Magnesium-aluminum alloy hub air tightness detection device

Abstract

The invention discloses an air tightness detection device for a magnesium-aluminum alloy hub, and relates to the technical field of air tightness detection. The device comprises a machine base, the inner wall of the machine base is rotationally connected with a rotating rod through a bearing, an air supply channel is formed in the side face of the rotating rod in a penetrating mode, an open hole is formed in the inner wall of a placement assembly located on a connecting assembly in a penetrating mode, and a water tank assembly used for detecting the air tightness of the magnesium-aluminum alloy hub is arranged on the side face of the machine base. When the air tightness of the hub is detected, the driving assembly drives the rotating rod to rotate, the rotating rod drives the placing assembly on the surface to turn over, and the position of bubbles generated on the surface of the hub is observed at the same time, so that in the detection process of the bottom hub and when the hub is detected, the air tightness of the hub is detected through the rotatably arranged clamp structure; and during detection, the next wheel hub can be installed, so that the intermittent waiting time during detection is shortened, and the detection efficiency of the air tightness of the wheel hub is relatively improved.

Description

Technical Field

[0001] The invention relates to the technical field of air tightness detection, and in particular to an air tightness detection device for a magnesium-aluminum alloy wheel hub. Background Art

[0002] It is widely used in the manufacturing industry of vehicles such as automobiles and motorcycles. Magnesium-aluminum alloy wheels are widely used due to their light weight and high strength, but the air tightness of the wheel is crucial to the safety and performance of the vehicle. If the wheel is not airtight, it may cause the tire pressure to drop too quickly, affecting the vehicle's handling performance and driving safety. The air tightness detection device can promptly detect wheels with quality problems during the wheel production process or maintenance process to ensure product quality.

[0003] The current magnesium-aluminum alloy wheel hub air tightness detection device, when conducting a water test on the air tightness of the magnesium-aluminum alloy wheel hub, first places the wheel hub on a fixture, and drives the fixture and the wheel hub to slowly immerse in a test water tank filled with an appropriate amount of clean water through a lifting structure, and observes whether bubbles are generated on the surface of the wheel hub to detect the air tightness of the wheel hub. However, during the test, generally only one set of fixtures is set on the detection device. Therefore, when testing the next wheel hub, it takes some time to install the wheel hub on the fixture. During the installation process, whether mechanical connection or sealing material-assisted installation is used, a certain amount of time is required to ensure that the stability and sealing of the installation are in the best state. If the waiting time is skipped and the test is performed directly, the test result may be inaccurate and cannot truly reflect the actual air tightness of the wheel hub. At this time, the intermittent waiting time when testing through the device will become longer, which will affect the air tightness detection efficiency.

[0004] Therefore, a magnesium-aluminum alloy wheel hub air tightness detection device is proposed. Summary of the invention

[0005] The purpose of the present invention is to solve the problem that during detection, only one set of clamps is generally provided on the detection device. Therefore, when detecting the next wheel hub, it takes some time to install the wheel hub on the clamp. During the installation process, whether mechanical connection or sealing material-assisted installation is adopted, a certain amount of time is required to ensure that the stability of the installation and the sealing performance reach the best state. If the waiting time is skipped and the detection is carried out directly, the detection result may be inaccurate and unable to truly reflect the actual air tightness of the wheel hub. At this time, the intermittent waiting time during detection by the device will become longer, which will further affect the problem of air tightness detection efficiency. The present invention provides a magnesium-aluminum alloy wheel hub air tightness detection device.

[0006] In order to achieve the above-mentioned purpose, the present invention specifically adopts the following technical solutions:

[0007] A magnesium-aluminum alloy wheel hub air tightness detection device comprises a machine base, the inner wall of the machine base is rotatably connected to a rotating rod through a bearing, the surface of the machine base is provided with a driving component for rotating the rotating rod, the surface of the rotating rod and the surface of the machine base are provided with a clamping component for installation during magnesium-aluminum alloy wheel hub detection, the surface of the clamping component is provided with an electric push rod, the end of the rotating rod away from the machine base is provided with a connecting component, the surfaces of the connecting component and the surfaces of the clamping component are both provided with a placement component for installation during magnesium-aluminum alloy wheel hub detection, an air supply channel is penetrated through the side of the rotating rod, the inner wall of the connecting component is provided with an opening component for inflation during detection, the inner wall of the placement component located on the connecting component is penetrated with an opening, the surface of the machine base and the side of the rotating rod are provided with an inflation component, and the side of the machine base is provided with a water tank component for magnesium-aluminum alloy wheel hub air tightness detection.

[0008] Furthermore, the driving assembly includes a motor, the surface of the base is fixedly connected with the motor, the output end of the motor is provided with a transmission belt structure, and the rotating rod is connected to the transmission belt structure.

[0009] Furthermore, the clamping assembly includes a connecting sleeve, the surface of the rotating rod is fixedly sleeved with the connecting sleeve, and the electric push rod is fixedly connected to the surface of the connecting sleeve, the side of the machine base is fixedly connected with a mounting ring, and the surface of the connecting sleeve fits the inner wall of the mounting ring, the surface of the connecting sleeve is fixedly connected with a connecting rod, the surface of the connecting rod is movably sleeved with a splint, and the telescopic rod of the electric push rod is fixedly connected to the splint, and the placement assembly is arranged on the surface of the splint.

[0010] Furthermore, the connecting component includes a connecting piece, the side of the rotating rod away from the machine base is fixedly connected to the connecting piece, the surface of the connecting piece is fixedly connected to a connecting block, the surface of the connecting block is fixedly sleeved with a second splint, and the placement component is fixedly connected to the surface of the second splint.

[0011] Furthermore, the placement component includes a nitrile rubber block, and multiple nitrile rubber blocks are respectively installed on the surface of the first clamp and the surface of the second clamp through nuts, and the openings penetrate the surface of the nitrile rubber block located on the second clamp, and the surface of the nitrile rubber block is provided with a groove.

[0012] Furthermore, the opening assembly includes a through groove, the connecting piece is provided with a through groove inside, and the inner wall of the connecting block is provided with an annular hole through it.

[0013] Furthermore, the inflation component includes a fan, the surface of the base is fixedly connected to the fan, the air outlet end of the fan is fixedly connected to a connecting pipe, the side of the rotating rod away from the connecting component is fixedly connected to a mounting piece, and the connecting pipe is rotatably connected to the inner wall of the mounting piece through a bearing.

[0014] Furthermore, the water tank assembly includes an electric push rod 2, a telescopic rod of the electric push rod 2 is fixedly connected to a fixed block, and a surface of the fixed block is fixedly connected to a water tank.

[0015] The beneficial effects of the present invention are as follows:

[0016] When the air tightness of the wheel hub is tested, the water tank is first located at the bottom, and the groove can be opened according to the corresponding size of the wheel hub to be tested. When the wheel hub is installed, one side of the wheel hub is first aligned with the groove placed on the second clamping plate, and the electric push rod drives the first clamping plate to move, and the first clamping plate drives the surface placement component to move. The wheel hub is clamped and installed between the two placement components. The setting of the inflation component is used for inflation processing during the air tightness test of the wheel hub. The gas enters the interior of the clamping wheel hub through the air supply channel, the through groove, the annular hole and the opening, and the driving component drives the rotating rod to rotate, and the rotating rod drives the surface placement component to flip Rotate, at this time the wheel hub installed on the top is rotated to the bottom, the water tank moves up, and then the inflation component is inflated to observe whether there are bubbles on the surface of the wheel hub in the clean water, and at the same time observe the position of the bubbles on the surface of the wheel hub. At this time, during the inspection of the bottom wheel hub, similarly, the wheel hub can continue to be clamped and installed through the top placement component, and the sealing of the wheel hub after installation can be determined. At this time, when the wheel hub is inspected, the next wheel hub can be installed during the inspection by rotating the fixture structure, thereby shortening the intermittent waiting time during the inspection and relatively improving the inspection efficiency of the air tightness of the wheel hub. BRIEF DESCRIPTION OF THE DRAWINGS

[0017] Figure 1 It is a schematic diagram of the three-dimensional structure of the present invention;

[0018] Figure 2 It is an enlarged schematic diagram of the structure at A of the present invention;

[0019] Figure 3 It is a rear view schematic diagram of the three-dimensional structure of the present invention;

[0020] Figure 4 It is an enlarged schematic diagram of the structure at B of the present invention;

[0021] Figure 5 It is a partial cross-sectional schematic diagram of the present invention;

[0022] Figure 6 It is an enlarged schematic diagram of the structure at C of the present invention;

[0023] Figure 7 It is an enlarged schematic diagram of the structure at D of the present invention;

[0024] Figure 8 It is a schematic diagram of the local structure of the present invention.

[0025] Figure numerals: 1, base; 2, rotating rod; 3, driving assembly; 301, motor; 302, transmission belt structure; 4, clamping assembly; 401, connecting sleeve; 402, mounting ring; 403, connecting rod; 404, clamping plate one; 5, electric push rod one; 6, connecting assembly; 601, connecting piece; 602, connecting block; 603, clamping plate two; 7, placing assembly; 701, nitrile rubber block; 702, groove; 8, air supply channel; 9, opening assembly; 901, through groove; 902, annular hole; 10, opening; 11, inflation assembly; 1101, fan; 1102, connecting pipe; 1103, mounting piece; 12, water tank assembly; 1201, electric push rod two; 1202, fixing block; 1203, water tank. DETAILED DESCRIPTION

[0026] In order to make the purpose, technical solutions and advantages of the embodiments of the present invention clearer, the technical solutions in the embodiments of the present invention will be clearly and completely described below in conjunction with the drawings in the embodiments of the present invention. Obviously, the described embodiments are part of the embodiments of the present invention, not all of the embodiments. Generally, the components of the embodiments of the present invention described and shown in the drawings here can be arranged and designed in various different configurations.

[0027] Therefore, the following detailed description of the embodiments of the present invention provided in the accompanying drawings is not intended to limit the scope of the invention claimed for protection, but merely represents selected embodiments of the present invention. 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.

[0028] It should be noted that similar reference numerals and letters represent similar items in the following drawings, so once an item is defined in one drawing, it does not need to be further defined and explained in the subsequent drawings. In addition, the terms "first", "second", etc. are only used to distinguish the description and cannot be understood as indicating or implying relative importance.

[0029] In the description of the embodiments of the present invention, it should be noted that the terms "inside", "outside", "upper", etc. indicate orientations or positional relationships based on the orientations or positional relationships shown in the accompanying drawings, or are the orientations or positional relationships in which the inventive product is usually placed when used. They are only for the convenience of describing the present invention and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and therefore cannot be understood as a limitation on the present invention.

[0030] like Figure 1-8As shown, a magnesium-aluminum alloy wheel hub air tightness detection device comprises a machine base 1, the inner wall of the machine base 1 is rotatably connected with a rotating rod 2 through a bearing, the surface of the machine base 1 is provided with a driving component 3 for rotating the rotating rod 2, the surface of the rotating rod 2 and the surface of the machine base 1 are provided with a clamping component 4 for installation during magnesium-aluminum alloy wheel hub detection, the surface of the clamping component 4 is provided with an electric push rod 5, the end of the rotating rod 2 away from the machine base 1 is provided with a connecting component 6, the surface of the connecting component 6 and the surface of the clamping component 4 are both provided with a placing component 7 for installation during magnesium-aluminum alloy wheel hub detection, an air supply channel 8 is opened through the side of the rotating rod 2, the inner wall of the connecting component 6 is provided with an opening component 9 for inflation during detection, and a hole component 9 located at the connecting component The inner wall of the placement component 7 on the component 6 is penetrated with an opening 10, the surface of the base 1 and the side of the rotating rod 2 are provided with an inflatable component 11, and the side of the base 1 is provided with a water tank component 12 for the air tightness detection of the magnesium-aluminum alloy wheel hub; specifically, the magnesium-aluminum alloy wheel hub air tightness detection device, when detecting the air tightness of the wheel hub, the setting of the water tank component 12 is used for the immersion detection of the wheel hub, the water holding part of the water tank component 12 is first located at the bottom, the setting of the placement component 7 is used for the placement and installation of the wheel hub, and the placement component 7 can be designed accordingly according to the size of the wheel hub to be detected to install wheel hubs of different sizes. When the wheel hub is installed, one side of the wheel hub is first aligned with the placement component placed on the connecting component 6 The placement component 7 is then moved on the clamping component 4 to clamp and install the wheel hub. The setting of the inflation component 11 is used for inflation during the air tightness detection of the wheel hub. At this time, the gas generated by the inflation component 11 can enter the clamped and installed wheel hub through the air supply channel 8, the opening component 9 and the opening 10. The inspection personnel judge whether there is a sound of gas leakage to ensure in advance whether the sealing of the wheel hub installation has reached the best state. Then, through the setting of the driving component 3, the rotating rod 2 is driven to rotate, and the rotating rod 2 drives the surface connection component 6 to flip. At this time, the wheel hub installed on the top of the connection component 6 is rotated to the bottom, and the water holding part of the water tank component 12 is moved up, so that the wheel hub is immersed in clean water, and then through The inflation component 11 is inflated to observe whether bubbles are generated on the surface of the hub in the clear water, and the position of the bubbles generated on the surface of the hub is observed to detect the air tightness of the hub. At the same time, during the detection process, the hub can be installed through the top placement component 7. After the bottom hub detection is completed, the water holding part of the water tank component 12 moves downward, and the rotating rod 2 drives the hub to flip over. The upper hub can be taken out and the hub at the bottom can continue to be tested. At this time, when the hub is tested, the next hub can be installed by rotating the fixture structure, thereby shortening the intermittent waiting time during the detection and improving the detection efficiency of the hub air tightness to a relatively large extent.

[0031] like Figure 3 , Figure 4As shown, the drive component 3 includes a motor 301, the surface of the base 1 is fixedly connected with the motor 301, the output end of the motor 301 is provided with a transmission belt structure 302, and the rotating rod 2 is connected to the transmission belt structure 302; specifically, the setting of the drive component 3 is used for the rotation of the rotating rod 2 during the hub detection and installation to cooperate with the detection process of the hub, the motor 301 is installed on the surface of the base 1, when the rotating rod 2 needs to rotate, the motor 301 runs, and the output end of the motor 301 can drive the rotating rod 2 to rotate on the base 1 through the transmission of the transmission belt structure 302, thereby changing the position of the placement component 7.

[0032] like Figure 1 , Figure 2 , Figure 3 As shown, the clamping assembly 4 includes a connecting sleeve 401, the surface of the rotating rod 2 is fixedly sleeved with the connecting sleeve 401, and the electric push rod 15 is fixedly connected to the surface of the connecting sleeve 401, the side of the machine base 1 is fixedly connected with a mounting ring 402, and the surface of the connecting sleeve 401 fits the inner wall of the mounting ring 402, the surface of the connecting sleeve 401 is fixedly connected with a connecting rod 403, the surface of the connecting rod 403 is movably sleeved with a clamping plate 1 404, and the telescopic rod of the electric push rod 15 is fixedly connected to the clamping plate 1 404, and the placement assembly 7 is arranged on the surface of the clamping plate 1 404; specifically, the clamping assembly 4 The connection sleeve 401 is connected to the surface of the rotating rod 2 and is used for the installation and use of the electric push rod 5 and the placement component 7. The mounting ring 402 cooperates with the rotation process of the connecting sleeve 401. The connecting rod 403 is used for the installation bearing and guidance of the clamping plate 404 during movement. When the wheel hub is installed and disassembled, the clamping plate 404 is pushed to move by the telescopic rod of the electric push rod 5, and the clamping plate 404 moves on the connecting rod 403, and then the clamping plate 404 drives the surface placement component 7 to clamp and install the wheel hub. When disassembling, the telescopic rod of the electric push rod 5 drives the clamping plate 404 to return to its original position.

[0033] like Figure 6 , Figure 8 As shown, the connecting component 6 includes a connecting piece 601, and the connecting piece 601 is fixedly connected to the side of the rotating rod 2 away from the machine base 1, and the surface of the connecting piece 601 is fixedly connected to a connecting block 602, and the surface of the connecting block 602 is fixedly sleeved with a second clamping plate 603, and the placement component 7 is fixedly connected to the surface of the second clamping plate 603; specifically, the setting of the connecting component 6 is used for the installation of the placement component 7, and at the same time, through the opening of the internal opening component 9, the gas filled into the inflation component 11 can be moved into the interior of the wheel hub to cooperate with the air tightness detection process of the wheel hub. The connecting piece 601 is installed on the rotating rod 2 for use, the second clamping plate 603 is used to install the placement component 7, and the connecting block 602 stably connects the connecting piece 601 and the second clamping plate 603. Through the connection between the clamping component 4 and the connecting component 6, the rotating rod 2 can drive the placement component 7 to rotate.

[0034] like Figure 6 As shown, the placement component 7 includes a nitrile rubber block 701, and multiple nitrile rubber blocks 701 are respectively installed on the surface of the first clamp plate 404 and the surface of the second clamp plate 603 through nuts, and the opening 10 runs through the surface of the nitrile rubber block 701 located on the second clamp plate 603, and the surface of the nitrile rubber block 701 is provided with a groove 702; specifically, the setting of the placement component 7 is used for sealing installation during wheel hub detection, the nitrile rubber block 701 is polymerized by butadiene and acrylonitrile, has good oil resistance, wear resistance and chemical corrosion resistance, and has a wide hardness range. The hardness of the nitrile rubber block 701 can ensure that it is not easy to deform during use and can effectively play a sealing role. The design of the groove 702 on the nitrile rubber block 701, the groove 702 can be opened accordingly according to the corresponding size of the wheel hub to be detected, so that the wheel hub of different sizes can be installed, and the fit between the wheel hub and the inner wall of the groove 702 can also be ensured, thereby ensuring the installation sealing during the wheel hub detection. When the wheel hub is installed, the outer wall of the wheel hub is aligned and placed in the groove 702.

[0035] like Figure 6 , Figure 7 , Figure 8 As shown, the opening component 9 includes a through groove 901, the interior of the connecting piece 601 is provided with a through groove 901, and the inner wall of the connecting block 602 is provided with an annular hole 902; specifically, the setting of the opening component 9 is used for the gas filled into the inflatable component 11 to enter the interior of the placement component 7 through the connecting component 6, and cooperate with the air tightness detection process of the wheel hub in the water tank component 12. The through groove 901 is connected with the air supply channel 8, and the annular hole 902 is connected with the opening 10. At this time, the gas filled into the inflatable component 11 enters the opening 10 through the through groove 901 and the annular hole 902, and then enters the inner wall of the wheel hub.

[0036] like Figure 3 , Figure 4 As shown, the inflation component 11 includes a fan 1101, the surface of the base 1 is fixedly connected with the fan 1101, the air outlet end of the fan 1101 is fixedly connected with a connecting pipe 1102, the side of the rotating rod 2 away from the connecting component 6 is fixedly connected with a mounting member 1103, and the connecting pipe 1102 is rotatably connected to the inner wall of the mounting member 1103 through a bearing; specifically, the setting of the inflation component 11 is used for inflation processing during hub air tightness detection, and when the fan 1101 is running, the fan 1101 delivers gas into the air supply channel 8 inside the rotating rod 2 through the connecting pipe 1102 and the mounting member 1103, and the connecting pipe 1102 and the mounting member 1103 are rotatably connected through a bearing. Therefore, when the rotating rod 2 rotates, the connecting pipe 1102 will not rotate, thereby affecting the inflation processing of the fan 1101.

[0037] like Figure 1As shown, the water tank assembly 12 includes an electric push rod 1201, the telescopic rod of the electric push rod 1201 is fixedly connected to a fixed block 1202, and the surface of the fixed block 1202 is fixedly connected to a water tank 1203; specifically, the setting of the water tank assembly 12 uses clean water for air tightness detection of the wheel hub, and the water tank assembly 12 can be raised and lowered to cooperate with the flipping process of the placement assembly 7. The telescopic rod of the electric push rod 1201 is connected to the fixed block 1202, and the electric push rod 1201 can drive the water tank 1203 to move up and down, so that the clean water can immerse the wheel hub without affecting the rotation process of the placement assembly 7.

[0038] In summary: when the magnesium-aluminum alloy air tightness detection device detects the air tightness of the wheel hub, the water tank 1203 is set for the immersion detection of the magnesium-aluminum alloy wheel hub, and the water tank 1203 is first located at the bottom. The nitrile rubber block 701 is set for the placement and installation of the wheel hub. The groove 702 on the nitrile rubber block 701 can be opened accordingly according to the corresponding size of the wheel hub to be detected, so that different sizes of wheels can be installed, and the fit between the wheel hub and the inner wall of the groove 702 can be ensured, thereby ensuring the installation sealing of the wheel hub during detection. When the wheel hub is installed, one side of the wheel hub is first aligned and placed on the clamp. The groove 702 on the second plate 603 is then controlled by an external control device, and the telescopic rod of the electric push rod 5 drives the clamping plate 404 to move. The connecting rod 403 can guide the movement of the clamping plate 404 and install the clamping plate 404 at the same time. The clamping plate 404 drives the placement component 7 on the surface to approach the placement component 7 on the surface of the second clamping plate 603. After the movement of the clamping plate 404 is completed, the wheel hub is clamped and installed between the two placement components 7. The setting of the inflation component 11 is used for inflation processing during the air tightness detection of the wheel hub. At this time, the fan 1101 is running, and the fan 1101 is connected to the rotating rod 2 through the connecting pipe 1102. The gas is filled, and the gas generated by the fan 1101 enters the interior of the clamping hub through the air supply channel 8, the through groove 901, the annular hole 902 and the opening 10. At this time, the inspection personnel judge whether there is a sound of gas leakage at the connection to ensure in advance whether the sealing of the hub installation is in the best state. Then, through the setting of the drive component 3, the rotating rod 2 is driven to rotate, and the output end of the motor 301 is driven by the transmission belt structure 302 of the same specification to drive the rotating rod 2 to rotate. The rotating rod 2 drives the surface connection component 6 to flip. At this time, the hub installed on the top of the connection component 6 is rotated to the bottom, and the telescopic rod of the electric push rod 2 1201 is fixed by the fixed block 1 202 drives the water tank 1203 to move, and the water tank 1203 moves up to immerse the wheel hub installed on the placement component 7, and then the inflation component 11 is inflated to observe whether bubbles are generated on the surface of the wheel hub in the clean water, and at the same time observe the position of the bubbles generated on the surface of the wheel hub to detect the air tightness of the wheel hub. At this time, during the inspection of the bottom wheel hub, similarly, the wheel hub can continue to be clamped and installed through the top placement component 7, and at the same time determine the sealing of the wheel hub after installation. After the inspection is completed, the water tank 1203 moves down, and the rotating rod 2 drives the placement component 7 to flip, the upper wheel hub can be taken out, and the wheel hub at the bottom can continue to be inspected.

[0039] The above shows and describes the basic principles, main features and advantages of the present invention. Those skilled in the art should understand that the present invention is not limited to the above embodiments. The above embodiments and descriptions only describe the principles of the present invention. The present invention may be subject to various changes and improvements without departing from the spirit and scope of the present invention. These changes and improvements fall within the scope of the present invention. The scope of protection claimed by the present invention is defined by the attached claims and their equivalents.

Claims

1. A magnesium-aluminum alloy wheel hub air tightness detection device, characterized in that: The invention comprises a machine base (1), wherein the inner wall of the machine base (1) is rotatably connected to a rotating rod (2) via a bearing, a driving component (3) for rotating the rotating rod (2) is arranged on the surface of the machine base (1), a clamping component (4) for installation during magnesium-aluminum alloy wheel hub inspection is arranged on the surface of the rotating rod (2) and the surface of the machine base (1), an electric push rod (5) is arranged on the surface of the clamping component (4), and a connecting component (6) is arranged at one end of the rotating rod (2) away from the machine base (1), and the surface of the connecting component (6) and the surface of the clamping component (4) are connected to each other. A placement component (7) for installation during magnesium-aluminum alloy wheel hub testing is provided, an air supply channel (8) is provided through the side of the rotating rod (2), an opening component (9) for inflation during testing is provided on the inner wall of the connecting component (6), an opening (10) is provided through the inner wall of the placement component (7) located on the connecting component (6), an inflation component (11) is provided on the surface of the machine base (1) and the side of the rotating rod (2), and a water tank component (12) for gas tightness testing of the magnesium-aluminum alloy wheel hub is provided on the side of the machine base (1).

2. The magnesium-aluminum alloy wheel hub air tightness detection device according to claim 1, characterized in that: The driving assembly (3) comprises a motor (301), the surface of the machine base (1) is fixedly connected to the motor (301), an output end of the motor (301) is provided with a transmission belt structure (302), and the rotating rod (2) is connected to the transmission belt structure (302).

3. The magnesium-aluminum alloy wheel hub air tightness detection device according to claim 1, characterized in that: The gripping assembly (4) comprises a connecting sleeve (401), the surface of the rotating rod (2) is fixedly sleeved with the connecting sleeve (401), and the electric push rod (5) is fixedly connected to the surface of the connecting sleeve (401), the side of the machine base (1) is fixedly connected with a mounting ring (402), and the surface of the connecting sleeve (401) is in contact with the inner wall of the mounting ring (402), the surface of the connecting sleeve (401) is fixedly connected with a connecting rod (403), the surface of the connecting rod (403) is movably sleeved with a clamping plate (404), the telescopic rod of the electric push rod (5) is fixedly connected to the clamping plate (404), and the placement assembly (7) is arranged on the surface of the clamping plate (404).

4. The magnesium-aluminum alloy wheel hub air tightness detection device according to claim 3, characterized in that: The connecting assembly (6) comprises a connecting piece (601), a side of the rotating rod (2) away from the machine base (1) is fixedly connected to the connecting piece (601), a connecting block (602) is fixedly connected to the surface of the connecting piece (601), a second clamping plate (603) is fixedly sleeved on the surface of the connecting block (602), and the placement assembly (7) is fixedly connected to the surface of the second clamping plate (603).

5. The magnesium-aluminum alloy wheel hub air tightness detection device according to claim 4, characterized in that: The placement assembly (7) comprises a nitrile rubber block (701), wherein a plurality of the nitrile rubber blocks (701) are respectively mounted on the surface of the first clamping plate (404) and the surface of the second clamping plate (603) via nuts, and an opening (10) is provided through the surface of the nitrile rubber block (701) located on the second clamping plate (603), and a groove (702) is provided on the surface of the nitrile rubber block (701).

6. The magnesium-aluminum alloy wheel hub air tightness detection device according to claim 5, characterized in that: The hole opening component (9) comprises a through groove (901), the connecting piece (601) is provided with a through groove (901) inside, and the inner wall of the connecting block (602) is provided with a circular hole (902) penetrating therethrough.

7. The magnesium-aluminum alloy wheel hub air tightness detection device according to claim 1, characterized in that: The inflation component (11) comprises a fan (1101), the fan (1101) is fixedly connected to the surface of the machine base (1), the air outlet end of the fan (1101) is fixedly connected to a connecting pipe (1102), a side of the rotating rod (2) away from the connecting component (6) is fixedly connected to a mounting member (1103), and the connecting pipe (1102) is rotatably connected to the inner wall of the mounting member (1103) via a bearing.

8. The magnesium-aluminum alloy wheel hub air tightness detection device according to claim 1, characterized in that: The water tank assembly (12) comprises a second electric push rod (1201), the telescopic rod of the second electric push rod (1201) being fixedly connected to a fixing block (1202), and the surface of the fixing block (1202) being fixedly connected to a water tank (1203).

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