Clamping tool for welding short tube stringer of stainless steel storage box

Abstract

The utility model provides a clamping tool for welding a short tube stringer of a stainless steel storage box. The clamping tool comprises an external pressing stand column and a clamping component, the clamping part is arranged on the side face of the external pressing stand column. The clamping component is used for clamping the stringer and pressing the stringer to the circumferential side face of the short cylinder so that the short cylinder and the stringer can be welded. The clamping tool can clamp the stringer and tightly press the stringer to the circumferential side face of the short cylinder.

Description

Technical Field

[0001] This utility model relates to the field of launch vehicle storage tanks, specifically to a clamping fixture for welding short cylindrical stringers of stainless steel storage tanks. 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 short cylinder and stringers of stainless steel rocket propellant tanks, it is particularly important to design a clamping fixture for welding the stringers of the short cylinder of stainless steel propellant tanks. Utility Model Content

[0004] The purpose of this utility model is to overcome the shortcomings of the prior art and provide a clamping fixture for welding short cylindrical stringers of stainless steel storage tanks.

[0005] This utility model provides a clamping fixture for welding short cylindrical stringers of stainless steel storage tanks, comprising: an external pressure column and a clamping component; the clamping component is disposed on the side of the external pressure column; the clamping component is used to clamp the stringers and press the stringers to the circumferential side of the short cylinder for welding the short cylinder and the stringers.

[0006] According to one embodiment of the present invention, a clamping linear guide rail is further provided at one end of the external pressure column. The external pressure column is slidably disposed relative to the clamping linear guide rail. The external pressure column drives the clamping component to move closer to or away from the circumferential side of the short cylinder by sliding along the clamping linear guide rail.

[0007] According to one embodiment of the present invention, the clamping component includes two clamping arms; in the horizontal direction perpendicular to the external pressure column, one end of the clamping arm is slidably disposed relative to the external pressure column, and the other end of the two clamping arms clamps or releases the stringer by moving one end closer to or further away from each other.

[0008] According to one embodiment of the present invention, a support is provided on the side of the external pressure column, and a support plate is provided on each of the two opposite sides of the support; each support plate is provided with a clamping slider that can slide relative to it, and the clamping slider is connected to one end of the clamping arm; by sliding the clamping slider, the two clamping arms are driven to move away from each other or closer to each other.

[0009] According to one embodiment of the present invention, the clamping component further includes a clamping drive cylinder and two pull rods; the clamping drive cylinder is arranged along the height direction of the external pressure column; the telescopic rod of the clamping drive cylinder passes through the support and is slidably arranged relative to the support; one end of the pull rod is rotatably connected to the circumferential side of the telescopic rod of the clamping drive cylinder; the other end of the pull rod is rotatably connected to the clamping slider; by extending and retracting the telescopic rod of the clamping drive cylinder, one end of the pull rod is driven to move up and down, so that the other end of the pull rod drives the two clamping sliders to move closer to each other or further away from each other.

[0010] According to one embodiment of the present invention, the vertical cross-section of the clamping slider is I-shaped; the support plate is provided with a clamping guide groove, and the clamping slider is slidably disposed relative to the clamping guide groove.

[0011] According to one embodiment of the present invention, two corresponding support arms are provided on the circumferential sidewall of the telescopic rod of the clamping drive cylinder; a rotating shaft is provided at one end of the two support arms away from the telescopic rod of the clamping drive cylinder, and one end of the pull rod is rotatably connected to the rotating shaft.

[0012] According to one embodiment of the present invention, the external pressure column is provided with multiple supports along its height direction; the circumferential side of the telescopic rod of the clamping drive cylinder is provided with multiple sets of the pull rods and the clamping arms corresponding to the supports.

[0013] According to one embodiment of the present invention, the upper end of the external pressure column is provided with a top plate extending towards the short cylinder; the driving cylinder of the clamping driving cylinder is provided on the top plate.

[0014] According to one embodiment of the present invention, it further includes a welding component; a base plate extending towards the short cylinder is provided at the lower end of the external pressure column; a welding column is provided between the top plate and the base plate; the welding component is slidably disposed relative to the welding column along its height direction to weld the entire stringer.

[0015] According to the present invention, a clamping fixture for welding short cylindrical stringers of stainless steel storage tanks can clamp the stringers and press them against the circumferential side of the short cylinder.

[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 1This is a perspective view of a clamping fixture for welding short cylindrical stringers of a stainless steel storage tank in an unclamped state, according to an embodiment of the present invention.

[0019] Figure 2 This is a perspective view of a clamping fixture for welding short cylindrical stringers of a stainless steel storage tank, according to an embodiment of the present invention, showing the stringers being clamped.

[0020] Figure 3 This is a perspective view of a clamping fixture for welding short cylindrical stringers of a stainless steel storage tank, according to an embodiment of the present invention.

[0021] Figure 4 This is a perspective view of a clamping linear guide rail according to an embodiment of the present invention;

[0022] Figure 5 This is a perspective view of a clamping slider according to an embodiment of the present invention;

[0023] Figure 6 yes Figure 2 A 3D diagram of A in the middle;

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

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

[0026] 2-1 External pressure column; 2-2 Support; 2-3 Support plate; 2-4 Clamping slider; 2-5 Clamping drive cylinder; 2-6 Tie rod; 2-7 Clamping arm; 2-8 Top plate; 2-9 Bottom plate; 2-10 Welding column; 2-11 Clamping guide groove; 2-12 Support arm; 2-13 Rotating shaft; Clamping linear guide rail; 2-14; Y-axis slider; 3-1; Welding head; 3-2; X-axis slider; 3-3; 3 Welding components. 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 a clamping fixture for welding short cylindrical stringers of a stainless steel storage tank in an unclamped state, according to an embodiment of the present invention. Figure 2 This is a perspective view of a clamping fixture for welding short cylindrical stringers of a stainless steel storage tank, according to an embodiment of the present invention, showing the stringers being clamped.

[0034] Figure 3 This is a perspective view of a clamping fixture for welding short cylindrical stringers of a stainless steel storage tank, according to an embodiment of the present invention. Figure 4 This is a perspective view of a clamping linear guide rail according to an embodiment of the present invention; Figure 5 This is a perspective view of a clamping slider according to an embodiment of the present invention; Figure 6 yes Figure 2 A 3D diagram of A in the middle; Figure 7 This is a perspective view of a welding component according to an embodiment of the present invention.

[0035] like Figure 1-3 As shown, this utility model provides a clamping fixture for welding short cylindrical stringers of stainless steel storage tanks, including: an external pressure column 2-1 and a clamping component. The clamping component is disposed on the side of the external pressure column 2-1. The clamping component is used to clamp the stringers and press them against the circumferential side of the short cylinder for welding the short cylinder and the stringers.

[0036] In this embodiment, the clamping component can clamp the stringer and press it against the circumferential side of the short cylinder for welding the short cylinder and the stringer. This clamping fixture can be placed inside or outside the short cylinder, pressing the stringer against the inner or outer side of the short cylinder for welding. For example, the clamping component can be located on the side of the external pressure column 2-1 facing the short cylinder.

[0037] like Figure 4 As shown, according to one embodiment of the present invention, in addition to the external pressure column 2-1 and the clamping component, the clamping fixture also includes a clamping linear guide rail 2-14 disposed at one end of the external pressure column 2-1. The external pressure column 2-1 is slidably disposed relative to the clamping linear guide rail 2-14, and the external pressure column 2-1 drives the clamping component to move closer to or away from the circumferential side of the cylinder by sliding along the clamping linear guide rail 2-14.

[0038] In this embodiment, for example, the clamping linear guide 2-14 can be fixedly mounted on the ground or a device fixed on the ground, and the clamping linear guide 2-14 is arranged along the radial direction of the short cylinder. The external pressure column 2-1 can be fixedly connected to the slider of the clamping linear guide 2-14, and the external pressure column 2-1 is driven towards or away from the circumferential side of the short cylinder by the slider of the clamping linear guide 2-14. For example, the clamping component can be a device similar to a gripper.

[0039] like Figure 1-3 As shown, according to one embodiment of the present invention, the clamping component includes two clamping arms 2-7. In the horizontal direction perpendicular to the external pressure column 2-1, one end of the clamping arm 2-7 is slidably disposed relative to the external pressure column 2-1. By moving one end of the two clamping arms 2-7 closer to or further away from each other, the other end of the clamping arm 2-7 can clamp or release the stringer.

[0040] In this embodiment, one end of the clamping arm 2-7 is slidably disposed relative to the external pressure column 2-1, and the other ends of the two clamping arms cooperate to clamp the stringer. For example, the two clamping arms 2-7 are arranged parallel to each other on a horizontal plane.

[0041] According to one embodiment of this utility model, a support 2-2 is provided on the side of the external pressure column 2-1, and a support plate 2-3 is provided on each of the two opposite sides of the support 2-2. Each support plate 2-3 is provided with a clamping slider 2-4 that can slide relative to it, and the clamping slider 2-4 is connected to one end of the clamping arm 2-7. By sliding the clamping slider 2-4, the two clamping arms 2-7 are moved closer to each other or further apart.

[0042] In this embodiment, for example, the external pressure column 2-1 is provided with a support on the side facing the short cylinder.

[0043] According to one embodiment of this utility model, in addition to the clamping arm 2-7, the clamping component also includes a clamping drive cylinder 2-5 and two pull rods 2-6. The clamping drive cylinder 2-5 is arranged along the height direction of the external pressure column 2-1. The telescopic rod of the clamping drive cylinder 2-5 passes through the support 2-2 and is slidably arranged relative to the support 2-2. One end of the pull rod 2-6 is rotatably connected to the circumferential side of the telescopic rod of the clamping drive cylinder 2-5. The other end of the pull rod 2-6 is rotatably connected to the clamping slider 2-4. By extending and retracting the telescopic rod of the clamping drive cylinder 2-5, one end of the pull rod 2-6 is driven to move up and down, causing the other end of the pull rod 2-6 to drive the two clamping sliders 2-4 to move away from or towards each other.

[0044] In this embodiment, the up-and-down movement of one end of the pull rod 2-6 will cause the clamping slider 2-4 connected to the other end of the pull rod 2-6 to slide relative to the support plate 2-3.

[0045] like Figure 5 As shown, according to one embodiment of the present invention, for example, the vertical cross-section of the clamping slider 2-4 can be I-shaped. The support plate 2-3 is provided with a clamping guide groove 2-11, and the clamping slider 2-4 is slidably disposed relative to the clamping guide groove 2-11.

[0046] In this embodiment, the clamping slider 2-4 is designed in the shape of an I-beam, and the two ends of the I-beam cooperate with the support plate 2-3 to limit the clamping slider 2-4 in the height direction.

[0047] As shown in Figure 6, according to one embodiment of the present invention, for example, two corresponding support arms 2-12 are provided on the circumferential sidewall of the telescopic rod of the clamping drive cylinder 2-5. A rotating shaft 2-13 is provided at the end of the two support arms 2-12 away from the telescopic rod of the clamping drive cylinder 2-5. One end of the pull rod 2-6 is rotatably connected to the rotating shaft 2-13.

[0048] like Figure 1-3 As shown, according to one embodiment of the present invention, the external pressure column 2-1 is provided with multiple supports 2-2 along its height direction. Multiple sets of tie rods 2-6 and clamping arms 2-7 corresponding to the supports 2-2 are provided on the circumferential side of the clamping drive cylinder.

[0049] In this embodiment, the telescopic rod of the clamping drive cylinder 2-5 passes through multiple supports 2-2 sequentially and can slide relative to the supports 2-2. By extending and retracting the telescopic rod of the clamping drive cylinder 2-5, one end of multiple sets of tie rods 2-6 moves up and down simultaneously, thereby causing multiple sets of clamping arms 2-7 to clamp or release the stringer simultaneously along the length of the stringer, ensuring the stability of the stringer and the welding quality during the welding process.

[0050] like Figure 3 As shown, according to one embodiment of the present invention, a top plate 2-8 extending towards the short cylinder is provided at the upper end of the external pressure column 2-1. The drive cylinder of the clamping drive cylinder 2-5 is provided on the top plate 2-8.

[0051] In this embodiment, for example, the drive cylinder for clamping drive cylinders 2-5 can be an electric cylinder. When the electric cylinder is activated, it drives the telescopic rod to extend or retract.

[0052] like Figure 3 As shown, according to one embodiment of the present invention, in addition to the external pressure column 2-1 and the clamping components, the clamping fixture also includes a welding component 3. A base plate 2-9 extending towards the short cylinder is provided at the lower end of the external pressure column 2-1. A welding column 2-10 is provided between the top plate 2-8 and the base plate 2-9. The welding component 3 is slidably disposed relative to the welding column 2-10 along its height direction to weld the entire stringer.

[0053] In this embodiment, the welding component 3 can move up and down relative to the welding column 2-10, allowing the welding head of the welding component 3 to weld the stringer along the length of the stringer (e.g., laser welding). For example, the base plate 2-9 can be slidably mounted to the clamping linear guide rails set on the ground to move closer to or further away from the welding position of the stringer and the short cylinder.

[0054] like Figure 7As shown, according to one embodiment of the present invention, the external pressure column 2-1 is provided with a lead screw along its height direction (i.e., the axial direction of the short cylinder). The welding component 3 includes a Z-axis slider 3-1, and a welding head 3-2 is disposed on the Z-axis slider 3-1. The Z-axis slider 3-1 is slidably disposed relative to the lead screw to drive the welding head 3-2 to move up and down (in the Z-axis direction).

[0055] According to one embodiment of the present invention, a Y-axis slider 3-3 is provided on the Z-axis slider 3-1, and a welding head is provided on the Y-axis slider 3-3. In the horizontal direction, the Y-axis slider 3-3 can slide relative to the Z-axis slider 3-1 in the vertical direction (Y-axis direction) of the short cylinder radial direction, so as to drive the welding head 3-2 to move horizontally.

[0056] According to one embodiment of the present invention, an X-axis slider 3-4 is provided on the Y-axis slider 3-3, and the welding head 3-2 is fixedly disposed on the X-axis slider 3-4. In the horizontal direction, the X-axis slider 3-4 can slide relative to the Y-axis slider 3-3 along the radial direction (X-axis direction) of the short cylinder, so as to face or move away from the welding position of the stringer and the short cylinder.

[0057] In this embodiment, the Z-axis direction is vertical. Horizontally, the X-axis direction is perpendicular to the Y-axis direction, and the Z-axis direction is perpendicular to both the X-axis and Y-axis directions. This welding system increases the welding freedom of the weld joint.

[0058] The above embodiments of this utility model can be combined with each other and have corresponding technical effects.

[0059] 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 clamping fixture for welding short cylindrical stringers of stainless steel storage tanks, characterized in that, include: An external pressure column and a clamping component; the clamping component is disposed on the side of the external pressure column; the clamping component is used to clamp the stringer and press the stringer against the circumferential side of the short cylinder for welding the short cylinder and the stringer.

2. The clamping fixture according to claim 1, characterized in that, It also includes a clamping linear guide rail disposed at one end of the external pressure column. The external pressure column is slidably disposed relative to the clamping linear guide rail. The external pressure column drives the clamping component to move closer to or away from the circumferential side of the short cylinder by sliding along the clamping linear guide rail.

3. The clamping fixture according to claim 1, characterized in that, The clamping component includes two clamping arms; in the horizontal direction perpendicular to the external pressure column, one end of the clamping arm is slidably disposed relative to the external pressure column, and the other end of the two clamping arms clamps or releases the stringer by moving one end of the two clamping arms closer to or further away from each other.

4. The clamping fixture according to claim 3, characterized in that, The external pressure column is provided with a support on its side, and a support plate is provided on each of the two opposite sides of the support; each support plate is provided with a clamping slider that can slide relative to it, and the clamping slider is connected to one end of the clamping arm; by sliding the clamping slider, the two clamping arms are moved closer to each other or further away from each other.

5. The clamping fixture according to claim 4, characterized in that, The clamping component further includes a clamping drive cylinder and two pull rods; the clamping drive cylinder is arranged along the height direction of the external pressure column; the telescopic rod of the clamping drive cylinder passes through the support and is slidably arranged relative to the support; one end of the pull rod is rotatably connected to the circumferential side of the telescopic rod of the clamping drive cylinder; the other end of the pull rod is rotatably connected to the clamping slider; by extending and retracting the telescopic rod of the clamping drive cylinder, one end of the pull rod is driven to move up and down, so that the other end of the pull rod drives the two clamping sliders to move away from or towards each other.

6. The clamping fixture according to claim 4, characterized in that, The vertical cross-section of the clamping slider is I-shaped; the support plate is provided with a clamping guide groove, and the clamping slider is slidably disposed relative to the clamping guide groove.

7. The clamping fixture according to claim 5, characterized in that, The telescopic rod of the clamping drive cylinder has two corresponding support arms on its circumferential sidewall; the two support arms have a rotating shaft at the end away from the telescopic rod of the clamping drive cylinder, and one end of the pull rod is rotatably connected to the rotating shaft.

8. The clamping fixture according to claim 5, characterized in that, The external pressure column is provided with multiple supports along its height direction; the circumferential side of the telescopic rod of the clamping drive cylinder is provided with multiple sets of pull rods and clamping arms corresponding to the supports.

9. The clamping fixture according to claim 5, characterized in that, The upper end of the external pressure column is provided with a top plate extending towards the short cylinder; the drive cylinder of the clamping drive cylinder is provided on the top plate.

10. The clamping fixture according to claim 9, characterized in that, It also includes welding components; a base plate extending towards the short cylinder is provided at the lower end of the external pressure column; a welding column is provided between the top plate and the base plate; the welding components are slidably arranged relative to the welding column along its height direction to weld the entire stringer.

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