A load carriage unit for a transfer robot

Abstract

The utility model belongs to the transfer robot technical field, concretely relates to a kind of transfer robot's bearing bracket unit, including AGV car, and the vertical frame is fixedly arranged on AGV car, and the vertical frame rotatably connects the one end of connecting rod two, and the oil cylinder rotatably connects connecting rod one, and connecting rod one is rotatably installed on the vertical frame, and connecting rod one and connecting rod two rotatably connect support frame, and the vertical frame, connecting rod one, connecting rod two, support frame form parallelogram linkage structure, support frame is arranged at the both sides of support plate and is fixedly connected support plate, and the surface of support plate is parallel to the axial direction of the pin shaft of oil cylinder and is bent into shape with multiple reinforcing ribs. The parallelogram linkage structure formed by the vertical frame, connecting rod one, connecting rod two and support frame can place support plate on the ground under the telescopic drive of oil cylinder, or make the top surface of support plate flush with the mesa of AGV car, so as to facilitate the loading and unloading transfer of material on AGV car, effectively improve the pick-and-place efficiency and pick-and-place safety of material.

Description

Technical Field

[0001] This utility model belongs to the field of transfer robot technology, specifically relating to a carrier bracket unit for a transfer robot. Background Technology

[0002] In smart manufacturing, warehousing and logistics, and production workshops, AGV (Automated Guided Vehicle) transfer robots are the core equipment for realizing automated material handling. As the component that comes into direct contact with the material, its load-bearing bracket unit must meet three core requirements: "efficient loading and unloading", "stable support" and "safe operation". It must be able to easily dock with the ground, shelves or other equipment to achieve rapid material transfer, maintain structural stability during the material carrying process to prevent the material from tilting or falling, and precisely control the lifting stroke to prevent excessive movement that could cause equipment damage or safety accidents.

[0003] The current mainstream AGV transfer robot's carrying rack unit suffers from difficulties in material loading and unloading docking and low retrieval efficiency. Existing AGV carrying racks mostly adopt a fixed-height rack or a simple lifting rack design: the top surface of the fixed-height rack is flush with the AGV platform, which can stably support materials, but cannot directly dock with the ground. When materials need to be retrieved or placed from the ground, manual assistance is required using forklifts, pallet trucks, or other auxiliary equipment to lift / lower the materials to the rack height, which not only increases labor costs but also leads to excessively long single retrieval and placement times, resulting in low production efficiency. Utility Model Content

[0004] To address the above problems, the purpose of this utility model is to provide a carrier bracket unit for a transfer robot, which solves the problems of fixed transport height, difficulty in accurately docking shelves and the ground with the AGV platform, and low retrieval and placement efficiency of existing AGV transfer robots.

[0005] To achieve the above objectives, the present invention adopts the following technical solution: a carrier bracket unit for a transfer robot, comprising an AGV trolley, a vertical frame fixedly mounted on the AGV trolley, the vertical frame being rotatably connected to one end of a hydraulic cylinder and a second connecting rod via a pin, the other end of the hydraulic cylinder being rotatably connected to one end of a first connecting rod via a pin, the first connecting rod being rotatably mounted on the vertical frame, and the other ends of the first and second connecting rods being rotatably connected to a support frame via pins, wherein the vertical frame, the first connecting rod, the second connecting rod, and the support frame form a parallelogram linkage structure, the support frame being disposed on both sides of a pallet and fixedly connected to the pallet, and the surface of the pallet being bent and formed with multiple reinforcing ribs parallel to the axial direction of the pin of the hydraulic cylinder.

[0006] The beneficial effects of this utility model are as follows: the parallelogram linkage structure composed of the upright frame, connecting rod one, connecting rod two, and support frame can place the pallet flat on the ground or make the top surface of the pallet flush with the platform of the AGV trolley under the extension and retraction drive of the oil cylinder, thereby facilitating the loading, unloading and transfer of materials on the AGV trolley and effectively improving the efficiency and safety of material handling.

[0007] In order to effectively improve the support strength of the pallet by strengthening the use of ribs; As a further improvement to the above technical solution: the reinforcing rib has a V-shaped groove structure, and the reinforcing rib is bent downwards towards the support plate.

[0008] The beneficial effects of this improvement are: the addition of reinforced ribs can effectively improve the bending strength of the pallet, so that when the two sides of the pallet are lifted by the support frame, the middle position can maintain effective strength, thereby stably supporting the transported materials.

[0009] To facilitate the transfer of materials on the pallet; As a further improvement to the above technical solution: the front and rear sides of the pallet are bent downward to form inclined plates, and the bottom end of the inclined plates is flush with the bottom end of the reinforcing ribs.

[0010] The beneficial effect of this improvement is that materials can slide along the inclined plate and be conveniently pushed from the ground or AGV to the pallet.

[0011] To ensure safe lifting and lowering of this bracket; As a further improvement to the above technical solution: micro switch one and micro switch two are installed on the upright frame. When the bottom end of the inclined plate is on the same plane as the bottom end of the AGV trolley, the contact of micro switch one is squeezed by the connecting rod two to close the circuit. When the bottom end of the inclined plate is on the same plane as the top surface of the AGV trolley, the contact of micro switch two is squeezed by the connecting rod one to close the circuit. Micro switch one, micro switch two and the oil circuit solenoid valve of the oil cylinder are electrically connected to the controller.

[0012] The beneficial effects of this improvement are as follows: when the contacts of micro switch one and micro switch two are squeezed by connecting rod two and connecting rod one respectively, the circuit is closed, and the hydraulic cylinder is stopped from extending and retracting in time. This not only ensures the safety of the bracket operation, but also enables the pallet to move accurately to the required position for picking up and putting down materials.

[0013] To further improve the structural stability of the bracket; As a further improvement to the above technical solution: a reinforcing crossbar is connected between the tops of the two support frames.

[0014] The beneficial effects of this improvement are: the reinforced crossbars provide reinforcement, effectively ensuring the stability of the support frame and tray as a frame structure.

[0015] In order to effectively improve the structural strength of the support frame; As a further improvement to the above technical solution: the lower side of the support frame has an L-shaped rod structure, and the two ends of the L-shaped rod are connected by diagonal rods.

[0016] The beneficial effects of this improvement are: the diagonal brace can effectively improve the structural strength of the support frame and ensure the stability of the support frame in supporting the pallet.

[0017] The parts of the device not covered herein are the same as or can be implemented using existing technologies. Attached Figure Description

[0018] Figure 1 This is a schematic diagram of the structure of the present invention. Figure 1 ; Figure 2 This is a schematic diagram of the structure of the present invention. Figure 2 ; Figure 3 The present invention removes the front view of the AGV trolley. Figure 1 ; Figure 4 The present invention removes the front view of the AGV trolley. Figure 2 ; Figure 5 This is a schematic diagram of the structure of the tray in this utility model; In the diagram: 1. AGV trolley; 2. Frame; 3. Controller; 4. Hydraulic cylinder; 5. Connecting rod one; 6. Connecting rod two; 7. Support frame; 71. Diagonal bar; 8. Support plate; 81. Reinforcing rib; 82. Diagonal plate; 9. Micro switch one; 10. Micro switch two; 11. Reinforcing crossbar. Detailed Implementation

[0019] To enable those skilled in the art to better understand the technical solution of the present invention, the present invention will be described in detail below with reference to the accompanying drawings. The description in this part is only exemplary and explanatory, and should not be used to limit the scope of protection of the present invention in any way.

[0020] Example 1: like Figure 1As shown in Figure 5: A carrier unit for a transfer robot includes an AGV trolley 1. A support frame 2 is fixedly mounted on the AGV trolley 1. The support frame 2 is rotatably connected to one end of a hydraulic cylinder 4 and a connecting rod 6 via a pin. The other end of the hydraulic cylinder 4 is rotatably connected to one end of a connecting rod 5 via a pin. The connecting rod 5 is rotatably mounted on the support frame 2. The other ends of the connecting rod 5 and the connecting rod 6 are rotatably connected to a support frame 7 via pins. The support frame 2, connecting rod 5, connecting rod 6, and support frame 7 form a parallelogram linkage structure. The support frame 7 is disposed on both sides of a pallet 8 and fixedly connected to the pallet 8. The surface of the pallet 8 is bent parallel to the axial direction of the pin of the hydraulic cylinder 4 to form multiple... The parallelogram linkage structure, consisting of reinforcing ribs 81, upright frame 2, connecting rod 1 5, connecting rod 2 6, and support frame 7, can, under the extension and retraction drive of hydraulic cylinder 4, place pallet 8 flat on the ground or make the top surface of pallet 8 flush with the platform of AGV trolley 1. This facilitates the loading, unloading, and transfer of materials on AGV trolley 1, effectively improving material handling efficiency and safety. The reinforcing ribs 81 have a V-shaped groove structure and are bent downwards towards the pallet 8. The reinforcing ribs 81 effectively improve the bending strength of pallet 8, ensuring that the middle part of pallet 8 maintains effective strength when lifted by support frame 7, thus stably supporting the transferred materials. The front and rear sides are bent downwards to form inclined plates 82. The bottom end of the inclined plate 82 is flush with the bottom end of the reinforcing rib 81, allowing materials to slide along the inclined plate 82 and be easily pushed from the ground or AGV trolley 1 onto the pallet 8. The upright frame 2 is equipped with micro switch 9 and micro switch 10. When the bottom end of the inclined plate 82 is on the same plane as the bottom end of the AGV trolley 1, the contact of micro switch 9 is pressed by connecting rod 6 to close the circuit. When the bottom end of the inclined plate 82 is on the same plane as the top surface of the AGV trolley 1, the contact of micro switch 10 is pressed by connecting rod 5 to close the circuit. The micro switches 9 and 10, as well as the solenoid valve of the hydraulic cylinder 4, are also included. When the contacts of the electrical connection controller 3, micro switch 9, and micro switch 10 are squeezed by connecting rod 6 and connecting rod 5 respectively, the circuit is closed, and the hydraulic cylinder 4 is stopped from extending and retracting in time. This ensures the safety of the bracket operation and allows the pallet 8 to move accurately to the required position for material handling. A reinforcing crossbar 11 is connected between the tops of the two support frames 7. The reinforcing crossbar 11 plays a reinforcing role and effectively ensures the stability of the support frame 7 and pallet 8 as a frame structure. The lower side of the support frame 7 has an L-shaped rod structure, and the two ends of the L-shaped rod are connected by a diagonal bar 71. The diagonal bar 71 can effectively improve the structural strength of the support frame 7 and ensure the stability of the support frame 7 in supporting the pallet 8.

[0021] The working principle of this technical solution is as follows: the AGV is moved to the front of the ground material through the navigation system of the AGV car 1, ensuring that the inclined plate 82 of the pallet 8 faces the material and the center line of the pallet 8 is aligned with the center line of the material, so as to avoid the material from deviating when pushing. When the AGV human-machine interface clicks "ground material pickup", the controller 3 sends a retraction signal to the solenoid valve of the hydraulic cylinder 4. The piston rod of the hydraulic cylinder 4 retracts, driving the connecting rod 5 to rotate around the pin of the upright 2. The parallelogram linkage structure moves synchronously, and the pallet 8 remains horizontal and descends slowly. When the bottom of the inclined plate 82 of the pallet 8 touches the ground, the connecting rod 6 presses the micro switch 9. The switch sends a signal to the lowered position, and the controller 3 controls the hydraulic cylinder 4 to stop. At this time, the top surface of the pallet 8 and the ground smoothly transition through the inclined plate 82. Materials are manually or via conveyor belt pushed along inclined plate 82 to the center of pallet 8, ensuring the center of gravity of the materials coincides with the center of pallet 8. After the materials are placed in place, the AGV human-machine interface is clicked to raise the pallet to the same level. Controller 3 sends an extension signal to the solenoid valve of hydraulic cylinder 4, causing the piston rod of hydraulic cylinder 4 to extend and push connecting rod 5 to rotate. The parallelogram linkage structure drives pallet 8 to rise horizontally. When the top surface of pallet 8 is flush with the AGV platform, connecting rod 5 presses micro switch 10, which sends a raised-to-position signal, stopping hydraulic cylinder 4. At this point, the materials can be smoothly transferred between pallet 8 and the AGV platform. A target location, such as a shelf or production station, is set on the AGV human-machine interface. AGV 1 starts its navigation system and automatically travels along the preset path. During travel, the crossbar 11 and inclined bar 71 are reinforced to ensure the stability of the support frame 7 and prevent lateral swaying of the materials. V-shaped reinforcing ribs 81 prevent the materials from sliding due to the inertia of the AGV's start and stop. When the AGV trolley 1 arrives at the target location, such as a shelf or receiving platform, if the target location is on the ground, repeat the tray lowering step in the ground material picking process to lower the tray 8 to the ground, and then manually or with equipment push the material down along the inclined plate 82. If the target location is a shelf / receiving platform that is flush with the AGV platform, there is no need to adjust the tray height; the material can be directly pushed from the tray 8 to the target platform.

[0022] It should be noted that, in this document, the terms “comprising,” “including,” or any other variations thereof are intended to cover non-exclusive inclusion, such that a process, method, article, or apparatus that comprises a list of elements includes not only those elements but also other elements not expressly listed, or elements inherent to such process, method, article, or apparatus.

[0023] This article uses specific examples to illustrate the principles and implementation methods of the present invention. The above examples are only for the purpose of helping to understand the method and core ideas of the present invention. The above descriptions are only preferred embodiments of the present invention. It should be noted that due to the limitations of textual expression, there are objectively infinite specific structures. For those skilled in the art, several improvements, modifications, or changes can be made without departing from the principles of the present invention, and the above technical features can also be combined in an appropriate manner. These improvements, modifications, changes, or combinations, or the direct application of the inventive concept and technical solution to other situations without modification, should all be considered within the scope of protection of the present invention.

Claims

1. A carrier unit for a transfer robot, characterized in that: The AGV includes an AGV trolley (1), on which a frame (2) is fixedly mounted. The frame (2) is rotatably connected to one end of a hydraulic cylinder (4) and a connecting rod (6) via a pin. The other end of the hydraulic cylinder (4) is rotatably connected to one end of a connecting rod (5) via a pin. The connecting rod (5) is rotatably mounted on the frame (2). The other ends of the connecting rod (5) and the connecting rod (6) are rotatably connected to a support frame (7) via a pin. The frame (2), the connecting rod (5), the connecting rod (6), and the support frame (7) form a parallelogram linkage structure. The support frame (7) is set on both sides of a pallet (8) and is fixedly connected to the pallet (8). The surface of the pallet (8) is parallel to the axial direction of the pin of the hydraulic cylinder (4) and is bent into multiple reinforcing ribs (81).

2. The carrier unit of a transfer robot according to claim 1, characterized in that: The reinforcing rib (81) has a V-shaped groove structure and is bent downwards towards the support plate (8).

3. The carrier bracket unit of a transfer robot according to claim 1, characterized in that: The front and rear sides of the pallet (8) are bent downward to form inclined plates (82), and the bottom end of the inclined plates (82) is flush with the bottom end of the reinforcing ribs (81).

4. The carrier unit of a transfer robot according to claim 3, characterized in that: Microswitch 1 (9) and microswitch 2 (10) are installed on the stand (2). When the bottom end of the inclined plate (82) is on the same plane as the bottom end of the AGV trolley (1), the contact of microswitch 1 (9) is squeezed by the connecting rod 2 (6) to close the circuit. When the bottom end of the inclined plate (82) is on the same plane as the top surface of the AGV trolley (1), the contact of microswitch 2 (10) is squeezed by the connecting rod 1 (5) to close the circuit. Microswitch 1 (9), microswitch 2 (10) and the oil circuit solenoid valve of the oil cylinder (4) are electrically connected to the controller (3).

5. The carrier bracket unit of a transfer robot according to claim 1, characterized in that: A reinforcing crossbar (11) is connected between the tops of the two support frames (7).

6. The carrier bracket unit of a transfer robot according to claim 1, characterized in that: The lower side of the support frame (7) has an L-shaped rod structure, and the two ends of the L-shaped rod are connected by a diagonal rod (71).

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