Automatic welding production equipment for structural pipe core material plate

Abstract

The utility model provides automatic welding production equipment for a structural pipe core material plate, and aims to efficiently and accurately complete assembly and welding of a metal plate and a metal pipe. The equipment core comprises a lifting conveying truss used for moving a metal plate to be welded to a welding station. The base plate is provided with an insertion tube top tile which can be matched with a metal tube, so that the insertion of the metal tube is guided to be accurate and the metal tube is supported; and the positioning and plate pressing mechanism can guarantee that the distance between the plates is accurate, and preparation is made for welding. According to the pipe inserting and laser welding mechanism, automatic inserting and welding of metal pipes can be sequentially achieved at the positions of through holes needing pipe inserting and welding through control of the translation mechanism, the whole process is synchronously conducted on the two sides of two metal plates, and the production efficiency and the welding quality are greatly improved. The equipment integrates multiple functions of material conveying, accurate positioning, pipe inserting and welding, and a high-automation and high-precision structural pipe core material plate production equipment system and method are formed.

Description

Technical Field

[0001] This utility model relates to the field of building panels, and mainly to processing and production equipment for the mass production of structural tube core panels and metal tube sandwich panels, specifically an automatic welding production equipment for structural tube core panels. Background Technology

[0002] In the construction industry, hollow core panels have solved the problem of significant material waste associated with solid core panels, and therefore, they are now widely used. In recent years, sandwich panels have also gradually gained popularity due to their unique advantages, especially structural tube sandwich panels, which are formed by inserting several metal tubes between two layers of metal plates and then welding them together. By embedding hollow structural tubes within the metal plates, the overall weight of the component can be significantly reduced without sacrificing structural strength. This not only facilitates transportation and installation but also reduces the building's self-weight. The addition of structural tubes enhances the overall rigidity and stability of the panels, especially under bending or torsional loads, effectively dispersing stress and preventing panel deformation. The position, size, and quantity of structural tubes can be adjusted as needed to adapt to different structural design requirements, providing customized solutions. Prefabricated sandwich panels can be directly assembled and connected on-site, reducing on-site processing workload, improving construction efficiency, and ensuring consistent construction quality. Lightweight design and excellent thermal insulation properties help reduce energy consumption and lower building operating costs, aligning with the concept of modern green building. Structural tube sandwich panels, through their unique design, not only effectively solve the problem of material waste but also greatly improve the performance of building structures, meeting the comprehensive requirements of modern buildings for efficiency, environmental protection, safety, and economy.

[0003] It is evident that, based on the advantages of sandwich panels, their market usage and demand are increasing daily. The traditional manufacturing process for sandwich panels requires placing metal tubes between two layers of metal plates and then welding the ends of the tubes to the plates. Therefore, the welding workload is substantial. Traditional brazing is used, which has several drawbacks, such as long welding times due to high temperatures, low efficiency, and poor yield. Laser welding avoids these problems; however, it also faces efficiency issues. While manual welding and equipment assistance are typically used, the overall panel production efficiency remains insufficient. Currently, there is a lack of efficient and reasonable automated welding equipment and methods for structural core panels. Summary of the Invention

[0004] To address the numerous defects and shortcomings in the aforementioned background technology, the inventors have made improvements and innovations. After numerous experiments and optimizations, they have developed a device capable of efficiently and stably and continuously automatically producing metal tube sandwich panels. Specifically, this utility model is implemented as follows:

[0005] An automated welding production line for structural tube core plates is provided for manufacturing structural tube core plates, particularly composite plates that require the insertion and welding of metal tubes between two layers of metal plates. It mainly includes:

[0006] 1. Lifting and Conveying Truss: Used to suspend, support, and move two metal plates to be welded, ensuring they are horizontally parallel and vertically suspended. The truss has rails or channels at its bottom, on which lifting devices for clamping the metal plates are installed. These devices can move along the rails or channels on the truss, facilitating the entry and exit of the metal plates from the welding station. Lifting columns on both sides of the truss can raise or lower the metal plates.

[0007] 2. Substrate and Insertion Tube Top Sheet: The substrate supports the metal sheet, its length matching the sheet material and its thickness adapting to the core material thickness of the core board. The insertion tube top sheet is installed on the top or bottom surface of the substrate, depending on the actual operating procedure. It has multiple support slots that align with through holes in the metal sheet, serving as guides when two metal tubes are inserted from both sides. A positioning mechanism is located on the substrate to precisely align the metal sheet with the substrate, ensuring welding quality. The positioning mechanism includes a pneumatically driven positioning plug whose shape matches the through holes in the metal sheet, inserting into the through holes to position the metal sheet.

[0008] 3. Pressure Plate Mechanism: Distributed on both sides of the substrate, it consists of a power mechanism (such as a pneumatic push rod) and a pressure plate, used to fix the metal sheet during welding. Under the action of the cylinder push rod, the pressure plate presses the metal sheet parallel to ensure uniform pressure and prevents the sheet from deforming.

[0009] 4. Insertion and Welding Mechanism: Multiple insertion and welding mechanisms can be used in combination, divided into two groups, installed on both sides of the substrate. Each group includes an insertion device and a laser welding device. The insertion device is used to connect with the metal tube feeding mechanism (the metal tube feeding mechanism is an existing mechanism and will not be described in detail in this utility model). The metal tube feeding mechanism can sequentially feed individual metal tubes into the insertion device. The insertion device inserts the metal tube into the through hole of one metal plate to the through hole of another metal plate, forming a horizontally placed insertion tube between the two metal plates. The laser welding device immediately welds the contact surface between the metal tube and the metal plate after the metal tube is in place, making it firmly formed into an integral structure. The translation mechanism and push rod mechanism can control the translation of the insertion and welding mechanism along the frame to ensure precise alignment for each welding and insertion operation. The first push rod mechanism pushes the insertion device closer to the metal plate, and the second push rod mechanism pushes the insertion push head to insert the metal tube into the through hole. The insertion and welding mechanisms located on both sides of the substrate form a situation where the insertion device on one side is horizontally aligned with the laser welding device on the other side, and the laser welding device on one side is horizontally aligned with the insertion device on the other side. After the inserted metal tube is in place, one end of the metal tube is immediately welded, thereby completing the insertion and welding process of a row of metal tubes simultaneously on both sides.

[0010] The advantages of this utility model compared to the prior art are as follows:

[0011] 1. Improved Welding Quality and Consistency: Laser welding boasts a highly concentrated energy density, enabling precise and rapid melting and solidification processes, reducing the heat-affected zone and minimizing material thermal deformation. Compared to brazing, laser welding eliminates the need for additional filler metal, reducing the possibility of impurity introduction and improving weld purity and strength. Laser welding ensures consistency in weld depth and width, enhancing weld quality and reliability.

[0012] 2. Improved Welding Production Efficiency: This equipment adopts an automated control system. From the feeding and unloading of metal sheets, positioning, clamping to welding, the entire process requires no manual intervention, greatly improving production efficiency. In particular, through precise positioning and pressure plate mechanisms, metal sheets can be quickly and accurately aligned and fixed, and welding can begin automatically once ready. The equipment is designed with two sets of tube insertion and welding mechanisms, which can work on both sides of two metal sheets simultaneously. This means that two through holes can be processed simultaneously in each operation, significantly shortening the manufacturing cycle of a single product. The efficient coordination of the tube feeding equipment and tube insertion device, coupled with the precise control of the translation mechanism, achieves continuous and uninterrupted metal tube supply and tube insertion, further increasing the production rate.

[0013] 3. High Yield: Due to the high precision and low thermal deformation characteristics of laser welding, as well as the high-quality welding ensured by the automated system, the substrate provides a stable template for the welding process. Combined with the pressure plate mechanism, it allows two metal plates to be aligned and attached to both sides of the substrate. The relative position between the two metal plates is determined by the substrate and its positioning mechanism, improving alignment accuracy. Combined with the tube insertion top tile, it provides reliable assurance for the success rate and smoothness of subsequent tube insertion. The metal plates are firmly fixed throughout the welding process, thus maintaining a stationary position and avoiding deformation. Therefore, after welding, the entire metal plate surface is flat and regular, improving the quality of the finished product, and ensuring high consistency in the specifications and quality of profiles obtained from mass production.

[0014] 4. High Flexibility and Adaptability: Many components of the equipment, such as the positioning mechanism, pressure plate mechanism, and tube insertion device, adopt a modular design, which facilitates combination and flexible adjustment according to different product specifications, and allows for quick and efficient maintenance and replacement. It also allows for adjustment according to different specifications of tubular sandwich panels. The tube insertion top cover is replaceable, meaning the equipment can adapt to metal tubes of different diameters and through holes with different spacing, improving the equipment's adaptability and production flexibility.

[0015] In summary, the automatic welding production device of this utility model, by adopting laser welding technology and a highly integrated automated control system, not only significantly improves welding quality and production efficiency, but also optimizes cost structure and enhances production flexibility, providing strong technical support for the mass production of structural tube core plates. Attached Figure Description

[0016] Figure 1 This is a three-dimensional structural view of an automatic welding production equipment for structural tube core plates according to the present invention.

[0017] Figure 2 A three-dimensional view of the substrate structure of the automated welding production equipment for structural tube core material plates;

[0018] Figure 3 A three-dimensional structural diagram of the tube insertion and welding mechanism of an automated welding production equipment for structural tube core plates;

[0019] Figure 4 A three-dimensional view of the pressure plate mechanism of the automatic welding production equipment for structural tube core material plates;

[0020] Figure 5 This is a partially enlarged structural schematic diagram of an automatic welding production equipment for structural tube core plates according to the present invention.

[0021] Figure 6 A schematic diagram of the positioning plug structure for an automated welding production equipment for structural tube core plates;

[0022] Figure 7 This is a schematic diagram of the clamping process of the pressure plate mechanism of this utility model;

[0023] Figure 8 Side view of the lifting and conveying truss of the automated welding production equipment for structural tube core plates;

[0024] Figure 9 This is a schematic diagram of the material unloading equipment in an automatic welding system for structural tube core plates.

[0025] Figure 10 A schematic diagram of the working state of the tube insertion and welding mechanism of the automatic welding production equipment for structural tube core material plates;

[0026] Figure 11 A schematic diagram of the metal tube cutting process for the insertion and welding mechanism;

[0027] Figure 12 A schematic diagram showing the state in which the first pusher mechanism of the cannulation and welding mechanism pushes the cannulation device forward.

[0028] Figure 13 A schematic diagram showing the state of the insertion pusher of the insertion and welding mechanism pushing the metal tube into place;

[0029] Figure 14 This is a schematic diagram showing the working state of the structural tube core material plate during welding of this utility model.

[0030] Figure 15 This is a schematic diagram showing the highest position of the structural tube core material plate during the welding operation of this utility model.

[0031] Figure 16 This is a schematic diagram of the structure of the insertion tube top tile with limiting function in an embodiment of the present invention;

[0032] Figure 17 This is a schematic diagram of the limiting mode of the insertion tube top tile with limiting function in an embodiment of the present invention;

[0033] in:

[0034] 1—Metal sheet, 11—Through hole,

[0035] 2—Metal pipe,

[0036] 3—Lifting and conveying truss, 31—Platform, 32—Truss, 33—Lifting device, 34—Truss lifting column;

[0037] 4—Base plate, 41—Insertion tube top tile, 42—Support slot, 43—Positioning plug, 44—Modular limiting strip, 45—Limiting arc block;

[0038] 5—Pressure plate mechanism, 51—Pressure holding panel, 52—Base, 53—Cylinder push rod;

[0039] 6—Insertion and welding mechanism; 61—Insertion device; 62—Laser welding device; 63—Base plate; 64—Translation track; 65—Translation rack; 66—Servo motor; 67—First push rod mechanism; 68—Second push rod mechanism; 69—Insertion push head; 60—Insertion connector; 70—Metal tube feed trough. Detailed Implementation

[0040] To make the technical means, inventive features, objectives, and effects of this utility model readily understandable, the technical solution of this utility model will be further described in detail below with reference to the accompanying drawings and specific embodiments. It should be noted that, unless otherwise specified, the embodiments and features in the embodiments of this application can be combined with each other. The present utility model will now be described in detail with reference to the accompanying drawings and embodiments.

[0041] Example 1: An automatic welding production equipment for structural tube core plates, mainly comprising:

[0042] The lifting and conveying truss 3 is used to hoist two metal plates 1 to be welded, and can drive the two metal plates to move horizontally or vertically, or keep them fixed. The metal plates 1 are pre-processed. Before welding, several circular through holes 11 are cut on the surface of the metal plates 1 and evenly distributed in several rows. The size of the two metal plates 1 and the through holes 11 on them are matched and adapted to each other. The bottom surface of the truss 32 of the lifting and conveying truss 3 is equipped with a slide rail or slide groove. The slide rail or slide groove is equipped with a lifting device 33 for clamping and suspending the metal plates 1. The two metal plates 1 are horizontally parallel and vertical, and are clamped and suspended on the slide rail or slide groove along their long side top by multiple sets of lifting devices 33. The truss 32 is equipped with an infeed and discharge drive mechanism, which can drive the lifting device 33 on the truss. The lifting device 33 can move back and forth along the length of the truss 32 on the bottom surface, that is, the lifting device 33 can clamp two parallel metal plates 1 and move them along the slide rail to enter and exit the welding station; the truss lifting column 34 is located at both ends of the truss 32 and can synchronously lift and lower the truss 32 horizontally; the specific material feeding and discharging drive mechanism is a common drive mechanism in the prior art, such as using chain belt drive; and the lifting drive equipment is similar to the lifting column structure, with the lifting columns at both ends lifting and lowering synchronously and in the same amount to ensure that the metal plates 1 are kept in a horizontal direction and lifted and lowered synchronously and flatly; the lifting and conveying truss 3 provides the material feeding and discharging of the metal plates 1, and is responsible for continuously and indirectly lifting the metal plates 1 during the welding process, and can transport the plates out of the welding station and unload them after welding is completed;

[0043] The substrate 4 serves as the positioning and support for the two metal plates 1 during welding, and also provides guidance and support for the metal tube 2 to be welded during insertion. The substrate remains stationary during welding, or can form relative displacement with the insertion and welding mechanism 6 or the lifting and conveying truss 3. The substrate 4 is located at the welding station, standing directly below the lifting and conveying truss 3. Its length is not shorter than the length of the metal plate 1 to be welded, and its thickness is adapted to the core material thickness of the structural tube core material plate to be welded. The top surface of the substrate 4 is provided with an insertion top tile 41, and the insertion top tile 41 is provided with several horizontal support slots 42. The number and position of the support slots 42 are adapted to the number and position of each horizontal row of through holes 11 opened on the metal plate 1. The width of the support slots 42 is not less than the diameter of the metal tube 2 to be welded. The insert top tile 41 can be designed as a replaceable, movable mounting type, installed on the top of the substrate 4 along the length of the top surface of the substrate 4. The width of the support slot 42 is adapted to the specifications of the tubular sandwich plate to be prepared. It is usually semi-groove shaped, with an opening at the top and an arc-shaped groove at the bottom, used to provide positioning and support for the inserted metal tube 2 during the welding process. The number and specifications of the support slot 42 are designed to match the number, spacing, and size of the through holes 11 on the metal plate 1. The length of the entire substrate 4 and the insert top tile 41 is not shorter than the length of the metal plate 1. The initial feeding position is based on the alignment of the uppermost row of through holes 11 on the metal plate 1 with the support slots 42 of the insert top tile 41.

[0044] When the two metal plates 1 are inserted into their respective positions on both sides of the substrate 4, they stop. At this time, in order to make the metal plates 1 completely aligned with the substrate 4, the positioning mechanism on the substrate 4 is used to position the metal plates 1 on both sides. The mesh frame of the substrate 4 is also provided with several positioning mechanisms, which are evenly distributed at various key points to align the metal plates 1 relative to the substrate 4. The positioning mechanism includes a pneumatic mechanism, which can drive the positioning plugs 43 at both ends to extend or retract. The shape and size of the positioning plugs 43 are adapted to the shape and size of the through holes 11 on the metal plates 1, and the top edge of the positioning plugs 43 is provided with a beveled bevel. After the pneumatic mechanism drives the positioning plugs 43 to extend, the positioning plugs 43 can be inserted into the through holes 11 on the corresponding metal plates 1 to position and calibrate the positional accuracy between the metal plates 1 and the substrate 4. When the metal plates 1 need to be moved upward for adjustment or unloaded, the pneumatic mechanism can drive the positioning plugs 43 to retract from the through holes 11. That is, when the positioning plug 43 extends, its surface is higher than the surface of the substrate 4, and by passing through the through hole 11, it achieves the purpose of calibrating the metal plate 1. The beveled chamfer design is to help the through hole 11 of the metal plate 1 be easily found and smoothly guided for positioning. In this embodiment, the specific mechanism for controlling the extension and retraction of the positioning plug 43 is prior art. It is possible to use a pneumatic or hydraulic telescopic mechanism to drive the positioning plug 43 to extend, or so on. This embodiment will not describe it in detail.

[0045] After the metal plate 1 and the substrate 4 are positioned and aligned, the pressure plate mechanism 5 provides clamping force to the metal plate 1 from both sides of the substrate 4, pressing the two metal plates 1 firmly onto the substrate 4 to fix their positions. The pressure plate mechanism 5 can be several units placed side-by-side or a single unit, divided into two groups placed on both sides of the substrate 4. Each group includes a power mechanism and a pressure plate 51. The power mechanism can extend the pressure plate 51 to contact the metal plate 1, making the metal plate 1 adhere tightly to the surface of the substrate 4 to fix and position it, or it can separate and retract the pressure plate 51 from the metal plate 1. In this embodiment, the power mechanism is a pneumatic push rod or a motor drive, used to drive the pressure plate 51 to push the metal plate 1 from the outside towards the substrate 4, achieving a horizontal pressing force that is maintained continuously, allowing the two metal plates to be pressed inwards simultaneously from both sides of the substrate 4. At this time, the distance between the two metal plates is the product thickness of the structural tube sandwich plate to be produced. In this embodiment, each pressure plate mechanism 5 has a power mechanism with a base 52. The base 52 is placed on the bracket of the welding station and is used to install the cylinder push rod 53. The rod head of the cylinder push rod 53 is connected to the push head. The push head is connected to the pressure plate 51. The other side of the push head, through the cooperation of the base plate, the slider and the slide rail, enables the pressure plate 51 to extend and retract horizontally relative to the base 52, so that the pressure plate 51 extends horizontally to press the metal plate 1 in a way that is parallel to the metal plate 1, and provides a uniform parallel pressure. During clamping, multiple cylinders work together to adjust and coordinate with each other, and their synchronous extension and retraction ensure that the clamping panel 51 remains parallel to the metal panel as it approaches and contacts the metal panel. Upon contact, the entire panel makes contact simultaneously, thus preventing damage to the metal plate 1. During welding, to stably and safely clamp the metal panel, in addition to controlling the angle of the clamping panel 51, uniform clamping force must be considered. If the area of ​​the clamping force point is too small, it can easily cause local deformation and damage to the metal panel. Therefore, the clamping panel 51 has a rectangular frame structure, applying force to the metal panel over a larger area. This allows the metal panel to be evenly stressed over a large area while making uniform contact with the substrate 4, providing a more stable and safe clamping state. This ensures the stability of the welding process and that the entire metal plate 1 remains flat and regular after welding, without deformation.

[0046] Preferably, considering that there may be a gap between the metal sheet 1 and the substrate 4 after feeding, which may prevent the positioning plug 43 from extending into the through hole 11, the pressure plate mechanism 5 can drive the pressing panel 51 to be close to the substrate 4, so that the metal sheet 1 is as close to the substrate 4 as possible and maintains a pre-clamping state so that the positioning operation of the positioning plug 43 can be carried out smoothly; after the positioning is completed, a clamping depth is compensated to clamp the metal sheet 1.

[0047] The insertion and welding mechanism 6 comprises several sets, arranged in two groups and installed on both sides of the substrate 4. Each set includes an insertion device 61 and a laser welding device 62. The insertion device 61 and the laser welding device 62 can form a relative displacement with the metal plate. The insertion device 61 is connected to a tube feeding device and can push a single metal tube 2, which has been inserted into the through hole 11 on the metal plate 1, into the support slot 42 on the top surface of the substrate 4, so that the metal tube 2 is located between the corresponding through holes 11 of the two metal plates 1. The laser welding device 62 is used to weld the contact area between the metal tube 2 and the metal plate 1. Each set of insertion and welding mechanisms 6 on both sides is paired with the insertion device 61 on one side, so that the laser welding device 62 on the other side corresponds to the insertion device 61 on the other side. In this embodiment, the tube feeding device is as follows: Figure 11 As shown, the device is used to sequentially feed metal tubes into the metal tube feed trough 60, and the tube feeding device can move with the displacement of the tube insertion device 61, and continuously feed the metal tubes 2 in a flat state. One metal tube 2 can be fed into the metal tube feed trough 60 at a time. This invention is not an improvement on the metal tube 2 feeding mechanism, so the supply description of the metal tube 2 is not described in detail in this embodiment. After the insertion device 61 moves to the initial position, that is, it is aligned with the initial through hole 11 on the metal plate 1. In this embodiment, the first through hole 11 at the outermost end is used as the initial through hole 11. After the insertion device 61 is in place and aligned with the initial through hole 11, the insertion device 61 inserts the metal tube 2 into the initial through hole 11 and continues to push it deeper so that the metal tube 2 enters the support slot 42 and extends a section of its end face from the corresponding through hole 11 on the other side of the metal plate 1 before stopping. At this time, the metal tube 2 is placed between the two metal plates 1. After the metal tube 2 is inserted into place, it is directly facing the laser welding device 62 on the other side. The laser welding device 62 on the other side immediately completes the welding. At the same time, the insertion device 61 on the other side inserts the metal tube 2 into another through hole 11. The metal tube 2 is welded by the laser welding device 62 on this side. That is, the insertion and welding on both sides work synchronously and work together to complete the insertion and welding of the first row of metal tubes 2.

[0048] Preferably, the translation mechanism includes a translation track 64 and a translation rack 65 mounted on the table surface at the top of the frame 31, a servo motor 66 mounted on the base plate 63, and a gear at the output end meshing with the translation rack 65, and a base plate 63 mounted on the translation track 64; thus, the base plate 63 can slide along the translation track 64 by rotating the gear, and the servo motor 66 drives the gear to rotate and move relative to the translation rack 65, thereby causing the base plate 63 to move along the translation track 64. The insertion device 61 and the laser welding device 62 are mounted on the base plate 63; the servo motor 66 can drive the insertion device 61 and the laser welding device 62 to continuously reciprocate between each adjacent support slot 42 and stop: the insertion device 61 sequentially pushes the metal tube 2 corresponding to each support slot 42 from the tube feeding device into the support slot 42; the laser welding device 62 sequentially welds and fixes the metal tube 2 in each support slot 42 to the metal plate 1. In this embodiment, the installation of the translation track 64, translation rack 65 and servo motor 66 is existing technology, and the purpose is to control the insertion and welding mechanism 6 to move, stop and move again sequentially between the insertion support slots with high precision.

[0049] Preferably, a first push rod mechanism 67 is installed on the base plate 63, and the insertion device 61 is connected to the push rod of the first push rod mechanism 67. When the translation mechanism drives the base plate 63 to move laterally so that the insertion device 61 is aligned with the target through hole 11, the first push rod mechanism 67 is activated, pushing the insertion device 61 closer to the metal plate 1, so that the front end of the insertion device 61 and the connecting pipe head are aligned with and in contact with the through hole 11 of the metal plate 1, thereby achieving the alignment of the insertion device 61 and the through hole 11. The insertion device 61 also includes a second push rod mechanism 68, an insertion push head 69, a metal tube feed groove 70, and an insertion connector 60, wherein: the metal tube feed groove The 70 can accommodate a falling metal tube 2. The tube insertion connector 60 is located at the front end of the metal tube feed groove 70, and the tube insertion pusher 69 is located at the rear end of the metal tube feed groove 70. After alignment, the tube insertion pusher 69 is pushed laterally under the action of the second push rod mechanism 68, pushing the metal tube 2 into the corresponding through hole 11 and into the support slot 42. When the tube insertion pusher 69 has fully pushed its stroke to the end, the two ends of the metal tube 2 are exactly placed between the corresponding through holes 11 of the two metal plates 1. Then the second push rod mechanism 68, the tube insertion pusher 69, the first push rod mechanism 67 and the tube insertion device 61 return to their original positions, waiting to reach the next tube insertion station. That is, the insertion device 61 can approach the metal plate 1 as the first push rod mechanism 67 extends, so that the insertion tube connector 60 and the corresponding support slot 42 on the top of the substrate 4 are connected. The second push rod mechanism 68 is connected to the insertion tube push head 69, which can drive the insertion tube push head 69 to extend or retract. When it extends, it pushes the metal tube 2 in the metal tube feed groove 70 forward. After passing through the insertion tube connector 60, the metal tube 2 finally enters the support slot 42 and is placed between the through holes 11 of the metal plates 1 on both sides.

[0050] In this embodiment, the number of sets of insertion and welding mechanisms 6 and the number of sets of pressure plate mechanisms 5 can be allocated according to the length of the substrate 4. Multiple sets of mechanisms can work together to perform the operation. After the combination of multiple sets of insertion and welding mechanisms 6, they can perfectly fit the entire row of through holes 11 and metal tubes 2 of the substrate 4 and metal plate 1 that need to be inserted and welded. Similarly, multiple sets of pressure plate mechanisms 5 can perfectly clamp the entire surface of the metal plate 1. The specific number can be flexibly adjusted and arranged according to the specifications and dimensions of the actual metal plate 1 to be welded, so that each set of mechanisms can work synchronously and coordinately to complete the welding operation.

[0051] As can be seen, in this embodiment 1, when the lifting and conveying truss 3 drives the metal plate to move upward gradually, the base plate 4, the pressure plate mechanism 5 and the insertion and welding mechanism 6 can maintain a fixed horizontal height without lifting or lowering, and the insertion and welding mechanism 6 can gradually move relative to the metal plate through the translation mechanism.

[0052] Preferably, when the lifting conveyor truss 3 and the metal plate remain fixed, the base plate 4, the pressure plate mechanism 5, and the insertion and welding mechanism 6 can be displaced and lowered relative to the metal plate, and the insertion and welding mechanism 6 can be gradually displaced relative to the metal plate through a translation mechanism; in this preferred embodiment, a welding method in which the metal plate remains fixed is provided, the lifting conveyor truss 3 fixes the metal plate at the highest position, and the base plate 4, the pressure plate mechanism 5, and the insertion and welding mechanism 6 are all mounted on a liftable base plate frame, with the highest position as the starting position. At this time, the base plate 4 The top row of holes is aligned with the top row of holes in the metal sheet, and the welding mechanism 6 can jointly insert metal tubes into the top row of holes and weld them on both sides. After the first row is welded, the pressure plate mechanism 5 is released, the positioning mechanism of the base plate 4 retracts, and the liftable base plate frame descends by one unit height. That is, it can insert metal tubes into the second row of holes in the metal sheet and weld them. Following this pattern, the base plate 4, the pressure plate mechanism 5, and the insertion and welding mechanism 6 descend layer by layer on the liftable base plate frame until the insertion and welding of the tubes into the holes of each row of metal sheets are completed. In one embodiment, a pit can be opened in the ground, and the liftable base plate frame, base plate 4, pressure plate mechanism 5, and insertion and welding mechanism 6 can all be placed in the pit. The lifting and lowering can be carried out in the pit, while the metal sheet remains stationary on the ground. This method can be used in indoor places where height is limited.

[0053] Preferably, the substrate 4 further includes: a support slot 42 is a split structure, with a movable limiting strip 44 arranged horizontally along the length of the substrate in its middle part. Both ends of the movable limiting strip 44 are equipped with cooperating power devices, which can push the movable limiting strip to extend and retract laterally. A limiting arc-shaped block 45 is installed on the movable limiting strip, and its inner surface is provided with an arc surface adapted to the curvature of the metal tube. The limiting arc-shaped block, with the extension and retraction displacement of the movable limiting strip, achieves the limiting and release of the metal tube relative to each support slot 42. In this embodiment, the power device is a cylinder and a matching push rod structure, with the cylinders and push rods at both ends engaging in a push-pull mechanism. The arc surface of the limiting arc block 45 matches the upper arc surface of the metal tube. When the metal tube is being inserted, the movable limiting strip remains extended. After the metal tube is inserted, there are reliable limits on all sides, preventing the metal tube from tilting upwards and getting stuck during the insertion process, thus avoiding insertion failure. After all the metal tubes in the same row have been inserted and welded, the movable limiting strip retracts to make room for the metal tube to move upwards, and then the metal plate moves up to the next row waiting for welding.

[0054] Preferably, when the insertion and welding mechanism 6, the substrate 4, and the pressure plate mechanism 5 remain fixed, the lifting and conveying truss 3 can drive the metal plate to translate and lift relative to the insertion and welding mechanism 6, the substrate 4, and the pressure plate mechanism 5. In this preferred embodiment, the substrate 4, the pressure plate mechanism 5, and the welding mechanism 6 can be set to be fixed, without rising, falling, or moving laterally, but rather achieved by the displacement of the metal plate. Specifically, the metal plate descends until its uppermost row of through holes aligns with the substrate 4 and the welding mechanism 6. Subsequently, the lifting and conveying truss 3 can drive the metal plate to move to the starting position, stopping when the first through hole is directly aligned with the plug of the insertion and welding mechanism 6. Then, the positioning air plug and the pressure plate mechanism of the substrate 4 clamp the metal plate, the insertion and welding mechanism 6 starts, inserting the metal tube into the first set of through holes, and the welding mechanism of the opposite insertion and welding mechanism 6 welds the first metal tube. At the same time, the same side... The welding mechanism simultaneously welds the second metal tube inserted by the tube insertion mechanism on the opposite side. After all are completed, the positioning air plug and pressure plate mechanism are released, and the lifting and conveying truss 3 can move the metal plate to a position one through hole unit, and complete the welding of the other end of the first group of metal tubes. Then, the above steps are repeated to perform tube insertion and welding operations on the second group of through holes, thus forming a cyclical operation until the entire row of through holes has completed tube insertion and welding operations. The lifting and conveying truss 3 can move the metal plate up one row of through hole displacement, and repeat the above steps from the current through hole position as the initial position to complete the tube insertion and welding operations of the second row of through holes, until the entire metal plate is prepared into a structural tube core material plate.

[0055] Finally, it should be noted that the concept, specific structure, and technical effects of this utility model have been clearly and completely described above in conjunction with the embodiments and accompanying drawings, so as to fully understand the purpose, features, and effects of this utility model. Obviously, the described embodiments are only a part of the embodiments of this utility model, not all of them. Other embodiments obtained by those skilled in the art based on the embodiments of this utility model without creative effort are all within the scope of protection of this utility model. Furthermore, all connections and connection relationships mentioned herein do not simply refer to direct connection of components, but rather to the ability to form a better connection structure by adding or reducing connecting accessories according to specific implementation conditions. The various technical features in this utility model can be combined interactively without contradicting each other.

Claims

1. An automatic welding production equipment for structural tube core plates, used in conjunction with a tube feeding device, characterized in that... include: The lifting and conveying truss (3) can lift two metal plates (1) to be welded and can drive the two metal plates to move horizontally and vertically. The substrate (4) is placed upright on the welding station, and the top surface is provided with a tube-inserting top tile (41), the thickness of which is compatible with the core material thickness of the structural tube core material plate to be welded and produced. The pressure plate mechanism (5) consists of several units, divided into two groups and placed on both sides of the substrate (4). It includes a power mechanism and a pressure plate (51). The power mechanism can drive the pressure plate (51) to extend and contact the metal plate (1), and make the metal plate (1) stick tightly to the surface of the substrate (4) to fix and position the metal plate (1), or drive the pressure plate (51) to separate and retract from the metal plate (1). The tube insertion and welding mechanism (6) includes several sets and is divided into two groups and installed on both sides of the substrate (4). It can form a relative displacement with the metal plate (1) and can be translated laterally along the metal plate to align with the through hole (11) of the metal plate. It is connected to the tube feeding device and can push the single metal tube (2) that is dropped into the through hole (11) to connect the two metal plates (1). It can perform laser welding on the contact part between the metal tube (2) and the metal plate (1).

2. The automatic welding production equipment for structural tube core plates according to claim 1, characterized in that, The substrate (4) is placed directly below the lifting and conveying truss (3), and its length is not shorter than the length of the metal plate (1) to be welded. The insert top tile (41) is provided with a number of horizontal support slots (42). The number and position of the support slots (42) are adapted to the number and position of each horizontal row of through holes (11) on the metal plate (1). The width of the support slots (42) is not less than the diameter of the metal tube (2) to be welded.

3. The automatic welding production equipment for structural tube core plates according to claim 1 or 2, characterized in that, Each set includes a tube insertion device (61) and a laser welding device (62). The tube insertion device (61) and the laser welding device (62) can form a relative displacement with the metal plate. The tube insertion device (61) is connected to the tube feeding device and can push the single metal tube (2) that is dropped into the metal plate (1) into the through hole (11) and into the support slot (42) on the top surface of the substrate (4), so that the metal tube (2) is located between the relative through holes (11) of the two metal plates (1). The laser welding device (62) is used to weld the contact part between the metal tube (2) and the metal plate (1). Each set of tube insertion and welding mechanism (6) on both sides is opposite to each other, so that the tube insertion device (61) on one side corresponds to the laser welding device (62) on the other side.

4. The automatic welding production equipment for structural tube core plates according to claim 1 or 2, characterized in that, The substrate (4) is provided with several positioning mechanisms. The positioning mechanism includes positioning plugs (43) on both sides that can be driven to extend or retract. The shape and size of the positioning plugs (43) are adapted to the shape and size of the through holes (11) on the metal plate (1). After the positioning plugs (43) extend, they can be inserted into the through holes (11) on the metal plate (1) corresponding to them, for positioning and calibrating the positional accuracy between the metal plate (1) and the substrate (4). When the metal plate (1) needs to be moved, the pneumatic mechanism can drive the positioning plugs (43) to retract from the through holes (11).

5. The automatic welding production equipment for structural tube core plates according to claim 3, characterized in that, The insertion and welding mechanism (6) is displaced by a translation mechanism, which includes a translation track (64), a translation rack (65), a servo motor (66), and a base plate (63) mounted on the translation track (64). The base plate (63) can slide along the translation track (64), and the base plate (63) is connected to the translation rack (65) in a transmission connection. The servo motor (66) is connected to the translation rack (65) through gear engagement. The base plate (63) can be moved along the translation track (64) by the rotation of the gear. The tube insertion device (61) and the laser welding device (62) are installed on the base plate (63). The servo motor (66) can drive the insertion device (61) and the laser welding device (62) to continuously reciprocate and stop between each adjacent support slot (42): the insertion device (61) sequentially pushes the metal tube (2) corresponding to each support slot (42) from the tube feeding device into the support slot (42); the laser welding device (62) sequentially welds and fixes the metal tube (2) in each support slot (42) to the metal plate (1).

6. The automatic welding production equipment for structural tube core plates according to claim 5, characterized in that, The translation rack (65) is configured as a translation screw. The translation screw is driven by a matching screw sleeve. The screw sleeve is installed on the base plate (63). The translation screw is connected to a servo motor (66) at one end. The servo motor (66) drives a translation screw to rotate, thereby controlling the displacement of the base plate. The translation rack (65) directly penetrates the base plate (63) of multiple sets of insertion tubes and welding mechanisms (6) on the same side.

7. The automatic welding production equipment for structural tube core plates according to claim 6, characterized in that, A first push rod mechanism (67) is installed on the base plate (63), and the insertion device (61) is connected to the push rod of the first push rod mechanism (67). The insertion device (61) also includes a second push rod mechanism (68), an insertion push head (69), a metal tube feed groove (70), and an insertion connector (60), wherein: the metal tube feed groove (70) can accommodate a falling metal tube (2), the insertion connector (60) is located at the front end of the metal tube feed groove (70), and the insertion push head (69) is located at the rear end of the metal tube feed groove (70); The insertion device (61) can approach the metal plate (1) as the first push rod mechanism (67) extends, so that the insertion connector (60) and the corresponding support slot (42) on the top of the substrate (4) can be connected. The insertion edge of the insertion connector (60) has an inwardly inclined guide slope. The guide slope can be adapted to the flange of the through hole edge of the metal plate and form a guide so that it is concentrically aligned with the through hole. The second push rod mechanism (68) is connected to the tube insertion push head (69), which can drive the tube insertion push head (69) to extend or retract. When it extends, it pushes the metal tube (2) in the metal tube feed groove (70) forward. After passing through the tube insertion connector (60), the metal tube (2) finally enters the support slot (42) and is placed between the through holes (11) of the metal plates (1) on both sides.

8. The automatic welding production equipment for structural tube core plates according to claim 1, characterized in that, The substrate (4) further includes: the support slot (42) is a split structure, and a movable limiting strip (44) is provided in the middle along the length direction of the substrate. The two ends of the movable limiting strip (44) are equipped with mutually cooperating power devices. The power devices can push the movable limiting strip to extend and retract laterally. The limiting arc block (45) is installed on the movable limiting strip. Its inner side is provided with an arc surface that matches the curvature of the metal tube. The limiting arc block moves with the extension and retraction of the movable limiting strip to limit and release the metal tube relative to each support slot (42).

Images