A welding robot's lifting mechanism

Abstract

This utility model relates to a lifting mechanism for a welding robot, belonging to the technical field of welding robot technology. It includes a welding robotic arm and a base plate. A lifting structure and a force-bearing structure are provided on the top of the base plate. The lifting structure includes an electric slide fixedly connected to the top of the base plate. A support platform is fixedly connected to the movable shaft of the electric slide, and a control console is fixedly connected to the top of the support platform. The force-bearing structure includes a limiting frame fixedly connected to the right side of the electric slide. This lifting mechanism for the welding robot, through the action of the electric slide and the support platform, drives the control console and the welding robotic arm to move up and down. This not only achieves flexible adjustment of the welding height but also improves the adaptability and precision of welding operations. Adjusting the threaded rod adjusts the height of the force-bearing plate, and the limiting frame effectively limits the limiting plate, ensuring positioning accuracy during the lifting process and avoiding operational errors caused by mechanical shaking or offset.

Description

Technical Field

[0001] This utility model relates to the field of welding robot technology, specifically to a lifting mechanism for a welding robot. Background Technology

[0002] Welding robots are automated devices that integrate robotic arms, control systems, welding equipment, and sensors. They can autonomously complete welding operations according to preset programs and are characterized by high precision, high efficiency, high stability, and adaptability to complex welding environments. They are widely used in automobile manufacturing, shipbuilding, aerospace, and engineering machinery. By replacing traditional manual welding, they not only significantly improve production efficiency and welding quality but also reduce labor intensity and safety risks. Modern welding robots are typically equipped with multiple welding processes and can be used in conjunction with auxiliary devices such as lifting mechanisms, mobile platforms, and vision systems to achieve flexible welding from multiple angles, at multiple workstations, and in multiple dimensions. They are an important component of industrial automation and intelligent manufacturing.

[0003] In practical applications of welding robots, the lifting mechanism is a key component for achieving height adjustment of the welding robot and adapting to the welding needs of different workpieces.

[0004] However, in existing technologies, when a welding robot raises its working height via a lifting mechanism, its overall center of gravity shifts upwards. This is especially problematic when the lifting height is high or the robot is under heavy load, as the center of gravity tends to shift to one side, leading to decreased structural stability. This shift not only causes the welding robot to sway or vibrate during operation but also affects welding accuracy, potentially causing weld misalignment and uneven weld quality. Furthermore, the shifted center of gravity exacerbates wear on the mechanical structure, reduces equipment lifespan, and increases maintenance costs. Therefore, this paper proposes a lifting mechanism for welding robots to address these issues. Utility Model Content

[0005] To address the shortcomings of existing technologies, this utility model provides a lifting mechanism for a welding robot, which has advantages such as improved stability after the welding robot is lifted. It solves the problem that the center of gravity of the existing welding robot will shift upward after being lifted, especially when the lifting height is high or the welding robot has a large load, the center of gravity is prone to be biased to one side, resulting in a decrease in structural stability.

[0006] To achieve the above objectives, this utility model provides the following technical solution:

[0007] A lifting mechanism for a welding robot includes a welding robotic arm and a base plate, wherein a lifting structure is provided on the top of the base plate and a force-bearing structure is provided on the top of the base plate;

[0008] The lifting structure includes an electric slide fixedly connected to the top of the base plate, a support platform fixedly connected to the movable shaft of the electric slide, and a control console fixedly connected to the top of the support platform.

[0009] The force-bearing structure includes a limiting frame fixedly connected to the right side of the electric slide table, a limiting plate slidably connected inside the limiting frame, a force-bearing plate fixedly connected to the right side of the limiting plate, a counterweight fixedly connected to the top of the base plate, a fixing frame fixedly connected to the top of the counterweight, an adjusting threaded rod threadedly connected inside the fixing frame, and a force-bearing rod fixedly connected to the top of the base plate.

[0010] Furthermore, mounting plates are fixedly connected to both the front and rear sides of the base plate, and two fastening screws are slidably connected inside the mounting plates.

[0011] Furthermore, the welding robotic arm is located above the base plate and is fixedly connected to the left side of the control console.

[0012] Furthermore, a reinforcing plate is movably connected to the bottom of the electric slide's movable shaft and the support platform. Two reinforcing screws slide through the interior of the reinforcing plate, and the two reinforcing screws are threaded into the interior of the electric slide's movable shaft and the support platform, respectively.

[0013] Furthermore, the limiting frame is L-shaped, the limiting plate is slidably connected to the right side of the electric slide table, and the force plate is slidably connected inside the two limiting frames.

[0014] Furthermore, the force plate has a force-bearing hole inside, and the force-bearing rod is slidably connected inside the force-bearing hole, with the size of the force-bearing rod matching that of the force-bearing hole.

[0015] Furthermore, the inside of the fixing frame is provided with a sliding groove, and the force-bearing plate is slidably connected inside the sliding groove.

[0016] Furthermore, the force-bearing plate has a threaded hole inside, and the adjusting threaded rod is threaded into the inside of the threaded hole.

[0017] Compared with the prior art, this utility model provides a lifting mechanism for a welding robot, which has the following advantages:

[0018] The lifting mechanism of this welding robot, through the action of an electric slide and a support platform, drives the control console and welding robotic arm to move up and down. This not only enables flexible adjustment of the welding height but also improves the adaptability and precision of welding operations. The height of the force plate is adjusted by adjusting the threaded rod, and the limit frame effectively limits the limit plate, ensuring positioning accuracy during the lifting process and avoiding operational errors caused by mechanical shaking or offset. At the same time, the synergistic action of the force plate and the force rod can effectively support and balance the weight that shifts after the welding robotic arm rises, significantly reducing the impact of center of gravity shift on overall stability, thereby improving the structural rigidity and anti-interference capability of the welding robot when operating at height. Attached Figure Description

[0019] Figure 1 This is a three-dimensional structural schematic diagram of the present utility model;

[0020] Figure 2 This is a schematic diagram of the left side structure of the fixing frame of this utility model;

[0021] Figure 3 This is a bottom view of the reinforcing plate structure of this utility model;

[0022] In the diagram: 1. Welding robotic arm; 2. Base plate; 3. Mounting plate; 4. Fastening screw; 5. Electric slide table; 6. Support platform; 7. Control console; 8. Limiting frame; 9. Limiting plate; 10. Force plate; 11. Counterweight seat; 12. Fixing frame; 13. Adjusting threaded rod; 14. Force rod; 15. Reinforcing plate; 16. Reinforcing screw. Detailed Implementation

[0023] 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.

[0024] Please see Figures 1 to 3 The lifting mechanism of a welding robot in this embodiment includes a welding robotic arm 1 and a base plate 2. The top of the base plate 2 is provided with a lifting structure and a force-bearing structure.

[0025] In this embodiment, mounting plates 3 are fixedly connected to both the front and rear sides of the base plate 2, and two fastening screws 4 are slidably connected inside the mounting plates 3.

[0026] In this embodiment, the lifting structure includes an electric slide 5 fixedly connected to the top of the base plate 2. A support platform 6 is fixedly connected to the movable shaft of the electric slide 5. A reinforcing plate 15 is movably connected to the bottom of the movable shaft of the electric slide 5 and the support platform 6. Two reinforcing screws 16 slide through the interior of the reinforcing plate 15. The two reinforcing screws 16 are threadedly connected to the movable shaft of the electric slide 5 and the interior of the support platform 6, respectively. A control console 7 is fixedly connected to the top of the support platform 6. The welding robotic arm 1 is located above the base plate 2 and is fixedly connected to the left side of the control console 7.

[0027] In this embodiment, the force-bearing structure includes a limiting frame 8 fixedly connected to the right side of the electric slide table 5, a limiting plate 9 slidably connected inside the limiting frame 8, a force-bearing plate 10 fixedly connected to the right side of the limiting plate 9, the limiting frame 8 is in the shape of an "L", the limiting plate 9 is slidably connected to the right side of the electric slide table 5, the force-bearing plate 10 is slidably connected inside the two limiting frames 8, and a counterweight seat 11 is fixedly connected to the top of the base plate 2.

[0028] In this embodiment, a fixed frame 12 is fixedly connected to the top of the counterweight base 11. A sliding groove is provided inside the fixed frame 12. The force plate 10 is slidably connected inside the sliding groove. An adjusting threaded rod 13 is threadedly connected inside the fixed frame 12. A threaded hole is provided inside the force plate 10. The adjusting threaded rod 13 is threadedly connected inside the threaded hole. A force-bearing rod 14 is fixedly connected to the top of the base plate 2. A force-bearing hole is provided inside the force plate 10. The force-bearing rod 14 is slidably connected inside the force-bearing hole. The size of the force-bearing rod 14 is adapted to the size of the force-bearing hole.

[0029] It should be noted that the base plate 2 is securely installed on the ground by mounting plate 3 and fastening screws 4, thereby improving the overall stability of the equipment.

[0030] It should be noted that the counterweight seat 11 will provide counterweight to the right side of the base plate 2.

[0031] The working principle of the above embodiments is as follows:

[0032] First, the electric slide 5 is started, which drives the support platform 6 to move upward. At this time, the support platform 6 will simultaneously drive the control console 7 and the welding robot arm 1 to move upward. The welding robot arm 1 can then be controlled by the control console 7 to perform welding on the workpiece. Meanwhile, the adjusting threaded rod 13 is rotated to drive the force plate 10 to move upward. At the same time, the force plate 10 will slide and connect to the outer peripheral wall of the force rod 14. Through the action of the force plate 10 and the force rod 14, part of the weight of the welding robot arm 1 is effectively supported and balanced.

[0033] The installation, connection, or setting methods disclosed in this embodiment are all common mechanical connection methods, and any method that achieves the desired beneficial effect can be implemented. Furthermore, all electrical components in this embodiment are electrically connected to the main controller and power supply. The main controller can be a conventional, known device such as a computer that performs control functions. Those skilled in the art can control the electrical components through simple programming, and the existing disclosed power connection technologies are common knowledge in the field. Therefore, this embodiment will not elaborate further on their specific structural composition and working principles.

[0034] It should be noted that the orientations or positional relationships indicated herein are based on the orientations or positional relationships shown in the accompanying drawings, and are only for the purpose of facilitating the description of this application and simplifying the description, and are not intended to indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation, and therefore should not be construed as a limitation of this application.

[0035] It should be noted that, in this document, relational terms such as "first" and "second" are used only to distinguish one entity or operation from another, and do not necessarily require or imply any such actual relationship or order between these entities or operations. Furthermore, 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 a process, method, article, or apparatus. Without further limitations, an element defined by the phrase "comprising one..." does not exclude the presence of other identical elements in the process, method, article, or apparatus that includes said element.

[0036] 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. A lifting mechanism for a welding robot, comprising a welding robotic arm (1) and a base plate (2), characterized in that: The top of the base plate (2) is provided with a lifting structure, and the top of the base plate (2) is provided with a force-bearing structure; The lifting structure includes an electric slide (5) fixedly connected to the top of the base plate (2), a support platform (6) fixedly connected to the movable shaft of the electric slide (5), and a control console (7) fixedly connected to the top of the support platform (6). The force-bearing structure includes a limiting frame (8) fixedly connected to the right side of the electric slide (5), a limiting plate (9) slidably connected inside the limiting frame (8), a force-bearing plate (10) fixedly connected to the right side of the limiting plate (9), a counterweight seat (11) fixedly connected to the top of the base plate (2), a fixing frame (12) fixedly connected to the top of the counterweight seat (11), an adjusting threaded rod (13) threadedly connected inside the fixing frame (12), and a force-bearing rod (14) fixedly connected to the top of the base plate (2).

2. The lifting mechanism of a welding robot according to claim 1, characterized in that: The base plate (2) is fixedly connected to the front and rear sides with mounting plates (3), and the mounting plates (3) are slidably connected with two fastening screws (4).

3. The lifting mechanism of a welding robot according to claim 1, characterized in that: The welding robotic arm (1) is located above the base plate (2) and is fixedly connected to the left side of the control console (7).

4. The lifting mechanism of a welding robot according to claim 1, characterized in that: The movable shaft of the electric slide (5) and the bottom of the support platform (6) are movably connected to a reinforcing plate (15). Two reinforcing screws (16) slide through the interior of the reinforcing plate (15). The two reinforcing screws (16) are threadedly connected to the movable shaft of the electric slide (5) and the interior of the support platform (6).

5. The lifting mechanism of a welding robot according to claim 1, characterized in that: The limiting frame (8) is L-shaped, the limiting plate (9) is slidably connected to the right side of the electric slide (5), and the force plate (10) is slidably connected inside the two limiting frames (8).

6. The lifting mechanism of a welding robot according to claim 1, characterized in that: The force plate (10) has a force hole inside, and the force rod (14) is slidably connected inside the force hole. The force rod (14) is adapted to the size of the force hole.

7. The lifting mechanism of a welding robot according to claim 1, characterized in that: The fixed frame (12) has a sliding groove inside, and the force plate (10) is slidably connected inside the sliding groove.

8. The lifting mechanism of a welding robot according to claim 1, characterized in that: The force plate (10) has a threaded hole inside, and the adjusting threaded rod (13) is threadedly connected inside the threaded hole.

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