A welding device for fuel tank end caps

Abstract

This utility model relates to the field of welding equipment technology, and more particularly to a welding device for fuel tank end caps. It includes a welding processing table, on the upper side of which a clamping assembly and a welding assembly are sequentially arranged. The welding assembly includes a structural top plate, with several folding rods fixedly connected to its lower side. A structural ring is fixedly installed at the lower end of each folding rod, and a welding torch is rotatably mounted on the lower side of the structural ring. A folding plate is fixedly connected to the side of the structural ring, and an electric telescopic rod is hinged between the folding plate and the welding torch. A structural inclined plate is fixedly connected to the side of the folding plate, and an installation plate is screwed onto the inner side of the structural inclined plate. A structural cylinder is fixedly installed on the installation plate, and an optical triangulation position sensor is fixedly installed inside the structural cylinder. This utility model, through its welding assembly, can drive the welding torch to continuously weld the outer side of the end cap, resulting in a smoother weld. Furthermore, by adjusting the different tilt angles of the welding torch, it can adapt to welding end caps of different outer diameters.

Description

Technical Field

[0001] This utility model relates to the field of welding equipment technology, and in particular to a welding device for fuel tank end caps. Background Technology

[0002] In the industrial production sector, fuel tanks are key energy storage components for various power equipment, and their structural integrity and sealing performance directly affect the operational safety and service life of the equipment.

[0003] Currently, the welding of fuel tank end caps mostly relies on traditional manual welding methods. However, this method has many insurmountable drawbacks: on the one hand, the accuracy of manual welding is greatly affected by factors such as the operator's skill level, physical condition, and concentration, which can easily lead to problems such as irregular welds and uneven welding depth, resulting in insufficient connection strength between the fuel tank end cap and the tank body, and even the risk of leakage, seriously affecting the stability of product quality; on the other hand, for fuel tank end caps of different specifications, manual welding requires frequent adjustments to the operating posture and welding parameters, which is not only cumbersome to switch between, but also difficult to achieve continuous production, greatly limiting the improvement of production efficiency.

[0004] Meanwhile, in traditional manual welding, it is difficult for operators to accurately monitor the real-time condition of the weld. Due to interference factors such as high temperature and arc light during the welding process, operators can only roughly observe the appearance of the weld with the naked eye and cannot detect subtle defects in the shape of the inside or outside of the weld in time. Problems are often only discovered through subsequent inspections after welding is completed, which results in high rework costs and further reduces production efficiency.

[0005] To address the shortcomings of the aforementioned technologies, we propose a welding device for the end cap of an oil tank. Utility Model Content

[0006] The purpose of this utility model is to address the shortcomings of existing technologies by proposing a welding device for the end cap of an oil tank.

[0007] To achieve the above objectives, the present invention adopts the following technical solution:

[0008] A welding device for an oil tank end cap includes a welding processing table. A clamping assembly and a welding assembly are sequentially arranged on the upper side of the welding processing table. The welding assembly includes a structural top plate, with several folding rods fixedly connected to the lower side of the structural top plate. A structural ring is fixedly installed at the lower end of each folding rod. A welding torch is rotatably installed on the lower side of the structural ring. A folding plate is fixedly connected to the side of the structural ring. An electric telescopic rod is hinged between the folding plate and the welding torch. A structural inclined plate is fixedly connected to the side of the folding plate. An installation plate is screwed onto the inner side of the structural inclined plate. A structural cylinder is fixedly installed on the installation plate, and an optical triangulation position sensor is fixedly installed inside the structural cylinder.

[0009] Furthermore, the clamping assembly includes four fixed seats, which are fixedly installed on the upper side of the welding processing table, and an electric push rod is fixedly installed on the inner side of each fixed seat.

[0010] By adopting the above technical solution, after the four sets of electric push rods are started, they drive the clamping plate to abut against the side wall of the oil tank, thereby achieving stable clamping of the oil tank from all sides. At the same time, the electric push rods have a certain degree of freedom of extension and retraction, thus enabling them to clamp oil tanks of different specifications.

[0011] Furthermore, a clamping plate is fixedly installed on the output end of the electric push rod, and a rubber pad is fixedly installed on the inner side of the clamping plate.

[0012] Furthermore, an oil tank is placed on the upper side of the welding processing table, and the side of the oil tank abuts against a rubber pad.

[0013] By adopting the above technical solution, the setting of the rubber pad improves the clamping stability of the clamping plate.

[0014] Furthermore, an end cap is spot-welded to the upper side of the oil tank.

[0015] Furthermore, a fixed frame is fixedly installed on the upper side of the welding processing table, and a controller is fixedly installed on the side wall of the fixed frame, with a high-definition display screen on the controller.

[0016] By adopting the above technical solution, the controller is used to control the working state of this device.

[0017] Furthermore, an electric lifting rod is fixedly installed on the upper side of the fixed frame, the output end of the electric lifting rod passes through to the lower side of the fixed frame, and a servo motor is fixedly installed on the lower side of the output end of the electric lifting rod. The lower side of the output end of the servo motor is screwed to the top plate of the structure.

[0018] Furthermore, a heat insulation cover is fixedly sleeved on the outside of the structural cylinder.

[0019] By adopting the above technical solution, the heat shield has a heat insulation function, preventing the high temperature of welding from interfering with the optical triangulation position sensor on the inside.

[0020] Furthermore, an installation groove is provided on the inner wall of the structural cylinder, and a vacuum transparent glass is fixedly installed inside the installation groove.

[0021] Furthermore, the vacuum transparent glass is made of tempered glass.

[0022] By adopting the above technical solution, tempered glass material has the advantage of high strength, which can provide protection for the inner optical triangulation position sensor.

[0023] Compared with related technologies, the fuel tank end cap welding device proposed in this utility model has the following beneficial effects:

[0024] In this invention, a welding device for an oil tank end cap is described. A welding assembly includes a welding torch rotatably mounted on the lower side of a structural ring. The welding angle of the torch can be adjusted via an electric telescopic rod, allowing the torch to adapt to welding end caps of different outer diameters by adjusting the tilt angle. By rotating the top plate, the welding torch continuously welds the outer side of the end cap, resulting in a smoother weld. Additionally, an optical triangulation position sensor is installed on the side of the welding torch. This sensor projects a laser onto the weld seam. The controller collects the reflected image, calculates the three-dimensional contour using triangulation, and processes the data. The processed weld seam image is then displayed on a high-definition screen, allowing the operator to monitor the weld seam's condition in real time and adjust the welding torch's output power accordingly. This enables real-time control of the weld seam quality and ensures high-quality welding. Attached Figure Description

[0025] Figure 1 This is a three-dimensional structural diagram of a welding device for an oil tank end cap proposed in this utility model;

[0026] Figure 2 This is a partial three-dimensional structural diagram of a welding device for an oil tank end cap proposed in this utility model;

[0027] Figure 3 Schematic diagram of the three-dimensional structure of the welding assembly Figure 1 ;

[0028] Figure 4 Schematic diagram of the three-dimensional structure of the welding assembly Figure 2 ;

[0029] Figure 5 This is a partial three-dimensional structural diagram of the welding assembly.

[0030] In the diagram: 1. Welding processing table; 2. Fixed frame; 3. Controller; 4. Clamping assembly; 41. Fixed base; 42. Electric push rod; 43. Clamping plate; 5. Electric lifting rod; 6. Servo motor; 7. Welding assembly; 71. Structural top plate; 72. Folding rod; 73. Structural ring; 74. Welding torch; 75. Folding plate; 76. Electric telescopic rod; 77. Structural inclined plate; 78. Mounting plate; 79. Heat insulation cover; 710. Structural cylinder; 711. Optical triangulation position sensor; 712. Mounting groove; 8. Oil tank; 81. End cap. Detailed Implementation

[0031] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments of the present utility model. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments.

[0032] Reference Figures 1-5 A welding device for an oil tank end cap includes a welding processing table 1. A clamping assembly 4 and a welding assembly 7 are sequentially arranged on the upper side of the welding processing table 1. The welding assembly 7 includes a structural top plate 71. A plurality of folding rods 72 are fixedly connected to the lower side of the structural top plate 71. A structural ring 73 is fixedly installed at the lower end of the folding rods 72. A welding torch 74 is rotatably installed on the lower side of the structural ring 73. A folding plate 75 is fixedly connected to the side of the structural ring 73. An electric telescopic rod 76 is hinged between the folding plate 75 and the welding torch 74. A structural inclined plate 77 is fixedly connected to the side of the folding plate 75. An installation plate 78 is screwed onto the inner side of the structural inclined plate 77. A structural cylinder 710 is fixedly installed on the installation plate 78. An optical triangulation position sensor 711 is fixedly installed on the inner side of the structural cylinder 710.

[0033] In this embodiment, the clamping assembly 4 includes four fixed seats 41, which are fixedly installed on the upper side of the welding processing table 1. An electric push rod 42 is fixedly installed on the inner side of the fixed seat 41. A clamping plate 43 is fixedly installed on the output end of the electric push rod 42. A rubber pad is fixedly installed on the inner side of the clamping plate 43. An oil tank 8 is placed on the upper side of the welding processing table 1. The side of the oil tank 8 abuts against the rubber pad. An end cap 81 is spot-welded to the upper side of the oil tank 8.

[0034] With the above structure, starting the electric push rod 42 can drive the inner clamping plate 43 to clamp the side wall of the oil tank 8. The rubber pad improves the clamping stability of the clamping plate 43.

[0035] In this embodiment, a fixed frame 2 is fixedly installed on the upper side of the welding processing table 1, and a controller 3 is fixedly installed on the side wall of the fixed frame 2. A high-definition display screen is provided on the controller 3. An electric lifting rod 5 is fixedly installed on the upper side of the fixed frame 2. The output end of the electric lifting rod 5 passes through to the lower side of the fixed frame 2, and a servo motor 6 is fixedly installed on the lower side of the output end of the electric lifting rod 5. The lower side of the output end of the servo motor 6 is screwed to the top plate 71 of the structure.

[0036] With the above structure, after the electric lifting rod 5 is started, it can drive the welding component 7 on the lower side to move up and down. When welding is required, it can drive the lower end of the welding gun 74 to approach the welding point, so as to facilitate welding of the end cover 81. During the welding process, the servo motor 6 drives the welding gun 74 on the lower side to rotate, so that the welding gun 74 can perform continuous circumferential welding on the side of the end cover 81, making the weld more regular.

[0037] In this embodiment, a heat insulation cover 79 is fixedly sleeved on the outer side of the structural cylinder 710, and an installation groove 712 is opened on the inner wall of the structural cylinder 710. A vacuum transparent glass is fixedly installed inside the installation groove 712. The vacuum transparent glass is made of tempered glass.

[0038] Through the above structure, the heat shield 79 and the vacuum transparent glass ensure that the heat during welding will not affect the optical triangulation position sensor 711 on the inside, thus ensuring the working stability of the optical triangulation position sensor 711.

[0039] In this utility model, during use:

[0040] Workpiece placement and preliminary positioning

[0041] The fuel tank 8 to be welded is placed on the upper side of the welding table 1, ensuring that the opening of the fuel tank 8 faces upwards. Then, the end cap 81 is aligned with the edge of the opening of the fuel tank 8, and the end cap 81 is initially fixed to the fuel tank 8 by spot welding to prevent relative displacement between the two during the welding process. Subsequently, the electric push rods 42 on the four fixing seats 41 extend synchronously, pushing the clamping plate 43 at the output end closer to the fuel tank 8 until the rubber pad on the inner side of the clamping plate is in tight contact with the side wall of the fuel tank 8. The fuel tank 8 is stably clamped by four sets of symmetrically distributed clamping forces; the rubber pad can increase friction and prevent excessive clamping force from damaging the surface of the fuel tank, while the extension and retraction freedom of the electric push rods can be adapted to fuel tanks of different specifications.

[0042] The electric lifting rod 5 on the fixed frame 2 extends, driving the servo motor 6, the structural top plate 71, and the welding torch 74 to descend as a whole until the welding nozzle of the welding torch 74 is aligned with the joint between the end cover 81 and the oil tank 8 (initial welding position). According to the outer diameter specification of the end cover 81, the electric telescopic rod 76 is activated by the controller 3. When the electric telescopic rod 76 extends and retracts, it drives the welding torch 74 to rotate around the rotation fulcrum of the structural ring 73, adjusting the tilt angle of the welding torch 74 to ensure that the welding nozzle and the weld maintain the best welding distance and angle.

[0043] Welding is initiated by starting the welding torch 74, and simultaneously the servo motor 6 is activated. The servo motor 6 drives the structural top plate 71, the bending rod 72, and the welding torch 74 to rotate around the central axis of the oil tank, causing the welding torch to make a circular motion along the weld seam, completing continuous welding. During the welding process, the optical triangulation position sensor 711 on the structural inclined plate 77 works synchronously: it projects a laser onto the weld seam through the vacuum transparent glass (tempered material, high temperature resistant and light-transmitting) inside the structural cylinder 710. The laser is received by the sensor after being reflected by the weld seam surface. The sensor transmits the reflected signal to the controller 3. The controller calculates the three-dimensional contour data of the weld seam using triangulation and displays the real-time weld seam image and dimensional parameters on a high-definition display screen, which is convenient for operators to monitor whether there are defects such as depressions, protrusions, or missed welds in the weld seam. If the display screen shows an abnormal weld seam, the operator can adjust the output power of the welding torch 74, the angle of the electric telescopic rod 76, or the speed of the servo motor 6 in real time through the controller to ensure the welding quality.

[0044] After welding is completed, the welding torch 74 is turned off, and the servo motor 6 stops rotating; the electric lifting rod 5 retracts, driving the welding assembly to rise and reset as a whole; the electric push rod 42 retracts, the clamping plate 43 disengages from the oil tank 8, and the operator removes the welded oil tank end cap assembly, completing one welding operation.

[0045] The foregoing has shown and described the basic principles, main features, and advantages of this utility model. It will be apparent to those skilled in the art that this utility model is not limited to the details of the exemplary embodiments described above, and that it can be implemented in other specific forms without departing from the spirit or basic characteristics of this utility model. Therefore, the embodiments should be considered exemplary and non-limiting in all respects. The scope of this utility model is defined by the appended claims rather than the foregoing description, and thus all variations falling within the meaning and scope of equivalents of the claims are intended to be included within this utility model. No reference numerals in the claims should be construed as limiting the scope of the claims.

[0046] Furthermore, it should be understood that although this specification describes embodiments, not every embodiment contains only one independent technical solution. This narrative style is merely for clarity. Those skilled in the art should consider the specification as a whole, and the technical solutions in each embodiment can also be appropriately combined to form other embodiments that can be understood by those skilled in the art.

Claims

1. An oil tank end cover welding apparatus characterized by comprising: It includes a welding processing table (1), and a clamping assembly (4) and a welding assembly (7) are sequentially arranged on the upper side of the welding processing table (1). The welding assembly (7) includes a structural top plate (71), a plurality of folding rods (72) are fixedly connected to the lower side of the structural top plate (71), a structural ring (73) is fixedly installed at the lower end of the folding rods (72), a welding torch (74) is rotatably installed on the lower side of the structural ring (73), a folding plate (75) is fixedly connected to the side of the structural ring (73), an electric telescopic rod (76) is hinged between the folding plate (75) and the welding torch (74), a structural inclined plate (77) is fixedly connected to the side of the folding plate (75), an installation plate (78) is screwed onto the inner side of the structural inclined plate (77), a structural cylinder (710) is fixedly installed on the installation plate (78), and an optical triangulation position sensor (711) is fixedly installed on the inner side of the structural cylinder (710).

2. The oil tank end cover welding apparatus according to claim 1, characterized by The clamping assembly (4) includes four fixed seats (41), which are fixedly installed on the upper side of the welding processing table (1). An electric push rod (42) is fixedly installed on the inner side of the fixed seat (41).

3. An oil tank end cap welding apparatus according to claim 2, wherein A clamping plate (43) is fixedly installed on the output end of the electric push rod (42), and a rubber pad is fixedly installed on the inner side of the clamping plate (43).

4. The oil tank end cap welding apparatus of claim 1, wherein, An oil tank (8) is placed on the upper side of the welding processing table (1), and the side of the oil tank (8) abuts against the rubber pad.

5. An oil tank end cap welding apparatus as defined in claim 4, wherein, An end cap (81) is spot-welded to the upper side of the oil tank (8).

6. The fuel tank end cap welding device according to claim 1, characterized in that, A fixed frame (2) is fixedly installed on the upper side of the welding processing table (1), and a controller (3) is fixedly installed on the side wall of the fixed frame (2). A high-definition display screen is provided on the controller (3).

7. An oil tank end cap welding apparatus as defined in claim 6 wherein, An electric lifting rod (5) is fixedly installed on the upper side of the fixed frame (2). The output end of the electric lifting rod (5) passes through to the lower side of the fixed frame (2), and a servo motor (6) is fixedly installed on the lower side of the output end of the electric lifting rod (5). The lower side of the output end of the servo motor (6) is screwed to the top plate (71) of the structure.

8. The fuel tank end cap welding apparatus of claim 1, wherein, A heat insulation cover (79) is fixedly sleeved on the outside of the structural cylinder (710).

9. The fuel tank end cap welding apparatus of claim 1, wherein, An installation groove (712) is provided on the inner wall of the structural cylinder (710), and a vacuum transparent glass is fixedly installed inside the installation groove (712).

10. The oil tank end cap welding apparatus of claim 9, wherein, The vacuum transparent glass is made of tempered glass.

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