Laser longitudinal seam welding tool for thin-walled cylinder

Abstract

The utility model belongs to the related technical field of thin-wall cylinder welding equipment, and discloses a thin-wall cylinder laser longitudinal seam welding tool which is of a frame structure composed of a top plate unit, a side plate unit and a bottom plate jointly, the top plate unit comprises two top plates which are horizontally and oppositely arranged, the two top plates are respectively borne and fixed on a top beam at the bottom, and the side plate unit is connected with the bottom plate. A horizontal gap between the two top plates is used for placing a gun head of a laser welding gun; the side plate unit comprises two side plates which are vertically and oppositely arranged, and the top beams are correspondingly installed on the side plates and can move up and down in the vertical direction and drive the top beams borne on the side plates to move up and down at the same time. The bottom plate is a horizontally-arranged plate-shaped base, and the side plates are installed on the bottom plate and can move left and right in the horizontal direction and drive the top beam and the top plate installed on the side plates to move left and right at the same time. According to the longitudinal seam linear welding device, linear welding of longitudinal seams is rapidly and stably achieved in the mode that the structure is compact, control is convenient, and welding seams are uniform, and the welding quality and the welding efficiency of the longitudinal seams are effectively improved.

Description

Technical Field

[0001] The utility model belongs to the technical field related to thin-walled cylinder welding equipment, and more specifically relates to a thin-walled cylinder laser longitudinal seam welding tool. Background Art

[0002] Currently, laser welding of thin-walled cylinders faces challenges in controlling the longitudinal seam speed and uniformity. Specifically, too slow a speed can easily lead to penetration, while too fast a speed makes it difficult to achieve full penetration. Thin-walled cylinders are prone to shrinkage and movement during welding, and welding can be unstable due to varying welder skills, often resulting in substandard weld quality.

[0003] Several existing solutions employ welding fixtures. However, these longitudinal seam welding fixtures lack a means to adjust the weld gap and are difficult to operate, making them difficult to meet the requirements of laser welding, especially longitudinal seam laser welding. Consequently, further research and improvements are urgently needed in this field to better meet the quality requirements of thin-walled cylinder welding. Utility Model Content

[0004] In response to one or more of the above-mentioned defects or needs of the prior art, the utility model provides a thin-walled cylinder laser longitudinal seam welding tool, which fully combines the structural characteristics and processing requirements of the thin-walled cylinder itself, and through re-study and improvement of the overall structural composition and setting method of its longitudinal seam welding equipment, it can quickly and stably achieve straight-line welding of the longitudinal seam in a compact structure, easy to operate and uniform weld, and effectively improve the welding quality and welding efficiency of the longitudinal seam.

[0005] To achieve the above-mentioned purpose, according to the present invention, a thin-walled cylindrical laser longitudinal seam welding tool is provided. The welding tool has a frame structure composed of a top plate unit, a side plate unit and a bottom plate, and is characterized by:

[0006] The top plate unit includes two horizontally opposed top plates, each of which is supported and fixed on a top beam at the bottom, and a horizontal gap between the two top plates is used to place a gun head of a laser welding gun;

[0007] The side panel unit includes two vertically opposite side panels, and the top beam is correspondingly mounted on each of the side panels and can move up and down along the vertical direction, while driving the top panel supported thereon to perform up and down movement;

[0008] The bottom plate is a horizontally arranged plate-shaped base, and the side plates are all installed on the bottom plate and can move left and right along the horizontal direction, while driving the top beam and the top plate installed thereon to perform left and right movements.

[0009] Through the above conception, when performing laser welding of the longitudinal seam of a thin-walled cylinder, the calibrated thin-walled cylinder is first placed in the preliminarily assembled welding tooling, and the two side plates are adjusted to clamp the cylinder to prevent the cylinder from moving significantly due to welding shrinkage; then, the longitudinal seam to be welded is made to face upwards corresponding to the gap between the two top plates, and the two side plates and the two top beams are moved left and right and up and down, so that the two top plates can be easily driven to adjust their height and gap size; finally, the laser welding gun head is placed in the gap between the two tops after adjustment, which is convenient for applying force and can more accurately contact the longitudinal seam of the cylinder, thereby dragging it at a uniform speed along the longitudinal seam, completing the entire longitudinal seam laser process more quickly and stably, and obtaining a more uniform and better quality weld.

[0010] As a further preferred embodiment of the present invention, vertical guide rails are processed on the side panels, and the top beam can move up and down along the vertical guide rails and is positioned by screws.

[0011] As a further preferred embodiment of the present invention, a horizontal guide rail is processed on each side of the bottom plate, and the side plates can move left and right along the horizontal guide rail and are positioned by screws.

[0012] As a further preferred embodiment of the present invention, a groove is provided on the upper surface of the top plate for accommodating a positioning laser welding gun.

[0013] As a further preference of the present invention, each of the above components is made of stainless steel.

[0014] As a further preferred embodiment of the present invention, each of the above components adopts a modular structure.

[0015] In general, the above technical solutions conceived by the present invention have the following technical advantages compared with the existing technology:

[0016] (1) Aiming at the problem of difficulty in welding the longitudinal seam of thin-walled cylinders, the utility model has made targeted research and improvements on the overall structural composition and specific setting method of the welding tool. By designing a top plate that can move left and right and up and down, the horizontal gap between the side plates can be adjusted more flexibly and freely. In this way, it is convenient to apply force and can contact the longitudinal seam of the cylinder more accurately. Therefore, the longitudinal seam can be dragged at a uniform speed along the longitudinal seam, and the entire longitudinal seam laser process can be completed more quickly and stably.

[0017] (2) The utility model also designs side plates that can move left and right, which not only allows the relative position to be adjusted according to the size of the cylinder, but also effectively prevents the cylinder from moving significantly due to welding shrinkage during the laser welding process;

[0018] (3) In the present invention, the muzzle of the laser welding gun is placed in the gap between the two top plates, so that the muzzle can be stably applied to the horizontal plane, which not only makes it easy to control the welding speed, but also allows the straight line welding of the longitudinal seam of the cylinder to be achieved by relying on the gap, further improving the efficiency and quality of the processing operation;

[0019] (4) The longitudinal seam welding tooling of the utility model has a compact overall structure and is easy to operate, which can improve the adaptability under various working conditions. At the same time, it effectively solves the problem that the positioning gap of the existing fixture cannot be adjusted, and thus has good practical value and application prospects. BRIEF DESCRIPTION OF THE DRAWINGS

[0020] Figure 1 This is a structural stereogram of a thin-walled cylinder laser longitudinal seam welding tool provided in a preferred embodiment of the present application;

[0021] Figure 2 yes Figure 1 A top view of the structure of the top shown in ;

[0022] Figure 3 yes Figure 1 A top view of the structure of the top beam shown in FIG;

[0023] Figure 4 yes Figure 1 A top view of the structure of the side panel shown in FIG;

[0024] Figure 5 yes Figure 1 A top view of the structure of the bottom plate shown in FIG;

[0025] Throughout the drawings, the same reference numerals are used to denote the same elements or structures, wherein:

[0026] 1-top plate; 2-top beam; 3-side plate; 4-bottom plate. DETAILED DESCRIPTION

[0027] In order to make the purpose, technical solutions and advantages of this application more clear, the following further describes this application in detail with reference to the accompanying drawings and embodiments. It should be understood that the specific embodiments described herein are only used to explain this application and are not intended to limit this application.

[0028] It should be understood that expressions such as "include" and "may include" used in this application indicate the existence of the disclosed functions, operations, or constituent elements, and do not limit one or more additional functions, operations, and constituent elements. In this application, terms such as "include" and / or "have" may be interpreted as indicating a specific characteristic, number, operation, constituent element, component, or combination thereof, but may not be interpreted as excluding the existence or possibility of adding one or more other characteristics, numbers, operations, constituent elements, components, or combinations thereof.

[0029] It should be understood that the terms "center", "up", "down", "front", "back", "left", "right", "vertical", "horizontal", "inside", "outside", "clockwise", "counterclockwise", "axial", "radial", "circumferential", etc., indicating the orientation or position relationship, are based on the orientation or position relationship shown in the accompanying drawings, and are only for the convenience of describing the present application and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and therefore cannot be understood as a limitation on the present application.

[0030] Furthermore, the terms "first" and "second" are used for descriptive purposes only and should not be construed as indicating or implying relative importance or implicitly specifying the number of the technical features being referred to. Thus, a feature defined as "first" or "second" may explicitly or implicitly include one or more of the features. Throughout the description of this application, "plurality" means two or more, unless otherwise specifically defined.

[0031] In this application, unless otherwise specified or limited, the terms "mounted," "connected," "connect," "fixed," etc. should be understood broadly. For example, they can refer to fixed connection, detachable connection, or integral connection; mechanical connection or electrical connection; direct connection or indirect connection through an intermediate medium; or internal communication between two components. Those skilled in the art will understand the specific meanings of the above terms in this application based on specific circumstances.

[0032] Figure 1 This is a structural stereogram of the thin-walled cylinder laser longitudinal seam welding tool provided by the preferred embodiment of this application. Figure 1 To explain the present invention in more detail.

[0033] Reference Figure 1 According to the utility model, the thin-walled cylinder laser longitudinal seam welding tool is a frame structure composed of a top plate unit, a side plate unit and a bottom plate.

[0034] See also Figure 2 The top plate unit includes two horizontally opposed top plates 1, each of which is supported and fixed on the top beam 2 at the bottom, and the horizontal gap between the two top plates 1 is used to place the gun head of the laser welding gun; see also Figure 2 and Figure 3 The side panel unit includes two side panels 3 vertically opposite to each other, and the top beam 2 is correspondingly mounted on each of the side panels 3 and can move up and down along the vertical direction, while driving the top beam 2 supported thereon to perform up and down movement;

[0035] In addition, see Figure 4 The bottom plate 4 is a horizontally arranged plate-shaped base, and the side plates 3 are all installed on the bottom plate 4 and can move left and right along the horizontal direction, while driving the top beam 2 and the top plate 1 installed thereon to perform left and right movements.

[0036] More specifically, the top plate 1 can be connected to the top beam 2 and the side plates 3, for example, by screws, and can be adjusted up and down and left and right within a certain range. The relative positions of the two top plates 1 are adjusted mainly according to the actual size of the thin-walled cylinder and the longitudinal seam width requirements, and the gap between the top plates 1 is adjusted so that the laser welding gun head can be placed in the gap to exert force and contact the longitudinal seam of the cylinder. At the same time, the cooperation with the side plates can clamp the cylinder to prevent the cylinder from moving.

[0037] The top beam 2 is also connected to the top plate 1 and the side plates 3 by screws. It is mainly used to adjust the position of the top plate 1 and provide support. It can drive the top plate 1 to move up and down and left and right. The two side plates 3 mainly play a supporting role. At the same time, through the connection with the bottom plate 4, the position of the cylinder can be adjusted according to the size of the cylinder to clamp the cylinder and prevent large movement of the cylinder due to welding shrinkage.

[0038] In addition, the bottom plate is connected to the side plates 3, which is mainly used to locate the relative positions of the two side plates 2, and also plays a fixed support role. The relative positions of the side plates can be adjusted according to the size of the cylinder.

[0039] The following will explain in detail the use process of the welding tool according to the present utility model.

[0040] First, place the calibrated cylinder into the preliminarily assembled tooling, adjust the side panels to clamp the cylinder (note that the longitudinal seam faces upward), and then adjust the top plate height and gap size to facilitate the placement of the laser welding gun. After adjustment, tighten the screws to fix it, adjust the welding parameters, adjust the angle of the welding gun, place the top plate, and drag it along the longitudinal seam at a uniform speed. This will allow the longitudinal seam to be welded quickly and stably, resulting in a more uniform weld.

[0041] In summary, according to the welding tool of the present invention, the clamping position can be adjusted according to the size of the cylinder, and the longitudinal seam of the cylinder can be fixed in the gap between the two top plates, and the size of the gap can be adjusted according to demand; the muzzle of the welding gun can be placed in the gap of the top plate. Since the muzzle can focus on the top plate, it is easy to control the welding speed, and the linear welding of the longitudinal seam can be achieved based on the gap. It is easy to operate, can improve the quality of the longitudinal seam welding, and is simple to operate, so it has good practical value and application prospects.

[0042] It is easy for those skilled in the art to understand that the above is only a preferred embodiment of the present application and is not intended to limit the present application. Any modifications, equivalent substitutions and improvements made within the spirit and principles of the present application should be included in the scope of protection of the present application.

Claims

1. A thin-walled cylindrical laser longitudinal seam welding tool, the welding tool having a frame structure composed of a top plate unit, a side plate unit and a bottom plate, characterized by: The top plate unit comprises two horizontally opposed top plates (1), each of which is supported and fixed on a top beam (2) at the bottom, and a horizontal gap between the two top plates (1) is used to place a gun head of a laser welding gun; The side panel unit comprises two side panels (3) that are vertically opposed to each other, and the top beam (2) is correspondingly mounted on each of the side panels (3) and can move up and down along the vertical direction, while driving the top panel (1) supported thereon to perform up and down movement; The bottom plate (4) is a horizontally arranged plate-shaped base, and the side plates (3) are all mounted on the bottom plate (4) and can move left and right along the horizontal direction, while driving the top beam (2) and the top plate (1) mounted thereon to perform left and right movements.

2. The thin-walled cylinder laser longitudinal seam welding tool according to claim 1, characterized in that: The side panels (3) are machined with vertical guide rails, and the top beam (2) can move up and down along the vertical guide rails and is positioned using screws.

3. The thin-walled cylinder laser longitudinal seam welding tool according to claim 2, characterized in that: Horizontal guide rails are respectively processed on both sides of the bottom plate (4), and the side plates (3) can move left and right along the horizontal guide rails and are positioned by screws.

4. The thin-walled cylinder laser longitudinal seam welding tool according to claim 3, characterized in that: The upper surface of the top plate (1) is provided with a groove for accommodating a positioning laser welding gun.

5. The thin-walled cylinder laser longitudinal seam welding tool according to any one of claims 1 to 4, characterized in that: All of the above components are made of stainless steel.

6. The thin-walled cylinder laser longitudinal seam welding tool according to any one of claims 1 to 4, characterized in that: All of the above components adopt a modular structure.

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