A visual correction structure for multi-welding gun signboard welding

By using a visual sensor and clamping device in a visual correction structure, welding position deviations can be identified and adjusted in real time, solving the problem of workpiece displacement caused by electromagnetic oscillation during welding and achieving welding stability and consistency.

CN224295028UActive Publication Date: 2026-05-29CHANGZHOU MALKEN MACHINERY MANUFACTURING CO LTD

Patent Information

Authority / Receiving Office
CN · China
Patent Type
Utility models(China)
Current Assignee / Owner
CHANGZHOU MALKEN MACHINERY MANUFACTURING CO LTD
Filing Date
2025-06-10
Publication Date
2026-05-29

AI Technical Summary

Technical Problem

During the welding process, the high-frequency electromagnetic oscillation of the electric arc causes the workpiece to vibrate, resulting in welding position displacement and uneven weld seam, which reduces welding accuracy and quality.

Method used

The system employs a visual correction structure, which uses a visual sensor to identify welding position deviations in real time. It also uses a drive motor and a double-threaded assembly to drive the clamping side plate to constrain the workpiece in all directions. Combined with anti-slip pads to enhance friction and ensure workpiece stability, the system uses a control box for dynamic correction and adjustment.

Benefits of technology

It achieves stable clamping of workpieces under high-frequency electromagnetic oscillation conditions, avoids slippage or displacement, ensures smooth welding and uniform and flat weld seams, and improves the stability and consistency of welding.

✦ Generated by Eureka AI based on patent content.

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Abstract

The utility model discloses a kind of visual rectification structures of multi-welding gun nameplate welding, it is related to welding rectification technical field, including workbench, the workbench top surface one side is fixedly connected with multiple mechanical rocker arms, and mechanical rocker arm end is equipped with welding device, the mechanical rocker arm end one side is fixedly connected with visual sensor, and mechanical rocker arm bottom one side is fixedly connected with control box, the workbench top surface both sides are all fixedly connected with multiple workpiece tables, the utility model can utilize double thread assembly to promote the multiple opposite components of its outer wall both ends synchronous along sliding groove outer wall to center movement, and drive its top clamping side plate tightly workpiece outer wall, and workpiece is firmly fixed in workpiece table top surface center using non-slip gasket, compared with the mode that magnetic plate simply relies on magnetic force adsorption, this kind of physical clamping can form all-around constraint to workpiece, even if there is the vibration caused by high-frequency electromagnetic oscillation, workpiece also cannot produce slip or displacement.
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Description

Technical Field

[0001] This utility model relates to the field of welding correction technology, specifically a visual correction structure for welding multi-welding gun nameplates. Background Technology

[0002] Welding is a process that joins two or more materials, usually metals, together by heating, pressurizing, or a combination of both. During welding, the joint is locally heated to a molten state, then cooled and solidified to form a strong bond. This technology has a wide range of applications, from building large-scale projects like bridges and ships to manufacturing everyday items such as automobiles and electronic products. Welding is indispensable, allowing different components to be tightly connected to form a complete structure, providing crucial support for the development of modern industry.

[0003] According to a search, Chinese patent document, publication number CN 219310447 U, relates to a vision-correcting welding robotic arm, belonging to the field of welding machinery technology. It includes a robotic arm body and a welding torch. A connecting rod is provided on the robotic arm body, connecting the robotic arm body and the welding torch via the connecting rod. A sleeve passes through the connecting rod, and a vision sensor is located at the bottom of the sleeve. A light-shielding plate is also provided on the sleeve, positioned between the vision sensor and the welding torch. This application has the effect of improving the welding quality of workpieces.

[0004] The aforementioned device uses a magnetic plate to place the workpiece. In practical applications, the magnetic plate can indeed play a certain role in limiting the strong magnetic metal and ensure the stability of the workpiece to a certain extent. However, during the welding process, the ignition and maintenance of the electric arc will generate high-frequency electromagnetic oscillations. These oscillations will then cause slight vibrations in the workpiece. As the workpiece begins to vibrate, it will gradually begin to move slightly with the vibration, eventually leading to a shift in the welding position and uneven weld seam, which significantly reduces the accuracy and quality of the welding. In view of this, we provide a visual correction structure for multi-welding gun nameplate welding. Utility Model Content

[0005] The purpose of this invention is to overcome the shortcomings of the existing technology and provide a visual correction structure for welding multi-welding gun nameplates.

[0006] To achieve the above objectives, this utility model provides the following technical solution: a visual correction structure for welding multi-welding gun nameplates, comprising a worktable, a plurality of mechanical rocker arms fixedly connected to one side of the top surface of the worktable, and a welding device installed at the end of each mechanical rocker arm; a visual sensor fixedly connected to one side of the end of each mechanical rocker arm; a control box fixedly connected to one side of the bottom of each mechanical rocker arm; a plurality of workpiece tables fixedly connected to both sides of the top surface of the worktable; a plurality of drive motors fixedly connected to one side of the interior of the worktable; a double-threaded assembly fixedly connected to the output end of each drive motor; a plurality of sliding grooves formed on both sides of the inner wall of the worktable; a plurality of limiting grooves formed on the top surface of each workpiece table; a plurality of opposing components slidably connected to both sides of the bottom surface of each workpiece table; a plurality of guide sliders fixedly connected to both sides of the outer wall of each opposing component; a plurality of clamping platforms fixedly connected to the top surface of each opposing component; and a clamping side plate fixedly connected to one side of the top surface of each clamping platform.

[0007] As described above, one side of the outer wall of the guide slider is in close contact with the inner wall of the sliding groove, and the outer wall of the guide slider is slidably connected to the inner wall of the sliding groove.

[0008] As described above, the double-threaded assembly is located at the center of the bottom of the workpiece table. The outer walls of both ends of the double-threaded assembly pass through the inner sides of the worktable, and the outer walls of both ends of the double-threaded assembly are rotatably connected to the inner ends of the worktable via rotating shafts.

[0009] As described above, the two ends of the outer wall of the double-threaded assembly pass through the internal centers of multiple opposing assemblies, and the two ends of the outer wall of the double-threaded assembly are rotatably connected to the internal centers of multiple opposing assemblies by means of threads.

[0010] As described above, the top of the outer wall of the clamping platform extends upward into the interior of the limiting groove, and the two sides of the outer wall of the clamping platform are slidably connected to the two sides of the inner wall of the limiting groove.

[0011] As described above, the clamping side plate and the clamping table together form an L-shaped structure, and multiple corner bracing plates are fixedly connected between one side of the outer wall of the clamping side plate and both sides of the top surface of the clamping table.

[0012] As mentioned above, anti-slip pads are attached to one side of the clamping side plate and the outer wall of the clamping table, and multiple clamping side plates, clamping tables and anti-slip pads are arranged in a pattern on both sides of the top surface of the workpiece table.

[0013] Compared with existing technologies, this visual correction structure for multi-welding gun nameplate welding has the following beneficial effects:

[0014] I. This utility model, by activating the drive motor, can use the double-threaded assembly to push multiple opposing components at both ends of its outer wall to move synchronously along the outer wall of the sliding groove towards the center, and drive the clamping side plate at the top to press tightly against the outer wall of the workpiece. The anti-slip pads are used to firmly fix the workpiece to the center of the top surface of the workpiece table. Compared with the magnetic plate relying solely on magnetic adsorption, this physical clamping can form an all-round constraint on the workpiece. Even if there is vibration caused by high-frequency electromagnetic oscillation, the workpiece will not slip or shift. At the same time, the anti-slip pads can not only enhance the friction but also prevent the surface of the metal workpiece from being scratched during the clamping process, thereby ensuring the smooth progress of the welding work and the reliability of the welding effect, ensuring that the weld is uniform and flat, and solving the problems caused by the traditional device using magnetic plates to place the workpiece.

[0015] Second, the image data collected by the vision sensor of this utility model is analyzed in real time by the algorithm built into the control box, which can accurately identify the actual positional deviation between the welding device and the workpiece. When the welding path is detected to deviate from the preset trajectory, the control box will immediately send an adjustment command to the mechanical rocker arm to drive the welding device to perform three-dimensional coordinate fine adjustment. Through the closed-loop control of real-time visual feedback and dynamic correction, the stability and consistency of the welding operation can be further improved.

[0016] Other advantages, objectives and features of this invention will be set forth in part in the description which follows, and in part will be apparent to those skilled in the art from the following examination or study, or may be taught from the practice of this invention. Attached Figure Description

[0017] Figure 1 This is a three-dimensional structural diagram of the present invention;

[0018] Figure 2 This is a side-section three-dimensional structural diagram of the workpiece stage of this utility model;

[0019] Figure 3 This is a three-dimensional structural diagram of an isolated side section of the workpiece stage of this utility model;

[0020] Figure 4 This is a partial three-dimensional structural diagram of the clamping side plate of this utility model.

[0021] In the diagram: 1. Workbench; 101. Workpiece table; 102. Sliding groove; 103. Limiting groove; 2. Mechanical rocker arm; 201. Welding device; 202. Vision sensor; 203. Control box; 3. Drive motor; 301. Double thread assembly; 302. Opposing assembly; 303. Guide slider; 304. Clamping table; 305. Clamping side plate; 306. Angle support plate; 307. Anti-slip pad. Detailed Implementation

[0022] 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.

[0023] like Figure 1-4 As shown, this utility model provides a technical solution: a visual correction structure for welding multi-welding gun nameplates, including a workbench 1. Multiple mechanical rocker arms 2 are fixedly connected to one side of the top surface of the workbench 1, and welding devices 201 are installed at the ends of the mechanical rocker arms 2. A vision sensor 202 is fixedly connected to one side of the end of the mechanical rocker arm 2, and a control box 203 is fixedly connected to one side of the bottom of the mechanical rocker arm 2. Multiple workpiece tables 101 are fixedly connected to both sides of the top surface of the workbench 1, and multiple drive units are fixedly connected to one side of the interior of the workbench 1. The output end of the motor 3 is fixedly connected to a double threaded assembly 301. Multiple sliding grooves 102 are provided on both sides of the inner wall of the worktable 1. Multiple limiting grooves 103 are provided on the top surface of the workpiece table 101. Multiple opposing assemblies 302 are slidably connected to both sides of the bottom surface of the workpiece table 101. Multiple guide sliders 303 are fixedly connected to both sides of the outer wall of the opposing assembly 302. Multiple clamping tables 304 are fixedly connected to the top surface of the opposing assembly 302. A clamping side plate 305 is fixedly connected to one side of the top surface of the clamping table 304.

[0024] The double-threaded assembly 301 pushes multiple opposing assemblies 302 at both ends of its outer wall to move synchronously along the outer wall of the sliding groove 102 towards the center, and drives the clamping side plate 305 at the top to press against the outer wall of the workpiece. The anti-slip pad 307 is used to firmly fix the workpiece to the center of the top surface of the workpiece table 101. Compared with the magnetic plate relying solely on magnetic adsorption, this physical clamping can form an all-round constraint on the workpiece. Even if there is vibration caused by high-frequency electromagnetic oscillation, the workpiece will not slip or move.

[0025] like Figures 2-3 As shown, one side of the outer wall of the guide slider 303 is tightly fitted with the inner wall of the sliding groove 102, and the outer side of the guide slider 303 is slidably connected to the inner wall of the sliding groove 102.

[0026] By ensuring that the outer wall of the guide slider 303 is tightly fitted to the inner wall of the sliding groove 102, the deviation of the guide slider 303 during the sliding process can be effectively limited, ensuring that it moves smoothly along the trajectory of the sliding groove 102.

[0027] like Figure 2As shown, the double thread assembly 301 is located at the bottom center of the worktable 101. The outer walls of the two ends of the double thread assembly 301 pass through the inner sides of the worktable 1, and the outer walls of the two ends of the double thread assembly 301 are rotatably connected to the inner ends of the worktable 1 through rotating shafts.

[0028] After the outer walls of both ends of the double-threaded assembly 301 pass through the inner sides of the worktable 1, they are allowed to be rotatably connected to one side of the worktable 1 via a rotating shaft.

[0029] like Figure 2 and Figure 4 As shown, the two ends of the outer wall of the double-threaded assembly 301 pass through the inner centers of multiple opposing assemblies 302 respectively, and the two ends of the outer wall of the double-threaded assembly 301 are rotatably connected to the inner centers of multiple opposing assemblies 302 respectively by means of threads.

[0030] Through the symmetrical design of the positive and negative threads, the double thread assembly 301 can synchronously drive multiple opposing assemblies 302 at both ends to move smoothly inward or outward along the sliding groove 102 when rotating, so that the clamping action always maintains symmetry.

[0031] like Figure 2 As shown, the top of the outer wall of the clamping platform 304 extends upward into the interior of the limiting groove 103, and the two sides of the outer wall of the clamping platform 304 are slidably connected to the two sides of the inner wall of the limiting groove 103.

[0032] The limiting groove 103 provides a rigid guiding effect for the displacement of the clamping table 304, preventing it from deviating from the preset movement trajectory, and allows the opposing component 302 to drive the clamping side plate 305 to move on the top surface of the workpiece table 101 from the bottom of the workpiece table 101.

[0033] like Figure 4 As shown, the clamping side plate 305 and the clamping table 304 together form an L-shaped structure, and multiple corner bracing plates 306 are fixedly connected between one side of the outer wall of the clamping side plate 305 and both sides of the top surface of the clamping table 304.

[0034] The L-shaped structure between the clamping side plate 305 and the clamping table 304, combined with the reinforcement effect of the corner brace 306, significantly improves the bending resistance of the clamping side plate 305 when constraining the outer wall of the workpiece.

[0035] like Figure 4 As shown, anti-slip pads 307 are attached to one side of the outer wall of the clamping side plate 305 and the clamping table 304, and multiple clamping side plates 305, clamping tables 304 and anti-slip pads 307 are arranged in a pattern on both sides of the top surface of the workpiece table 101.

[0036] The anti-slip pad 307 is made of high-friction-coefficient silicone material, which increases the friction of the contact surface and also prevents the workpiece from being scratched by the clamping side plate 305 when it is constrained.

[0037] Working principle: By tightly fitting the outer wall of the guide slider 303 with the inner wall of the sliding groove 102, the offset of the guide slider 303 during the sliding process can be effectively limited, ensuring its smooth movement along the trajectory of the sliding groove 102. After the outer walls of both ends of the double thread assembly 301 pass through the inner sides of the worktable 1, it is allowed to be rotatably connected to one side of the worktable 1 via a rotating shaft. Through the symmetrical design of the positive and negative threads, when the double thread assembly 301 rotates, it can synchronously drive multiple opposing assemblies 302 at both ends to move smoothly inward or outward along the sliding groove 102, so that the clamping action always maintains symmetry. The limiting groove 103 is... The displacement of the clamping table 304 provides a rigid guiding effect, preventing it from deviating from the preset movement trajectory, and allowing the opposing component 302 to drive the clamping side plate 305 to move on the top surface of the workpiece table 101 from the bottom of the workpiece table 101. The L-shaped structure between the clamping side plate 305 and the clamping table 304, together with the reinforcement effect of the corner brace 306, significantly improves the bending resistance of the clamping side plate 305 when constraining the outer wall of the workpiece. The anti-slip pad 307 is made of high friction coefficient silicone material, which increases the friction of the contact surface and also prevents the workpiece from being scratched by the clamping side plate 305 when constrained.

[0038] Although embodiments of the present invention have been shown and described, it will be understood by those skilled in the art that various changes, modifications, substitutions and alterations can be made to these embodiments without departing from the principles and spirit of the present invention, the scope of which is defined by the appended claims and their equivalents.

Claims

1. A visual correction structure for multi-welding gun nameplate welding, comprising a workbench (1), characterized in that: Multiple mechanical rocker arms (2) are fixedly connected to one side of the top surface of the workbench (1), and a welding device (201) is installed at the end of the mechanical rocker arm (2). A vision sensor (202) is fixedly connected to one side of the end of the mechanical rocker arm (2), and a control box (203) is fixedly connected to one side of the bottom of the mechanical rocker arm (2). Multiple workpiece tables (101) are fixedly connected to both sides of the top surface of the workbench (1), and multiple drive motors (3) are fixedly connected to one side of the inside of the workbench (1). A double threaded assembly is fixedly connected to the output end of the drive motor (3). The worktable (1) has multiple sliding grooves (102) on both sides of its inner wall, multiple limiting grooves (103) on its top surface, multiple opposing components (302) on both sides of its bottom surface, multiple guide sliders (303) on both sides of the outer wall of the opposing components (302), multiple clamping tables (304) on their top surface, and a clamping side plate (305) on one side of the top surface of the clamping table (304).

2. The visual correction structure for multi-welding gun nameplate welding according to claim 1, characterized in that: The outer wall of the guide slider (303) is in close contact with the inner wall of the sliding groove (102), and the outer wall of the guide slider (303) is slidably connected to the inner wall of the sliding groove (102).

3. The visual correction structure for multi-welding gun nameplate welding according to claim 1, characterized in that: The double thread assembly (301) is located at the bottom center of the workpiece table (101). The outer walls of the two ends of the double thread assembly (301) pass through the inner sides of the worktable (1) respectively, and the outer walls of the two ends of the double thread assembly (301) are rotatably connected to the inner ends of the worktable (1) through the rotating shaft respectively.

4. The visual correction structure for multi-welding gun nameplate welding according to claim 3, characterized in that: The two ends of the outer wall of the double threaded assembly (301) pass through the inner center of multiple opposing assemblies (302), and the two ends of the outer wall of the double threaded assembly (301) are rotatably connected to the inner center of multiple opposing assemblies (302) by means of threads.

5. The visual correction structure for multi-welding gun nameplate welding according to claim 1, characterized in that: The top of the outer wall of the clamping table (304) extends upward into the interior of the limiting groove (103), and the two sides of the outer wall of the clamping table (304) are slidably connected to the two sides of the inner wall of the limiting groove (103).

6. The visual correction structure for multi-welding gun nameplate welding according to claim 1, characterized in that: The clamping side plate (305) and the clamping table (304) together form an L-shaped structure, and multiple corner bracing plates (306) are fixedly connected between one side of the outer wall of the clamping side plate (305) and both sides of the top surface of the clamping table (304).

7. The visual correction structure for multi-welding gun nameplate welding according to claim 6, characterized in that: Anti-slip pads (307) are attached to one side of the outer wall of the clamping side plate (305) and the clamping table (304), and multiple clamping side plates (305), clamping table (304) and anti-slip pads (307) are arranged in a pattern on both sides of the top surface of the workpiece table (101).