Turnover tool for AGV (Automatic Guided Vehicle)

By configuring guide wheels and gear supports on the support beam of the AGV, combined with geared motor control and guide wheel limit, the stability problem of the AGV flipping structure during large-angle flipping is solved, realizing the safety and flexibility of large-angle flipping.

CN223574561UActive Publication Date: 2025-11-21HUNAN ENAIJI ROBOT CO LTD
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Patent Information

Application Number
CN202522155896.7
Authority / Receiving Office
CN · China
Patent Type
Utility models(China)
Current Assignee / Owner
Filing Date
2025-10-13
Publication Date
2025-11-21
Estimated Expiration
2035-10-13

AI Technical Summary

Technical Problem

The existing AGV's flipping structure shifts its center of gravity when flipping at large angles, causing uneven force on the mechanism, which may lead to damage or tilting and overturning.

Method used

The system uses a support beam to connect the support wheels at both ends, and is equipped with guide wheels and gear supports. Combined with a geared motor to control the flipping, it ensures that the center of gravity is always in the middle. At the same time, the groove limit of the guide wheel and the baffle restrict the material, thus achieving stability for large-angle flipping.

Benefits of technology

It achieves stability during large-angle flipping, avoiding mechanical damage and overturning caused by center of gravity shift, and ensuring the safety and flexibility of material transportation.

✦ Generated by Eureka AI based on patent content.

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Abstract

The utility model relates to the technical field of overturning tools, in particular to an overturning tool for an AGV, which comprises two supporting beams, a first supporting wheel and a second supporting wheel are respectively mounted at two ends of the two supporting beams, a first arc-shaped frame is mounted on the outer side of the first supporting wheel, a first base is fixed at the bottom of the first arc-shaped frame, and a second base is fixed at the bottom of the second arc-shaped frame. The top of the first arc-shaped frame and the interior of the first base are both sleeved with guide wheels, the first supporting wheel and the guide wheels are supported in a rolling mode, a second arc-shaped frame is installed on the outer side of the second supporting wheel, a second base is fixed to the bottom of the second arc-shaped frame, the top of the second arc-shaped frame and the interior of the second base are both sleeved with gears, and a gear motor is installed below the second supporting wheel. The supporting wheels at the two ends are connected through the supporting beams, meanwhile, the supporting wheels at the two ends are provided with supporting of the guide wheels and the gears, the structure is stabilized, the gravity center is always located in the middle in the overturning process, stress is greatly balanced, large-angle overturning can be conducted, and meanwhile overturning stability is guaranteed.
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Description

Technical Field

[0001] This utility model relates to the field of flipping tooling technology, specifically to a flipping tooling for AGVs. Background Technology

[0002] AGV, or Automated Guided Vehicle, is an unmanned transport device equipped with an automatic guidance system that can automatically travel along a set route or tow a cargo platform to a designated location to realize automatic loading, unloading, and handling of materials.

[0003] The patent website has published an AGV with a carrying and flipping function, patent number CN 214138759 U. This AGV achieves the carrying and flipping function by controlling the drive motor to make the pulley drive the synchronous belt to rotate, and the synchronous belt drives the flipping component to rotate. However, its flipping structure is not stable enough. When flipping at a large angle, if the center of gravity shifts outside the support position, it may cause damage due to uneven force on the mechanism, or even cause the AGV to tilt and overturn. Utility Model Content

[0004] To achieve the above objectives, this utility model specifically adopts the following technical solution:

[0005] A tilting fixture for AGVs includes two support beams. Support wheel one and support wheel two are mounted at each end of the two support beams. An arc-shaped frame one is mounted on the outer side of support wheel one, and a base one is fixed to the bottom of arc-shaped frame one. Guide wheels are fitted onto the top of arc-shaped frame one and inside the base one, providing rolling support between support wheel one and the guide wheels. An arc-shaped frame two is mounted on the outer side of support wheel two, and a base two is fixed to the bottom of arc-shaped frame two. Gears are fitted onto the top of arc-shaped frame two and inside the base two. A reduction motor is mounted below support wheel two, and an external gear sleeve is mounted on the output end of the reduction motor. Equally spaced toothed grooves are formed on the outer side of support wheel two, with the external gear sleeve meshing with the toothed grooves, and the gear meshing with the toothed grooves.

[0006] Furthermore, the guide wheel has a pre-set groove in the middle, and the outer side of the support wheel abuts against the groove to form rolling support.

[0007] Furthermore, a support plate is installed on the top of the support beam.

[0008] Furthermore, a bidirectional lead screw is installed below the support beam, and bearing seats are installed at the bottom of the support beam at both ends of the bidirectional lead screw. The two ends of the bidirectional lead screw are sleeved and supported by the bearing seats. A spacer is installed at the bottom of the support beam in the middle of the bidirectional lead screw, and the bidirectional lead screw passes through the spacer. A linear lead screw motor is installed on the thread at both ends of the bidirectional lead screw. A fixing plate is installed on the side of the linear lead screw motor. The fixing plate is vertically arranged, and a baffle is fixed on the top of the fixing plate.

[0009] Furthermore, a rubber block is installed on the side of the baffle facing the end of the opposing support beam, and a support rod is fixed to the back of the baffle and the top of the fixing plate.

[0010] Furthermore, a pressure plate is installed on the fixing plate at the top of the support beam, and the pressure plate is close to the top surface of the support beam.

[0011] Furthermore, both the first and second support wheels are configured as two semicircles, and the two ends of the first and second support wheels are respectively equipped with a first fixed seat and a second fixed seat. A sleeve passes through the first fixed seat and the second fixed seat, and the outer side of the sleeve is configured as a polygon.

[0012] Furthermore, on the two support wheels 1 and 2, hinge seats 1 and 2 are respectively installed on the two sides away from fixed seats 1 and 2, and a pin passes through the hinge seats 1 and 2.

[0013] The beneficial effects of this utility model are as follows:

[0014] 1. This utility model connects the support wheels at both ends through a support beam, and at the same time, it provides the support wheels at both ends with guide wheels and gears for support, which stabilizes the structure. At the same time, when flipping, the center of gravity is always in the middle, the force is greatly balanced, and large-angle flipping is possible while ensuring the stability of the flipping.

[0015] 2. In this utility model, a groove is provided on the guide wheel so that the support wheel is located in the groove for rolling support, which forms a limiting effect and can prevent the support wheel from separating from the guide wheel due to radial movement.

[0016] 3. In this utility model, both support wheels are formed by assembling two semicircles. After assembly, the volume increases, but the flipping angle is larger. When not assembled, the volume is controlled, which facilitates flexible adjustment according to the needs of the site.

[0017] 4. This utility model is equipped with baffles, which can be controlled by a linear screw motor to abut against both ends of the material, restricting the material and preventing it from sliding on the pallet, thereby ensuring the stability of the material during transportation. Attached Figure Description

[0018] Figure 1 This is a perspective view of the present invention;

[0019] Figure 2 This is a schematic diagram of the arrangement of the support wheel one in this utility model;

[0020] Figure 3 This is a schematic diagram of the arrangement of the second support wheel in this utility model;

[0021] Figure 4 This is a perspective view of the guide wheel in this utility model;

[0022] Figure 5 This is a schematic diagram of the sleeve arrangement in this utility model;

[0023] Figure 6 This is a schematic diagram of the pin arrangement in this utility model;

[0024] Figure 7 This is a schematic diagram of the tray arrangement in this utility model;

[0025] Figure 8 This is a schematic diagram of the baffle arrangement in this utility model.

[0026] Reference numerals in the attached diagram: 1. Support beam; 2. Support wheel one; 3. Arc frame one; 4. Base one; 5. Guide wheel; 6. Groove; 7. Support wheel two; 8. Arc frame two; 9. Base two; 10. Gear; 11. Gear motor; 12. External gear sleeve; 13. Gear groove; 14. Support plate; 15. Two-way lead screw; 16. Shaft seat; 17. Spacer; 18. Linear lead screw motor; 19. Fixing plate; 20. Baffle; 21. Rubber block; 22. Support rod; 23. Pressure plate; 24. Fixing seat one; 25. Fixing seat two; 26. Insert sleeve; 27. Hinge seat one; 28. Hinge seat two; 29. ​​Pin. Detailed Implementation

[0027] To make the objectives, technical solutions, and advantages of the embodiments of this utility model clearer, the technical solutions of the embodiments of this utility model will be clearly and completely described below with reference to the accompanying drawings.

[0028] This application provides a flipping fixture for AGVs and offers the following technical solution, which will be discussed below. Figures 1-8 Please provide a detailed explanation:

[0029] A flipping fixture for AGVs, such as Figure 1-3 As shown, it includes two support beams 1. Support wheels 1 and 2 are respectively installed at both ends of the two support beams 1 by bolts. An arc frame 3 is installed on the outside of the support wheel 1. A base 4 is welded and fixed to the bottom of the arc frame 1. Guide wheels 5 are sleeved on the top of the arc frame 1 and inside the base 1. The support wheel 1 and the guide wheel 5 provide rolling support.

[0030] An arc-shaped frame 8 is installed on the outer side of the support wheel 7. A base 9 is welded and fixed to the bottom of the arc-shaped frame 8. Gears 10 are sleeved on the top of the arc-shaped frame 8 and inside the base 9. A reduction motor 11 is installed below the support wheel 7. An outer gear sleeve 12 is installed on the output end of the reduction motor 11 by bolts. The outer side of the support wheel 7 is provided with equally spaced tooth grooves 13. The outer gear sleeve 12 meshes with the tooth grooves 13, and the gear 10 meshes with the tooth grooves 13.

[0031] During transportation, the material is placed on the support beam 1 for carrying. When flipping, the reduction motor 11 is controlled to rotate forward or flip according to the required flipping direction. When the reduction motor 11 rotates forward, the material is flipped to the right. When the reduction motor 11 flips, the material is flipped to the left. When the reduction motor 11 is working, its output end drives the outer gear sleeve 12 to rotate. Since the outer gear sleeve 12 meshes with the tooth groove 13 of the second support wheel 7, it will drive the second support wheel 7 to rotate. The second support wheel 7 is connected to the first support wheel 2 by the support beam 1. The rotation of the second support wheel 7 will drive the first support wheel 2 to rotate, which will eventually cause the support beam 1 to flip. At this time, the material placed on the support beam 1 can be flipped to the required direction for unloading.

[0032] Support wheel 1 2 is supported by two sets of guide wheels 5 on both sides, and support wheel 2 7 is supported by two sets of gears 10 on both sides. The outer gear sleeve 12 is located below support wheel 2 7. The support beam 1 connects support wheel 1 2 and support wheel 2 7 at both ends, forming a stable force-bearing system. The support beam 1 is first supported by support wheel 1 2 and support wheel 2 7 at both ends, and can be rotated in a controllable manner without moving in other directions. Both support wheel 1 2 and support wheel 2 7 are supported. When they rotate, they can rotate and be supported by their respective guide wheels 5 and gears 10. The whole structure is more stable, and the center of gravity is always in the middle. When rotating at a large angle, there will be no damage to the mechanism due to uneven force caused by the shift of the center of gravity, or the AGV overturning.

[0033] like Figure 4 As shown, the guide wheel 5 has a groove 6 pre-set in the middle, and the outer side of the support wheel 2 abuts against the groove 6 to form rolling support.

[0034] The groove 6 has a certain limiting effect. When the support wheel 2 rotates, it restricts the support wheel 2 to rotate only within the groove 6, thereby providing stable support for the entire tooling.

[0035] like Figure 1 and Figure 7 As shown, a support plate 14 is bolted to the top of the support beam 1.

[0036] The pallet 14 is used to support materials. Depending on the length of the materials, the pallet 14 can be adjusted to support the four corners of the materials to ensure flexibility of use.

[0037] like Figure 7 and Figure 8As shown, a bidirectional lead screw 15 is installed below the support beam 1. The bottom of the support beam 1 at both ends of the bidirectional lead screw 15 is bolted with a bearing seat 16. The two ends of the bidirectional lead screw 15 are sleeved and supported by the bearing seat 16. The bottom of the support beam 1 in the middle of the bidirectional lead screw 15 is bolted with a spacer 17. The bidirectional lead screw 15 passes through the spacer 17. A linear lead screw motor 18 is installed on the thread between the spacer 17 and both ends of the bidirectional lead screw 15. A fixing plate 19 is bolted to the side of the linear lead screw motor 18. The fixing plate 19 is vertically arranged. A baffle 20 is integrally formed and fixed to the top of the fixing plate 19.

[0038] When material is placed on pallet 14, the two linear screw motors 18 on the bidirectional screw 15 are controlled to move along the bidirectional screw 15, continuously moving from the initial positions at both ends of the bidirectional screw 15 towards the middle. As the linear screw motors 18 continue to move, the baffles 20 eventually reach both ends of the material placed on pallet 14. When both baffles 20 on the two linear screw motors 18 reach the material, the load on the linear screw motors 18 increases significantly, indicating that the baffles 20 are in place, and the linear screw motors 18 stop. During transportation, pallet 14 supports the material from the bottom, while the baffles 20 reach both ends of the material, preventing displacement and avoiding slippage on pallet 14 during transportation, thus ensuring the stability of the material during transportation.

[0039] like Figure 8 As shown, a rubber block 21 is bolted to the side of the baffle 20 facing the end of the opposing support beam 1, and a support rod 22 is welded and fixed to the back of the baffle 20 and the top of the fixing plate 19.

[0040] When the baffle 20 approaches the material on the pallet 14, the rubber block 21 presses against the surface of the material. The rubber material has certain flexibility, low hardness, and high friction. When it comes into contact with the material surface, it can obtain better frictional resistance, thereby improving the limiting effect. At the same time, the low hardness can avoid scratching the material surface.

[0041] like Figure 7 and Figure 8 As shown, a pressure plate 23 is bolted to the fixing plate 19 at the top of the support beam 1, and the pressure plate 23 is close to the top surface of the support beam 1.

[0042] When the linear screw motor 18 drives the fixed plate 19 to move, the pressure plate 23 is driven to move synchronously. The pressure plate 23 is always close to the top surface of the support beam 1 and forms an upper and lower relationship with the linear screw motor 18. When the linear screw motor 18 is working, if it rotates, the pressure plate 23 can abut against the surface of the support beam 1 to prevent further rotation, thereby ensuring the stable linear movement of the linear screw motor 18.

[0043] like Figure 5As shown, both support wheel 1 2 and support wheel 2 7 are set as two semicircles. The two ends of support wheel 1 2 and support wheel 2 7 are respectively installed with fixing seat 1 24 and fixing seat 2 25 by bolts. A plug sleeve 26 passes through the fixing seat 1 24 and fixing seat 2 25. The outer side of the plug sleeve 26 is set as a polygonal structure.

[0044] The maximum rotation angle of half support wheel 1 2 and support wheel 2 7 is only 40°. When a larger rotation angle is required, the two semicircular support wheels 1 2 and support wheel 2 7 can be assembled. In theory, a 360° rotation can be achieved. However, installing two of them will increase the volume. The specific choice needs to be made based on the specific situation.

[0045] like Figure 6 As shown, on the two support wheels 1 2 and support wheel 2 7, the two ends of the side away from the fixed seat 1 24 and fixed seat 2 25 are respectively bolted to the hinge seat 1 27 and hinge seat 2 28, and a pin 29 passes through the hinge seat 1 27 and hinge seat 2 28.

[0046] The two support wheels 1 and 2 and support wheel 2 are hinged by pin 29. When only one is needed, the insert 26 can be removed to rotate the upper part of support wheel 1 and support wheel 2 and 7 and partially fold it together with the lower part of support wheel 1 and support wheel 2 and 7, thereby reducing the volume and not requiring complete disassembly, which is convenient for subsequent use.

[0047] The above description of the disclosed embodiments enables those skilled in the art to make or use the present invention. Various modifications to these embodiments will be readily apparent to those skilled in the art, and the general principles defined herein may be implemented in other embodiments without departing from the spirit or scope of the present invention. Therefore, the present invention is not to be limited to the embodiments shown herein, but is to be accorded the widest scope consistent with the principles and novel features disclosed herein.

Claims

1. A turnover tool for AGV, comprising two support beams (1), characterized in that, Two ends of the two supporting beams (1) are respectively provided with supporting wheels one (2) and supporting wheels two (7), the outer side of the supporting wheels one (2) is provided with an arc-shaped frame one (3), the bottom of the arc-shaped frame one (3) is fixedly provided with a base one (4), the top of the arc-shaped frame one (3) and the inside of the base one (4) are both sleeved with a guide wheel (5), the supporting wheels one (2) and the guide wheel (5) are rolling support, the outer side of the supporting wheels two (7) is provided with an arc-shaped frame two (8), the bottom of the arc-shaped frame two (8) is fixedly provided with a base two (9), the top of the arc-shaped frame two (8) and the inside of the base two (9) are both sleeved with a gear (10), the lower side of the supporting wheels two (7) is provided with a speed reducer motor (11), the output end of the speed reducer motor (11) is provided with an external tooth sleeve (12), the outer side of the supporting wheels two (7) is provided with equidistant tooth grooves (13), the external tooth sleeve (12) and the tooth grooves (13) are mutually engaged, the gear (10) and the tooth grooves (13) are mutually engaged; the middle of the guide wheel (5) is provided with a groove (6), the outer side of the supporting wheels one (2) is located in the groove (6) to form rolling support, the top of the supporting beam (1) is provided with a supporting plate (14), the lower side of the supporting beam (1) is provided with a bidirectional screw rod (15), the bottom of the supporting beam (1) at both ends of the bidirectional screw rod (15) is provided with an axle seat (16), both ends of the bidirectional screw rod (15) and the axle seat (16) are sleeved and supported, the bottom of the supporting beam (1) in the middle of the bidirectional screw rod (15) is provided with a partition seat (17), the bidirectional screw rod (15) penetrates through the partition seat (17), the threads at both ends of the bidirectional screw rod (15) are both provided with a linear screw rod motor (18), the side of the linear screw rod motor (18) is provided with a fixed plate (19), the fixed plate (19) is vertically arranged, the top of the fixed plate (19) is fixedly provided with a baffle (20).

2. The turnover tooling for AGV according to claim 1, characterized in that, The side of the baffle (20) towards the end of the opposite supporting beam (1) is provided with a rubber block (21), the back of the baffle (20) and the top of the fixed plate (19) are fixedly provided with a supporting rod (22).

3. The turnover tooling for AGV according to claim 2, characterized in that, The fixed plate (19) on the top of the supporting beam (1) is provided with a pressing plate (23), the top surface of the pressing plate (23) is close to the supporting beam (1).

4. The turnover tooling for AGV according to claim 3, characterized in that, The supporting wheels one (2) and the supporting wheels two (7) are both provided with two semicircles, the two ends of the two supporting wheels one (2) and the supporting wheels two (7) are respectively provided with fixed seats one (24) and fixed seats two (25), the fixed seats one (24) and the fixed seats two (25) penetrate through an insertion sleeve (26), the outer side of the insertion sleeve (26) is provided with a polygonal structure.

5. The turnover tooling for AGV according to claim 4, characterized in that, The side of the two supporting wheels one (2) and the supporting wheels two (7) away from the fixed seats one (24) and the fixed seats two (25) is respectively provided with a hinge seat one (27) and a hinge seat two (28), the hinge seat one (27) and the hinge seat two (28) penetrate through a pin (29).

Citation Information

Patent Citations

  • AGV (Automatic Guided Vehicle) with carrying and overturning functions

    CN214138759U