Welding system for long-edge tailor-welding of stainless steel rocket storage tank short cylinder plate

Abstract

The utility model provides a welding system for splicing and welding long edges of stainless steel rocket storage tank short cylinder plates. The welding system comprises a welding rack and a feeding guide component. The welding machine frame comprises an upper guide rail, a machine frame base and a support base body. The upper guide rail and the machine frame base are arranged in a spaced mode and fixedly connected through the support base body. The welding rack is provided with a lower supporting surface, and the lower supporting surface is used for supporting a steel plate; at least one of the opposite end faces of the upper guide rail and the rack base is provided with a welding head capable of moving in the length direction of the upper guide rail and the rack base so as to weld a butt joint of a steel plate to be welded. The feeding guide component comprises at least one feeding guide support used for supporting a steel plate. The upper end face of the feeding guide support is provided with at least one feeding guide universal ball. The feeding guide support is in butt joint with the lower supporting face so that a steel plate can be fed to the lower supporting face. According to the welding system, the complexity and the process difficulty of the welding system can be reduced.

Description

Technical Field

[0001] This utility model relates to the field of rocket propellant tank processing, specifically to a welding system for welding the long sides of short cylindrical plates for stainless steel rocket propellant tanks. Background Technology

[0002] In existing manufacturing processes for large-diameter stainless steel rocket propellant tanks, the typical process flow is: uncoiling stainless steel plates – flattening – cutting – welding longitudinal seams – short rings – stacking and welding circumferential seams – short cylinders. The longitudinal seam welding position for the short rings is vertical, while the circumferential seam welding position for the short cylinders is horizontal. Compared to conventional flat welding, horizontal welding is more difficult and the welding quality is harder to control. Furthermore, the short cylinder circumferential seam welding equipment requires higher precision, stability, and gas protection on the back side of the weld.

[0003] To reduce the manufacturing difficulty of large-diameter stainless steel rocket propellant tanks, it is particularly important to design a welding system for welding the long sides of the short cylindrical plates used in stainless steel rocket propellant tanks. Utility Model Content

[0004] The purpose of this invention is to overcome the shortcomings of the prior art and provide a welding system for welding the long side of stainless steel rocket propellant short cylinder plates.

[0005] This utility model provides a welding system for welding the long side of stainless steel rocket propellant short cylindrical plates, comprising: a welding frame and a loading guide component; the welding frame includes an upper guide rail, a frame base, and a support base; the upper guide rail and the frame base are spaced apart and fixedly connected by the support base; the welding frame is provided with a lower support surface for supporting the steel plate; at least one of the opposite end faces of the upper guide rail and the frame base is provided with a welding head movable along its length direction for welding the butt joint of the steel plates to be welded; the loading guide component includes at least one loading guide bracket for supporting the steel plate; at least one loading guide universal ball is provided on the upper end face of the loading guide bracket; the loading guide bracket is in contact with the lower support surface to load the steel plate onto the lower support surface for welding.

[0006] According to one embodiment of the present invention, the welding frame has two lower support surfaces arranged side by side in the horizontal direction; the two lower support surfaces are spaced apart; the lower guide rail is provided on the end face of the frame base opposite to the upper guide rail; the welding head is provided on the upper guide rail and the lower guide rail respectively, so as to weld the joint from the front and back of the steel plate respectively.

[0007] According to one embodiment of the present invention, at least one frame clamping mechanism is provided on each side of the welding frame along its length to clamp the steel plate butt joint on both sides; the frame clamping mechanism includes a frame clamping drive cylinder and a clamping block, the clamping block is fixedly connected to the telescopic rod of the frame clamping drive cylinder, and the clamping block is driven to move closer to or away from the steel plate by the extension and retraction of the telescopic rod of the frame clamping drive cylinder.

[0008] According to one embodiment of the present invention, the feeding guide bracket is placed on one side of the welding frame; at least one of the opposite end faces of the upper guide rail and the frame base is provided with a rolling-positioning component movable along its length direction; the rolling-positioning component includes a rolling drive cylinder, a rolling wheel, a rolling-positioning drive cylinder, and a rolling-positioning baffle; the rolling wheel is rotatably connected to the telescopic rod of the rolling drive cylinder, and the rolling wheel is driven to move closer to or away from the steel plate by the extension and retraction of the telescopic rod of the rolling drive cylinder, so as to roll the butt joint of the steel plate; the rolling-positioning baffle is fixedly connected to the telescopic rod of the rolling-positioning drive cylinder, and the height of the rolling-positioning baffle is adjusted by the extension and retraction of the telescopic rod of the rolling-positioning drive cylinder; the rolling-positioning baffle is used to control the feeding position of the steel plate at the lower support surface.

[0009] According to one embodiment of the present invention, a feeding side positioning component is further included; the feeding side positioning component includes a feeding side positioning guide rail, a feeding side positioning column base, and a feeding side positioning column; the feeding side positioning column is disposed on the feeding side positioning column base; the feeding side positioning column base is disposed on the feeding side positioning guide rail; the feeding side positioning component is placed beside the feeding guide bracket, and the feeding side positioning guide rail is disposed along the feeding direction from the feeding guide component to the welding frame; the feeding side positioning column base is movable relative to the feeding side positioning guide rail, so that the feeding side positioning column pushes the steel plate from the feeding guide bracket to the lower support surface.

[0010] According to one embodiment of the present invention, a feeding and positioning component is further included; the feeding and positioning component includes a feeding and positioning column, a feeding and positioning drive cylinder, and a feeding and positioning baffle. The feeding and positioning drive cylinder is disposed on the feeding and positioning column, and the feeding and positioning baffle is fixedly connected to the telescopic rod of the feeding and positioning drive cylinder. Along the feeding direction of the feeding guide component, the feeding and positioning component is placed at the end of the feeding guide component. The extension and retraction of the telescopic rod of the feeding and positioning drive cylinder drives the feeding and positioning baffle to move closer to or away from the steel plate, thereby limiting the feeding of the steel plate on the feeding guide component.

[0011] According to one embodiment of the present invention, it further includes a feeding guide component; the feeding guide component includes at least one feeding guide bracket for supporting the steel plate; at least one feeding guide universal ball is provided on the upper end surface of the feeding guide bracket; the feeding guide component is in contact with the lower support surface to feed the steel plate from the lower support surface through the feeding guide bracket and the feeding guide universal ball.

[0012] According to one embodiment of the present invention, a material feeding lateral positioning component is further included; the material feeding lateral positioning component includes a material feeding lateral positioning guide rail, a material feeding lateral positioning column base, a material feeding lateral positioning column, and a material feeding lateral positioning clamping mechanism; the material feeding lateral positioning clamping mechanism is disposed on the material feeding lateral positioning column; the material feeding lateral positioning column is disposed on the material feeding lateral positioning column base; the material feeding lateral positioning column base is disposed on the material feeding lateral positioning guide rail; the material feeding lateral positioning clamping mechanism includes a material feeding lateral positioning clamping base, a material feeding lateral positioning clamping column, a material feeding lateral positioning clamping drive cylinder, and a material feeding lateral positioning clamping pad; the material feeding lateral positioning clamping base is disposed on the material feeding lateral positioning column; the material feeding lateral positioning clamping column ... guide rail; the material feeding lateral positioning clamping drive cylinder, and a material feeding lateral positioning clamping pad; the material feeding lateral positioning clamping base is disposed on the material feeding lateral positioning column; the material feeding lateral positioning clamping drive cylinder, and the material feeding lateral positioning clamping pad are disposed on the material feeding lateral positioning guide rail; the material feeding lateral positioning clamping drive cylinder, and the material feeding lateral positioning clamping drive cylinder are disposed on the material feeding lateral positioning guide rail; the material feeding lateral positioning clamping drive cylinder, and the material feeding lateral positioning clamping drive cylinder are disposed on the material feeding lateral positioning guide rail; the material feeding lateral positioning clamping drive cylinder, and the material feeding lateral positioning clamping drive cylinder are disposed on the material feeding lateral positioning guide rail; the material feeding lateral A side-positioning and clamping base is provided; the side-positioning and clamping drive cylinder is disposed on the side-positioning and clamping column; the side-positioning and clamping pad is fixedly connected to the telescopic rod of the side-positioning and clamping drive cylinder; the side-positioning component is placed beside the side-positioning guide bracket, and the side-positioning guide rail is arranged along the side-positioning direction from the welding frame to the side-positioning guide bracket; the extension of the telescopic rod of the side-positioning and clamping drive cylinder drives the side-positioning and clamping pad to clamp the steel plate to the side-positioning and clamping base; the side-positioning column base is movable relative to the side-positioning guide rail, so that the side-positioning and clamping mechanism can transport the steel plate from the welding frame to the side-positioning guide bracket, thus completing the steel plate unloading.

[0013] According to one embodiment of the present invention, a feeding component is further included; the feeding component is placed beside the feeding guide component; the feeding component includes a feeding frame, a drive roller, and a feeding rotary motor; the drive roller is rotatably arranged relative to the feeding frame and is used to support the steel plate; the drive roller is fixedly connected to the rotation shaft of the feeding rotary motor; the feeding rotary motor is started to drive the drive roller to rotate, so as to transport the steel plate to the feeding guide component.

[0014] According to one embodiment of the present invention, at least one of the opposite end faces of the upper guide rail and the frame base is provided with a welding component; the welding component includes a welding head, a front anti-misalignment roller mechanism, a rear anti-misalignment roller mechanism, and a bypass protection gas mechanism; the front anti-misalignment roller mechanism includes a front anti-misalignment drive cylinder and a front anti-misalignment roller; the front anti-misalignment roller is rotatably connected to the telescopic rod of the front anti-misalignment drive cylinder; along the welding direction, the front anti-misalignment roller mechanism is located on the front side of the welding head; by extending and retracting the telescopic rod of the front anti-misalignment drive cylinder, the front anti-misalignment roller is driven to press or release the weld on the front side of the welding head; the rear anti-misalignment roller mechanism includes a rear anti-misalignment rotary motor, a rear anti-misalignment drive cylinder, and a rear anti-misalignment... Roller; the rear anti-misalignment drive cylinder is fixedly connected to the rotating shaft of the rear anti-misalignment rotary motor; starting the rear anti-misalignment rotary motor drives the rear anti-misalignment drive cylinder to rotate in a vertical plane; the rear anti-misalignment roller is rotatably connected to the telescopic rod of the rear anti-misalignment drive cylinder; along the welding direction, the rear anti-misalignment roller is located on the rear side of the welding head; by extending and retracting the telescopic rod of the rear anti-misalignment drive cylinder, the rear anti-misalignment roller is driven to press or release the weld on the rear side of the welding head; the off-axis protective gas mechanism is located on the side of the welding head; the off-axis protective gas mechanism includes a protective gas inlet and a protective gas outlet, the protective gas inlet is used to guide the protective gas to the protective gas outlet to provide gas protection to the weld.

[0015] The welding system for welding the long side of the short cylindrical plate of stainless steel rocket propellant tank according to this utility model reduces the complexity of the system and the difficulty of the process by changing the welding position of the three-dimensional welding equipment to the simplest flat welding position.

[0016] It should be understood that the above general description and the following specific embodiments are merely exemplary and illustrative, and do not limit the scope of the present invention. Attached Figure Description

[0017] The accompanying drawings are part of the specification of this utility model and illustrate exemplary embodiments of the utility model. The drawings, together with the description in the specification, are used to illustrate the principles of the utility model.

[0018] Figure 1 This is a perspective view of a welding system for welding the long side of a short cylindrical plate for a stainless steel rocket propellant tank, according to an embodiment of the present invention.

[0019] Figure 2 This is a side view of a welding system for welding the long side of a short cylindrical plate for a stainless steel rocket propellant tank, according to another embodiment of the present invention.

[0020] Figure 3This is a rear view of a welding system for welding the long side of a short cylindrical plate for a stainless steel rocket propellant tank, according to an embodiment of the present invention.

[0021] Figure 4 This is a perspective view of a welding component according to an embodiment of the present invention;

[0022] Figure 5 This is a perspective view of a feeding guide component according to an embodiment of the present utility model;

[0023] Figure 6 yes Figure 2 The left view;

[0024] Figure 7 This is a perspective view of a rolling-positioning component according to an embodiment of the present invention;

[0025] Figure 8 This is a perspective view of a feeding lateral positioning component according to an embodiment of the present invention;

[0026] Figure 9 This is a perspective view of a feeding and positioning component according to an embodiment of the present invention;

[0027] Figure 10 yes Figure 1 The left view;

[0028] Figure 11 This is a top view of a welding system for welding the long side of a short cylindrical plate for a stainless steel rocket propellant tank, according to one embodiment of the present invention.

[0029] Figure 12 This is a perspective view of a material feeding guide component according to an embodiment of the present utility model;

[0030] Figure 13 This is a perspective view of a material feeding lateral positioning component according to an embodiment of the present utility model;

[0031] Figure 14 yes Figure 13 Enlarged view of A in the middle;

[0032] Figure 15 This is a perspective view of the feeding component according to an embodiment of the present invention;

[0033] Figure 16 This is a perspective view of the parietal protection gas structure according to an embodiment of the present invention;

[0034] Figure 17 This is a perspective view of the rear anti-misalignment roller mechanism according to an embodiment of the present invention.

[0035] Explanation of reference numerals in the attached figures:

[0036] 1-Feeding component; 2-Welding frame; 3-Feeding side positioning component; 4-Discharging side positioning component; 5-Feeding positioning component; 6-Feeding guide component; 7-Discharging guide component; 8-Rolling-positioning component; 9-Welding component; 1-1 Feeding frame; 1-2 Drive roller; 2-1 Frame base; 2-2 Support base; 2-3 Lower guide rail; 2-4 Upper guide rail; 2-5 Lower support surface; 2-6 Frame clamping mechanism; 2 -7 Rectangular grid frame; 3-1 Loading side positioning guide rail; 3-2 Loading side positioning column base; 3-3 Loading side positioning column; 4-1 Unloading side positioning guide rail; 4-2 Unloading side positioning column base; 4-3 Unloading side positioning column; 4-4 Unloading side positioning clamping mechanism; 5-1 Feeding positioning column; 5-2 Feeding positioning drive cylinder; 5-3 Feeding positioning baffle; 6-1 Loading guide bracket; 6-2 Loading guide... 7-1 Universal ball bearing; 7-2 Unloading guide bracket; 7-2 Unloading guide universal ball bearing; 8-Crushing drive cylinder; 8-2 Crushing roller; 8-3 Crushing-positioning drive cylinder; 8-4 Crushing-positioning baffle; 9-1 Welding head; 9-2 Front anti-misalignment roller mechanism; 9-3 Side shaft protection gas mechanism; 9-4 Rear anti-misalignment roller mechanism; 4-1-1 Unloading side positioning and clamping base; 4-1-2 Unloading side positioning and clamping column; 4-1- 3. Material feeding side positioning and clamping drive cylinder; 4-1-4 Material feeding side positioning and clamping pad; 9-3-1 Light blocking plate; 9-3-2 Front protective air outlet; 9-3-3 Front protective air inlet; 9-3-4 Rear protective air inlet; 9-3-5 Air knife; 9-3-6 Locking flange plate; 9-3-7 Protective air column; 9-4-1 Rear anti-misalignment rotary motor; 9-4-2 Rear anti-misalignment drive cylinder; 9-4-3 Rear anti-misalignment roller. Detailed Implementation

[0037] The features and exemplary embodiments of various aspects of this utility model will be described in detail below. To make the objectives, technical solutions, and advantages of this utility model clearer, the following detailed description is provided in conjunction with the accompanying drawings and specific embodiments. It should be understood that the specific embodiments described herein are only configured to explain this utility model and to exemplarily illustrate the principles of this utility model, and are not configured to limit this utility model. In addition, the structural components in the drawings are not necessarily drawn to scale. For example, the dimensions of some structural components or regions in the drawings may be enlarged for other structural components or regions to aid in the understanding of the embodiments of this utility model.

[0038] The directional terms used in the following description refer to the directions shown in the figures and are not intended to limit the specific structure of the embodiments of this utility model. In the description of this utility model, it should be noted that, unless otherwise stated, the terms "installation," "connection," and "joining" should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral connection; they can refer to a direct connection or an indirect connection through an intermediate medium. Those skilled in the art can understand the specific meaning of the above terms in this utility model according to the specific circumstances.

[0039] Furthermore, the terms "comprising," "including," "having," or any other variations thereof are intended to cover non-exclusive inclusion, such that a structure or component that includes a list of elements includes not only those elements but also other structural elements that are not expressly listed or inherent to the structure or component. Without further limitations, an element defined by the phrase "comprising..." does not exclude the presence of other identical elements in the article or apparatus that includes the element.

[0040] Spatial relation terms such as "below," "under," "under," "low," "above," "on," and "high" are used for descriptive convenience to explain the positioning of one element relative to a second element, indicating that these terms are intended to cover different orientations of the device, in addition to those different from those shown in the figure. Furthermore, phrases such as "one element on / below another element" can indicate that two elements are in direct contact, or that there are other elements between the two elements. In addition, terms such as "first" and "second" are also used to describe individual elements, areas, parts, etc., without specifically indicating order or sequence, and should not be considered restrictive. Similar terms are used throughout the description to represent similar elements.

[0041] In the following description of this utility model, the terms "rocket," "launch vehicle," "spacecraft," "space launch vehicle," or "missile" may be used in certain scenarios for ease of description only, and their connotations are not limited to the specific terms used. Generally, the rockets of this utility model include space launch vehicles (e.g., launch vehicles) used to carry satellites, spacecraft, or other probes, as well as various missiles, rockets, and other weapons used to carry military payloads, and similar products capable of delivering payloads into the air. Those skilled in the art, when interpreting the above specific terms, should not limit the rocket to only launch vehicles or missiles based on the specific terms used in the description, thereby narrowing the scope of protection of this utility model.

[0042] For those skilled in the art, this invention can be implemented without some of these specific details. The following description of the embodiments is merely intended to provide a better understanding of the invention by illustrating examples.

[0043] Figure 1 This is a perspective view of a welding system for welding the long side of a short cylindrical plate for a stainless steel rocket propellant tank, according to an embodiment of the present invention. Figure 2 This is a side view of a welding system for welding the long side of a short cylindrical plate for a stainless steel rocket propellant tank, according to another embodiment of the present invention. Figure 3 This is a rear view of a welding system for welding the long side of a short cylindrical plate for a stainless steel rocket propellant tank, according to an embodiment of the present invention. Figure 4 This is a perspective view of a welding component according to an embodiment of the present invention; Figure 5 This is a perspective view of a feeding guide component according to an embodiment of the present utility model; Figure 6 yes Figure 2 The left view; Figure 7 This is a perspective view of a rolling-positioning component according to an embodiment of the present invention; Figure 8 This is a perspective view of a feeding lateral positioning component according to an embodiment of the present invention;

[0044] Figure 9 This is a perspective view of a feeding and positioning component according to an embodiment of the present invention; Figure 10 yes Figure 1 The left view; Figure 11 This is a top view of a welding system for welding the long side of a short cylindrical plate for a stainless steel rocket propellant tank, according to one embodiment of the present invention. Figure 12 This is a perspective view of a material feeding guide component according to an embodiment of the present utility model; Figure 13 This is a perspective view of a material feeding lateral positioning component according to an embodiment of the present utility model; Figure 14 yes Figure 13 Enlarged view of A in the middle; Figure 15 This is a perspective view of the feeding component according to an embodiment of the present invention; Figure 16 This is a perspective view of the parietal protection gas structure according to an embodiment of the present invention; Figure 17 This is a perspective view of the rear anti-misalignment roller mechanism according to an embodiment of the present invention.

[0045] like Figure 1-5As shown, this utility model provides a welding system for welding the long side of a short cylindrical plate for a stainless steel rocket propellant tank, comprising: a welding frame 2 and a feeding guide component 6. The welding frame 2 includes an upper guide rail 2-4, a frame base 2-1, and a support base 2-2. The upper guide rail 2-4 and the frame base 2-1 are spaced apart and fixedly connected by the support base 2-2. The welding frame 2 is provided with a lower support surface 2-5 for supporting the steel plate. At least one of the opposite end faces of the upper guide rail 2-4 and the frame base 2-1 is provided with a welding head 9-1 movable along its length direction for welding the butt joint of the steel plates to be welded. The feeding guide component 6 includes at least one feeding guide bracket 6-1 for supporting the steel plate. At least one feeding guide universal ball bearing 6-2 is provided on the upper end face of the feeding guide bracket 6-1. The feeding guide bracket 6-1 is connected to the lower support surface 2-5 to feed the steel plate onto the lower support surface 2-5 for welding.

[0046] The welding system provided in this embodiment transforms the welding position of the three-dimensional welding equipment into the simplest flat welding position. It enables the butt welding (e.g., laser welding) of the long sides of short cylindrical longitudinal seam welded plates, reducing equipment complexity and manufacturing difficulty, lowering equipment requirements and process complexity, improving weld formation stability, and enhancing weld mechanical properties. This welding system exhibits high welding stability, enabling the butt welding of long sides of large-format steel plates, and facilitating back-side gas shielding. For example, this welding system can weld cold-rolled hardened 301 stainless steel plates with lengths of 1000–7000 mm, widths of 300–1500 mm, and thicknesses of 0.4–3.0 mm into large-format steel plates with a maximum size of 7000 mm in length and 6000 mm in width.

[0047] For example, at least one universal ball bearing 6-2 is provided on the upper end face of the feeding guide bracket 6-1, which can reduce the friction between the steel plate and the feeding guide component 6 when the steel plate is moving, and minimize the scratches on the steel plate during the transportation process. The welding frame 2 is the main structure of the welding station of this welding system. For example, the frame base 2-1 can be a cast steel plate structure or a cast cement structure with a steel frame. For example, the support base 2-2 is a C-shaped frame. Multiple (e.g., 5) C-shaped frames can be arranged at intervals along the length direction of the upper guide rail 2-4. The opening of the C-shaped frame faces the upper guide rail 2-4, and the upper guide rail 2-4 is located on the upper end face of the opposite end face of the opening of the C-shaped frame. The support base 2-2 can be set on the frame base 2-1. The distance between the opposite end faces of the opening of the C-shaped frame can be 500-1500mm. The support base 2-2 can be the main load-bearing body of the welding station and can be made of cast steel. For example, the feeding guide bracket 6-1 is an L-shaped bracket. The L-shaped bracket is inverted on the frame base 2-1 and can be connected to the frame base 2-1 by welding or screws. For example, multiple (e.g., 13) feeding guide brackets 6-1 can be arranged at intervals along the length of the upper guide rail 2-4. For example, at least 4 sets of feeding guide universal ball bearings 6-2 can be arranged along the length of the feeding guide bracket 6-1. For example, the welding head 9-1 can be a laser welding head for laser welding of steel plates. For example, the welding head 9-1 can perform laser welding on the long side butt joint of a long steel plate.

[0048] like Figure 2 and 6 As shown, according to one embodiment of the present invention, the welding frame 2 has two lower support surfaces 2-5 arranged side by side in the horizontal direction. The two lower support surfaces 2-5 are spaced apart. A lower guide rail 2-3 is provided on the end face of the frame base 2-1 opposite to the upper guide rail 2-4. Welding heads 9-1 are respectively provided on the upper guide rail 2-4 and the lower guide rail 2-3 to weld the joint from the front and back of the steel plate respectively.

[0049] In this embodiment, the upper guide rail 2-4 and the lower guide rail 2-3 are each equipped with a welding head 9-1, enabling double-sided welding (e.g., laser welding) of the steel plate butt joints (e.g., long-side straight seams). For example, the welding frame 2 may also include a column, to which the upper guide rail 2-4 and the lower guide rail 2-3 can be fixedly connected to enhance structural stability. For example, the lower support surface 2-5 can be a triangular steel body, i.e., a cast steel part with a triangular cross-section. The edge of the lower support surface 2-5 that contacts the steel plate can be chamfered. The distance between two parallel lower support surfaces 2-5 can be 20–60 mm.

[0050] like Figure 6As shown, according to one embodiment of the present invention, at least one frame clamping mechanism 2-6 is provided on each side of the welding frame 2 along its length to clamp the steel plate butt joint on both sides. The frame clamping mechanism 2-6 includes a frame clamping drive cylinder and a clamping block. The clamping block is fixedly connected to the telescopic rod of the frame clamping drive cylinder. By extending or retracting the telescopic rod of the frame clamping drive cylinder, the clamping block is moved closer to or away from the steel plate.

[0051] In this embodiment, for example, the frame clamping drive cylinder can be a pneumatic cylinder. The frame clamping mechanism 2-6 can also be an airbag clamping mechanism. For example, the distance between the frame clamping mechanisms 2-6 on both sides of the welding frame 2 can be 20-60mm. The opposite end faces of the frame clamping mechanisms 2-6 on both sides of the welding frame 2 are aligned with the opposite end faces of their corresponding lower support surfaces 2-5.

[0052] like Figure 1 and 7 As shown, according to one embodiment of the present invention, the feeding guide bracket 6-1 is placed on one side of the welding frame 2. At least one of the opposite end faces of the upper guide rail 2-4 and the frame base 2-1 is provided with a rolling-positioning component 8 movable along its length. The rolling-positioning component 8 includes a rolling drive cylinder 8-1, a rolling wheel 8-2, a rolling-positioning drive cylinder 8-3, and a rolling-positioning baffle 8-4. The rolling wheel 8-2 is rotatably connected to the telescopic rod of the rolling drive cylinder 8-1. By extending or retracting the telescopic rod of the rolling drive cylinder 8-1, the rolling wheel 8-2 is driven to move closer to or away from the steel plate to roll the butt joint of the steel plate. The rolling-positioning baffle 8-4 is fixedly connected to the telescopic rod of the rolling-positioning drive cylinder 8-3. By extending or retracting the telescopic rod of the rolling-positioning drive cylinder 8-3, the height of the rolling-positioning baffle 8-4 is adjusted. The rolling-positioning baffle 8-4 is used to control the feeding position of the steel plate at the lower support surface 2-5.

[0053] In this embodiment, the centerline of the rolling roller 8-2 along the length of the lower guide rail 2-3 is horizontally offset from the centerline of the baffle 8-4 along the length of the lower guide rail 2-3. For example, the centerline of the rolling roller 8-2 along the length of the lower guide rail 2-3 and the centerline of the gap between the two lower support surfaces 2-5 along the length of the lower guide rail 2-3 are in the same vertical plane, while the centerline of the baffle 8-4 along the length of the lower guide rail 2-3 and the centerline of the gap between the two lower support surfaces 2-5 along the length of the lower guide rail 2-3 are not in the same vertical plane.

[0054] This welding system controls the loading position of the steel plate at the lower support surface 2-5 in the direction of transporting the steel plate from the loading guide bracket 6-1 to the welding frame 2 via a rolling-positioning baffle 8-4. The rolling-positioning component 8 can level and shape the weld, eliminate weld excess, prevent welding deformation, and improve weld strength. For example, rolling-positioning components 8, movable along their length, are respectively provided on the opposite end faces of the upper guide rail 2-4 and the frame base 2-1 (e.g., the lower guide rail 2-3) to jointly position the lateral position of the steel plate. For example, the rolling drive cylinder 8-1 can be an electric cylinder. The rolling-positioning drive cylinder 8-3 can be a pneumatic cylinder. The rolling drive cylinder 8-1 can be locked to the lower guide rail 2-3 with screws. The thickness of the rolling roller 8-2 can be 10–50 mm. The rolling-positioning drive cylinder 8-3 and the rolling drive cylinder 8-1 can be distributed along the length of the upper guide rail 2-4 or the lower guide rail 2-3. The compaction-positioning drive cylinder 8-3 can be located beside the compaction drive cylinder 8-1. The compaction-positioning component 8 can be used to laterally compact the steel plate on the unloading side of the welding frame 2. Figure 6 Positioning in the S1 direction.

[0055] For example, the steps for welding the first steel plate to be welded and the second steel plate to be welded can be as follows:

[0056] S01: Along the length of the lower guide rail 2-3 and the upper guide rail 2-4, adjust the position of the corresponding rolling-positioning component 8 until the two rolling-positioning components 8 are close to the two ends of the lower guide rail 2-3;

[0057] S02: The telescopic rod of the compaction drive cylinder 8-1 retracts, causing the compaction wheel 8-2 to move away from the lower support surface 2-5; the telescopic rod of the compaction-positioning drive cylinder 8-3 retracts, causing the compaction-positioning baffle 8-4 to move away from the lower support surface 2-5.

[0058] S03: The feeding guide bracket 6-1 transports the first steel plate to be welded to the welding frame 2 until the edge of the first steel plate to be welded reaches the lower support surface 2-5 away from the feeding guide component 6;

[0059] S04: The telescopic rod of the rolling-positioning drive cylinder 8-3 set on the lower guide rail 2-3 and the upper guide rail 2-4 extends, so that the rolling-positioning baffle 8-4 is located between the two lower support surfaces 2-5 on the side of the lower guide rail 2-3 in the width direction.

[0060] S05: Push the first steel plate to be welded back (i.e. push the first steel plate to be welded in the direction of the upward material guide component 6, which can be done manually) so that the edge of the first steel plate to be welded is against the side of the rolling-positioning baffle 8-4 in the width direction of the lower guide rail 2-3.

[0061] S06: The telescopic rod of the rolling-positioning drive cylinder 8-3 retracts, causing the rolling-positioning baffle 8-4 to move away from the lower support surface 2-5. The feeding guide bracket 6-1 transports the second steel plate to be welded to the welding frame 2, so that the edge to be welded of the second steel plate to be welded is spliced ​​with the edge to be welded of the first steel plate to be welded, and then welding is performed.

[0062] S07: The telescopic rod of the rolling drive cylinder 8-1 extends, bringing the rolling wheel 8-2 close to the weld and rolling the weld.

[0063] like Figure 1 and 8 As shown, according to one embodiment of the present invention, in addition to the welding frame 2 and the feeding guide component 6, the welding system also includes a feeding lateral positioning component 3. The feeding lateral positioning component 3 includes a feeding lateral positioning guide rail 3-1, a feeding lateral positioning column base 3-2, and a feeding lateral positioning column 3-3. The feeding lateral positioning column 3-3 is disposed on the feeding lateral positioning column base 3-2. The feeding lateral positioning column base 3-2 is disposed on the feeding lateral positioning guide rail 3-1. The feeding lateral positioning component 3 is placed beside the feeding guide bracket 6-1, and the feeding lateral positioning guide rail 3-1 is arranged along the feeding direction from the feeding guide component 6 to the welding frame 2. The feeding lateral positioning column base 3-2 is movable relative to the feeding lateral positioning guide rail 3-1, so that the feeding lateral positioning column 3-3 pushes the steel plate from the feeding guide bracket 6-1 to the lower support surface 2-5.

[0064] The welding system provided in this embodiment guides, advances, and positions the steel plate during loading using the loading side positioning component 3. For example, the welding system can be equipped with multiple (e.g., four sets) loading side positioning components 3. The loading side positioning components 3 and the loading guide bracket 6-1 can be arranged alternately. For example, the loading side positioning guide rail 3-1 can be a linear guide rail used to control the linear movement of the loading side positioning column base 3-2 and the loading side positioning column 3-3. For example, the loading side positioning column 3-3 can be a cylindrical steel bar, with its side surface contacting the steel plate. The loading side positioning column base 3-2 moves along the loading side positioning guide rail 3-1, causing the loading side positioning column 3-3 to advance the steel plate towards the downward loading direction.

[0065] like Figure 1 and 9As shown, according to one embodiment of the present invention, in addition to the welding frame 2 and the feeding guide component 6, the welding system also includes a feeding positioning component 5. The feeding positioning component 5 includes a feeding positioning column 5-1, a feeding positioning drive cylinder 5-2, and a feeding positioning baffle 5-3. The feeding positioning drive cylinder 5-2 is disposed on the feeding positioning column 5-1, and the feeding positioning baffle 5-3 is fixedly connected to the telescopic rod of the feeding positioning drive cylinder 5-2. For example, when a steel plate is fed to the feeding guide component 6 along the length direction of the upper guide rail 2-4, the feeding positioning component 5 is placed at the end of the feeding guide component 6 along the feeding direction. The extension and retraction of the telescopic rod of the feeding positioning drive cylinder 5-2 causes the feeding positioning baffle 5-3 to move closer to or away from the steel plate, thereby limiting the feeding of the steel plate to the feeding guide component 6.

[0066] In this embodiment, the feeding and positioning component 5 can perform longitudinal positioning of the steel plate. For example, at least one (e.g., six sets) feeding and positioning components 5 can be provided on both sides of the welding frame 2 in the width direction. For example, the feeding and positioning drive cylinder 5-2 can be an electric cylinder. For example, the feeding and positioning baffle 5-3 can be a 50*50mm steel plate. The vertical thickness of the feeding and positioning baffle 5-3 can be equal to or greater than the thickness of the steel plate to be welded.

[0067] like Figure 1 , 3 As shown in Figures 10-12, according to one embodiment of the present invention, in addition to the welding frame 2 and the feeding guide component 6, the welding system also includes a discharging guide component 7. The discharging guide component 7 includes at least one discharging guide bracket 7-1, which supports the steel plate. At least one discharging guide universal ball bearing 7-2 is provided on the upper end face of the discharging guide bracket 7-1 (i.e., the end face used to support the steel plate). The discharging guide component 7 abuts against the lower support surface 2-5 to discharge the steel plate from the lower support surface 2-5 via the discharging guide bracket 7-1 and the discharging guide universal ball bearing 7-2.

[0068] In this embodiment, for example, multiple (e.g., 7 or 9 sets) of unloading guide brackets 7-1 can be provided along the length direction of the lower support surface 2-5. For example, at least one unloading guide universal ball bearing 7-2 is provided on the upper end surface of the unloading guide bracket 7-1 (e.g., 13 sets can also be provided), which can reduce the friction between the steel plate and the unloading guide component 7 when the steel plate is traveling, and minimize the scratches on the steel plate during the transportation process.

[0069] like Figure 3 , 10As shown in Figures 11, 13, and 14, according to one embodiment of the present invention, in addition to the welding frame 2, the loading guide component 6, and the unloading guide component 7, the welding system also includes an unloading lateral positioning component 4. The unloading lateral positioning component 4 includes an unloading lateral positioning guide rail 4-1, an unloading lateral positioning column base 4-2, an unloading lateral positioning column 4-3, and an unloading lateral positioning clamping mechanism 4-4. The unloading lateral positioning clamping mechanism 4-4 is disposed on the unloading lateral positioning column 4-3. The unloading lateral positioning column 4-3 is disposed on the unloading lateral positioning column base 4-2. The unloading lateral positioning column base 4-2 is disposed on the unloading lateral positioning guide rail 4-1.

[0070] like Figure 13 , 14 As shown, the material feeding side positioning and clamping mechanism 4-4 includes a material feeding side positioning and clamping base 4-4-1, a material feeding side positioning and clamping column 4-4-2, a material feeding side positioning and clamping drive cylinder 4-4-3, and a material feeding side positioning and clamping pad 4-4-4. The material feeding side positioning and clamping base 4-4-1 is mounted on the material feeding side positioning column 4-3. The material feeding side positioning and clamping column 4-4-2 is mounted on the material feeding side positioning and clamping base 4-4-1. The material feeding side positioning and clamping drive cylinder 4-4-3 is mounted on the material feeding side positioning and clamping column 4-4-2. The material feeding side positioning and clamping pad 4-4-4 is fixedly connected to the telescopic rod of the material feeding side positioning and clamping drive cylinder 4-4-3.

[0071] The unloading side positioning component 4 is placed beside the unloading guide bracket 7-1, and the unloading side positioning guide rail 4-1 is set along the unloading direction from the welding frame 2 to the unloading guide bracket 7-1. The extension rod of the unloading side positioning clamping drive cylinder 4-4-3 extends, driving the unloading side positioning clamping pad 4-4-4 to clamp the steel plate to the unloading side positioning clamping base 4-4-1. The unloading side positioning column base 4-2 is movable relative to the unloading side positioning guide rail 4-1, so that the unloading side positioning clamping mechanism 4-4 transports the steel plate from the welding frame 2 to the unloading guide bracket 7-1, completing the unloading of the steel plate (i.e., pulling the steel plate from the welding frame 2).

[0072] In this embodiment, the material feeding side positioning and clamping mechanism 4-4 extends and retracts via the telescopic rod of the material feeding side positioning and clamping drive cylinder 4-4-3, causing the material feeding side positioning and clamping pad 4-4-4 to clamp or release the steel plate. The material feeding side positioning guide rail 4-1 controls the linear movement of the material feeding side positioning column base 4-2 and the material feeding side positioning column 4-3, so that the material feeding side positioning and clamping mechanism 4-4 drives the steel plate to move and position along the length direction of the material feeding side positioning guide rail 4-1. For example, the welding system can be equipped with multiple (e.g., 5 sets) material feeding side positioning components 4. The material feeding side positioning components 4 can be alternately arranged with the material feeding guide components 7. For example, the material feeding side positioning guide rail 4-1 can be a linear guide rail. For example, the material feeding side positioning and clamping base 4-4-1 can be a steel plate, with a chamfer of 10-30° at the material feeding and unloading points. For example, the material feeding side positioning and clamping drive cylinder 4-4-3 can be a cylinder. The unloading side positioning and clamping drive cylinder 4-4-3 can be installed on the side of the unloading side positioning and clamping column 4-4-2, with the telescopic rod of the unloading side positioning and clamping drive cylinder 4-4-3 facing the unloading side positioning and clamping base 4-4-1. For example, the unloading side positioning and clamping pad 4-4-4 can be a rubber pad.

[0073] like Figure 2 and 6 As shown, according to one embodiment of the present invention, the welding system further includes a rectangular grid frame 2-7. A material guide component 7 and a material lateral positioning component 4 are mounted on the rectangular grid frame 2-7.

[0074] In this embodiment, for example, the rectangular grid frame 2-7 can be welded from square steel. The rectangular grid frame 2-7 can be installed on the frame base 2-1.

[0075] like Figure 1 , 3 As shown in Figures 11 and 15, according to one embodiment of the present invention, in addition to the welding frame 2 and the feeding guide component 6, the welding system also includes a feeding component 1. The feeding component 1 is placed beside the feeding guide component 6. The feeding component 1 includes a feeding frame 1-1, a drive roller 1-2, and a feeding rotary motor. The drive roller 1-2 is rotatably disposed relative to the feeding frame 1-1 and is used to support the steel plate. The drive roller 1-2 is fixedly connected to the rotation shaft of the feeding rotary motor. When the feeding rotary motor is started, the drive roller 1-2 is driven to rotate to transport the steel plate to the feeding guide component 6.

[0076] In this embodiment, the feeding component 1 provides a feeding driving force for the steel plate. When the feeding rotary motor is started, the feeding component 1 pushes the steel plate onto the feeding guide component 6, and then pushes it (which can be done manually) to the feeding positioning component 5, completing the pre-feeding process. For example, the feeding guide component 1 can be placed on the side of the feeding guide component 6 away from the feeding positioning component 5. For example, the feeding component 1 can be equipped with multiple sets (e.g., 5 sets) of drive rollers 1-2 and feeding rotary motors, with each drive roller 1-2 and feeding rotary motor corresponding to the other. For example, the pushing direction of the feeding component 1 towards the steel plate can form a certain angle (e.g., 2-10°) with the length direction of the steel plate weld (i.e., the long side of the steel plate), facilitating position adjustment in subsequent feeding processes.

[0077] like Figure 3 , 4 As shown in Figures 16 and 17, according to one embodiment of the present invention, at least one of the opposing end faces of the upper guide rail 2-4 and the frame base 2-1 is provided with a welding component 9. The welding component 9 includes a welding head 9-1, a front anti-misalignment roller mechanism 9-2, a rear anti-misalignment roller mechanism 9-4, and a bypass protection gas mechanism 9-3. The front anti-misalignment roller mechanism 9-2 includes a front anti-misalignment drive cylinder and a front anti-misalignment roller. The front anti-misalignment roller is rotatably connected to the telescopic rod of the front anti-misalignment drive cylinder. Along the welding direction, the front anti-misalignment roller mechanism 9-2 is located on the front side of the welding head 9-1. Through the extension and retraction of the telescopic rod of the front anti-misalignment drive cylinder, the front anti-misalignment roller is driven to press or release the weld seam on the front side of the welding head 9-1.

[0078] See Figure 17 The rear anti-misalignment roller mechanism 9-4 includes a rear anti-misalignment rotary motor 9-4-1, a rear anti-misalignment drive cylinder 9-4-2, and a rear anti-misalignment roller 9-4-3. The rear anti-misalignment drive cylinder 9-4-2 is fixedly connected to the rotation shaft of the rear anti-misalignment rotary motor 9-4-1. Starting the rear anti-misalignment rotary motor 9-4-1 drives the rear anti-misalignment drive cylinder 9-4-2 to rotate in a vertical plane. The rear anti-misalignment roller 9-4-3 is rotatably connected to the telescopic rod of the rear anti-misalignment drive cylinder 9-4-2. Along the welding direction, the rear anti-misalignment roller 9-4-3 is located behind the welding head 9-1. Through the extension and retraction of the telescopic rod of the rear anti-misalignment drive cylinder 9-4-2, the rear anti-misalignment roller 9-4-3 is driven to press or release the weld seam behind the welding head 9-1.

[0079] like Figure 4 As shown, the off-axis shielding gas mechanism 9-3 is located beside the weld joint 9-1. The off-axis shielding gas mechanism 9-3 includes a shielding gas inlet and a shielding gas outlet. The shielding gas inlet is used to guide the shielding gas to the shielding gas outlet to provide gas protection to the weld.

[0080] The welding system provided in this embodiment can eliminate misalignment of the steel plate before welding and during spot welding through the front anti-misalignment roller mechanism 9-2 and the rear anti-misalignment roller mechanism 9-4. For example, welding components 9 are respectively provided on the opposite end faces of the upper guide rail 2-4 and the frame base 2-1 (e.g., the lower guide rail 2-3) to perform double-sided welding on both sides of the steel plate butt joint straight seam. For example, the upper guide rail 2-4 and the lower guide rail 2-3 can both be common linear tracks. The rolling-positioning component 8 and the welding component 9 can use a common sliding track and different linear gear tracks so that the upper guide rail 2-4 and the lower guide rail 2-3 control the rolling-positioning component 8 and the welding component 9 to perform linear movement.

[0081] For example, welding component 9 can be equipped with an X-axis slider, a Y-axis slider, and a Z-axis slider to form a three-axis linkage system for welding head 9-1. For example, the X-axis slider can be mounted on the upper guide rail 2-4 or the lower guide rail 2-3. For example, the front anti-misalignment roller mechanism 9-2 can be locked to the front of welding head 9-1 with screws, and the rear anti-misalignment roller mechanism 9-4 can be locked to the rear of welding head 9-1 with screws (e.g., the Z-axis slider). For example, the front anti-misalignment drive cylinder can be an electric cylinder. For example, the width of the front and rear anti-misalignment rollers 9-4-3 can be 10–40 mm. For example, the rear anti-misalignment roller 9-4-3 can be a double roller structure. For example, the rear anti-misalignment rotary motor 9-4-1 can be locked to the Z-axis slider with screws.

[0082] like Figure 16 As shown, according to one embodiment of the present invention, the off-axis protective gas mechanism 9-3 includes a light-blocking plate 9-3-1, a front protective gas outlet 9-3-2, a front protective gas inlet 9-3-3, a rear protective gas inlet 9-3-4, an air knife 9-3-5, a locking flange plate 9-3-6, and a protective gas column 9-3-7. The protective gas column 9-3-7 is locked to the welding head 9-1 by the locking flange plate 9-3-6. The front protective gas inlet 9-3-3 and the rear protective gas inlet 9-3-4 are provided on the side of the protective gas column 9-3-7. The rear protective gas outlet (not shown in the figure) is provided on the lower end face of the protective gas column 9-3-7. At the front end in the welding direction, the lower end of the protective gas column 9-3-7 is provided with an inclined surface, and the front protective gas outlet 9-3-2 is provided at the inclined surface. The front shielding gas inlet 9-3-3 and the rear shielding gas inlet 9-3-4 are used to connect to the shielding gas pipeline. The front shielding gas inlet 9-3-3 is connected to the front shielding gas outlet 9-3-2, and the rear shielding gas inlet 9-3-4 is connected to the rear shielding gas outlet to guide the shielding gas to the weld. A light-blocking plate 9-3-1 is installed at the lower end of the shielding gas column 9-3-7 to block light and prevent the welding element on this side from being burned during welding of the welding part 9. An air knife 9-3-5 is installed in the middle of the shielding gas column 9-3-7, and air is supplied to the air knife 9-3-5 to protect the lens of the welding head 9-1.

[0083] In this embodiment, the off-axis shielding gas mechanism 9-3 serves as the gas protection mechanism for the front and back of the welding component 9, providing gas protection for the weld. For example, the locking flange plate 9-3-6 can be located on the top of the shielding gas column 9-3-7. For example, the side of the shielding gas column 9-3-7 can have at least one front shielding gas inlet 9-3-3 and a rear shielding gas inlet 9-3-4. For example, the side of the shielding gas column 9-3-7 can have one front shielding gas inlet 9-3-3 and three rear shielding gas inlets 9-3-4. For example, the front shielding gas inlet 9-3-3 and the rear shielding gas inlet 9-3-4 can be standard gas pipe adapters. For example, the front shielding gas outlet 9-3-2 can be a round hole with an inner diameter of 5–10 mm. For example, the rear shielding gas outlet can be a rectangular slot with a width of 4–10 mm, a length of 50–70 mm, and a depth of 100–200 mm. For example, the light-blocking plate 9-3-1 can be 40-50mm wide, 60-80mm long, and 5-30mm thick.

[0084] In this utility model, the aforementioned components, parts or parts can be connected and fixed by means of screws, riveting, welding or other methods, and this utility model does not impose specific limitations on this. For example, the rolling-positioning baffle 8-4 is fixed to the end of the telescopic rod of the rolling-positioning drive cylinder 8-3 by welding; the feeding guide universal ball bearing 6-2 is locked to the feeding guide bracket 6-1 by screws; the feeding guide bracket 6-1 can be locked to the lower support surface 2-5 by welding or screws; the feeding side positioning column base 3-2 is locked to the feeding side positioning guide rail 3-1 by screws; the feeding positioning column 5-1 is fixed to the frame base 2-1 by welding or screws; the feeding positioning drive cylinder 5-2 is installed at the top of the feeding positioning column 5-1 by screws; the feeding positioning baffle 5-3 is connected to the end of the telescopic rod of the feeding positioning drive cylinder 5-2 by welding; the unloading guide bracket 7-1 is connected to the frame base 2-1 and the lower support surface 2-5 by welding or screws; the unloading guide universal ball bearing 7-2 is locked to the unloading guide bracket 7-1 by screws.

[0085] For example, the material feeding side positioning column base 4-2 is locked to the slider of the material feeding side positioning guide rail 4-1 by screws; the material feeding side positioning clamping base 4-4-1 is fixed to the material feeding side positioning clamping column 4-4-2 by welding; the material feeding side positioning clamping drive cylinder 4-4-3 is locked to the material feeding side positioning clamping column 4-4-2 by welding or screws; the material feeding side positioning clamping pad 4-4-4 is glued to the end of the telescopic rod of the material feeding side positioning clamping drive cylinder 4-4-3; the rear anti-misalignment roller 9-4-3 is fixed to the end of the telescopic rod of the rear anti-misalignment drive cylinder 9-4-2 by welding, etc.

[0086] The above embodiments of this utility model can be combined with each other and have corresponding technical effects.

[0087] The above are merely preferred embodiments of the present utility model and are not intended to limit the present utility model. Any modifications, equivalent substitutions, improvements, etc., made within the spirit and principles of the present utility model shall be included within the protection scope of the present utility model.

Claims

1. A welding system for welding the long sides of short cylindrical plates for stainless steel rocket propellant tanks, characterized in that, include: Welding frame and feeding guide components; The welding frame includes an upper guide rail, a frame base, and a support base; the upper guide rail and the frame base are spaced apart and fixedly connected by the support base; the welding frame is provided with a lower support surface for supporting the steel plate; at least one of the opposite end faces of the upper guide rail and the frame base is provided with a welding head that is movable along its length direction for welding the butt joint of the steel plate to be welded; The feeding guide component includes at least one feeding guide bracket for supporting the steel plate; at least one feeding guide universal ball is provided on the upper end surface of the feeding guide bracket; the feeding guide bracket is in contact with the lower support surface to feed the steel plate onto the lower support surface for welding.

2. The welding system according to claim 1, characterized in that, The welding frame has two lower support surfaces arranged side by side in the horizontal direction; the two lower support surfaces are spaced apart; the lower guide rail is provided on the end face of the frame base opposite to the upper guide rail; the welding head is provided on the upper guide rail and the lower guide rail respectively, so as to weld the joint from the front and back of the steel plate respectively.

3. The welding system according to claim 1, characterized in that, Each side of the welding frame is provided with at least one frame clamping mechanism along its length to clamp the steel plate joint on both sides. The frame clamping mechanism includes a frame clamping drive cylinder and a clamping block. The clamping block is fixedly connected to the telescopic rod of the frame clamping drive cylinder. The clamping block moves closer to or away from the steel plate by extending or retracting the telescopic rod of the frame clamping drive cylinder.

4. The welding system according to claim 1, characterized in that, The feeding guide bracket is used to be placed on one side of the welding frame; at least one of the opposite end faces of the upper guide rail and the frame base is provided with a rolling-positioning component that is movable along its length direction; The rolling-positioning component includes a rolling drive cylinder, a rolling wheel, a rolling-positioning drive cylinder, and a rolling-positioning baffle. The rolling wheel is rotatably connected to the telescopic rod of the rolling drive cylinder. By extending or retracting the telescopic rod, the rolling wheel moves closer to or away from the steel plate to roll the butt joint of the steel plate. The rolling-positioning baffle is fixedly connected to the telescopic rod of the rolling-positioning drive cylinder. By extending or retracting the telescopic rod, the height of the rolling-positioning baffle is adjusted. The rolling-positioning baffle is used to control the loading position of the steel plate at the lower support surface.

5. The welding system according to claim 1, characterized in that, It also includes a feeding side positioning component; the feeding side positioning component includes a feeding side positioning guide rail, a feeding side positioning column base, and a feeding side positioning column; the feeding side positioning column is disposed on the feeding side positioning column base; the feeding side positioning column base is disposed on the feeding side positioning guide rail; the feeding side positioning component is placed beside the feeding guide bracket, and the feeding side positioning guide rail is disposed along the feeding direction from the feeding guide component to the welding frame; the feeding side positioning column base is movable relative to the feeding side positioning guide rail, so that the feeding side positioning column pushes the steel plate from the feeding guide bracket to the lower support surface.

6. The welding system according to claim 1, characterized in that, It also includes a feeding and positioning component; the feeding and positioning component includes a feeding and positioning column, a feeding and positioning drive cylinder and a feeding and positioning baffle, the feeding and positioning drive cylinder is disposed on the feeding and positioning column, and the feeding and positioning baffle is fixedly connected to the telescopic rod of the feeding and positioning drive cylinder; Along the feeding direction of the feeding guide component, the feeding positioning component is placed at the end of the feeding guide component; the extension and retraction of the telescopic rod of the feeding positioning drive cylinder drives the feeding positioning baffle to move closer to or away from the steel plate, so as to limit the feeding of the steel plate on the feeding guide component.

7. The welding system according to claim 1, characterized in that, It also includes a material feeding guide component; the material feeding guide component includes at least one material feeding guide bracket, the material feeding guide bracket is used to support the steel plate; at least one material feeding guide universal ball is provided on the upper end surface of the material feeding guide bracket; the material feeding guide component is in contact with the lower support surface so as to feed the steel plate from the lower support surface through the material feeding guide bracket and the material feeding guide universal ball.

8. The welding system according to claim 7, characterized in that, It also includes a material unloading side positioning component; the material unloading side positioning component includes a material unloading side positioning guide rail, a material unloading side positioning column base, a material unloading side positioning column, and a material unloading side positioning clamping mechanism; the material unloading side positioning clamping mechanism is disposed on the material unloading side positioning column; the material unloading side positioning column is disposed on the material unloading side positioning column base; the material unloading side positioning column base is disposed on the material unloading side positioning guide rail; The material feeding lateral positioning and clamping mechanism includes a material feeding lateral positioning and clamping base, a material feeding lateral positioning and clamping column, a material feeding lateral positioning and clamping drive cylinder, and a material feeding lateral positioning and clamping pad; the material feeding lateral positioning and clamping base is disposed on the material feeding lateral positioning and clamping column; the material feeding lateral positioning and clamping column is disposed on the material feeding lateral positioning and clamping base; the material feeding lateral positioning and clamping drive cylinder is disposed on the material feeding lateral positioning and clamping column; the material feeding lateral positioning and clamping pad is fixedly connected to the telescopic rod of the material feeding lateral positioning and clamping drive cylinder; The unloading lateral positioning component is placed beside the unloading guide bracket, and the unloading lateral positioning guide rail is set along the unloading direction from the welding frame to the unloading guide bracket; the extension rod of the unloading lateral positioning clamping drive cylinder extends, driving the unloading lateral positioning clamping pad to clamp the steel plate to the unloading lateral positioning clamping base; the unloading lateral positioning column base is movable relative to the unloading lateral positioning guide rail, so that the unloading lateral positioning clamping mechanism transports the steel plate from the welding frame to the unloading guide bracket, completing the unloading of the steel plate.

9. The welding system according to claim 1, characterized in that, It also includes a feeding component; the feeding component is placed beside the feeding guide component; the feeding component includes a feeding frame, a drive roller and a feeding rotary motor; the drive roller is rotatably arranged relative to the feeding frame and is used to support the steel plate; the drive roller is fixedly connected to the rotation shaft of the feeding rotary motor; the feeding rotary motor is started to drive the drive roller to rotate, so as to transport the steel plate to the feeding guide component.

10. The welding system according to claim 1, characterized in that, At least one of the opposite end faces of the upper guide rail and the frame base is provided with a welding component; the welding component includes the welding head, the front anti-misalignment roller mechanism, the rear anti-misalignment roller mechanism, and the off-axis protection gas mechanism; The front anti-misalignment roller mechanism includes a front anti-misalignment drive cylinder and a front anti-misalignment roller; the front anti-misalignment roller is rotatably connected to the telescopic rod of the front anti-misalignment drive cylinder; along the welding direction, the front anti-misalignment roller mechanism is located on the front side of the welding head; by extending and retracting the telescopic rod of the front anti-misalignment drive cylinder, the front anti-misalignment roller is driven to press or release the weld on the front side of the welding head; The rear anti-misalignment roller mechanism includes a rear anti-misalignment rotary motor, a rear anti-misalignment drive cylinder, and a rear anti-misalignment roller. The rear anti-misalignment drive cylinder is fixedly connected to the rotation shaft of the rear anti-misalignment rotary motor. Starting the rear anti-misalignment rotary motor drives the rear anti-misalignment drive cylinder to rotate in a vertical plane. The rear anti-misalignment roller is rotatably connected to the telescopic rod of the rear anti-misalignment drive cylinder. Along the welding direction, the rear anti-misalignment roller is located on the rear side of the welding head. Through the extension and retraction of the telescopic rod of the rear anti-misalignment drive cylinder, the rear anti-misalignment roller is driven to press or release the weld seam on the rear side of the welding head. The off-axis shielding gas mechanism is located on the side of the weld joint; the off-axis shielding gas mechanism includes a shielding gas inlet and a shielding gas outlet, the shielding gas inlet is used to guide the shielding gas to the shielding gas outlet to provide gas protection to the weld.

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