Electric vehicle hub hole site detecting and positioning device

Abstract

The invention relates to an electric vehicle hub hole site detecting and positioning device which comprises a power assembly and an electric vehicle hub body, the periphery of the power assembly is connected with a traction assembly, and the electric vehicle hub body is located on the side, close to the central axis of the power assembly, of a side clamping assembly. The electric vehicle hub hole site detecting and positioning device has the beneficial effects that the electric vehicle hub hole site detecting and positioning device is provided with the center clamping structure, equipment can be conveniently positioned through the center clamping structure, meanwhile, whether the shape of a hub is standard or not can be easily detected by means of the center positioning effect when the hub is rotated by the equipment, and the detection accuracy is improved. And meanwhile, the central positioning structure also has an auxiliary supporting effect, so that the contact plate can drive the hub to rotate more conveniently, the equipment also has a polishing effect in the hub rotating process, burrs or slight protrusions on the edge of the hub are removed, and the hub polishing efficiency is improved. Therefore, burrs or slight bulges are prevented from influencing the shape detection of the equipment.

Description

Technical Field

[0001] The invention relates to the technical field of electric vehicle wheel hub hole position detection, and in particular to an electric vehicle wheel hub hole position detection and positioning device. Background Art

[0002] The electric vehicle wheel hub hole detection is to check and measure the position, size, shape, spacing and other parameters of the holes on the electric vehicle wheel hub used to install tires, spokes, brake devices and other components. Its purpose is to ensure that these holes meet the design requirements and relevant standards to ensure that the wheel hub can be correctly installed and used normally, and to ensure the driving safety and stable performance of the electric vehicle. If there are problems such as deviations in the hole position, inconsistent dimensions or irregular shapes, it may cause installation difficulties, loose components, uneven force and even cause safety accidents. During the use of the electric vehicle wheel hub hole detection, a positioning device is needed to position the electric vehicle wheel hub, so that the detection device can detect the hole position of the wheel hub.

[0003] Most of the existing electric vehicle wheel hub hole detection and positioning devices use an ordinary clamping structure during operation, that is, one side is fixed and the other side is movable for clamping. This clamping method can only locate standard-sized wheels. If other-sized wheels are used, a good positioning effect cannot be achieved, resulting in the detection device being unable to perform detection very accurately.

[0004] Therefore, it is necessary to design an electric vehicle wheel hub hole position detection and positioning device to address the above problems. Summary of the invention

[0005] The purpose of the present invention is to provide an electric vehicle wheel hub hole position detection and positioning device to solve the problems raised in the above background technology.

[0006] To achieve the above-mentioned purpose, the present invention provides the following technical solutions: a device for detecting and positioning the hole position of an electric vehicle hub, comprising a power assembly and an electric vehicle hub body, wherein the power assembly is connected with a traction assembly around it, and the upper end of the traction assembly is connected with a side clamping assembly, the electric vehicle hub body is located on the side of the side clamping assembly close to the central axis of the power assembly, and the traction assembly comprises a tension sensor, a pull plate, a second spring, a guide rod and a traction frame, the tension sensor is connected with a pull plate on the side away from the power assembly, and the second spring is connected to the middle part of the side of the pull plate away from the tension sensor, guide rods are passed through the upper and lower sides of the pull plate, and the end of the guide rod away from the pull plate is connected to the traction frame.

[0007] Furthermore, a vibration assembly is installed at the upper end of the power assembly, and compressed air assemblies are installed around the vibration assembly, and a cleaning assembly is connected to the upper end of the side clamping assembly.

[0008] Furthermore, the power assembly includes a support box, a first motor and a first gear, and the first motor is installed at the lower end of the support box, and the rotating end of the first motor is connected to the first gear.

[0009] Furthermore, the power assembly also includes a second gear, a threaded rod, a movable frame and a sliding rod, and the second gear is meshed and connected to the first gear on all sides, the middle of the second gear is connected to the threaded rod, and the outside of the threaded rod is connected to the movable frame, and the sliding rod passes through the lower end of the movable frame.

[0010] Furthermore, the vibration assembly includes a second motor, a fixed plate and a rotating telescopic rod, and the upper part of the second motor is connected to the fixed plate, and the rotating end of the second motor is connected to the rotating telescopic rod.

[0011] Furthermore, the vibration assembly also includes a first spring and a contact plate, and the first spring is arranged outside the rotating telescopic rod, and the upper end of the rotating telescopic rod is connected to the contact plate.

[0012] Furthermore, the compressed air assembly includes an air box, an air pipe, a piston plate, an upgrade rod and a steel ball, and the lower end of the air box away from the vibration assembly is connected to the air pipe, a piston plate is installed inside the air box, and the upper end of the piston plate is connected to the upgrade rod, and the upper end of the upgrade rod is inlaid with a steel ball.

[0013] Furthermore, the side clamping assembly includes an airbag, an upper sleeve, a lower sleeve and a sealing pad, wherein the upper end of the airbag is connected to the upper sleeve, the lower end of the airbag is connected to the lower sleeve, and the sealing pad is installed at the inner lower end of the lower sleeve.

[0014] Furthermore, the side clamping assembly also includes a bearing and a hard tube, and the bearing is installed inside the upper sleeve, and the hard tube is connected inside the bearing.

[0015] Furthermore, the cleaning assembly includes a bracket, an arc frame, a polishing and cleaning column and an elastic drawstring, and the upper end of the bracket is connected to the arc frame, the end of the arc frame away from the bracket is connected to the polishing and cleaning column, and the upper end of the arc frame is connected to the elastic drawstring.

[0016] Compared with the prior art, the beneficial effects of the present invention are: the equipment has a center clamping structure, which can facilitate the positioning of the equipment through the center clamping structure, and relying on the center positioning effect, when the equipment rotates the wheel hub, it can easily detect whether the shape of the wheel hub is standard, so that the staff can find out and deal with it in time, and eliminate the possibility of positioning affected by the shape of the wheel hub. At the same time, the center positioning structure also has an auxiliary supporting effect, which makes it easier for the contact plate to drive the wheel hub to rotate. The equipment also has a grinding effect during the rotation of the wheel hub, and removes the burrs or slight protrusions on the edge of the wheel hub, thereby preventing the burrs or slight protrusions from affecting the shape detection of the equipment.

[0017] 1. The present invention uses a power component to pull the traction frame, so that the four side clamping components are moved closer to the middle, so that the side clamping components can position and clamp the electric vehicle hub body. At the same time, the traction frame forms a continuous clamping on the side clamping components through the elastic structure formed by the guide rod and the second spring and the pull plate, so that the side clamping components can stably clamp the electric vehicle hub body. The tension sensor can detect the tension of the traction frame, so that the power component can control the clamping force of the side clamping components.

[0018] 2. The second motor of the present invention can drive the contact plate to rotate by rotating the telescopic rod, so that the contact plate mobilizes the electric vehicle hub body to rotate, and relies on the elastic structure formed by the contact plate through the first spring and the rotating telescopic rod and the fixed plate to facilitate the contact between the contact plate and the electric vehicle hub body for transmission. During the rotation of the electric vehicle hub body, if the side of the electric vehicle hub body is uneven or the shape of the electric vehicle hub body has problems, it will affect the position of the side clamping assembly, thereby changing the value of the tension sensor, which is convenient for staff to discover and solve problems in time, avoiding inaccurate centering due to problems with the electric vehicle hub body itself, affecting subsequent hole position detection.

[0019] 3. The present invention places the electric vehicle hub body on the contact plate, so that the upgrade rod presses down the piston plate, and the gas inside the air box is transported to the airbag through the air pipe, so that the airbag expands and contacts the side of the electric vehicle hub body, thereby increasing the friction between the side clamping assembly and the electric vehicle hub body, making it easier to drive the upper sleeve to rotate during the rotation of the electric vehicle hub body. At the same time, the expanded airbag can be embedded in the interior of the electric vehicle hub body, which can form a good supporting force for the electric vehicle hub body, ensure the stability of the position of the electric vehicle hub body, and prevent the electric vehicle hub body from moving up and down during rotation, thereby preventing the electric vehicle hub body from moving up and down and affecting the operation of the equipment.

[0020] 4. The present invention supports the grinding and cleaning column through the arc frame, so that the grinding and cleaning column is flush with the electric vehicle hub body, thereby facilitating the grinding and cleaning column to clean the surface of the electric vehicle hub body, avoiding the influence of the barbs or corners on the surface of the electric vehicle hub body on the opposite side clamping components, causing misjudgment of the tension sensor, and at the same time relying on the elastic rotating mechanism directly formed by the arc frame through the elastic pull belt and the bracket, which facilitates the stable contact between the grinding and cleaning column and the electric vehicle hub body, and facilitates the cleaning work of the grinding and cleaning column. BRIEF DESCRIPTION OF THE DRAWINGS

[0021] Figure 1 It is a front view structural schematic diagram of a device for detecting and positioning the hole position of a wheel hub of an electric vehicle according to the present invention;

[0022] Figure 2It is a schematic diagram of the cross-sectional structure of a power component of a device for detecting and positioning the hole position of a wheel hub of an electric vehicle according to the present invention;

[0023] Figure 3 It is a schematic diagram of the cross-sectional structure of a compressed air component of a device for detecting and positioning the hole position of a wheel hub of an electric vehicle according to the present invention;

[0024] Figure 4 It is a schematic diagram of the enlarged structure of a traction component of a device for detecting and positioning the hole position of a wheel hub of an electric vehicle according to the present invention;

[0025] Figure 5 It is a schematic diagram of an enlarged cross-section structure of a side clamping assembly of a device for detecting and positioning the hole position of an electric vehicle hub of the present invention;

[0026] Figure 6 It is a schematic diagram of the top view of the structure of a device for detecting and positioning the hole position of a wheel hub of an electric vehicle according to the present invention;

[0027] Figure 7 It is a schematic diagram of the three-dimensional structure of a side clamping assembly of a device for detecting and positioning the hole position of an electric vehicle hub of the present invention;

[0028] Figure 8 The present invention is a schematic diagram of the three-dimensional structure of a cleaning component of an electric vehicle wheel hub hole detection and positioning device.

[0029] In the figure: 1. Power assembly; 101. Support box; 102. First motor; 103. First gear; 104. Second gear; 105. Threaded rod; 106. Moving frame; 107. Sliding rod; 2. Vibration assembly; 201. Second motor; 202. Fixed plate; 203. Rotating telescopic rod; 204. First spring; 205. Contact plate; 3. Compressed air assembly; 301. Air box; 302. Air pipe; 303. Piston plate; 304. Upgrade rod; 305, steel ball; 4, traction assembly; 401, tension sensor; 402, pull plate; 403, second spring; 404, guide rod; 405, traction frame; 5, side clamping assembly; 501, airbag; 502, upper sleeve; 503, lower sleeve; 504, sealing gasket; 505, bearing; 506, hard pipe; 6, electric vehicle wheel hub body; 7, cleaning assembly; 701, bracket; 702, arc frame; 703, polishing cleaning column; 704, elastic drawstring. DETAILED DESCRIPTION

[0030] like Figure 1 and Figure 4As shown, the present invention provides a technical solution: a device for detecting and positioning the hole position of an electric vehicle hub, comprising a power assembly 1 and an electric vehicle hub body 6, wherein the power assembly 1 is connected with a traction assembly 4 around it, and the upper end of the traction assembly 4 is connected with a side clamping assembly 5, the electric vehicle hub body 6 is located on the side of the side clamping assembly 5 close to the central axis of the power assembly 1, and the traction assembly 4 comprises a tension sensor 401, a pull plate 402, a second spring 403, a guide rod 404 and a traction frame 405, the side of the tension sensor 401 away from the power assembly 1 is connected with the pull plate 402, and the middle part of the side of the pull plate 402 away from the tension sensor 401 is connected with the second spring 403, the upper and lower sides of the pull plate 402 are penetrated by the guide rod 404, and the end of the guide rod 404 away from the pull plate 402 is connected to the traction frame 405;

[0031] The specific operation is as follows: the traction frame 405 is pulled by the power component 1, so that the four side clamping components 5 are moved closer to the middle, so that the side clamping components 5 can position and clamp the electric vehicle hub body 6. At the same time, the traction frame 405 forms a continuous clamping for the side clamping components 5 through the elastic structure formed by the guide rod 404 and the second spring 403 and the pull plate 402, so that the side clamping components 5 can stably clamp the electric vehicle hub body 6. The tension sensor 401 can detect the tension of the traction frame 405, so as to facilitate the power component 1 to control the clamping force of the side clamping components 5.

[0032] like Figure 1 , Figure 3 and Figure 6 As shown, a vibration assembly 2 is installed on the upper end of the power assembly 1, and a compressed air assembly 3 is installed around the vibration assembly 2, and a cleaning assembly 7 is connected to the upper end of the side clamping assembly 5.

[0033] like Figure 2 As shown, the power assembly 1 includes a support box 101, a first motor 102 and a first gear 103, and the first motor 102 is installed at the lower end of the support box 101, and the rotating end of the first motor 102 is connected to the first gear 103. The power assembly 1 also includes a second gear 104, a threaded rod 105, a movable frame 106 and a sliding rod 107, and the first gear 103 is meshedly connected with the second gear 104 around, the middle of the second gear 104 is connected to the threaded rod 105, and the outer part of the threaded rod 105 is connected to the movable frame 106, and the lower end of the movable frame 106 is penetrated by the sliding rod 107;

[0034] The first motor 102 drives the first gear 103 to rotate, thereby driving the threaded rod 105 to rotate through the second gear 104, and relying on the threaded connection between the threaded rod 105 and the movable frame 106, the movable frame 106 moves toward the direction of the central axis of the support box 101, so that the movable frame 106 drives the side clamping assembly 5 to clamp the electric vehicle hub body 6.

[0035] like Figure 1 The vibration assembly 2 includes a second motor 201, a fixed plate 202 and a rotating telescopic rod 203, and the second motor 201 is connected to the fixed plate 202 above, and the rotating end of the second motor 201 is connected to the rotating telescopic rod 203. The vibration assembly 2 also includes a first spring 204 and a contact plate 205, and the first spring 204 is arranged outside the rotating telescopic rod 203, and the upper end of the rotating telescopic rod 203 is connected to the contact plate 205;

[0036] The second motor 201 can drive the contact plate 205 to rotate by rotating the telescopic rod 203, so that the contact plate 205 mobilizes the electric vehicle hub body 6 to rotate, and the elastic structure formed by the contact plate 205 through the first spring 204 and the rotating telescopic rod 203 and the fixed plate 202 facilitates the contact between the contact plate 205 and the electric vehicle hub body 6 for transmission. During the rotation of the electric vehicle hub body 6, if the side of the electric vehicle hub body 6 is uneven or the shape of the electric vehicle hub body 6 has problems, it will affect the position of the side clamping assembly 5, thereby changing the value of the tension sensor 401, which is convenient for the staff to find problems in time and solve them, avoiding inaccurate centering due to problems with the electric vehicle hub body 6 itself, affecting subsequent hole position detection.

[0037] like Figure 3 The compressed air component 3 includes an air box 301, an air pipe 302, a piston plate 303, an upgrade rod 304 and a steel ball 305, and the air box 301 is connected to the air pipe 302 at the lower end of the side away from the vibration component 2, the piston plate 303 is installed inside the air box 301, and the upper end of the piston plate 303 is connected to the upgrade rod 304, and the upper end of the upgrade rod 304 is inlaid with a steel ball 305;

[0038] The electric vehicle hub body 6 is placed on the contact plate 205, so that the upgrade rod 304 presses down the piston plate 303, and the gas inside the air box 301 is transported to the air bag 501 through the air pipe 302, so that the air bag 501 expands and contacts the side of the electric vehicle hub body 6, thereby increasing the friction between the side clamping assembly 5 and the electric vehicle hub body 6, making it easier to drive the upper sleeve 502 to rotate during the rotation of the electric vehicle hub body 6. At the same time, the expanded air bag 501 can be embedded in the inside of the electric vehicle hub body 6, and can form a good supporting force for the electric vehicle hub body 6, thereby ensuring the stability of the position of the electric vehicle hub body 6, so that the electric vehicle hub body 6 will not move up and down during the rotation, thereby preventing the electric vehicle hub body 6 from moving up and down and affecting the operation of the equipment.

[0039] like Figure 5 and Figure 7As shown, the side clamping assembly 5 includes an airbag 501, an upper sleeve 502, a lower sleeve 503 and a sealing gasket 504, and the upper end of the airbag 501 is connected to the upper sleeve 502, the lower end of the airbag 501 is connected to the lower sleeve 503, and the sealing gasket 504 is installed at the lower end of the lower sleeve 503, and the side clamping assembly 5 also includes a bearing 505 and a hard tube 506, and the bearing 505 is installed inside the upper sleeve 502, and the hard tube 506 is connected inside the bearing 505;

[0040] The upper sleeve 502 and the lower sleeve 503 both form a rotating structure through the bearing 505 and the hard tube 506, which facilitates the rotation of the upper sleeve 502 and the lower sleeve 503 and avoids the upper sleeve 502 and the lower sleeve 503 from affecting the rotation of the electric vehicle hub body 6.

[0041] like Figure 6 and Figure 8 As shown, the cleaning assembly 7 includes a bracket 701, an arc frame 702, a polishing and cleaning column 703 and an elastic drawstring 704, and the upper end of the bracket 701 is connected to the arc frame 702, the end of the arc frame 702 away from the bracket 701 is connected to the polishing and cleaning column 703, and the upper end of the arc frame 702 is connected to the elastic drawstring 704;

[0042] The polishing and cleaning column 703 is supported by the arc frame 702, so that the polishing and cleaning column 703 is flush with the electric vehicle hub body 6, so that the polishing and cleaning column 703 can clean the surface of the electric vehicle hub body 6, avoiding the influence of the barbs or corners on the surface of the electric vehicle hub body 6 on the clamping component 5 on the opposite side, causing the tension sensor 401 to misjudge. At the same time, the elastic rotating mechanism directly formed by the arc frame 702 and the bracket 701 through the elastic pull belt 704 is convenient for the stable contact between the polishing and cleaning column 703 and the electric vehicle hub body 6, so as to facilitate the cleaning work of the polishing and cleaning column 703.

[0043] Working principle: first install the device on the hole detection device, and then place the electric vehicle hub body 6 on the contact plate 205. When the electric vehicle hub body 6 presses down on the contact plate 205, it will drive the upgrade rod 304 to move downward, so that the upgrade rod 304 pushes the piston plate 303 downward, and pushes the gas inside the air box 301 to the hard tube 506 through the air pipe 302, so that the gas is released from the hard tube 506 into the air bag 501, so that the air bag 501 swells, and at the same time the first motor 102 drives the first gear 103 to rotate, thereby driving the threaded rod 105 to rotate through the second gear 104, and relying on the threaded connection between the threaded rod 105 and the moving frame 106, the moving frame 106 moves toward the direction of the central axis of the support box 101, so that The moving frame 106 drives the side clamping assembly 5 to clamp the electric vehicle hub body 6, and forms a guiding effect on the moving frame 106 through the sliding rod 107, which is convenient for the moving frame 106 to move horizontally, so as to make it easier for the side clamping assembly 5 to clamp the electric vehicle hub body 6. During the clamping process, the traction frame 405 can form a continuous traction effect on the side clamping assembly 5 through the elastic structure formed by the guide rod 404, the second spring 403 and the pull plate 402, so as to maintain the stability of the equipment clamping. When the tension sensor 401 detects that the traction force formed by the side clamping assembly 5 reaches a certain value, the first motor 102 is stopped at this time, so that the equipment completes the clamping, and then the tracking or personnel turns on the second motor 201, and drives the contact plate 20 by rotating the telescopic rod 203. 5 rotates, thereby mobilizing the electric vehicle hub body 6 to rotate, so that the side clamping assembly 5 detects the shape of the electric vehicle hub body 6. If the side of the electric vehicle hub body 6 is uneven, or the shape of the electric vehicle hub body 6 has problems, it will affect the position of the side clamping assembly 5, thereby changing the value of the tension sensor 401, so that the staff can find the problem in time and solve it, avoiding the situation of inaccurate centering due to the problem of the electric vehicle hub body 6 itself. The upper sleeve 502 and the lower sleeve 503 both form a rotating structure through the bearing 505 and the hard tube 506, which is convenient for the upper sleeve 502 and the lower sleeve 503 to rotate, avoiding the upper sleeve 502 and the lower sleeve 503 from affecting the rotation of the electric vehicle hub body 6, and at the same time relying on the contact plate 205 through the first elastic The elastic structure formed between the spring 204 and the rotating telescopic rod 203 and the fixed plate 202 facilitates the contact between the contact plate 205 and the electric vehicle hub body 6, thereby facilitating the rotation of the electric vehicle hub body 6. During the clamping process of the electric vehicle hub body 6 by the side clamping assembly 5, the elastic rotating structure formed between the arc frame 702 and the bracket 701 through the elastic pull belt 704 enables the polishing and cleaning column 703 to make good contact with the electric vehicle hub body 6, so that the polishing and cleaning column 703 cleans the surface of the electric vehicle hub body 6 and removes burrs or small protrusions on the surface of the electric vehicle hub body 6, thereby avoiding the burrs or small protrusions from affecting the centering detection of the electric vehicle hub body 6 and avoiding the operation of the equipment. When all the above work is done,This ensures that the equipment can accurately center the electric vehicle hub body 6, making it easier for the hole position detection device to work. When the hole position detection is completed, the first motor 102 is turned on to reverse, so that the side clamping assembly 5 releases the electric vehicle hub body 6, making it easier for the staff to take out the electric vehicle hub body 6.

Claims

1. An electric vehicle wheel hub hole detection and positioning device, characterized in that: The electric vehicle comprises a power assembly (1) and an electric vehicle hub body (6); the power assembly (1) is connected to a traction assembly (4) around its periphery, and the upper end of the traction assembly (4) is connected to a side clamping assembly (5); the electric vehicle hub body (6) is located on a side of the side clamping assembly (5) close to the central axis of the power assembly (1); the traction assembly (4) comprises a tension sensor (401), a pull plate (402), a second spring (403), a guide rod (404) and a traction frame (405); the side of the tension sensor (401) away from the power assembly (1) is connected to the pull plate (402), and the middle part of the side of the pull plate (402) away from the tension sensor (401) is connected to the second spring (403); the upper and lower sides of the pull plate (402) are penetrated by guide rods (404), and the end of the guide rod (404) away from the pull plate (402) is connected to the traction frame (405).

2. The electric vehicle wheel hub hole detection and positioning device according to claim 1, characterized in that: A vibration component (2) is installed at the upper end of the power component (1), and a compressed air component (3) is installed around the vibration component (2). The upper end of the side clamping component (5) is connected to a cleaning component (7).

3. The electric vehicle wheel hub hole detection and positioning device according to claim 1, characterized in that: The power assembly (1) comprises a support box (101), a first motor (102) and a first gear (103), wherein the first motor (102) is installed at the lower end of the support box (101), and the rotating end of the first motor (102) is connected to the first gear (103).

4. The electric vehicle wheel hub hole detection and positioning device according to claim 3, characterized in that: The power assembly (1) further comprises a second gear (104), a threaded rod (105), a movable frame (106) and a sliding rod (107), wherein the first gear (103) is meshedly connected with the second gear (104) on all sides, the middle of the second gear (104) is connected with the threaded rod (105), and the outer portion of the threaded rod (105) is connected with the movable frame (106), and the lower end of the movable frame (106) is penetrated by the sliding rod (107).

5. The electric vehicle wheel hub hole detection and positioning device according to claim 2, characterized in that: The vibration assembly (2) comprises a second motor (201), a fixed plate (202) and a rotating telescopic rod (203), wherein the upper portion of the second motor (201) is connected to the fixed plate (202), and the rotating end of the second motor (201) is connected to the rotating telescopic rod (203).

6. The electric vehicle wheel hub hole detection and positioning device according to claim 5, characterized in that: The vibration assembly (2) further comprises a first spring (204) and a contact plate (205), and the first spring (204) is arranged outside the rotating telescopic rod (203), and the upper end of the rotating telescopic rod (203) is connected to the contact plate (205).

7. The electric vehicle wheel hub hole detection and positioning device according to claim 2, characterized in that: The compressed air assembly (3) comprises an air box (301), an air pipe (302), a piston plate (303), an upgrade rod (304) and a steel ball (305), wherein the lower end of the air box (301) away from the vibration assembly (2) is connected to the air pipe (302), a piston plate (303) is installed inside the air box (301), and the upper end of the piston plate (303) is connected to the upgrade rod (304), and the upper end of the upgrade rod (304) is inlaid with a steel ball (305).

8. The electric vehicle wheel hub hole detection and positioning device according to claim 1, characterized in that: The side clamping assembly (5) comprises an airbag (501), an upper sleeve (502), a lower sleeve (503) and a sealing pad (504), wherein the upper end of the airbag (501) is connected to the upper sleeve (502), the lower end of the airbag (501) is connected to the lower sleeve (503), and the sealing pad (504) is installed at the inner lower end of the lower sleeve (503).

9. The electric vehicle wheel hub hole detection and positioning device according to claim 8, characterized in that: The side clamping assembly (5) further comprises a bearing (505) and a hard tube (506), and the bearing (505) is installed inside the upper sleeve (502), and the hard tube (506) is connected inside the bearing (505).

10. The electric vehicle wheel hub hole detection and positioning device according to claim 2, characterized in that: The cleaning assembly (7) comprises a bracket (701), an arc frame (702), a polishing and cleaning column (703) and an elastic drawstring (704), wherein the upper end of the bracket (701) is connected to the arc frame (702), an end of the arc frame (702) away from the bracket (701) is connected to the polishing and cleaning column (703), and the upper end of the arc frame (702) is connected to the elastic drawstring (704).

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