Automatic welding machine for metal net chain

Abstract

The invention discloses a metal net chain automatic welding machine which comprises an operation table, a connecting frame fixedly installed on the upper surface of the operation table, a welding mechanism fixedly installed at one end of the connecting frame, a frame groove formed in the upper surface of the operation table in an embedded mode, a conveying end of the welding mechanism rotationally installed in the frame groove of the operation table, and a connecting arm fixedly installed at one end of the operation table. And a winding mechanism is rotationally installed between the two sets of connecting arms, the driven rotating end of the winding mechanism is in transmission connection with the conveying end of the welding mechanism, a connecting cylinder and a storage cylinder are fixedly installed on the lower surface and the two sides of the operation table correspondingly, and a flattening mechanism is slidably installed in the connecting cylinder and the storage cylinder. Through the design of the winding mechanism, the welding mechanism and the flattening mechanism, in the welding process of the metal net chain, the metal net chain can be continuously conveyed through the first conveying belt, and the metal net chain can be pressed to be flat in the process before being welded; therefore, welding errors caused by unevenness of the metal net chain are effectively avoided.

Description

Technical Field

[0001] The invention relates to the technical field of metal mesh chain welding, in particular to an automatic metal mesh chain welding machine. Background Art

[0002] Wire mesh chain is a mesh structure made of metal materials, typically joined by wires, steel bars, etc., usually welded or braided. Its durability, corrosion resistance, and versatility make it widely used in various industries, agriculture, construction, and transportation.

[0003] For example, the patent with the national authorized patent announcement number CN207771079U discloses a metal mesh multi-axis linkage automatic welding machine, which is characterized in that it includes a frame and an X-axis guide rail provided at the top thereof, an X-axis slide is installed on the X-axis guide rail, a Y-axis guide rail is installed on the X-axis slide, a Y-axis slide is installed on the Y-axis guide rail, a Z-axis slide is installed on the Y-axis slide, and a Z-axis slide is installed on the Z-axis slide, and each slide moves along the corresponding guide rail under the drive of the corresponding axial power mechanism; the lower end of the Z-axis guide rail is also equipped with a rotating shaft, and the bottom of the rotating shaft is equipped with a support frame. After the metal mesh to be welded is installed on the support frame, it is extended into the interior of the welding machine under the drive of the X, Y, Z and rotating axes for welding. The beneficial effect of the present invention is that the multi-axis linkage structure can be used to automatically feed the product into the welding mechanism for welding, thereby improving production quality and work efficiency while reducing production costs.

[0004] However, in the above-mentioned metal mesh multi-axis linkage automatic welding machine, when welding the metal mesh chain, after welding the front end of the metal mesh chain, the worker needs to put the unwelded tail end back into the welding range, and the metal mesh chain cannot be automatically transported to the welding equipment for continuous welding. This increases the complexity and time consumption of the operation. Each welding part requires manual adjustment, which slows down the entire welding process. Especially when welding a large number of metal mesh chains, the efficiency is significantly affected.

[0005] At the same time, during the process of welding a long metal mesh chain, the metal mesh chain cannot be automatically reeled after welding, which will cause the metal mesh chain to unfold in the welding area after welding, occupying a large amount of ground space, affecting the development of other production operations, and the subsequent processing of the metal mesh chain requires manual intervention, further reducing production efficiency and increasing the complexity of operation. Summary of the Invention

[0006] The object of the present invention is to provide an automatic welding machine for metal mesh chains to solve the problem raised in the above-mentioned background technology that during the welding of metal mesh chains, after welding the front end of the metal mesh chain, the staff needs to place the unwelded tail end back into the welding range, and the metal mesh chain cannot be automatically transported for continuous welding by the welding equipment. In addition, in the process of welding longer metal mesh chains, the metal mesh chain cannot be automatically reeled after welding, which will cause the metal mesh chain after welding to unfold in the welding area and occupy a large amount of ground space.

[0007] To achieve the above object, the present invention provides the following technical solutions:

[0008] A metal mesh chain automatic welding machine comprises: an operating table, a connecting frame fixedly mounted on the upper surface of the operating table, a welding mechanism fixedly mounted on one end of the connecting frame, a frame groove embedded in the upper surface of the operating table, a conveying end of the welding mechanism rotatably mounted in the frame groove of the operating table, wherein:

[0009] A connecting arm is fixedly installed at one end of the operating table, and a winding mechanism is rotatably installed between two groups of connecting arms. The driven rotating end of the winding mechanism is transmission-connected to the conveying end of the welding mechanism, so that the welding mechanism can convey the welded metal mesh chain while the winding mechanism can rotate at the same angle to rewind the metal mesh chain.

[0010] A connecting tube and a storage tube are fixedly installed on the lower surface and both sides of the operating table respectively. A flattening mechanism is slidably installed in the connecting tube and the storage tube. The flattening mechanism is suspended above the conveying end of the welding mechanism. The flattening mechanism is flush with the conveying end of the welding mechanism. The flattening mechanism is located at the other end of the connecting frame. The flattening mechanism can move vertically downward and fit into the upper surface of the conveying end of the welding mechanism, and can press the metal mesh chain between the flattening mechanism and the conveying end of the welding mechanism, so that the metal mesh chain can remain flat during welding.

[0011] The above-mentioned metal mesh chain automatic welding machine, wherein: the welding mechanism includes a first linear module, the first linear module is fixedly installed at one end of the connecting frame, the second linear module is fixedly installed at one end of the moving block of the first linear module, and the welding gun is fixedly installed at one end of the moving block of the second linear module, and the welding gun can move in a cross-shaped trajectory through the cooperation of the first linear module and the second linear module.

[0012] The above-mentioned metal mesh chain automatic welding machine, wherein: connecting plates are fixedly installed on both sides of the embedded frame groove of the operating table, first rollers are rotatably installed between the two groups of the connecting plates, and the outer surfaces of the two groups of the first rollers are covered with first conveyor belts, and a motor is fixedly installed at one end of the connecting plate, and the output shaft of the motor passes through the connecting plate and is fixedly connected to the first roller, and the first conveyor belt can convey the metal mesh chain.

[0013] The above-mentioned metal mesh chain automatic welding machine, wherein: the first conveyor belt, the first linear module and the second linear module together constitute a three-axis linkage system, and the three-axis linkage system operates by providing welding point positioning with a camera, and the camera is fixedly installed at both ends of the connecting frame;

[0014] The method for positioning the welding point with a camera specifically includes the following steps:

[0015] S1, system initialization: start the camera to prepare for image acquisition;

[0016] S2. Real-time image acquisition: The camera captures images of the welding area through its internal image sensor and transmits the acquired images to the image processing system inside the camera for analysis in real time;

[0017] S3. Image processing and welding spot identification: The image processing system analyzes the received image, identifies the welding spot positions on the metal mesh chain using edge detection, feature recognition, and pattern matching technologies, and determines the image coordinates of the welding spots;

[0018] S4, coordinate conversion: using the calibration information of the camera and the geometric model of the image processing system, converting the image coordinates of the welding point into actual space coordinates;

[0019] S5. Path planning and control command generation: Based on the actual spatial coordinates of the welding point and the preset welding path, the image processing system plans the movement path of the welding gun;

[0020] Then, a control instruction is generated to adjust the movement of the first conveyor belt, the first linear module and the second linear module to ensure that the welding gun can accurately reach each welding point;

[0021] S6, three-axis linkage and welding execution: The control command is sent to the three-axis linkage system to accurately control the movement of the first linear module, the second linear module and the welding gun, so that the welding gun moves to the welding point position according to the planned path to perform welding;

[0022] S7. Real-time feedback and adjustment: The camera continuously monitors the welding area and provides real-time image feedback of the welding process. The image processing system analyzes the position and path of the welding gun based on the feedback information. If any deviation is found, the image processing system immediately adjusts the control instructions to correct the position and path of the welding gun.

[0023] The above-mentioned metal mesh chain automatic welding machine, wherein: a frame plate is fixedly installed between the two groups of connecting plates, and the frame plate is located inside the first conveyor belt to provide support force for the first conveyor belt, thereby avoiding deviation of welding points due to indentation during the welding process of the metal mesh chain.

[0024] The above-mentioned metal mesh chain automatic welding machine, wherein: the flattening mechanism includes two groups of electric push rods, the two groups of electric push rods are respectively fixedly mounted in the connecting cylinders on the lower surfaces of both sides of the operating table, one end of the piston rod of the electric push rod is fixedly mounted with a first rotating cylinder, one end of the outer surface of the two groups of the first rotating cylinders is fixedly mounted with a docking plate, the other end of the docking plate is fixedly mounted with a second rotating cylinder, a second roller is rotatably mounted between each group of the first and second rotating cylinders, the outer surfaces of the two groups of the second rollers are covered with a second conveyor belt, the second conveyor belt can be brought into contact and fit with the first conveyor belt by pulling down the piston rod of the electric push rod, and during the pulling down process, it will drive the limiting column to slide into the storage cylinder together, the limiting column is fixedly mounted on one end of the second rotating cylinder, so that the second conveyor belt can remain horizontal during the process of being pulled down.

[0025] The above-mentioned metal mesh chain automatic welding machine, wherein: a support column is rotatably installed between the two groups of the docking plates, and the support column rotates in the second conveyor belt and contacts the inner surface of the second conveyor belt, so that when the second conveyor belt is driven to move downward and fit onto the surface of the first conveyor belt, the mutual pressing cooperation between the support column and the frame plate can enable the first conveyor belt and the second conveyor belt to apply rolling and clamping effects to the metal mesh chain.

[0026] The above-mentioned metal mesh chain automatic welding machine, wherein: the winding mechanism includes a winding drum, which is rotatably installed between two sets of connecting arms, one end of the winding drum passes through the connecting arm, and the end is fixedly installed with a first transmission disk, the outer surface of the first transmission disk is sleeved with a transmission belt, and the other end of the transmission belt is sleeved on the outer surface of the second transmission disk, the second transmission disk is fixedly installed on one end of the rotating rod of the first roller, and the rotating rod of the first roller also passes through one end of the operating table, the outer surfaces of the first transmission disk and the second transmission disk are sleeved with a protective shell, and the protective shell is fixedly installed on one end of the operating table.

[0027] The above-mentioned automatic welding machine for metal mesh chains, wherein: two groups of L-shaped plates are fixedly installed on the outer surface of the winding drum, sliding plates are damped and slidably installed inside the L-shaped plates, a connecting rod is fixedly installed between the two groups of sliding plates, and a spline is fixedly installed on the lower end of the outer surface of the connecting rod, and the spline can be inserted into the docking groove, and the docking groove is opened on the outer surface of the winding drum, and the spline can pass through the hole of the welded metal mesh chain, thereby clamping the metal mesh chain between the connecting rod and the winding drum.

[0028] The above-mentioned metal mesh chain automatic welding machine, wherein: a lifting ring is fixedly installed on the upper surface of the sliding plate.

[0029] Compared with the prior art, the present invention has the following beneficial effects:

[0030] 1. Through the design of the operating table, winding mechanism, welding mechanism and flattening mechanism, when welding the metal mesh chain, the metal mesh chain can be placed on the upper surface of the conveying end of the welding mechanism, and then it will be conveyed inward by the conveying end of the welding mechanism. At the same time, the flattening mechanism can be started to press down vertically on the upper surface of the metal mesh chain, so that the metal mesh chain can be pressed between the flattening mechanism and the conveying end of the welding mechanism. As the conveying end of the welding mechanism continues to convey, the conveying end can drive the metal mesh chain to press the flattening mechanism together for transmission and rotation, and through the pressing effect of the flattening mechanism, the metal mesh chain can be pressed to a flat shape before welding, which effectively avoids welding errors caused by the unevenness of the metal mesh chain, such as welding point offset or uneven welding, and can significantly improve the welding quality, ensuring that each welding point can be accurately positioned. The metal mesh chain that has been pressed to a flat shape will be transported by the conveying end to the bottom of the welding end of the welding mechanism, and the welding point will be identified and processed. Automatic welding operation is performed until the identified welding point is welded, and the conveying end of the welding mechanism will be started again to convey the back half of the metal mesh chain to the front end, thereby realizing the purpose of automatically conveying and continuously welding the metal mesh chain, and the whole process does not require manual intervention, which greatly improves production efficiency. After welding a part, the remaining part of the metal mesh chain is automatically conveyed to the welding area, ensuring the continuity of production, reducing the time and error of manual placement, and improving the welding speed and consistency. If the welded metal mesh chain is too long and can contact the outer surface of the winding mechanism, the metal mesh chain can be clamped on the outer surface of the winding mechanism, and this winding mechanism is driven together with the conveying end of the welding mechanism, so that each time a part of the metal mesh chain is welded and conveyed away, the winding mechanism can reel in the welded metal mesh chain of the same length, so that workers do not need to manually organize and roll up the metal mesh chain after welding, reducing the workload of subsequent processing.

[0031] 2. Through the design of the first linear module, the second linear module, the welding gun, the camera, the first roller and the first conveyor belt, when welding the metal mesh chain, the metal mesh chain can be placed on the upper surface of the first conveyor belt, and then the first roller can be driven by the starting motor to drive the first conveyor belt to convey the metal mesh chain to the welding gun, until the metal mesh chain is conveyed to the lower end of the welding gun and is recognized by the camera, and the camera will analyze the captured image through the image processing system to identify the position of the welding point on the metal mesh chain. Once the welding point is identified, the system will convert the image coordinates of the welding point into actual spatial coordinates, and according to the identified welding point position and target welding path, the system will generate corresponding control instructions. These instructions are used to adjust the movement of the first conveyor belt, the first linear module and the second linear module, so that the welding gun can be driven by the first linear module and the second linear module to touch the metal mesh chain to be welded. The welding operation is performed at the corresponding position until a row of welding points are all welded. The motor can be started again to drive the first conveyor belt to display the points of the second row of the metal mesh chain that need to be welded under the field of view of the camera, and the camera can again control the moving path of the first linear module and the second linear module through graphic recognition to ensure that the welding gun can accurately reach the target position to complete the welding operation. The continuous conveying purpose of the first conveyor belt can make the metal mesh chain have the function of being automatically fed, avoiding the traditional situation where manual adjustment of the position of the metal mesh chain is required, which greatly improves production efficiency and makes the metal mesh chain welding process more coherent and efficient. The camera can automatically identify a row of welding points and complete the welding, and then start the first conveyor belt again to move the next row of metal mesh chain parts that need to be welded to the welding position, which can ensure the continuity of the welding operation, reduce the time of pauses and interruptions, and thus improve the overall work efficiency.

[0032] 3. Through the design of the electric push rod, the limit column, the docking plate, the support column, the second roller and the second conveyor belt, when the first conveyor belt transports the metal mesh chain to the bottom of the second conveyor belt, the electric push rod can be started to pull the first rotating drum on the upper surface of the piston rod to move vertically downward, and the first rotating drum can drive the second rotating drum at one end of the docking plate to move downward together, so that the first rotating drum and the second rotating drum can drive the second conveyor belt on the outer surface of the second roller installed between them to move vertically downward, and multiple groups of support columns are installed in the second conveyor belt, so that the second conveyor belt can drive the internal support columns to apply roller pressure to the second conveyor belt, so that the roller The second conveyor belt with pressure presses against the upper surface of the metal mesh chain on the upper surface of the first conveyor belt, and then as the first conveyor belt continues to convey, the contact between the metal mesh chain and the second conveyor belt can drive the second conveyor belt to rotate in a relative direction, thereby achieving the rolling and flattening of the metal mesh chain while applying a clamping force to it, which can provide stability during the welding process and keep it flat before welding. This avoids the problem of uneven welding caused by the uneven metal mesh chain, and is conducive to the consistency and quality of the welding points. The flattened metal mesh chain can reduce welding defects such as uneven or misaligned welds.

[0033] 4. Through the design of the winding drum, L-shaped plate, sliding plate, connecting rod and spline, when the welded metal mesh chain is too long and can contact the outer surface of the winding drum, the lifting ring on the upper surface of the sliding plate can be pulled to drive the spline on the lower surface of the connecting rod to be pulled out from the docking groove, and then the metal mesh chain can be passed through the lower end of the spline and placed on the upper end of the outer surface of the winding drum. Then, the sliding plate can be pressed again to drive the spline on the lower surface of the connecting rod to pass through the mesh of the metal mesh chain and insert it into the docking groove, thereby locking the metal mesh chain to the outer surface of the winding drum. Then, as the first roller rotates clockwise, the first conveyor belt is driven clockwise to rotate the unwelded metal. When the mesh chain is conveyed forward, the first roller will drive the second transmission disc at one end to drive the transmission belt to rotate, and the transmission belt will drive the first transmission disc at one end of the take-up drum to rotate, so that each time a part of the metal mesh chain is welded and conveyed away, the take-up drum can reel up the welded metal mesh chain of the same length, so that workers do not need to manually arrange and roll up the metal mesh chain after welding, reducing the workload of subsequent processing. By automatically rolling up the welded metal mesh chain neatly, the entire production process can become more coherent and smooth, without pauses or delays caused by human operation, so that each time a section of the metal mesh chain is welded, it will be automatically conveyed and rolled up, saving time and effort. BRIEF DESCRIPTION OF THE DRAWINGS

[0034] Figure 1 This is a schematic diagram of the overall structure of the metal mesh chain automatic welding machine of the present invention;

[0035] Figure 2It is a structural schematic diagram of the storage cylinder of the metal mesh chain automatic welding machine of the present invention;

[0036] Figure 3 This is a schematic structural diagram of the winding mechanism of the present invention clamping the metal mesh chain;

[0037] Figure 4 This is a schematic structural diagram of the first linear module and the second linear module of the present invention;

[0038] Figure 5 A schematic diagram of the position of a camera of the present invention;

[0039] Figure 6 It is a structural schematic diagram of the welding mechanism of the present invention;

[0040] Figure 7 It is a structural schematic diagram of the flattening mechanism of the present invention;

[0041] Figure 8 It is a structural schematic diagram of the winding mechanism of the present invention.

[0042] Figure: 1. Operating table; 101. Connecting arm; 102. Connecting frame; 103. Storage cylinder; 104. Connecting cylinder; 105. Protective shell; 2. Winding mechanism; 201. Winding cylinder; 202. First transmission disc; 203. Transmission belt; 204. L-shaped plate; 205. Sliding plate; 206. Connecting rod; 207. Docking groove; 208. Gear shaping; 3. Welding mechanism; 301. First linear module; 302. Second linear module Module; 303, welding gun; 304, camera; 305, first roller; 306, first conveyor belt; 307, motor; 308, connecting plate; 309, frame plate; 310, second transmission plate; 4, flattening mechanism; 401, electric push rod; 402, first rotating drum; 403, limiting column; 404, second rotating drum; 405, docking plate; 406, support column; 407, second roller; 408, second conveyor belt. DETAILED DESCRIPTION

[0043] The following will clearly and completely describe the technical solutions in the embodiments of the present invention in conjunction with the accompanying drawings. Obviously, the described embodiments are only part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without making creative efforts are within the scope of protection of the present invention.

[0044] See also Figures 1-8 , the present invention provides the following technical solutions:

[0045] like Figure 1-Figure 3As shown, the metal mesh chain automatic welding machine includes: an operating table 1, a connecting frame 102 is fixedly installed on the upper surface of the operating table 1, a welding mechanism 3 is fixedly installed on one end of the connecting frame 102, and a frame groove is opened on the upper surface of the operating table 1 in an embedded manner. The conveying end of the welding mechanism 3 is rotatably installed in the frame groove of the operating table 1;

[0046] Among them, a connecting arm 101 is fixedly installed at one end of the operating table 1, and a winding mechanism 2 is rotatably installed between the two sets of connecting arms 101. The driven rotating end of the winding mechanism 2 is transmission-connected to the conveying end of the welding mechanism 3, so that the welding mechanism 3 can convey the welded metal mesh chain while the winding mechanism 2 can rotate at the same angle to rewind the metal mesh chain;

[0047] Among them, a connecting tube 104 and a storage tube 103 are fixedly installed on the lower surface and both sides of the operating table 1, and a flattening mechanism 4 is slidably installed in the connecting tube 104 and the storage tube 103. The flattening mechanism 4 is suspended above the conveying end of the welding mechanism 3. The flattening mechanism 4 is flush with the conveying end of the welding mechanism 3. The flattening mechanism 4 is located at the other end of the connecting frame 102. The flattening mechanism 4 can move vertically downward to fit on the upper surface of the conveying end of the welding mechanism 3, and can press the metal mesh chain between the flattening mechanism 4 and the conveying end of the welding mechanism 3, so that the metal mesh chain can remain flat during welding.

[0048] Through the design of the operating table 1, the winding mechanism 2, the welding mechanism 3 and the flattening mechanism 4, when welding the metal mesh chain, the metal mesh chain can be placed on the upper surface of the conveying end of the welding mechanism 3, and then it will be conveyed inward by the conveying end of the welding mechanism 3. At the same time, the flattening mechanism 4 can be started to press down vertically on the upper surface of the metal mesh chain, so that the metal mesh chain can be pressed between the flattening mechanism 4 and the conveying end of the welding mechanism 3. As the conveying end of the welding mechanism 3 continues to convey, the conveying end can drive the metal mesh chain to press the flattening mechanism 4 together for transmission and rotation, and through the pressing effect of the flattening mechanism 4, the metal mesh chain can be pressed to a flat shape before welding, which effectively avoids welding errors caused by the unevenness of the metal mesh chain, such as welding point offset or uneven welding, and can significantly improve the welding quality, ensuring that each welding point can be accurately positioned, and the metal mesh chain pressed to a flat shape will be identified as a weld after being conveyed by the conveying end to the bottom of the welding end of the welding mechanism 3. The automatic welding operation is performed at the point until the identified welding point is welded, and the conveying end of the welding mechanism 3 will be started again to convey the back half of the metal mesh chain to the front end, thereby realizing the purpose of automatically conveying and continuously welding the metal mesh chain, and the whole process does not require manual intervention, which greatly improves production efficiency. After welding a part, the remaining part of the metal mesh chain is automatically conveyed to the welding area, ensuring the continuity of production, reducing the time and error of manual placement, and improving the welding speed and consistency. If the welded metal mesh chain is too long and can contact the outer surface of the winding mechanism 2, the metal mesh chain can be clamped on the outer surface of the winding mechanism 2, and this winding mechanism 2 is driven together with the conveying end of the welding mechanism 3, so that each time a part of the metal mesh chain is welded and conveyed away, the winding mechanism 2 can reel in the welded metal mesh chain of the same length, so that workers do not need to manually organize and roll up the metal mesh chain after welding, reducing the workload of subsequent processing.

[0049] like Figure 4-Figure 6 As shown, the welding mechanism 3 includes a first linear module 301, which is fixedly mounted on one end of the connecting frame 102, a second linear module 302 is fixedly mounted on one end of the movable block of the first linear module 301, and a welding gun 303 is fixedly mounted on one end of the movable block of the second linear module 302. The welding gun 303 can move in a cross-shaped trajectory through the cooperation of the first linear module 301 and the second linear module 302.

[0050] Connecting plates 308 are fixedly installed on both sides of the embedded frame groove of the operating table 1, and the first rollers 305 are rotatably installed between the two sets of connecting plates 308. The outer surfaces of the two sets of first rollers 305 are covered with first conveyor belts 306. A motor 307 is fixedly installed at one end of the connecting plate 308, and the output shaft of the motor 307 passes through the connecting plate 308 and is fixedly connected to the first rollers 305. The first conveyor belt 306 can transport the metal mesh chain.

[0051] The three-axis linkage system formed by the first conveyor belt 306, the first linear module 301 and the second linear module 302 is operated by the camera 304 to provide welding point positioning. The camera 304 is fixedly installed at both ends of the connecting frame 102;

[0052] The method for positioning the welding point by the camera 304 specifically includes the following steps:

[0053] S1, system initialization: start the camera 304 to prepare for image acquisition;

[0054] S2. Real-time image acquisition: The camera 304 captures images of the welding area through its internal image sensor and transmits the captured images to the image processing system inside the camera 304 for analysis in real time;

[0055] S3. Image processing and solder joint identification: The image processing system analyzes the received image and uses edge detection, feature recognition, and pattern matching technology to identify the locations of solder joints on the metal mesh chain and determine the image coordinates of the solder joints.

[0056] S4, coordinate conversion: using the calibration information of the camera 304 and the geometric model of the image processing system, the image coordinates of the welding point are converted into actual space coordinates;

[0057] S5. Path planning and control instruction generation: Based on the actual spatial coordinates of the welding point and the preset welding path, the image processing system plans the movement path of the welding gun 303;

[0058] Then, a control instruction is generated to adjust the movement of the first conveyor belt 306, the first linear module 301 and the second linear module 302 to ensure that the welding gun 303 can accurately reach each welding point;

[0059] S6. Three-axis linkage and welding execution: The control command is sent to the three-axis linkage system to accurately control the movement of the first linear module 301, the second linear module 302, and the welding gun 303, so that the welding gun 303 moves to the welding point position according to the planned path to perform welding;

[0060] S7. Real-time feedback and adjustment: The camera 304 continuously monitors the welding area and provides real-time image feedback of the welding process. The image processing system analyzes the position and path of the welding gun 303 based on the feedback information to determine whether it is accurate. If any deviation is found, the image processing system immediately adjusts the control instructions to correct the position and path of the welding gun 303. Real-time adjustment of the welding process can ensure welding quality.

[0061] S8. Error correction and continuous optimization: In the case of recognition errors or path deviations, the image processing system not only performs immediate corrections but also records error information for subsequent image processing algorithm optimization and motion parameter adjustment of the first conveyor belt 306, the first linear module 301, and the second linear module 302.

[0062] Continuously optimize image processing algorithms and path planning strategies to improve the accuracy and efficiency of weld point positioning and welding.

[0063] Reduce error rates and improve welding quality through continuous improvement of system performance

[0064] Among them, the geometric model construction steps are:

[0065] 1. Camera calibration: The camera is calibrated using a specific calibration plate (such as a checkerboard calibration plate) to obtain the camera's intrinsic parameters (focal length, optical center, etc.) and extrinsic parameters (the camera's position and posture in the world coordinate system).

[0066] 2. Establish a world coordinate system: Define a fixed world coordinate system in the welding area. Usually, a fixed point of the welded metal mesh chain is selected as the origin, and the directions of the X, Y, and Z axes are determined.

[0067] 3. Coordinate transformation matrix: Using the intrinsic and extrinsic parameters obtained from camera calibration, a transformation matrix is ​​constructed from the image coordinate system to the world coordinate system. This matrix contains the scaling factor, rotation, and translation information from pixel coordinates to physical coordinates (e.g., millimeters).

[0068] 4. Distortion correction: According to the distortion coefficient obtained by calibration, the image is corrected to eliminate the influence of lens distortion on coordinate transformation.

[0069] 5. Model verification: Verify the accuracy and reliability of the geometric model by comparing actual measurements and image coordinates.

[0070] The image processing and solder joint recognition algorithms are as follows:

[0071] Image preprocessing: Perform preprocessing operations such as filtering, denoising, and contrast enhancement on the collected images to improve image quality and facilitate subsequent processing.

[0072] Edge detection: Use edge detection algorithms such as Canny and Sobel to extract edge information of the welding area.

[0073] Feature extraction: Extract the feature vector of the solder joint based on its shape, color, brightness, etc. This can include shape descriptors (such as circularity, aspect ratio), color histograms, texture features, etc.

[0074] Feature matching and recognition: The extracted features are matched with a preset solder joint template, or machine learning algorithms (such as support vector machines (SVMs) and neural networks) are used to identify solder joints. The recognition results include the location of the solder joint (image coordinates) and possible confidence levels.

[0075] The path planning and control algorithms are as follows:

[0076] Path planning: Based on the actual spatial coordinates of the welding point and the preset welding path (such as straight line, curve, grid, etc.), the Dijkstra, A* and other algorithms are used to plan the optimal movement path of the welding gun 303.

[0077] Motion Control: Based on the path planning results, control instructions are generated to adjust the motion parameters (such as speed, acceleration, and position) of the first conveyor belt 306, the first linear module 301, and the second linear module 302. These control instructions are required to precisely control the motion of each axis to achieve accurate positioning of the welding gun 303.

[0078] Real-time Adjustment and Optimization: During the welding process, the position and path of the welding gun 303 are adjusted in real time using algorithms such as PID control and fuzzy control based on real-time image feedback provided by camera 304. Error information is also recorded and analyzed, and image processing algorithms and path planning strategies are continuously optimized to improve the accuracy and efficiency of weld point positioning and welding.

[0079] In summary, through precise geometric models and efficient algorithms, the accuracy and stability of the welding process can be ensured and the welding quality can be improved.

[0080] A frame plate 309 is fixedly installed between the two sets of connecting plates 308. The frame plate 309 is located inside the first conveyor belt 306 to provide support for the first conveyor belt 306 to avoid deviation of welding points due to indentation during welding of the metal mesh chain.

[0081] Through the design of the first linear module 301, the second linear module 302, the welding gun 303, the camera 304, the first roller 305 and the first conveyor belt 306, when welding the metal mesh chain, the metal mesh chain can be placed on the upper surface of the first conveyor belt 306, and then the motor 307 can be started to drive the first roller 305 to drive the first conveyor belt 306 to convey the metal mesh chain to the welding gun 303, until the metal mesh chain is conveyed to the lower end of the welding gun 303 and is recognized by the camera 304. The camera 304 will analyze the captured image through the image processing system to identify the position of the welding point on the metal mesh chain. Once the welding point is identified, the system will convert the image coordinates of the welding point into actual spatial coordinates, and according to the identified welding point position and the target welding path, the system will generate corresponding control instructions. These instructions are used to adjust the movement of the first conveyor belt 306, the first linear module 301 and the second linear module 302, so that the welding gun 303 can be brought by the first linear module 301 and the second linear module 302. The dynamic top touch performs welding operations on the parts of the metal mesh chain that need to be welded. After a row of welding points are completed, the motor 307 can be started again to drive the first conveyor belt 306 to display the points of the second row of the metal mesh chain that need to be welded in the field of view of the camera 304. The camera 304 can again control the moving path of the first linear module 301 and the second linear module 302 through graphic recognition to ensure that the welding gun 303 can accurately reach the target position to complete the welding operation. The continuous conveying purpose of the first conveyor belt 306 can enable the metal mesh chain to be automatically fed, avoiding the traditional situation where manual adjustment of the position of the metal mesh chain is required. This greatly improves production efficiency and makes the metal mesh chain welding process more coherent and efficient. The camera 304 can automatically identify a row of welding points and complete the welding, and then start the first conveyor belt 306 again to move the next row of metal mesh chain parts that need to be welded to the welding position. This can ensure the continuity of the welding operation, reduce the time of pauses and interruptions, and thus improve overall work efficiency.

[0082] like Figure 7As shown, the flattening mechanism 4 includes two groups of electric push rods 401, which are respectively fixedly mounted in the connecting cylinders 104 on the lower surfaces of both sides of the operating table 1, and one end of the piston rod of the electric push rod 401 is fixedly mounted with a first rotating cylinder 402, and one end of the outer surface of the two groups of first rotating cylinders 402 is fixedly mounted with a docking plate 405, and the other end of the docking plate 405 is fixedly mounted with a second rotating cylinder 404. A second roller 407 is rotatably mounted between each group of opposite first rotating cylinders 402 and second rotating cylinders 404, and the outer surfaces of the two groups of second rollers 407 are covered with a second conveyor belt 408. The second conveyor belt 408 can be brought into contact and fit with the first conveyor belt 306 by pulling down the piston rod of the electric push rod 401, and during the pulling down process, it will drive the limiting column 403 to slide into the storage cylinder 103. The limiting column 403 is fixedly mounted on one end of the second rotating cylinder 404, so that it can keep the second conveyor belt 408 in a horizontal state during the process of being pulled down.

[0083] A support column 406 is rotatably installed between the two sets of docking plates 405. The support column 406 rotates in the second conveyor belt 408 and contacts the inner surface of the second conveyor belt 408. When the second conveyor belt 408 is driven to move downward and fit on the surface of the first conveyor belt 306, the mutual pressing cooperation between the support column 406 and the frame plate 309 can apply a rolling and clamping effect to the metal mesh chain.

[0084] Through the design of the electric push rod 401, the limit column 403, the docking plate 405, the support column 406, the second roller 407 and the second conveyor belt 408, when the first conveyor belt 306 transports the metal mesh chain to the bottom of the second conveyor belt 408, the electric push rod 401 can be started to pull the first rotating drum 402 on the upper surface of the piston rod to move vertically downward, and the first rotating drum 402 can drive the second rotating drum 404 at one end of the docking plate 405 to move downward together, so that the first rotating drum 402 and the second rotating drum 404 can drive the second conveyor belt 408 on the outer surface of the second roller 407 rotatably installed between them to move vertically downward, and multiple groups of support columns 406 are rotatably installed in the second conveyor belt 408, so that the second conveyor belt 408 can drive the internal support columns 406 applies roller pressure to the second conveyor belt 408, which can make the second conveyor belt 408 with roller pressure press against the upper surface of the metal mesh chain on the upper surface of the first conveyor belt 306. Then, as the first conveyor belt 306 continues to convey, the contact between the metal mesh chain and the second conveyor belt 408 can drive the second conveyor belt 408 to rotate in relative directions, thereby achieving the rolling and flattening of the metal mesh chain while also applying a clamping force to it, which can provide stability during the welding process and keep it flat before welding. This avoids the problem of uneven welding caused by the uneven metal mesh chain, contributes to the consistency and quality of the welding points, and the flattened metal mesh chain can reduce welding defects such as uneven or misaligned welds.

[0085] like Figure 8 As shown, the winding mechanism 2 includes a winding drum 201, which is rotatably installed between the two sets of connecting arms 101. One end of the winding drum 201 passes through the connecting arm 101, and a first transmission disk 202 is fixedly installed on the end. The outer surface of the first transmission disk 202 is covered with a transmission belt 203, and the other end of the transmission belt 203 is covered with an outer surface of the second transmission disk 310. The second transmission disk 310 is fixedly installed on one end of the rotating rod of the first roller 305, and the rotating rod of the first roller 305 also passes through one end of the operating table 1. The outer surfaces of the first transmission disk 202 and the second transmission disk 310 are covered with a protective shell 105, and the protective shell 105 is fixedly installed on one end of the operating table 1.

[0086] Two groups of L-shaped plates 204 are fixedly installed on the outer surface of the winding drum 201, and sliding plates 205 are damped and slidably installed inside the L-shaped plates 204. A connecting rod 206 is fixedly installed between the two groups of sliding plates 205. A tooth 208 is fixedly installed on the lower end of the outer surface of the connecting rod 206. The tooth 208 can be inserted into the docking groove 207. The docking groove 207 is opened on the outer surface of the winding drum 201. The tooth 208 can pass through the welded metal mesh chain hole, thereby clamping the metal mesh chain between the connecting rod 206 and the winding drum 201.

[0087] A lifting ring is fixedly mounted on the upper surface of the sliding plate 205 .

[0088] By the design of the winding drum 201, L-shaped plate 204, sliding plate 205, connecting rod 206 and spline 208, when the welded metal mesh chain is too long and can contact the outer surface of the winding drum 201, the spline 208 on the lower surface of the connecting rod 206 can be pulled out from the docking groove 207 by pulling the lifting ring on the upper surface of the sliding plate 205. Then, the metal mesh chain can be passed through the lower end of the spline 208 and placed on the upper end of the outer surface of the winding drum 201. Then, by pressing the sliding plate 205 again, the spline 208 on the lower surface of the connecting rod 206 can be driven through the mesh of the metal mesh chain and inserted into the docking groove 207, thereby locking the metal mesh chain on the outer surface of the winding drum 201. Then, as the first roller 305 rotates clockwise, it drives the first conveyor belt 30 6 is driven clockwise to convey the unwelded metal mesh chain forward, the first roller 305 will drive the second transmission disc 310 at one end to drive the transmission belt 203 to rotate, and the transmission belt 203 will drive the first transmission disc 202 at one end of the take-up drum 201 to rotate, so that each time a part of the metal mesh chain is welded and conveyed away, the take-up drum 201 can reel up the welded metal mesh chain of the same length, so that workers do not need to manually arrange and roll up the metal mesh chain after welding, reducing the workload of subsequent processing. By automatically rolling up the welded metal mesh chain neatly, the entire production process can become more coherent and smooth, without pauses or delays caused by human operation, so that each time a section of the metal mesh chain is welded, it will be automatically conveyed and rolled up, saving time and effort.

[0089] According to the above technical solution, the working steps of this solution are summarized and sorted out: when welding the metal mesh chain, the metal mesh chain can be placed on the upper surface of the first conveyor belt 306, and then the motor 307 can be started to drive the first roller 305 to drive the first conveyor belt 306 to convey the metal mesh chain to the bottom of the second conveyor belt 408. The electric push rod 401 can be started to pull the first rotating drum 402 on the upper surface of the piston rod to move vertically downward, and the first rotating drum 402 can drive the second rotating drum 404 at one end of the docking plate 405 to move downward together, so that the first rotating drum 402 and the second rotating drum 404 can drive the second conveyor belt 408 on the outer surface of the second roller 407 rotatably installed between them to move vertically downward, and the second conveyor belt 408 There are multiple sets of support columns 406 installed in the inner rotation, which can enable the second conveyor belt 408 to drive the internal support columns 406 to apply roller pressure to the second conveyor belt 408, and can enable the second conveyor belt 408 with roller pressure to press the upper surface of the metal mesh chain on the upper surface of the first conveyor belt 306. Then, as the first conveyor belt 306 continues to convey, the contact between the metal mesh chain and the second conveyor belt 408 can drive the second conveyor belt 408 to rotate in relative directions, thereby achieving the rolling and flattening of the metal mesh chain while also applying a clamping force to it, until the metal mesh chain is conveyed to the lower end of the welding gun 303 and is recognized by the camera 304, and the camera 304 will process the captured image through the image processing system. 304 )。 Analyze to identify the position of the welding point on the metal mesh chain. Once the welding point is identified, the system will convert the image coordinates of the welding point into actual space coordinates. According to the identified welding point position and the target welding path, the system will generate corresponding control instructions. These instructions are used to adjust the movement of the first conveyor belt 306, the first linear module 301 and the second linear module 302. The welding gun 303 can be driven by the first linear module 301 and the second linear module 302 to touch the part of the metal mesh chain that needs to be welded to perform welding operations. After a row of welding points are completed, the motor 307 can be started again to drive the first conveyor belt 306 to display the second row of the metal mesh chain that needs to be welded in the field of view of the camera 304. The camera 304 is again used to control the moving path of the first linear module 301 and the second linear module 302 through graphic recognition to ensure that the welding gun 303 can accurately reach the target position to complete the welding operation. The camera 304 can automatically identify a row of welding points and after completing welding, the first conveyor belt 306 is started again to move the next row of metal mesh chain parts that need to be welded to the welding position. When the welded metal mesh chain is too long and can contact the outer surface of the winding drum 201, the pull ring on the upper surface of the sliding plate 205 can be pulled to drive the tooth 208 on the lower surface of the connecting rod 206 to be pulled out of the docking groove 207, and then the metal mesh chain can be passed through the lower end of the tooth 208 and placed on the upper end of the outer surface of the winding drum 201.Then, by pressing the sliding plate 205 again, the slotted teeth 208 on the lower surface of the connecting rod 206 can be driven through the mesh of the metal mesh chain and inserted into the docking groove 207, thereby locking the metal mesh chain to the outer surface of the winding drum 201. Then, as the clockwise rotating first roller 305 drives the clockwise transmission of the first conveyor belt 306 to transport the unwelded metal mesh chain forward, the first roller 305 will drive the second transmission disc 310 at one end to rotate the transmission belt 203, and the transmission belt 203 will drive the first transmission disc 202 at one end of the winding drum 201 to rotate, so that each time a part of the metal mesh chain is welded and transported away, the winding drum 201 can reel in the same length of welded metal mesh chain.

[0090] In summary: During the welding process of the metal mesh chain by the automatic metal mesh chain welding machine, the metal mesh chain can be continuously conveyed by the first conveyor belt 306, and the metal mesh chain can be pressed to a flat state before being welded, which effectively avoids welding errors caused by the unevenness of the metal mesh chain, and when the welded metal mesh chain is too long, the winding drum 201 can also wind up the welded metal mesh chain of the same length, so that workers do not need to manually organize and roll up the metal mesh chain after welding, reducing the workload of subsequent processing.

[0091] Parts not described in the present invention are the same as those in the prior art or can be implemented using the prior art. Although the 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 variations may be made to these embodiments without departing from the principles and spirit of the present invention. The scope of the present invention is defined by the appended claims and their equivalents.

Claims

1. Metal mesh chain automatic welding machine, characterized in that, include: An operating table (1), wherein a connecting frame (102) is fixedly mounted on the upper surface of the operating table (1), a welding mechanism (3) is fixedly mounted on one end of the connecting frame (102), a frame groove is provided on the upper surface of the operating table (1) in an embedded manner, and a conveying end of the welding mechanism (3) is rotatably mounted in the frame groove of the operating table (1), wherein: A connecting arm (101) is fixedly mounted on one end of the operating table (1), a winding mechanism (2) is rotatably mounted between two groups of the connecting arms (101), and the driven rotating end of the winding mechanism (2) is transmission-connected to the conveying end of the welding mechanism (3), so that the welding mechanism (3) can convey the welded metal mesh chain while enabling the winding mechanism (2) to rotate at the same angle to wind up the metal mesh chain; A connecting tube (104) and a storage tube (103) are fixedly mounted on the lower surface and both sides of the operating table (1), respectively; a flattening mechanism (4) is slidably mounted in the connecting tube (104) and the storage tube (103); the flattening mechanism (4) is suspended above the conveying end of the welding mechanism (3); the flattening mechanism (4) is flush with the conveying end of the welding mechanism (3); the flattening mechanism (4) is located at the other end of the connecting frame (102); the flattening mechanism (4) can be vertically moved downward to fit on the upper surface of the conveying end of the welding mechanism (3), and can press the metal mesh chain between the flattening mechanism (4) and the conveying end of the welding mechanism (3), so that the metal mesh chain can remain flat during welding.

2. The metal mesh chain automatic welding machine according to claim 1, characterized in that: The welding mechanism (3) comprises a first linear module (301), the first linear module (301) being fixedly mounted on one end of a connecting frame (102), a second linear module (302) being fixedly mounted on one end of a moving block of the first linear module (301), a welding gun (303) being fixedly mounted on one end of a moving block of the second linear module (302), and the welding gun (303) being able to move in a cross-shaped trajectory through the cooperation between the first linear module (301) and the second linear module (302).

3. The metal mesh chain automatic welding machine according to claim 1 or 2, characterized in that: Connecting plates (308) are fixedly installed on both sides of the inner frame groove of the operating table (1); a first roller (305) is rotatably installed between two groups of the connecting plates (308); a first conveyor belt (306) is sleeved on the outer surface of the two groups of the first rollers (305); a motor (307) is fixedly installed at one end of the connecting plate (308); an output shaft of the motor (307) passes through the connecting plate (308) and is fixedly connected to the first roller (305); and the first conveyor belt (306) is capable of conveying the metal mesh chain.

4. The metal mesh chain automatic welding machine according to claim 3 is characterized in that: The first conveyor belt (306), the first linear module (301) and the second linear module (302) together constitute a three-axis linkage system, and the three-axis linkage system operates by providing welding point positioning with a camera (304), and the camera (304) is fixedly mounted at both ends of the connecting frame (102); The method for positioning the welding point using the camera (304) specifically comprises the following steps: S1, system initialization: starting the camera (304) to prepare for image acquisition; S2, real-time image acquisition: the camera (304) captures an image of the welding area through an image sensor inside the camera (304), and transmits the acquired image to an image processing system inside the camera (304) in real time for analysis; S3, image processing and welding spot identification: the image processing system analyzes the received image, identifies the welding spot position on the metal mesh chain by using edge detection, feature recognition and pattern matching technology, and determines the image coordinates of the welding spot; S4, coordinate conversion: using the calibration information of the camera (304) and the geometric model of the image processing system, converting the image coordinates of the welding point into actual space coordinates; S5, path planning and control instruction generation: according to the actual spatial coordinates of the welding point and the preset welding path, the image processing system plans the moving path of the welding gun (303); Then, a control instruction is generated to adjust the movement of the first conveyor belt (306), the first linear module (301) and the second linear module (302) to ensure that the welding gun (303) can accurately reach each welding point; S6, three-axis linkage and welding execution: the control command is sent to the three-axis linkage system to accurately control the movement of the first linear module (301), the second linear module (302) and the welding gun (303), so that the welding gun (303) moves to the welding point position according to the planned path to perform welding; S7. Real-time feedback and adjustment: The camera (304) continuously monitors the welding area and provides real-time image feedback of the welding process. The image processing system analyzes whether the position and path of the welding gun (303) are accurate based on the feedback information. If a deviation is found, the image processing system immediately adjusts the control instructions to correct the position and path of the welding gun (303).

5. The metal mesh chain automatic welding machine according to claim 3 is characterized in that: A frame plate (309) is fixedly installed between the two groups of connecting plates (308); the frame plate (309) is located inside the first conveyor belt (306) to provide support for the first conveyor belt (306) and to avoid deviation of welding points due to indentation during welding of the metal mesh chain.

6. The metal mesh chain automatic welding machine according to claim 1, characterized in that: The flattening mechanism (4) comprises two groups of electric push rods (401), the two groups of electric push rods (401) are respectively fixedly mounted in the connecting cylinders (104) on the lower surfaces of both sides of the operating table (1), one end of the piston rod of the electric push rod (401) is fixedly mounted with a first rotating cylinder (402), one end of the outer surface of the two groups of the first rotating cylinders (402) is fixedly mounted with a docking plate (405), and the other end of the docking plate (405) is fixedly mounted with a second rotating cylinder (404), and each group of the first rotating cylinder (402) and the second rotating cylinder (404) opposite to each other are fixedly mounted with a docking plate (405). A second roller (407) is rotatably installed between the two groups of the second rollers (407), and a second conveyor belt (408) is sleeved on the outer surface of the two groups of the second rollers (407). The second conveyor belt (408) can be in contact with the first conveyor belt (306) by pulling down the piston rod of the electric push rod (401), and during the pulling down process, it will also drive the limit column (403) to slide into the storage cylinder (103). The limit column (403) is fixedly installed at one end of the second rotating cylinder (404), so that the second conveyor belt (408) can remain horizontal during the process of being pulled down.

7. The metal mesh chain automatic welding machine according to claim 6, characterized in that: A support column (406) is rotatably installed between the two groups of docking plates (405). The support column (406) rotates inside the second conveyor belt (408) and contacts the inner surface of the second conveyor belt (408), so that when the second conveyor belt (408) is driven to move downward and fit onto the surface of the first conveyor belt (306), the support column (406) and the frame plate (309) can cooperate with each other in pressing, so that the first conveyor belt (306) and the second conveyor belt (408) can apply rolling and clamping effects to the metal mesh chain.

8. The metal mesh chain automatic welding machine according to claim 1, characterized in that: The winding mechanism (2) comprises a winding drum (201), the winding drum (201) being rotatably mounted between two groups of connecting arms (101), one end of the winding drum (201) passing through the connecting arm (101), and a first transmission disc (202) being fixedly mounted on the end thereof, a transmission belt (203) being sleeved on the outer surface of the first transmission disc (202), the other end of the transmission belt (203) being sleeved on the outer surface of a second transmission disc (310), the second transmission disc (310) being fixedly mounted on one end of a rotating rod of a first roller (305), the rotating rod of the first roller (305) also passing through one end of an operating table (1), the outer surfaces of the first transmission disc (202) and the second transmission disc (310) being sleeved with a protective shell (105), the protective shell (105) being fixedly mounted on one end of the operating table (1).

9. The metal mesh chain automatic welding machine according to claim 8, characterized in that: Two groups of L-shaped plates (204) are fixedly mounted on the outer surface of the winding drum (201), a sliding plate (205) is damped and slidably mounted inside the L-shaped plate (204), a connecting rod (206) is fixedly mounted between the two groups of sliding plates (205), a toothing (208) is fixedly mounted on the lower end of the outer surface of the connecting rod (206), the toothing (208) can be inserted into a docking groove (207), the docking groove (207) is provided on the outer surface of the winding drum (201), the toothing (208) can pass through a welded metal mesh chain hole, and the metal mesh chain can be clamped between the connecting rod (206) and the winding drum (201).

10. The metal mesh chain automatic welding machine according to claim 9, characterized in that: A lifting ring is fixedly mounted on the upper surface of the sliding plate (205).

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