Welding system applied to outer stringer of stainless steel rocket tank cylinder section

Abstract

The utility model provides a welding system applied to a stainless steel rocket tank cylinder section outer stringer. The welding system comprises an inner supporting component and an outer pressing component. The inner supporting component comprises a circle supporting component which is used for conducting circle supporting on the cylinder section from the interior of the cylinder section. The external pressing part is used for pressing the stringer to the outer side face of the barrel section from the outside of the barrel section so as to weld the barrel section and the stringer. According to the welding system, stringers can be welded to the outer side faces of the barrel sections, and it can be ensured that the welding positions of the barrel sections or short barrels do not deviate in the whole welding process.

Description

Technical Field

[0001] This utility model relates to the field of launch vehicle tanks, specifically to a welding system applied to the outer girder of a stainless steel rocket tank section. Background Technology

[0002] In the existing manufacturing process of large-diameter stainless steel rocket propellant tanks, the stringers of the stainless steel short cylinder are mainly used to provide axial support. To reduce wind resistance, the stringers are usually arranged on the inner side of the short cylinder. Typically, the stringers can be welded to both the inner and outer sides of the short cylinder. When the stringers are welded to the inner side of the short cylinder, it is very easy to generate welding spatter that is difficult to clean; when the stringers are arranged on the outer side of the short cylinder, there is no need for strict cleaning of welding spatter.

[0003] In order to arrange the stringers on the outer side of the short cylinder, it is particularly important to design a welding system for the outer stringers of the stainless steel rocket tank section. Utility Model Content

[0004] The purpose of this invention is to overcome the shortcomings of the prior art and provide a welding system for the outer girder of stainless steel rocket tank sections.

[0005] This utility model provides a welding system for the outer stringers of a stainless steel rocket propellant tank section, comprising: an inner support component and an outer pressure component; the inner support component includes a rounding component, which is used to round the section from the inside; the outer pressure component is used to press the stringers to the outer side of the section from the outside, so as to weld the section and the stringers.

[0006] According to one embodiment of the present invention, the supporting circular component includes an inner supporting circular component; the inner supporting circular component includes a disc base, and the disc base is provided with a plurality of inner supporting mechanisms along its circumferential direction; the inner supporting mechanism includes an inner supporting drive cylinder and an inner supporting plate arranged along the radial direction of the cylindrical section, and the inner supporting plate is connected to the telescopic rod of the inner supporting drive cylinder; by extending and retracting the telescopic rod of the inner supporting drive cylinder, the inner supporting plate is driven to move closer to or away from the cylindrical section.

[0007] According to one embodiment of the present invention, a plurality of inner supporting circular components are provided along the axial direction of the cylindrical section; a plurality of inner supporting circular columns are provided between two adjacent inner supporting circular components to support the inner supporting circular components.

[0008] According to one embodiment of the present invention, the supporting round component further includes a rotating mechanism, and the inner supporting round component is disposed on the rotating mechanism; the rotating mechanism includes a rotating mechanism base and a driven gear, the driven gear being rotatably disposed relative to the rotating mechanism base to drive the inner supporting round component and the cylindrical section to rotate.

[0009] According to one embodiment of the present invention, the inner support component further includes an inner support column component, which is used to be placed inside the cylindrical section; the inner support column component includes an inner support column and a column inner support mechanism, the column inner support mechanism being disposed on the side of the inner support column; the column inner support mechanism includes an inner support column drive cylinder and a column inner support plate disposed along the radial direction of the cylindrical section, the column inner support plate being connected to the telescopic rod of the inner support column drive cylinder; by extending and retracting the telescopic rod of the inner support column drive cylinder, the column inner support plate is driven toward or away from the inner side of the cylindrical section, so that the column inner support plate supports or releases the inner side of the cylindrical section.

[0010] According to one embodiment of the present invention, the external pressure component includes an external pressure column and a stringer positioning component; the stringer positioning component is disposed on the side of the external pressure column; the stringer positioning component includes an external pressure driving cylinder and an external pressure block disposed along the radial direction of the cylinder segment, the external pressure block being connected to the telescopic rod of the external pressure driving cylinder; by extending and retracting the telescopic rod of the external pressure driving cylinder, the external pressure block is driven toward or away from the stringer on the outer side of the cylinder segment, so as to press the stringer to the outer side of the cylinder segment or release the stringer.

[0011] According to one embodiment of the present invention, the stringer positioning component further includes a stringer end pressing drive cylinder and an inner positioning block arranged along the axial direction of the cylinder segment. The inner positioning block is connected to the telescopic rod of the stringer end pressing drive cylinder. By extending and retracting the telescopic rod of the stringer end pressing drive cylinder, the inner positioning block is driven toward or away from the end of the stringer, so as to press or release the stringer from the end in the length direction of the stringer.

[0012] According to one embodiment of the present invention, a welding component is further included; the welding component includes a welding mechanism; the welding mechanism includes a Z-axis slider, a Y-axis slider, and a welding head; along the axial direction of the cylinder segment, the Z-axis slider is slidably disposed with respect to the side of the external pressure column; along the radial direction of the cylinder segment, the Y-axis slider is slidably disposed with respect to the Z-axis slider, the welding head is disposed on the Y-axis slider, and the Z-axis slider can drive the Y-axis slider to move along the axial direction of the cylinder segment, so that the welding head moves along the axial or radial direction of the cylinder segment.

[0013] According to one embodiment of the present invention, the welding component further includes a welding clamping mechanism; the welding clamping mechanism includes a clamping connecting plate, an X-shaped connecting rod, and stringer clamping blocks; the clamping connecting plate is fixedly connected to the Y-axis slider, the X-shaped connecting rod is rotatably disposed on the clamping connecting plate, and the two first ends of the X-shaped connecting rod are respectively connected to one of the stringer clamping blocks; by moving the two second ends of the X-shaped connecting rod closer or further away from each other, the two first ends of the X-shaped connecting rod drive the two stringer clamping blocks closer or further away from each other, so as to clamp or release the stringer from opposite sides of the stringer.

[0014] According to one embodiment of the present invention, the welding clamping mechanism further includes two connecting rod drive cylinders; the two connecting rod drive cylinders are rotatably connected to the clamping connecting plate; the telescopic rods of the two connecting rod drive cylinders are respectively rotatably connected to the two second ends of the X-shaped connecting rod; by extending and retracting the telescopic rods of the connecting rod drive cylinders, the two second ends of the X-shaped connecting rod are driven to move closer or further apart from each other.

[0015] According to the present invention, a welding system for the outer stringers of stainless steel rocket propellant tank sections is used. The stringers are rounded and fixed inside the section by a rounding component, and the stringers are pressed to the outer side of the section by an external pressing component. This system can weld the stringers to the outer side of the section and ensure that the welding position of the section or short cylinder does not shift during the entire welding process.

[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 the outer girder of a stainless steel rocket propellant tank section, according to an embodiment of the present invention.

[0019] Figure 2 This is a perspective view of a welding system for the outer girder of a stainless steel rocket propellant tank section, according to an embodiment of the present invention.

[0020] Figure 3 yes Figure 2 Top view;

[0021] Figure 4 This is a perspective view of the inner support component according to an embodiment of the present utility model;

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

[0023] Figure 6 This is a perspective view of the inner supporting circular component according to an embodiment of the present utility model;

[0024] Figure 7 This is a perspective view of the internal support mechanism according to an embodiment of the present utility model;

[0025] Figure 8 This is a perspective view of the inner supporting circular component according to an embodiment of the present utility model;

[0026] Figure 9 This is a perspective view of a rotating mechanism according to an embodiment of the present invention;

[0027] Figure 10 This is a perspective view of an internal support column component according to an embodiment of the present utility model;

[0028] Figure 11 This is a perspective view of the external pressure component according to an embodiment of the present invention;

[0029] Figure 12 This is a perspective view of the upper stringer positioning component according to an embodiment of the present utility model;

[0030] Figure 13 This is a perspective view of an embodiment of the elevator of this utility model;

[0031] Figure 14 This is a perspective view of the inner positioning block according to an embodiment of the present invention;

[0032] Figure 15 This is a top view of the inner positioning block according to an embodiment of the present invention;

[0033] Figure 16 This is a front view of the inner positioning block according to an embodiment of the present invention;

[0034] Figure 17 yes Figure 16 Cross-sectional view along the AA direction;

[0035] Figure 18 This is a bottom view of the inner positioning block according to an embodiment of the present invention;

[0036] Figure 19 This is a perspective view of the outer clamping block according to an embodiment of the present invention;

[0037] Figure 20 This is a top view of the outer clamping block according to an embodiment of the present invention;

[0038] Figure 21 yes Figure 20 Cross-sectional view along the BB direction;

[0039] Figure 22 This is a front view of the outer clamping block according to an embodiment of the present invention;

[0040] Figure 23 This is a perspective view of a welding component according to an embodiment of the present invention;

[0041] Figure 24 This is a perspective view of a welding mechanism according to an embodiment of the present invention;

[0042] Figure 25 This is a perspective view of a welding clamping mechanism according to an embodiment of the present invention;

[0043] Figure 26 This is a perspective view of a stringer clamping block according to an embodiment of the present utility model;

[0044] Figure 27 This is a front view of a stringer clamping block according to an embodiment of the present invention;

[0045] Figure 28 This is a left view of a stringer clamping block according to an embodiment of the present invention;

[0046] Figure 29 yes Figure 27 Cross-sectional view along the CC direction.

[0047] Explanation of reference numerals in the attached figures:

[0048] 1. External pressure component; 2. Internal support component; 1-1 External pressure base; 1-2 External pressure column; 1-3 Lifting ladder; 1-4 Upper stringer positioning component; 1-5 Lower stringer positioning component; 1-6 Welding component; 1-7 External pressure linear guide; 1-3-1 Lifting guide; 1-3-2 Escalator; 1-4-1 Internal positioning block; 1-4-2 External clamping block; 1-4-3 Stringer end clamping drive cylinder; 1-4-4 Clamping connecting block; 1-4-5 External clamping drive cylinder; 1-4-1-1 Rounded chamfer; 1-4-1-2 Internal positioning locking bolt hole; 1-4-1-3 Internal positioning trapezoidal contoured inner wall; 1-4-1-4 Internal positioning quick insertion hole ; 1-4-1-5 Inner positioning wedge groove; 1-4-2-1 External pressure locking bolt hole; 1-4-2-2 External pressure quick insertion hole; 1-4-2-3 External pressure wedge groove; 1-4-2-4 External pressure contour trapezoidal inner wall; 1-6-1 Welding clamping mechanism; 1-6-2 Welding mechanism; 1-6-1-2 Clamping connecting plate; 1-6-1-3 Connecting rod drive cylinder; 1-6-1-4 X-type connecting rod; 1-6-1-6 Truss clamping block; 1-6-2-1 Z-axis slider; 1-6-2-2 Y-axis slider; 1-6-2-3 Welding connecting block; 1-6-2-4 Welding head; 1-6-1-6-1 Air nozzle inlet; 1 -6-1-6-2 Welding clearance groove; 1-6-1-6-3 Protective gas outlet; 1-6-1-6-4 Protective gas cavity; 2-1 Supporting round component; 2-2 Inner supporting column component; 2-1-1 Inner supporting base; 2-1-2 Base column; 2-1-3 Rotating mechanism; 2-1-4 Inner supporting round component; 2-1-5 Inner supporting round component; 2-1-6 Inner supporting round column; 2-1-7 Inner supporting round component; 2-1-3-1 Rotating mechanism base; 2-1-3-2 Driven gear; 2-1-3-3 Gear drive motor; 2-1-3-4 Drive gear; 2-1-3-5 Boss; 2-1-4-1 Disc base; 2-1-4-2 Copper support plate; 2-1-4-3 Internal support mechanism; 2-1-4-4 Column mounting base; 2-1-4-3-1 Internal support circular linear guide rail; 2-1-4-3-2 Internal support drive cylinder; 2-1-4-3-3 Internal support plate; 2-1-4-3-4 Support plate; 2-1-4-3-5 Adapter block; 2-1-5-4 Guide block; 2-2-1 Internal support column base; 2-2-2 Internal support column linear guide rail; 2-2-3 Internal support column; 2-2-4 Column internal support mechanism; 2-2-3-1 Column internal support base; 2-2-3-2 Internal support column drive cylinder; 2-1-4-3-3 Column internal support plate. Detailed Implementation

[0049] 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.

[0050] 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.

[0051] 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.

[0052] 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.

[0053] 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 in this utility model include space launch vehicles or 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 one of launch vehicles or missiles based on the specific terms used in the description, thereby narrowing the scope of protection of this utility model.

[0054] 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.

[0055] Figure 1 This is a perspective view of a welding system for the outer girder of a stainless steel rocket propellant tank section, according to an embodiment of the present invention. Figure 2 This is a perspective view of a welding system for the outer girder of a stainless steel rocket propellant tank section, according to an embodiment of the present invention. Figure 3 yes Figure 2 Top view;

[0056] Figure 4 This is a perspective view of the inner support component according to an embodiment of the present utility model; Figure 5 This is a perspective view of the inner support component according to an embodiment of the present utility model; Figure 6 This is a perspective view of the inner supporting circular component according to an embodiment of the present utility model; Figure 7 This is a perspective view of the internal support mechanism according to an embodiment of the present utility model; Figure 8 This is a perspective view of the inner supporting circular component according to an embodiment of the present utility model; Figure 9 This is a perspective view of a rotating mechanism according to an embodiment of the present invention; Figure 10 This is a perspective view of an internal support column component according to an embodiment of the present utility model; Figure 11 This is a perspective view of the external pressure component according to an embodiment of the present invention; Figure 12 This is a perspective view of the upper stringer positioning component according to an embodiment of the present utility model; Figure 13 This is a perspective view of an embodiment of the elevator of this utility model;

[0057] Figure 14 This is a perspective view of the inner positioning block according to an embodiment of the present invention; Figure 15 This is a top view of the inner positioning block according to an embodiment of the present invention; Figure 16This is a front view of the inner positioning block according to an embodiment of the present invention; Figure 17 yes Figure 16 Cross-sectional view along the AA direction; Figure 18 This is a bottom view of the inner positioning block according to an embodiment of the present invention; Figure 19 This is a perspective view of the outer clamping block according to an embodiment of the present invention; Figure 20 This is a top view of the outer clamping block according to an embodiment of the present invention; Figure 21 yes Figure 20 Cross-sectional view along the BB direction; Figure 22 This is a front view of the outer clamping block according to an embodiment of the present invention; Figure 23 This is a perspective view of a welding component according to an embodiment of the present invention; Figure 24 This is a perspective view of a welding mechanism according to an embodiment of the present invention; Figure 25 This is a perspective view of a welding clamping mechanism according to an embodiment of the present invention;

[0058] Figure 26 This is a perspective view of a stringer clamping block according to an embodiment of the present utility model; Figure 27 This is a front view of a stringer clamping block according to an embodiment of the present invention; Figure 28 This is a left view of a stringer clamping block according to an embodiment of the present invention; Figure 29 yes Figure 27 Cross-sectional view along the CC direction.

[0059] like Figure 1-4 As shown, this utility model provides a welding system for the outer stringers of a stainless steel rocket propellant tank section, comprising: an inner support component 2 and an outer pressure component 1. The inner support component 2 includes a rounding component 2-1, which is used to round the section from the inside. The outer pressure component 1 is used to press the stringers to the outer surface of the section from the outside for welding the section and the stringers.

[0060] In this embodiment, for example, the rounding component 2-1 is used to contact the end face of the cylinder segment, which is a profile adapted to the inner surface of the cylinder segment. The rounding component 2-1 of this welding system is used to round and fix the cylinder segment inside, while the external pressure component 1 is used to press the stringers to the outer surface of the cylinder segment from the outside, thereby achieving the welding of the stringers to the outer surface of the cylinder segment and ensuring that the welding position of the cylinder segment or short cylinder does not shift throughout the welding process. This welding system can guarantee the shape of the cylinder segment and does not require strict cleaning of welding spatter dust.

[0061] like Figure 5-7As shown, according to one embodiment of the present invention, the supporting circular component 2-1 includes an inner supporting circular component. The inner supporting circular component includes a disc base 2-1-4-1, and the disc base 2-1-4-1 is provided with a plurality of inner supporting mechanisms 2-1-4-3 along its circumferential direction. The inner supporting mechanism 2-1-4-3 includes an inner supporting drive cylinder 2-1-4-3-2 and an inner supporting plate 2-1-4-3-3 arranged along the radial direction of the cylindrical section. The inner supporting plate 2-1-4-3-3 is connected to the telescopic rod of the inner supporting drive cylinder 2-1-4-3-2. By extending and retracting the telescopic rod of the inner supporting drive cylinder 2-1-4-3-2, the inner supporting plate 2-1-4-3-3 is driven to move closer to or away from the cylindrical section.

[0062] In this embodiment, the inner support mechanism 2-1-4-3 is used to support the cylindrical section. The inner support plate 2-1-4-3-3 is used to contact the arc-shaped end face of the cylindrical section, which has the same inner diameter as the inner surface of the cylindrical section, to better fit the inner surface of the cylindrical section. The inner support plate 2-1-4-3-3 can be made of brass or copper. For example, as Figure 6 As shown, the disc base 2-1-4-1 has 12 internal support mechanisms 2-1-4-3 arranged along its circumference. The internal support drive cylinder 2-1-4-3-2 can be an electric cylinder, hydraulic cylinder, etc. This welding system allows for controllable shape tolerances of the short cylinder.

[0063] For example, when the inner support plate 2-1-4-3-3 is located in the position of supporting the short cylinder, multiple inner support plates 2-1-4-3-3 can be spliced ​​together to form a complete circle that matches the inner side of the cylinder section, so as to control the shape accuracy of the short cylinder.

[0064] For example, the internal support mechanism includes multiple first internal support mechanisms and multiple second internal support mechanisms, with the first and second internal support mechanisms spaced apart. When the internal support mechanism is supporting the short cylinder in a rounded state, the internal support plates of the first and second internal support mechanisms are spliced ​​together to form a complete circle that matches the inner surface of the short cylinder. When the internal support mechanism is not needed to support the short cylinder in a rounded state, the telescopic rod of the internal support drive cylinder of the second internal support mechanism retracts first, and then the telescopic rod of the internal support drive cylinder of the first internal support mechanism retracts, and the degree of retraction (or retraction distance) of the telescopic rod of the internal support drive cylinder of the second internal support mechanism is greater than the degree of retraction (or retraction distance) of the telescopic rod of the internal support drive cylinder of the first internal support mechanism.

[0065] like Figure 6 As shown, according to one embodiment of the present invention, a copper support plate 2-1-4-2 is provided on the outer circumferential side of the disc base 2-1-4-1.

[0066] In this embodiment, for example, the copper support plate 2-1-4-2 can be a long strip of copper plate, wrapped around the outer circumferential side of the disc base 2-1-4-1. The copper support plate 2-1-4-2 and the disc base 2-1-4-1 can be locked together by screws or other means to ensure a tight fit.

[0067] like Figure 7 As shown, according to one embodiment of the present invention, in addition to the inner support drive cylinder 2-1-4-3-2 and the inner support plate 2-1-4-3-3, the inner support mechanism 2-1-4-3 also includes an inner support circular linear guide rail 2-1-4-3-1 and a transition block 2-1-4-3-5. The inner support drive cylinder 2-1-4-3-2 is disposed on the inner support circular linear guide rail 2-1-4-3-1, and the inner support plate 2-1-4-3-3 is connected to the telescopic rod of the inner support drive cylinder 2-1-4-3-2 through the transition block 2-1-4-3-5. The transition block 2-1-4-3-5 is slidably disposed relative to the inner support circular linear guide rail 2-1-4-3-1 to drive the inner support plate 2-1-4-3-3 to move closer to or away from the cylinder section.

[0068] In this embodiment, the inner supporting circular linear guide 2-1-4-3-1 is arranged along the radial direction of the disc base 2-1-4-1. For example, the inner supporting circular linear guide 2-1-4-3-1 can be locked and fixed to the disc base 2-1-4-1 and the disc base 2-1-4-1 by means of screws or the like.

[0069] According to one embodiment of the present invention, support plates 2-1-4-3-4 are respectively provided on both sides (left and right sides) of the adapter block 2-1-4-3-5 and fixedly connected to the inner support plate 2-1-4-3-3. The support plates 2-1-4-3-4 are used to support the inner support plate 2-1-4-3-3 and prevent deformation when the inner support plate 2-1-4-3-3 is tightened to support the short cylinder.

[0070] In this embodiment, for example, the support plate 2-1-4-3-4, the adapter block 2-1-4-3-5, and the inner support plate 2-1-4-3-3 can be locked and fixed by screws or other means.

[0071] like Figure 5 As shown, according to one embodiment of the present invention, multiple inner supporting circular components are provided along the axial direction of the cylindrical section. Multiple inner supporting circular columns 2-1-6 are provided between two adjacent inner supporting circular components to support the inner supporting circular components.

[0072] In this embodiment, for example, such as Figure 5 As shown, three inner support circular components are arranged along the axial direction of the cylinder section (2-1-7, 2-1-4, and 2-1-5 from bottom to top). The three inner support circular components have the same or similar structures to better support and fix the cylinder section.

[0073] like Figure 6As shown, according to one embodiment of the present invention, the inner supporting circular component (2-1-7, 2-1-4) is provided with a column mounting seat 2-1-4-4, which is used to install the inner supporting circular column 2-1-6 to support the inner supporting circular component (2-1-4, 2-1-5) above it.

[0074] In this embodiment, for example, the disc base 2-1-4-1 is provided with 6 inner supporting circular columns 2-1-6 along its circumferential direction. The column mounting base 2-1-4-4 and the inner supporting circular columns 2-1-6 can be locked and fixed by bolts or welding.

[0075] like Figure 8 As shown, multiple guide blocks 2-1-5-4 are also provided along the circumferential direction of the inner supporting circular component 2-1-5 near the top of the short cylinder. The guide blocks 2-1-5-4 are used to guide the short cylinder as it is fitted onto the supporting circular component 2-1.

[0076] In this embodiment, guide blocks 2-1-5-4 are used to guide the short cylinder fitted onto the supporting circular component 2-1, facilitating the loading and unloading of the short cylinder. For example, guide blocks 2-1-5-4 can be disposed on the inner support mechanism of the inner supporting circular component 2-1-5 near the top of the short cylinder. For example, 12 guide blocks 2-1-5-4 are disposed on the disc base of the inner supporting circular component 2-1-5 near the top of the short cylinder along its circumferential direction.

[0077] like Figure 5 and 9 As shown, according to one embodiment of the present invention, in addition to the inner supporting circular component, the supporting circular component 2-1 also includes a rotating mechanism 2-1-3. The inner supporting circular component 2-1 is disposed on the rotating mechanism 2-1-3. The rotating mechanism 2-1-3 includes a rotating mechanism base 2-1-3-1 and a driven gear 2-1-3-2. The driven gear 2-1-3-2 is rotatably disposed relative to the rotating mechanism base 2-1-3-1 to drive the inner supporting circular component 2-1 and the cylindrical section to rotate.

[0078] In this embodiment, for example, the disc base of the lowest inner support circular component 2-1-7 can be fixed to the driven gear 2-1-3-2 with screws to drive the inner support circular component 2-1-7 to rotate.

[0079] Furthermore, the inner support component 2 may also include an inner support base 2-1-1. The inner support base 2-1-1 has multiple base columns 2-1-2 arranged along its circumferential direction (e.g., six base columns 2-1-2). A rotating mechanism 2-1-3 is disposed on the base columns 2-1-2; for example, the rotating mechanism base 2-1-3-1 is supported by the base columns 2-1-2. The rotating mechanism 2-1-3 and the base columns 2-1-2 can be fixedly connected by bolts; for example, the rotating mechanism base 2-1-3-1 and the base columns 2-1-2 are fixedly connected by bolts.

[0080] According to one embodiment of the present invention, in addition to the rotating mechanism base 2-1-3-1 and the driven gear 2-1-3-2, the rotating mechanism 2-1-3 also includes a gear drive motor 2-1-3-3 and a drive gear 2-1-3-4. The drive gear 2-1-3-4 is meshed with the driven gear 2-1-3-2, and the gear drive motor 2-1-3-3 and the drive gear 2-1-3-4 are fixedly connected. When the gear drive motor 2-1-3-3 is started, it drives the drive gear 2-1-3-4, causing the driven gear 2-1-3-2 to rotate relative to the rotating mechanism base 2-1-3-1.

[0081] In this embodiment, the drive gear 2-1-3-4 is connected to the rotor of the gear drive motor 2-1-3-3. For example, the gear drive motor 2-1-3-3 can be mounted on the rotating mechanism base 2-1-3-1 and fixed by bolts. This welding system, through the gear drive motor 2-1-3-3 and the rotatable driven gear 2-1-3-2, can drive the inner support circular component 2-1 and the cylindrical section to rotate and position, so as to precisely control the welding position of the stringer on the short cylinder.

[0082] Furthermore, the rotating mechanism 2-1-3 also includes a boss 2-1-3-5. The boss 2-1-3-5 is fitted onto the circumferential outer side of the driven gear 2-1-3-2 to protect the driven gear 2-1-3-2.

[0083] In this embodiment, the boss 2-1-3-5 is fixedly mounted on the base 2-1-3-1 of the rotating mechanism, with a clearance between the boss 2-1-3-5 and the driven gear 2-1-3-2. For example, the boss 2-1-3-5 can be fixed to the base 2-1-3-1 of the rotating mechanism using screws or the like. The outer diameter of the boss 2-1-3-5 is slightly smaller than the outer diameter of the supporting short cylinder to provide operating space for the external pressure component 1.

[0084] like Figure 4 and 10As shown, according to one embodiment of the present invention, in addition to the supporting circular component 2-1, the inner supporting component 2 also includes an inner supporting column component 2-2. The inner supporting column component 2-2 is placed inside the cylindrical section. The inner supporting column component 2-2 includes an inner supporting column 2-2-3 and a column inner supporting mechanism 2-2-4, which is disposed on the side of the inner supporting column 2-2-3. The column inner supporting mechanism 2-2-4 includes an inner supporting column drive cylinder 2-2-3-2 and a column inner supporting plate 2-2-3-3 disposed along the radial direction of the cylindrical section. The column inner supporting plate 2-2-3-3 is connected to the telescopic rod of the inner supporting column drive cylinder 2-2-3-2. By extending and retracting the telescopic rod of the inner supporting column drive cylinder 2-2-3-2, the column inner supporting plate 2-2-3-3 is driven toward or away from the inner side of the cylindrical section, so that the column inner supporting plate 2-2-3-3 supports or releases the inner side of the cylindrical section.

[0085] In this embodiment, during the welding of the stringers, the inner support column component 2-2 can tighten the welding position from the inner side of the cylindrical section and cooperate with the inner support circular component (in its supported circular state) to form the inner support cylindrical surface for the stringer welding, ensuring welding accuracy and quality, and guaranteeing the stability of the weld quality. For example, multiple sets of column inner support mechanisms 2-2-4 are arranged along the axial direction of the cylindrical section (i.e., the height direction of the inner support column 2-2-3) (for example, two sets of column inner support mechanisms 2-2-4 are arranged). A gap is left between adjacent sets of column inner support mechanisms 2-2-4 to provide installation and operating space for the inner support circular component. For example, the column inner support plate 2-2-3-3 can be made of copper, which can prevent the cylindrical section from being welded to the inner support component.

[0086] According to one embodiment of the present invention, along the height direction of the inner support column 2-2-3, each group of inner support mechanisms 2-2-4 can be equipped with multiple inner support column drive cylinders 2-2-3-2 (for example, three inner support column drive cylinders 2-2-3-2). The multiple inner support column drive cylinders 2-2-3-2 jointly control the inner support plate 2-2-3-3 of the column to move closer to or away from the cylinder section.

[0087] According to one embodiment of the present invention, in addition to the inner support column drive cylinder 2-2-3-2 and the column inner support plate 2-2-3-3, the column inner support mechanism 2-2-4 includes a column inner support base 2-2-3-1 disposed on the side of the inner support column 2-2-3.

[0088] According to one embodiment of the present invention, in addition to the inner support column 2-2-3 and the column inner support mechanism 2-2-4, the inner support column component 2-2 also includes an inner support column linear guide rail 2-2-2. The inner support column linear guide rail 2-2-2 is arranged along the radial direction of the cylinder section, and the inner support column 2-2-3 is slidably arranged relative to the inner support column linear guide rail 2-2-2.

[0089] In this embodiment, the inner support column 2-2-3 slides relative to the inner support column linear guide 2-2-2, which allows space to be created when the supporting round component 2-1 rotates, thus preventing interference between the inner support column 2-2-3 and the supporting round component 2-1. For example, the inner support column 2-2-3 can be fixedly installed on the slider of the inner support column linear guide 2-2-2.

[0090] Furthermore, the inner support column 2-2-3 can be installed on the inner support column base 2-2-1.

[0091] In this embodiment, for example, the inner support base 2-1-1 can be disposed on the inner support column base 2-2-1 and fixed by bolts. The inner support base 2-1-1 has a ring structure, and the inner support column 2-2-3 or the inner support column linear guide rail 2-2-2 is disposed on the inner support column base 2-2-1 through the hollow part of the inner support base 2-1-1. For example, the inner support column base 2-2-1 can be fixed to the ground by bolts. The inner support column linear guide rail 2-2-2 and the inner support column base 2-2-1 are fixed by screws or other means.

[0092] like Figure 11 and 12 As shown, according to one embodiment of the present invention, the external pressure component 1 includes an external pressure column 1-2 and a stringer positioning component. The stringer positioning component is disposed on the side of the external pressure column 1-2. The stringer positioning component includes an external pressure driving cylinder 1-4-5 and an external pressure block 1-4-2 disposed along the radial direction of the cylinder segment. The external pressure block 1-4-2 is connected to the telescopic rod of the external pressure driving cylinder 1-4-5. By extending and retracting the telescopic rod of the external pressure driving cylinder 1-4-5, the external pressure block 1-4-2 is driven towards or away from the stringer on the outer side of the cylinder segment, so as to press the stringer to the outer side of the cylinder segment or release the stringer.

[0093] In this embodiment, for example, the external pressure drive cylinder 1-4-5 can be a cylinder or the like. The external pressure drive cylinder 1-4-5 can be mounted on the external pressure column 1-2. This welding system, through the external pressure component 1, can press the stringer to the outer side of the cylinder section, thereby achieving the positioning and welding of the stringer.

[0094] like Figure 11 As shown, according to one embodiment of the present invention, in addition to the external pressure column 1-2 and the stringer positioning component, the external pressure component 1 also includes an external pressure linear guide rail 1-7. The external pressure column 1-2 is slidably disposed relative to the external pressure linear guide rail 1-7, so that the external pressure column 1-2 drives the stringer positioning component to move closer to or away from the cylinder section.

[0095] In this embodiment, the external pressure linear guides 1-7 can be arranged along the radial direction of the cylinder section.

[0096] Furthermore, the external pressure component 1 also includes an external pressure base 1-1. The external pressure base 1-1 is disposed on the external pressure linear guide 1-7.

[0097] like Figure 12 and 13 As shown, according to one embodiment of the present invention, an elevator 1-3 is provided on the external pressure column 1-2. The elevator 1-3 can be raised and lowered along the height direction of the external pressure column 1-2.

[0098] In this embodiment, the elevators 1-3 facilitate the installation of the stringers by production personnel.

[0099] According to one embodiment of the present invention, the elevator 1-3 includes a lifting guide rail 1-3-1 and a passenger escalator 1-3-2, wherein the lifting guide rail 1-3-1 is arranged along the height direction of the external pressure column 1-2. The passenger escalator 1-3-2 is arranged on the lifting guide rail 1-3-1.

[0100] In this embodiment, for example, the passenger escalator 1-3-2 is slidably arranged along the lifting guide rail 1-3-1 to achieve lifting and lowering. Alternatively, the lifting guide rail 1-3-1 is slidably arranged along the external pressure column 1-2 and fixedly arranged with the passenger escalator 1-3-2 to drive the passenger escalator 1-3-2 to lift and lower.

[0101] like Figure 12 As shown, according to one embodiment of the present invention, in addition to the outer clamping drive cylinder 1-4-5 and the outer clamping block 1-4-2, the stringer positioning component also includes a stringer end clamping drive cylinder 1-4-3 and an inner positioning block 1-4-1 arranged along the axial direction of the cylinder segment. The inner positioning block 1-4-1 is connected to the telescopic rod of the stringer end clamping drive cylinder 1-4-3. By extending and retracting the telescopic rod of the stringer end clamping drive cylinder 1-4-3, the inner positioning block 1-4-1 is driven toward or away from the end of the stringer, so as to clamp or release the stringer from the end in the length direction of the stringer.

[0102] In this embodiment, the outer clamping block 1-4-2 cooperates with the inner positioning block 1-4-1 to clamp the stringer. For example, the stringer end clamping drive cylinder 1-4-3 can be an electric cylinder, etc.

[0103] like Figure 11 and 12 As shown, according to one embodiment of the present invention, the external pressure column 1-2 is provided with an upper stringer positioning component 1-4 and a lower stringer positioning component 1-5 at positions near the two ends of the cylindrical section or the two ends of the stringer (i.e., near the upper and lower ends of the external pressure column 1-2) to press or release the stringer from both ends in the length direction of the stringer.

[0104] In this embodiment, the inner positioning blocks 1-4-1 of the upper stringer positioning component 1-4 and the lower stringer positioning component 1-5 are arranged opposite to each other and can have the same or substantially the same structure. The upper stringer positioning component 1-4 and the lower stringer positioning component 1-5 respectively press or release the stringer from the upper end and the lower end along the axial direction of the stringer to connect the stringer and the short cylinder. For example, the upper stringer positioning component 1-4 and the lower stringer positioning component 1-5 can be locked and fixed to the external pressure column 1-2 by bolts.

[0105] like Figure 14-17 As shown, according to one embodiment of the present invention, the inner positioning block 1-4-1 is provided with an inner positioning quick-connect hole 1-4-1-4 on the end face of the telescopic rod of the stringer end pressing drive cylinder 1-4-3. An inner positioning locking bolt hole 1-4-1-2 is provided on the side of the inner positioning block 1-4-1, and the inner positioning locking bolt hole 1-4-1-2 communicates with the inner positioning quick-connect hole 1-4-1-4. A locking component (e.g., a bolt or screw) is locked to the telescopic rod of the stringer end pressing drive cylinder 1-4-3 inserted into the inner positioning quick-connect hole 1-4-1-4 through the inner positioning locking bolt hole 1-4-1-2.

[0106] According to one embodiment of the present invention, the inner positioning quick-connect hole 1-4-1-4 has a rounded chamfer 1-4-1-1 on the outside, so that the telescopic rod of the stringer end pressing drive cylinder 1-4-3 can be inserted into the inner positioning quick-connect hole 1-4-1-4.

[0107] According to one embodiment of the present invention, an inner positioning wedge groove 1-4-1-5 is provided at the entrance of the inner positioning quick insertion hole 1-4-1-4 to facilitate the installation and positioning of the telescopic rod of the stringer end pressing drive cylinder 1-4-3 with the inner positioning quick insertion hole 1-4-1-4.

[0108] like Figure 18 As shown, according to one embodiment of the present invention, the inner positioning block 1-4-1 is used to mate the end face of the connecting stringer with the end face of the stringer. For example, the end face of the inner positioning block 1-4-1 used to connect the end of the connecting stringer is the inner positioning trapezoidal contour inner wall 1-4-1-3. The inner positioning trapezoidal contour inner wall 1-4-1-3 is a trapezoidal surface or a rectangular surface.

[0109] like Figure 12 As shown, according to one embodiment of the present invention, for example, the stringer end clamping drive cylinder 1-4-3 can be connected to the outer clamping drive cylinder 1-4-5 via a clamping connecting block 1-4-4. For example, the clamping connecting block 1-4-4 is disposed on the outer clamping drive cylinder 1-4-5, and the stringer end clamping drive cylinder 1-4-3 is disposed on the end face of the clamping connecting block 1-4-4 facing the stringer.

[0110] like Figure 19-21As shown, according to one embodiment of the present invention, the end face of the telescopic rod of the external clamping block 1-4-2 connected to the external clamping drive cylinder 1-4-5 is provided with an external clamping quick-connect hole 1-4-2-2. The upper end face of the external clamping block 1-4-2 is provided with an external clamping locking bolt hole 1-4-2-1, which communicates with the external clamping quick-connect hole 1-4-2-2. A locking component (e.g., a bolt or screw) is locked to the telescopic rod of the external clamping drive cylinder 1-4-5 inserted into the external clamping quick-connect hole 1-4-2-2 via the external clamping locking bolt hole 1-4-2-1.

[0111] In this embodiment, the external pressure quick-connect hole 1-4-2-2 is used to enable quick connection or replacement of the external pressure block 1-4-2 with the telescopic rod of the external pressure drive cylinder 1-4-5. For example, the external pressure locking bolt hole 1-4-2-1 can be a bolt hole.

[0112] like Figure 22 As shown, according to one embodiment of the present invention, an external pressure wedge groove 1-4-2-3 is provided at the outlet of the external pressure quick insertion hole 1-4-2-2 to facilitate the quick installation and positioning of the telescopic rod of the external pressure drive cylinder 1-4-5 and the external pressure quick insertion hole 1-4-2-2.

[0113] like Figure 20 As shown, the outer clamping block 1-4-2 is used to connect the end of the stringer. Two support arms can be set in the direction of the stringer. The two support arms and the end face of the outer clamping block 1-4-2 connecting the stringer together form a space to accommodate the stringer.

[0114] The welding system in this embodiment can better wrap the stringers and clamp and fix them.

[0115] According to one embodiment of the present invention, the two support arms and the end faces of the connecting stringers of the outer clamping block 1-4-2 enclose each other to form an outer pressure-shaped trapezoidal inner wall 1-4-2-4. The cross-section of the space enclosed by the outer pressure-shaped trapezoidal inner wall 1-4-2-4 is adapted to the cross-section of the stringers, for example, it is trapezoidal or rectangular.

[0116] like Figure 11 , 23As shown in Figure 24, according to one embodiment of the present invention, in addition to the external pressure component 1 and the internal support component 2, the welding system further includes a welding component 1-6. The welding component 1-6 includes a welding mechanism 1-6-2. The welding mechanism 1-6-2 includes a Z-axis slider 1-6-2-1, a Y-axis slider 1-6-2-2, and a welding head 1-6-2-4. Along the axial direction of the cylinder segment, the Z-axis slider 1-6-2-1 is slidably disposed on the side of the external pressure column 1-2. Along the radial direction of the cylinder segment, the Y-axis slider 1-6-2-2 is slidably disposed on the Z-axis slider 1-6-2-1, and the welding head 1-6-2-4 is disposed on the Y-axis slider 1-6-2-2. The Z-axis slider 1-6-2-1 can drive the Y-axis slider 1-6-2-2 to move along the axial direction of the cylinder segment, so that the welding head 1-6-2-4 can move along the axial or radial direction of the cylinder segment.

[0117] In this embodiment, the Y-axis slider 1-6-2-2 moves the welding head 1-6-2-4 closer to or further away from the stringer. The Z-axis slider 1-6-2-1 moves the Y-axis slider 1-6-2-2 up and down, allowing the welding head 1-6-2-4 to weld the entire stringer. For example, the external pressure column 1-2 is equipped with a lead screw guide along its height direction, and the welding component 1-6 is mounted on the lead screw guide to control the lifting and lowering of the welding component 1-6.

[0118] For example, welding head 1-6-2-4 can be connected to Y-axis slider 1-6-2-2 via welding connecting block 1-6-2-3. That is, welding connecting block 1-6-2-3 is fixedly mounted on Y-axis slider 1-6-2-2, and welding head 1-6-2-4 is mounted on welding connecting block 1-6-2-3. For example, Y-axis slider 1-6-2-2 can be a linear guide, and welding connecting block 1-6-2-3 or welding head is fixedly connected to a movable slider of Y-axis slider 1-6-2-2. By controlling the movement of the slider, welding connecting block 1-6-2-3 and welding head are moved towards or away from the short cylinder. For example, welding head 1-6-2-4 can be a galvanometer welding system for laser welding of stringers.

[0119] like Figure 25As shown, according to one embodiment of the present invention, in addition to the welding mechanism 1-6-2, the welding component 1-6 also includes a welding clamping mechanism 1-6-1. The welding clamping mechanism 1-6-1 includes a clamping connecting plate 1-6-1-2, an X-shaped connecting rod 1-6-1-4, and stringer clamping blocks 1-6-1-6. The clamping connecting plate 1-6-1-2 is fixedly connected to the Y-axis slider 1-6-2-2. The X-shaped connecting rod 1-6-1-4 is rotatably mounted on the clamping connecting plate 1-6-1-2, and its two first ends are respectively connected to a stringer clamping block 1-6-1-6. By moving the two second ends of the X-shaped connecting rod 1-6-1-4 closer to or further away from each other, the two first ends of the X-shaped connecting rod 1-6-1-4 drive the two stringer clamping blocks 1-6-1-6 to move closer to or further away from each other, thereby clamping or releasing the stringer from opposite sides.

[0120] In this embodiment, the welding clamping mechanism 1-6-1 cooperates with the positioning component to press the stringer against the outer side of the short cylinder, ensuring that the weldable portion of the stringer is in contact with the short cylinder, so as to weld the part of the stringer to be welded. This welding system can improve welding efficiency and welding quality.

[0121] According to one embodiment of this utility model, for example, the connecting block 1-6-3 can be provided with a welding connecting plate 1-6-2-5. The clamping connecting plate 1-6-1-2 can be connected to the welding connecting plate 1-6-2-5 via the base plate 1-6-1-1 to adjust the position of the welding head 1-6-2-4 and the welding clamping mechanism 1-6-1. For example, the base plate 1-6-1-1 and the welding connecting plate 1-6-2-5 can be locked together with bolts. The clamping connecting plate 1-6-1-2 and the base plate 1-6-1-1 can also be locked together with bolts.

[0122] like Figure 25 As shown, according to one embodiment of the present invention, in addition to the pressing connecting plate 1-6-1-2, the X-shaped connecting rod 1-6-1-4, and the stringer clamping block 1-6-1-6, the welding pressing mechanism 1-6-1 also includes two connecting rod drive cylinders 1-6-1-3. The two connecting rod drive cylinders 1-6-1-3 are rotatably connected to the pressing connecting plate 1-6-1-2. The telescopic rods of the two connecting rod drive cylinders 1-6-1-3 are rotatably connected to the two second ends of the X-shaped connecting rod 1-6-1-4, respectively. By extending and retracting the telescopic rods of the connecting rod drive cylinders 1-6-1-3, the two second ends of the X-shaped connecting rod 1-6-1-4 are driven to move closer to or further away from each other.

[0123] In this embodiment, for example, the connecting rod drive cylinder 1-6-1-3 can be an electric cylinder or the like. The second end of the X-type connecting rod 1-6-1-4 can be locked and fixed to the telescopic rod of the connecting rod drive cylinder 1-6-1-3 by bolts and nuts. When the telescopic rod of the connecting rod drive cylinder 1-6-1-3 retracts, the stringer clamping block 1-6-1-6 clamps the stringer and presses it against the outer wall of the short cylinder.

[0124] According to one embodiment of the present invention, for example, the welding clamping mechanism 1-6-1 may have two clamping connecting plates 1-6-1-2 arranged horizontally (on opposite sides of the stringer). The two clamping connecting plates 1-6-1-2 are spaced apart, and each clamping connecting plate 1-6-1-2 corresponds to a stringer clamping block 1-6-1-6. Correspondingly, the welding connecting block 1-6-2-3 is provided with two welding connecting plates 1-6-2-5, and the two clamping connecting plates 1-6-1-2 are respectively connected to the welding connecting block 1-6-2-3 through a welding connecting plate 1-6-2-5. The welding head 1-6-2-4 is arranged between the two welding connecting plates 1-6-2-5 to weld the part of the stringer to be welded.

[0125] In this embodiment, for example, the welding clamping mechanism 1-6-1 further includes a connecting rod 1-6-1-5. Both ends of the connecting rod 1-6-1-5 are fixedly connected to a clamping connecting plate 1-6-1-2. A pivot is provided in the middle of the connecting rod 1-6-1-5, and the intersection of the X-shaped connecting rods 1-6-1-4 is rotatably connected to the pivot.

[0126] According to one embodiment of the present invention, for example, the welding clamping mechanism 1-6-1 is provided with two sets of clamping connecting plates 1-6-1-2 in the height direction. Each set of clamping connecting plates 1-6-1-2 includes two horizontally placed clamping connecting plates 1-6-1-2 (i.e., a total of four clamping connecting plates 1-6-1-2). Along the height direction, the welding clamping mechanism 1-6-1 is provided with two X-shaped connecting rods 1-6-1-4. The upper set of clamping connecting plates 1-6-1-2 is provided with two connecting rod drive cylinders 1-6-1-3, and the telescopic rod of each connecting rod drive cylinder 1-6-1-3 is rotatably connected to one of the second ends of the X-shaped connecting rod 1-6-1-4. The lower set of clamping connecting plates 1-6-1-2 is provided with two connecting rod drive cylinders 1-6-1-3, and the telescopic rod of each connecting rod drive cylinder 1-6-1-3 is rotatably connected to one of the second ends of the other X-shaped connecting rod 1-6-1-4. The two first ends of the upper X-shaped connecting rod 1-6-1-4 are respectively connected to the upper part of a stringer clamping block 1-6-1-6, and the two first ends of the lower X-shaped connecting rod 1-6-1-4 are respectively connected to the lower part of a stringer clamping block 1-6-1-6, so as to better clamp and fix the stringer with the stringer clamping block 1-6-1-6.

[0127] like Figure 26 and 27 As shown, according to one embodiment of the present invention, connecting bosses 1-6-1-6-5 are respectively provided at both ends of the stringer clamping block 1-6-1-6 in the length direction (i.e., the height direction). The first end of the X-shaped connecting rod 1-6-1-4 is connected to the connecting bosses 1-6-1-6-5 of the stringer clamping block 1-6-1-6.

[0128] In this embodiment, for example, such as Figure 28 As shown, the connecting boss 1-6-1-6-5 has a circular hole 1-6-1-6-6 along the length of the stringer clamping block 1-6-1-6. The first end of the X-type connecting rod 1-6-1-4 is connected to the circular hole 1-6-1-6-6.

[0129] According to one embodiment of the present invention, the stringer clamping block 1-6-1-6 is used to clamp the end face of the stringer and is provided with at least one welding clearance groove 1-6-1-6-2. The welding clearance groove 1-6-1-6-2 is used to provide welding space for the welding head 1-6-2-4, ensuring that the welding head 1-6-2-4 welds the stringer.

[0130] like Figure 29 As shown, according to one embodiment of the present invention, the stringer clamping block 1-6-1-6 is provided with a protective gas chamber 1-6-1-6-4, a gas inlet 1-6-1-6-1, and a protective gas outlet 1-6-1-6-3. The gas inlet 1-6-1-6-1 and the protective gas outlet 1-6-1-6-3 are connected to the protective gas chamber 1-6-1-6-4. The protective gas outlet 1-6-1-6-3 is located on the end face of the stringer clamping block 1-6-1-6 used to clamp the stringer. Protective gas is supplied to the protective gas chamber 1-6-1-6-4 from the gas inlet 1-6-1-6-1, and the protective gas is blown out from the protective gas outlet 1-6-1-6-3 to supply protective gas to the welding part of the stringer.

[0131] In this embodiment, for example, the protective gas outlet 1-6-1-6-3 can be provided at the welding clearance groove 1-6-1-6-2. Each array of welding clearance grooves 1-6-1-6-2 can be provided with multiple protective gas outlets 1-6-1-6-3, for example, three columns and five rows of protective gas outlets 1-6-1-6-3. The diameter of the protective gas outlet 1-6-1-6-3 can be 1 to 5 mm. The protective gas cavity 1-6-1-6-4 can be a rectangular protective gas cavity.

[0132] The above embodiments of this utility model can be combined with each other and have corresponding technical effects.

[0133] 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 the outer stringers of stainless steel rocket propellant tank sections, characterized in that, include: Internal support components and external pressure components; The inner support component includes a rounding component, which is used to round the cylinder section from the inside. The external pressure component is used to press the stringers to the outer side of the cylinder section for welding the cylinder section and stringers.

2. The welding system according to claim 1, characterized in that, The supporting circular component includes an inner supporting circular component; the inner supporting circular component includes a disc base, and the disc base is provided with a plurality of inner supporting mechanisms along its circumferential direction; the inner supporting mechanism includes an inner supporting drive cylinder and an inner supporting plate arranged along the radial direction of the cylindrical section, and the inner supporting plate is connected to the telescopic rod of the inner supporting drive cylinder; by extending and retracting the telescopic rod of the inner supporting drive cylinder, the inner supporting plate is driven to move closer to or away from the cylindrical section.

3. The welding system according to claim 2, characterized in that, Multiple inner supporting circular components are provided along the axial direction of the cylindrical section; multiple inner supporting circular columns are provided between two adjacent inner supporting circular components to support the inner supporting circular components.

4. The welding system according to claim 2, characterized in that, The supporting round component also includes a rotating mechanism, and the inner supporting round component is disposed on the rotating mechanism; the rotating mechanism includes a rotating mechanism base and a driven gear, and the driven gear is rotatably disposed relative to the rotating mechanism base to drive the inner supporting round component and the cylindrical section to rotate.

5. The welding system according to claim 1, characterized in that, The internal support component further includes an internal support column component, which is placed inside the cylindrical section. The internal support column component includes an internal support column and an internal support mechanism, the internal support mechanism being disposed on the side of the internal support column. The internal support mechanism includes an internal support column drive cylinder and an internal support plate disposed along the radial direction of the cylindrical section. The internal support plate is connected to the telescopic rod of the internal support column drive cylinder. By extending or retracting the telescopic rod of the internal support column drive cylinder, the internal support plate is driven toward or away from the inner side of the cylindrical section, so that the internal support plate supports or releases the inner side of the cylindrical section.

6. The welding system according to claim 1, characterized in that, The external pressure component includes an external pressure column and a stringer positioning component; the stringer positioning component is disposed on the side of the external pressure column; the stringer positioning component includes an external pressure driving cylinder and an external pressure block disposed along the radial direction of the cylinder segment, the external pressure block being connected to the telescopic rod of the external pressure driving cylinder; by extending and retracting the telescopic rod of the external pressure driving cylinder, the external pressure block is driven toward or away from the stringer on the outer side of the cylinder segment, so as to press the stringer to the outer side of the cylinder segment or release the stringer.

7. The welding system according to claim 6, characterized in that, The stringer positioning component further includes a stringer end clamping drive cylinder and an inner positioning block arranged along the axial direction of the cylinder segment. The inner positioning block is connected to the telescopic rod of the stringer end clamping drive cylinder. By extending and retracting the telescopic rod of the stringer end clamping drive cylinder, the inner positioning block is driven toward or away from the end of the stringer, so as to clamp or release the stringer from the end in the length direction of the stringer.

8. The welding system according to claim 6, characterized in that, It also includes a welding component; the welding component includes a welding mechanism; the welding mechanism includes a Z-axis slider, a Y-axis slider and a welding head; along the axial direction of the cylinder section, the Z-axis slider is slidably disposed with respect to the side of the external pressure column; along the radial direction of the cylinder section, the Y-axis slider is slidably disposed with respect to the Z-axis slider, the welding head is disposed on the Y-axis slider, and the Z-axis slider can drive the Y-axis slider to move along the axial direction of the cylinder section, so that the welding head can move along the axial or radial direction of the cylinder section.

9. The welding system according to claim 8, characterized in that, The welding component further includes a welding clamping mechanism; the welding clamping mechanism includes a clamping connecting plate, an X-shaped connecting rod, and stringer clamping blocks; the clamping connecting plate is fixedly connected to the Y-axis slider, the X-shaped connecting rod is rotatably disposed on the clamping connecting plate, and the two first ends of the X-shaped connecting rod are respectively connected to one of the stringer clamping blocks; by moving the two second ends of the X-shaped connecting rod closer or further away from each other, the two first ends of the X-shaped connecting rod drive the two stringer clamping blocks closer or further away from each other, so as to clamp or release the stringer from opposite sides of the stringer.

10. The welding system according to claim 9, characterized in that, The welding clamping mechanism further includes two connecting rod drive cylinders; the two connecting rod drive cylinders are rotatably connected to the clamping connecting plate; the telescopic rods of the two connecting rod drive cylinders are rotatably connected to the two second ends of the X-shaped connecting rod respectively; by extending and retracting the telescopic rods of the connecting rod drive cylinders, the two second ends of the X-shaped connecting rod are driven to move closer or further apart from each other.

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