A lightweight mobile welding robot

By using an electric telescopic rod and a servo motor-driven clamping structure design, the problems of unstable clamping and low efficiency per station in traditional welding robots are solved, achieving efficient and stable welding operations and environmental improvement.

CN224424683UActive Publication Date: 2026-06-30SHENZHEN SHIWEI ROBOT CO LTD

Patent Information

Authority / Receiving Office
CN · China
Patent Type
Utility models(China)
Current Assignee / Owner
SHENZHEN SHIWEI ROBOT CO LTD
Filing Date
2025-06-25
Publication Date
2026-06-30

AI Technical Summary

Technical Problem

Traditional welding robots lack a stable support structure, which makes the sheet metal prone to shifting or vibration. The single-station operation mode results in low production efficiency, making it difficult to meet the demand for high-efficiency production.

Method used

The spacing between the lower clamping plates is adjusted by an electric telescopic rod, and the upper clamping plate is driven to rotate flexibly by a second servo motor. Combined with the rotary disk design, this enables flexible rotation of the clamping components and multi-station operation, ensuring welding stability and efficiency.

Benefits of technology

It improved welding quality and operational flexibility, shortened waiting time, significantly improved overall work efficiency, and improved the operating environment and safety.

✦ Generated by Eureka AI based on patent content.

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Abstract

This utility model relates to the field of welding robot technology and discloses a lightweight mobile welding robot, including a base. A first servo motor is disposed on one side of the base, and a gear is fitted onto the output end of the first servo motor. A gear ring is meshed with one side of the gear, and a rotating disk is fixedly connected inside the gear ring. Multiple clamping structures are disposed on the upper end of the rotating disk. In this utility model, the welding robot adjusts the spacing of the lower clamping plates via an electric telescopic rod and, in conjunction with a second servo motor, drives the upper clamping plates to rotate flexibly. This allows for stable clamping of plates of different sizes, ensuring welding stability and quality, and improving operational flexibility and adaptability. Simultaneously, the rotating disk design allows the clamping components to rotate flexibly, enabling simultaneous welding on one side while preparing the other, effectively avoiding the time consumption of sequential operation of single components, reducing waiting time, and significantly improving overall work efficiency.
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Description

Technical Field

[0001] This utility model relates to the field of welding robot technology, and in particular to a lightweight mobile welding robot. Background Technology

[0002] As the manufacturing industry accelerates its development at an unprecedented pace, industrial production processes are undergoing a profound transformation and upgrade. This rapid iteration is not only reflected in the ever-changing product designs but also in the relentless pursuit of efficiency, precision, and consistency in production processes. Particularly in the manufacturing and assembly of various metal structural components, welding, as a fundamental and crucial joining process, directly impacts the performance and cost of the final product. Therefore, against this backdrop, the demand for automated equipment capable of accurately, efficiently, and stably completing welding tasks—welding robots—is growing rapidly, even surging dramatically. To maintain a competitive edge in the fierce market, companies are increasingly inclined to adopt welding robots to replace traditional manual welding, addressing the demands of large-scale, standardized production, meeting high standards for welding quality, and enhancing the flexibility and intelligence of the overall production line.

[0003] However, traditional welding robots often lack a stable support structure during welding, causing the sheet metal to easily shift or vibrate, severely affecting welding quality and resulting in problems such as inaccurate positioning and weak welds. Furthermore, their commonly used single-station operation mode requires waiting for the previous sheet metal to be welded, the welded sheet to be removed, and the new sheet metal to be placed before a new welding task can begin. This limits each welding cycle, leading to low overall production efficiency and making it difficult to meet the demands of high-efficiency production.

[0004] Therefore, those skilled in the art have provided a lightweight mobile welding robot to address the problems mentioned in the background section. Utility Model Content

[0005] The purpose of this invention is to address the shortcomings of existing technologies by proposing a lightweight mobile welding robot. This welding robot adjusts the spacing between the lower clamping plates via an electric telescopic rod and, in conjunction with a second servo motor, drives the upper clamping plate to rotate flexibly. This allows for the stable clamping of plates of different sizes, ensuring welding stability and quality, and improving operational flexibility. Furthermore, its rotating disk design enables the clamping components to rotate flexibly, allowing for simultaneous welding on one side while preparing the other, effectively avoiding the time consumption of sequential operation of individual components, reducing waiting time, and significantly improving overall work efficiency.

[0006] To achieve the above objectives, the present invention provides the following technical solution:

[0007] A lightweight mobile welding robot includes a base, a first servo motor is provided on one side of the base, a gear is sleeved on the output end of the first servo motor, a gear ring is meshed on one side of the gear, a rotating disk is fixedly connected inside the gear ring, a plurality of clamping structures are provided on the upper end of the rotating disk, a robotic arm is fixedly connected to one side of the upper end of the base, and a welder is provided at one end of the robotic arm.

[0008] The clamping structure includes two sliding seats, each with a lower clamping plate fixedly connected to one side end face. Each of the two lower clamping plates has a second servo motor on one side end face. The output ends of the two second servo motors are fixedly connected to rotating rods. Each of the rotating rods has an upper clamping plate fixedly connected to its exterior. Each of the two sliding seats has an electric telescopic rod connected to both sides end faces. Multiple electric telescopic rods are fixed to the base.

[0009] Through the above technical solution, the welding robot adjusts the spacing of the lower clamping plate by means of an electric telescopic rod, and drives the upper clamping plate to rotate flexibly with the help of a second servo motor. It can firmly clamp plates of different sizes, ensure welding stability, guarantee welding quality, and improve the flexibility and adaptability of operation. At the same time, its rotating disk design allows the clamping components to rotate flexibly, so that welding on one side can be carried out while the other side is being prepared. This effectively avoids the time consumption of operating single components sequentially, shortens waiting time, and greatly improves overall work efficiency.

[0010] Furthermore, a support frame is fixedly connected to one side of the upper end of the base, and a protective cover is fixedly connected to one side of the support frame;

[0011] Through the above technical solutions, the protective cover can effectively isolate the operating mechanical parts, prevent workers from accidentally coming into contact with them and causing injury, and can effectively block the spatter that may be generated during the welding process, thus improving the safety of the operating environment.

[0012] Furthermore, an air pump is provided at one corner of the upper end of the base, one end of the air pump is connected to a purification box, a suction pipe is fixedly connected to one side of the purification box, and one end of the suction pipe is fixedly connected to a protective cover.

[0013] The above technical solution enables the real-time extraction of fumes and harmful gases generated inside the protective cover during the welding process. These gases are then filtered through a purification box before being discharged, effectively improving the working environment for operators and reducing the risk of occupational diseases.

[0014] Furthermore, the upper end of the rotating disk is provided with multiple guide grooves, and a guide block is fixedly connected to one side of the lower end of each of the multiple sliding seats. The multiple guide blocks are located inside the guide grooves and are slidably connected to them.

[0015] The above technical solution ensures that the sliding seat moves accurately and smoothly on the rotating disk, avoiding shaking or deviation during the movement, thus ensuring that the lower clamping plate can be accurately positioned and improving the accuracy and reliability of clamping and positioning.

[0016] Furthermore, a rotating ring is fixedly connected to the lower end of the rotating disk, and a rotating frame is fixedly connected to the upper end of the base. The rotating ring is located inside the rotating frame and is slidably connected to it.

[0017] The above technical solution provides reliable support for the rotation of the turntable, reduces rotational resistance, and ensures the smoothness of rotation.

[0018] Furthermore, a support plate is fixedly connected between every two lower clamping plates at the upper end of the rotating disk;

[0019] The above technical solution effectively prevents deformation or shaking between the lower clamping plates when clamping wider or heavier plates, ensuring that the plates are clamped evenly and firmly, improving the stability of the welding process, and helping to obtain higher quality welds.

[0020] This utility model has the following beneficial effects:

[0021] 1. The present invention proposes a lightweight mobile welding robot. By using an electric telescopic rod to push the lower clamping plate to adjust the spacing, and cooperating with the upper clamping plate driven by the second servo motor to rotate flexibly, the robot can easily and stably clamp welding plates of various sizes, ensuring that the welded parts remain stable during the welding process and are not prone to displacement or tilting, thereby guaranteeing the welding quality. At the same time, it greatly improves the flexibility and adaptability of operation.

[0022] 2. The lightweight mobile welding robot proposed in this utility model uses a first servo motor to drive a gear and a gear ring, which enables the upper rotating disk and clamping components to rotate flexibly. This allows the operator to clamp or adjust the other clamping component simultaneously while one clamping component rotates to the bottom of the welder for welding. This effectively avoids the time consumption caused by operating single components sequentially, shortens the waiting and pauses between operations, and thus greatly improves the overall work efficiency. Attached Figure Description

[0023] Figure 1 This is an overall isometric view of a lightweight mobile welding robot proposed in this utility model;

[0024] Figure 2 This is an isometric view of the base of a lightweight mobile welding robot proposed in this utility model;

[0025] Figure 3This is a schematic diagram of the rotating disk and clamping structure of a lightweight mobile welding robot proposed in this utility model.

[0026] Figure 4 This is a schematic diagram showing the unfolded upper and lower clamping plates of a lightweight mobile welding robot proposed in this utility model.

[0027] Figure 5 This is a cross-sectional view of a lightweight mobile welding robot proposed in this utility model.

[0028] Legend:

[0029] 1. Base; 2. First servo motor; 3. Gear; 4. Gear ring; 5. Rotating disk; 6. Clamping structure; 601. Sliding seat; 602. Lower clamping plate; 603. Second servo motor; 604. Rotating rod; 605. Upper clamping plate; 606. Electric telescopic rod; 607. Guide block; 608. Guide groove; 609. Support plate; 7. Rotating ring; 8. Rotating frame; 9. Robotic arm; 10. Support frame; 11. Protective cover; 12. Air pump; 13. Purification box; 14. Suction pipe. Detailed Implementation

[0030] The technical solutions of the present invention will be clearly and completely described below with reference to the accompanying drawings of specific embodiments. Obviously, the described specific embodiments are only a part of the specific embodiments of the present invention, and not all of them. Based on the specific embodiments of the present invention, all other specific embodiments obtained by those skilled in the art without creative effort are within the scope of protection of the present invention.

[0031] Reference Figure 1-5 The present invention provides a specific embodiment of a lightweight mobile welding robot, comprising a base 1, a first servo motor 2 disposed on one side of the interior of the base 1, a gear 3 sleeved on the output end of the first servo motor 2, a gear ring 4 meshing with one side of the gear 3, a rotating disk 5 fixedly connected inside the gear ring 4, a plurality of clamping structures 6 disposed on the upper end of the rotating disk 5, a robotic arm 9 fixedly connected to one side of the upper end of the base 1, and a welding device disposed at one end of the robotic arm 9;

[0032] The clamping structure 6 includes two sliding seats 601. A lower clamping plate 602 is fixedly connected to one side end face of each of the two sliding seats 601. A second servo motor 603 is provided on one side end face of each of the two lower clamping plates 602. A rotating rod 604 is fixedly connected to the output end of each of the two second servo motors 603. An upper clamping plate 605 is fixedly connected to the outside of each of the two rotating rods 604. An electric telescopic rod 606 is connected to both sides end face of each of the two sliding seats 601. Multiple electric telescopic rods 606 are fixed on the base 1.

[0033] The welding robot adjusts the spacing of the lower clamping plate 602 via an electric telescopic rod 606, and in conjunction with the second servo motor 603, drives the upper clamping plate 605 to rotate flexibly. This allows for the stable clamping of plates of different sizes, ensuring welding stability and quality, and improving operational flexibility. Furthermore, its rotating disk 5 design allows the clamping components to rotate flexibly, enabling welding on one side while preparing the other, effectively avoiding the time consumption of sequential operation of single components, reducing waiting time, and significantly improving overall work efficiency.

[0034] A support frame 10 is fixedly connected to one side of the upper end of the base 1, and a protective cover 11 is fixedly connected to one side of the support frame 10. The protective cover 11 can effectively isolate the mechanical parts in operation, prevent workers from accidentally coming into contact with them and causing injury, and can effectively block the spatter that may be generated during the welding process, thus improving the safety of the operating environment. An air pump 12 is set at one corner of the upper end of the base 1. One end of the air pump 12 is connected to a purification box 13. An air suction pipe 14 is fixedly connected to one end of the purification box 13. One end of the air suction pipe 14 is fixedly connected to the protective cover 11, which can extract the fumes and harmful gases generated inside the protective cover 11 in real time during the welding process, filter them through the purification box 13 and then discharge them, effectively improving the working environment of the operators and reducing the risk of occupational diseases. The upper end of the rotating disk 5 is provided with multiple guide grooves 608, and the lower end of multiple sliding seats 601 is fixedly connected to a guide block 607. All blocks 607 are located inside and slidably connected to the guide groove 608, ensuring that the sliding seat 601 moves accurately and smoothly on the rotating disk 5, avoiding shaking or deviation during movement, thus ensuring that the lower clamping plate 602 can be accurately positioned, improving the accuracy and reliability of clamping and positioning. A rotating ring 7 is fixedly connected to the lower end of the rotating disk 5, and a rotating frame 8 is fixedly connected to the upper end of the base 1. The rotating ring 7 is located inside the rotating frame 8 and slidably connected to it, providing reliable support for the rotation of the rotating disk 5, reducing rotational resistance, and ensuring the stability of rotation. A support plate 609 is fixedly connected between every two lower clamping plates 602 at the upper end of the rotating disk 5, effectively preventing deformation or shaking that may occur between the lower clamping plates 602 when clamping wider or heavier plates, ensuring that the plates are clamped evenly and firmly, improving the stability of the welding process, and helping to obtain higher quality welds.

[0035] Working Principle: When using this robot, the operator first pushes it to the designated work location. Then, using a clamping assembly, the distance between the lower clamping plates 602 is precisely adjusted via an electric telescopic rod 606, and the upper clamping plate 605 is driven to rotate flexibly by a second servo motor 603, firmly clamping welding plates of various sizes and ensuring their stable position during welding, preventing displacement. After the plates are stably clamped, the operator controls the first servo motor 2 to drive the gear 3 to mesh with the gear ring 4, allowing the upper rotating disk 5 and its clamping assembly to rotate flexibly. This allows the operator to simultaneously use the other clamping assembly to prepare new plates or adjust the state of already clamped plates while one clamping assembly rotates to the bottom of the welder for welding. This effectively avoids the waiting time and operational interruptions caused by traditional single-component sequential operations, significantly shortening the process connection time and thus greatly improving the overall welding efficiency.

[0036] Finally, it should be noted that the above description is only a preferred embodiment of the present utility model and is not intended to limit the present utility model. Although the present utility model has been described in detail with reference to the foregoing specific embodiments, those skilled in the art can still modify the technical solutions described in the foregoing specific embodiments or make equivalent substitutions for some of the technical features. Any modifications, equivalent substitutions, improvements, etc., made within the spirit and principles of the present utility model should be included within the protection scope of the present utility model.

Claims

1. A lightweight mobile welding robot comprising a base (1), characterized in that: A first servo motor (2) is provided on one side of the base (1). A gear (3) is sleeved on the output end of the first servo motor (2). A gear ring (4) is meshed on one side of the gear (3). A rotating disk (5) is fixedly connected inside the gear ring (4). A plurality of clamping structures (6) are provided on the upper end of the rotating disk (5). A robotic arm (9) is fixedly connected on one side of the upper end of the base (1). A welder is provided at one end of the robotic arm (9). The clamping structure (6) includes two sliding seats (601), and a lower clamping plate (602) is fixedly connected to one side end face of each of the two sliding seats (601). A second servo motor (603) is provided on one side end face of each of the two lower clamping plates (602). A rotating rod (604) is fixedly connected to the output end of each of the two second servo motors (603). An upper clamping plate (605) is fixedly connected to the outside of each of the two rotating rods (604). An electric telescopic rod (606) is connected to both side end faces of each of the two sliding seats (601). Multiple electric telescopic rods (606) are fixed on the base (1).

2. The lightweight mobile welding robot according to claim 1, characterized in that: A support frame (10) is fixedly connected to one side of the upper end of the base (1), and a protective cover (11) is fixedly connected to one side of the support frame (10).

3. The lightweight mobile welding robot of claim 1, wherein: An air pump (12) is provided at one corner of the upper end of the base (1). One end of the air pump (12) is connected to a purification box (13). A suction pipe (14) is fixedly connected to one side of the purification box (13). One end of the suction pipe (14) is fixedly connected to the protective cover (11).

4. The lightweight mobile welding robot of claim 1, wherein: The upper end of the rotating disk (5) is provided with multiple guide grooves (608), and the lower end of each of the multiple sliding seats (601) is fixedly connected with a guide block (607). The multiple guide blocks (607) are located inside the guide grooves (608) and are slidably connected to them.

5. The lightweight mobile welding robot of claim 1, wherein: The lower end of the rotating disk (5) is fixedly connected to a rotating ring (7), and the upper end of the base (1) is fixedly connected to a rotating frame (8). The rotating ring (7) is located inside the rotating frame (8) and is slidably connected to it.

6. The lightweight mobile welding robot of claim 1, wherein: A support plate (609) is fixedly connected between every two lower clamping plates (602) at the upper end of the rotating disk (5).