Box beam groove welding device
By combining a laser scanner with front and rear welding heads, the problem of uneven flux caused by irregular steel plate bevels and flatness errors was solved, thus improving welding quality and efficiency.
Patent Information
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- DONGFANGCHENG INTELLIGENT MANUFACTURING IND PARK (HEBEI) CO LTD
- Filing Date
- 2025-05-11
- Publication Date
- 2026-04-21
AI Technical Summary
Existing box girder welding equipment suffers from uneven flux application when dealing with irregular steel plate bevels and flatness errors on the sides of the steel plates. This results in the welding torch being unable to accurately reach the welding position, affecting welding quality and strength. Furthermore, different bevel angles and widths require different flux amounts.
A laser scanner is used to scan the bevel width and tilt angle in real time, controlling the amount of flux and the movement of the welding head. Combined with the design of the front and rear welding heads, this ensures the precise application of flux and the accuracy of the welding position.
It enables precise control of flux and improves welding quality, thereby increasing welding efficiency and quality.
Smart Images
Figure CN224143775U_ABST
Abstract
Description
Technical Field
[0001] This utility model belongs to the technical field of welding equipment, and in particular relates to a bevel welding device for box beams. Background Technology
[0002] In steel structure manufacturing and other fields, box girders require welding two adjacent steel plates together. Currently, box girder welding uses bevel welding, with the angle between the weld bevel and the horizontal plane typically between 25 and 45 degrees. The current welding device includes an intermediate fixed frame and a base located below it. A power roller connected to a power mechanism is mounted on the base. Vertical support frames are mounted on the base on both sides of the intermediate fixed frame. A crossbeam is positioned between the two vertical support frames, and a transverse track is mounted on the crossbeam. A movable frame connected to a servo motor is mounted on the transverse track. A welding head frame and a flux rack are mounted on the movable frame. A welding head is mounted on the welding head frame, and a flux tube is mounted on the flux rack. The power mechanism drives the power roller to rotate, causing the vertical support frames to move back and forth. During this forward movement, the servo motor drives the welding head frame and flux rack to move left and right. The flux tube spreads flux within the bevel, and the welding head welds the two adjacent steel plates together. The welding device has the following defects: First, due to certain errors in the processing of the steel plate bevel, the bevel is irregular, or the flatness of the side of the steel plate is also incorrect during processing. The servo motor drives the welding head frame and flux rack to swing with a pre-set amplitude and frequency. When errors occur, the flux cannot be spread evenly, and the welding gun cannot reach the part that needs to be welded, resulting in poor welding strength and affecting the welding quality. Second, because the angle and width of the bevel are different, the amount of flux required is also different, resulting in inaccurate flux application and affecting the welding quality. Utility Model Content
[0003] The technical problem to be solved by this utility model is to provide a box girder bevel welding device that provides more precise flux, is applicable to various bevel welding, and produces high welding quality.
[0004] To solve the above problems, the technical solution adopted by the box girder beveling welding device of this utility model is as follows: it includes an intermediate fixed frame and a base located below the intermediate fixed frame. A power roller connected to a power mechanism is provided on the base. Vertical support frames are respectively provided on the base on both sides of the intermediate fixed frame. A crossbeam is provided between the two vertical support frames. A transverse track is provided on the crossbeam. A movable frame connected to a servo motor is provided on the transverse track. The servo motor is controlled by a control mechanism. A welding head frame and a flux rack are provided on the movable frame. A welding head is provided on the welding head frame. A flux tube is provided on the flux rack. A laser scanner frame is provided at the front end of the welding head frame. A laser scanner is provided on the laser scanner frame. The laser scanner is located at the front end of the welding head. The laser scanner is controlled by the control mechanism.
[0005] Its additional technical features are:
[0006] The welding head includes a front welding head located at the front and a rear welding head located at the rear. The rear welding head is vertical, and the lower end of the front welding head is inclined to the rear.
[0007] Compared with the prior art, the box girder beveling welding device provided by this utility model has the following advantages: Firstly, it includes an intermediate fixed frame and a base located below the intermediate fixed frame. A power roller connected to a power mechanism is installed on the base. Vertical support frames are respectively installed on the base on both sides of the intermediate fixed frame. A crossbeam is installed between the two vertical support frames. A transverse track is installed on the crossbeam. A movable frame connected to a servo motor is installed on the transverse track. The servo motor is controlled by a control mechanism. A welding head frame and a flux rack are installed on the movable frame. A welding head is installed on the welding head frame, and a flux tube is installed on the flux rack. A laser scanner frame is provided at the front end of the welding head holder, and a laser scanner is installed on the laser scanner frame. The laser scanner is located at the front end of the welding head and is connected to the control mechanism. The laser scanner at the front end forms an image of the width and tilt angle of the bevel, and then controls the speed and amplitude of the moving frame. This not only controls the amount of flux, but also controls the width of the welding head movement, making the flux application more precise and the welding quality higher. Secondly, since the welding head includes a front welding head located at the front and a rear welding head located at the rear, the rear welding head is vertical and the lower end of the front welding head is tilted backward, which not only improves the welding quality, but also improves the welding efficiency. Attached Figure Description
[0008] Figure 1 This is a schematic diagram of the structure of the box girder beveling welding device of this utility model;
[0009] Figure 2 A schematic diagram of the structure of the bevel welding device for the box girder without the intermediate fixing frame;
[0010] Figure 3 for Figure 2 Enlarged view of point A in the middle. Detailed Implementation
[0011] The structure and operating principle of the box girder beveling welding device of this utility model will be further described in detail below with reference to the accompanying drawings and specific embodiments.
[0012] like Figure 1 , Figure 2 and Figure 3 The diagram shows the structural design of the box girder beveling welding device of this utility model. The device includes an intermediate fixed frame 1 and a base 2 located below the intermediate fixed frame 1. A power roller 4, powered by a power mechanism 3, is mounted on the base 2. Vertical support frames 5 are mounted on the base 2 on both sides of the intermediate fixed frame 1. A crossbeam 6 is positioned between the two vertical support frames 5. A transverse track 7 is mounted on the crossbeam 6. A movable frame 9, powered by a servo motor 8, is mounted on the transverse track 7. The servo motor 8 is controlled by a control mechanism 16. A welding head frame 10 and a flux rack 11 are mounted on the movable frame 9. A welding head 12 is mounted on the welding head frame 10, and a flux tube 13 is mounted on the flux rack 11. A laser scanner frame 14 is mounted at the front end of the welding head frame 10, and a laser scanner 15 is mounted on the laser scanner frame 14. The laser scanner 15 is located at the front end of the welding head 12. The laser scanner 15 is controlled by the control mechanism 8.
[0013] The laser scanner 15 positioned at the front forms an image of the width and tilt angle of the bevel and transmits the signal to the control mechanism 8. The control mechanism 8 then controls the speed and amplitude of the moving frame 9, which not only controls the amount of flux but also the width of the welding head movement, making the flux application more precise and the welding quality higher.
[0014] The welding head 12 includes a front welding head 121 located at the front and a rear welding head 122 located at the rear. The rear welding head 122 is vertical, and the lower end of the front welding head 121 is inclined to the rear, which not only improves the welding quality but also improves the welding efficiency.
[0015] The scope of protection of this utility model is not limited to the above embodiments. Any structure that is the same as or similar to the structure of the box girder bevel welding device of this utility model falls within the scope of protection of this utility model.
Claims
1. A box girder beveling welding device, comprising an intermediate fixed frame and a base located below the intermediate fixed frame, a power roller connected to a power mechanism being mounted on the base, vertical support frames being mounted on the base on both sides of the intermediate fixed frame, a crossbeam being mounted between the two vertical support frames, a transverse rail being mounted on the crossbeam, a movable frame connected to a servo motor being mounted on the transverse rail, the servo motor being connected to a control mechanism, a welding head holder and a flux holder being mounted on the movable frame, a welding head being mounted on the welding head holder, and a flux tube being mounted on the flux holder, characterized in that: A laser scanner frame is provided at the front end of the welding head frame, and a laser scanner is provided on the laser scanner frame. The laser scanner is located at the front end of the welding head and is controlled and connected to the control mechanism.
2. The box beam groove welding apparatus of claim 1, wherein: The welding head includes a front welding head located at the front and a rear welding head located at the rear. The rear welding head is vertical, and the lower end of the front welding head is inclined to the rear.