A welding device for producing and processing a main girder of a bridge crane

Abstract

This utility model discloses a welding device for the production and processing of main beams of bridge cranes, including a main beam steel plate to be welded, a fillet welding machine body placed on the main beam steel plate, a bracket fixedly connected to the top of the fillet welding machine body, a first adjusting arm and a second adjusting arm rotatably connected to both sides of the bracket, a first connecting frame provided at one end of the second adjusting arm, a first mounting seat connected to the inner side of the first connecting frame via a rotating shaft, a first limiting wheel rotatably connected to the inner side of the first mounting seat, and a first limiting wheel rotatably disposed on the inner side of the first connecting frame, the first limiting wheel being in contact with one side of the main beam steel plate to be welded, and a second limiting wheel rotatably disposed at one end of the first adjusting arm, the second limiting wheel being in contact with the other side of the main beam steel plate to be welded. This device can improve the stability of the connection between the fillet welding machine body and the main beam steel plate to be welded, and ensure the stability and accuracy of the movement of the fillet welding machine body during the welding process.

Description

Technical Field

[0001] This utility model relates to the field of bridge crane main beam production technology, specifically a welding device for bridge crane main beam production and processing. Background Technology

[0002] The production of the main beam of a bridge crane is a core part of crane manufacturing. Its quality directly affects the load-bearing capacity, safety and service life of the entire machine. The production of the main beam involves complex processes, technological innovation and a continuous pursuit of precision and efficiency. The production process includes forming, assembly, welding, straightening and testing.

[0003] The welding of the main beam of a bridge crane requires the use of a fillet welding carriage. A fillet welding carriage (also known as an automatic welding carriage or welding crawler) is an electromechanical integrated device used for the automatic welding of long, straight, or regularly curved weld seams. It moves along the workpiece surface and drives the welding torch to complete the welding task according to preset parameters. It is a key tool for improving welding efficiency and quality. Existing fillet welding carriages primarily move using wheels at the bottom, while a magnetic system connects the carriage to the steel plate. This positioning method requires a high degree of flatness on the steel plate surface and also has certain requirements regarding the material of the steel plate, resulting in poor applicability. Therefore, improvements are needed. Utility Model Content

[0004] The purpose of this utility model is to provide a welding device for the production and processing of main beams of bridge cranes, so as to solve the problems mentioned in the background art, such as the general stability of the connection between the fillet welding car and the steel plate and the poor accuracy during movement.

[0005] To achieve the above objectives, this utility model provides the following technical solution: a welding device for the production and processing of main beams of bridge cranes, comprising a main beam steel plate to be welded, a fillet welding machine body placed on the main beam steel plate to be welded, a bracket fixedly connected to the top of the fillet welding machine body, a first adjusting arm and a second adjusting arm rotatably connected to both sides of the bracket, a first connecting frame provided at one end of the second adjusting arm, a first limiting wheel rotatably provided inside the first connecting frame, the first limiting wheel being in contact with one side of the main beam steel plate to be welded, and a second limiting wheel rotatably provided at one end of the first adjusting arm, the second limiting wheel being in contact with the other side of the main beam steel plate to be welded.

[0006] Preferably, the inner side of the first connecting frame is connected to a first mounting base via a rotating shaft, and the inner side of the first mounting base is rotatably connected to a first limiting wheel. The first mounting base and the first connecting frame can also be locked together by bolts.

[0007] Preferably, one end of the first adjusting arm has an opening, and a connecting arm is inserted into the opening. The connecting arm and the first adjusting arm are rotatably connected by a rotating shaft. A second connecting frame is fixedly connected to the inner side of the connecting arm, and the positions of the connecting arm and the first adjusting arm can be locked by bolts.

[0008] Preferably, the inner side of the second connecting frame is connected to a second mounting base via a rotating shaft, and the inner side of the second mounting base is rotatably connected to a second limiting wheel. The positions of the second mounting base and the second connecting frame can be locked by bolts.

[0009] Preferably, a first support frame is fixedly connected to one side of the main body of the fillet welding machine, and a support wheel is rotatably connected to the inner side of one end of the first support frame, with the support wheel fitting against the inner side of the main beam steel plate to be welded.

[0010] Preferably, a cleaning component is provided on one side of the fillet welder body; The cleaning assembly includes a second support frame located at the bottom of the first support frame, and the cleaning assembly is arranged symmetrically about the bisector of the corner welder body.

[0011] Preferably, a cleaning brush is fixedly connected to one side of the second support frame, and one side of the cleaning brush is attached to the corner of the main beam steel plate to be welded.

[0012] Compared with the prior art, the beneficial effects of this utility model are: (1) This device can improve the stability of the connection between the main body of the fillet welding machine and the steel plate of the main beam to be welded, and ensure the stability and accuracy of the movement of the main body of the fillet welding machine during the welding process.

[0013] (2) This device connects the first adjusting arm and the second adjusting arm to the two sides of the bracket at the top of the main body of the fillet welding machine. By adjusting the angle of the first adjusting arm and the second adjusting arm, the second limiting wheel on the inner side of the first adjusting arm and the first limiting wheel are respectively attached to the two sides of the main beam steel plate to be welded. This ensures the stability of the connection between the main body of the fillet welding machine and the main beam steel plate to be welded, ensures the accuracy when the main body of the fillet welding machine moves, and avoids the position of the main body of the fillet welding machine from shifting. Through the dual positioning of the second limiting wheel and the first limiting wheel, the impact caused by the uneven surface of the main beam steel plate to be welded is reduced.

[0014] (3) This device has cleaning brushes installed at both the front and rear ends on one side of the main body of the fillet welding machine. The cleaning brushes are attached to the corners of the steel plate of the main beam to be welded. This allows the gaps to be welded to be cleaned before the main body of the fillet welding machine moves to weld, thus ensuring the effect of subsequent welding. Attached Figure Description

[0015] Figure 1 This is a schematic diagram of the welding device for the production and processing of the main beam of a bridge crane according to this utility model. Figure 2This utility model relates to a welding device for the production and processing of main beams of bridge cranes. Figure 1 Enlarged view of point A in the middle; Figure 3 This utility model relates to a welding device for the production and processing of main beams of bridge cranes. Figure 1 Enlarged view of section B in the middle.

[0016] In the diagram: 1. First support frame; 2. Support wheel; 3. Cleaning assembly; 31. Second support frame; 32. Cleaning brush; 4. Main beam steel plate to be welded; 5. First adjusting arm; 6. Fillet welding machine body; 7. Bracket; 8. Second adjusting arm; 9. First limiting wheel; 10. First connecting frame; 11. First mounting base; 12. Connecting arm; 13. Second connecting frame; 14. Second mounting base; 15. Second limiting wheel. Detailed Implementation

[0017] 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.

[0018] Please see Figure 1-3This utility model provides a technical solution: a welding device for the production and processing of main beams of bridge cranes, including a main beam steel plate 4 to be welded, a fillet welding machine body 6 placed on the main beam steel plate 4, a first support frame 1 fixedly connected to one side of the fillet welding machine body 6, a support wheel 2 rotatably connected to the inner side of one end of the first support frame 1, the support wheel 2 fitting against the inner side of the main beam steel plate 4 to be welded, the support wheel 2 of this structure can support the inner side of the main beam steel plate 4 to be welded, and play a limiting role in the fillet welding machine body 6, ensuring the distance between the fillet welding machine body 6 and the main beam steel plate 4 to be welded, a cleaning component 3 is provided on one side of the fillet welding machine body 6, the cleaning component 3 includes a second support frame 31 located at the bottom of the first support frame 1, the cleaning component 3 is flat about the fillet welding machine body 6 The dividing lines are symmetrically arranged front and back. This fillet welding machine body 6 consists of a vehicle body, drive system, welding torch system, guide and positioning system, control system, and safety system. The working principle of the fillet welding machine body 6 can be summarized as follows: the fillet welding machine body 6 is located on top of the workpiece and is driven by a motor to move along the weld seam. Through precise control of the welding torch position and parameters, automated welding is achieved. The other structures of the fillet welding machine body 6 have not been modified in this application. In the guide and positioning system, the magnetic attraction system is replaced by the first limiting wheel 9 and the second limiting wheel 15. A cleaning brush 32 is fixedly connected to one side of the second support frame 31. A ceramic plate can be used to separate and protect the cleaning brush 32 from the welding head of the fillet welding machine body 6 to prevent welding waste from splashing onto the cleaning brush 32 and affecting the cleaning process. For normal use of the cleaning brush 32, one side of the cleaning brush 32 is attached to the corner of the main beam steel plate 4 to be welded. The main beam steel plate 4 to be welded in this structure is composed of two steel plate workpieces spliced ​​together. Before formal welding, the operator needs to use spot welding to position it before using the fillet welding machine body 6 to perform fillet welding. The top of the fillet welding machine body 6 is fixedly connected to the bracket 7. The first adjusting arm 5 and the second adjusting arm 8 are rotatably connected to the two sides of the bracket 7, respectively. One end of the first adjusting arm 5 has an opening, and a connecting arm 12 is inserted into the opening. The connecting arm 12 and the first adjusting arm 5 are rotatably connected through a rotating shaft. The inner side of the connecting arm 12 is fixedly connected to the second connecting frame 13. The position of the connecting arm 12 and the first adjusting arm 5 can be locked by bolts. The inner side of the second connecting frame 13 is open. A second mounting base 14 is connected via a pivot, and a second limiting wheel 15 is rotatably connected to the inner side of the second mounting base 14. The positions of the second mounting base 14 and the second connecting frame 13 can be locked with bolts. In this structure, the angles of the second connecting frame 13 and the connecting arm 12 can be adjusted to facilitate the contact of the second limiting wheel 15 with the surface of the main beam steel plate 4 to be welded. A first connecting frame 10 is provided at one end of the second adjusting arm 8. A first mounting base 11 is connected to the inner side of the first connecting frame 10 via a pivot, and a first limiting wheel 9 is rotatably connected to the inner side of the first mounting base 11. The first mounting base 11 and the first connecting frame 10 can also be locked with bolts. In this structure, the angle of the first limiting wheel 9 can be adjusted to facilitate the contact of the first limiting wheel 9 with the other side of the main beam steel plate 4 to be welded.The first limiting wheel 9 and the second limiting wheel 15 work together to clamp the main beam steel plate 4 to be welded, improving the stability of the fillet welding machine body 6. The first limiting wheel 9 is rotatably mounted on the inner side of the first connecting frame 10, and it fits against one side of the main beam steel plate 4 to be welded. The second limiting wheel 15 is rotatably mounted on one end of the first adjusting arm 5, and it fits against the other side of the main beam steel plate 4 to be welded.

[0019] Working principle: When using the welding device for the main beam production and processing of this bridge crane, firstly, place the fillet welding machine body 6 on top of the spot-welded main beam steel plate 4 to be welded, so that the support wheel 2 and cleaning brush 32 on one side of the fillet welding machine body 6 are attached to the corner of the main beam steel plate 4 to be welded. Then, adjust and lock the angle of the first adjusting arm 5 and the second adjusting arm 8. Then, adjust the angle of the second connecting frame 13 and the first mounting seat 11 inside the first adjusting arm 5 and the second adjusting arm 8, so that the first limiting wheel 9 and the second limiting wheel 15 inside the second connecting frame 13 and the first mounting seat 11 are attached to the two sides of the main beam steel plate 4 to be welded, so as to fix the position of the fillet welding machine body 6. Then, the fillet welding machine body 6 is opened to carry out welding work.

[0020] Although the present invention 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 the present invention should be included within the protection scope of the present invention.

Claims

1. A welding device for manufacturing and processing the main beam of a bridge crane, comprising a main beam steel plate (4) to be welded, and a fillet welding machine body (6) placed on the main beam steel plate (4), characterized in that: The top of the main body (6) of the fillet welding machine is fixedly connected to a bracket (7). The first adjusting arm (5) and the second adjusting arm (8) are rotatably connected to both sides of the bracket (7). One end of the second adjusting arm (8) is provided with a first connecting frame (10). The inner side of the first connecting frame (10) is rotatably provided with a first limiting wheel (9). The first limiting wheel (9) is attached to one side of the main beam steel plate (4) to be welded. One end of the first adjusting arm (5) is rotatably provided with a second limiting wheel (15). The second limiting wheel (15) is attached to the other side of the main beam steel plate (4) to be welded.

2. The welding device for producing and processing the main girder of a bridge crane according to claim 1, characterized in that: The inner side of the first connecting frame (10) is connected to the first mounting base (11) via a rotating shaft. The inner side of the first mounting base (11) is rotatably connected to the first limiting wheel (9). The first mounting base (11) and the first connecting frame (10) can also be locked by bolts.

3. The welding device for producing and processing the main girder of a bridge crane according to claim 1, characterized in that: An opening is provided at one end of the first adjusting arm (5), and a connecting arm (12) is inserted inside the opening. The connecting arm (12) and the first adjusting arm (5) are rotatably connected by a rotating shaft. A second connecting frame (13) is fixedly connected to the inner side of the connecting arm (12). The positions of the connecting arm (12) and the first adjusting arm (5) can be locked by bolts.

4. The welding device for producing and processing the main girder of a bridge crane according to claim 3, characterized in that: The inner side of the second connecting frame (13) is connected to the second mounting base (14) via a rotating shaft. The inner side of the second mounting base (14) is rotatably connected to the second limiting wheel (15). The positions of the second mounting base (14) and the second connecting frame (13) can be locked by bolts.

5. The welding device for producing and processing the main girder of a bridge crane according to claim 1, characterized in that: The first support frame (1) is fixedly connected to one side of the main body (6) of the fillet welding machine. A support wheel (2) is rotatably connected to the inner side of one end of the first support frame (1). The support wheel (2) is attached to the inner side of the main beam steel plate (4) to be welded.

6. The welding device for producing and processing the main girder of a bridge crane according to claim 1, characterized in that: A cleaning component (3) is provided on one side of the main body (6) of the fillet welder; The cleaning component (3) includes a second support frame (31) located at the bottom of the first support frame (1), and the cleaning component (3) is arranged symmetrically about the bisector of the fillet welder body (6).

7. The welding device for producing and processing the main girder of a bridge crane according to claim 6, characterized in that: A cleaning brush (32) is fixedly connected to one side of the second support frame (31), and one side of the cleaning brush (32) is attached to the corner of the main beam steel plate (4) to be welded.

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