Device for improving welding quality of structural pipe core material plate

Abstract

The utility model discloses a device for improving the welding quality of a structural pipe core material plate. The device comprises a base plate (4) located on a welding station and a base plate (5), wherein the base plate (4) comprises a plate body and a pipe inserting top tile (41) arranged on the top face or the bottom face; the positioning device is arranged between the two metal plates (1) in the welding process and is used for positioning and supporting the metal plates (1); the pipe inserting top tile (41) is used for guiding a to-be-welded metal pipe (2) when the metal pipe (2) is inserted; the plate pressing mechanisms (5) are arranged on the two side faces of the base plate (4) and used for providing clamping force for the metal plates (1) from the two sides of the base plate (4) in the welding process, so that the two metal plates (1) are compacted and attached to the base plate (4) from the two sides, and the two metal plates (1) are fixed to the base plate. The base plate (4) is used for positioning the metal plate and used as a base plate for supporting and aligning the metal plate, and is matched with the pressing plate mechanism, so that the metal plate is always kept in a flat posture in the welding process, butt-joint installation of an automatic production system can be met, and the production quality and efficiency are also improved.

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 a device for improving the welding quality of structural tube core panels. Background Technology

[0002] In the construction industry, hollow core panels have been widely used due to their significant reduction in material waste associated with solid core panels. In recent years, sandwich panels, especially those with structural tubes, have gradually gained popularity due to their unique advantages. These panels achieve a significant reduction in overall weight without sacrificing structural strength by embedding metal tubes between two layers of metal plates and welding them together. This feature not only optimizes transportation and installation processes but also reduces the building's self-weight. The introduction of structural tubes further enhances the rigidity and stability of the panels, effectively dispersing stress and preventing deformation, especially when facing bending or torsional loads. Furthermore, the flexible design of structural tubes allows for adjustments in position, size, and quantity to meet specific needs, providing customized solutions. Prefabricated sandwich panels facilitate on-site assembly and connection, reducing on-site processing intensity and improving construction efficiency and quality consistency. Their lightweight and excellent thermal insulation properties contribute to energy conservation and emission reduction, lowering operating costs and aligning with green building principles. Through innovative design, structural tube sandwich panels not only effectively solve the problem of material waste but also comprehensively improve the performance of building structures, meeting the comprehensive requirements of modern architecture for efficiency, environmental protection, safety, and economy.

[0003] In existing technologies, welding between metal pipes and metal plates, especially using brazing technology, suffers from problems such as long processing time, low efficiency, and low yield. While laser welding can partially solve these problems, it is still insufficient in terms of overall plate forming efficiency. Furthermore, the high temperatures generated during the welding process can easily lead to irregularities and unevenness on the metal plate surface, thus reducing the yield. Moreover, current automated production technologies cannot meet the high-efficiency requirements of pipe welding, resulting in both low efficiency and unstable weld quality, which are the shortcomings of existing technologies. Utility Model Content

[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 processing device that is efficient, stable, and improves the overall quality of welding. Specifically, this utility model is implemented as follows:

[0005] An apparatus for improving the welding quality of structural tube core material plates includes: a base plate (4), located at the welding station, including a plate body and a tube insertion top tile (41) disposed on the top or bottom surface; placed between two metal plates (1) during the welding process to provide positioning and support for the metal plates (1); the tube insertion top tile (41) provides guidance when inserting the metal tube (2) to be welded; and a pressure plate mechanism (5), disposed on both sides of the base plate (4), used to provide clamping force on the metal plates (1) from both sides of the base plate (4) during the welding process, so that the two metal plates (1) are pressed and attached to the base plate (4) from both sides, and the two metal plates (1) are fixed on the base plate.

[0006] Preferably, the substrate (4) is placed upright on the welding station along its length, and its thickness is adapted to the core material thickness of the structural tube core material plate to be welded. The length of the substrate (4) can be adapted to the length of the metal plate to be welded, or longer than the metal plate or shorter than the metal plate. When it is shorter than the metal plate, the metal plate is welded on the substrate (4) through multiple active lateral displacements during the welding process.

[0007] Preferably, the tube top tile (41) is provided with a number of horizontally penetrating support slots (42) that connect both sides of the substrate (4). 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), so that each support slot (42) corresponds to a set of through holes (11) and can connect the same set of through holes (11) of the two metal plates. The width of the support slot (42) is not less than the diameter of the metal tube (2) to be welded.

[0008] Preferably, the cross-section of the support slot (42) is semi-circular, U-shaped, or n-shaped. The width of the support slot (42) is adapted to the diameter of the through hole (11). The groove edge of the support slot (42) can be aligned with the edge of the through hole (11), so that the metal tube (2) can be smoothly inserted into the through hole (11) under the guidance of the groove wall of the support slot (42). The groove width of the support slot (42) allows the welded metal tube (2) to come out of the support slot (42) from the top or bottom.

[0009] Preferably, the substrate has inwardly recessed grooves or through holes on both sides evenly distributed on its surface. The grooves or holes are used to avoid the outward flange at the outer edge of the through hole on the metal plate, so that the surface of the substrate (4) does not contact the outward flange but contacts the surface of the metal plate. The spacing, specifications, and number of the grooves or holes are all matched with the specifications, distribution position, and number of the outward flange on the metal plate.

[0010] Alternatively, the substrate may be in the form of a grid, with the size, number, and distribution of the grid matching the specifications, number, and distribution of the outward-facing edges on the metal sheet.

[0011] Preferably, the substrate (4) is provided with a plurality of 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 driving mechanism can drive the positioning plugs (43) to retract from the through holes (11).

[0012] Preferably, there are at least two pressure plate mechanisms (5), which are divided into two groups and placed on both sides of the substrate (4). The pressure plate mechanism 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).

[0013] Preferably, the pressing panel (51) is uniformly provided with inwardly recessed grooves or through holes on both sides. The grooves or holes are used to avoid the outward flange at the outer edge of the through hole on the metal plate, so that the surface of the pressing panel (51) does not contact the outward flange but contacts the surface of the metal plate. The spacing, specifications, and number of the grooves or holes are all adapted to the specifications, distribution position, and number of the outward flange on the metal plate. Alternatively, the pressing panel (51) is in the shape of a grid plate, and the size, number, and distribution position of the grid are all adapted to the specifications, number, and distribution position of the outward flange on the metal plate.

[0014] Preferably, the substrate module (4) further includes: the support slot (42) is a split structure, the middle of which is provided with a movable limiting strip (44) that is horizontally placed along the length of the substrate, and the two ends of the movable limiting strip (44) are equipped with mutually cooperating power devices, which can push the movable limiting strip to extend and retract laterally, and the limiting arc block (45) is installed on the movable limiting strip, and 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).

[0015] The working principle of this utility model: This utility model provides a device for improving the welding quality of structural tube core material plates, which mainly includes: a base plate (4), located at the welding station, including a plate body and a tube insertion top tile (41) set on the top or bottom surface; placed between two metal plates (1) during the welding process to provide positioning and support for the metal plates (1); the tube insertion top tile (41) provides guidance when inserting the metal tube (2) to be welded; a pressure plate mechanism (5), set on both sides of the base plate (4), used to provide clamping force on the metal plates (1) from both sides of the base plate (4) during the welding process, so that the two metal plates (1) are pressed and attached to the base plate (4) from both sides, and the two metal plates (1) are fixed on the base plate. The substrate and pressure plate mechanism form a combined mechanism that works together as the core components for welding metal tube wall panels. The substrate supports two metal plates, its length matching the plate length and its thickness adapting to the desired core material thickness after forming. It can be understood as a template during the welding process. The two metal plates are attached to both sides of the substrate, determining their relative width and aligning them. The insertion top plate is installed on either the top or bottom surface of the substrate, depending on the specific operating procedure. The insertion top plate has multiple support slots that align with through-holes in the metal plates, guiding the insertion of the metal tube. A positioning mechanism is located on the substrate to precisely align the metal plates with the substrate, ensuring welding quality. The positioning mechanism includes a pneumatically driven positioning plug, its shape matching the through-holes in the metal plates, inserted into the holes to position the metal plates. The pressure plate mechanism is located on both sides of the substrate, consisting of a power mechanism (such as a pneumatic push rod) and a pressure plate, used to fix the metal plates during welding. The pressure plate is pressed against the metal sheet in parallel by the cylinder push rod to ensure uniform pressure and prevent the sheet from deforming.

[0016] The advantages of this utility model compared to the prior art are as follows:

[0017] 1. Improved welding quality and consistency: The substrate provides a stable template during the welding process. In conjunction with the pressure plate mechanism, it can align and attach two metal plates to both sides of the substrate. The relative position between the two metal plates can be determined through the substrate and its positioning mechanism, improving the alignment accuracy. In conjunction with the tube insertion top tile, it provides a reliable guarantee for the success rate and smoothness of the subsequent tube insertion process. The metal plates are always firmly fixed during the welding process, so the metal plates remain fixed and stationary during the welding process, avoiding the possibility of deformation. Therefore, after welding, the entire metal plate surface is flat and regular, improving the quality of the finished product, and the profile specifications and quality obtained from mass production are highly consistent.

[0018] 2. Suitable for automated production control: The positioning mechanism on the substrate can be connected to the control system. Its retractable positioning plug design allows for quick switching between positioning and non-positioning states, facilitating rapid displacement of the metal sheet when welding the next row of through holes. The pressure plate mechanism can also be connected to the control system and controlled by the system. It provides lateral clamping pressure on the metal sheet to fix the metal sheet when necessary, and can also quickly release the clamp when the metal sheet needs to be displaced. It can be well adapted to and connected to the entire automated sandwich panel production process, meeting the needs of automated production and improving production efficiency. Attached Figure Description

[0019] Figure 1 A three-dimensional view of the substrate structure of the device for improving the welding quality of the core material plate of the structure;

[0020] Figure 2 A magnified schematic diagram of a portion of the substrate structure of a device for improving the welding quality of structural tube core plates;

[0021] Figure 3 A three-dimensional view of the pressure plate mechanism of the device used to improve the welding quality of the structural tube core material plate;

[0022] Figure 4 This is a partially enlarged structural schematic diagram of a device for improving the welding quality of structural tube core plates according to the present invention;

[0023] Figure 5 A schematic diagram of a positioning plug structure for a device that improves the welding quality of structural tube core plates;

[0024] Figure 6 A three-dimensional structural view of a device for improving the welding quality of structural tube core plates according to this utility model;

[0025] Figure 7 This is a schematic diagram of the clamping process of the pressure plate mechanism of the present invention;

[0026] Figure 8 Side view of a lifting and conveying truss used to improve the welding quality of structural tube core plates;

[0027] Figure 9 This is a schematic diagram of the material unloading equipment in an automatic welding system for structural tube core plates.

[0028] Figure 10 This is a schematic diagram of the production status of the present invention during the welding process;

[0029] Figure 11 A schematic diagram of the working state of the tube insertion and welding mechanism of the device for improving the welding quality of the structural tube core plate;

[0030] Figure 12A three-dimensional structural diagram of the tube insertion and welding mechanism of the device for improving the welding quality of the structural tube core plate;

[0031] Figure 13 A schematic diagram of the metal tube cutting process for the insertion and welding mechanism;

[0032] Figure 14 A schematic diagram showing the state in which the first pusher mechanism of the cannulation and welding mechanism pushes the cannulation device forward.

[0033] Figure 15 A schematic diagram showing the state of the insertion pusher of the insertion and welding mechanism pushing the metal tube into place;

[0034] Figure 16 This is a three-dimensional structural view of a device for improving the welding quality of structural tube core plates according to the present invention.

[0035] Figure 17 This is a schematic diagram of the structure of the insertion tube top tile with limiting function in Embodiment 1 of the present invention;

[0036] Figure 18 This is a schematic diagram of the limiting mode of the insertion tube top tile with limiting function in Embodiment 1 of the present invention;

[0037] in:

[0038] 1—Metal sheet, 11—Through hole,

[0039] 2—Metal pipe,

[0040] 3—Lifting and conveying truss, 31—Platform, 32—Truss, 33—Lifting device, 34—Truss lifting column;

[0041] 4—Base plate, 41—Insertion tube top tile, 42—Support slot, 43—Positioning plug, 44—Modular limiting strip, 45—Limiting arc block;

[0042] 5—Pressure plate mechanism, 51—Pressure holding panel, 52—Base, 53—Cylinder push rod;

[0043] 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

[0044] 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.

[0045] Example 1: An apparatus for improving the welding quality of structural tube core material plates, wherein the base plate 4 is used for positioning and supporting two metal plates 1 during welding, and can provide guidance when inserting the metal tube 2 to be welded and support after insertion; the base plate remains stationary during the welding process, or can form relative displacement with the insertion and welding mechanism 6 or the lifting and conveying truss 3; the base plate 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, its thickness is adapted to the core material thickness of the structural tube core material plate to be welded, the top surface of the base plate 4 is provided with an insertion top tile 41, the insertion top tile 41 is provided with a plurality 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 opened on the metal plate 1, and 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.

[0046] 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.

[0047] 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.

[0048] 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.

[0049] Preferably, the substrate module 4 further includes: a support slot 42 with a split structure, wherein a movable limiting strip 44 is provided in the middle along the length of the substrate, and two ends of the movable limiting strip 44 are equipped with mutually cooperating power devices, which can push the movable limiting strip to extend and retract laterally. A limiting arc block 45 is installed on the movable limiting strip, and its inner side is provided with an arc surface adapted to 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. In this embodiment, the power device is a cylinder and a matching push rod structure, with the cylinder and push rod at both ends cooperating in a push-pull manner. The arc surface of the limiting arc block 45 matches the upper arc surface of the metal tube. During the tube insertion process, 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 insertion, thus avoiding insertion failure. After all the metal tubes in the same row have been inserted and welded, the movable limiting strip retracts, making room for the metal tubes to move upwards, and then the metal plate rises and moves to the next row waiting for welding. Preferably, the substrate module 4 also includes: the support slot 42 is a split structure, with a movable limiting strip 44 horizontally placed along the length of the substrate in its middle. The two ends of the movable limiting strip 44 are equipped with mutually cooperating power devices, which can push the movable limiting strip to extend and retract laterally. The limiting arc block 45 is installed on the movable limiting strip, and its inner side is provided with an arc surface adapted to 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. In this embodiment, the power equipment consists of 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 mates with the upper arc surface of the metal tube. During the tube insertion process, the movable limiting strip remains extended, ensuring reliable limiting around the metal tube after insertion, preventing the tube from tilting upwards and getting stuck, thus avoiding insertion failure. After all metal tubes in the same row have been inserted and welded, the movable limiting strip retracts, allowing space for the metal tubes to move upwards before the metal plate rises and moves to the next row of positions awaiting welding.

[0050] Example 2: The complete metal tubular profile manufacturing process, in addition to the process in Example 1, also includes:

[0051] 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;

[0052] Specifically: the insertion and welding mechanism 6 comprises several sets, divided into 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 the tube feeding device and can push the single metal tube 2, which has been fed in, into the through hole 11 on the metal plate 1 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 area between the metal tube 2 and the metal plate 1. Each set of insertion and welding mechanisms 6 on both sides is opposite to the other, so that the insertion device 61 on one side corresponds to the laser welding device 62 on the other side. In this embodiment, the tube feeding device is as follows: Figure 9As 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.

[0053] 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.

[0054] In this embodiment 2, 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.

[0055] 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.

Claims

1. A device for improving the welding quality of structural tube core material plates, characterized in that... include: The substrate (4), located at the welding station, includes a plate body and a tube inserting top tile (41) disposed on the top or bottom surface; it is placed between two metal plates (1) during the welding process to provide positioning and support for the metal plates (1); the tube inserting top tile (41) provides guidance when inserting the metal tube (2) to be welded. The pressure plate mechanism (5) is set on both sides of the substrate (4). During the welding process, it is used to provide clamping force to the metal plates (1) from both sides of the substrate (4), so that the two metal plates (1) are pressed and attached to the substrate (4) from both sides, and the two metal plates (1) are fixed on the substrate.

2. The apparatus for improving structural tube core material panel welding quality according to claim 1, wherein, The substrate (4) is placed upright on the welding station along its length. Its thickness is adapted to the core material thickness of the structural tube core material plate to be welded. The length of the substrate (4) can be adapted to the length of the metal plate to be welded, or longer than the metal plate or shorter than the metal plate. When it is shorter than the metal plate, the metal plate is welded on the substrate (4) through multiple active lateral displacements during the welding process.

3. The apparatus for improving structural tube core material panel welding quality according to claim 1 or 2, characterized by, The insert top tile (41) has several horizontally penetrating support slots (42) that connect both sides of the base plate (4). The number of the support slots (42) and the number of the support slots (42) are as follows: The position and the number of through holes (11) in each horizontal row on the metal plate (1), The positions are matched so that each support slot (42) corresponds to a set of through holes (11) and can connect the same set of through holes (11) of the two metal plates. The width of the support slot (42) is not less than the diameter of the metal tube (2) to be welded.

4. The apparatus for improving structural tube core material panel welding quality according to claim 3, wherein, The cross-section of the support slot (42) is semi-circular, U-shaped, or n-shaped. The width of the support slot (42) is adapted to the diameter of the through hole (11). The groove edge of the support slot (42) can be aligned with the edge of the through hole (11), so that the metal tube (2) can be smoothly inserted into the through hole (11) under the guidance of the groove wall of the support slot (42). The groove width of the support slot (42) allows the welded metal tube (2) to come out of the support slot (42) from the top or bottom.

5. The apparatus for improving structural tube core material panel welding quality according to claim 1, wherein, The substrate has inwardly recessed grooves or through holes on both sides evenly distributed on its surface. The grooves or holes are used to avoid the outward flange at the outer edge of the through hole on the metal plate, so that the surface of the substrate (4) does not contact the outward flange but contacts the surface of the metal plate. The spacing, specifications and number of the grooves or holes are all matched with the specifications, distribution position and number of the outward flange on the metal plate. Alternatively, the substrate may be in the form of a grid, with the size, number, and distribution of the grid matching the specifications, number, and distribution of the outward-facing edges on the metal sheet.

6. The apparatus for improving structural tube core material panel welding quality according to claim 1, wherein, 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 driving mechanism can drive the positioning plugs (43) to retract from the through holes (11).

7. The apparatus for improving structural tube core material panel weld quality of claim 1, wherein, The pressure plate mechanism (5) consists of at least two units, divided into two groups and placed on both sides of the substrate (4). The pressure plate mechanism 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).

8. The apparatus for improving structural tube core material panel welding quality according to claim 7, wherein, The pressing panel (51) is uniformly provided with inwardly recessed grooves or through holes on both sides. The grooves or holes are used to avoid the outward flange at the outer edge of the through hole on the metal plate, so that the surface of the pressing panel (51) does not contact the outward flange but contacts the surface of the metal plate. The spacing, specifications and number of the grooves or holes are all matched with the specifications, distribution position and number of the outward flange on the metal plate. Alternatively, the pressing panel (51) is in the shape of a grid plate, and the size, quantity and distribution of the grid are matched with the specifications, quantity and distribution of the outward flanges on the metal plate.

9. The apparatus for improving structural tube core material panel weld quality of claim 1, wherein, 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).

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