A logistics container welding device and process

Abstract

This invention discloses a welding device and process for logistics containers, relating to the field of container welding technology. The welding device includes: a support frame for supporting corrugated sheets to be welded, with a welding support frame installed in the middle of the support frame, and the mating side of the corrugated sheet located above the welding support frame; a pressing mechanism disposed above the support frame, used to press the mating side of the corrugated sheet flat onto the welding support frame; and a laser welding mechanism disposed on one side of the support frame, used to weld the mating sides of adjacent corrugated sheets. This logistics container welding device, by pressing the mating side of the corrugated sheet flat onto the welding support frame through the pressing mechanism, overcomes the bending and warping of the mating side caused by the handling and transportation of the corrugated sheet, improving the application effect of intelligent welding systems in container corrugated steel sheet welding scenarios.

Description

Technical Field

[0001] This invention belongs to the field of container welding technology, specifically relating to a welding device and process for logistics containers. Background Technology

[0002] Logistics containers, as core equipment in modern logistics transportation, are widely used in sea, land, and multimodal transport. Their dimensions have gradually increased to meet different cargo transportation requirements, with common sizes including 20-foot standard containers, 40-foot standard containers, and 40-foot high cube containers, to increase the volume of goods stored inside. Therefore, the side panels of containers need to be spliced ​​and welded together from multiple pieces before being welded to the cargo frame. The side panels of containers are mostly made of corrugated steel plates, and the industry largely relies on intelligent welding systems and laser welding methods to perform welding operations on the butt joints of the corrugated steel plates.

[0003] Existing laser welding equipment for corrugated steel sheets, as the core hardware of intelligent welding systems, suffers from problems when welding the butt joints of the corrugated steel sheets. Due to the bending and warping of the butt joints, the two corrugated steel sheets to be welded cannot be completely aligned, resulting in uneven edges. This leads to problems such as porosity and incomplete penetration at the laser welding point, affecting the overall structural reliability of the corrugated steel sheet after welding. It also restricts the application effect and promotion value of intelligent welding systems in container corrugated steel sheet welding scenarios. Summary of the Invention

[0004] The purpose of this invention is to provide a simple and reasonably designed welding device and process for logistics containers in order to solve the above-mentioned problems.

[0005] The present invention achieves the above objectives through the following technical solutions: In a first aspect, the present invention provides a welding apparatus for logistics containers, comprising: A support frame for supporting the corrugated sheet to be welded, wherein a welding support frame is installed in the middle of the support frame, and the butt joint side of the corrugated sheet is located above the welding support frame; A pressing mechanism is installed above the support frame. The pressing mechanism includes a pressing plate and a pressing drive. The output end of the pressing drive is connected to the pressing plate. Under the drive of the pressing drive, the pressing plate is used to move down to press the mating side of the corrugated plate flat onto the welding support frame. A laser welding mechanism is installed on one side of the support frame, and the laser welding mechanism is used to weld the mating sides of adjacent corrugated plates.

[0006] As a further optimization of the present invention, the corrugated plate includes a convex portion, a concave portion, and an inclined portion located between the convex portion and the concave portion. The two sides of the inclined portion are integrally connected to the convex portion and the concave portion, respectively. The mating side of the corrugated plate is integrally connected to the inclined portion at the outermost edge. The pressing drive is mounted on the cantilever, which is installed on the load-bearing frame. When the corrugated plate is in the welding position, the pressing plate moves down to abut against the mating side under the drive of the pressing drive.

[0007] As a further optimization of the present invention, a pushing mechanism is also provided on the supporting frame, which is used to push the offset corrugated plate to the welding position.

[0008] As a further optimization of the present invention, the propulsion mechanism includes a first drive wheel, a first drive member, a second drive wheel, and a second drive member. The output end of the first drive member is drivenly connected to the first drive wheel, and the output end of the second drive member is drivenly connected to the second drive wheel. The rotation axis of the first drive wheel and the rotation axis of the second drive wheel are the same, and the rotation axis is the same as the width direction of the support frame. The uppermost position of the first drive wheel is higher than the upper surface of the support frame. In the initial state, the uppermost position of the eccentrically positioned second drive wheel is lower than the upper surface of the support frame. When the eccentrically positioned second drive wheel deflects to the abutment position, the second drive wheel rubs against the inclined part of the corrugated plate, and the corrugated plate is located at the welding position. The propulsion mechanism is provided in multiple sets, which are evenly arranged along the length of the supporting frame, and the distance between adjacent propulsion mechanisms is the same as the distance between the protrusions of the corrugated plate.

[0009] As a further optimization of the present invention, both the first driving member and the second driving member are mounted on the receiving plate. The lower end of the receiving plate is slidably connected to a support plate, and the lower end of the support plate is fixedly connected to the output end of the lifting and shifting driving member. The lifting and shifting driving member is mounted on the supporting frame through a bracket.

[0010] As a further optimization of the present invention, the bearing frame is mounted on a rotating mechanism, which is used to adjust the tilt angle of the bearing frame. The rotating mechanism includes a pivot seat, a rotating drive, and a base. Along the docking direction of the corrugated plate, pivot seats are fixedly mounted at both ends of the bearing frame. The output end of the rotating drive is connected to one of the pivot seats. The rotating drive and the other pivot seat are respectively mounted on the base.

[0011] As a further optimization of the present invention, the laser welding mechanism includes a robotic arm and a laser welding head, wherein the laser welding head is installed at the output end of the robotic arm.

[0012] As a further optimization of the present invention, the supporting frames are arranged in pairs, and the laser welding head is used to sequentially weld the joints of the corrugated plates on the two supporting frames.

[0013] As a further optimization of the present invention, a side baffle is provided between the bearing frame and the robotic arm. The side baffle is fixedly installed at the output end of the side baffle displacement drive component, which is installed on the column. The side baffle is slidably engaged with the column. The side baffle is correspondingly provided with the bearing frame. When the laser welding head performs welding on one side of the corrugated plate, the side baffle on that side is in the initial position, and the side baffle on the other side is in the side baffle position.

[0014] Secondly, the present invention also provides a welding process for logistics containers, applied to the aforementioned logistics container welding apparatus, the welding process comprising the following steps: Place the pair of corrugated sheets to be welded onto the support frame, so that the mating sides of the two corrugated sheets abut against each other. The corrugated sheet is pressed flat onto the welding support frame by a pressing mechanism; The laser welding mechanism first performs local spot welding to fix the flattened and aligned weld seams, and then performs laser welding along the weld seam trajectory.

[0015] The present invention has at least the following beneficial effects: The present invention provides a logistics container welding device and process. The logistics container welding device is equipped with a bearing frame, a pressing mechanism and a laser welding mechanism. The pressing mechanism presses the mating side of the corrugated plate flat onto the welding support frame, overcoming the bending and warping of the mating side caused by the handling and transportation of the corrugated plate. Then, the laser welding mechanism performs laser welding treatment on the mating part of the mating side, ensuring the overall structural reliability of the corrugated plate after welding. Thus, the entire process of "precise positioning - straightening and flattening - intelligent welding" of corrugated plate welding is intelligent, perfectly adapting to the welding process requirements of container corrugated plates. It is a scenario-based application of intelligent welding system in the field of logistics equipment manufacturing. The laser welding mechanism includes a robotic arm and a laser welding head. The output end of the robotic arm is equipped with a laser welding head. Through the intelligent and automated control of the robotic arm, the welding end of the laser welding head can move and weld precisely along the extended trajectory of the abutment part on the docking side. Furthermore, the supporting frame is also equipped with a propulsion mechanism, which includes a first drive wheel, a first drive component, a second drive wheel, and a second drive component. For corrugated plates that are offset, the first drive wheel pushes the corrugated plate from the first offset position to the second offset position, and the second drive wheel continues to push the corrugated plate from the second offset position to the welding position, so as to realize the graded propulsion of the corrugated plate. At the welding position, the corrugated plate is limited on both sides by the second drive wheel on the inner side and the pressure plate on the outer side, ensuring the precise fixation of the corrugated plate at the welding position and ensuring the precise welding of the welding joint by the subsequent laser welding head. In addition, the load-bearing frame is mounted on the rotating mechanism, which includes a pivot seat, a rotating drive component, and a base. The rotating drive component drives the pivot seat to rotate and tilt the load-bearing frame, causing the corrugated sheet to slide down and fall outside the load-bearing frame. Furthermore, the distribution of the second drive wheels symmetrically located on both sides of the welding bracket guides the corrugated sheet as it slides down, ensuring a smooth descent. Attached Figure Description

[0016] Figure 1 This is a schematic diagram of the corrugated sheet structure of the present invention; Figure 2 This is a schematic diagram of the overall structure of the present invention; Figure 3 This is a schematic diagram of the structure of the bearing frame and rotating mechanism of the present invention; Figure 4 This is a partial sectional view of the side structure of the supporting frame, the propulsion mechanism, and the pressing mechanism of the present invention; Figure 5 This is a schematic diagram of the structure of the first drive wheel, the second drive wheel, the first drive member, and the second drive member in the propulsion mechanism of the present invention; Figure 6 This is a partial cross-sectional view of the front of the supporting frame, the propulsion mechanism, and the pressing mechanism of the present invention; Figure 7 This is the invention Figure 6 Enlarged view of point A in the middle; Figure 8 This is a partial structural schematic diagram of the propulsion mechanism when the corrugated plate of the present invention is located at the first offset position; Figure 9 This is a partial structural diagram of the propulsion mechanism when the corrugated plate of the present invention is pushed to the second offset position; Figure 10 This is a partial structural schematic diagram of the pushing mechanism of the present invention when the corrugated plate is pushed to the welding position.

[0017] In the diagram: 1. Corrugated sheet; 11. Recess; 12. Protrusion; 13. Inclined section; 14. Butt joint side; 2. Load-bearing frame; 21. Welded support frame; 3. Propulsion mechanism; 31. First drive wheel; 311. First drive component; 32. Second drive wheel; 321. Second drive component; 33. Receiving plate; 34. Support plate; 35. Lifting and shifting drive component; 36. Bracket; 4. Crimping mechanism; 41. Crimping plate; 42. Crimping drive component; 43. Cantilever; 5. Robotic arm; 51. Laser welding head; 6. Rotating mechanism; 61. Indexing seat; 62. Rotating drive component; 63. Base; 7. Side baffle; 71. Column; 72. Side baffle shifting drive component; 8. Limiting plate. Detailed Implementation

[0018] The present application will now be described in further detail with reference to the accompanying drawings. It should be noted that the following specific embodiments are only used to further illustrate the present application and should not be construed as limiting the scope of protection of the present application. Those skilled in the art can make some non-essential improvements and adjustments to the present application based on the above application content.

[0019] In the description of the embodiments of this application, it should be understood that the terms "upper", "lower", "left", "right", "outer", etc., indicate the orientation or positional relationship based on the orientation or positional relationship shown in the accompanying drawings, or the orientation or positional relationship that the product of this application is usually placed in, or the orientation or positional relationship that is commonly understood by those skilled in the art. They are only used to facilitate the description of this application and simplify the description, and are not intended to indicate or imply that the device or component referred to must have a specific orientation, or be constructed and operated in a specific orientation. Therefore, they should not be construed as limitations on this application.

[0020] In one embodiment, such as Figure 1 , Figure 2 and Figure 3 As shown, the present invention provides a logistics container welding device, comprising: The supporting frame 2 is used to support the corrugated plate 1 to be welded. A welding support frame 21 is installed in the middle of the supporting frame 2, and the butt joint side 14 of the corrugated plate 1 is located above the welding support frame 21. The pressing mechanism 4 is located above the bearing frame 2. The pressing mechanism 4 includes a pressing plate 41 and a pressing drive 42. The output end of the pressing drive 42 is connected to the pressing plate 41. Under the drive of the pressing drive 42, the pressing plate 41 is used to move down to press the mating side 14 of the corrugated plate 1 flat onto the welding support frame 21. A laser welding mechanism is installed on one side of the load-bearing frame 2. The laser welding mechanism is used to weld the mating side 14 of adjacent corrugated plates 1.

[0021] It should be noted that the material of the corrugated sheet 1 is steel plate, which can be used as the top plate, side plate and end plate of the container. The thickness can be selected by the user. For example, the thickness of the corrugated sheet used as the side plate is 1.6mm, and the thickness of the corrugated sheet used as the top plate is 2.0mm. There is no limitation here.

[0022] Among them, such as Figure 1As shown, the corrugated sheet 1 includes a protrusion 12, a recess 11, and an inclined portion 13 located between the protrusion 12 and the recess 11. The two sides of the inclined portion 13 are integrally connected to the protrusion 12 and the recess 11, respectively, thus connecting the protrusion 12 and the recess 11 via the inclined portion 13. The corrugated sheet 1 also has a mating side 14, which has the same shape as the recess 11, except that the width of the mating side 14 is half the width of the recess 11. When two corrugated sheets 1 are welded, the mating sides 14 of the two corrugated sheets 1 abut against each other and are welded using a laser welding mechanism, thereby connecting the two corrugated sheets 1.

[0023] In the above embodiment, by sequentially arranging the two corrugated plates 1... Figure 1 The corrugated plates 1 are placed on the support frame 2 with the concave portion 11 facing down and the convex portion 12 facing up, so that the mating sides 14 of the two corrugated plates 1 are positioned to abut against each other. That is, the two corrugated plates 1 are in the welding position. At this time, the two mating sides 14 are above the welding support frame 21. Then, with the help of the pressing mechanism 4, the mating sides 14 of the corrugated plates 1 are pressed flat on the welding support frame 21 to overcome the bending and warping of the mating sides 14 caused by the handling and transportation of the corrugated plates 1. This ensures that the mating sides 14 of the two corrugated plates 1 to be welded are in a flat state and prevents uneven edges. Then, the laser welding mechanism performs laser welding treatment on the abutting point of the mating sides 14 to ensure the overall structural reliability of the corrugated plates 1 after welding. Through the above method, the entire process of "precise positioning - straightening and flattening - intelligent welding" for welding corrugated plates 1 is realized with intelligence. It is perfectly adapted to the welding process requirements of container corrugated plates 1 and is a scenario-based application of intelligent welding system in the field of logistics equipment manufacturing.

[0024] Continue reading Figure 2 and Figure 4 The pressing drive component 42 is mounted on the cantilever 43, which is installed on the load-bearing frame 2. When the corrugated plate 1 is in the welding position, as... Figure 10 As shown, under the drive of the pressing drive 42, the pressing plate 41 moves down to abut against the mating side 14, thereby pressing the mating side 14 flat onto the welding support frame 21.

[0025] For example, the crimping drive 42 can be a hydraulic telescopic component, an electric telescopic component, or an electrical telescopic component, and no limitation is made here.

[0026] It should be noted that a limiting plate 8 is also provided on the load-bearing frame 2, so that when the corrugated plate 1 is placed on the load-bearing frame 2, the rear of the corrugated plate 1 abuts against the limiting plate 8, so that the mating sides 14 of the two corrugated plates 1 are aligned in the width direction.

[0027] For example, see [link to relevant documentation]. Figure 2The laser welding mechanism includes a robotic arm 5 and a laser welding head 51. The laser welding head 51 is installed at the output end of the robotic arm 5, and its movement trajectory is controlled by the robotic arm 5. It should be noted that, under the intelligent automatic control of the robotic arm 5, the laser welding head 51 can move precisely along the distribution trajectory of the abutment point on the mating side 14 of the corrugated plate 1. The specific movement trajectory can be intelligently set and controlled in advance. In other words, the trajectory control of the robotic arm 5 is a direct realization of the precise trajectory planning of the intelligent welding system. The intelligent automated welding process of the laser welding head 51 eliminates the trajectory deviation problem of traditional manual welding.

[0028] For example, see [link to relevant documentation]. Figure 2 The supporting frame 2 is also equipped with a pushing mechanism 3, which is used to push the offset corrugated plate 1 to the welding position to ensure that the corrugated plate 1 is placed in place. It should be noted that the offset placement of the corrugated plate 1 requires controlling that the mating side 14 of the corrugated plate 1 is not located to the left of the first drive wheel 31 near the welding support frame 21 (within the range of...). Figure 8 (The indicated direction is used as an example).

[0029] For example, see [link to relevant documentation]. Figure 4 and Figure 5 The propulsion mechanism 3 includes a first drive wheel 31, a first drive member 311, a second drive wheel 32, and a second drive member 321. The output end of the first drive member 311 is connected to the first drive wheel 31, and the output end of the second drive member 321 is connected to the second drive wheel 32. The rotation axis of the first drive wheel 31 and the rotation axis of the second drive wheel 32 are aligned, meaning they are collinear. Furthermore, the rotation axis is parallel to the width direction of the supporting frame 2. Figure 3 Taking the orientation shown as an example, the width of the supporting frame 2 refers to the shorter side. The uppermost position of the first drive wheel 31 is higher than the upper surface of the supporting frame 2, and initially, the uppermost position of the eccentrically positioned second drive wheel 32 is lower than the upper surface of the supporting frame 2. Figure 4 The dotted line indicates the position of the upper end face of the supporting frame 2; it should be noted that the eccentrically set second drive wheel 32 means that the rotation axis of the second drive wheel 32 is not collinear with the axis of symmetry of the second drive wheel 32; It should be noted that a pressure sensor is embedded in the side of the first drive wheel 31. (See further...) Figure 7 This illustrates that after the corrugated sheet 1 is placed on the support frame 2 without any offset, the first drive wheel 31 is located directly below the protrusion 12. At this time, the pressure sensor does not generate a pressure signal. Instead, the second drive member 321 drives the second drive wheel 32 to rotate, causing the second drive wheel 32 to deflect towards the welding point. Figure 7In the middle, the second drive wheel 32 located on the left side of the weld rotates counterclockwise, while the second drive wheel 32 located on the right side of the weld rotates clockwise, as shown. Figure 10 As shown, the second drive wheel 32 rubs against the inclined portion 13 of the corrugated plate 1, and, with the help of the outer side of the pressing plate 41, fixes and limits the corrugated plate 1 in the welding position; however, if the corrugated plate 1 is offset and placed on the supporting frame 2, as... Figure 8 As shown, at this time, the recess 11 of the corrugated plate 1 is supported by the first drive wheel 31. The pressure sensor generates a pressure signal, indicating that the corrugated plate 1 is in the first offset position. At this time, the corrugated plate 1 is detached from the bearing frame 2. Then, the first drive wheel 31 can be driven by the first drive member 311, so that the uppermost part of the first drive wheel 31 rotates towards the welding position. Figure 8 Taking the indicated orientation as an example, the first drive wheel 31 corresponding to the corrugated plate 1 on the left rotates clockwise. Driven by the friction between the first drive wheel 31 and the recess 11, the corrugated plate 1 moves to the right. (Continue reading...) Figure 9 The recess 11 abuts against the supporting frame 2, that is, the corrugated plate 1 is pushed to the second offset position. At this time, the first drive wheel 31 no longer pushes the corrugated plate 1. Then, with the help of the second drive member 321, the second drive wheel 32 is driven to rotate counterclockwise. The second drive wheel 32 rubs against the inclined part 13 of the corrugated plate 1, and continues to push the corrugated plate 1 towards the welding point. When the eccentrically set second drive wheel 32 deflects to the abutment position, as... Figure 10 As shown, corrugated plate 1 is located at the welding position, enabling the graded advancement of corrugated plate 1. At this time, with... Figure 10 Taking the corrugated plate 1 on the left side as an example, the second drive wheel 32 limits the left side of the corrugated plate 1 to prevent it from moving to the left, while the corresponding pressing plate 41 limits the right side of the corrugated plate 1 to prevent it from moving to the right. This achieves double-sided limiting of the corrugated plate 1, ensuring that the corrugated plate 1 is accurately fixed in the welding position, and ensuring that the laser welding head 51 can accurately weld the welding point. Among them, propulsion mechanism 3 is equipped with multiple sets, such as Figure 6 As shown, multiple sets of propulsion mechanisms 3 are evenly arranged along the length of the supporting frame 2, and the distance between adjacent propulsion mechanisms 3 is the same as the distance between the protrusions 12 of the corrugated plate 1. That is, one set of propulsion mechanisms 3 corresponds to a component unit of the corrugated plate 1 (including a protrusion 12, a recess 11 and two inclined parts 13), so that the corrugated plate 1 is evenly supported and pushed at multiple points.

[0030] It should be noted that a set of propulsion mechanisms 3 includes multiple first drive wheels 31 and second drive wheels 32, such as... Figure 4As shown, a propulsion mechanism 3 includes three first drive wheels 31 and two second drive wheels 32, with the second drive wheels 32 positioned between adjacent first drive wheels 31, thereby achieving multi-point support and propulsion of the corrugated sheet 1 along the width direction of the supporting frame 2. In other embodiments, the number of first drive wheels 31 and second drive wheels 32 can be selected according to the size requirements of the corrugated sheet 2, and is not limited here.

[0031] For example, see [link to relevant documentation]. Figure 4 The first driving component 311 and the second driving component 321 are both mounted on the receiving plate 33. A support plate 34 is slidably connected to the lower end of the receiving plate 33. The lower end of the support plate 34 is fixedly connected to the output end of the lifting and shifting driving component 35. The lifting and shifting driving component 35 is mounted on the supporting frame 2 via a bracket 36. Due to the different dimensions of the corrugated sheet 1, namely the different heights of the protrusions 12, the depths of the recesses 11, and their lengths, the distribution distance between the first driving wheel 31 and the second driving wheel 32 needs to be adjusted accordingly. Therefore, the support plate 34 is driven downward by the lifting and shifting driving component 35, causing the first driving wheel 31 and the second driving wheel 32 to move downward below the supporting frame 2. At this time, the receiving plate 33 is moved to the left (towards...). Figure 4 Taking the orientation shown as an example, the receiving plate 33 and the first drive wheel 31, first drive component 311, second drive wheel 32 and second drive component 321 on it are removed together, so as to replace the receiving plate 33 and its accessories that are compatible with the corrugated plate 1.

[0032] It should be noted that after the receiving plate 33 is slidably installed onto the support plate 34, a fixing block is needed to fix and limit the receiving plate 33 and the support plate 34 to prevent the receiving plate 33 from sliding on the support plate 34 during operation.

[0033] For example, see [link to relevant documentation]. Figure 2 and Figure 3 The supporting frame 2 is mounted on the rotating mechanism 6, which is used to adjust the tilt angle of the supporting frame 2. The rotating mechanism 6 includes a pivot seat 61, a rotating drive component 62, and a base 63. Along the butt joint direction of the corrugated plate 1, i.e., the length direction of the supporting frame 2, pivot seats 61 are fixedly mounted at both ends of the supporting frame 2. The output end of the rotating drive component 62 is connected to one of the pivot seats 61. The rotating drive component 62 and the other pivot seat 61 are respectively mounted on the base 63. After welding, the pressing plate 41 moves upward to its initial position, and then drives the second drive component 321 to drive the second drive wheel 32 to deflect in the opposite direction, but keeping the uppermost position of the second drive wheel 32 higher than the upper end face of the supporting frame 2. The rotating drive component 62 drives the supporting frame 2 to rotate through the pivot seat 61. Figure 4Taking orientation as an example, the supporting frame 2 rotates counterclockwise, causing it to tilt. At this time, the corrugated sheet 1 slides down and falls outside the supporting frame 2. The second drive wheels 32, symmetrically located on both sides of the welding support frame 21, guide the corrugated sheet 1 as it slides down, ensuring a smooth descent. For example, a conveying mechanism is provided outside the supporting frame 2 to receive and transport the welded corrugated sheet 1.

[0034] It should be noted that the rotary drive component 62 is a drive motor.

[0035] For example, see [link to relevant documentation]. Figure 2 The support frames 2 are arranged in pairs, and the laser welding head 51 is used to weld the corrugated plates 1 on the two support frames 2 in sequence. For example, the two support frames 2 are located on both sides of the robotic arm 5, so that when the robotic arm 5 operates the laser welding head 51 to weld the corrugated plates 1 on one side of the support frame 2, the support frame 2 on the other side performs the feeding action of the corrugated plates 1, so as to improve the welding processing efficiency.

[0036] It should be noted that further reading is required. Figure 2 A side baffle 7 is provided between the support frame 2 and the robotic arm 5. The side baffle 7 is fixedly installed at the output end of the side baffle shifting drive 72, which is installed on the column 71. The side baffle 7 and the column 71 are slidably engaged. The side baffle 7 is correspondingly set to the support frame 2. When the laser welding head 51 performs welding on one side of the corrugated plate 1, the side baffle 7 on that side is in the initial position, that is, the side baffle 7 on that side has not risen. At this time, the robotic arm 5 can smoothly operate the laser welding head 51 to pass over the side baffle 7 to perform welding on one side of the corrugated plate 1. The side baffle 7 on the other side is in the side baffle position, that is, the side baffle 7 on the other side is driven to rise by the side baffle shifting drive 72, so that when one side of the corrugated plate 1 is being welded, the generated high-temperature metal splashes fall onto the other side of the corrugated plate 1 to be welded.

[0037] For example, the side barrier shifting drive 72 can be a hydraulic telescopic component, an electric telescopic component, or an electrical telescopic component, without limitation here.

[0038] It should be noted that, in use, the logistics container welding device involves placing two corrugated plates 1 onto the support frame 2 in sequence. For corrugated plates 1 that are in place, the second drive component 321 is activated to drive the second drive wheel 32 to rotate, so that the second drive wheel 32 abuts against the inclined part 13 of the corrugated plate 1 on the corresponding side. For corrugated plates 1 that are placed off-center, the first drive component 311 is activated to drive the first drive wheel 31 to rotate, pushing the corrugated plate 1 from the first offset position toward the welding position. At this time, the concave part 11 of the corrugated plate 1 abuts against the support frame 2. Then, with the help of the deflection of the second drive wheel 32, the corrugated plate 1 is pushed from the second offset position to the welding position through the abutment of the second drive wheel 32 and the inclined part 13, thus realizing the graded advancement of the corrugated plate 1. Then, the pressing plate 41 is driven to move down by the pressing drive 42 until the pressing plate 41 abuts against the mating side 14 of the corrugated plate 1 and flattens it against the welding support frame 21. Next, the robotic arm 5 is started and the laser welding head 51 is operated to weld the welded joint of the flattened and abutting side 14. Specifically, the welded joint is first fixed by spot welding, and then laser welding is performed along the weld line. For the welded corrugated plate 1, the rotary drive 62 can be used to drive the rotating seat 61 to rotate the bearing frame 2, so that the corrugated plate 1 slides out of the bearing frame 2.

[0039] In another embodiment, the present invention also provides a welding process for logistics containers, applied to the above-mentioned logistics container welding apparatus, the welding process comprising the following steps: Place the pair of corrugated plates 1 to be welded onto the support frame 2, so that the mating sides 14 of the two corrugated plates 1 abut against each other. The pressing mechanism 4 presses the mating side 14 of the corrugated plate 1 flat onto the welding support frame 21; The laser welding mechanism first performs local spot welding to fix the flattened and aligned weld seams, and then performs laser welding along the weld seam trajectory.

[0040] This method flattens the mating side 14 of the corrugated plate 1, preventing it from being warped during welding, ensuring that the welding joints of the mating sides 14 of the two corrugated plates 1 are flush, and guaranteeing welding quality.

[0041] The embodiments described above are merely examples of several implementations of the present invention, and while the descriptions are relatively specific and detailed, they should not be construed as limiting the scope of the present invention. It should be noted that those skilled in the art can make various modifications and improvements without departing from the concept of the present invention, and these modifications and improvements all fall within the scope of protection of the present invention.

Claims

1. A welding device for logistics containers, characterized in that, include: A support frame (2) is used to support the corrugated plate (1) to be welded. A welding support frame (21) is installed in the middle of the support frame (2). The butt joint side (14) of the corrugated plate (1) is located above the welding support frame (21). A pressing mechanism (4) is set above the bearing frame (2). The pressing mechanism (4) includes a pressing plate (41) and a pressing drive (42). The output end of the pressing drive (42) is connected to the pressing plate (41). Under the drive of the pressing drive (42), the pressing plate (41) is used to move down to press the mating side (14) of the corrugated plate (1) flat on the welding support frame (21). A laser welding mechanism is set on one side of the support frame (2), and the laser welding mechanism is used to weld the mating side (14) of the adjacent corrugated plate (1).

2. The logistics container welding device according to claim 1, characterized in that, The corrugated plate (1) includes a protrusion (12), a recess (11) and an inclined portion (13) located between the protrusion (12) and the recess (11). The two sides of the inclined portion (13) are integrally connected to the protrusion (12) and the recess (11) respectively. The mating side (14) of the corrugated plate (1) is integrally connected to the outermost inclined portion (13). The pressing drive (42) is mounted on the cantilever (43), which is mounted on the bearing frame (2). When the corrugated plate (1) is in the welding position, the pressing plate (41) moves down to abut against the mating side (14) under the drive of the pressing drive (42).

3. The logistics container welding device according to claim 2, characterized in that, The supporting frame (2) is also provided with a propulsion mechanism (3), which is used to push the offset corrugated plate (1) to the welding position.

4. The logistics container welding device according to claim 3, characterized in that, The propulsion mechanism (3) includes a first drive wheel (31), a first drive member (311), a second drive wheel (32), and a second drive member (321). The output end of the first drive member (311) is connected to the first drive wheel (31), and the output end of the second drive member (321) is connected to the second drive wheel (32). The rotation axis of the first drive wheel (31) and the rotation axis of the second drive wheel (32) are the same, and the rotation axis is the same as the width direction of the bearing frame (2). The uppermost position of the first drive wheel (31) is higher than the upper surface of the bearing frame (2). In the initial state, the uppermost position of the eccentrically set second drive wheel (32) is lower than the upper surface of the bearing frame (2). When the eccentrically set second drive wheel (32) deflects to the contact position, the second drive wheel (32) rubs against the inclined part (13) of the corrugated plate (1). The corrugated plate (1) is located at the welding position. The propulsion mechanism (3) is provided in multiple sets. Along the length direction of the bearing frame (2), the multiple sets of propulsion mechanisms (3) are evenly arranged, and the distance between adjacent propulsion mechanisms (3) is the same as the distance between the protrusions (12) of the corrugated plate (1).

5. The logistics container welding device according to claim 4, characterized in that, The first driving member (311) and the second driving member (321) are both mounted on the receiving plate (33). The lower end of the receiving plate (33) is slidably connected to the support plate (34). The lower end of the support plate (34) is fixedly connected to the output end of the lifting and shifting driving member (35). The lifting and shifting driving member (35) is mounted on the bearing frame (2) through the bracket (36).

6. The logistics container welding device according to claim 5, characterized in that, The bearing frame (2) is mounted on the rotating mechanism (6), which is used to adjust the tilt angle of the bearing frame (2). The rotating mechanism (6) includes a rotating seat (61), a rotating drive (62), and a base (63). Along the docking direction of the corrugated plate (1), the two ends of the bearing frame (2) are respectively fixedly mounted with rotating seats (61). The output end of the rotating drive (62) is connected to one of the rotating seats (61). The rotating drive (62) and the other rotating seat (61) are respectively mounted on the base (63).

7. The logistics container welding device according to claim 6, characterized in that, The laser welding mechanism includes a robotic arm (5) and a laser welding head (51), the laser welding head (51) being installed at the output end of the robotic arm (5).

8. The logistics container welding device according to claim 7, characterized in that, The load-bearing frames (2) are arranged in pairs, and the laser welding head (51) is used to weld the corrugated plates (1) on the two load-bearing frames (2) in sequence.

9. A logistics container welding device according to claim 8, characterized in that, A side baffle (7) is provided between the bearing frame (2) and the robotic arm (5). The side baffle (7) is fixedly installed at the output end of the side baffle shifting drive (72). The side baffle shifting drive (72) is installed on the column (71). The side baffle (7) is slidably engaged with the column (71). The side baffle (7) is correspondingly provided with the bearing frame (2). When the laser welding head (51) performs welding on one side of the corrugated plate (1), the side baffle (7) on that side is in the initial position, and the side baffle (7) on the other side is in the side baffle position.

10. A welding process for logistics containers, characterized in that, The welding process applied to the logistics container welding apparatus of claim 1 includes the following steps: Place the pair of corrugated plates (1) to be welded onto the support frame (2) so that the mating sides (14) of the two corrugated plates (1) abut against each other; The corrugated plate (1) is pressed flat on the welding support frame (21) by the pressing mechanism (4); The laser welding mechanism first performs local spot welding to fix the flattened and aligned weld seams, and then performs laser welding along the weld seam trajectory.

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