An AGV transport trolley capable of automatically loading and unloading materials and a method of using the same

Abstract

The present invention relates to an AGV transport trolley capable of automatic loading and unloading and a method of using the trolley, comprising a moving mechanism and a pillar, wherein the moving mechanism is provided with a storage mechanism, the storage mechanism is used to store a hood support rod, the storage mechanism is provided with a locking mechanism, the locking mechanism is used to block the hood support rod, the pillar is used to drive the locking mechanism to lock the storage mechanism, the storage mechanism is provided with an unlocking mechanism, the unlocking mechanism is used to drive the locking mechanism to reset. The AGV transport trolley capable of automatic loading and unloading is convenient and fast in automatic loading and unloading, saves time and labor, improves the efficiency of loading and unloading, and thus has the advantages of automatic loading and unloading, is convenient for staff to use, and solves the problems of high operation intensity, time and labor consumption, and the possibility of vehicle body scratches and other faults during transportation in the traditional method.

Description

Technical Field

[0001] The present invention relates to the technical field of AGV trolleys, and in particular to an AGV transport trolley capable of automatically loading and unloading materials and a use method thereof. Background Art

[0002] AGV refers to a transport vehicle equipped with electromagnetic or optical automatic navigation devices, which can travel along a specified navigation path and has safety protection and various transfer functions. It is a transport vehicle that does not require a driver in industrial applications and uses a rechargeable battery as its power source. Its travel path and behavior can generally be controlled by a computer, or its travel path can be established using an electromagnetic track that is attached to the floor. The unmanned transport vehicle relies on the information brought by the electromagnetic track to move and act.

[0003] The gluing line in the painting shop is mainly responsible for the watertight gluing of the car body. If the gluing quality is poor, it will cause great safety hazards to the delivery quality of the entire car. In order to smoothly and conveniently complete the gluing operation in the engine compartment, the hood must be temporarily supported by a hood support rod fixture, starting from the thread head to the end of the line. The operation is completed after the hood support rod is removed and temporarily stored in the material frame at the edge of the line. When about 20 units are stored, a full-time transfer operator transfers the support rod to the thread head and places it in the temporary storage frame. This cycle of back and forth work is repeated every day. The distance from the thread head to the end of the line is as long as 200 meters. The operation is intensive, time-consuming and labor-intensive. During the transfer, there are also faults such as scratches on the car body. It is necessary to improve an AGV transport vehicle that can automatically load and unload materials. Summary of the invention

[0004] In view of the shortcomings of the prior art, the present invention provides an AGV transport trolley that can automatically load and unload materials and a method of using the same, which has the advantages of automatic loading and unloading, and solves the problems of the traditional method that the operation is intensive, time-consuming and labor-intensive, and there is also the problem of scratches on the vehicle body during transportation.

[0005] To achieve the above-mentioned purpose, the present invention provides the following technical solutions: an AGV transport cart that can automatically load and unload materials, comprising a moving mechanism and a pillar, the moving mechanism is provided with a storage mechanism, the storage mechanism is used to store a hood support rod, the storage mechanism is provided with a locking mechanism, the locking mechanism is used to block the hood support rod, the pillar is used to drive the locking mechanism to lock the storage mechanism, the storage mechanism is provided with an unlocking mechanism, the unlocking mechanism is used to drive the locking mechanism to reset.

[0006] Furthermore, the mobile mechanism includes an AGV vehicle plate, a touch sensor is fixedly connected to the lower front surface of the AGV vehicle plate, a metal plate is welded and fixed to the right side of the upper surface of the AGV vehicle plate, a control device is fixedly connected to the right side of the upper surface of the metal plate, and a battery holder is fixedly connected to the left side of the upper surface of the metal plate, and a battery is placed inside the battery holder.

[0007] Furthermore, the storage mechanism includes a long board, which is fixedly connected to the left side of the upper surface of the AGV vehicle board, the top of the long board is fixedly connected to the bottom plate, the upper surface of the bottom plate is fixedly connected to a U-shaped frame, the right side of the U-shaped frame is fixedly connected to a box body, the middle of the U-shaped frame is fixedly connected to a partition, and the front and rear sides of the upper surface of the U-shaped frame are fixedly connected to side panels.

[0008] Furthermore, the top end of the side plate is fixedly connected to a support rod, the top end of the support rod is fixedly connected to a top plate, and a plastic box is placed on the upper surface of the top plate.

[0009] Furthermore, the locking mechanism includes a metal sheet, which is fixedly connected to the front surface of the front side plate, and the front end of the metal sheet is fixedly connected to a ring, the interior of the ring is rotatably connected to a cylinder via a rotating shaft, a support rod is installed inside the cylinder, and the rear surface of the side plate at the rear is rotatably connected to a disc via a torsion spring, and the outer side wall of the disc is fixedly connected to a lever and a fixing block.

[0010] Furthermore, the support rod includes a support rod and a blocking rod, the blocking rod is fixedly connected to the inside of the cylinder, the top end of the blocking rod is fixedly connected to the support rod, and a connecting plate is fixedly connected above the front surface of the side plate in the front.

[0011] Furthermore, the pillar is fixed on the ground, and the pillar includes a column rod, a first metal rod, a second metal rod and a third metal rod. The outer side wall of the column rod is fixedly connected to the first metal rod, one end of the first metal rod is fixedly connected to the second metal rod, and one end of the second metal rod is fixedly connected to the third metal rod.

[0012] Furthermore, the unlocking mechanism includes a long groove, which is opened on the front surface and rear surface of the U-shaped frame and the inside of the partition. The front surface and rear surface of the U-shaped frame are provided with a movable plate. The inside of the long groove is slidably connected with a baffle through a slider. The end of the baffle is fixedly connected to the movable plate, and a push rod is welded and fixed to one side of the movable plate at the rear.

[0013] Furthermore, a motor is installed inside the AGV vehicle plate, the output shaft of the motor is fixedly connected to a screw rod, the outer side wall of the screw rod is meshingly connected to a screw rod support, and the top end of the screw rod support is fixedly connected to a moving plate.

[0014] Another technical problem solved by the present invention is to provide a method for using an AGV transport vehicle capable of automatically loading and unloading materials, comprising the following steps:

[0015] 1) Self-locking: The battery provides power to the AGV transport trolley, and the control device controls the AGV transport trolley. When the AGV board is controlled to run to the specified position, the third metal rod drives the support rod and the cylinder to rotate by using the power of the AGV board itself. The blocking rod can be placed on the rod to block the U-shaped frame.

[0016] 2) Loading: After the touch sensor detects that the AGV vehicle board has reached the temporary placement position of the hood support rod, the hood blocker in the line body automatically opens, and the hood support rod in the line body automatically slides into the U-shaped frame for temporary storage of the hood support rod;

[0017] 3) Unloading: When the AGV receives the signal that the support rod is in place, the AGV moves backwards and moves the support rod along the specified route outside the entity to the unloading position of the hood support rod inside the thread head entity. When the AGV detects the unloading position signal, the AGV stops running and opens the screw rod, which drives the screw rod support, the moving plate and the push rod to move, so that the push rod drives the fixed block to move. The fixed block rotates the disc through the torsion spring, and the disc drives the lever to rotate. The baffle rod separates from the lever and falls down. When the moving plate drives the baffle plate to move, the baffle plate drives the slider to move inside the long slot, so that the baffle plate moves smoothly. The baffle plate drives the hood support rod in the U-shaped frame to move out, and the whole unloading process is completed.

[0018] 4) Reset: When the signal of removing the hood support rod is detected, the AGV car board automatically starts to return to the AGV car board and moves forward, and the screw rod is reset to its original position at the same time, thus completing a complete cycle process.

[0019] Compared with the prior art, the technical solution of this application has the following beneficial effects:

[0020] 1. The AGV transport trolley capable of automatic loading and unloading and its use method: when the AGV vehicle board is controlled to run to the specified position, the AGV vehicle board uses its own forward momentum to drive the support rod and the cylinder to rotate, and the blocking rod can be placed on the support rod, and the blocking rod blocks the U-shaped frame. After the touch sensor detects that the AGV vehicle board has reached the temporary placement position of the hood support rod, the hood blocker in the line body automatically opens, and the hood support rod in the line body automatically slides into the U-shaped frame to temporarily store the hood support rod. When the AGV vehicle board receives the signal that the support rod is in place, the AGV vehicle board runs backwards, and the support rod runs along the specified route outside the entity to the machine inside the line head entity. At the hood support rod unloading point, when the AGV detects the unloading position signal, the AGV car plate stops running and opens the screw rod, which drives the screw rod support, the movable plate and the push rod to move, so that the push rod drives the fixed block to move. The fixed block rotates the disc through the torsion spring, and the disc drives the lever to rotate. The baffle rod separates from the lever and falls down. When the movable plate drives the baffle plate to move, the baffle plate drives the slider to move inside the long groove, so that the baffle plate moves smoothly. The baffle plate drives the hood support rod in the U-shaped frame to move out, and the entire unloading process is completed. Automatic loading and unloading is convenient and fast, saving time and effort, and improving the loading and unloading efficiency. It has the advantages of automatic loading and unloading and is convenient for the staff to use. BRIEF DESCRIPTION OF THE DRAWINGS

[0021] Figure 1 It is a structural schematic diagram of the present invention;

[0022] Figure 2 It is a rear view structural schematic diagram of the present invention;

[0023] Figure 3 It is a schematic diagram of the structure of the pillar and the support rod in the present invention;

[0024] Figure 4 It is a schematic diagram of the top view structure of the support of the present invention;

[0025] Figure 5 For the present invention Figure 2 Schematic diagram of the structure of the middle U-shaped frame viewed from above.

[0026] In the figure: 1. control device; 2. battery; 3. metal plate; 4. battery holder; 5. touch sensor; 6. motor; 7. screw rod; 8. screw rod support; 9. AGV vehicle plate; 10. box body; 11. moving plate; 12. support rod; 13. top plate; 14. plastic box; 15. side plate; 16. metal sheet; 17. connecting plate; 18. support rod; 19. cylinder; 20. collar; 21. stop rod; 22. U-shaped frame; 23. long groove; 24. push rod; 25. lever; 26. disc; 27. fixing block; 28. first metal rod; 29. ​​column rod; 30. second metal rod; 31. third metal rod; 32. partition; 33. baffle; 34. bottom plate; 35. long plate; 100. pillar; 200. support rod. DETAILED DESCRIPTION

[0027] The following will be combined with the drawings in the embodiments of the present invention to clearly and completely describe the technical solutions in the embodiments of the present invention. Obviously, the described embodiments are only part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the present invention.

[0028] See also Figure 1-5 In this embodiment, an AGV transport cart that can automatically load and unload materials includes a moving mechanism and a pillar 100. The moving mechanism is provided with a storage mechanism, the storage mechanism is used to store the hood support rod, the storage mechanism is provided with a locking mechanism, the locking mechanism is used to block the hood support rod, the pillar 100 is used to drive the locking mechanism to lock the storage mechanism, and the storage mechanism is provided with an unlocking mechanism, the unlocking mechanism is used to drive the locking mechanism to reset.

[0029] Specifically, the moving mechanism can move, and when passing through the pillar 100, the pillar 100 drives the locking mechanism to lock the storage mechanism, and the hood support rod enters the storage mechanism for storage. After the moving mechanism moves to the specified position, the locking mechanism is reset through the unlocking mechanism, and the hood support rod is automatically unloaded. Automated loading and unloading is convenient and fast, saving time and effort, and improving loading and unloading efficiency.

[0030] In this embodiment, the mobile mechanism includes an AGV vehicle plate 9, a touch sensor 5 is fixedly connected to the lower front surface of the AGV vehicle plate 9, a metal plate 3 is welded and fixed to the right side of the upper surface of the AGV vehicle plate 9, a control device 1 is fixedly connected to the right side of the upper surface of the metal plate 3, a battery holder 4 is fixedly connected to the left side of the upper surface of the metal plate 3, and a battery 2 is placed inside the battery holder 4.

[0031] Specifically, the control circuit of the control device 1 can be realized by simple programming by those skilled in the art. The present invention is mainly used to protect mechanical devices, so the present invention will not explain the control method and circuit connection in detail.

[0032] In this embodiment, the storage mechanism includes a long board 35, which is fixedly connected to the left side of the upper surface of the AGV vehicle board 9, the top of the long board 35 is fixedly connected to the bottom plate 34, the upper surface of the bottom plate 34 is fixedly connected to the U-shaped frame 22, the right side of the U-shaped frame 22 is fixedly connected to the box body 10, the middle of the U-shaped frame 22 is fixedly connected to the partition 32, and the front and rear sides of the upper surface of the U-shaped frame 22 are fixedly connected to the side panels 15.

[0033] Specifically, the hood stay is temporarily stored inside the U-shaped frame 22 .

[0034] In this embodiment, the top end of the side plate 15 is fixedly connected to the support rod 12 , the top end of the support rod 12 is fixedly connected to the top plate 13 , and a plastic box 14 is placed on the upper surface of the top plate 13 .

[0035] Specifically, items can be stored inside the plastic box 14 , or directly stored on the top of the top plate 13 .

[0036] In this embodiment, the locking mechanism includes a metal sheet 16, which is fixedly connected to the front surface of the front side panel 15. The front end of the metal sheet 16 is fixedly connected to a ring 20. The interior of the ring 20 is rotatably connected to a cylinder 19 via a rotating shaft. A support rod 200 is installed inside the cylinder 19. The rear surface of the rear side panel 15 is rotatably connected to a disk 26 via a torsion spring. The outer wall of the disk 26 is fixedly connected to a lever 25 and a fixing block 27.

[0037] Specifically, the support rod 200 is placed on the lever 25, and the support rod 200 can lock the U-shaped frame 22. When the disc 26 rotates, the disc 26 drives the lever 25 to rotate, and the support rod 200 separates from the lever 25 and falls down.

[0038] In this embodiment, the support rod 200 includes a support rod 18 and a blocking rod 21. The blocking rod 21 is fixedly connected to the inside of the cylinder 19, the top of the blocking rod 21 is fixedly connected to the support rod 18, and the connecting plate 17 is fixedly connected above the front surface of the side plate 15 in the front.

[0039] Specifically, the support rod 200 is made of metal. When the AGV moves, the support rod 200 hits the pillar 100, and the support rod 200 will rotate. The blocking rod 21 is placed on the lever 25, and the connecting plate 17 is used to block the support rod 18. When the blocking rod 21 falls off the lever 25, it can prevent the support rod 18 from shaking too much.

[0040] In this embodiment, the pillar 100 is fixed on the ground, and the pillar 100 includes a column 29, a first metal rod 28, a second metal rod 30 and a third metal rod 31. The outer wall of the column 29 is fixedly connected to the first metal rod 28, one end of the first metal rod 28 is fixedly connected to the second metal rod 30, and one end of the second metal rod 30 is fixedly connected to the third metal rod 31.

[0041] Specifically, when the AGV moves, the support rod 18 and the third metal rod 31 contact each other, the support rod 18 and the cylinder 19 rotate, and the blocking rod 21 can be placed on the supporting rod 25.

[0042] In this embodiment, the unlocking mechanism includes a long groove 23, which is opened on the front surface and rear surface of the U-shaped frame 22 and inside the partition 32. The front surface and rear surface of the U-shaped frame 22 are provided with a movable plate 11. The inside of the long groove 23 is slidably connected to a baffle 33 through a slider. The end of the baffle 33 is fixedly connected to the movable plate 11, and a push rod 24 is welded and fixed to one side of the movable plate 11 at the rear.

[0043] Specifically, when the movable plate 11 drives the baffle plate 33 to move, the baffle plate 33 drives the slider to move inside the long groove 23, so that the baffle plate 33 moves smoothly, and the baffle plate 33 moves the hood support rod in the U-shaped frame 22 out.

[0044] In this embodiment, a motor 6 is installed inside the AGV vehicle plate 9, the output shaft of the motor 6 is fixedly connected to a screw rod 7, the outer wall of the screw rod 7 is meshedly connected to a screw rod support 8, and the top of the screw rod support 8 is fixedly connected to a moving plate 11.

[0045] Specifically, the battery 2 provides electric energy to the motor 6, the motor 6 drives the screw rod 7 to move, and the screw rod 7 drives the screw rod support 8, the moving plate 11 and the push rod 24 to move.

[0046] Another technical problem solved by the present invention is to provide a method for using an AGV transport vehicle capable of automatically loading and unloading materials, comprising the following steps:

[0047] (1) Self-locking: The battery 2 provides power to the AGV transport trolley of the device, and the control device 1 controls the AGV transport trolley of the device. When the AGV vehicle board 9 is controlled to move to the specified position, the third metal rod 31 drives the support rod 18 and the cylinder 19 to rotate by using the power of the AGV vehicle board 9 itself, and the blocking rod 21 can be placed on the rod 25, and the blocking rod 21 blocks the U-shaped frame 22;

[0048] (2) Loading: After the touch sensor 5 detects that the AGV vehicle plate 9 has reached the temporary placement position of the hood support rod, the hood blocker in the line body automatically opens, and the hood support rod in the line body automatically slides into the U-shaped frame 22 to temporarily store the hood support rod;

[0049] (3) Unloading: When the AGV carriage 9 receives the signal that the support rod is in place, the AGV carriage 9 moves backward and moves the support rod along the specified route outside the entity to the unloading position of the hood support rod inside the thread end entity. When the AGV detects the unloading position signal, the AGV carriage 9 stops running and opens the screw rod 7, which drives the screw rod support 8, the movable plate 11 and the push rod 24 to move, so that the push rod 24 drives the fixed block 27 to move. The fixed block 27 rotates the disc 26 through the torsion spring, and the disc 26 drives the lever 25 to rotate. The baffle 21 separates from the lever 25 and falls down. When the movable plate 11 drives the baffle 33 to move, the baffle 33 drives the slider to move inside the long slot 23, so that the baffle 33 moves smoothly. The baffle 33 drives the hood support rod in the U-shaped frame 22 to move out, and the whole unloading process is completed.

[0050] (4) Reset: When the signal that the hood support rod has been removed is detected, the AGV car plate 9 automatically starts to return to the AGV car plate 9 and moves forward, and at the same time the screw rod 7 is reset to its original position, thus completing a complete cycle process.

[0051] The working principle of the above embodiment is:

[0052] The battery 2 provides power for the device, and the control device 1 controls the device. When the AGV board 9 is controlled to run to the specified position, the third metal rod 31 uses the forward power of the AGV board 9 itself to drive the support rod 18 and the cylinder 19 to rotate, and the blocking rod 21 can be placed on the support rod 25. The blocking rod 21 blocks the U-shaped frame 22. After the touch sensor 5 detects that the AGV board 9 has reached the temporary placement position of the hood support rod, the hood blocker in the line body automatically opens, and the hood support rod in the line body automatically slides into the U-shaped frame 22 to temporarily store the hood support rod. When the AGV board 9 receives the signal that the support rod is in place, the AGV board 9 runs backward, and runs the support rod along the specified route outside the entity to the hood support rod unloading position inside the line head entity. When the AGV detects the unloading position signal, the AGV board 9 stops running and opens. The screw rod 7 is started, and the screw rod 7 drives the screw rod support 8, the movable plate 11 and the push rod 24 to move, so that the push rod 24 drives the fixed block 27 to move, and the fixed block 27 rotates the disc 26 through the torsion spring, and the disc 26 drives the lever 25 to rotate. The baffle 21 separates from the lever 25 and falls down. When the movable plate 11 drives the baffle 33 to move, the baffle 33 drives the slider to move inside the long groove 23, so that the baffle 33 moves smoothly. The baffle 33 drives the hood support rod in the U-shaped frame 22 to move out, and the entire unloading process can be completed. When the signal of unloading the hood support rod is detected, the AGV car plate 9 automatically starts to return to the AGV car plate 9 to move forward, and the screw rod 7 is in place at the same time, thus completing a complete cycle process. Automatic loading and unloading is convenient and fast, saving time and effort, and improving the loading and unloading efficiency. It has the advantages of automatic loading and unloading and is convenient for the staff to use.

[0053] It should be noted that, in this article, relational terms such as first and second, etc. are only used to distinguish one entity or operation from another entity or operation, and do not necessarily require or imply any such actual relationship or order between these entities or operations. Moreover, the terms "include", "comprise" or any other variants thereof are intended to cover non-exclusive inclusion, so that a process, method, article or device including a series of elements includes not only those elements, but also other elements not explicitly listed, or also includes elements inherent to such process, method, article or device. In the absence of further restrictions, the elements defined by the sentence "comprise a ..." do not exclude the existence of other identical elements in the process, method, article or device including the elements.

[0054] Although embodiments of the present invention have been shown and described, it will be appreciated by those skilled in the art that various changes, modifications, substitutions and variations may be made to the embodiments without departing from the principles and spirit of the present invention, and that the scope of the present invention is defined by the appended claims and their equivalents.

Claims

1. An AGV transport vehicle capable of automatically loading and unloading materials, comprising a moving mechanism and a support (100), characterized in that: The moving mechanism is provided with a storage mechanism, the storage mechanism is used to store the hood support rod, the storage mechanism is provided with a locking mechanism, the locking mechanism is used to block the hood support rod, the support (100) is used to drive the locking mechanism to lock the storage mechanism, the storage mechanism is provided with an unlocking mechanism, the unlocking mechanism is used to drive the locking mechanism to reset; The storage mechanism comprises a U-shaped frame (22), and side plates (15) are fixedly connected to the front and rear sides of the upper surface of the U-shaped frame (22); The locking mechanism comprises a metal sheet (16), the metal sheet (16) being fixedly connected to the front surface of the front side plate (15), the front end of the metal sheet (16) being fixedly connected to a collar (20), the interior of the collar (20) being rotatably connected to a cylinder (19) via a rotating shaft, the interior of the cylinder (19) being installed with a support rod (200), the surface of the U-shaped frame (22) being rotatably installed with a disc (26) via a torsion spring, the outer side wall of the disc (26) being fixedly connected to a lever (25) and a fixing block (27); The support column (100) is fixed on the ground, and the support column (100) comprises a column rod (29), a first metal rod (28), a second metal rod (30) and a third metal rod (31); the outer side wall of the column rod (29) is fixedly connected to the first metal rod (28), one end of the first metal rod (28) is fixedly connected to the second metal rod (30), and one end of the second metal rod (30) is fixedly connected to the third metal rod (31); The front and rear surfaces of the U-shaped frame (22) are provided with moving plates (11), and a push rod (24) is welded and fixed to one side of the moving plate (11) at the rear.

2. The AGV transport vehicle capable of automatic loading and unloading according to claim 1 is characterized in that: The mobile mechanism comprises an AGV vehicle plate (9), a touch sensor (5) is fixedly connected to the lower part of the front surface of the AGV vehicle plate (9), a metal plate (3) is welded and fixed to the right side of the upper surface of the AGV vehicle plate (9), a control device (1) is fixedly connected to the right side of the upper surface of the metal plate (3), and a battery holder (4) is fixedly connected to the left side of the upper surface of the metal plate (3), and a storage battery (2) is placed inside the battery holder (4).

3. The AGV transport vehicle capable of automatic loading and unloading according to claim 1 is characterized in that: The storage mechanism further comprises a long plate (35), wherein the long plate (35) is fixedly connected to the left side of the upper surface of the AGV vehicle plate (9), the top end of the long plate (35) is fixedly connected to a bottom plate (34), the upper surface of the bottom plate (34) is fixedly connected to a U-shaped frame (22), the right side of the U-shaped frame (22) is fixedly connected to a box body (10), and the middle part of the U-shaped frame (22) is fixedly connected to a partition plate (32).

4. The AGV transport vehicle capable of automatic loading and unloading according to claim 3 is characterized in that: The top end of the side plate (15) is fixedly connected to a support rod (12), the top end of the support rod (12) is fixedly connected to a top plate (13), and a plastic box (14) is placed on the upper surface of the top plate (13).

5. The AGV transport vehicle capable of automatic loading and unloading according to claim 1 is characterized in that: The support rod (200) comprises a support rod (18) and a blocking rod (21); the blocking rod (21) is fixedly connected to the interior of the cylinder (19); the top end of the blocking rod (21) is fixedly connected to the support rod (18); and a connecting plate (17) is fixedly connected above the front surface of the side plate (15) at the front.

6. The AGV transport vehicle capable of automatic loading and unloading according to claim 3 is characterized in that: The unlocking mechanism comprises a long groove (23), the long groove (23) being opened on the front surface and the rear surface of the U-shaped frame (22) and inside the partition (32), the inside of the long groove (23) being slidably connected to a baffle (33) via a slider, and the end of the baffle (33) being fixedly connected to the movable plate (11).

7. The AGV transport vehicle capable of automatic loading and unloading of materials according to claim 2 is characterized in that: A motor (6) is installed inside the AGV vehicle plate (9); the output shaft of the motor (6) is fixedly connected to a screw rod (7); the outer wall of the screw rod (7) is meshingly connected to a screw rod support (8); and the top end of the screw rod support (8) is fixedly connected to a moving plate (11).

8. A method for using the AGV transport vehicle capable of automatic loading and unloading according to any one of claims 1 to 7, characterized in that: The following steps are involved: 1) Self-locking: The battery (2) provides electric energy to the AGV transport trolley, and the control device (1) controls the AGV transport trolley. When the AGV vehicle board (9) is controlled to move to a specified position, the power of the AGV vehicle board (9) itself is used to drive the support rod (18) and the cylinder (19) to rotate, and the blocking rod (21) can be placed on the supporting rod (25), and the blocking rod (21) blocks the U-shaped frame (22); 2) Loading: After the touch sensor (5) detects that the AGV vehicle plate (9) has reached the temporary placement position of the hood support rod, the hood blocker in the line body is automatically opened, and the hood support rod in the line body is automatically slid into the U-shaped frame (22) to temporarily store the hood support rod; 3) Unloading: When the AGV vehicle plate (9) receives the signal that the support rod is in place, the AGV vehicle plate (9) moves backwards and moves the support rod along the specified route outside the entity to the unloading position of the hood support rod inside the thread end entity. When the AGV detects the unloading position signal, the AGV vehicle plate (9) stops running and starts the screw rod (7), which drives the screw rod support (8), the moving plate (11) and the push rod (24) to move, so that the push rod (24) drives the fixed block (27) The fixed block (27) rotates the disc (26) through the torsion spring, and the disc (26) drives the lever (25) to rotate. The lever (21) separates from the lever (25) and then falls down. When the movable plate (11) drives the baffle plate (33) to move, the baffle plate (33) drives the slider to move inside the long groove (23), so that the baffle plate (33) moves smoothly. The baffle plate (33) drives the hood support rod in the U-shaped frame (22) to move out, and the entire unloading process is completed. 4) Reset: When the signal of removing the hood support rod is detected, the AGV vehicle plate (9) automatically starts to return to the AGV vehicle plate (9) and moves forward, and the screw rod (7) is reset at the same time, thus completing a complete cycle process.

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