Inner supporting tool for welding outer stringer of short cylinder of stainless steel storage box

Abstract

The utility model provides an inner supporting tool for welding a short-cylinder outer stringer of a stainless steel storage box. The inner supporting tool comprises an inner supporting circular component and an outer supporting circular component, the inner circle supporting component comprises a disc base, and a plurality of inner supporting mechanisms are arranged on the disc base in the circumferential direction of the disc base. The inner supporting mechanism is movably arranged in the radial direction of the disc base so as to be close to or away from the short cylinder, and the short cylinder is supported to be round from the interior of the short cylinder. The inner supporting tool can guarantee the shape precision of the short cylinder in the welding process.

Description

Technical Field

[0001] This utility model relates to the field of launch vehicle storage tanks, specifically to an internal support tooling for welding the outer truss of the short cylinder of a stainless steel storage tank. Background Technology

[0002] Stainless steel boasts advantages such as high strength, corrosion resistance, and oxidation resistance, and is simple to process and manufacture, as well as being inexpensive. Using stainless steel as the material for rocket bodies can reduce manufacturing costs. In the manufacturing process of stainless steel rocket propellant tanks, stringers are typically welded to the short cylinder of the tank to provide longitudinal support, enabling the rocket body to withstand various loads during flight and ensuring the integrity and stability of the propellant tank structure. Furthermore, the stringer design reduces the overall weight of the rocket body while ensuring sufficient strength and rigidity of the rocket propellant tank.

[0003] To achieve the welding of the stainless steel rocket propellant tank short cylinder and stringers, it is particularly important to design an internal support fixture for welding the outer stringers of the stainless steel propellant tank short cylinder. Utility Model Content

[0004] The purpose of this utility model is to overcome the shortcomings of the prior art and provide an internal support tooling for welding the outer truss of the short cylinder of a stainless steel storage tank.

[0005] This utility model provides an internal support fixture for welding the outer girder of a short cylinder in a stainless steel storage tank, comprising: an internal support circular component; the internal support circular component includes a disc base, and the disc base is provided with a plurality of internal support mechanisms along its circumferential direction; the internal support mechanisms are movably arranged along the radial direction of the disc base to move toward or away from the short cylinder, and to support the short cylinder from the inside of the short cylinder.

[0006] According to one embodiment of the present invention, the inner support mechanism includes an inner support guide rod and an inner support plate arranged in the radial direction of the disc base; the inner support guide rod is movably arranged in the radial direction of the disc base; the inner support plate is connected to the inner support guide rod; by moving the inner support guide rod in the radial direction of the disc base, the inner support plate is driven to move closer to or away from the short cylinder.

[0007] According to one embodiment of the present invention, the disc base is provided with a plurality of disc linear guide rails along its circumferential direction; the inner support guide rod is fixedly connected to the slider of the disc linear guide rail; the inner support guide rod is driven to move along the disc linear guide rail by the slider of the disc linear guide rail.

[0008] According to one embodiment of the present invention, the inner support circular component further includes a guide drive component; the guide drive component includes a guide disk; the guide disk is disposed on the disk base and is rotatably disposed relative to the disk base; the guide disk is provided with a plurality of guide grooves corresponding to the inner support mechanism along its circumferential direction; along the circumferential direction of the guide disk, the distance between the guide groove and the center of the guide disk increases; the inner support guide rod is provided with a guide post near the end face of the guide disk, one end of the guide post is disposed in the guide groove, and the guide post is slidably disposed relative to the guide groove; by rotating the guide disk relative to the disk base, the guide groove drives the guide post to move along the radial direction of the disk base.

[0009] According to one embodiment of the present invention, the disc base is provided with a drive gear, which meshes with the guide disc; the rotation of the drive gear drives the guide disc to rotate relative to the disc base.

[0010] According to one embodiment of the present invention, a plurality of inner supporting circular components are provided along the axial direction; a plurality of inner supporting circular columns are provided between two adjacent inner supporting circular components to support the inner supporting circular components.

[0011] According to one embodiment of the present invention, a rotating mechanism is further included; the rotating mechanism includes a rotating mechanism base and a driven gear, the driven gear being used to support the disc base and the bottom of the short cylinder; the driven gear is rotatably disposed relative to the rotating mechanism base to drive the disc base and the short cylinder to rotate.

[0012] According to one embodiment of the present invention, the rotating mechanism further includes a driving gear, which meshes with the driven gear; the driving gear is connected to a motor; when the motor is started, it drives the driving gear to rotate.

[0013] According to one embodiment of the present invention, it further includes an inner support column and an inner support mechanism for the column; the inner support column is used to be placed inside the short cylinder, and the inner support mechanism for the column is disposed on the circumferential side of the inner support column to support the inner side of the short cylinder.

[0014] According to one embodiment of the present invention, the column inner support mechanism includes an inner support column drive cylinder and a column inner support plate arranged in the radial direction of the disc base. The column inner support plate is connected to the telescopic rod of the inner support column drive cylinder. The inner support plate is driven to move towards or away from the inner side of the short cylinder by the extension and retraction of the telescopic rod of the inner support column drive cylinder.

[0015] According to the present invention, an internal support fixture for welding the outer truss of a short cylinder of a stainless steel storage tank uses an internal support mechanism of a rounding component to round and fix the short cylinder inside, ensuring the shape accuracy of the short cylinder during the welding process, thereby improving the welding accuracy and welding quality.

[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 an internal support fixture for welding the outer truss of a short cylinder of a stainless steel storage tank, according to an embodiment of the present invention.

[0019] Figure 2 This is a perspective view of an internal support fixture for welding the outer truss of a short cylinder of a stainless steel storage tank, according to an embodiment of the present invention.

[0020] Figure 3 This is a perspective view of a disc linear guide rail according to an embodiment of the present invention;

[0021] Figure 4 This is a top view of an embodiment of the present invention, showing the inner supporting circular component in a state where the short cylinder is not fully supported;

[0022] Figure 5 This is a top view of the inner supporting circular component in the state of supporting the short cylinder according to an embodiment of the present invention;

[0023] Figure 6 This is a top view of an embodiment of the present invention, showing the inner supporting circular component in a state where the short cylinder is not fully supported;

[0024] Figure 7 This is a perspective view of a rotating mechanism according to an embodiment of the present invention.

[0025] Explanation of reference numerals in the attached figures:

[0026] 1-1 Circular base; 1-2 Inner support guide rod; 1-3 Inner support plate; 1-4 Inner support circular column; 1-5 Rotating mechanism base; 1-6 Driven gear; 1-7 Guide disc; 1-8 Guide groove; 1-9 Guide column; 1-10 Inner support column; 1-11 Inner support column drive cylinder; 1-12 Column inner support plate; 1-13 Drive gear; 1-14 Driving gear; 1-15 Inner support base; 1-16 Circular linear guide rail. Detailed Implementation

[0027] 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.

[0028] 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.

[0029] 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.

[0030] 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.

[0031] 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, and their connotations are not limited to the specific terms used. Generally, the launch vehicle of this utility model includes space launch vehicles and rockets used to launch satellites, spacecraft, or other probes, as well as various missiles, rockets, and other weapons used to launch military payloads, and similar products capable of sending payloads into the air. Those skilled in the art, when interpreting the above specific terms, should not limit the launch vehicle to only one of space launch vehicles, rockets, or missiles based on the specific terms used in the description, thereby narrowing the scope of protection of this utility model.

[0032] 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.

[0033] Figure 1 This is a perspective view of an internal support fixture for welding the outer truss of a short cylinder of a stainless steel storage tank, according to an embodiment of the present invention. Figure 2 This is a perspective view of an internal support fixture for welding the outer truss of a short cylinder of a stainless steel storage tank, according to an embodiment of the present invention. Figure 3 This is a perspective view of a disc linear guide rail according to an embodiment of the present invention; Figure 4 This is a top view of an embodiment of the present invention, showing the inner supporting circular component in a state where the short cylinder is not fully supported; Figure 5 This is a top view of the inner supporting circular component in the state of supporting the short cylinder according to an embodiment of the present invention; Figure 6 This is a top view of an embodiment of the present invention, showing the inner supporting circular component in a state where the short cylinder is not fully supported; Figure 7 This is a perspective view of a rotating mechanism according to an embodiment of the present invention.

[0034] like Figure 1 and 2 As shown, this utility model provides an internal support fixture for welding the outer girder of a short cylinder in a stainless steel storage tank, comprising: an internal support circular component, which includes a disc base 1-1. Multiple internal support mechanisms are arranged along the circumferential direction of the disc base 1-1. The internal support mechanisms are movably arranged along the radial direction of the disc base 1-1 to move towards or away from the short cylinder, thus supporting the short cylinder from the inside.

[0035] In this embodiment, for example, the end face of the inner support mechanism that contacts the short cylinder is a profile that matches the inner surface of the short cylinder. This inner support fixture, through the inner support mechanism of the inner support circular component, rounds and fixes the short cylinder inside the short cylinder for welding the short cylinder and the stringers. This inner support fixture ensures the shape accuracy of the tank short cylinder during the welding process, thereby improving welding accuracy and welding quality.

[0036] like Figure 2 As shown, according to one embodiment of the present invention, the inner support mechanism includes an inner support guide rod 1-2 and an inner support plate 1-3 arranged radially along the disc base 1-1. The inner support guide rod 1-2 is movably arranged radially along the disc base 1-1. The inner support plate 1-3 is connected to the inner support guide rod 1-2. By moving the inner support guide rod 1-2 radially along the disc base 1-1, the inner support plate 1-3 is moved closer to or away from the short cylinder.

[0037] The internal support fixture in this embodiment facilitates the loading and unloading of the short cylinder by providing a retractable internal support mechanism.

[0038] like Figure 3 As shown, according to one embodiment of the present invention, for example, a plurality of circular linear guide rails 1-16 are arranged along the circumferential direction of the circular base 1-1. The inner support guide rod 1-2 is fixedly connected to the slider of the circular linear guide rail 1-16. The inner support guide rod 1-2 is driven to move along the circular linear guide rail 1-16 (i.e., along the radial direction of the circular base 1-1) by the slider of the circular linear guide rail 1-16.

[0039] In this embodiment, the slider of the disc linear guide rail 1-16 drives the inner support guide rod 1-2 to move in the radial direction of the disc base 1-1, so that the inner support plate 1-3 expands the short cylinder into a round shape from the inside of the short cylinder.

[0040] Furthermore, when the inner support mechanism supports the inner side of the short cylinder, the inner support plates 1-3 of multiple inner support mechanisms are spliced ​​together to form a complete circle that matches the inner side of the short cylinder, further ensuring the shape accuracy of the short cylinder.

[0041] like Figure 4 and 5 As shown, according to one embodiment of the present invention, in addition to the disc base 1-1, the inner support circular component also includes a guide drive component. The guide drive component includes a guide disc 1-7. The guide disc 1-7 is disposed on the disc base 1-1 and is rotatably disposed relative to the disc base 1-1. The guide disc 1-7 has a plurality of guide grooves 1-8 corresponding to the inner support mechanism along its circumferential direction. Along the circumferential direction of the guide disc 1-7, the distance between the guide grooves 1-8 and the center of the guide disc 1-7 increases. The inner support guide rod 1-2 has a guide post 1-9 disposed near the end face of the guide disc 1-7, one end of the guide post 1-9 is disposed in the guide groove 1-8, and the guide post 1-9 is slidably disposed relative to the guide groove 1-8. By rotating the guide disc 1-7 relative to the disc base 1-1, the guide groove 1-8 drives the guide post 1-9 to move in the radial direction of the disc base 1-1.

[0042] In this embodiment, the guide disc 1-7 rotates relative to the disc base 1-1, the guide groove 1-8 moves, and by engaging the guide post 1-9, the guide post drives the inner support guide rod 1-2 to move radially along the disc base 1-1, thereby achieving the extension and retraction of the inner support guide rod 1-2 relative to the disc base 1-1. The guide post is confined within the guide groove and is arc-shaped, thus allowing the guide rod to move radially along the disc. For example, the guide groove 1-8 extends circumferentially along the guide disc 1-7 and is arc-shaped, extending towards the circumferential side of the guide disc 1-7.

[0043] like Figure 6 As shown, according to one embodiment of the present invention, a drive gear 1-13 may be provided on the disc base 1-1. The drive gear 1-13 is meshed with the guide disc 1-7, and the rotation of the drive gear 1-13 drives the guide disc 1-7 to rotate relative to the disc base 1-1.

[0044] In this embodiment, for example, drive gear 1-13 is connected to a motor. When the motor starts, drive gear 1-13 drives guide disk 1-7 to rotate.

[0045] like Figure 1 As shown, according to one embodiment of the present invention, multiple inner supporting circular components are arranged along the axial direction of the short cylinder (i.e., perpendicular to the circular base 1-1). Multiple inner supporting circular columns 1-4 are arranged between two adjacent inner supporting circular components to support the inner supporting circular components.

[0046] In this embodiment, multiple inner supporting circular components (e.g., three inner supporting circular components) simultaneously support the inner side of the short cylinder from inside the short cylinder along the axial direction of the short cylinder, which can improve the shape accuracy of the short cylinder.

[0047] like Figure 7 As shown, according to one embodiment of the present invention, in addition to the inner supporting circular component, the inner supporting fixture also includes a rotating mechanism. The rotating mechanism includes a rotating mechanism base 1-5 and a driven gear 1-6, which supports the disc base 1-1 and the bottom of the short cylinder. The driven gear 1-6 is rotatably disposed relative to the rotating mechanism base 1-5 to drive the disc base 1-1 and the short cylinder to rotate.

[0048] In this embodiment, the internal support fixture drives the disc base 1-1 and the short cylinder to rotate via the driven gear 1-6, thereby controlling the welding position of the stringer on the outer side of the short cylinder.

[0049] According to one embodiment of the present invention, for example, in addition to the rotating mechanism base 1-5 and the driven gear 1-6, the rotating mechanism may also include a driving gear 1-14, which meshes with the driven gear 1-14. The driving gear 1-14 can be connected to a motor. When the motor starts, it drives the driving gear 1-14 to rotate the driven gear 1-6.

[0050] like Figure 1 As shown, according to one embodiment of the present invention, in addition to the inner support circular component, the inner support fixture also includes an inner support column 1-10 and an inner support mechanism for the column. The inner support column 1-10 is used to be placed inside the short cylinder, and the inner support mechanism for the column is disposed on the circumferential side of the inner support column 1-10 to support the inner side of the short cylinder.

[0051] like Figure 1 As shown, according to one embodiment of the present invention, the column inner support mechanism includes an inner support column drive cylinder 1-11 and a column inner support plate 1-12 arranged along the radial direction of the disc base 1-1 (i.e., perpendicular to the axial direction of the inner support column 1-10). The column inner support plate 1-12 is connected to the telescopic rod of the inner support column drive cylinder 1-11. By extending and retracting the telescopic rod of the inner support column drive cylinder 1-11, the column inner support plate 1-12 is driven towards or away from the inner side of the short cylinder.

[0052] In this embodiment, the telescopic rod of the inner support column drive cylinder 1-11 extends and retracts to support or release the inner side of the short cylinder using the inner support plate 1-12. The inner support plate 1-12 is used to support the welding position between the stringer and the short cylinder. For example, the inner support column 1-10 can be located in the middle of the disc base 1-1 and perpendicular to the disc base 1-1. The disc base 1-1, guide disc 1-7, rotating mechanism base 1-5, and driven gear 1-6 are rotatably connected to or spaced apart from the inner support column 1-10. That is, when the rotating mechanism drives the disc base 1-1 and the short cylinder to rotate, the inner support column 1-10 and the inner support mechanism do not rotate accordingly. For example, a set of inner support mechanisms is provided between two adjacent inner support circular components.

[0053] According to one embodiment of the present invention, for example, the lower end of the inner support column 1-10 can be connected to the ground or to equipment fixed on the ground (e.g., such as...). Figure 7 The inner support base 1-15 shown is fixedly connected.

[0054] The above embodiments of this utility model can be combined with each other and have corresponding technical effects.

[0055] 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. An inner supporting tool for welding the outer stringer of the short cylinder of a stainless steel storage tank, characterized in that, The application relates to a supporting and rounding device for a short cylinder, which comprises the following parts: a supporting and rounding part; the supporting and rounding part comprises a disc base, and a plurality of supporting and rounding mechanisms are arranged on the disc base in the circumferential direction of the disc base; the supporting and rounding mechanisms are movably arranged along the radial direction of the disc base and are arranged to approach or move away from the short cylinder to support and round the short cylinder from the inside of the short cylinder.

2. The internal bolster tooling of claim 1, wherein, the supporting and rounding mechanisms comprise supporting and rounding guide rods and supporting and rounding plates, the supporting and rounding guide rods are movably arranged along the radial direction of the disc base, the supporting and rounding plates are connected with the supporting and rounding guide rods, and the supporting and rounding guide rods drive the supporting and rounding plates to approach or move away from the short cylinder by moving along the radial direction of the disc base.

3. The internal bolster tooling of claim 2, wherein, a plurality of disc linear guides are arranged on the disc base in the circumferential direction of the disc base, the supporting and rounding guide rods are fixedly connected with the sliders of the disc linear guides, and the supporting and rounding guide rods are driven to move along the disc linear guides by the sliders of the disc linear guides.

4. The internal bolster tooling of claim 2, wherein, the supporting and rounding part further comprises a guide driving part; the guide driving part comprises a guide disc; the guide disc is arranged on the disc base and is rotatably arranged relative to the disc base; a plurality of guide grooves corresponding to the supporting and rounding mechanisms are arranged on the guide disc in the circumferential direction of the guide disc; the distance between the guide grooves and the center of the guide disc increases along the circumferential direction of the guide disc; a guide column is arranged on the end surface of the supporting and rounding guide rod close to the guide disc, one end of the guide column is arranged in the guide groove, and the guide column is slidably arranged relative to the guide groove; the guide groove drives the guide column to move along the radial direction of the disc base by rotating the guide disc relative to the disc base.

5. The internal bolster tooling of claim 4, wherein, the disc base is provided with a driving gear, the driving gear is meshingly arranged with the guide disc, and the guide disc is driven to rotate relative to the disc base by rotating the driving gear.

6. The internal bolster tooling of claim 1, wherein, a plurality of the supporting and rounding parts are arranged in the axial direction, and a plurality of supporting and rounding vertical columns are arranged between two adjacent supporting and rounding parts to support the supporting and rounding parts.

7. The internal bolster tooling of claim 1, wherein, the application further comprises a rotating mechanism; the rotating mechanism comprises a rotating mechanism base and a driven gear, the driven gear is used for supporting the disc base and the bottom of the short cylinder, and the driven gear is rotatably arranged relative to the rotating mechanism base to drive the disc base and the short cylinder to rotate.

8. The internal bolster tooling of claim 7, wherein, the rotating mechanism further comprises a driving gear, the driving gear is meshingly arranged with the driven gear, the driving gear is connected with a motor, and the motor drives the driving gear to rotate.

9. The internal bolster tooling of claim 1, wherein, the application further comprises a supporting vertical column and a vertical column supporting mechanism; the supporting vertical column is used for being placed in the short cylinder, and the vertical column supporting mechanism is arranged on the circumferential side of the supporting vertical column to support the inner side of the short cylinder.

10. The internal bolster tooling of claim 9, wherein, the vertical column supporting mechanism comprises a supporting vertical column driving cylinder and a vertical column supporting plate, the vertical column supporting plate is connected with the telescopic rod of the supporting vertical column driving cylinder, and the vertical column supporting plate is driven to face or move away from the inner side of the short cylinder by the telescopic rod of the supporting vertical column driving cylinder.

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