Transfer device for AGV (Automatic Guided Vehicle) and material transfer trolley

Abstract

The invention relates to the technical field of storage carrying equipment, and provides a transferring device for an AGV and a material transfer trolley, the transferring device for the AGV comprises an AGV body, a lifting seat, a driving part, a fork, a baffle and an adjusting assembly, the lifting seat is arranged on the AGV body, a guide rail is arranged on the AGV body, and the lifting seat is arranged on the guide rail in an up-down moving mode; the driving piece is connected with the lifting seat and is used for controlling the lifting seat to move; the two pallet forks are horizontally arranged on the lifting seat in parallel, and the pallet forks are used for bearing materials; the two pallet forks are located in the same horizontal plane and are symmetrically arranged with the central axis of the lifting base as the axis. The baffles are arranged on one sides of the long edges of the two pallet forks, and the two baffles are used for blocking materials on the pallet forks; the adjusting assembly is connected with the two pallet forks at the same time and used for adjusting the horizontal distance between the two pallet forks. The transferring device has the effect that the transferring device can conveniently take and place the materials.

Description

Technical Field

[0001] This application relates to the field of warehouse handling equipment technology, and in particular to a transfer device for AGVs and a material transfer vehicle. Background Technology

[0002] With the rapid development of the warehousing and logistics industry, the traditional method of manually transferring and transporting materials can no longer meet the needs of modern industry, and factory automated material handling systems are receiving increasing attention both domestically and internationally. In factory automated logistics systems, Automated Guided Vehicles (AGVs) are an important component, often referred to as AGV carts, used to replace or supplement manual labor in the picking, placing, and transporting of goods.

[0003] AGVs (Automated Guided Vehicles) are transport vehicles equipped with electromagnetic or optical automatic navigation devices, capable of traveling along predetermined navigation paths, and possessing safety protection and various transfer functions. In industrial applications, these driverless transport vehicles are powered by rechargeable batteries. Their movement and behavior are typically controlled by a computer, and under program control, AGVs can automatically transfer materials along designated paths from warehouse shelves to conveyor lines, helping to improve the automation capabilities of production lines.

[0004] However, although the docking and transfer mechanism in the structural design of AGV is mainly used to pick up and put down materials from storage racks and conveyors, the existing docking and transfer mechanism has certain problems. Since the working height of the docking and transfer mechanism is related to the height of the storage racks and conveyors, once the height of the storage racks or conveyors changes, the docking and transfer mechanism needs to be redesigned. In other words, the existing docking and transfer mechanism cannot meet the needs of multiple heights, has poor versatility, and seriously affects the application and promotion of AGV. Therefore, it needs to be improved. Summary of the Invention

[0005] To facilitate the loading and unloading of materials by the transfer device and improve its applicability, this application provides a transfer device for AGVs.

[0006] Firstly, the AGV transfer device provided in this application adopts the following technical solution: An AGV transfer device includes an AGV body, a lifting seat, a drive unit, forks, baffles, and an adjustment assembly. The lifting seat is mounted on the AGV body, and a guide rail is provided on the AGV body. The lifting seat moves up and down on the guide rail. The drive unit is connected to the lifting seat and is used to control the movement of the lifting seat. The forks are horizontally mounted on the lifting seat, and two forks are arranged in parallel. The forks are used to carry materials. The two forks are in the same horizontal plane and are symmetrically arranged along the central axis of the lifting seat. Each of the two forks has a baffle on one of its long sides, and the two baffles are used to separate the materials on the forks. The adjustment component is located on the lifting seat and is connected to both forks. The adjustment component is used to adjust the horizontal distance between the two forks.

[0007] By adopting the above technical solution, when materials need to be transferred, the AGV is first moved to the designated location using program control. Then, the lifting platform is moved vertically using the drive mechanism, adjusting the vertical distance between the lifting platform and the ground so that the forks can smoothly approach the material. Next, workers move the rectangular material from the storage rack onto the two forks, which support the material. Simultaneously, two baffles restrict and limit the material's movement from both sides, preventing it from falling due to bumps during transport.

[0008] In addition, materials of different widths may be encountered during the production process. At this time, the horizontal distance between the two forks can be adjusted using the adjustment component to adapt to the size of the materials, making it convenient to carry and transfer materials of different specifications, thus improving the practicality of production.

[0009] Preferably, the adjustment assembly includes a bidirectional lead screw, a servo motor, a first slider, and a second slider. The bidirectional lead screw is horizontally positioned and rotatably connected to the lifting base. The servo motor is connected to the bidirectional lead screw and is used to control the rotation of the bidirectional lead screw. The first slider is slidably connected to the forward thread of the bidirectional lead screw, and the second slider is slidably connected to the reverse thread of the bidirectional lead screw. The two forks are respectively connected to the first slider and the second slider. By adopting the above technical solution, during adjustment, the servo motor is first run, which drives the bidirectional lead screw to rotate. The rotation of the bidirectional lead screw can be converted into linear motion of the first slider and the second slider, so that the first slider and the second slider move closer to each other or further apart, thereby changing the horizontal distance between the two forks.

[0010] Preferably, the lifting seat is provided with a sliding groove, which is used to guide and limit the first slider and the second slider.

[0011] By adopting the above technical solution, the slide can guide and limit the movement of the first and second sliders, thereby improving the smoothness of the movement of the first and second sliders.

[0012] Preferably, it also includes an anti-detachment component, which is disposed on the fork and is used to prevent material from falling from the end of the fork; The anti-detachment component includes a movable rod, a wedge block, a pull rope, and a pressure plate. The forks are provided with a limit groove, and the movable rod is raised and lowered within the limit groove. The fork has a cavity that communicates with the limiting groove. A wedge block is slidably connected to the cavity, and the moving direction of the wedge block is parallel to the length direction of the fork. The lower end of the moving rod abuts against the wedge surface of the wedge block and is used to push the wedge block to move horizontally. A first compression spring is connected to the cavity and is connected to the wedge block to control the wedge block to return to its original position. The pressure plate is rotatably connected to the end of the fork away from the lifting seat via a torsion spring. The pressure plate is used to restrict the material from falling off the fork. The two ends of the pull rope are connected to the pressure plate and the wedge block, respectively. After the material is placed on the two forks, the moving rod moves vertically downward under the weight of the material. The moving rod drives the wedge block to move horizontally. The pull rope pulls the pressure plate to flip, and the pressure plate abuts against the material on the fork.

[0013] By adopting the above technical solution, when the worker places the material on the two forks from top to bottom, the moving rod moves vertically downward under the force of the material's gravity. The lower end of the moving rod abuts against the wedge-shaped surface of the wedge block, causing the wedge block to move horizontally towards the lifting seat. The wedge block drives the pull rope to move synchronously, allowing the pull rope to pull the pressure plate to flip. The upper side of the pressure plate is higher than the support surface of the forks, and the pressure plate abuts against one side of the material, thus limiting the material's movement. In this way, the material is simultaneously blocked by the pressure plate and the baffle, making it less likely to fall off the forks during transportation and improving transportation stability. After the material is removed from the two forks, the elastic restoring force of the first compression spring controls the wedge block to return to its original position, and the wedge block can also lift the moving rod; while the pull rope loses its tension on the pressure plate, the pressure plate can also return to its original position under the action of the torsion spring.

[0014] Preferably, the lower end of the moving rod is connected to a universal ball bearing, and a groove is formed on the wedge-shaped surface of the wedge block, and the universal ball bearing moves along the groove.

[0015] By adopting the above technical solution, when the moving rod applies downward pressure to the wedge block, the roller will move along the groove, and the ball and groove cooperate with each other so that the moving rod can better control the horizontal movement of the wedge block.

[0016] Preferably, it further includes a drive chain and a counterweight. The drive chain is rotatably connected to the AGV body via a sprocket. The lifting seat is disposed on the drive chain, and the counterweight is also disposed on the drive chain. When the lifting seat is at the lower end of the AGV body, the counterweight is located at the upper end of the AGV body. The driving component is a rotary motor, and the output shaft of the rotary motor is connected to the sprocket and is used to drive the sprocket to rotate.

[0017] By adopting the above technical solution, the rotary motor drives the sprocket to rotate, which in turn drives the transmission chain to rotate, realizing the lifting action of the lifting platform and the up-and-down movement of the counterweight. When material is placed on the two forks, the weight on the side of the AGV body closest to the material increases, especially when the lifting platform is raised higher. This raises the center of gravity of the entire transfer device, potentially causing it to tip over. The counterweight is used to balance the center of gravity of the entire transfer device. As the lifting platform rises higher, the counterweight is closer to the bottom of the AGV body, thus balancing the overall weight and preventing tipping.

[0018] Preferably, the support surface of the forks is provided with an anti-slip layer, and the upper end surface of the moving rod is provided with anti-slip texture.

[0019] By adopting the above technical solution, the anti-slip layer can increase the static friction between the forks and the material. When the material is pressed on the upper end of the moving rod, the anti-slip texture can increase the static friction between the moving rod and the material, thereby improving the stability of the material on the forks.

[0020] Preferably, it further includes a second compression spring. The moving rod is T-shaped and includes a horizontal part and a vertical part connected to each other. The vertical part is disposed in the limiting groove, and the horizontal part is located above the vertical part. The fork is provided with a mounting groove, and the second compression spring is disposed in the mounting groove. The two ends of the second compression spring are respectively connected to the horizontal part and the fork. The second compression spring is used to control the moving rod to return to its original position, and the horizontal part is used for placing materials.

[0021] By adopting the above technical solution, when the material is pressed onto the horizontal part, the horizontal and vertical parts move downwards together, at which time the horizontal part will compress the second compression spring. At the same time, the vertical part will move downwards within the limiting groove and push the wedge block to move horizontally. When the pressure of the material on the moving rod is removed, the second compression spring can drive the moving rod to return to its original position.

[0022] Secondly, this application also provides a material transfer vehicle, which includes a transfer device for an AGV with all the above-described structures.

[0023] In summary, this application includes at least one of the following beneficial technical effects: (1) By setting up a lifting seat and a drive unit, the drive unit can drive the lifting seat to a suitable height position, thereby adapting to warehouse racks of different heights, so that the materials on the racks can be smoothly transferred to the two forks for transfer, thus improving production flexibility.

[0024] (2) By setting up adjustment components, materials of different widths and specifications will be encountered during the production process. At this time, the adjustment components can be used to adjust the horizontal distance between the two forks to adapt to the size of the materials and facilitate the carrying and transfer of materials of different specifications.

[0025] (3) By setting up an anti-detachment component, the material's own gravity is used to drive the anti-detachment component, so that the pressure plate can block the fork at the end away from the lifting seat, thereby achieving the blocking and improving the stability of the material on the fork. Attached Figure Description

[0026] Figure 1 This is a schematic diagram of the transfer device in one embodiment of this application; Figure 2 This is a partial structural schematic diagram of the transfer device in one embodiment of this application; Figure 3 This is a cross-sectional schematic diagram of the forks in another embodiment of this application; Figure 4 This is an exploded schematic diagram of the first fork and the second fork in another embodiment of this application.

[0027] Reference numerals: 1. AGV body; 2. Lifting seat; 3. Drive unit; 4. Fork; 41. First fork carriage; 42. Second fork carriage; 5. Baffle; 6. Adjustment component; 61. Two-way lead screw; 62. Servo motor; 63. First slider; 64. Second slider; 7. Sprocket; 8. Chain; 9. Counterweight; 12. Anti-detachment component; 121. Moving rod; 1211. Horizontal part; 1212. Vertical part; 122. Wedge block; 123. Pull rope; 124. Pressure plate; 13. Limiting groove; 14. Cavity; 15. Mounting groove; 16. First compression spring; 17. Second compression spring; 18. Universal ball bearing; 19. Roller groove; 20. Guide rail; 21. Slide groove; 22. Rope threading hole; 23. Insertion post; 24. Insertion hole. Detailed Implementation

[0028] The technical solutions of this application will now be described with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only a part of the embodiments of this application, and not all of them. This application can be embodied in many different forms and is not limited to the embodiments described herein.

[0029] In the representation of this application, the reference to terms such as "one embodiment," "some embodiments," "example," "specific example," or "some examples," etc., means that a specific feature, structure, material, or characteristic represented in connection with that embodiment or example is included in at least one embodiment or example of this application. Moreover, the specific features, structures, materials, or characteristics represented may be combined in any suitable manner in one or more embodiments or examples.

[0030] Unless otherwise defined, all technical and scientific terms used herein have the same meaning as commonly understood by one of ordinary skill in the art to which this application pertains; the terminology used herein is for the purpose of describing particular embodiments only and is not intended to limit the application; the terms “comprising” and “having”, and any variations thereof, in the specification, claims, and foregoing description of the drawings are intended to cover non-exclusive inclusion.

[0031] In the description of the embodiments of this application, unless otherwise expressly specified and limited, the technical terms "installation," "connection," "joining," "fixing," etc., should be interpreted broadly. For example, they can refer to a fixed connection; a detachable connection; an integral part; or a mechanical connection. Those skilled in the art can understand the specific meaning of the above terms in the embodiments of this application according to the specific circumstances.

[0032] The following detailed description of some embodiments of this application is provided in conjunction with the accompanying drawings. Without conflict, those skilled in the art can combine and integrate the different embodiments or examples shown in this application, as well as the features of those embodiments or examples.

[0033] This application discloses a transfer device for AGVs. (Refer to...) Figure 1 and Figure 2 The AGV transfer device includes an AGV body 1, a lifting platform 2, a drive unit 3, forks 4, baffles 5, and an adjustment assembly 6. The AGV body 1 is equipped with various sensors and an AGV control system to automatically travel along a predetermined guide path. The lifting platform 2 is mounted on the AGV body 1, and guide rails 20 are fixedly mounted on the AGV body 1. The guide rails 20 are vertically arranged, with two parallel rails. The lifting platform 2 moves vertically along the guide rails 20. The drive unit 3 is connected to the lifting platform 2 via a transmission structure and is used to control the vertical movement of the lifting platform 2.

[0034] Specifically, the transmission structure includes a pair of sprockets 7 and a chain 8. The two sprockets 7 are distributed vertically and are rotatably connected to the AGV body 1. The transmission chain 8 meshes with the two sprockets 7. A lifting seat 2 is mounted on the transmission chain 8, and a counterweight 9 is also mounted on the transmission chain 8. When the lifting seat 2 is at the lower end of the AGV body 1, the counterweight 9 is at the upper end of the AGV body 1. When the lifting seat 2 moves vertically upward, the counterweight 9 moves vertically downward. The counterweight 9 is used to balance the center of gravity of the entire transfer device. In this embodiment, the driving component 3 is a rotary motor. The output shaft of the rotary motor is connected to the sprockets 7 to drive the sprockets 7 to rotate.

[0035] Two forks 4 are horizontally mounted on the lifting platform 2 and arranged in parallel. The two forks 4 are used together to carry materials. The two forks 4 are in the same horizontal plane and are symmetrically arranged along the central axis of the lifting platform 2. A baffle 5 is fixedly connected to one of the long sides of each fork 4. The two baffles 5 are arranged opposite each other to separate the materials on the forks 4.

[0036] When materials need to be transferred, the AGV body 1 is first moved to the designated location using program control. Then, a rotary motor controls the sprocket 7 to rotate, causing the chain 8 to move the lifting platform 2 vertically. The vertical distance between the lifting platform 2 and the ground is adjusted so that the forks 4 can smoothly approach the material. Next, workers move the rectangular materials from the storage rack onto the two forks 4. The forks 4 support the materials, while two baffles 5 separate and limit the materials on both sides, preventing them from falling due to bumps during transport.

[0037] The adjusting component 6 is installed on the lifting base 2, and the two forks 4 are connected to the adjusting component 6. The adjusting component 6 is used to adjust the horizontal distance between the two forks 4. During the production process, materials of different widths and specifications may be encountered. At this time, the adjusting component 6 can be used to adjust the horizontal distance between the two forks 4 to adapt to the size of the materials, making it convenient to carry and transfer materials of different specifications, and improving the practicality of production.

[0038] The adjustment assembly 6 includes a bidirectional lead screw 61, a servo motor 62, a first slider 63, and a second slider 64. The bidirectional lead screw 61 is horizontally positioned and rotatably connected to the lifting base 2. The length direction of the bidirectional lead screw 61 is perpendicular to the length direction of the forks 4. The servo motor 62 is mounted on the lifting base 2, and its output shaft is connected to the bidirectional lead screw 61 to control the forward or reverse rotation of the bidirectional lead screw 61. The first slider 63 is slidably connected to the forward thread of the bidirectional lead screw 61, and the second slider 64 is slidably connected to the reverse thread of the bidirectional lead screw 61. One fork 4 is fixedly connected to the first slider 63, and the other fork 4 is fixedly connected to the second slider 64. The lifting base 2 has a groove 21, within which the first slider 63 and the second slider 64 are located. The groove 21 guides and limits the movement of the first slider 63 and the second slider 64, improving the smoothness of their movement.

[0039] When it is necessary to adjust the horizontal distance between the two forks 4, the servo motor 62 is activated first. The servo motor 62 can drive the bidirectional lead screw 61 to rotate. The rotation of the bidirectional lead screw 61 can be converted into linear motion of the first slider 63 and the second slider 64, so that the first slider 63 and the second slider 64 move closer or further apart, thereby changing the horizontal distance between the two forks 4.

[0040] Optionally, according to some embodiments of this application, please refer to Figure 3 and Figure 4 An anti-detachment component 12 is also installed on the fork 4. The anti-detachment component 12 is used to prevent material from falling from the end of the fork 4. The anti-detachment component 12 includes a moving rod 121, a wedge block 122, a pull rope 123, and a pressure plate 124. The fork 4 has a limiting groove 13 through it. The moving rod 121 moves vertically along the limiting groove 13. The limiting groove 13 is used to guide and limit the moving rod 121. In this embodiment, the moving rod 121 includes a horizontal part 1211 and a vertical part 1212 connected to each other, so that the moving rod 121 is approximately T-shaped or 7-shaped. The vertical part 1212 moves up and down within the limiting groove 13. The horizontal part 1211 is located above the vertical part 1212 and is fixedly connected to one end of the vertical part 1212. The plane of the horizontal part 1211 is parallel to the support surface of the fork 4, and the material is pressed on the horizontal part 1211.

[0041] The fork 4 has an internal cavity 14 that communicates with the limiting groove 13. A wedge block 122 is slidably connected within the cavity 14, and the direction of movement of the wedge block 122 is parallel to the length direction of the fork 4. The lower end of the vertical part 1212 abuts against the wedge-shaped surface of the wedge block 122, and the vertical part 1212 is used to push the wedge block 122 to move horizontally. A first compression spring 16 is connected inside the cavity 14, and the two ends of the first compression spring 16 are respectively connected to the wedge block 122 and the fork 4. The first compression spring 16 is used to control the wedge block 122 to return to its original position.

[0042] The fork 4 is also provided with a mounting groove 15, and a second compression spring 17 is provided in the mounting groove 15. The two ends of the second compression spring 17 are connected to the horizontal part 1211 and the fork 4 respectively. The elastic direction of the second compression spring 17 is parallel to the moving direction of the vertical part 1212. The second compression spring 17 is used to control the entire moving rod 121 to return to its original position.

[0043] The pressure plate 124 is rotatably connected to the end of the fork 4 away from the lifting seat 2 via a torsion spring. The pressure plate 124 is used to prevent material from falling off the fork 4. The two ends of the pull rope 123 are connected to the pressure plate 124 and the wedge block 122, respectively. When the material is placed on the two forks 4, the horizontal part 1211 moves vertically downward under the force of gravity of the material, and the vertical part 1212 moves downward simultaneously. The lower end of the vertical part 1212 moves along the wedge surface of the wedge block 122, thereby driving the wedge block 122 to move horizontally. At this time, the first compression spring 16 is compressed, and the pull rope 123 moves horizontally with the wedge block 122 and pulls the pressure plate 124 to flip, so that the pressure plate 124 can abut against the material on the fork 4.

[0044] After the worker places the material onto the two forks 4 from top to bottom, the moving rod 121 moves vertically downward under the force of the material's gravity. The lower end of the moving rod 121 abuts against the wedge-shaped surface of the wedge block 122, causing the wedge block 122 to move horizontally towards the lifting seat 2. The wedge block 122 drives the pull rope 123 to move synchronously, allowing the pull rope 123 to pull the pressure plate 124 to flip. The upper side of the pressure plate 124 is higher than the support surface where the forks 4 are located, and the pressure plate 124 can abut against one side of the material, thus limiting the material's movement. In this way, the material is simultaneously blocked by the pressure plate 124 and the baffle 5, making it less likely to fall off the forks 4 during transportation and improving transportation stability.

[0045] After the material is removed from the two forks 4, the wedge block 122 can be reset under the elastic restoring force of the first compression spring 16, and the wedge block 122 can lift the moving rod 121. At the same time, under the action of the second compression spring 17, the moving rod 121 can move vertically upward and reset. The pull rope 123 loses its pulling force on the pressure plate 124, and the pressure plate 124 can also be reset under the elastic force of the torsion spring.

[0046] The lower end of the vertical section 1212 is connected to a universal ball bearing 18, and a groove 19 is formed on the wedge-shaped surface of the wedge block 122. The universal ball bearing 18 moves along the direction of the groove 19. When the moving rod 121 applies vertical downward pressure to the wedge block 122, the roller moves along the groove 19. Through the cooperation of the ball bearing and the groove 19, the moving rod 121 can better drive the wedge block 122 to move horizontally. The support surface of the fork 4 is provided with an anti-slip layer (not shown in the figure), which is made of anti-slip material, such as polymer rubber. The upper surface of the horizontal section 1211 is provided with anti-slip texture. Both the anti-slip layer and the anti-slip texture are in contact with the material on the ground, thereby increasing the static friction between the fork 4 and the material and improving the stability during material transportation.

[0047] In this embodiment, to facilitate the setting of the wedge block 122 and the first compression spring 16, the fork 4 is configured as a first fork carriage 41 and a second fork carriage 42. The cavity 14 is located at one end of the second fork carriage 42, and the pressure plate 124 is rotatably connected to the other end of the second fork carriage 42. A rope hole 22 is provided through the second fork carriage 42, which communicates with the cavity 14 and is used for the rope 123 to pass through. Two inserts 23 are fixedly connected to one end of the second fork carriage 42 near the cavity 14, and corresponding insertion holes 24 are provided on the first fork carriage 41 for inserting the inserts 23. The first fork carriage 41 is mounted on the lifting seat 2. A hanging ring is also fixedly connected to one end of the first fork carriage 41 near the cavity 14, and the hanging ring is used for the first compression spring 16 to hook onto. During installation, first fix one end of the pull rope 123 to the wedge block 122, then install the wedge block 122 and the first compression spring 16 into the cavity 14, while simultaneously allowing one end of the pull rope 123 to pass through the rope hole 22 and connect to the pressure plate 124. Next, insert the second fork 42 into the first fork 41. During the insertion process, hook the end of the first compression spring 16 away from the wedge block 122 onto the hanging ring until the insert 23 is fully inserted into the insertion hole 24. The connection between the second fork 42 and the first fork 41 is achieved by the insertion force. To improve the connection stability between the insert 23 and the first fork 41, bolts can be used to further lock the insert 23 onto the first fork 41.

[0048] The implementation principle of the AGV transfer device in this application embodiment is as follows: When it is necessary to transfer materials, the AGV body 1 is first controlled by the program to move to the designated position along a certain path. Then, the sprocket 7 is controlled by the rotary motor to rotate, so that the chain 8 drives the lifting seat 2 to move vertically up and down to adjust to a suitable height position, so that the forks 4 can approach the material location.

[0049] Next, the staff moves the materials from the storage rack onto the two forks 4, which together support the materials. At the same time, the baffles 5 on the forks 4 can separate and limit the materials on both sides, preventing them from falling off due to bumps during transportation and improving production safety.

[0050] Based on the above embodiments, this application also provides a material transfer vehicle, which includes a transfer device for AGVs with all the above structures. Since the transfer device for AGVs has been discussed in detail above, it will not be repeated here.

[0051] The above are all preferred embodiments of this application, and are not intended to limit the scope of protection of this application. Therefore, all equivalent changes made in accordance with the structure, shape and principle of this application should be covered within the scope of protection of this application.

Claims

1. A transfer device for AGVs, characterized in that, The AGV includes a vehicle body (1), a lifting seat (2), a drive unit (3), forks (4), baffles (5), and an adjustment assembly (6). The lifting seat (2) is mounted on the AGV vehicle body (1), and a guide rail (20) is provided on the AGV vehicle body (1). The lifting seat (2) moves up and down on the guide rail (20). The drive unit (3) is connected to the lifting seat (2) and is used to control the movement of the lifting seat (2). The forks (4) are horizontally mounted on the lifting seat (2), and two forks are arranged in parallel. The forks (4) are used to carry materials. The two forks (4) are in the same horizontal plane and are symmetrically arranged along the central axis of the lifting seat (2). Each of the two forks (4) is provided with a baffle (5) on one side of its long side. The baffles (5) are used to separate the materials on the forks (4). The adjustment component (6) is located on the lifting seat (2) and is connected to the two forks (4). The adjustment component (6) is used to adjust the horizontal distance between the two forks (4).

2. The transfer device for AGV according to claim 1, characterized in that, The adjustment assembly (6) includes a bidirectional lead screw (61), a servo motor (62), a first slider (63), and a second slider (64). The bidirectional lead screw (61) is horizontally arranged and rotatably connected to the lifting seat (2). The servo motor (62) is connected to the bidirectional lead screw (61) and is used to control the rotation of the bidirectional lead screw (61). The first slider (63) is slidably connected to the forward thread of the bidirectional lead screw (61), and the second slider (64) is slidably connected to the reverse thread of the bidirectional lead screw (61). The two forks (4) are respectively connected to the first slider (63) and the second slider (64).

3. The transfer device for AGV according to claim 2, characterized in that, The lifting seat (2) is provided with a sliding groove (21), which is used to guide and limit the first slider (63) and the second slider (64).

4. A transfer device for AGV according to claim 2, characterized in that, It also includes an anti-detachment component (12), which is disposed on the fork (4) and is used to restrict material from falling from the end of the fork (4); The anti-detachment component (12) includes a moving rod (121), a wedge block (122), a pull rope (123) and a pressure plate (124). The fork (4) passes through and has a limit groove (13). The moving rod (121) is raised and lowered in the limit groove (13). A cavity (14) is provided inside the fork (4), and the cavity (14) communicates with the limiting groove (13); the wedge block (122) is slidably connected inside the cavity (14), and the moving direction of the wedge block (122) is parallel to the length direction of the fork (4); the lower end of the moving rod (121) abuts against the wedge surface of the wedge block (122) and is used to push the wedge block (122) to move horizontally; wherein, a first compression spring (16) is connected inside the cavity (14), the first compression spring (16) is connected to the wedge block (122) and is used to control the wedge block (122) to reset; The pressure plate (124) is rotatably connected to the end of the fork (4) away from the lifting seat (2) by a torsion spring. The pressure plate (124) is used to restrict the material from falling off the fork (4). The two ends of the pull rope (123) are respectively connected to the pressure plate (124) and the wedge block (122). After the material is placed on the two forks (4), the moving rod (121) moves vertically downward under the gravity of the material. The moving rod (121) drives the wedge block (122) to move horizontally. The pull rope (123) pulls the pressure plate (124) to flip and makes the pressure plate (124) abut against the material on the fork (4).

5. A transfer device for an AGV according to claim 4, characterized in that, The lower end of the moving rod (121) is connected to a universal ball bearing (18), and a groove (19) is provided on the wedge surface of the wedge block (122). The universal ball bearing (18) moves along the groove (19).

6. A transfer device for an AGV according to claim 4, characterized in that, The fork (4) has an anti-slip layer on its support surface, and the upper surface of the moving rod (121) has anti-slip texture.

7. A transfer device for an AGV according to claim 4, characterized in that, It also includes a transmission chain (8) and a counterweight (9). The transmission chain (8) is rotatably connected to the AGV body (1) via a sprocket (7). The lifting seat (2) is located on the transmission chain (8), and the counterweight (9) is also located on the transmission chain (8). When the lifting seat (2) is at the lower end of the AGV body (1), the counterweight (9) is located at the upper end of the AGV body (1). The driving component (3) is a rotary motor. The output shaft of the rotary motor is connected to the sprocket (7) and is used to drive the sprocket (7) to rotate.

8. A transfer device for an AGV according to claim 4, characterized in that, It also includes a second compression spring (17). The moving rod (121) is T-shaped and includes a horizontal part (1211) and a vertical part (1212) connected to each other. The vertical part (1212) is located in the limiting groove (13), and the horizontal part (1211) is located above the vertical part (1212). The fork (4) is provided with a mounting groove (15), and the second compression spring (17) is located in the mounting groove (15). The two ends of the second compression spring (17) are respectively connected to the horizontal part (1211) and the fork (4). The second compression spring (17) is used to control the moving rod (121) to reset, and the horizontal part (1211) is used for stacking materials.

9. A material transfer vehicle, characterized in that, Includes the AGV transfer device as described in any one of claims 1 to 8.

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