Double-effect integrated turning plate clamp for valve hole

Abstract

The double-effect integrated turning plate clamp for the valve hole comprises a machine cabinet, a mounting frame is fixedly connected to the upper portion of the machine cabinet, a sliding mechanism is arranged on the lower portion of the inner wall of the mounting frame, a polishing and drilling mechanism is connected to the lower portion of the sliding mechanism, and a clamp is rotationally connected into the space of the mounting frame and comprises a containing plate. The upper portion of the placing plate is fixedly connected with a plurality of arc-shaped blocks in an annular sequence, the plurality of arc-shaped blocks are combined to form an annular structure, and the upper portion of the placing plate is slidably connected with more than three clamping mechanisms. And meanwhile, the clamp can freely rotate at multiple angles and is matched with precise adjustment of the grinding and drilling integrated mechanism, high automation and multi-working-condition adaptability of hub machining are achieved, and the machining efficiency and precision are remarkably improved.

Description

Technical Field

[0001] The invention belongs to the field of wheel hub processing, and in particular relates to a valve hole dual-effect integrated flap fixture. Background Art

[0002] In the process of wheel hub processing, traditional equipment usually needs to perform grinding and drilling operations separately, which means that the workpiece needs to be repositioned and clamped after completing one process, which increases the operation steps and time cost. This step-by-step processing not only reduces the overall efficiency, but also easily causes positioning errors due to frequent clamping. In addition, traditional clamping methods usually adopt fixed or single clamping modes, which lack flexibility. For wheels with complex shapes or non-standard structures, it is difficult to achieve multi-angle precise fixation and stable support. This makes it easy for the wheel hub to slide or tilt due to unstable clamping during the processing process, further affecting the accuracy and consistency of grinding and drilling. In the production of complex wheel hubs, traditional equipment often cannot effectively respond to different processing requirements, and requires manual continuous adjustment of the equipment position and angle, which increases the complexity of operation and the risk of errors, and ultimately affects product quality and production efficiency.

[0003] In view of this, the present invention is proposed. Summary of the invention

[0004] The technical problem to be solved by the present invention is to overcome the deficiencies of the prior art and provide a valve hole dual-effect flap clamp to solve the problems raised in the above-mentioned background technology.

[0005] In order to solve the above technical problems, the basic concept of the technical solution adopted by the present invention is:

[0006] A double-effect flap clamp for a valve hole comprises: a cabinet, a mounting frame fixedly connected to the top of the cabinet, a sliding mechanism arranged below the inner wall of the mounting frame, a grinding and drilling mechanism connected below the sliding mechanism, a clamp rotatably connected in the space of the mounting frame, the clamp comprises a placement plate, a plurality of arc blocks are fixedly connected in a circular arrangement above the placement plate, the plurality of arc blocks are combined into an annular structure, more than three clamping mechanisms are slidably connected to the top of the placement plate, and space for subsequent clamping mechanisms to slide is reserved between every two adjacent arc blocks.

[0007] Optionally, the sliding mechanism includes a telescopic cylinder fixedly connected above the mounting frame, the telescopic end of the telescopic cylinder is fixedly connected to a sliding frame passing through the mounting frame, the bottom of the sliding frame is slidably connected to a guide frame, and the grinding and drilling mechanism slides inside the guide frame.

[0008] Optionally, a screw is rotatably connected to the sliding frame and the guide frame in the length direction, a first slider is connected to the top of the guide frame and is attached to the bottom of the inner wall of the sliding frame and is threadedly connected to the screw, and a second slider is connected to the top of the grinding and drilling mechanism and is attached to the bottom of the inner wall of the guide frame and is threadedly connected to the screw.

[0009] Optionally, the grinding and drilling mechanism includes two side plates fixed under the second slider, a mounting plate is rotatably connected between the two side plates, servo motors are fixedly connected above and below the mounting plate, and the output ends of the two servo motors are respectively connected to a grinding disc and a milling cutter.

[0010] Optionally, a first self-locking motor is fixedly connected to one side of the mounting plate, and an output end of the first self-locking motor passes through and is fixedly connected between the side plate and the mounting plate.

[0011] Optionally, the clamping mechanism includes a slide plate slidably connected in the guide groove, a clamping block for clamping the wheel hub is fixedly connected to the top of the slide plate, a positioning plate is fixedly connected to the bottom of the slide plate, a rotating plate is rotatably connected to the bottom of the placement plate, and a rod body hinged to the positioning plate is fixedly connected to the top of the rotating plate.

[0012] Optionally, a linear cylinder is arranged under the rotating plate, wherein positioning frames are connected to the bottom of two relative positioning plates, positioning rods are connected to both sides of the positioning frames, fisheyes are connected to both ends of the linear cylinder, and the fisheyes and the positioning rods are rotatably connected.

[0013] Optionally, the mounting frame is composed of an upper plate and four columns thereof, the columns are fixedly connected between the upper plates, a fixed plate is fixedly connected between every two adjacent columns, and a circular plate is rotatably connected between the two fixed plates.

[0014] Optionally, arc frames are fixedly connected on both sides of the fixed plate, the circular plate is rotatably connected to the inside of the arc frame, a limit plate is arranged under every two adjacent arc plates, a reduction motor is fixedly connected under the limit plate, and the output end of the reduction motor is fixedly connected between the limit plate and the circular plate.

[0015] Optionally, a plurality of support columns are arranged between the circular plate and the placement plate.

[0016] After adopting the above technical solution, the present invention has the following beneficial effects compared with the prior art. Of course, any product implementing the present invention does not necessarily need to achieve all the advantages described below at the same time:

[0017] The present invention realizes precise positioning by means of arc blocks arranged in a ring on the placement plate, and combines a plurality of slidable clamping mechanisms to flexibly fix and stably support the wheel hub. Meanwhile, the clamp can freely rotate at multiple angles, and cooperates with the precise adjustment of the integrated grinding and drilling mechanism to realize high automation and adaptability to multiple working conditions in wheel hub processing, thereby significantly improving processing efficiency and precision.

[0018] The specific implementation modes of the present invention are further described in detail below in conjunction with the accompanying drawings. BRIEF DESCRIPTION OF THE DRAWINGS

[0019] The drawings described below are only some embodiments. For those skilled in the art, other drawings can be obtained based on these drawings without creative work.

[0020] In the figure:

[0021] Figure 1 This is one of the schematic diagrams of the three-dimensional structure of the flap fixture;

[0022] Figure 2 This is the second schematic diagram of the three-dimensional structure of the flap fixture;

[0023] Figure 3 It is one of the schematic diagrams of the three-dimensional structure of the placement plate;

[0024] Figure 4 The second schematic diagram of the three-dimensional structure of the placement plate;

[0025] Figure 5 for Figure 1 Schematic diagram of the structure at point A in the middle.

[0026] In the accompanying drawings, the components represented by the reference numerals are listed as follows:

[0027] 1. Cabinet; 2. Mounting frame; 4. Placement plate; 5. Arc block; 6. Telescopic cylinder; 7. Sliding frame; 8. Guide frame; 9. Screw; 10. Side plate; 11. Mounting plate; 12. Servo motor; 13. Grinding disc; 14. Milling cutter; 15. First self-locking motor; 16. Slide plate; 17. Clamping block; 18. Positioning plate; 19. Rotating plate; 20. Rod body; 21. Linear cylinder; 22. Positioning frame; 23. Positioning rod; 24. Column; 25. Fixed plate; 26. Round plate; 27. Arc frame; 28. Limit plate; 29. ​​Reducer motor; 30. Support column.

[0028] It should be noted that these drawings and textual descriptions are not intended to limit the conceptual scope of the present invention in any way, but are intended to illustrate the concept of the present invention for those skilled in the art by referring to specific embodiments. DETAILED DESCRIPTION

[0029] The present invention will now be described in further detail with reference to the accompanying drawings.

[0030] See also Figure 1-5 As shown, in this embodiment, a valve hole dual-effect flap fixture is provided, including a cabinet 1 that constitutes the base structure of the device as a whole, provides stable support, and ensures the tight integration of various modules. A mounting frame 2 is connected to the top of the cabinet 1 through a firm structure. The mounting frame 2 serves as the core support frame of the entire device, which not only ensures the stability of the device, but also provides space for the integration of other sub-devices. A sliding mechanism is designed below the inner wall of the mounting frame 2. The sliding mechanism can move smoothly along a preset slide rail or guide structure to achieve precise adjustment of the grinding and drilling mechanisms at different positions to meet the requirements of different processing scenarios. A grinding and drilling mechanism is further connected below the sliding mechanism. The mechanism integrates a grinding disc 13 and a drilling tool, and can achieve switching between different processes under the drive of a servo motor 12, thereby improving the degree of automation of processing.

[0031] A fixture is also rotatably connected in the internal space of the mounting frame 2, and the fixture can rotate around the support shaft in the mounting frame 2 to provide multi-angle processing capabilities. The core part of the fixture includes a placement plate 4 for supporting the wheel hub to be processed. In order to ensure the precise positioning and stable fixation of the wheel hub, a plurality of arc blocks 5 are arranged in a ring above the placement plate 4. These arc blocks 5 are arranged in a certain order to form a complete annular structure, which circumferentially positions the wheel hub and effectively prevents it from being displaced during the processing. In addition, three or more clamping mechanisms are slidably connected above the placement plate 4, and a certain sliding space is left between every two adjacent arc blocks 5, leaving a path for the movement of the clamping mechanism. The clamping mechanism can be flexibly clamped according to the size and shape of the wheel hub through sliding adjustment to ensure the stability of the wheel hub during the processing.

[0032] These clamping mechanisms can not only adapt to different sizes of wheels through flexible adjustment, but also fit closely to the outer wall of the wheel during processing, thereby enhancing the clamping effect. The annular structure of the arc block 5 not only positions the wheel, but also avoids the displacement error caused by improper clamping during processing. Through the design of the rotating fixture, not only multi-angle processing is achieved, but also the grinding and drilling mechanism can be freely adjusted under different working conditions. In this way, through the cooperation of the sliding mechanism and the fixture, the complex processing requirements of different wheel hubs can be met, thereby ensuring the efficient operation of the device and the improvement of processing quality.

[0033] In this embodiment, the design of the sliding mechanism constitutes a vital dynamic adjustment part in the clamp device, which is used to accurately control the movement position of the grinding and drilling mechanism to meet the needs of different working conditions. The core of the sliding mechanism includes a telescopic cylinder 6 installed above the mounting frame 2. The telescopic cylinder 6 not only provides a driving force in the up and down directions, but also realizes the dynamic adjustment of the sliding assembly through its flexible telescopic end. The telescopic end of the cylinder is fixedly connected to a sliding frame 7 that passes through the mounting frame 2. This design enables the sliding frame 7 to move smoothly along the guide rail device of the mounting frame 2, ensuring precise control in the up and down directions and avoiding error accumulation caused by external interference.

[0034] The guide frame 8 is slidably connected to the bottom of the sliding frame 7. The guide frame 8 plays an important guiding and bearing role in the entire sliding mechanism, ensuring the stability and high precision of the device during the longitudinal sliding process. The grinding and drilling mechanism is installed inside the guide frame 8 and can slide along the track inside the guide frame 8, thereby realizing the precise movement of the processing head between different positions. Through this multi-layer structure design, it is ensured that the position of the tool can be flexibly adjusted during the processing process to meet the processing requirements of different wheel hubs.

[0035] Screw rods 9 are installed along the length direction inside the sliding frame 7 and the guide frame 8, and the screw rods 9 provide further linear adjustment capabilities by rotating. The threaded connection between these screw rods 9 and the frame structure enables the device to achieve high-precision fine-tuning. Above the guide frame 8, a first slider is installed that fits tightly with the inner wall of the sliding frame 7. The slider is threadedly connected to the screw rods 9. When the screw rods 9 rotate, the first slider moves accordingly, thereby driving the position adjustment of the entire sliding frame 7. At the same time, a second slider is also provided above the grinding and drilling mechanism, which fits the bottom of the inner wall of the guide frame 8 and is fixed to the screw rods 9 by threaded connection. When the screw rods 9 rotate, the second slider drives the grinding and drilling mechanism to move smoothly along the inside of the guide frame 8.

[0036] The screw 9 device in this design is driven by a motor, which can realize the precise rotation of the screw 9, and through the coordination between multiple screws 9, the multi-dimensional adjustment of the grinding and drilling mechanism can be realized. The setting of this multi-screw 9 structure allows the device to be fine-tuned in different axial directions to cope with the complex processing requirements of different wheel hub sizes and shapes. The synchronous or independent adjustment of the motor-driven screw 9 can not only realize the rapid position conversion of each processing component, but also ensure the accuracy and stability of each processing point.

[0037] The design of this sliding mechanism greatly improves the flexibility and accuracy of the fixture, allowing it to be adjusted at any time according to the processing requirements of different wheel hubs. When processing different wheel hubs, the pressing depth and processing angle of the grinding disc 13 and the drilling mechanism can be accurately controlled by adjusting the position of the screw 9, ensuring consistency and efficiency during the processing.

[0038] In this embodiment, the grinding and drilling mechanism is the core processing component of the device, and the multi-process processing of the wheel hub is realized through the flexible combination of its structure and highly automated control. The mechanism is mainly composed of two side plates 10 fixed under the second slider. The two side plates 10 not only provide overall support, but also provide a reliable frame structure for the installation and rotation of other components. A mounting plate 11 is rotatably connected between the two side plates 10, and the mounting plate 11 can rotate freely around the connecting axis between the side plates 10, realizing the switching and adjustment between the grinding and drilling tools.

[0039] Servo motors 12 are installed above and below the mounting plate 11, respectively. These servo motors 12 are connected to the grinding disc 13 and the milling cutter 14 through their precise drive and control. The high-speed response capability of the servo motor 12 ensures the smooth progress of the grinding and drilling process. The upper servo motor 12 drives the grinding disc 13 for precision polishing of the wheel hub surface; while the lower servo motor 12 drives the milling cutter 14 for processing the valve holes and other key parts on the wheel hub. The grinding disc 13 and the milling cutter 14 can be flexibly switched according to the requirements of different processes, which improves the versatility and automation of the equipment.

[0040] In order to ensure the stability of the processing, a first self-locking motor 15 is installed on one side of the mounting plate 11. The output end of the self-locking motor passes between the side plate 10 and the mounting plate 11 and is fixedly connected to the mounting plate 11. The design of the self-locking motor ensures that after the mounting plate 11 is adjusted into place, its position will not be offset due to external force or equipment vibration, ensuring the consistency and reliability of processing accuracy. The self-locking motor also provides a high-torque locking capability, which allows the equipment to remain stable during high-speed operation and long-term processing, reducing the frequency of human intervention.

[0041] Through the automatic switching of the grinding disc 13 and the milling cutter 14, the mechanism can not only quickly respond to the needs of different processing tasks, but also reduce the waiting time between processes and improve the overall processing efficiency. This design greatly reduces the complexity of manual participation, making the processing process more intelligent and efficient. The operator only needs to set different process switching points through the program, and the servo motor 12 and the self-locking motor will automatically perform the corresponding switching and adjustment, without the need to manually change tools, reducing the occurrence of errors.

[0042] In this embodiment, the clamping mechanism in the device undertakes the core task of fixing and firmly positioning the wheel hub, ensuring the accuracy and stability during the processing. The design of the mechanism adopts a multi-layer structure to achieve flexible adjustment and efficient clamping. Its main structure includes a slide plate 16 slidably connected in the guide groove. The slide plate 16 can slide smoothly along the track of the guide groove, so that the clamping mechanism can be adjusted according to the different sizes and shapes of the wheel hub, meeting the processing requirements of various specifications.

[0043] A clamping block 17 is fixedly connected to the top of the slide plate 16. The design of the clamping block 17 conforms to the outer structure of the wheel hub and can fit closely to the surface of the wheel hub to ensure that no sliding or displacement occurs during the processing, thereby improving the stability of the clamping. The clamping block 17 is made of high-strength material to ensure durability and stability under high loads and meet the needs of long-term continuous operation. A positioning plate 18 is fixedly connected to the bottom of the slide plate 16. This structure forms a close connection between the slide plate 16 and other components, providing a basis for the coordinated operation of the entire device.

[0044] Below the clamping mechanism, the placement plate 4 is rotatably connected to the rotating plate 19. The design of the rotating plate 19 provides the device with the ability to adjust at multiple angles. The top of the rotating plate 19 is connected to the rod body 20 by means of a hinge. The hinge of these rod bodies 20 not only provides flexibility of movement, but also applies force to the rotating plate 19 during the adjustment process to achieve precise position adjustment. A linear cylinder 21 is installed below the rotating plate 19. The cylinder, as a driving component, can provide a stable thrust for adjusting the position of the rod body 20 and the rotating plate 19.

[0045] The design of the positioning structure further enhances the accuracy and stability of the device. Positioning frames 22 are respectively installed under the two opposite positioning plates 18, and positioning rods 23 are connected to both sides of the positioning frames 22. These positioning rods 23 are connected to the fisheye joints of the linear cylinder 21 by rotation. The fisheye structure allows flexible angle adjustment during movement, reducing errors caused by inertia or external forces. This design ensures that the device can maintain coordination and consistency between various components when running at high speed.

[0046] The linear cylinder 21 can be used to push the multiple rods 20 to rotate synchronously. During the articulation of the rods 20, a driving force is generated, which further pushes the rotating plate 19 to adjust its position. As the rotating plate 19 rotates, this force is transmitted to other rods 20, thereby achieving synchronous position adjustment of multiple slides 16 in the device. Through this transmission mechanism, the clamping mechanism can quickly adapt to the size and position requirements of different wheel hubs, thereby improving the processing efficiency.

[0047] The cross section of the slide plate 16 is designed to be an I-shaped structure, which not only enhances the anti-deformation ability of the slide plate 16, but also ensures that it can stably slide in the guide groove, avoiding the risk of the slide plate 16 falling off the guide groove due to uneven force. This design greatly improves the reliability of the device operation and ensures safety under long-term and high-load conditions.

[0048] In this embodiment, the design of the mounting frame 2 adopts a modular structural combination, which provides a solid foundation for the stability and versatility of the entire device. The mounting frame 2 is mainly composed of an upper plate, a lower plate and four columns 24. These components are fastened together by high-strength connections to achieve firm support for the overall structure. The connection method between the columns 24 ensures the vibration resistance of the device during operation and reduces displacement or structural loosening caused by equipment vibration or long-term operation. The columns 24 are fixedly connected between the upper plates to form a highly integrated frame structure, ensuring that stable support can be provided for other sub-devices during processing operations.

[0049] In order to enhance the strength and stability of the overall structure, each two adjacent columns 24 are reinforced by a fixing plate 25, which not only provides lateral support but also serves as an important position for connecting other components. The fixing plates 25 are also rotatably connected with circular plates 26, and the addition of the circular plates 26 enables the device to have multi-angle adjustment capabilities, and the position of the workpiece to be processed can be flexibly adjusted according to processing requirements.

[0050] The arc frames 27 are fixedly connected to both sides of each fixed plate 25. These arc frames 27 not only provide effective structural support for the circular plate 26, but also form a stable limiting structure, so that the circular plate 26 can rotate freely inside the arc frame 27 without loosening or offset. The design of the arc frame 27 ensures that the rotation path of the circular plate 26 will not deviate from the preset track, effectively preventing the circular plate 26 from moving randomly under high-load operation.

[0051] A limit plate 28 is installed below each two adjacent arc frames 27. The limit plate 28 plays a role of precise limit in the entire device, ensuring that the circular plate 26 will not exceed the predetermined angle range when rotating, thereby improving the safety and accuracy of the processing. A reduction motor 29 is also fixedly connected below the limit plate 28. The reduction motor 29 passes through the limit plate 28 through the output end and is fixedly connected to the circular plate 26. In this way, the rotation speed of the circular plate 26 can be accurately controlled by the reduction motor 29, and the circular plate 26 can also be ensured to rotate smoothly during the switching process between different processes.

[0052] The setting of the reduction motor 29 greatly improves the control accuracy of the device, making the rotation of the circular plate 26 smoother and more stable. The connection method of its output end is precisely designed to ensure that the transmission device between the circular plate 26 and the reduction motor 29 can remain stable for a long time during high-intensity work. During the processing of the valve hole, the rotation of the circular plate 26 allows the placement plate 4 to be adjusted to the optimal processing angle, which improves the flexibility and accuracy of the processing.

[0053] In addition, the device also drives the rotation of the circular plate 26 through the second self-locking motor. The design of the self-locking motor ensures that the circular plate 26 can be firmly locked after the position is adjusted, avoiding position deviation or error caused by external force interference.

[0054] In this embodiment, a plurality of support columns 30 are arranged between the circular plate 26 and the placement plate 4. The arrangement of the support columns 30 can enable the placement plate 4 to rotate simultaneously during the rotation of the circular plate 26.

[0055] When the wheel hub needs to be polished, the device is designed so that the clamping discs can be placed in a parallel manner, which means that the wheel hub will be fixed horizontally in the processing position. This parallel placement not only helps the polishing disc 13 to contact the wheel hub surface more evenly, but also reduces uneven wear caused by gravity and improves polishing accuracy. At the same time, this layout also facilitates multi-angle polishing operations, such as flattening at different radial positions of the wheel hub to ensure that the entire wheel hub surface reaches the required smoothness and consistency.

[0056] When processing the valve hole, the clamping plate is adjusted to be placed vertically so that the wheel hub is fixed vertically in the processing equipment. This vertical layout enables the milling cutter 14 to press vertically down on the workpiece surface when processing the valve hole, thereby improving the accuracy of hole processing and preventing deviation or tilting. The vertical placement method can also better release cutting debris, avoid the accumulation of debris in the hole during processing, and ensure the cleanliness and smoothness of the processing area. In addition, this design can ensure that each valve hole is located in the best position during multi-hole processing, ensuring the integrity and consistency of the internal structure of the wheel hub.

[0057] The switching between parallel and vertical positions of the clamping disc is achieved by a second self-locking motor. The drive of the self-locking motor ensures that the clamping disc can be quickly and stably locked after being adjusted to the target position, preventing accidental displacement caused by external forces or vibrations during processing. The locking ability of the self-locking motor is particularly critical, especially during long-term continuous processing, to ensure that the clamping disc remains at the correct working angle, avoiding frequent adjustments that affect production efficiency.

[0058] In addition, the design of the second self-locking motor also supports intelligent angle adjustment. The operator can set the required angle for grinding and drilling through the program, and the self-locking motor will automatically switch according to the instructions.

[0059] The present invention is not limited to the above-mentioned embodiments. Anyone should be aware that any structural changes made under the enlightenment of the present invention, and any technical solutions that are the same or similar to the present invention, fall within the protection scope of the present invention. The technology, shape, and structural parts not described in detail in the present invention are all well-known technologies.

Claims

1. A valve hole dual-effect flap fixture, characterized in that: include: A cabinet (1), wherein a mounting frame (2) is fixedly connected to the top of the cabinet (1), a sliding mechanism is arranged below the inner wall of the mounting frame (2), a grinding and drilling mechanism is connected below the sliding mechanism, a clamp is rotatably connected in the space of the mounting frame (2), the clamp comprises a placement plate (4), a plurality of arc blocks (5) are fixedly connected to the top of the placement plate (4) in an annular arrangement, the plurality of arc blocks (5) are combined into an annular structure, more than three clamping mechanisms are slidably connected to the top of the placement plate (4), and a space for subsequent clamping mechanisms to slide is reserved between every two adjacent arc blocks (5).

2. The double-effect flap fixture for valve holes according to claim 1, characterized in that: The sliding mechanism comprises a telescopic cylinder (6) fixedly connected to the top of the mounting frame (2); the telescopic end of the telescopic cylinder (6) is fixedly connected to a sliding frame (7) passing through the mounting frame (2); the bottom of the sliding frame (7) is slidably connected to a guide frame (8); and the grinding and drilling mechanism slides inside the guide frame (8).

3. The double-effect flap fixture for valve holes according to claim 1, characterized in that: A screw rod (9) is rotatably connected in the length direction of the inside of the sliding frame (7) and the guide frame (8); a first sliding block is connected above the guide frame (8) and is attached to the bottom of the inner wall of the sliding frame (7) and is threadedly connected to the screw rod (9); and a second sliding block is connected above the grinding and drilling mechanism and is attached to the bottom of the inner wall of the guide frame (8) and is threadedly connected to the screw rod (9).

4. The double-effect flap fixture for valve holes according to claim 1, characterized in that: The grinding and drilling mechanism comprises two side plates (10) fixed below the second sliding block, a mounting plate (11) is rotatably connected between the two side plates (10), a servo motor (12) is fixedly connected above and below the mounting plate (11), and the output ends of the two servo motors (12) are respectively connected to a grinding disc (13) and a milling cutter (14).

5. The double-effect flap fixture for valve holes according to claim 1, characterized in that: A first self-locking motor (15) is fixedly connected to one side of the mounting plate (11), and an output end of the first self-locking motor (15) passes through the side plate (10) and is fixedly connected to the mounting plate (11).

6. The double-effect flap fixture for valve holes according to claim 1, characterized in that: The clamping mechanism comprises a slide plate (16) slidably connected in the guide groove, a clamping block (17) for clamping the wheel hub is fixedly connected above the slide plate (16), a positioning plate (18) is fixedly connected below the slide plate (16), a rotating plate (19) is rotatably connected below the placement plate (4), and a rod body (20) hinged to the positioning plate (18) is fixedly connected above the rotating plate (19).

7. The double-effect flap fixture for valve holes according to claim 1, characterized in that: A linear cylinder (21) is arranged below the rotating plate (19), wherein positioning frames (22) are connected below the two relatively positioning plates (18), positioning rods (23) are connected to both sides of the positioning frames (22), and fish eyes are connected to both ends of the linear cylinder (21), and the fish eyes and the positioning rods (23) are rotatably connected.

8. The valve hole dual-effect flap fixture according to claim 1, characterized in that: The mounting frame (2) is composed of an upper plate and four upright posts (24) thereof. The upright posts (24) are fixedly connected between the upper plates. A fixing plate (25) is fixedly connected between every two adjacent upright posts (24). A circular plate (26) is rotatably connected between the two fixing plates (25).

9. The double-effect flap fixture for valve holes according to claim 1, characterized in that: Both sides of the fixed plate (25) are fixedly connected with an arc frame (27), the circular plate (26) is rotatably connected inside the arc frame (27), a limit plate (28) is arranged below every two adjacent arc plates, a reduction motor (29) is fixedly connected below the limit plate (28), and the output end of the reduction motor (29) passes through the limit plate (28) and is fixedly connected between the circular plate (26).

10. The double-effect flap fixture for valve holes according to claim 1, characterized in that: A plurality of support columns (30) are arranged between the circular plate (26) and the placement plate (4).

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