Automatic centering and clamping device for unloading cargo

Abstract

The utility model discloses an automatic centering clamping device of unloading goods, including bottom plate, the top of bottom plate is equipped with the support plate for supporting, the top of support plate is equipped with the upper plate, is equipped with two movable clamping components on the upper plate, two clamping components can move towards each other, the top of bottom plate is equipped with recess, the recess is rotatably connected with rotating component, the top of rotating component can place tray, is equipped with the linkage component on the upper plate respectively with two clamping components is connected, is installed on the support plate for driving the electric jar of clamping component movement. The device is designed for unloading scene, through the synchronous movement of clamping component under the control of linkage component, realizes the efficient automatic centering positioning of the goods on the tray of forklift unloading from the truck, eliminates the deviation caused in the transportation process, ensures the precision of subsequent handling or stacking operation. The setting of rotating component makes the tray can realize directional rotation in the centering process.

Description

Technical Field

[0001] This utility model relates to the field of warehouse logistics technology, and in particular to an automatic centering and clamping device for unloading goods. Background Technology

[0002] Automated cargo centering during unloading significantly improves the efficiency and safety of logistics operations. By automatically adjusting the cargo on the pallet to the center position, it effectively eliminates offsets that occur during transportation, providing a precise positioning basis for subsequent operations such as robotic arm gripping, automated palletizing, and AGV handling. This prevents cargo from falling, colliding, or malfunctioning due to off-center loading. Simultaneously, this process requires no manual intervention, reducing labor intensity and costs, and improving the consistency and continuity of operational rhythm.

[0003] In existing technologies, goods are often not centered after unloading and directly enter subsequent operations, which can easily lead to goods shifting or tilting on the pallet. This can easily cause safety hazards such as robotic arm failure, unstable stacking, and goods tipping over during AGV transportation, affecting logistics efficiency. At the same time, unevenly loaded goods are prone to causing equipment wear or jamming during transportation, increasing maintenance costs. Utility Model Content

[0004] The purpose of this invention is to provide an automatic centering and clamping device for unloaded goods, in order to solve the problem mentioned in the background art that unloaded goods are often not centered and directly enter the subsequent operation stage, which easily leads to the goods on the pallet shifting or tilting.

[0005] To achieve the above objectives, this utility model provides the following technical solution: an automatic centering and clamping device for unloading goods, comprising a base plate, a support plate on the top of the base plate for support, an upper plate on the top of the support plate, two movable clamping components on the upper plate, the two clamping components being able to move towards each other, a groove on the top of the base plate, a rotating component rotatably connected in the groove, a tray being placed on the top of the rotating component, a linkage component connected to the two clamping components respectively on the upper plate, and an electric cylinder for driving the clamping components to move on the support plate.

[0006] In the preferred embodiment of this technical solution, the top of the base plate is flush with the ground, and the rotating component includes a commutator that rotates in a groove, a servo motor that drives the commutator at the bottom of the base plate, and a recess in the ground that avoids the servo motor.

[0007] In the preferred embodiment of this technical solution, the clamping assembly is slidably connected to the bottom of the upper plate, and the linkage assembly includes a turntable rotatably connected to the bottom of the upper plate, with two linkage rods rotatably connected to the turntable, and the linkage rods being rotatably connected to the clamping assembly.

[0008] In a preferred embodiment of this technical solution, the bottom of the upper plate is provided with a slide rail, and the clamping assembly includes a slider that is slidably connected to the slide rail, with a clamping plate installed below the slider.

[0009] In the preferred embodiment of this technical solution, the top of the steering wheel is provided with a positioning post, and the tray is provided with positioning holes corresponding to the positioning post.

[0010] Based on the preferred embodiment of this technical solution, a floating plate is floatingly connected to the clamping plate, which is used to prevent the clamping plate from making hard contact with the unloaded goods.

[0011] In the preferred embodiment of this technical solution, a first guide rod is provided on the floating plate, a screw hole is provided on the clamping plate, a screw is screwed to the screw hole, a through hole is provided on the screw, the first guide rod can pass through the through hole, a spring is sleeved on the first guide rod, and the screw can compress the spring.

[0012] Based on the preferred embodiment of this technical solution, a second guide rod is spirally connected to the floating plate to pass through the clamping plate. The second guide rod is provided with a limiting block, which is used to prevent the floating plate from separating from the clamping plate.

[0013] Compared with the prior art, the beneficial effects of this utility model are:

[0014] 1. By using the synchronous opposite movement of the clamping components under the control of the linkage components, the efficient automatic centering and positioning of goods on pallets unloaded from trucks by forklifts is achieved, eliminating the offset caused during transportation and ensuring the accuracy of subsequent handling or palletizing operations.

[0015] 2. It constitutes an adjustable elastic buffer mechanism, with springs providing buffering and reset functions, and the first guide rod ensuring precise guidance of the floating plate's movement. The spring preload can be adjusted by rotating the screw, thereby flexibly adjusting the clamping flexibility according to the weight, material, or packaging strength of the goods, achieving the function of "light clamping for light goods and stable clamping for heavy goods". Attached Figure Description

[0016] Figure 1 This is a schematic diagram of the implementation method of the automatic centering and clamping device for unloading goods according to this utility model;

[0017] Figure 2 This is a schematic diagram of the groove structure of this utility model;

[0018] Figure 3 This is a schematic diagram of the commutator structure of this utility model;

[0019] Figure 4 This is a schematic diagram of the floating plate structure of this utility model;

[0020] Figure 5 This is a schematic diagram of the screw structure of this utility model.

[0021] Explanation of reference numerals in the attached drawings: 1. Base plate; 10. Groove; 11. Support plate; 111. Electric cylinder; 12. Top plate; 121. Slide rail; 2. Clamping assembly; 21. Slider; 22. Clamping plate; 220. Screw hole; 23. Floating plate; 231. First guide rod; 232. Spring; 24. Second guide rod; 241. Limit block; 25. Screw; 250. Through hole; 3. Linkage assembly; 31. Turntable; 32. Linkage rod; 4. Rotation assembly; 41. Reversing plate; 411. Positioning column; 42. Servo motor; 5. Tray; 51. Positioning hole. Detailed Implementation

[0022] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the protection scope of the present utility model.

[0023] Please see Figure 1-5 This utility model provides an embodiment of an automatic centering and clamping device for unloading goods, comprising a base plate 1, a support plate 11 on the top of the base plate 1 for support, an upper plate 12 on the top of the support plate 11, and two movable clamping components 2 on the upper plate 12, which can move towards each other. A groove 10 is provided on the top of the base plate 1, and a rotating component 4 is rotatably connected within the groove 10. A pallet 5 can be placed on the top of the rotating component 4. A linkage component 3 is provided on the upper plate 12, which is connected to the two clamping components 2 respectively. An electric cylinder 111 is installed on the support plate 11 to drive the clamping components 2 to move. This device is specifically designed for unloading scenarios. Through the synchronous, opposite movement of the clamping components 2 under the control of the linkage component 3, it achieves efficient and automatic centering and positioning of goods on pallets 5 unloaded from trucks by forklifts, eliminating offsets caused during transportation and ensuring the accuracy of subsequent handling or palletizing operations. The rotating component 4 allows the pallet 5 to rotate directionally during the centering process, supporting the sequential clamping and centering of two sets of opposite sides of the goods on the four sides, which facilitates subsequent transportation with the AGV.

[0024] Please see Figure 1-5A further embodiment of this design is as follows: the top of the base plate 1 is flush with the ground. The rotating assembly 4 includes a steering wheel 41 that rotates within a groove 10 and a servo motor 42 that drives the steering wheel 41 at the bottom of the base plate 1. The ground has recesses to allow the servo motor 42 to pass. The design of the base plate 1 being flush with the ground ensures that forklifts or AGVs can smoothly enter and exit the loading and unloading area, avoiding tripping or collisions with the pallet 5, thus improving operational safety and smoothness. The servo motor 42 is installed in the recesses in the ground, achieving an embedded layout of the equipment, not occupying external space, and keeping the site clean. The servo motor 42 precisely drives the steering wheel 41 to rotate.

[0025] Please see Figure 1-4 A further embodiment of this solution is as follows: the clamping assembly 2 is slidably connected to the bottom of the upper plate 12, and the linkage assembly 3 includes a turntable 31 rotatably connected to the bottom of the upper plate 12. Two linkage rods 32 are rotatably connected to the turntable 31, and the linkage rods 32 are rotatably connected to the clamping assembly 2. The synchronous transmission structure of the turntable 31 driving the two linkage rods 32 ensures that the two clamping assemblies 2 always move symmetrically, achieving true "automatic centering" and avoiding the squeezing or tilting of goods caused by one side contacting first. By controlling the electric cylinder 111 to push the turntable 31 to rotate, the clamping stroke can be precisely adjusted to adapt to different sizes of pallets 5 and goods, and it has good versatility.

[0026] Please see Figure 1-4 A further embodiment of this solution is as follows: A slide rail 121 is provided at the bottom of the upper plate 12. The clamping assembly 2 includes a slider 21 slidably connected to the slide rail 121, and a clamping plate 22 is installed below the slider 21. The slide rail 121 and the slider 21 constitute a high-rigidity linear guide system, ensuring that the clamping assembly 2 moves without swaying or jamming, thus improving clamping accuracy and stability. This structure can effectively withstand lateral forces and impact loads during clamping, extending the service life of the equipment.

[0027] Please see Figure 1-4 A further solution based on this embodiment is as follows: a positioning post 411 is provided on the top of the steering wheel 41, and a positioning hole 51 corresponding to the positioning post 411 is provided on the tray 5. The cooperation between the positioning post 411 and the positioning hole 51 enables the tray 5 to be quickly and accurately positioned and locked to prevent rotation, ensuring that the installation position of the tray 5 on the steering wheel 41 is reliable and preventing slippage or displacement during rotation. This design not only improves the repeatability of clamping alignment but also ensures the safety of the rotation process.

[0028] Please see Figure 2-5 A further solution based on this embodiment is as follows: a floating plate 23 is floatingly connected to the clamping plate 22. The floating plate 23 is used to prevent the clamping plate 22 from making hard contact with the unloading goods. The introduction of the floating plate 23 achieves "flexible clamping", effectively buffering the impact force at the moment of clamping and avoiding crushing or deformation of fragile packaging such as cardboard boxes and plastic boxes.

[0029] Please see Figure 2-5 A further embodiment of this solution is as follows: A first guide rod 231 is provided on the floating plate 23, and a screw hole 220 is provided on the clamping plate 22. A screw rod 25 is screwed onto the screw hole 220, and a through hole 250 is provided on the screw rod 25. The first guide rod 231 can pass through the through hole 250, and a spring 232 is sleeved on the first guide rod 231. The screw rod 25 can compress the spring 232. This structure constitutes an adjustable elastic buffer mechanism. The spring 232 provides buffering and reset functions, and the first guide rod 231 ensures accurate guidance of the floating plate 23's movement. By rotating the screw rod 25, the preload of the spring 232 can be adjusted, thereby flexibly adjusting the clamping flexibility according to the weight, material, or packaging strength of the goods, achieving the function of "light clamping for light goods and stable clamping for heavy goods."

[0030] Please see Figure 2-5 A further embodiment of this solution is as follows: a second guide rod 24, which passes through the clamping plate 22, is spirally connected to the floating plate 23. A limiting block 241 is provided on the second guide rod 24 to prevent the floating plate 23 from detaching from the clamping plate 22. The second guide rod 24 and the limiting block 241 constitute a reliable anti-detachment limiting mechanism, ensuring that the floating plate 23 has sufficient buffer stroke while effectively preventing it from accidentally falling off under the rebound action of the spring 232.

[0031] Working principle: The forklift places the pallet 5 unloaded from the truck onto the steering wheel 41. The pallet 5, through its bottom positioning hole 51 and the positioning post 411 on the steering wheel 41, achieves rapid and precise positioning under the observer's command. Initially, the two clamping components 2 are in the open position driven by the electric cylinder 111. When the pallet 5 is in place, the electric cylinder 111 is activated, pushing one clamping component 2 to move. In conjunction with the rotation of the turntable 31 in the linkage component 3, the turntable 31 drives the other clamping component 2 to move via the linkage rod 32. Thus, the two clamping components 2 move synchronously towards each other along the slide rail 121 at the bottom of the upper plate 12, causing the floating plate 23 on the clamping plate 22 to gradually contact the side of the goods. At the moment of contact, the floating plate 23 generates a buffer stroke under the action of the spring 232 and the first guide rod 231, realizing flexible clamping and completing the automatic centering of the first set of opposite sides of the goods; then, the clamping component 2 returns to the initial state, the servo motor 42 starts, and drives the reversing plate 41 to rotate precisely ninety degrees, so that the pallet 5 and the goods on it turn around, so as to center the other two sides; the electric cylinder 111 acts again, repeating the above clamping process to achieve clamping and centering of the second set of opposite sides, ensuring that the goods are completely centered on the pallet 5 and have a regular posture; after the centering is completed, the clamping component 2 returns to its original position, the AGV drives in and lifts the pallet 5 and then carries the pallet 5 away to enter the next logistics link.

[0032] Although embodiments of the present invention have been shown and described, it will be understood by those skilled in the art that various changes, modifications, substitutions and alterations can be made to these embodiments without departing from the principles and spirit of the present invention, the scope of which is defined by the appended claims and their equivalents.

Claims

1. An automatic centering and clamping device for unloading goods, characterized in that: It includes a base plate (1), a support plate (11) for support on the top of the base plate (1), an upper plate (12) on the top of the support plate (11), two movable clamping components (2) on the upper plate (12), the two clamping components (2) can move towards each other, a groove (10) on the top of the base plate (1), a rotating component (4) is rotatably connected in the groove (10), a tray (5) can be placed on the top of the rotating component (4), a linkage component (3) is provided on the upper plate (12) and connected to the two clamping components (2) respectively, and an electric cylinder (111) for driving the clamping components (2) to move is installed on the support plate (11).

2. The automatic centering and clamping device for unloading goods according to claim 1, characterized in that: The top of the base plate (1) is flush with the ground. The rotating assembly (4) includes a commutator (41) that rotates in a groove (10) and a servo motor (42) that drives the commutator (41) at the bottom of the base plate (1). There is a recess on the ground to avoid the servo motor (42).

3. The automatic centering and clamping device for unloading goods according to claim 2, characterized in that: The clamping assembly (2) is slidably connected to the bottom of the upper plate (12), and the linkage assembly (3) includes a turntable (31) rotatably connected to the bottom of the upper plate (12). Two linkage rods (32) are rotatably connected to the turntable (31), and the linkage rods (32) are rotatably connected to the clamping assembly (2).

4. The automatic centering and clamping device for unloading goods according to claim 3, characterized in that: The bottom of the upper plate (12) is provided with a slide rail (121), and the clamping assembly (2) includes a slider (21) that is slidably connected to the slide rail (121), and a clamping plate (22) is installed below the slider (21).

5. The automatic centering and clamping device for unloading goods according to claim 4, characterized in that: The top of the steering wheel (41) is provided with a positioning post (411), and the tray (5) is provided with a positioning hole (51) corresponding to the positioning post (411).

6. The automatic centering and clamping device for unloading goods according to claim 5, characterized in that: A floating plate (23) is floatingly connected to the clamping plate (22), and the floating plate (23) is used to prevent the clamping plate (22) from making hard contact with the unloaded goods.

7. The automatic centering and clamping device for unloading goods according to claim 6, characterized in that: The floating plate (23) is provided with a first guide rod (231), the clamping plate (22) is provided with a screw hole (220), a screw rod (25) is screwed on the screw hole (220), the screw rod (25) is provided with a through hole (250), the first guide rod (231) can pass through the through hole (250), a spring (232) is sleeved on the first guide rod (231), and the screw rod (25) can compress the spring (232).

8. The automatic centering and clamping device for unloading cargo according to claim 7, characterized in that: A second guide rod (24) is spirally connected to the floating plate (23) and passes through the clamping plate (22). A limiting block (241) is provided on the second guide rod (24) to prevent the floating plate (23) from separating from the clamping plate (22).

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