Automatic grinding system for automobile hub

Abstract

The invention belongs to the field of automobile hubs, and particularly relates to an automatic automobile hub grinding system which comprises a grinding platform, a telescopic column is arranged above the grinding platform, a supporting block is arranged at the output end of the telescopic column, a first motor is arranged on the supporting block, and a rotating disc is arranged at the output end of the first motor; a fixing mechanism is arranged on the rotating disc, and the fixing mechanism is used for clamping and positioning a hub; a shaking mechanism is arranged on the grinding platform and used for shaking off chippings on the hub. By arranging the fixing mechanism, automatic grinding treatment on the peripheral side wall of the hub is achieved, the working efficiency is higher, meanwhile, the fixing effect on the hub is better, the hub is not prone to shaking in the grinding process, and the grinding quality of the hub is improved; and through the arrangement of the shaking mechanism, chippings attached to the hub are shaken off in time, the chippings are prevented from adhering to the hub, and salient points are prevented from appearing in the subsequent paint spraying process.

Description

Technical Field

[0001] The invention belongs to the field of automobile wheel hubs, and in particular relates to an automatic grinding system for automobile wheel hubs. Background Art

[0002] The wheel hub is a cylindrical metal part whose inner contour supports the tire and whose center is mounted on the shaft. After the automobile wheel hub is processed, it needs to be polished by a polishing device to grind away the debris on it, making the wheel hub smoother and ensuring the flatness of the paint base during subsequent painting.

[0003] At present, the existing grinding device still has the following technical problems when grinding the wheel hub:

[0004] 1. During grinding, the peripheral side wall of the wheel hub cannot be fully ground automatically, and the work efficiency is low. At the same time, the wheel hub is prone to shaking during the grinding process, resulting in poor grinding effect of the wheel hub;

[0005] 2. When grinding, the debris generated cannot be cleaned in time, causing the debris to stick to the wheel hub in a hot state, resulting in convex spots during subsequent painting;

[0006] 3. During grinding, since the peripheral side wall of the wheel hub is arranged in an arc shape, the grinding wheel cannot fit the peripheral side wall of the wheel hub well, which may easily damage the wheel hub. Summary of the invention

[0007] The purpose of the present invention is to address the problems raised in the above-mentioned background technology and to provide an automated grinding system for automobile wheel hubs that can realize automated grinding of the circumferential side walls of the wheel hubs, while preventing the wheel hubs from shaking easily during the grinding process and promptly shaking off debris attached to the wheel hubs.

[0008] In order to achieve the above object, the present invention adopts the following technical solutions:

[0009] An automatic grinding system for automobile wheel hubs, comprising:

[0010] A grinding platform, wherein a telescopic column is provided above the grinding platform, a support block is provided on the output end of the telescopic column, a first motor is provided on the support block, and a rotating disk is provided on the output end of the first motor;

[0011] The rotating disk is provided with a fixing mechanism, and the fixing mechanism is used to clamp and position the wheel hub;

[0012] The grinding platform is provided with a shaking mechanism, and the shaking mechanism is used to shake off the debris on the wheel hub;

[0013] The grinding platform is provided with a grinding mechanism, and the grinding mechanism is used for performing arc-shaped grinding on the peripheral side wall of the wheel hub.

[0014] Preferably, the fixing mechanism includes a fixing column, two cylinders, two first racks, two first hinge seats, two positioning plates, two first gears, two telescopic rods, four second hinge seats, two connecting rods and two arc-shaped abutment plates, the fixing column is installed on the rotating disk, two cylinders are arranged on the fixing column, a first rack is arranged on the output end of each of the cylinders, two first hinge seats are arranged on the fixing column, a positioning plate is hinged on each of the first hinge seats, a first gear is arranged at the axis center of each of the positioning plates, each of the first gears is meshed with the first rack, two telescopic rods are arranged on the fixing column, a second hinge seat is arranged on each of the telescopic rods and the first rack, a connecting rod is hinged between the two second hinge seats, and an arc-shaped abutment plate is arranged on the side of each of the telescopic rods close to the inner wall of the wheel hub.

[0015] Preferably, the shaking mechanism includes a guide rail, a guide wheel and a cleaning mechanism. The guide rail is installed above the grinding platform. The guide wheel is rotatably installed on the lower wall of the rotating disk. The guide wheel rolls in contact with the guide rail. A cleaning mechanism is provided above the grinding platform, and the cleaning mechanism is used to sweep away debris on the wheel hub.

[0016] Preferably, the cleaning mechanism includes a first side plate, a first slide plate, two limiting rings, a first slider, a first extension rod, a third hinge seat, a swinging plate, a second gear and a second rack, the first side plate is installed on the grinding platform, the first slide plate is slidably installed on the first side plate, two limiting rings are provided on the grinding platform, the first slider is slidably installed between the two limiting rings, the first slider is fixedly connected to the first slide plate through the first extension rod, the first slide plate is hinged with a swinging plate through the third hinge seat, the second gear is installed on the axis of the swinging plate, the first side plate is provided with a second rack, and the second gear and the second rack are meshed with each other.

[0017] Preferably, the grinding mechanism includes a second side plate, a second slide plate, a second slider, a second extension rod, a hydraulic cylinder, a lifting plate, a moving block, a C-shaped plate, a grinding wheel, a second motor, an abutment wheel and an arc-shaped track, the second side plate is installed on the grinding platform, the second side plate is slidably installed with the second slide plate, the second slider is slidably installed between two limit rings, the second slider is fixedly connected to the second slide plate through the second extension rod, a hydraulic cylinder is provided on the second slide plate, a lifting plate is provided on the output end of the hydraulic cylinder, a moving block is slidably installed on the lifting plate, a C-shaped plate is provided on the moving block, a grinding wheel is rotatably installed between the upper and lower walls of the C-shaped plate, a second motor is provided below the C-shaped plate, the output end of the second motor is fixedly connected to the axis center of the grinding wheel, an abutment wheel is rotatably installed on the C-shaped plate, an arc-shaped track is provided on the second slide plate, and the abutment wheel contacts and rolls with the arc-shaped track.

[0018] Preferably, trapezoidal protrusions are intermittently provided on the guide rail.

[0019] Preferably, bristles are provided at one end of the swing plate close to the hub.

[0020] Preferably, the shape of the arc-shaped track fits the peripheral side wall of the hub.

[0021] Compared with the existing technology, the advantages of this automobile wheel hub automatic grinding system are:

[0022] 1. The present invention sets a fixing mechanism. Before grinding, the wheel hub is placed on the rotating disk, and then the first rack is driven to move by two cylinders. Further, under the action of the first gear, the positioning plate is changed from a vertical state to a horizontal state, so as to limit and fix the upper part of the wheel hub. At the same time, the movement of the first rack will also drive the arc-shaped abutment plate to abut against the inner wall of the wheel hub through the second hinge seat and the connecting rod, so as to fix the wheel hub to the fixing column. When the first motor drives the rotating disk to rotate, the wheel hub can rotate synchronously, so as to realize the automatic grinding of the peripheral side wall of the wheel hub, with higher work efficiency and better fixing effect on the wheel hub, so that the wheel hub is not easy to shake during the grinding process, thereby improving the grinding quality of the wheel hub.

[0023] 2. The present invention sets a shaking mechanism. During grinding, the rotating disk and the wheel hub are driven to rotate by the first motor. During this process, the guide wheel at the bottom of the rotating disk can perform circular motion along the guide track. The guide wheel is driven to perform reciprocating vertical displacement through the protrusion of the guide track, so that the rotating disk and the wheel hub above it can be reciprocated and raised, and the debris attached to the wheel hub can be shaken off in time to prevent the debris from sticking to the wheel hub, thereby avoiding the occurrence of convex spots during subsequent painting.

[0024] 3. The present invention sets a cleaning mechanism. During grinding, the rotating disk performs reciprocating vertical displacement, driving the first slide plate to perform reciprocating vertical displacement on the first side plate, thereby driving the swing plate to perform reciprocating vertical displacement. Through the meshing of the second gear and the second rack, the swing plate can swing during the reciprocating vertical displacement, thereby reciprocatingly sweeping away the debris attached to the peripheral wall of the wheel hub, thereby improving the cleaning effect of the wheel hub and making the subsequent cleaning work of the wheel hub more convenient.

[0025] 4. The present invention sets a grinding mechanism. When the rotating disk performs reciprocating vertical displacement, it will also drive the second slide plate to perform reciprocating vertical displacement on the second side plate, so that the second slide plate is consistent with the wheel hub on the rotating disk. When grinding, the hydraulic cylinder is turned on to make the lifting plate slide on the second slide plate, thereby driving the moving block and the grinding wheel on the lifting plate to perform reciprocating lifting and lowering relative to the wheel hub. When the grinding wheel reciprocates and lifts, the abutting wheel moves on the arc track, so that the moving trajectory of the grinding wheel fits the peripheral side wall of the wheel hub, thereby ensuring the grinding effect while avoiding damage to the wheel hub. BRIEF DESCRIPTION OF THE DRAWINGS

[0026] Figure 1 It is a three-dimensional structural schematic diagram of the automobile wheel hub automatic grinding system provided by the present invention;

[0027] Figure 2 yes Figure 1 The enlarged view of point A in the middle;

[0028] Figure 3 It is a three-dimensional structural schematic diagram of another angle of the automobile wheel hub automatic grinding system provided by the present invention;

[0029] Figure 4 yes Figure 3 The enlarged view of point B in the middle;

[0030] Figure 5 It is a cross-sectional view of the wheel hub in the automobile wheel hub automatic grinding system provided by the present invention;

[0031] Figure 6 yes Figure 5 Enlarged view of point C in the middle;

[0032] Figure 7 It is a structural schematic diagram of the shaking mechanism in the automobile wheel hub automatic grinding system provided by the present invention;

[0033] Figure 8 It is a cross-sectional view of a limit ring in the automobile wheel hub automatic grinding system provided by the present invention.

[0034] In the figure, 1, grinding platform; 11, telescopic column; 12, support block; 13, first motor; 14, rotating disk; 2, fixing mechanism; 21, fixing column; 22, cylinder; 23, first rack; 24, first hinge seat; 25, positioning plate; 26, first gear; 27, telescopic rod; 28, second hinge seat; 29, connecting rod; 210, arc-shaped abutment plate; 3, shaking mechanism; 31, guide track; 32, guide wheel; 33, cleaning mechanism; 331, first side plate; 332, first Slide plate; 333, limit ring; 334, first slider; 335, first extension rod; 336, third hinge seat; 337, swing plate; 338, second gear; 339, second rack; 4, grinding mechanism; 41, second side plate; 42, second slide plate; 43, second slider; 44, second extension rod; 45, hydraulic cylinder; 46, lifting plate; 47, moving block; 48, C-shaped plate; 49, grinding wheel; 410, second motor; 411, abutment wheel; 412, arc track. DETAILED DESCRIPTION

[0035] The following examples are for illustrative purposes only and are not intended to limit the scope of the present invention.

[0036] like Figure 1-Figure 8 As shown, an automatic grinding system for automobile wheel hubs comprises:

[0037] A grinding platform 1, a telescopic column 11 is provided above the grinding platform 1, a support block 12 is provided on the output end of the telescopic column 11, a first motor 13 is provided on the support block 12, and a rotating disk 14 is provided on the output end of the first motor 13;

[0038] A fixing mechanism 2 is provided on the rotating disk 14, and the fixing mechanism 2 is used to clamp and position the wheel hub;

[0039] A shaking mechanism 3 is provided on the grinding platform 1, and the shaking mechanism 3 is used to shake off the debris on the wheel hub;

[0040] A grinding mechanism 4 is provided on the grinding platform 1, and the grinding mechanism 4 is used for performing arc-shaped grinding on the peripheral side wall of the wheel hub.

[0041] The fixing mechanism 2 includes a fixing column 21, two cylinders 22, two first racks 23, two first hinge seats 24, two positioning plates 25, two first gears 26, two telescopic rods 27, four second hinge seats 28, two connecting rods 29 and two arc-shaped abutment plates 210. The fixing column 21 is installed on the rotating disk 14. Two cylinders 22 are provided on the fixing column 21. The output end of each cylinder 22 is provided with a first rack 23. The fixing column 21 is provided with two first hinges. A connecting seat 24, each first hinged seat 24 is hinged with a positioning plate 25, a first gear 26 is provided at the axis of each positioning plate 25, each first gear 26 is meshed with the first rack 23, two telescopic rods 27 are provided on the fixed column 21, each telescopic rod 27 and the first rack 23 are provided with a second hinged seat 28, a connecting rod 29 is hinged between the two second hinged seats 28, and each telescopic rod 27 is provided with an arc-shaped abutment plate 210 on one side close to the inner wall of the hub.

[0042] In view of the problem that the prior art cannot automatically perform comprehensive grinding on the peripheral side wall of the wheel hub, the work efficiency is low, and the wheel hub is prone to shaking during the grinding process, resulting in a poor grinding effect of the wheel hub, the present invention provides a fixing mechanism 2. Before grinding, the wheel hub is placed on the rotating disk 14, and then the first rack 23 is driven to move by two cylinders 22, and the positioning plate 25 is further changed from a vertical state to a horizontal state under the action of the first gear 26, so as to limit and fix the upper part of the wheel hub. At the same time, the movement of the first rack 23 will also drive the telescopic rod 27 to extend through the second hinge seat 28 and the connecting rod 29, so that the arc-shaped abutment plate 210 abuts against the inner wall of the wheel hub, and the wheel hub is fixed to the fixing column 21. When the first motor 13 drives the rotating disk 14 to rotate, the wheel hub can rotate synchronously, thereby realizing the automatic grinding of the peripheral side wall of the wheel hub, with higher work efficiency and better fixing effect on the wheel hub, so that the wheel hub is not easy to shake during the grinding process, thereby improving the grinding quality of the wheel hub.

[0043] The shaking mechanism 3 includes a guide rail 31, a guide wheel 32 and a cleaning mechanism 33. The guide rail 31 is installed above the grinding platform 1. The guide wheel 32 is rotatably installed on the lower wall of the rotating disk 14. The guide wheel 32 rolls in contact with the guide rail 31. A cleaning mechanism 33 is provided above the grinding platform 1, and the cleaning mechanism 33 is used to sweep away debris on the wheel hub.

[0044] Among them, trapezoidal protrusions are intermittently provided on the guide track 31. When the guide wheel 32 performs a circular motion along the guide track 31, the trapezoidal protrusions lift the guide wheel 32 reciprocatingly and make it fall reciprocatingly under the action of gravity.

[0045] In view of the problem that the prior art cannot clean the generated debris in time, which causes the debris to easily stick to the wheel hub in a hot state, resulting in the problem of bumps easily appearing during subsequent painting, the present invention provides a shaking mechanism 3. During grinding, the rotating disk 14 and the wheel hub are driven to rotate by the first motor 13. During this process, the guide wheel 32 at the bottom of the rotating disk 14 is able to perform a circular motion along the guide track 31. The trapezoidal protrusion of the guide track 31 drives the guide wheel 32 to perform a reciprocating vertical displacement, so that the rotating disk 14 and the wheel hub above it can be lifted and lowered reciprocatingly, and the debris attached to the wheel hub can be shaken off in time to prevent the debris from sticking to the wheel hub, thereby avoiding bumps appearing during subsequent painting.

[0046] The cleaning mechanism 33 includes a first side plate 331, a first slide plate 332, two limiting rings 333, a first slider 334, a first extension rod 335, a third hinge seat 336, a swing plate 337, a second gear 338 and a second rack 339. The first side plate 331 is installed on the grinding platform 1. The first slide plate 332 is slidably installed on the first side plate 331. Two limiting rings 333 are provided on the grinding platform 1. The first slider 334 is slidably installed between the two limiting rings 333. The first slider 334 is fixedly connected to the first slide plate 332 through the first extension rod 335. The swing plate 337 is hinged on the first slide plate 332 through the third hinge seat 336. The second gear 338 is installed on the axis of the swing plate 337. The first side plate 331 is provided with a second rack 339. The second gear 338 and the second rack 339 are meshed with each other.

[0047] The end of the swing plate 337 close to the wheel hub is provided with bristles, and the bristles enable the swing plate 337 to sweep away debris on the wheel hub during the reciprocating swinging process.

[0048] In order to improve the cleaning effect of the wheel hub, the present invention sets a cleaning mechanism 33. During grinding, the rotating disk 14 performs reciprocating vertical displacement, driving the first slide plate 332 to perform reciprocating vertical displacement on the first side plate 331, thereby driving the swing plate 337 to perform reciprocating vertical displacement. Through the engagement of the second gear 338 and the second rack 339, the swing plate 337 can swing during the reciprocating vertical displacement, thereby reciprocatingly sweeping away the debris attached to the peripheral wall of the wheel hub, thereby improving the cleaning effect of the wheel hub and making the subsequent cleaning work of the wheel hub more convenient.

[0049] The grinding mechanism 4 includes a second side plate 41, a second slide plate 42, a second slider 43, a second extension rod 44, a hydraulic cylinder 45, a lifting plate 46, a moving block 47, a C-shaped plate 48, a grinding wheel 49, a second motor 410, an abutment wheel 411 and an arc-shaped track 412. The second side plate 41 is installed on the grinding platform 1, and the second slide plate 42 is slidably installed on the second side plate 41. The second slider 43 is slidably installed between the two limit rings 333. The second slider 43 is fixedly connected to the second slide plate 42 through the second extension rod 44. The second slide plate 4 2 is provided with a hydraulic cylinder 45, and a lifting plate 46 is provided on the output end of the hydraulic cylinder 45. A moving block 47 is slidably installed on the lifting plate 46, and a C-shaped plate 48 is provided on the moving block 47. A grinding wheel 49 is rotatably installed between the upper and lower walls of the C-shaped plate 48. A second motor 410 is provided below the C-shaped plate 48, and the output end of the second motor 410 is fixedly connected to the axis of the grinding wheel 49. An abutting wheel 411 is rotatably installed on the C-shaped plate 48, and an arc-shaped track 412 is provided on the lifting plate 46. The abutting wheel 411 contacts and rolls with the arc-shaped track 412.

[0050] Among them, the shape of the arc-shaped track 412 fits the peripheral wall of the wheel hub. Therefore, when the abutment wheel 411 moves along the arc-shaped track 412, the moving trajectory of the grinding wheel 49 can be driven to fit the curvature of the peripheral wall of the wheel hub, thereby ensuring the grinding effect of the peripheral wall of the wheel hub.

[0051] Among them, the moving block 47 is elastically installed on the lifting plate 46 through a spring, so that when the grinding wheel 49 moves from a wider area to a smaller area, the abutment wheel 411 can be close to the arc-shaped track 412, thereby ensuring that the grinding wheel 49 is always grinding along the peripheral wall of the hub.

[0052] In view of the fact that the peripheral side wall of the wheel hub in the prior art is arranged in an arc shape, which makes it difficult for the grinding wheel 49 to fit the peripheral side wall of the wheel hub well, and the wheel hub is easily damaged, the present invention provides a grinding mechanism 4, which will also drive the second slide plate 42 to make a reciprocating vertical displacement on the second side plate 41 when the rotating disk 14 is reciprocatingly displaced, so that the second slide plate 42 is consistent with the wheel hub on the rotating disk 14. During grinding, the hydraulic cylinder 45 is turned on to make the lifting plate 46 slide on the second slide plate 42, thereby driving the moving block 47 and the grinding wheel 49 on the lifting plate 46 to reciprocate and rise and fall relative to the wheel hub. When the grinding wheel 49 is reciprocatingly lifted and lowered, the abutting wheel 411 moves on the arc-shaped track 412, so that the moving trajectory of the grinding wheel 49 fits the peripheral side wall of the wheel hub, thereby ensuring the grinding effect while avoiding damage to the wheel hub.

[0053] Among them, the first slider 334 and the second slider 43 can both rotate between the two limit rings 333, so that when the rotating disk 14 is raised or lowered, the first extension rod 335 and the second extension rod 44 can drive the first slide plate 332 and the second slide plate 42 to be raised or lowered synchronously, so that the cleaning mechanism 33 and the grinding mechanism 4 are always synchronized with the wheel hub on the rotating disk 14, thereby ensuring the cleaning effect and grinding effect of the wheel hub. In actual use, the wheel hub can be ground, debris can be shaken off and debris can be swept away, thereby improving work efficiency.

[0054] The present invention can be explained by the following operation mode:

[0055] Before grinding, align the center of the wheel hub with the fixed column 21 of the rotating disk 14, place the wheel hub on the rotating disk 14, then start the cylinder 22 to drive the first rack 23 to move, and under the action of the first gear 26, the positioning plate 25 is changed from a vertical state to a horizontal state, and the upper part of the wheel hub is limited and fixed. At the same time, the telescopic rod 27 is extended through the second hinge seat 28 and the connecting rod 29, and the arc-shaped abutment plate 210 is abutted against the inner wall of the wheel hub, and the wheel hub is fixed to the fixed column 21. When the first motor 13 drives the rotating disk 14 to rotate, the wheel hub can rotate synchronously, thereby realizing the automatic grinding of the peripheral wall of the wheel hub, and at the same time, the wheel hub is not easy to shake during the grinding process;

[0056] During grinding, the first motor 13, the second motor 410 and the hydraulic cylinder 45 are turned on;

[0057] The first motor 13 drives the rotating disk 14 and the wheel hub to rotate. During this process, the guide wheel 32 at the bottom of the rotating disk 14 can perform a circular motion along the guide track 31. The guide wheel 32 is driven to perform a reciprocating vertical displacement through the trapezoidal protrusion of the guide track 31, so that the rotating disk 14 and the wheel hub above it can be reciprocated and lifted, and the debris attached to the wheel hub can be shaken off in time.

[0058] When the rotating disk 14 is lifted and lowered reciprocatingly, the first slide plate 332 drives the swing plate 337 to perform reciprocating vertical displacement, and the second gear 338 is meshed with the second rack 339, so that the swing plate 337 can swing during the reciprocating vertical displacement, thereby reciprocatingly sweeping away the debris attached to the peripheral wall of the wheel hub, and at the same time, the second slide plate 42 is synchronously reciprocated vertically, so that the grinding mechanism 4 is always synchronized with the wheel hub, thereby ensuring the grinding effect of the wheel hub;

[0059] The hydraulic cylinder 45 drives the lifting plate 46 to slide on the second slide plate 42, thereby driving the moving block 47 and the grinding wheel 49 on the lifting plate 46 to reciprocate relative to the wheel hub. When the grinding wheel 49 reciprocates, the abutting wheel 411 moves on the arc track 412, so that the moving track of the grinding wheel 49 fits the peripheral side wall of the wheel hub.

[0060] The second motor 410 drives the grinding wheel 49 to rotate, thereby grinding the peripheral wall of the wheel hub.

[0061] The above description is only a preferred embodiment of the present invention and is not intended to limit the present invention. Any modifications, equivalent substitutions, improvements, etc. made within the spirit and principle of the present invention should be included in the protection scope of the present invention.

Claims

1. An automatic grinding system for automobile wheels, characterized in that: include: A grinding platform (1), wherein a telescopic column (11) is provided above the grinding platform (1), a support block (12) is provided at the output end of the telescopic column (11), a first motor (13) is provided on the support block (12), and a rotating disk (14) is provided at the output end of the first motor (13); The rotating disk (14) is provided with a fixing mechanism (2), and the fixing mechanism (2) is used to clamp and position the wheel hub; The grinding platform (1) is provided with a shaking mechanism (3), and the shaking mechanism (3) is used to shake off the debris on the wheel hub; The grinding platform (1) is provided with a grinding mechanism (4), and the grinding mechanism (4) is used to perform arc-shaped grinding on the peripheral side wall of the wheel hub.

2. The automobile wheel hub automatic grinding system according to claim 1, characterized in that: The fixing mechanism (2) comprises a fixing column (21), two cylinders (22), two first racks (23), two first hinge seats (24), two positioning plates (25), two first gears (26), two telescopic rods (27), four second hinge seats (28), two connecting rods (29) and two arc-shaped abutment plates (210). The fixing column (21) is mounted on the rotating disk (14). Two cylinders (22) are arranged on the fixing column (21). The output end of each cylinder (22) is provided with a first rack (23). The fixing column (21) is provided with two first hinge seats (24). A connecting seat (24), each of the first hinged seats (24) is hinged with a positioning plate (25), a first gear (26) is provided at the axis of each positioning plate (25), each of the first gears (26) is meshed with the first rack (23), two telescopic rods (27) are provided on the fixed column (21), each of the telescopic rods (27) and the first rack (23) is provided with a second hinged seat (28), a connecting rod (29) is hinged between the two second hinged seats (28), and each of the telescopic rods (27) is provided with an arc-shaped abutment plate (210) on one side close to the inner wall of the hub.

3. The automobile wheel hub automatic grinding system according to claim 1, characterized in that: The shaking mechanism (3) comprises a guide rail (31), a guide wheel (32) and a cleaning mechanism (33); the guide rail (31) is installed above the grinding platform (1); the guide wheel (32) is rotatably installed on the lower wall of the rotating disk (14); the guide wheel (32) rolls in contact with the guide rail (31); a cleaning mechanism (33) is provided above the grinding platform (1); the cleaning mechanism (33) is used to sweep away debris on the wheel hub.

4. The automobile wheel hub automatic grinding system according to claim 3, characterized in that: The cleaning mechanism (33) comprises a first side plate (331), a first slide plate (332), two limiting rings (333), a first slider (334), a first extension rod (335), a third hinge seat (336), a swing plate (337), a second gear (338) and a second rack (339); the first side plate (331) is mounted on the grinding platform (1); the first slide plate (332) is slidably mounted on the first side plate (331); and the grinding platform (1) is provided with two limiting rings (333). A first slider (334) is slidably installed between the two limiting rings (333), the first slider (334) is fixedly connected to the first slide plate (332) through a first extension rod (335), a swing plate (337) is hinged on the first slide plate (332) through a third hinge seat (336), a second gear (338) is installed on the axis of the swing plate (337), a second rack (339) is provided on the first side plate (331), and the second gear (338) and the second rack (339) are meshed with each other.

5. The automobile wheel hub automatic grinding system according to claim 4, characterized in that: The grinding mechanism (4) comprises a second side plate (41), a second slide plate (42), a second slider (43), a second extension rod (44), a hydraulic cylinder (45), a lifting plate (46), a moving block (47), a C-shaped plate (48), a grinding wheel (49), a second motor (410), an abutment wheel (411) and an arc-shaped track (412); the second side plate (41) is mounted on the grinding platform (1); the second slide plate (42) is slidably mounted on the second side plate (41); the second slider (43) is slidably mounted between two limit rings (333); the second slider (43) is fixedly connected to the second slide plate (42) via the second extension rod (44); the second slide plate (4 2) is provided with a hydraulic cylinder (45), a lifting plate (46) is provided on the output end of the hydraulic cylinder (45), a moving block (47) is slidably mounted on the lifting plate (46), a C-shaped plate (48) is provided on the moving block (47), a grinding wheel (49) is rotatably mounted between the upper and lower walls of the C-shaped plate (48), a second motor (410) is provided below the C-shaped plate (48), the output end of the second motor (410) is fixedly connected to the axis of the grinding wheel (49), an abutment wheel (411) is rotatably mounted on the C-shaped plate (48), an arc-shaped track (412) is provided on the second slide plate (42), and the abutment wheel (411) contacts and rolls with the arc-shaped track (412).

6. The automobile wheel hub automatic grinding system according to claim 3, characterized in that: Trapezoidal protrusions are intermittently arranged on the guide rail (31).

7. The automobile wheel hub automatic grinding system according to claim 4, characterized in that: The swing plate (337) is provided with bristles at one end close to the wheel hub.

8. The automobile wheel hub automatic grinding system according to claim 5, characterized in that: The shape of the arc-shaped track (412) fits the peripheral side wall of the wheel hub.

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