  are fixed above the upper lifting plates  81 ; the two upper cylinders II  84  are also fixed to the top end of the frame  1 , and their output ends are articulated to the upper side of the upper lifting plate  81 ; the upper bearing block  80  is fixed at a center position below the upper lifting plate  81 ; the upper shaft  79  is mounted inside the upper bearing block  80  through a bearing; the upper servo motor  82  is fixed above the upper lifting plate  81 , and its output end is connected to the top end of the upper shaft  79 ; the upper fixed plate  78  is fixed below the upper shaft  79 ; the left sliding plate  77  and the right sliding plate  86  are mounted at two ends below the upper fixed plate  78  through the upper guide rails  76 ; the upper gear  73  is fixed at a center position below the upper fixed plate  78 ; an upper rack  74  is respectively fixed to the left sliding plate  77  and the right sliding plate  86 , and the two upper racks  74  mesh with the upper gear  73 ; the upper cylinder I  75  is fixed below the upper fixed plate  78 , and its output end is connected to the left sliding plate  77 ; a clamping jaw  72  is respectively fixed below the left sliding plate  77  and the right sliding plate  86 . 
     During operation, the upper cylinder I  75  drives the clamping jaws  72  to clamp a wheel through the upper racks  74 , the upper gear  73  and the upper guide rails  76 ; the upper cylinders II  84  lift the wheel to a certain height through the upper guide pillars  83  and the upper guide sleeves  85 ; the upper servo motor  82  drives the clamped wheel to rotate through the upper shaft  79 ; the lower cylinders II  71  lift the lower turnover system, the center hole burr brushing system and the back cavity burr brushing systems to certain heights through the lower guide pillars  2  and the lower guide sleeves  3 ; the servo motor VII  62  drives the center brush  61  to rotate through the lower shaft VII  59 ; the lower servo motor VIII  63  can precisely adjust the height of the center brush  61  through the lower gear III  56 , the lower rack II  55  and the lower guide rail III  57 , so that the center brush  61  extends into the center hole of the rotating wheel; the servo electric cylinder  64  can drive the rotating center brush  61  to move through the lower guide rail II  53 , and when the center brush  61  contacts the center hole of the rotating wheel, the center brush  61  can remove burrs there. 
     The lower servo motor IX  88  drives the lower shaft VI  46  and the spline shaft  49  to rotate through the pulley VI  89 , the pulley IV  48  and the synchronous belt III  87 ; when a cylinder rod of the lower cylinder I  51  contracts and the anti-rotation pin  42  cooperates with the open slot at the lower end of the lower shaft V  44 , the spline shaft  49  can drive the lower shaft V  44  and the pulley III  45  to rotate; the pulley III  45  drives the pulley V  69  to rotate through the synchronous belt I  68 , so as to drive the lower shaft VIII  65  and the right back cavity burr brushing system to adjust the angles; when the cylinder rod of the lower cylinder I  51  stretches out and the anti-rotation pin  42  cooperates with the open slot at the top end of the lower shaft IV  39 , the spline shaft  49  can drive the lower shaft IV  39  and the pulley II  38  to rotate; the pulley II  38  drives the pulley I  4  to rotate through the synchronous belt II  70 , so as to drive the lower shaft I  6  and the left back cavity burr brushing system to adjust the angles. 
     The lower servo motor V  29  drives the lower brush wheel I  31  to rotate, and the belt brush  32  also drives the lower brush wheel II  35  to rotate; the lower servo motor IV  26  can adjust the rotation angles of the lower brush wheel I  31  and the lower brush wheel II  35  in the vertical direction through the lower shaft II  27  and the lower rotating plate II  30 ; the lower servo motor III  24  can adjust the front and rear angles of the lower brush wheel I  31  and the lower brush wheel II  35 ; the lower servo motor II  22  can adjust the left and right angles of the lower brush wheel I  31  and the lower brush wheel II  35 ; the lower servo motor VI  37  can adjust the rotation angles of the lower brush wheel I  31  and the lower brush wheel II  35  in the horizontal direction through the lower gear II  36 , the gear ring  19  and the swivel  18 ; the lower servo motor I  15  can adjust the positions of the lower brush wheel I  31  and the lower brush wheel II  35  in the horizontal direction through the lower gear I  12 , the lower racks I  11  and the lower guide rail I  13 . 
     When burrs at corners of wheel flange roots are removed, the lower servo motors IV  26  adjust the lower brush wheels I  31  and the lower brush wheels II  35  to a horizontal state through the lower shafts II  27 , and the lower cylinders II  71  lift the left and right sets of lower brush wheels I  31  and lower brush wheels II  35  through the lower guide pillars  2  and the lower guide sleeves  3 , and when the left and right rotating belt brushes  32  contact the corners of the wheel flange roots, the burrs there can be removed; when burrs at the edges of wheel spokes are removed, the lower servo motors IV  26  adjust the lower brush wheels I  31  and the lower brush wheels II  35  to a vertical state through the lower shafts II  27 , and the lower servo motors I  15 , the lower servo motors II  22 , the lower servo motors III  24  and the lower servo motors VI  37  adjust the lower brush wheels I  31  and the lower brush wheels II  35  to proper positions and angles; the lower cylinders II  71  lift the left and right sets of lower brush wheels I  31  and lower brush wheels II  35  through the lower guide pillars  2  and the lower guide sleeves  3 , and the upper servo motor  82  drives the wheel to rotate, so that the burrs at the edges of the respective spokes of the wheel can be removed.