Welding device for excavator frame production

Abstract

The utility model belongs to the technical field of excavator frames, and particularly relates to an excavator frame production welding device which comprises a frame, a mechanical arm, a welding gun and a mounting table, two fixing blocks are mounted at the bottom end of the mounting table, a threaded lead screw is connected between the two fixing blocks, a bearing is mounted at one end of the threaded lead screw, and the other end of the threaded lead screw is connected with the mechanical arm. The surface of the threaded lead screw is in threaded connection with a threaded sleeve, a servo motor is installed on the outer side wall of one fixing block, the servo motor, the threaded lead screw and the bearing are matched, the threaded sleeve is driven to drive the mechanical arm to be flexibly adjusted, and therefore the position of the mechanical arm on the installation table is changed. Therefore, the welding range of the mechanical arm is expanded, even if the size of the excavator frame exceeds the original telescopic range of the mechanical arm, the welding requirement can be met through adjustment, and the applicability of the welding device is remarkably improved.

Description

Technical Field

[0001] This utility model belongs to the field of excavator frame technology, specifically relating to an excavator frame production welding device. Background Technology

[0002] The excavator frame is a crucial component of an excavator, bearing the engine, cab, working devices, and other key parts. It serves as the excavator's skeleton and support structure. An excavator frame typically consists of a main frame and a subframe. The main frame is the excavator's primary load-bearing structure, welded from high-strength steel, possessing sufficient strength and rigidity to withstand the various loads generated during operation. The subframe is used to mount and support components such as the engine, transmission, and fuel tank, ensuring their stable and reliable operation.

[0003] In the excavator frame manufacturing process, frame welding is a crucial step, relying on the effective operation of the welding equipment. However, current welding equipment faces certain challenges in use, particularly since the extension length of the welding boom is fixed, while excavator frames vary in size. When encountering excavator frames whose dimensions exceed the extension range of the welding boom, the welding operation cannot be completed, thus limiting the applicability of the welding equipment. Utility Model Content

[0004] The purpose of this invention is to provide a welding device for excavator frame production, aiming to solve the challenges faced by existing welding devices in use, particularly the fixed extension length of the welding boom while excavator frames vary in size. When encountering excavator frames whose dimensions exceed the extension range of the welding boom, the welding operation cannot be met, thus limiting the applicability of the welding device.

[0005] To achieve the above objectives, this utility model provides the following technical solution: a welding device for excavator frame production, comprising a frame, a robotic arm, a welding gun, and a mounting platform. Two fixing blocks are installed at the bottom of the mounting platform, and a threaded screw is connected between the two fixing blocks. A bearing is installed at one end of the threaded screw, and a threaded sleeve is threadedly connected to the surface of the threaded screw. A servo motor is installed on the outer wall of one of the fixing blocks.

[0006] In a preferred embodiment of the excavator frame production welding device of this utility model, the threaded screw is rotatably connected to the two fixed blocks via bearings.

[0007] In a preferred embodiment of the excavator frame production welding device of this utility model, the top end of the threaded sleeve is connected to the robotic arm, and the output shaft of the servo motor is connected to one end of the threaded screw.

[0008] As a preferred embodiment of the excavator frame production welding device of this utility model, the robotic arm moves through a threaded connection between a threaded sleeve and a threaded screw.

[0009] As a preferred embodiment of the excavator frame production welding device of this utility model, a fixing box is installed at one corner of the top of the mounting platform, a fixing plate is installed at the top of the fixing box, and a through hole is opened on the surface of the fixing plate.

[0010] As a preferred embodiment of the excavator frame production welding device of this utility model, the bottom end of the fixing plate is connected to a cooling fan, and the surface of the fixing box is provided with an air inlet.

[0011] As a preferred embodiment of the excavator frame production welding device of this utility model, the size of the fixing plate is adapted to the internal size of the fixing box, and the fixing box and the fixing plate are sealed together.

[0012] Compared with the prior art, the beneficial effects of this utility model are:

[0013] This invention utilizes a servo motor, a threaded screw, and bearings to drive a threaded sleeve that flexibly adjusts the robotic arm, thereby changing its position on the mounting platform. This expands the welding range of the robotic arm, allowing it to meet welding requirements even if the excavator frame exceeds its original extension range, significantly improving the applicability of the welding device. Next, the cooling fan is used. When the robotic arm is not in use, the welding torch can be adjusted to the top of the mounting box. At this time, the cooling fan activates, directing airflow directly at the welding torch for effective cooling, ensuring the stability and lifespan of the welding torch. Attached Figure Description

[0014] The accompanying drawings are provided to further illustrate the present invention and form part of the specification. They are used together with the embodiments of the present invention to explain the present invention, but do not constitute a limitation thereof. In the drawings:

[0015] Figure 1 This is a schematic diagram of the main structure of this utility model;

[0016] Figure 2 This is a top view of the main structure of this utility model;

[0017] Figure 3 This is a bottom view of the mounting platform of this utility model.

[0018] Figure 4 This is a schematic diagram of the fixing box structure of this utility model.

[0019] In the diagram: 1. Frame; 2. Robotic arm; 3. Welding gun; 4. Mounting platform; 5. Fixing block; 6. Threaded screw; 7. Servo motor; 8. Threaded sleeve; 9. Bearing; 10. Fixing box; 11. Fixing plate; 12. Cooling fan; 13. Air inlet. Detailed Implementation

[0020] 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. Example

[0021] Please see Figure 1-4 The present invention provides the following technical solution: a welding device for excavator frame production, including a frame 1, a robotic arm 2, a welding gun 3 and a mounting platform 4. Two fixing blocks 5 are installed at the bottom of the mounting platform 4, and a threaded screw 6 is connected between the two fixing blocks 5. A bearing 9 is installed at one end of the threaded screw 6, and a threaded sleeve 8 is threadedly connected to the surface of the threaded screw 6. A servo motor 7 is installed on the outer wall of one fixing block 5.

[0022] In a preferred embodiment, the threaded screw 6 is rotatably connected to the two fixed blocks 5 via the bearing 9.

[0023] In a preferred embodiment: the top end of the threaded sleeve 8 is connected to the robotic arm 2, and the output shaft of the servo motor 7 is connected to one end of the threaded screw 6.

[0024] In a preferred embodiment, the robotic arm 2 moves via a threaded connection between the threaded sleeve 8 and the threaded screw 6.

[0025] In this embodiment, the welding device, i.e., the welding robot, first consists of a frame 1, a robotic arm 2, a welding gun 3, and a mounting platform 4. Then, the excavator frame to be welded is placed at the front end of the robotic arm 2, and the robotic arm 2 and welding gun 3 are started via a manual operation control system to begin operation. Since the technology of welding robots is quite mature, its detailed workflow will not be described further here.

[0026] Furthermore, when the excavator frame exceeds the original extension length of the robotic arm 2, causing the welding gun 3 to malfunction, the operator can turn on the power and start the servo motor 7. The rotation of the output shaft of the servo motor 7 drives the threaded screw 6 to rotate within the inner ring of the bearing 9. Simultaneously, the threaded sleeve 8 moves along the threads on the surface of the threaded screw 6. This movement, in turn, moves the robotic arm 2, changing the position of the welding gun 3 and thus expanding the welding range of the robotic arm 2. In this way, even if the excavator frame exceeds the original extension range of the robotic arm 2, welding requirements can be met through adjustments, significantly improving the applicability of the welding device. Example

[0027] Please see Figure 1-4 A fixing box 10 is installed at one corner of the top of the mounting platform 4, and a fixing plate 11 is installed at the top of the fixing box 10. A through hole is opened on the surface of the fixing plate 11.

[0028] In a preferred embodiment: a cooling fan 12 is connected to the bottom end of the fixing plate 11, and an air inlet 13 is provided on the surface of the fixing box 10.

[0029] In a preferred embodiment, the size of the fixing plate 11 is adapted to the internal size of the fixing box 10, and the fixing box 10 and the fixing plate 11 are sealed together.

[0030] In this embodiment, after the welding device is used, the robotic arm 2 will drive the welding gun 3 back to its initial position, which is at the top of the fixed box 10. Then, the operator manually turns on the power and starts the cooling fan 12. After the cooling fan 12 starts working, the generated air will blow towards the top, directly contacting the welding gun 3 and cooling it down, thereby ensuring the stability of the welding gun 3 and extending its service life.

[0031] It is worth noting that the through holes on the surface of the air inlet 13 and the mounting plate 11 allow air to flow easily, preventing the cooling fan 12 from failing to generate effective airflow.

[0032] Finally, it should be noted that the above description is merely a preferred embodiment of this utility model and is not intended to limit the utility model. Although the utility model has been described in detail with reference to the foregoing embodiments, those skilled in the art can still modify the technical solutions described in the foregoing embodiments or make equivalent substitutions for some of the technical features. Any modifications, equivalent substitutions, improvements, etc., made within the spirit and principles of this utility model should be included within the protection scope of this utility model.

Claims

1. Excavator frame production welding device, comprising a frame (1), a mechanical arm (2), a welding gun (3) and a mounting table (4), characterized in that: The bottom end of the mounting table (4) is provided with two fixed blocks (5), and a threaded screw rod (6) is connected between the two fixed blocks (5); One end of the threaded screw rod (6) is provided with a bearing (9), and a threaded sleeve (8) is threadedly connected to the surface of the threaded screw rod (6); and the outer side wall of one of the fixed blocks (5) is provided with a servo motor (7).

2. The excavator frame production welding apparatus according to claim 1, characterized by: The threaded screw rod (6) is rotatably connected to the two fixed blocks (5) through the bearing (9).

3. The excavator frame production welding apparatus of claim 1, wherein: The top end of the threaded sleeve (8) is connected to the mechanical arm (2), and the output shaft of the servo motor (7) is connected to one end of the threaded screw rod (6).

4. The excavator frame production welding apparatus of claim 1, wherein: The mechanical arm (2) is threadedly moved between the threaded sleeve (8) and the threaded screw rod (6).

5. The excavator frame production welding apparatus of claim 1, wherein: One corner of the top end of the mounting table (4) is provided with a fixed box (10), the top end of the fixed box (10) is provided with a fixed plate (11), and a through hole is formed in the surface of the fixed plate (11).

6. The excavator frame production welding apparatus of claim 5, wherein: The bottom end of the fixed plate (11) is connected with a cooling fan (12), and the surface of the fixed box (10) is provided with an air inlet hole (13).

7. The excavator frame production welding apparatus of claim 5, wherein: The size of the fixed plate (11) is matched with the internal size of the fixed box (10), and the fixed box (10) and the fixed plate (11) are sealingly connected.

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