Thin plate high-speed fillet weld welding auxiliary tool

Abstract

The embodiment of the invention provides a thin plate high-speed fillet weld welding auxiliary tool which comprises a fixing part, a welding part, a welding part, a welding part and a clamping part, and the fixing part is fixed to the front end of a welding gun sleeve of a welding gun; the guide wheel is arranged at one end, far away from the welding gun sleeve, of the fixing part, and is positioned at the front end or the rear end, provided with a welding wire, of the welding sleeve; wherein after arcing of the welding gun, the guide wheel is pushed by the welding gun to walk, stable welding of the welding wire to the to-be-welded part is achieved, and the guide wheel is located at the front end of the welding wire in the moving direction of the welding wire. A guide wheel made of copper or ceramic is additionally arranged at the front end or the rear end of a CO2 semi-automatic welding gun, so that the welding gun stably walks at a high speed in fillet welding seam welding at horizontal, transverse, vertical upward and upward positions and even vertical downward positions, high-speed welding of fillet welding seams of small welding legs at all positions is realized, the welding quality of the fillet welding seams is improved, and the welding deformation of a thin plate is reduced.

Description

Technical Field

[0001] The invention relates to the technical field of thin plate welding, in particular to a thin plate high-speed fillet weld welding auxiliary tool. Background Art

[0002] The weld leg size of a large number of thin plate segment fillet welds on ro-ro passenger ships and PCTC ships is required to be 3-4.5mm. Although automatic welding can be used in straight and unobstructed positions, welders can only use CO2 semi-automatic welding to weld a large number of small weld legs in other positions or positions with obstacles.

[0003] When welders use CO2 semi-automatic welding to weld small weld legs and fillet welds, the weld formation is uneven and the size of the small weld legs is difficult to control due to the poor stability and slow movement of the welder's handheld welding gun.

[0004] Due to the slow welding speed, the welding heat input increases, causing the weld leg size to exceed the standard and the welding deformation to increase.

[0005] Meanwhile, the prior art still has the following problems:

[0006] 1. Except for the horizontal position, CO2 semi-automatic welding can only be used in other positions or positions with obstacles, and the weld legs of small fillet welds are difficult to control;

[0007] 2. The overall welding speed is affected by the movement speed of the welder's welding gun hand, which makes it impossible to achieve high-speed welding and the overall welding efficiency is low;

[0008] 3. Due to the poor stability of the welder holding the welding torch when welding small fillet welds, the fillet welds are unevenly formed, which increases the subsequent welding seam grinding and repair work;

[0009] 4. Since CO2 semi-automatic welding has a slow welding speed, it will increase the welding heat input and increase the welding deformation of thin plates compared to high-speed welding, and a large amount of pyrotechnic correction will be required later. Summary of the Invention

[0010] In view of the aforementioned problems existing in the prior art, the present invention provides a high-speed fillet weld auxiliary tool for thin plates. By adding a copper or ceramic guide wheel to the front or rear end of a CO2 semi-automatic welding torch, the torch can be moved stably and at high speed during fillet weld welding in horizontal, horizontal, vertical upward, and even vertical downward positions. This enables high-speed welding of small-leg fillet welds in all positions, improves fillet weld quality, and reduces deformation in thin plate welding. This contributes to the high-quality construction of PCTC vessels and ro-ro passenger ferries.

[0011] An embodiment of the present invention provides a thin plate high-speed fillet weld auxiliary tool, comprising:

[0012] A fixing component, which is fixed to the front end of the welding gun sleeve of the welding gun;

[0013] A guide wheel is provided at one end of the fixing component away from the welding gun sleeve and is located at the front end or the rear end of the welding sleeve where the welding wire is provided;

[0014] After the welding gun strikes an arc, the guide wheel is pushed by the welding gun to move, thereby achieving stable welding of the welding wire to the part to be welded. In the moving direction of the welding wire, the guide wheel is located at the front end of the welding wire.

[0015] In some embodiments of the present invention, the fixing component is two connecting rods, and one end of the two connecting rods away from the welding gun sleeve is connected to the guide wheel, and the two connecting rods are arranged at an angle.

[0016] In some embodiments of the present invention, the two connecting rods connected to the guide wheel are also used to limit the guide wheel so that the guide wheel can only rotate within a cross section perpendicular to the center line of the corresponding rotation shaft.

[0017] In some embodiments of the present invention, the connecting rod closer to the welding wire is connected to the welding gun sleeve in a hinged manner;

[0018] The connecting rod farther from the welding wire is fixedly connected to the welding gun sleeve, and a telescopic rod and an adjusting member are provided on the connecting rod farther from the welding wire. The adjusting member is used to adjust the length of the telescopic rod, thereby adjusting the length of the connecting rod farther from the welding wire, thereby adapting to the change in length of the welding wire during welding.

[0019] In some embodiments of the present invention, during the welding process, when a new welding wire is installed, the connecting rod farther away from the welding wire is in a longer state. During the welding process, the length of the telescopic rod is shortened by adjusting the adjusting piece, thereby shortening the length of the connecting rod farther away from the welding wire to adapt to the continuously shortening welding wire.

[0020] In some embodiments of the present invention, the fixing component is provided with an adjustable component to adapt to changes in the length of the welding wire during the welding process.

[0021] Compared with the prior art, the beneficial effects of the thin plate high-speed fillet weld welding auxiliary tooling provided by the embodiment of the present invention are: it solves the problem that, except for the horizontal position, only CO2 semi-automatic welding can be used for other positions or positions with obstacles, and the weld legs of small weld legs and fillet welds are difficult to control; at the same time, it also solves the problem that the overall welding speed is affected by the movement speed of the welder's hand holding the welding gun, high-speed welding cannot be achieved, and the overall welding efficiency is low; further, it also solves the problem that the welder's hand-held welding gun has poor stability when welding small weld legs and the fillet weld is unevenly formed, which increases the subsequent welding seam grinding and repair work; in addition, it also solves the problem that the CO2 semi-automatic welding speed is slow, which increases the welding heat input compared to high-speed welding, increases the welding deformation of thin plates, and requires a large amount of pyrotechnic correction later. BRIEF DESCRIPTION OF THE DRAWINGS

[0022] Figure 1 A schematic diagram of a welding gun in a thin plate high-speed fillet weld auxiliary tooling provided by an embodiment of the present invention;

[0023] Figure 2 A schematic diagram of another type of welding gun in the thin plate high-speed fillet weld auxiliary tooling provided by an embodiment of the present invention;

[0024] Figure 3 A schematic diagram of the thin plate high-speed fillet weld auxiliary tooling provided by an embodiment of the present invention when welding to the left;

[0025] Figure 4 A schematic diagram of the thin plate high-speed fillet weld auxiliary tooling provided by an embodiment of the present invention when welding to the right;

[0026] Figure 5 A schematic diagram of the thin plate high-speed fillet weld auxiliary tooling provided by an embodiment of the present invention during vertical downward welding;

[0027] Figure 6 A schematic diagram of the thin plate high-speed fillet weld auxiliary tooling provided by an embodiment of the present invention during vertical welding;

[0028] Figure 7 A schematic diagram of the thin plate high-speed fillet weld auxiliary tooling provided by an embodiment of the present invention when welding fillet to the left;

[0029] Figure 8 A schematic diagram of the thin plate high-speed fillet weld auxiliary tooling provided by an embodiment of the present invention when welding the fillet to the right.

[0030] Reference numerals

[0031] 1. Fixed parts; 2. Welding gun sleeve; 3. Guide wheel; 4. Welding wire. DETAILED DESCRIPTION

[0032] In order to enable those skilled in the art to better understand the technical solution of the present invention, the present invention is described in detail below with reference to the accompanying drawings and specific embodiments.

[0033] Various aspects and features of the present application are described herein with reference to the accompanying drawings.

[0034] These and other characteristics of the present application will become apparent from the following description of a preferred form of embodiment given as a non-limiting example with reference to the accompanying drawings.

[0035] It should also be understood that although the present application has been described with reference to certain specific examples, those skilled in the art will be able to implement many other equivalent forms of the present application that have the features described in the claims and are therefore within the scope of protection defined thereby.

[0036] The above and other aspects, features and advantages of the present application will become more apparent from the following detailed description when taken in conjunction with the accompanying drawings.

[0037] Specific embodiments of the present application will be described below with reference to the accompanying drawings; however, it should be understood that the embodiments described are merely examples of the present application and may be implemented in a variety of ways. Familiar and / or repetitive functions and structures are not described in detail to clarify the true intent based on the user's historical operations and to avoid obscuring the present application with unnecessary or redundant details. Therefore, the specific structural and functional details described herein are not intended to be limiting, but rather serve merely as a basis and representative basis for the claims to teach those skilled in the art to use the present application in a variety of ways with substantially any appropriate detailed structure.

[0038] This specification may use the phrases "in one embodiment," "in another embodiment," "in a further embodiment," or "in other embodiments," which may all refer to one or more of the same or different embodiments according to the present application.

[0039] The embodiment of the present invention provides a thin plate high-speed fillet weld auxiliary tooling, such as Figures 1 to 8 As shown, including:

[0040] A fixing component 1, which is fixed to the front end of the welding gun sleeve of the welding gun;

[0041] A guide wheel 3 is provided at one end of the fixing component 1 away from the welding gun sleeve and is located at the front end or rear end of the welding sleeve 2 where the welding wire 4 is provided;

[0042] After the welding gun strikes an arc, the welding gun pushes the guide wheel 3 to move, thereby achieving stable welding of the welding wire 4 to the part to be welded. In the moving direction of the welding wire 4, the guide wheel 3 is located at the front end of the welding wire 4.

[0043] In some embodiments of the present invention, the fixing component 1 is two connecting rods, and one end of the two connecting rods away from the welding gun sleeve is connected to the guide wheel 3, and the two connecting rods are arranged at an angle.

[0044] In this embodiment, the two connecting rods connected to the guide wheel 3 are also used to limit the guide wheel 3 so that the guide wheel 3 can only rotate within a cross section perpendicular to the center line of the corresponding rotation shaft.

[0045] In this embodiment, the connecting rod closer to the welding wire 4 is connected to the welding gun sleeve in a hinged manner;

[0046] The connecting rod farther away from the welding wire 4 is fixedly connected to the welding gun sleeve, and a telescopic rod and an adjusting member are provided on the connecting rod farther away from the welding wire 4. The adjusting member is used to adjust the length of the telescopic rod, and then adjust the length of the connecting rod farther away from the welding wire 4, thereby adapting to the length change of the welding wire 4 during welding.

[0047] Specifically, during the welding process, when the welding wire 4 is newly installed, the connecting rod farther away from the welding wire 4 is in a longer state. During the welding process, the length of the telescopic rod is shortened by adjusting the adjusting piece, thereby shortening the length of the connecting rod farther away from the welding wire 4 to adapt to the continuously shortening welding wire 4.

[0048] In some embodiments of the present invention, the fixing component 1 is provided with an adjustable component to adapt to changes in the length of the welding wire 4 during the welding process.

[0049] In the specific use process, the copper or ceramic guide wheel 3 can be connected to the CO2 welding gun sleeve through a connecting rod. According to the installation position of the guide wheel 3, it is divided into the welding gun form 1 where the guide wheel 3 is behind the welding wire 4. For details, please refer to Figure 1 As shown, and the guide wheel 3 before and after welding the welding gun form 2, please refer to Figure 2 shown.

[0050] When welding, place the guide wheel 3 at the angle between the two structures. After the arc is started, you only need to push the welding gun to move to achieve welding movement. When welding to the left, use the welding gun form 1. For details, see Figure 3 and Figure 7 As shown, when welding to the right, use welding gun type 2. For details, please refer to Figure 4 and Figure 8 As shown, when welding vertically downward, use welding gun type 1. For details, see Figure 5 As shown, when welding vertically, use welding gun type 2. For details, see Figure 6 shown.

[0051] Through the above technical solutions, it can be seen that the thin plate high-speed fillet weld welding auxiliary tooling provided by the above embodiment of the present invention solves the problem that, except for the horizontal position, only CO2 semi-automatic welding can be used for other positions or positions with obstacles, and the weld legs of small weld legs and fillet welds are difficult to control; at the same time, it also solves the problem that the overall welding speed is affected by the movement speed of the welder holding the welding gun, high-speed welding cannot be achieved, and the overall welding efficiency is low; further, it also solves the problem that the welder's hand-held welding gun has poor stability when welding small weld legs and the fillet weld is unevenly formed, which increases the subsequent welding seam grinding and repair work; in addition, it also solves the problem that the CO2 semi-automatic welding speed is slow, which increases the welding heat input compared to high-speed welding, increases the welding deformation of thin plates, and requires a large amount of pyrotechnic correction later.

[0052] It can be widely promoted and applied to thin plate fillet welds in the construction area of ​​PCTC ships and ro-ro passenger ships, improving welding quality and efficiency, and effectively controlling weld leg size and welding deformation.

[0053] It provides a new solution for high-speed, high-quality CO2 semi-automatic welding of small fillet welds in horizontal, transverse, vertical upward, overhung, and even vertical downward positions on ro-ro passenger and PCTC ships. It makes up for the company's inability to effectively control weld legs and welding deformation in CO2 semi-automatic welding of small fillet welds, improves welding efficiency, reduces welding heat input, and reduces welding deformation of thin plates.

[0054] The above embodiments are merely exemplary embodiments of the present invention and are not intended to limit the scope of the present invention. The scope of protection of the present invention is defined by the claims. Those skilled in the art may make various modifications or equivalent substitutions to the present invention within the spirit and scope of protection of the present invention, and such modifications or equivalent substitutions shall also be deemed to fall within the scope of protection of the present invention.

Claims

1. A thin plate high-speed fillet weld welding auxiliary tool, characterized in that: include: A fixing component, which is fixed to the front end of a welding gun sleeve of the welding gun; A guide wheel, which is arranged at one end of the fixing component away from the welding gun sleeve and is located at the front end or rear end of the welding sleeve where the welding wire is arranged; After the welding gun strikes an arc, the welding gun pushes the guide wheel to move, thereby achieving stable welding of the welding wire to the part to be welded. In the moving direction of the welding wire, the guide wheel is located at the front end of the welding wire.

2. The thin plate high-speed fillet weld auxiliary tooling according to claim 1 is characterized in that: The fixing components are two connecting rods, and one end of the two connecting rods away from the welding gun sleeve is connected to the guide wheel, and the two connecting rods are arranged at an angle.

3. The thin plate high-speed fillet weld auxiliary tooling according to claim 2 is characterized in that: The two connecting rods connected to the guide wheel are also used to limit the guide wheel so that the guide wheel can only rotate in a cross section perpendicular to the center line of the corresponding rotating shaft.

4. The thin plate high-speed fillet weld auxiliary tooling according to claim 3 is characterized in that: The connecting rod closer to the welding wire is connected to the welding gun sleeve in a hinged manner; A connecting rod farther from the welding wire is fixedly connected to the welding gun sleeve, and a telescopic rod and an adjusting member are provided on the connecting rod farther from the welding wire. The adjusting member is used to adjust the length of the telescopic rod, thereby adjusting the length of the connecting rod farther from the welding wire, thereby adapting to the change in length of the welding wire during welding.

5. The thin plate high-speed fillet weld auxiliary tooling according to claim 4 is characterized in that: During the welding process, when a new welding wire is installed, the connecting rod farther away from the welding wire is in a longer state. During the welding process, the length of the telescopic rod is shortened by adjusting the adjusting piece, thereby shortening the length of the connecting rod farther away from the welding wire to adapt to the continuously shortening welding wire.

6. The thin plate high-speed fillet weld auxiliary tooling according to claim 1 is characterized in that: The fixing component is provided with an adjustable component to adapt to the change of the length of the welding wire during the welding process.

7. The thin plate high-speed fillet weld auxiliary tooling according to claim 1 is characterized in that: The guide wheel is made of copper or ceramic.

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