Mechanical connecting structure and guide conveying device

By setting up a rotatable and retractable connecting rod mechanism and multiple fixed connection bases on the AGV, a modular design of the AGV is achieved, which solves the manufacturing complexity and space occupancy problems of large-size AGVs in the aerospace field and improves the versatility and flexibility of the equipment.

CN120646107APending Publication Date: 2025-09-16HUAXIAO PRECISION IND (ZHEJIANG) CO LTD
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Patent Information

Application Number
CN202510923418.8
Authority / Receiving Office
CN · China
Patent Type
Applications(China)
Current Assignee / Owner
Filing Date
2025-07-04
Publication Date
2025-09-16

AI Technical Summary

Technical Problem

Existing large-size AGVs in the aerospace field are complex to manufacture, occupy a large space, have poor versatility and flexibility, and are difficult to adapt to the needs of aerospace products of different sizes and shapes.

Method used

A fixed connection base and a connecting rod mechanism that can rotate relative to each other and can be telescopically adjusted along the length direction are used to achieve a modular design of the mechanical connection structure. Vehicles can be assembled and disassembled by arranging multiple fixed connection bases on the automatic guided vehicle and using a rotatable and telescopic connecting rod mechanism.

Benefits of technology

The structure is simplified, the occupied space is reduced, the layout flexibility and adaptability of the equipment are improved, and it can be quickly adjusted according to operational requirements, which broadens the scope of application and scalability of the device.

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Abstract

The invention relates to the technical field of conveying equipment, and discloses a mechanical connecting mechanism and a guiding conveying device.The mechanical connecting structure comprises a fixed connecting base and a connecting rod mechanism; by arranging the connecting rod mechanism which is fixedly connected with the base and can rotate relatively and be telescopically adjusted in the length direction, the structure simplification and modular design are achieved. The fixed connection base can be installed on an automatic guiding vehicle and can be flexibly configured in different scenes, and the universality and adaptability of mechanical connection are improved; the connecting rod mechanism is rotationally matched with the connecting part and is adjusted in length, so that the overall structure is smaller in occupied space while the connecting strength is guaranteed, the working state can be flexibly adjusted conveniently according to operation requirements, the arrangement difficulty of the large guiding and conveying device is reduced, the installation space is saved, and the vehicle layout structure is optimized; and the arrangement flexibility and adaptability of equipment are improved.
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Description

Technical Field

[0001] The present invention relates to the technical field of conveying equipment, and in particular to a mechanical connection mechanism and a guiding conveying device. Background Art

[0002] AGVs (Automated Guided Vehicles), a key piece of equipment for automating material handling in factories and warehouses, have been widely used in a variety of fields. Existing AGVs typically offer advantages such as automated navigation, efficient handling, and flexible scheduling, effectively improving material handling efficiency and reducing labor costs. However, in the aerospace sector, due to the large size and complex structure of aerospace products, existing technologies typically require the use of a single large-scale AGV to transport them.

[0003] However, existing large-scale AGVs have certain limitations in actual manufacturing and transportation. On the one hand, the manufacturing process of large-scale AGVs is complex, requiring high production space and manufacturing equipment, which increases manufacturing costs. On the other hand, large-scale AGVs are relatively bulky, making transportation and installation inconvenient. They also occupy a large space when not in operation, resulting in limited flexibility. Furthermore, existing large-scale AGVs often lack the flexibility to adapt to aerospace products of varying sizes and shapes, making it difficult to quickly adjust to changes in the size of the transported products, resulting in poor applicability. Summary of the Invention

[0004] In view of this, the present invention provides a mechanical connection mechanism and a guide conveying device to solve the problems of large-scale guide conveying devices in the prior art, such as complex structure, large space occupation, poor versatility and flexibility.

[0005] In order to solve the above technical problems, the technical solutions of the present invention are as follows:

[0006] In the first aspect, the present invention provides a mechanical connection structure, comprising: a fixed connection base and a connecting rod mechanism; the fixed connection base can be fixed on an automatic guided vehicle, and the fixed connection base is provided with at least one connecting portion; the end of the connecting rod mechanism can be connected to the connecting portion, and the connecting rod mechanism can rotate relative to the connecting portion; the connecting rod mechanism can be telescopically adjusted along its length direction.

[0007] It has the following advantages:

[0008] The mechanical connection structure provided by the present invention achieves a simplified and modular design by providing a fixed connection base and a connecting rod mechanism that can rotate relative to each other and be telescopically adjustable along its length. The fixed connection base can be installed on an automated guided vehicle and flexibly configured in different scenarios, improving the versatility and adaptability of the mechanical connection. The connecting rod mechanism, through rotational coordination with the connecting part and adjustable length, ensures that the overall structure takes up less space while maintaining connection strength. This facilitates flexible adjustment of the operating state according to operational requirements, reduces the difficulty of arranging large guided conveying devices, helps save installation space, optimizes the vehicle layout structure, and improves the flexibility and adaptability of equipment layout.

[0009] According to an embodiment of the first aspect of the present invention, the connecting rod mechanism includes a connecting rod, at least two articulated connecting rods and at least two locking joints, the first ends of the two articulated connecting rods are respectively connected to the two ends of the connecting rod through the two locking joints, the second end of the articulated connecting rod is provided with a connecting hole, the connecting part is hinged to the connecting hole, and the locking joint rotates to adjust the length parameters of the connecting rod mechanism.

[0010] According to an embodiment of the first aspect of the present invention, the fixed connection base includes a mounting base and a connecting portion, the connecting portion is arranged on the mounting base, the connecting portion includes a first horizontal plate, a first vertical plate and a second horizontal plate arranged in sequence, the first vertical plate is connected to the side of the mounting base, the first horizontal plate and the second horizontal plate are respectively arranged at the two ends of the first vertical plate and are arranged opposite to each other, the connecting portion also includes a hinge rod, the second end of the joint link is located between the first horizontal plate and the second horizontal plate, the hinge rod is passed through the first horizontal plate, the connecting hole and the second horizontal plate, so as to be suitable for hingedly connecting the joint link to the connecting portion.

[0011] According to an embodiment of the first aspect of the present invention, a first mounting hole is provided on the side of the mounting base, a second mounting hole is provided on the first vertical plate, and fasteners are passed through the first mounting hole and the second mounting hole to be suitable for fixing the connecting part to the side of the mounting base; a third mounting hole is provided on the first horizontal plate, and a fourth mounting hole is provided on the second horizontal plate, the third mounting hole and the fourth mounting hole are coaxially arranged, and the hinge rod is passed through the third mounting hole, the connecting hole and the fourth mounting hole to be suitable for hingedly connecting the joint link and the connecting part.

[0012] According to an embodiment of the first aspect of the present invention, the mounting base is a cubic structure, and the connecting portion is detachably connected to the mounting base.

[0013] According to an embodiment of the first aspect of the present invention, a spherical bearing is provided in the connecting hole.

[0014] In the second aspect, the present invention also provides a guided conveying device, comprising: a plurality of automatic guided vehicles and the mechanical connection structure; the mechanical connection structure comprises a fixed connection base and a connecting rod mechanism, and there are multiple fixed connection bases, and the fixed connection base is arranged on the upper surface of the automatic guided vehicle; the two ends of the connecting rod mechanism are respectively connected to any one of the fixed connection bases located on the two automatic guided vehicles.

[0015] It has the following advantages:

[0016] The guided conveying device provided by the present invention provides multiple fixed connection bases on several automatic guided vehicles, and utilizes a rotatable and retractable connecting rod mechanism to flexibly connect multiple automatic guided vehicles. This allows for rapid assembly and disassembly of vehicles according to different operating scenarios, thereby significantly improving the modularity and flexibility of the conveying device. On the one hand, the provision of multiple fixed connection bases allows for a more diverse layout of connection points, meeting the requirements of different queues and vehicle formations of different forms, broadening the scope of application of the device. On the other hand, the two ends of the connecting rod mechanism are respectively connected to the fixed connection bases on different vehicles. The relative rotation of the connection parts and the adjustability of the connecting rod length ensure that the vehicle has good adaptability when turning, changing direction, or passing through narrow spaces, avoiding movement restrictions caused by excessive structural rigidity.

[0017] Compared to existing large-scale guided conveying devices, the present invention offers a simpler structural design, flexible connection methods, and convenient assembly and disassembly. The number of vehicles and the formation of vehicles can be quickly adjusted according to actual conveying needs, effectively reducing the space occupied and improving the versatility and scalability of the device. Therefore, the present invention overcomes the shortcomings of existing technologies, such as complex structures, large space requirements, and poor versatility and flexibility, and offers advantages such as simple structure, easy installation, flexible assembly, and strong adaptability.

[0018] According to an embodiment of the second aspect of the present invention, two adjacent automatic guided vehicles are connected by at least three of the connecting rod mechanisms, and the two adjacent connecting rod mechanisms are arranged at an angle. BRIEF DESCRIPTION OF THE DRAWINGS

[0019] In order to more clearly illustrate the specific embodiments of the present invention or the technical solutions in the prior art, the following briefly introduces the drawings required for use in the specific embodiments or the description of the prior art. Obviously, the drawings described below are some embodiments of the present invention. For ordinary technicians in this field, other drawings can be obtained based on these drawings without paying any creative work.

[0020] Figure 1 A top view of a guide conveying device provided in an embodiment of the second aspect of the present invention;

[0021] Figure 2 This is an axial view of a guide conveying device provided in an embodiment of the second aspect of the present invention;

[0022] Figure 3 for Figure 2 A partial enlarged schematic diagram;

[0023] Figure 4 This is a schematic structural diagram of the connecting rod mechanism provided in an embodiment of the first aspect of the present invention.

[0024] Description of reference numerals:

[0025] 1. Automatic guided vehicle; 2. Mechanical connection structure; 21. Connecting rod mechanism; 22. Fixed connection base; 211. Connecting rod; 212. Locking joint; 213. Joint connecting rod; 221. Mounting base; 222. Connecting part. DETAILED DESCRIPTION

[0026] To make the purpose, technical solutions, and advantages of the embodiments of the present invention more clear, the technical solutions in the embodiments of the present invention will be clearly and completely described below in conjunction with the accompanying drawings in the embodiments of the present invention. Obviously, the described embodiments are 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 those skilled in the art without making creative efforts shall fall within the scope of protection of the present invention.

[0027] In the description of the present invention, it should be noted that the terms "center," "upper," "lower," "left," "right," "vertical," "horizontal," "inner," and "outer," etc., indicating orientations or positional relationships, are based on the orientations or positional relationships shown in the accompanying drawings and are intended solely to facilitate and simplify the description of the present invention. They are not intended to indicate or imply that the devices or components referred to must have, be constructed, or operate in a specific orientation, and therefore should not be construed as limitations on the present invention. Furthermore, the terms "first," "second," and "third" are used for descriptive purposes only and should not be construed as indicating or implying relative importance.

[0028] In the description of the present invention, it should be noted that, unless otherwise expressly specified or limited, the terms "mounted," "connected," and "connected" should be understood in a broad sense. For example, they may refer to fixed, detachable, or integral connections; mechanical or electrical connections; direct or indirect connections through an intermediate medium; and internal communication between two components. Those skilled in the art will understand the specific meanings of the above terms in the present invention based on the specific circumstances.

[0029] In addition, the technical features involved in the different embodiments of the present invention described below can be combined with each other as long as they do not conflict with each other.

[0030] Reference Figure 1 and Figure 2 As shown, in the first aspect of the present invention, the present invention provides a mechanical connection structure 2, including: a fixed connection base 22 and a connecting rod mechanism 21; the fixed connection base 22 can be fixed on the automatic guided vehicle 1, and the fixed connection base 22 is provided with at least one connecting portion 222; the end of the connecting rod mechanism 21 can be connected to the connecting portion 222, and the connecting rod mechanism 21 can rotate relative to the connecting portion 222; the connecting rod mechanism can be telescopically adjusted along its length direction.

[0031] Specifically, the mechanical connection structure 2 provided by the present invention achieves a simplified and modular design by providing a fixed connection base 22 and a connecting rod mechanism 21 that can rotate relative to each other and is telescopically adjustable along its length. The fixed connection base 22 can be installed on the automated guided vehicle 1, allowing for flexible configuration in different scenarios, thereby enhancing the versatility and adaptability of the mechanical connection. The connecting rod mechanism 21, through its rotational coordination with the connecting portion 222 and its adjustable length, ensures that the overall structure maintains connection strength while occupying a smaller space. This facilitates flexible adjustment of the operating state according to operational requirements, reduces the difficulty of arranging large guided conveying devices, helps save installation space, optimizes the vehicle layout structure, and enhances the flexibility and adaptability of the equipment.

[0032] Reference Figure 4 As shown, in the embodiment of the first aspect of the present invention, the connecting rod mechanism 21 includes a connecting rod 211, at least two joint connecting rods 213 and at least two locking joints 212, the first ends of the two joint connecting rods 213 are respectively connected to the two ends of the connecting rod 211 through two locking joints 212, the second end of the joint connecting rod 213 is provided with a connecting hole, the connecting part 222 is hinged to the connecting hole, and the locking joint 212 rotates to adjust the length parameters of the connecting rod mechanism.

[0033] Specifically, the linkage mechanism 21 comprises a connecting rod 211, at least two articulated links 213, and at least two locking joints 212. The first ends of the two articulated links 213 are rotatably connected to the ends of the connecting rod 211 via the locking joints 212. The second ends of the articulated links 213 are provided with connection holes, which are hingedly connected to the connection portion 222 of the fixed connection base 22. To ensure flexibility, the locking joints 212 are adjustable while connected, allowing the linkage mechanism 211 to be extended and retracted along its length to accommodate different distance requirements between vehicles.

[0034] Reference Figure 3As shown, in the embodiment of the first aspect of the present invention, the fixed connection base 22 includes a mounting base 221 and a connecting portion 222, and the connecting portion 222 is arranged on the mounting base 221. The connecting portion 222 includes a first horizontal plate, a first vertical plate and a second horizontal plate which are connected in sequence. The first vertical plate is connected to the side of the mounting base, and the first horizontal plate and the second horizontal plate are respectively arranged at both ends of the first vertical plate and are arranged opposite to each other. The connecting portion 222 also includes a hinge rod, and the second end of the joint link 213 is located between the first horizontal plate and the second horizontal plate. The hinge rod is passed through the first horizontal plate, the connecting hole and the second horizontal plate to be suitable for hingedly connecting the joint link 213 to the connecting portion 222.

[0035] In the embodiment of the first aspect of the present invention, a first mounting hole is provided on the side of the mounting base 221, a second mounting hole is provided on the first vertical plate, and fasteners are passed through the first mounting hole and the second mounting hole to be suitable for fixing the connecting part 222 to the side of the mounting base; a third mounting hole is provided on the first horizontal plate, and a fourth mounting hole is provided on the second horizontal plate. The third mounting hole and the fourth mounting hole are coaxially arranged, and the hinge rod is passed through the third mounting hole, the connecting hole and the fourth mounting hole to be suitable for hingedly connecting the joint link 213 and the connecting part 222.

[0036] According to the first embodiment of the present invention, the mounting base 221 has a cubic structure, and the connecting portion 222 is detachably connected to the mounting base 221 .

[0037] Specifically, the fixed connection base 22 can be fixedly mounted on the upper surface of the automated guided vehicle 1. The fixed connection base 22 has at least one connecting portion 222 for connecting to the end of the connecting rod mechanism 21. Preferably, the fixed connection base 22 includes a mounting base 221 and a connecting portion 222. The connecting portion 222 is fixedly mounted on the mounting base 221. The mounting base 221 has a square structure to facilitate stable fixation to the vehicle surface.

[0038] The connecting portion 222 preferably includes a first horizontal plate, a first vertical plate, and a second horizontal plate, which are sequentially connected. The side of the first vertical plate is fixedly connected to the side wall of the mounting base 221 via fasteners. The first and second horizontal plates are respectively disposed at the upper and lower ends of the first vertical plate and arranged opposite each other to form a stable connection structure. The first and second horizontal plates are respectively provided with a third and fourth mounting holes, which are coaxially arranged and are used to insert a hinge rod to achieve a rotational connection of the connecting rod.

[0039] In an embodiment of the first aspect of the present invention, a spherical bearing is provided in the connecting hole.

[0040] Specifically, the articulated rod is a hinged rod that passes through the third mounting hole, the connecting hole, and the fourth mounting hole, ensuring flexible rotation between the articulated link 213 and the connecting portion 222 and a secure and reliable connection. To further reduce friction and rotational resistance at the connection, an articulated bearing is preferably provided in the connecting hole. The articulated bearing can absorb some radial and axial loads to compensate for minor posture changes caused by uneven ground conditions between the two automated guided vehicles 1, thereby extending the service life of the connection structure.

[0041] Reference Figure 2 As shown, in the second aspect, the present invention also provides a guided conveying device, including: a plurality of automatic guided vehicles 1 and a mechanical connection structure 2; the mechanical connection structure 2 includes a fixed connection base 22 and a connecting rod mechanism 21, and there are multiple fixed connection bases 22, and the fixed connection base 22 is arranged on the upper surface of the automatic guided vehicle 1; the two ends of the connecting rod mechanism 21 are respectively connected to any fixed connection base 22 located on the two automatic guided vehicles 1.

[0042] Specifically, the guided conveying device provided by the present invention provides multiple fixed connection bases 22 on a number of automated guided vehicles 1, and utilizes a rotatable and retractable connecting rod mechanism 21 to flexibly connect multiple automated guided vehicles 1. This allows for rapid assembly and disassembly of the vehicles according to different operating scenarios, thereby significantly improving the modularity and flexibility of the conveying device. On the one hand, the provision of multiple fixed connection bases 22 allows for a more diverse layout of connection points, meeting the requirements of different queues and different forms of vehicle formations, and broadening the scope of application of the device. On the other hand, the two ends of the connecting rod mechanism 21 are respectively connected to the fixed connection bases 22 on different vehicles. The relative rotation of the connecting portion 222 and the adjustability of the connecting rod length ensure that the vehicle has good adaptability when turning, changing direction, or passing through narrow spaces, avoiding movement restrictions caused by excessive structural rigidity.

[0043] Compared to existing large-scale guided conveying devices, the present invention boasts a simpler structural design, flexible connection methods, and convenient assembly and disassembly. The number of vehicles and the formation of vehicles can be quickly adjusted according to actual conveying needs, effectively reducing the space occupied and improving the versatility and scalability of the device. Therefore, the present invention overcomes the shortcomings of existing technologies, such as complex structures, large space requirements, and poor versatility and flexibility, and offers advantages such as simple structure, easy installation, flexible assembly, and strong adaptability.

[0044] In the second embodiment of the present invention, two adjacent automatic guided vehicles 1 are connected by at least three link mechanisms 21 , and the two adjacent link mechanisms 21 are arranged at an angle.

[0045] Specifically, the guided conveying device includes several automated guided vehicles 1 and the aforementioned mechanical connection structure 2. Each of the several automated guided vehicles 1 is provided with a plurality of fixed connection bases 22 on its upper surface. The vehicles are connected to each other via a plurality of linkage mechanisms 21, with each linkage mechanism 21 having two ends connected to fixed connection bases 22 on two adjacent automated guided vehicles 1. Preferably, at least three linkage mechanisms 21 are provided between two adjacent automated guided vehicles 1, and the linkage mechanisms 21 are arranged at a certain angle to enhance the stability and torsional resistance of the overall conveying device, thereby facilitating the vehicle queue to maintain alignment and prevent deviation during turning, climbing, and other operating conditions.

[0046] Through the optimized design of the above-mentioned structure, the present invention realizes the rapid connection and disassembly between the automatic guided vehicles 1, has good flexibility and scalability, effectively overcomes the defects of the existing large-scale guided conveying devices with complex structure, large space occupation and poor flexibility, and is suitable for material transportation, integrated handling and automated grouping operations in various scenarios.

[0047] Although the embodiments of the present invention have been described with reference to the accompanying drawings, those skilled in the art may make various modifications and variations without departing from the spirit and scope of the present invention. Such modifications and variations are all within the scope defined by the appended claims.

Claims

1. A mechanical connection structure, characterized in that: include: A fixed connection base (22) can be fixed on the automatic guided vehicle (1), and the fixed connection base (22) is provided with at least one connection portion (222); A connecting rod mechanism (21), wherein the end of the connecting rod mechanism (21) can be connected to the connecting portion (222), and the connecting rod mechanism (21) can rotate relatively around the connecting portion (222); and the connecting rod mechanism can be telescopically adjusted along its length direction.

2. The mechanical connection structure according to claim 1, characterized in that: The connecting rod mechanism (21) comprises a connecting rod (211), at least two joint connecting rods (213) and at least two locking joints (212), wherein the first ends of the two joint connecting rods (213) are respectively connected to the two ends of the connecting rod (211) through the two locking joints (212), the second end of the joint connecting rod (213) is provided with a connecting hole, the connecting portion (222) is hinged to the connecting hole, and the locking joint (212) rotates to be suitable for adjusting the length parameter of the connecting rod mechanism.

3. The mechanical connection structure according to claim 2, characterized in that: The fixed connection base (22) includes a mounting base (221) and a connecting portion (222), wherein the connecting portion (222) is arranged on the mounting base (221), and the connecting portion (222) includes a first horizontal plate, a first vertical plate, and a second horizontal plate which are arranged in sequence, wherein the first vertical plate is connected to the side of the mounting base, and the first horizontal plate and the second horizontal plate are respectively arranged at the two ends of the first vertical plate and are arranged opposite to each other, and the connecting portion (222) also includes a hinge rod, and the second end of the joint connecting rod (213) is located between the first horizontal plate and the second horizontal plate, and the hinge rod is passed through the first horizontal plate, the connecting hole and the second horizontal plate to be suitable for hinge-connecting the joint connecting rod (213) and the connecting portion (222).

4. The mechanical connection structure according to claim 3, characterized in that: The side surfaces of the mounting base (221) are each provided with a first mounting hole, the first vertical plate is provided with a second mounting hole, and fasteners are provided through the first mounting hole and the second mounting hole to be suitable for fixing the connecting portion (222) to the side surfaces of the mounting base; the first horizontal plate is provided with a third mounting hole, the second horizontal plate is provided with a fourth mounting hole, the third mounting hole and the fourth mounting hole are coaxially arranged, and the hinge rod is provided through the third mounting hole, the connecting hole and the fourth mounting hole to be suitable for hingedly connecting the joint link (213) and the connecting portion (222).

5. The mechanical connection structure according to claim 3, characterized in that: The mounting base (221) is a cubic structure, and the connecting portion (222) is detachably connected to the mounting base (221).

6. The mechanical connection structure according to claim 4, characterized in that: A spherical bearing is arranged in the connecting hole.

7. A guided conveying device, characterized in that: include: Several automated guided vehicles (1) and a mechanical connection structure (2) according to any one of claims 1 to 6; the mechanical connection structure (2) comprises a fixed connection base (22) and a connecting rod mechanism (21), a plurality of the fixed connection bases (22) are provided, and the fixed connection bases (22) are arranged on the upper surface of the automated guided vehicle (1); Both ends of the connecting rod mechanism (21) are respectively connected to any one of the fixed connection bases (22) located on the two automatic guided vehicles (1).

8. The guided conveying device according to claim 7, characterized in that: Two adjacent automatic guided vehicles (1) are connected via at least three link mechanisms (21), and the two adjacent link mechanisms (21) are arranged at an angle.