Large curved plate angle welding device

Abstract

The utility model relates to the technical field of welding equipment, in particular to a large curved plate angle welding device which comprises a workbench, two second sliding grooves are formed in the positions, close to the left side and the right side, of the top face of the workbench. The multiple arc-shaped supporting plates are arranged, supporting legs are fixedly connected to the bottom faces of the multiple arc-shaped supporting plates, and the arc-shaped supporting plates are used for supporting a curved plate; the moving mechanism comprises two bases which are symmetrically arranged on the top face of the workbench. According to the utility model, through the automatic adjusting function of the welding mechanism, the elastic telescopic rod automatically stretches out and draws back according to the cambered surface shape of the curved plate in the moving process, so that the roller is always attached to the surface of the curved plate, the distance between a welding gun and a welding seam is kept constant, and the continuity and the stability of the welding process are ensured. And through cooperative arrangement of an arc-shaped supporting plate and a limiting mechanism, the arc-shaped supporting plate supports the curved plate, the curved plate can be limited by a clamping plate by controlling a second electric telescopic rod to stretch or retract, and the practicability of the device is improved.

Description

Technical Field

[0001] This utility model relates to the field of welding equipment manufacturing technology, specifically a large curved panel fillet welding device. Background Technology

[0002] In modern industrial production, large curved panel structures are widely used in many fields such as shipbuilding, aerospace, large storage tanks, and bridge construction. During processing, welding connections between curved panels are often required. However, traditional fillet welding methods have some shortcomings when dealing with large curved panels.

[0003] Manual welding is one of the more common methods for fillet welding. However, for large curved panels, manual welding is extremely inefficient. When welding manually, the welder needs to operate the welding gun manually and weld point by point and section by section. For large curved panels, the welding path is long, and the welder needs to maintain a specific posture for a long time to perform the welding operation. The labor intensity is high, and the welding speed is difficult to increase. At the same time, the quality of manual welding is greatly affected by the welder's skill level, and it is difficult to guarantee the consistency of welding quality between different welders. Utility Model Content

[0004] The purpose of this invention is to provide a large curved panel fillet welding device to solve the problems mentioned in the background art.

[0005] To achieve the above objectives, this utility model provides the following technical solution:

[0006] A large curved panel fillet welding device, comprising:

[0007] The workbench has two sliding grooves on its top surface near the left and right sides.

[0008] A plurality of arc-shaped support plates are provided, and the bottom surface of each of the arc-shaped support plates is fixedly connected to a support leg. The arc-shaped support plates are used to support the curved panel.

[0009] The moving mechanism includes two bases symmetrically arranged on the top surface of the workbench. An electric telescopic rod is fixedly connected to the top surface of each of the two bases. A top frame is fixedly connected to the output end of each of the two electric telescopic rods. A lead screw is rotatably connected to the bottom of the top frame. A reduction motor is installed on the end side of the top frame.

[0010] A welding mechanism includes a movable seat that is screwed to the outer wall of a lead screw. A strip plate is provided below the movable seat. A rotating block is fixedly connected to the top surface of the strip plate. The rotating block is rotatably connected to the bottom of the movable seat. A servo motor is fixedly connected to the side wall of the movable seat. Two elastic telescopic rods are fixedly connected to the bottom surface of the strip plate. Rollers are installed at the bottom ends of the two elastic telescopic rods. A connecting rod is fixedly connected between the mounting brackets of the two rollers. A fixing ring is fixedly connected to the top surface of the rollers. A welding torch is installed inside the fixing ring.

[0011] The limiting mechanism is provided in four parts. Each limiting mechanism includes a clamping plate. The bottom surface of each of the four clamping plates is fixedly connected to a slider two. Each of the four slider two is slidably connected to a corresponding slide groove two. Each of the four clamping plates is fixedly connected to an electric telescopic rod two on the side wall near the location of the arc-shaped support plate. The other end of each electric telescopic rod two is fixedly connected to a connecting seat fixed to the top surface of the worktable.

[0012] Furthermore, the bottom surfaces of both bases are fixedly connected to sliders, and the outer side walls of both bases are screwed together with fastening knobs.

[0013] Furthermore, the top surface of the workbench has two symmetrically arranged sliding grooves, which are slidably connected to two sliders respectively.

[0014] Furthermore, the workbench has two opposite sidewalls with slotted grooves, and the positions of the two slotted grooves correspond to the two fastening knobs respectively.

[0015] Furthermore, the top surface of the clamping plate is screwed with a threaded rod II, the bottom end of the threaded rod II is rotatably connected to a connecting plate, the bottom surface of the connecting plate is fixedly connected to a rotating seat, and a pressure plate is rotatably connected below the rotating seat.

[0016] Furthermore, the elastic telescopic rod includes a square rod, the bottom end of which is fixedly connected to the mounting bracket of the roller, a square sleeve is slidably fitted onto the outer wall of the square rod, and a spring is connected between the top end of the square rod and the inner top surface of the square sleeve.

[0017] Furthermore, the fixing ring includes a mounting frame, and a threaded rod is rotatably connected inside the mounting frame. One end of the threaded rod is connected to a knob, and two arc-shaped clamps are symmetrically screwed onto the outer wall of the threaded rod.

[0018] Compared with the prior art, the beneficial effects of this utility model are:

[0019] 1. Through the automatic adjustment function of the welding mechanism, the welding torch can always maintain the optimal welding angle and position during the welding process, reducing manual operation. During the movement, the elastic telescopic rod automatically extends and retracts according to the arc shape of the curved panel, so that the roller always fits in contact with the surface of the curved panel, keeping the distance between the welding torch and the weld constant. This allows the welding mechanism to move smoothly along the arc of the curved panel, ensuring the continuity and stability of the welding process.

[0020] 2. The coordinated arrangement of the arc-shaped support plate and the limiting mechanism allows the arc-shaped support plate to support the curved panel. Controlling the extension or retraction of the electric telescopic rod allows the clamping plate to move horizontally, thereby limiting the curved panel and preventing it from shifting during welding, thus improving the practicality of the device. Attached Figure Description

[0021] Figure 1 This is a schematic diagram of the overall structure of a large curved panel fillet welding device according to this utility model;

[0022] Figure 2 This is a schematic diagram of the workbench and arc-shaped tray structure in this utility model;

[0023] Figure 3 This is a schematic diagram of the moving mechanism and welding mechanism in this utility model;

[0024] Figure 4 This is a schematic diagram of the welding mechanism structure in this utility model;

[0025] Figure 5 This is a schematic diagram of the fixing ring structure in this utility model;

[0026] Figure 6 This is a schematic diagram of the limiting mechanism in this utility model.

[0027] In the diagram: 100, worktable; 110, slide rail one; 120, strip groove; 130, slide rail two; 200, arc-shaped support plate; 210, support leg; 300, moving mechanism; 310, base; 311, slider one; 312, fastening knob; 320, electric telescopic rod one; 330, top frame; 340, lead screw; 350, geared motor; 400, welding mechanism; 410, moving seat; 420, strip plate; 421, rotating block; 430, servo motor; 440. Elastic telescopic rod; 441, square rod; 442, square sleeve; 443, spring; 450, roller; 460, connecting rod; 470, fixing ring; 471, mounting frame; 472, threaded rod one; 473, knob one; 474, arc-shaped clamp; 480, welding torch; 500, limiting mechanism; 510, clamping plate; 511, slider two; 520, connecting seat; 530, electric telescopic rod two; 540, threaded rod two; 550, connecting plate; 551, rotating seat; 560, pressure plate. Detailed Implementation

[0028] 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.

[0029] Example

[0030] Please see Figure 1-6In this embodiment of the present invention, a large curved panel fillet welding device includes a worktable 100, an arc-shaped support plate 200, a moving mechanism 300, a welding mechanism 400, and a limiting mechanism 500. The worktable 100 has two sliding grooves 130 on its top surface near both the left and right sides. Several arc-shaped support plates 200 are arranged at equal angles above the worktable 100. Support legs 210 are fixedly connected to the bottom surface of each arc-shaped support plate 200, and the bottom ends of the support legs 210 are fixedly connected to the top surface of the worktable 100. Flexible anti-slip pads are provided on the surfaces of the arc-shaped support plates 200 to support the curved panel. The moving mechanism... The 300 includes two symmetrically arranged bases 310 on the top surface of the workbench 100. Each base 310 is a right-angled plate. The inner sidewalls of the two bases 310 are respectively attached to two opposite sidewalls of the workbench 100. An electric telescopic rod 320 is fixedly connected to the top surface of each base 310. A top frame 330 is fixedly connected between the output ends of the two electric telescopic rods 320. A lead screw 340 is rotatably connected to the bottom of the top frame 330. A reduction motor 350 is mounted on the end side of the top frame 330. The motor shaft of the reduction motor 350 is drively connected to one end of the lead screw 340. The welding mechanism 400 includes a movable seat 410 screwed to the outer wall of the lead screw 340. The top side of the movable seat 410 is slidably connected to the sidewall of the top frame 330. A strip plate 420 is provided below the base. A rotating block 421 is fixedly connected to the top surface of the strip plate 420. The rotating block 421 is rotatably connected to the bottom of the movable base 410. A servo motor 430 is fixedly connected to the side wall of the movable base 410. The motor shaft of the servo motor 430 is connected to the rotating shaft inside the rotating block 421. Two elastic telescopic rods 440 are fixedly connected to the bottom surface of the strip plate 420. Rollers 450 are installed at the bottom ends of the two elastic telescopic rods 440. A connecting rod 460 is fixedly connected between the mounting brackets of the two rollers 450. A fixing ring 470 is fixedly connected to the top surface of the rollers 450. A welding torch 480 is installed inside the fixing ring 470. The elastic telescopic rod 440 includes a square rod 441. The bottom end of the square rod 441 is connected to the mounting bracket of the roller 450. The frame is fixedly connected, and a square sleeve 442 is slidably sleeved on the outer wall of the square rod 441. A spring 443 is connected between the top of the square rod 441 and the inner top surface of the square sleeve 442. Four limiting mechanisms 500 are provided, which correspond to the positions of four sliding grooves 130 respectively. The limiting mechanism 500 includes a clamping plate 510. The bottom surface of each of the four clamping plates 510 is fixedly connected to a slider 511. The four sliders 511 are slidably connected to the corresponding sliding grooves 130 respectively. The side walls of the four clamping plates 510 near the position of the arc-shaped support plate 200 are fixedly connected to an electric telescopic rod 530. The other end of the electric telescopic rod 530 is fixedly connected to a connecting seat 520 fixed to the top surface of the worktable 100. The bottom surface of the connecting seat 520 is fixedly connected to the top surface of the worktable 100.

[0031] Specifically, in use, two curved panels to be welded together are placed on the arc-shaped support plate 200. Supported by several arc-shaped support plates 200, the curved panels are kept stable. The four electric telescopic rods 530 are extended or retracted, moving the clamping plate 510 until its inner wall abuts the edge of the curved panel. The four clamping plates 510 position and clamp the two curved panels, positioning the weld seam directly below the moving mechanism 300. The electric telescopic rod 320 is then retracted, causing the top frame 330 to descend, allowing the rollers 450 to fit against the surface of the curved panel. Two rollers 450 support the weld seam on either side. The welding torch 4 is then adjusted... The welding torch 480 is positioned at a height of 80 degrees, bringing it close to the weld seam. The welding torch 480 is then fixed in the fixing ring 470. The servo motor 430 controls the deflection of the strip plate 420, maintaining a suitable tilt angle between the welding torch 480 and the weld seam. The reduction motor 350 is activated, causing the lead screw 340 to rotate and drive the moving seat 410 to move horizontally along the servo motor 430. During this movement, the welding torch 480 welds the weld seam. During the movement, the elastic telescopic rod 440 automatically extends and retracts according to the arc shape of the curved panel, ensuring that the roller 450 remains in contact with the surface of the curved panel, maintaining a constant distance between the welding torch 480 and the weld seam, and ensuring the continuity and stability of the welding process.

[0032] like Figure 6 As shown, in this embodiment, a threaded rod 540 is screwed onto the top surface of the clamping plate 510, a connecting plate 550 is rotatably connected to the bottom end of the threaded rod 540, a handle is fixedly connected to the top surface of the threaded rod 540, a rotating seat 551 is fixedly connected to the bottom surface of the connecting plate 550, a pressure plate 560 is rotatably connected below the rotating seat 551, and a flexible rubber pad is provided on the bottom surface of the pressure plate 560.

[0033] In this embodiment, after the four clamping plates 510 clamp and limit the curved panel, one hand assists the connecting plate 550 and the other hand rotates the handle to rotate the threaded rod 540, thereby driving the connecting plate 550 to move downward, so that the pressure plate 560 moves downward until it presses on the outer arc surface of the curved panel. The pressure plate 560 deflects around the connection point of the rotating seat 551 as the axis, and relatively conforms to the curvature of the curved panel to enhance the fixation of the curved panel.

[0034] like Figure 5 As shown, in this embodiment, the fixing ring 470 includes a mounting frame 471. A threaded rod 472 is rotatably connected inside the mounting frame 471. A knob 473 is connected to one end of the threaded rod 472. Two arc-shaped clips 474 are symmetrically screwed onto the outer wall of the threaded rod 472. The threads at both ends of the threaded rod 472 have opposite directions. The two arc-shaped clips 474 are screwed onto two different threaded grooves respectively.

[0035] In practice, by turning knob 473, threaded rod 472 can be rotated, thereby controlling the two arc-shaped clamps 474 to move away from or closer to each other, making it convenient to adjust the position of welding torch 480 so that welding torch 480 is close to the weld.

[0036] like Figure 2-3 As shown, in this embodiment, the bottom surfaces of the two bases 310 are fixedly connected with sliders 311, and the outer side walls of the two bases 310 are screwed with fastening knobs 312. The top surface of the workbench 100 has two symmetrically arranged sliding grooves 110, which are slidably connected to the two sliders 311 respectively. The two opposite side walls of the workbench 100 are provided with strip grooves 120, and the positions of the two strip grooves 120 correspond to the two fastening knobs 312 respectively.

[0037] In practice, the slider 311 can slide along the path of the slide groove 110, so that the position of the moving mechanism 300 can be moved horizontally, which facilitates the adjustment to align the welding torch 480 with the weld. After adjusting the position of the moving mechanism 300, tighten the fastening knob 312 so that it is embedded in the strip groove 120, and fix the position of the moving mechanism 300.

[0038] It will be apparent to those skilled in the art that this invention 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 essential characteristics of this invention. Therefore, the embodiments should be considered illustrative and non-limiting in all respects, and the scope of this invention is defined by the appended claims rather than the foregoing description. Thus, it is intended that all variations falling within the meaning and scope of equivalents of the claims be included within this invention. No reference numerals in the claims should be construed as limiting the scope of the claims.

[0039] 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. A large curved panel corner welding apparatus, characterized by, include: The workbench (100) has two sliding grooves (130) on the top surface near the left and right sides. A number of arc-shaped support plates (200) are provided, and the bottom surface of each arc-shaped support plate (200) is fixedly connected to a support leg (210). The arc-shaped support plates (200) are used to support the curved panel. The moving mechanism (300) includes two bases (310) symmetrically arranged on the top surface of the workbench (100). The top surfaces of the two bases (310) are fixedly connected to electric telescopic rods (320). The output ends of the two electric telescopic rods (320) are fixedly connected to a top frame (330). A lead screw (340) is rotatably connected to the bottom of the top frame (330). A geared motor (350) is installed on the end side of the top frame (330). The welding mechanism (400) includes a movable seat (410) that is screwed to the outer wall of the lead screw (340). A strip plate (420) is provided below the movable seat (410). A rotating block (421) is fixedly connected to the top surface of the strip plate (420). The rotating block (421) is rotatably connected to the bottom of the movable seat (410). A servo motor (430) is fixedly connected to the side wall of the movable seat (410). Two elastic telescopic rods (440) are fixedly connected to the bottom surface of the strip plate (420). Rollers (450) are installed at the bottom ends of the two elastic telescopic rods (440). A connecting rod (460) is fixedly connected between the mounting brackets of the two rollers (450). A fixing ring (470) is fixedly connected to the top surface of the rollers (450). A welding gun (480) is installed inside the fixing ring (470). The limiting mechanism (500) is provided in four parts. The limiting mechanism (500) includes a clamping plate (510). The bottom surface of each of the four clamping plates (510) is fixedly connected to a slider (511). The four sliders (511) are slidably connected to the corresponding slide grooves (130). The side walls of each of the four clamping plates (510) near the location of the arc-shaped support plate (200) are fixedly connected to an electric telescopic rod (530). The other end of the electric telescopic rod (530) is fixedly connected to a connecting seat (520) fixed to the top surface of the worktable (100).

2. The apparatus of claim 1 wherein, The bottom surfaces of both bases (310) are fixedly connected to sliders (311), and the outer side walls of both bases (310) are screwed together with fastening knobs (312).

3. The apparatus of claim 1 wherein: The top surface of the worktable (100) has two symmetrical sliding grooves (110), which are slidably connected to two sliders (311).

4. The apparatus according to claim 1 or 3, wherein The workbench (100) has two opposite side walls with slots (120), and the positions of the two slots (120) correspond to the two fastening knobs (312).

5. The apparatus of claim 1 wherein, The top surface of the clamping plate (510) is screwed with a threaded rod (540), the bottom end of the threaded rod (540) is rotatably connected to a connecting plate (550), the bottom surface of the connecting plate (550) is fixedly connected to a rotating seat (551), and a pressure plate (560) is rotatably connected below the rotating seat (551).

6. The apparatus of claim 1 wherein, The elastic telescopic rod (440) includes a square rod (441), the bottom end of which is fixedly connected to the mounting bracket of the roller (450), a square sleeve (442) is slidably sleeved on the outer wall of the square rod (441), and a spring (443) is connected between the top end of the square rod (441) and the inner top surface of the square sleeve (442).

7. The apparatus of claim 1 wherein, The fixing ring (470) includes a mounting frame (471), and a threaded rod (472) is rotatably connected inside the mounting frame (471). A knob (473) is connected to one end of the threaded rod (472), and two arc-shaped clips (474) are symmetrically screwed onto the outer wall of the threaded rod (472).

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