Grinding device for revolution surface of aluminum alloy automobile hub

Abstract

The invention discloses an aluminum alloy automobile hub revolution surface grinding device, and relates to the technical field of hub machining equipment.The aluminum alloy automobile hub revolution surface grinding device comprises a workbench and a hub body, a mechanical arm is arranged on the surface of the workbench, and a grinding mechanism is arranged on the degree of freedom of the mechanical arm; a storage groove is formed in the surface of the workbench, a servo motor is fixedly mounted at the bottom of the inner wall of the storage groove, and the rotary clamping device comprises a transmission shaft, a storage plate, a rotary frame, a support, a roller, an L-shaped clamping rod, a connecting rod and a sleeve. According to the aluminum alloy automobile hub rotation surface grinding device, the inner walls of hub bodies with different inner diameters can be clamped, the applicability of the device is improved, meanwhile, rotation of the hub bodies in the grinding process is achieved through the rotating frame, the grinding mechanism can make full contact with all parts of the hub bodies, and therefore uniform grinding is conducted.

Description

Technical Field

[0001] The invention relates to the technical field of wheel hub processing equipment, in particular to a rotating surface grinding device for an aluminum alloy automobile wheel hub. Background Art

[0002] The aluminum alloy automobile wheel hub rotary surface grinding device is a high-precision grinding equipment specially used in the production process of aluminum alloy wheels. Its main purpose is to perform fine processing on the rotary surface of the wheel hub (i.e. the surface where the wheel hub contacts the tire) to improve its surface quality, reduce surface defects and ensure the performance and appearance quality of the wheel hub.

[0003] The patent with the patent announcement number CN109551358B relates to an automobile wheel hub grinding device with adjustable grinding accuracy, including a processing table, a fixture is fixedly connected at the center of the upper end of the processing table, an electric push rod is fixedly connected to the upper end of the processing table symmetrically about the fixture, a support plate is provided above the processing table, two electric push rods are fixedly connected to the lower end of the support plate at one end away from the processing table, a driving motor is fixedly connected to the center of the lower end of the support plate, the output end of the driving motor is connected to the rotating shaft through a coupling, a card slot is provided at the lower end of the rotating shaft, and a card block is connected in the card slot. This patent can solve the problem that different wheel hubs have different requirements for surface roughness during the grinding process, and the cost of purchasing grinders with different grinding roughness for grinding is too high, and the dust generated during the grinding process is harmful to human health. .

[0004] The above patent can solve the problem that different wheel hubs have different requirements for surface roughness during the grinding process. It is too expensive to purchase grinders with different grinding roughness for grinding, and the dust generated during the grinding process is harmful to human health. However, the inner diameters of different wheel hubs are different, which may affect the clamping accuracy and thus affect the grinding effect. Therefore, a rotating surface grinding device for an aluminum alloy automobile wheel hub with better clamping effect is designed. Summary of the invention

[0005] In view of the deficiencies in the prior art, the present invention provides a device for grinding the rotary surface of an aluminum alloy automobile wheel hub, which solves the problems raised in the above-mentioned background technology.

[0006] To achieve the above objectives, the present invention is implemented through the following technical solutions: an aluminum alloy automobile wheel hub rotary surface grinding device, including a workbench and a wheel hub body, the surface of the workbench is provided with a mechanical arm, the freedom of the mechanical arm is provided with a grinding mechanism, the surface of the workbench is provided with a storage groove, the bottom of the inner wall of the storage groove is fixedly installed with a servo motor, and also includes: a rotating clamping device, the rotating clamping device includes a transmission shaft, a storage plate, a rotating frame, a bracket, a roller, an L-shaped clamping rod, a connecting rod and a sleeve, the sleeve moves downward to drive one end of the connecting rod to move downward, and one end of the connecting rod moves downward to drive the L-shaped clamping rod to a direction away from the transmission shaft through the other end. The transmission shaft is fixedly installed on the output end of the servo motor, the storage plate is fixedly installed on the inner wall of the storage groove, the rotating frame is rotatably installed on the inner wall of the storage plate, the bracket is fixedly installed under the rotating frame, the roller is rotatably installed on the circumferential surface of the bracket, the L-shaped clamp rod is slidably installed on the top of the rotating frame, the connecting rod is rotatably installed on the top of the L-shaped clamp rod, the sleeve is rotatably installed on the end of the connecting rod away from the L-shaped clamp rod, a spiral groove is provided on the surface of the transmission shaft, the sleeve is connected to the transmission shaft by a thread, and the L-shaped clamp rod moves to contact the inner wall of the hub body and clamps and fixes it, thereby effectively clamping the hub bodies with different inner diameters.

[0007] According to the above technical solution, four L-shaped clamping rods are provided, and the four L-shaped clamping rods are evenly distributed with the transmission shaft as the center, so as to improve the clamping effect on the hub body; four brackets are provided, and the four brackets are evenly distributed with the transmission shaft as the center, so as to maintain the stability of the rotating frame during rotation; the rotation of the roller can convert the sliding friction into rolling friction, thereby reducing the stress between the sleeve and the transmission shaft, extending the service life of the equipment, and reducing the subsequent maintenance cost.

[0008] According to the above technical solution, a rubber block is fixedly installed at one end of the L-shaped clamp rod away from the transmission shaft. The rubber block can prevent the L-shaped clamp rod from directly colliding with the hub body and thus reduce wear. A No. 1 spring is arranged between the L-shaped clamp rod and the rotating frame. The No. 1 spring can drive the L-shaped clamp rod to reset.

[0009] According to the above technical scheme, a chip collecting device for collecting debris generated during the grinding process is provided inside the storage trough, and the chip collecting device includes a blower and a filter plate, the blower is fixedly passed through the bottom of the workbench, and the filter plate is fixedly installed on the inner wall of the storage trough, and the chip collecting device also includes a brush plate, an arc rod, a material guide pipe and a collection frame, the rotation of the rotating frame drives the arc rod to rotate, and the rotation of the arc rod sweeps the debris collected above the filter plate into the inside of the collection frame, the brush plate is fixedly installed below the rotating frame, the arc rod is fixedly installed on the circumferential surface of the rotating frame, the material guide pipe is fixedly passed through the upper and lower walls of the filter plate, a slide groove is opened on the surface of the workbench, and the collection frame is slidably installed inside the slide groove, and the rotation of the rotating frame drives the brush plate to rotate, and the rotation of the brush plate can sweep the debris on the surface of the storage plate to the top of the filter plate through the guide groove.

[0010] According to the above technical solution, a material guide groove is opened on the surface of the storage plate, the brush plate contacts the top of the storage plate, the arc rod contacts the top of the filter plate, the bottom of the rotating frame contacts the filter plate, and the transmission shaft rotates through the upper and lower walls of the filter plate.

[0011] According to the above technical solution, a protrusion is fixedly installed on the circumferential surface of the rotating frame, and a receiving block is fixedly installed above the filter plate. The side of the protrusion away from the rotating frame is set as arc surface one, and the top of the receiving block is set as arc surface two. The protrusion rotates to contact the receiving block and generate vibration, and the vibration can prevent debris and powder from being adsorbed on the top of the filter plate under the action of wind pressure.

[0012] According to the above technical scheme, it also includes a limiting device, which includes a limiting plate, a baffle, a sliding plate and a receiving rod. During the movement of the collection frame, the sliding plate is contacted and squeezed to move, the movement of the sliding plate drives the movement of the baffle, and the movement of the baffle releases the closure of the material guide pipe. A limiting groove is provided on the surface of the workbench, the limiting plate is slidably installed on the inner wall of the limiting groove, the baffle is slidably installed under the material guide pipe, the sliding plate is slidably installed under the filter plate, the receiving rod is fixedly installed on a side of the material guide pipe close to the sliding plate, the sliding plate is fixedly connected to the baffle, the limiting plate moves downward to squeeze the telescopic elastic rod to contract, and the telescopic elastic rod is reset after contraction to achieve limiting of the collection frame.

[0013] According to the above technical solution, a telescopic elastic rod is fixedly installed on the inner wall of the limit groove, the free end of the telescopic elastic rod is fixedly connected to the limit plate, the surface of the limit plate is set as an inclined plane, and a No. 2 spring is arranged between the receiving rod and the outer wall of the guide tube. The sliding plate moves to squeeze the No. 2 spring to contract, and the No. 2 spring can realize the closure of the guide tube when the collection frame is replaced.

[0014] The present invention provides a device for grinding the rotary surface of an aluminum alloy automobile wheel hub. It has the following beneficial effects: (1) The aluminum alloy automobile wheel hub rotary surface grinding device, through the coordinated operation between the transmission shaft, the storage plate, the rotating frame, the bracket, the roller, the L-shaped clamping rod, the connecting rod, the sleeve, the rubber block and the No. 1 spring, enables the L-shaped clamping rod and the rubber block to clamp the inner wall of the wheel hub body with different inner diameters, thereby preventing the wheel hub body from loosening or deflecting during the grinding process, thereby improving the applicability of the equipment. At the same time, the rotating frame is used to realize the rotation of the wheel hub body during the grinding process, thereby increasing the contact area between the grinding mechanism and the wheel hub body, so that the grinding mechanism can fully contact various parts of the wheel hub body, thereby evenly grinding.

[0015] (2) The aluminum alloy automobile wheel hub rotary surface grinding device collects debris and powder through the collection frame through the coordinated operation of the blower, filter plate, brush plate, arc rod, material guide pipe, collection frame and material guide trough, which can effectively remove the debris and powder on the surface of the wheel hub body, thereby improving the grinding efficiency. At the same time, vibration is generated under the action of the protrusion and the receiving block, which can prevent the debris and powder from being adsorbed on the top of the filter plate under the action of wind pressure, causing the filter plate to be blocked and thus affecting the collection effect of the debris and powder.

[0016] (3) The aluminum alloy automobile wheel hub rotary surface grinding device, through the coordinated operation between the limit plate, the baffle plate, the sliding plate, the receiving rod, the limit groove, the telescopic elastic rod and the No. 2 spring, can release the closure of the material guide pipe by moving the baffle plate, thereby preventing the debris and powder from being scattered outside due to the collection frame not being in place during the collection process, thereby increasing the subsequent maintenance cost. At the same time, the No. 2 spring can achieve the closure of the material guide pipe when the collection frame is replaced, thereby improving the debris and powder collection effect and effectively reducing the subsequent maintenance cost. BRIEF DESCRIPTION OF THE DRAWINGS

[0017] Figure 1 It is a schematic diagram of the overall structure of the present invention; Figure 2 It is a schematic diagram of the overall cross-sectional structure of the present invention; Figure 3 This is a schematic diagram of the position structure of the filter plate and the collection frame of the present invention; Figure 4 For the present invention Figure 3 The enlarged structural diagram of part A in the middle; Figure 5 It is a schematic diagram of the position structure of the rotating frame and the storage plate of the present invention; Figure 6 For the present invention Figure 5 The enlarged structural diagram of part B in the middle; Figure 7 It is a schematic diagram of the position structure of the collecting frame and the sliding plate of the present invention.

[0018] In the figure: 1. workbench; 101. hub body; 2. mechanical arm; 3. grinding mechanism; 4. storage slot; 5. servo motor; 6. transmission shaft; 7. storage plate; 8. rotating frame; 9. bracket; 10. roller; 11. L-shaped clamp rod; 12. connecting rod; 13. sleeve; 14. rubber block; 15. No. 1 spring; 161. blower; 162. filter plate; 163. brush plate; 164. arc rod; 165. guide pipe; 166. collection frame; 167. guide slot; 168. protrusion; 169. receiving block; 171. limit plate; 172. baffle; 173. sliding plate; 174. receiving rod; 175. limit slot; 176. telescopic elastic rod; 177. No. 2 spring. DETAILED DESCRIPTION

[0019] The following will be combined with the drawings in the embodiments of the present invention to clearly and completely describe the technical solutions in the embodiments of the present invention. Obviously, the described embodiments are only part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the present invention.

[0020] See also Figure 1-Figure 7An embodiment of the present invention is: a rotary surface grinding device for an aluminum alloy automobile wheel hub, comprising a workbench 1 and a wheel hub body 101, a mechanical arm 2 is arranged on the surface of the workbench 1, and a grinding mechanism 3 is arranged on the degree of freedom of the mechanical arm 2, a storage groove 4 is opened on the surface of the workbench 1, and a servo motor 5 is fixedly installed on the bottom of the inner wall of the storage groove 4, and also includes: a rotating clamping device, the rotating clamping device includes a transmission shaft 6, a storage plate 7, a rotating frame 8, a bracket 9, a roller 10, an L-shaped clamping rod 11, a connecting rod 12 and a sleeve 13, the sleeve 13 moves downward to drive one end of the connecting rod 12 to move downward, and one end of the connecting rod 12 moves downward to drive the L-shaped clamping rod 11 to move away from the transmission shaft 6 through the other end, the transmission shaft 6 is fixedly installed at the output end of the servo motor 5, the storage plate 7 is fixedly installed on the inner wall of the storage groove 4, and the rotating frame 8 is rotatably installed on the storage plate 7. The inner wall of the plate 7, the bracket 9 is fixedly installed below the rotating frame 8, the roller 10 is rotatably installed on the circumferential surface of the bracket 9, the L-shaped clamp rod 11 is slidably installed above the rotating frame 8, the connecting rod 12 is rotatably installed above the L-shaped clamp rod 11, and the sleeve 13 is rotatably installed at the end of the connecting rod 12 away from the L-shaped clamp rod 11. A spiral groove is provided on the surface of the transmission shaft 6, and the sleeve 13 is connected to the transmission shaft 6 by a thread. The L-shaped clamp rod 11 moves to contact the inner wall of the hub body 101 and clamps and fixes it, thereby effectively clamping the hub body 101 with different inner diameters, avoiding loosening or deviation of the hub body 101 during the grinding process, improving the applicability of the equipment, and increasing the contact area between the grinding mechanism 3 and the hub body 101 by rotation, so that the grinding mechanism 3 can fully contact all parts of the hub body 101, thereby evenly grinding.

[0021] Four L-shaped clamping rods 11 are provided, and the four L-shaped clamping rods 11 are evenly distributed around the transmission shaft 6 to improve the clamping effect on the hub body 101. Four brackets 9 are provided, and the four brackets 9 are evenly distributed around the transmission shaft 6 to maintain the stability of the rotating frame 8 during rotation. The rotation of the roller 10 can convert sliding friction into rolling friction, reduce the stress between the sleeve 13 and the transmission shaft 6, extend the service life of the equipment, and reduce subsequent maintenance costs.

[0022] A rubber block 14 is fixedly installed at one end of the L-shaped clamp rod 11 away from the transmission shaft 6. The rubber block 14 can prevent the L-shaped clamp rod 11 from directly colliding with the hub body 101 and thus reduce wear. A No. 1 spring 15 is arranged between the L-shaped clamp rod 11 and the rotating frame 8. The No. 1 spring 15 can drive the L-shaped clamp rod 11 to reset.

[0023] When this embodiment is working: the wheel hub body 101 is placed above the rotating frame 8, and then the servo motor 5 is started. The output end of the servo motor 5 rotates to drive the transmission shaft 6 to rotate. The transmission shaft 6 rotates and drives the sleeve 13 downward through the spiral groove. The sleeve 13 moves downward and drives one end of the connecting rod 12 to move downward. One end of the connecting rod 12 moves downward and drives the L-shaped clamping rod 11 to move away from the transmission shaft 6 through the other end. The L-shaped clamping rod 11 moves and drives the rubber block 14 to move toward the inner wall of the wheel hub body 101. The rubber block 14 moves to contact the inner wall of the wheel hub body 101 and clamps it. Then the transmission shaft 6 continues to rotate and drives the sleeve 13 to rotate. The sleeve 13 rotates and drives the connecting rod 12 to rotate. The connecting rod 12 rotates and drives the L-shaped clamping rod 11 to rotate. The L-shaped clamping rod 11 rotates and drives the wheel hub body 101 to rotate through the rubber block 14, and then the machine is started again. The mechanical arm 2 is started to drive the grinding mechanism 3 to grind the surface of the hub body 101, thereby effectively clamping the hub body 101 with different inner diameters, avoiding loosening or offset of the hub body 101 during the grinding process, improving the applicability of the equipment, and increasing the contact area between the grinding mechanism 3 and the hub body 101 by rotation, so that the grinding mechanism 3 can be in full contact with all parts of the hub body 101, thereby uniformly grinding, avoiding local over-processing or incomplete removal, and improving the grinding efficiency of the hub body 101. At the same time, when the hub body 101 rotates, it drives the rotating frame 8 to rotate, and the rotation of the rotating frame 8 drives the bracket 9 to rotate, and the rotation of the bracket 9 drives the roller 10 to rotate. The rotation of the roller 10 can convert the sliding friction into rolling friction, thereby reducing the stress between the sleeve 13 and the transmission shaft 6, extending the service life of the equipment, and reducing the subsequent maintenance cost.

[0024] See also Figure 1-Figure 7On the basis of the above embodiment, in another embodiment of the present invention, a chip collecting device for collecting the debris generated during the grinding process is arranged inside the storage tank 4, and the chip collecting device includes a blower 161 and a filter plate 162, the blower 161 is fixedly passed through the bottom of the workbench 1, and the filter plate 162 is fixedly installed on the inner wall of the storage tank 4, and the chip collecting device also includes a brush plate 163, an arc rod 164, a guide pipe 165 and a collection frame 166, and the rotation of the rotating frame 8 drives the arc rod 164 to rotate, and the arc rod 164 rotates to sweep the debris collected above the filter plate 162 into the interior of the collection frame 166, The brush plate 163 is fixedly installed at the bottom of the rotating frame 8, the arc rod 164 is fixedly installed on the circumferential surface of the rotating frame 8, the guide tube 165 is fixedly passed through the upper and lower walls of the filter plate 162, a slide groove is opened on the surface of the workbench 1, and the collection frame 166 is slidably installed inside the slide groove. The rotation of the rotating frame 8 drives the brush plate 163 to rotate. The rotation of the brush plate 163 can sweep the debris on the surface of the storage plate 7 to the top of the filter plate 162 through the guide groove 167, which can effectively remove the debris and powder on the surface of the hub body 101 and avoid the powder remaining on the surface of the hub body 101, thereby improving the grinding efficiency.

[0025] A material guide groove 167 is provided on the surface of the storage plate 7, the brush plate 163 contacts the top of the storage plate 7, the arc rod 164 contacts the top of the filter plate 162, the bottom of the rotating frame 8 contacts the filter plate 162, and the transmission shaft 6 rotates through the upper and lower walls of the filter plate 162.

[0026] A protrusion 168 is fixedly installed on the circumferential surface of the rotating frame 8, and a receiving block 169 is fixedly installed above the filter plate 162. The side of the protrusion 168 away from the rotating frame 8 is set as arc surface one, and the top of the receiving block 169 is set as arc surface two. The protrusion 168 rotates to contact the receiving block 169 and generate vibration. The vibration can prevent debris and powder from being adsorbed on the top of the filter plate 162 under the action of wind pressure, causing the filter plate 162 to be blocked and thus affecting the collection effect of debris and powder.

[0027] The workbench 1 also includes a limiting device, which includes a limiting plate 171, a baffle 172, a sliding plate 173 and a receiving rod 174. The collecting frame 166 contacts and squeezes the sliding plate 173 during its movement. The sliding plate 173 moves to drive the baffle 172 to move. The baffle 172 moves to release the closure of the guide tube 165. A limiting groove 175 is provided on the surface of the workbench 1. The limiting plate 171 is slidably installed on the inner wall of the limiting groove 175. The baffle 172 is slidably installed under the guide tube 165. The sliding plate 173 is slidably installed under the filter plate 162, and the receiving rod 174 is fixedly installed on the side of the guide tube 165 close to the sliding plate 173. The sliding plate 173 is fixedly connected to the baffle 172. The limiting plate 171 moves downward to squeeze the telescopic elastic rod 176 to contract. The telescopic elastic rod 176 is reset after contraction to limit the collecting frame 166, thereby avoiding the scattering of debris and powder outside due to the collection frame 166 not being in place during the collection process, thereby increasing the subsequent maintenance cost.

[0028] A telescopic spring rod 176 is fixedly installed on the inner wall of the limiting groove 175, and the free end of the telescopic spring rod 176 is fixedly connected to the limiting plate 171. The surface of the limiting plate 171 is set as an inclined surface. A No. 2 spring 177 is arranged between the receiving rod 174 and the outer wall of the guide tube 165. The sliding plate 173 moves to squeeze the No. 2 spring 177 to contract. The No. 2 spring 177 can achieve the closure of the guide tube 165 when the collection frame 166 is replaced, thereby improving the collection effect of debris and powder and effectively reducing the subsequent maintenance cost.

[0029] When the present embodiment is working, the collecting frame 166 is installed on the inner wall of the slide slot, the collecting frame 166 moves and contacts the guide tube 165, during which the rotating frame 8 rotates and drives the brush plate 163 to rotate, the rotation of the brush plate 163 can sweep the debris on the surface of the storage plate 7 through the guide slot 167 to the top of the filter plate 162, and then the blower 161 is started. After the blower 161 is started, the debris generated during the grinding process can be adsorbed to the top of the filter plate 162, which can effectively remove the debris and powder on the surface of the hub body 101, and avoid the powder remaining on the surface of the hub body 101, thereby improving the grinding efficiency. The arc rod 164 is driven to rotate, and the arc rod 164 rotates to sweep the debris collected above the filter plate 162 into the interior of the collection frame 166, so as to prevent the debris and powder from escaping into the surrounding environment and affecting the health of the staff. At the same time, it is convenient for the centralized treatment of the debris and powder, and saves resources and reduces production costs through subsequent reprocessing. The rotation of the rotating frame 8 drives the protrusion 168 to rotate, and the protrusion 168 rotates to contact the receiving block 169 and generate vibration. The vibration can prevent the debris and powder from being adsorbed on the top of the filter plate 162 under the action of wind pressure, causing the filter plate 162 to be blocked and thus affecting the collection effect of the debris and powder.

[0030] During the movement of the collecting frame 166, the sliding plate 173 is contacted and pressed to move. The movement of the sliding plate 173 drives the baffle 172 to move. The movement of the baffle 172 releases the closure of the guide tube 165, so that the debris and powder enter the collecting frame 166 through the guide tube 165. During this process, the collecting frame 166 moves, contacts and presses the limit plate 171 to move downward. The limit plate 171 moves downward to press the telescopic elastic rod 176 to contract. After the telescopic elastic rod 176 contracts, it resets to limit the collecting frame 166, avoiding the debris and powder from being collected. During the collection process, the collection frame 166 is prevented from being scattered outside due to being out of place, thereby increasing the subsequent maintenance cost. At the same time, the limit plate 171 can maintain the stability of the collection frame 166 during the collection process, and prevent the position of the collection frame 166 from being offset or shaking during the operation of the equipment. The sliding plate 173 moves to squeeze the No. 2 spring 177 to contract. The No. 2 spring 177 can achieve the closure of the guide tube 165 when the collection frame 166 is replaced, thereby improving the collection effect of debris and powder, and effectively reducing the subsequent maintenance cost.

[0031] Although embodiments of the present invention have been shown and described, it will be appreciated by those skilled in the art that various changes, modifications, substitutions and variations may be made to the embodiments without departing from the principles and spirit of the present invention, and that the scope of the present invention is defined by the appended claims and their equivalents.

Claims

1. A device for grinding the rotary surface of an aluminum alloy automobile wheel hub, comprising a workbench (1) and a wheel hub body (101), wherein a mechanical arm (2) is disposed on the surface of the workbench (1), and a grinding mechanism (3) is disposed on the degree of freedom of the mechanical arm (2), and a storage groove (4) is provided on the surface of the workbench (1), and a servo motor (5) is fixedly mounted on the bottom of the inner wall of the storage groove (4), characterized in that: Also includes: A rotating clamping device, the rotating clamping device comprising a transmission shaft (6), a storage plate (7), a rotating frame (8), a bracket (9), a roller (10), an L-shaped clamping rod (11), a connecting rod (12) and a sleeve (13), wherein the transmission shaft (6) is fixedly mounted on the output end of the servo motor (5), the storage plate (7) is fixedly mounted on the inner wall of the storage groove (4), the rotating frame (8) is rotatably mounted on the inner wall of the storage plate (7), the bracket (9) is fixedly mounted below the rotating frame (8), the roller (10) is rotatably mounted on the circumferential surface of the bracket (9), the L-shaped clamping rod (11) is slidably mounted above the rotating frame (8), the connecting rod (12) is rotatably mounted above the L-shaped clamping rod (11), the sleeve (13) is rotatably mounted on one end of the connecting rod (12) away from the L-shaped clamping rod (11), a spiral groove is provided on the surface of the transmission shaft (6), and the sleeve (13) is connected to the transmission shaft (6) by a thread; A chip collecting device for collecting chips generated during the grinding process is provided inside the storage groove (4), and the chip collecting device comprises a blower (161) and a filter plate (162), the blower (161) is fixedly inserted through the bottom of the workbench (1), and the filter plate (162) is fixedly mounted on the inner wall of the storage groove (4).

2. The aluminum alloy automobile wheel hub rotary surface grinding device according to claim 1, characterized in that: Four L-shaped clamping rods (11) are provided, and the four L-shaped clamping rods (11) are evenly distributed with the transmission shaft (6) as the center; four brackets (9) are provided, and the four brackets (9) are evenly distributed with the transmission shaft (6) as the center.

3. The aluminum alloy automobile wheel hub rotary surface grinding device according to claim 2 is characterized in that: A rubber block (14) is fixedly mounted on one end of the L-shaped clamping rod (11) away from the transmission shaft (6), and a first spring (15) is arranged between the L-shaped clamping rod (11) and the rotating frame (8).

4. The aluminum alloy automobile wheel hub rotary surface grinding device according to claim 3 is characterized in that: The chip collecting device further comprises a brush plate (163), an arc rod (164), a material guide pipe (165) and a collection frame (166); the brush plate (163) is fixedly mounted below the rotating frame (8); the arc rod (164) is fixedly mounted on the circumferential surface of the rotating frame (8); the material guide pipe (165) is fixedly penetrated through the upper and lower walls of the filter plate (162); a slide groove is provided on the surface of the workbench (1); and the collection frame (166) is slidably mounted inside the slide groove.

5. The aluminum alloy automobile wheel hub rotary surface grinding device according to claim 4, characterized in that: A material guide groove (167) is provided on the surface of the placement plate (7), the brush plate (163) contacts the top of the placement plate (7), the arc-shaped rod (164) contacts the top of the filter plate (162), the bottom of the rotating frame (8) contacts the filter plate (162), and the transmission shaft (6) rotates to penetrate the upper and lower walls of the filter plate (162).

6. The aluminum alloy automobile wheel hub rotary surface grinding device according to claim 5, characterized in that: A protrusion (168) is fixedly mounted on the circumferential surface of the rotating frame (8), a receiving block (169) is fixedly mounted above the filter plate (162), a side of the protrusion (168) away from the rotating frame (8) is arranged as arc surface one, and an upper portion of the receiving block (169) is arranged as arc surface two.

7. The aluminum alloy automobile wheel hub rotary surface grinding device according to claim 6, characterized in that: The workbench (1) further comprises a limiting device, the limiting device comprising a limiting plate (171), a baffle (172), a sliding plate (173) and a receiving rod (174); a limiting groove (175) is provided on the surface of the workbench (1); the limiting plate (171) is slidably mounted on the inner wall of the limiting groove (175); the baffle (172) is slidably mounted below the material guide tube (165); the sliding plate (173) is slidably mounted below the filter plate (162); the receiving rod (174) is fixedly mounted on a side of the material guide tube (165) close to the sliding plate (173); and the sliding plate (173) is fixedly connected to the baffle (172).

8. The aluminum alloy automobile wheel hub rotary surface grinding device according to claim 7, characterized in that: A telescopic spring rod (176) is fixedly mounted on the inner wall of the limiting groove (175); the free end of the telescopic spring rod (176) is fixedly connected to the limiting plate (171); the surface of the limiting plate (171) is arranged as an inclined surface; and a second spring (177) is arranged between the receiving rod (174) and the outer wall of the material guide tube (165).

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