Adjustable truss structure assembly tool and assembly method thereof

Abstract

The present invention discloses an adjustable truss structure assembly tool and an assembly method thereof, which relate to the field of aerospace technology, including a base, a connecting shaft vertically arranged at the center of the base, an upper connecting plate arranged on the connecting shaft, a support assembly connected to the base and the upper connecting plate at both ends, a first replaceable interface arranged on the base for fixing the truss structure, and a second replaceable interface arranged on the upper connecting plate for fixing the truss structure. The support rod assembly includes a support seat fixed at the edge of the base, a support rod fixed above the support seat, and an adjustment part with adjustable height arranged above the support rod, and an upper connecting plate positioning pin hole for adjusting the height of the upper connecting plate is provided on the connecting shaft. The present invention can be adjusted according to the actual design size of the truss structure to meet the installation and adjustment requirements of truss structures of different design sizes, has high adjustment efficiency, strong versatility, improves work efficiency, and saves costs.

Description

Technical Field

[0001] The present invention relates to the field of aerospace technology, and in particular to an adjustable truss structure assembly tool and an assembly method thereof. Background Art

[0002] In recent years, truss structures (primarily steel frames or rod-based structures) have gained increasing attention in the aerospace field, with numerous examples of their application in space remote sensing systems abroad. There are also reports of truss structures being used in optical remote sensing cameras in China, though these structures are relatively simple, mostly consisting of three- or four-rod rigid frames supporting the secondary mirror assembly of space cameras. Compared to traditional cylindrical structures, truss structures offer significant advantages in terms of weight and rigidity. However, the design and manufacturing process for truss structures is more complex, requiring consideration of numerous factors.

[0003] Existing truss structures in the aerospace field are designed in different sizes. Spacecraft are basically produced in single pieces or small batches, and manual assembly and adjustment work accounts for the majority of the work. In addition, due to the widespread phenomenon of design changes during product development, if the tooling does not have adjustable capabilities, it may lead to a lot of waste of time and cost in the manufacturing process.

[0004] Therefore, it is necessary to design an adjustable truss structure assembly tool with simple structure and high versatility. Summary of the Invention

[0005] In view of the above problems in the prior art, the present invention provides an adjustable truss structure assembly tool and an assembly method thereof with simple structure and high versatility, which are used for assembling truss structures of different design sizes.

[0006] To achieve the above object, the technical solution adopted by the present invention is:

[0007] An adjustable truss structure assembly tool comprises a base, a connecting shaft vertically arranged at the center of the base, an upper connecting plate arranged on the connecting shaft, a support assembly with the base and the upper connecting plate respectively connected at both ends, a first replaceable interface for fixing the truss structure arranged on the base, and a second replaceable interface for fixing the truss structure arranged on the upper connecting plate. The support assembly comprises a support seat fixed at the edge of the base, a support rod fixed above the support seat, and an adjustment part with adjustable height arranged above the support rod. The connecting shaft is provided with an upper connecting plate positioning pin hole for adjusting the height of the upper connecting plate.

[0008] Preferably, the base is provided with a plurality of groups of base positioning pin holes and base connecting holes along the radial direction of the base for installing the first replaceable interface and the support seat.

[0009] Preferably, the upper connecting plate includes a sleeve mounted on the connecting shaft, a plurality of connecting rods radially arranged along the sleeve, and grid ribs connecting the connecting rods.

[0010] Preferably, the shaft sleeve is provided with a plurality of fixing pin holes for fixing the upper connecting plate.

[0011] Preferably, the first replaceable interface and the second replaceable interface are connectors with different interfaces and different thicknesses designed according to truss structures of different sizes.

[0012] A method for assembling an adjustable truss structure assembly tool comprises the following steps:

[0013] Step S1: Adjust the assembly tooling according to the design dimensions of the truss: adjust the position of the upper connection plate through the connecting shaft, install the first replaceable interface and the second replaceable interface that match the truss structure, and adjust the adjustment portion on the support assembly until the tooling is adjusted to the design dimensions of the truss structure.

[0014] Step S2: Installing the truss structure on the tooling: adjusting the length of the rods of the truss structure, adjusting the gap between the rods of the truss structure and the joints, and installing the truss structure on the tooling;

[0015] Step S3: Fixing the truss structure: When the installed truss structure is in a stress-free state, glue is applied to the joints of the truss structure for bonding. During the curing process of the glue, the truss structure is ensured to remain fixed on the fixture.

[0016] Step S4: Disassembling the tooling: releasing the second replaceable interface from the truss structure, removing the upper connecting plate from the connecting shaft, then removing the supporting assembly, and finally releasing the first replaceable interface on the base from the truss structure;

[0017] Step S5: taking out the assembled truss structure.

[0018] Due to the adoption of the above technical solution, compared with the prior art, the beneficial effects of the present invention are:

[0019] 1. The adjustable truss structure assembly tool of the present invention can be adjusted according to the actual design size of the truss structure to meet the assembly and adjustment requirements of truss structures of different design sizes.

[0020] 2. The assembly method of the adjustable truss structure assembly tool of the present invention has high installation and adjustment efficiency, strong versatility, improved work efficiency and saved costs.

[0021] 3. The adjustable truss structure assembly tool of the present invention has a simple structure, is easy to assemble, and has low maintenance costs. BRIEF DESCRIPTION OF THE DRAWINGS

[0022] By referring to the following description in conjunction with the accompanying drawings, and with a more complete understanding of the present invention, other objects and results of the present invention will become more clear and easy to understand. In the accompanying drawings:

[0023] Figure 1 It is the truss structure of a certain type of domestic space camera;

[0024] Figure 2 It is a structural diagram of an example of the present invention;

[0025] Figure 3 It is a structural diagram of an adjustment component of an example of the present invention;

[0026] Figure 4 This is an example of the present invention assembly Figure 1 Structural diagram of the truss structure;

[0027] The figure marks include: base 1, base positioning pin hole 11, base connecting hole 12, connecting shaft 2, upper connecting plate positioning pin hole 21, upper connecting plate 3, sleeve 31, fixing pin hole 311, connecting rod 32, grid rib 33, support assembly 4, support seat 41, support rod 42, adjustment part 43, first replaceable interface 5, second replaceable interface 6, truss structure 7, rod 71, joint 72. DETAILED DESCRIPTION

[0028] The following will clearly and completely describe the technical solutions of various embodiments of the present invention in conjunction with the accompanying drawings. Obviously, the embodiments described are only some embodiments of the present invention, not all embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without making any creative efforts are within the scope of protection of the present invention.

[0029] In the description of the present invention, it should be noted that the terms "center," "upper," "lower," "left," "right," "vertical," "horizontal," "inner," and "outer," etc., indicating orientations or positional relationships, are based on the orientations or positional relationships shown in the accompanying drawings and are intended solely to facilitate and simplify the description of the present invention. They are not intended to indicate or imply that the devices or components referred to must have a specific orientation, be constructed, or operate in a specific orientation. Therefore, they should not be construed as limitations on the present invention. Furthermore, the terms "first," "second," and "third" are used for descriptive purposes only and should not be construed as indicating or implying relative importance.

[0030] In the description of the present invention, it should be noted that, unless otherwise expressly specified or limited, the terms "installed," "connected," and "connected" should be understood broadly. For example, they can refer to fixed connections, detachable connections, or integral connections; they can refer to mechanical connections or electrical connections; they can refer to direct connections or indirect connections through an intermediate medium; and they can refer to internal connections between two components. It should be noted that all figures are illustrative only. Those skilled in the art will understand the specific meanings of the above terms in the present invention based on the specific circumstances.

[0031] The present invention will be further described in detail below through specific implementation examples in conjunction with the accompanying drawings.

[0032] Reference Figure 4 , an adjustable truss structure assembly tool, including a base 1, a connecting shaft 2, an upper connecting plate 3, a supporting assembly 4, a first replaceable interface 5, and a second replaceable interface 6; the base 1 mainly plays the role of counterweight and providing a reference, so the upper surface of the base 1 should ensure a certain accuracy, the connecting shaft 2 is vertically arranged at the center of the base 1, and the connecting shaft 2 mainly plays the role of supporting the upper connecting plate 3 and the base 1, and can also ensure the coaxiality of the upper connecting plate 3 and the base 1, the upper connecting plate 3 is arranged on the connecting shaft 2 and can move up and down along the connecting shaft 2, one end of the supporting assembly 4 is fixedly arranged on the base 1, and the other end of the supporting assembly 4 is connected to the upper connecting plate 3, the first replaceable interface 5 is arranged on the base 1 for fixing the truss structure, and the second replaceable interface 6 is arranged on the upper connecting plate 3 for fixing the truss structure, the first replaceable interface 5 and the second replaceable interface 6 are connectors with different interfaces and different thicknesses designed according to truss structures of different sizes.

[0033] Reference Figure 2The base 1 is provided with multiple sets of base positioning pin holes 11 and base connection holes 12 along the radial direction of the base 1 for mounting the first replaceable interface 5 and the support base 41. The connecting shaft 2 is provided with upper connecting plate positioning pin holes 21 for adjusting the height of the upper connecting plate 3. The multiple levels of upper connecting plate positioning pin holes 21 reserved on the connecting shaft 2 are used to adjust the height of the upper connecting plate 3, thereby realizing a height-adjustable function. The upper connecting plate 3 includes a sleeve 31, a connecting rod 32, and a grid rib 33. The sleeve 31 is mounted on the connecting shaft 2. Multiple connecting rods 32 are radially arranged along the sleeve 31. The grid rib 33 connects multiple connecting rods 32. The main function of the upper connecting plate 3 is to provide an installation position for the second replaceable interface 6. The grid structure of the upper connecting plate 3 is, on the one hand, to improve the rigidity of the upper connecting plate 3, and on the other hand, to reduce the deformation caused by its own weight. The sleeve 31 is also provided with multiple fixing pin holes 311 for fixing the upper connecting plate 3. The height position of the upper connecting plate 3 is adjusted by inserting and removing the fixing pins from the upper connecting plate positioning pin holes 21 and the fixing pin holes 311.

[0034] Reference Figure 3 The support assembly 4 is primarily used for auxiliary support and can be replaced according to the height of the truss structure. The support assembly 4 comprises a support base 41 fixed to the edge of the base 1, a support rod 42 fixed above the support base 41, and an adjustable height adjustment portion 43 disposed above the support rod 42. As shown, the adjustment portion 43 is threadedly connected to the support rod 42, but the adjustment portion 43 may also be a threaded jack or other height-adjustable structure.

[0035] A method for assembling an adjustable truss structure assembly tool comprises the following steps:

[0036] Step S1: Adjust the assembly tooling according to the design dimensions of the truss, specifically by adjusting the position of the upper connecting plate 3 via the connecting shaft 2, installing the first replaceable interface 5 and the second replaceable interface 6 that match the truss structure, and adjusting the adjustment portion 43 on the support assembly 4 until the tooling is adjusted to the design dimensions of the truss structure 7. By adjusting the height of the upper connecting plate 3 on the connecting shaft 2 and the thickness of the first replaceable interface 5 and the second replaceable interface 6, the truss structure can basically be adjusted to the appropriate size. However, the truss structure usually has high requirements for dimensional accuracy during the design process. In this case, the height of the plane of the upper connecting plate 3 and the form and position tolerances of the connection surface with the base 1 can be fine-tuned through the adjustment portion 43 that contacts the upper connecting plate 3.

[0037] Step S2: installing the truss structure 7 on the tooling, specifically adjusting the length of the rods 71 ​​of the truss structure 7 and the gap between the rods 71 ​​of the truss structure 7 and the joints 72, and installing the truss structure 7 on the tooling.

[0038] Step S3: Fix the truss structure 7. When confirming that the truss structure 7 is in a stress-free state after installation, apply glue to the joints 72 of the truss structure 7 for bonding. During the curing process of the glue, ensure that the truss structure 7 does not move on the fixture.

[0039] Step S4: disassembling the tooling, specifically releasing the fixation between the second replaceable interface 6 and the truss structure, removing the upper connecting plate 3 from the connecting shaft 2, then removing the supporting assembly 4, and finally releasing the fixation between the first replaceable interface 5 on the base 1 and the truss structure.

[0040] Step S5: taking out the assembled truss structure 7.

[0041] The following will refer to Figures 1 to 4 The working principle of the present invention is described.

[0042] The adjustable truss structure assembly tool of the present invention first designs the first and second interchangeable interfaces 5 and 6 that match the truss structure. The position of the upper connecting plate 3 is adjusted via the connecting shaft 2. The first and second interchangeable interfaces 5 and 6 are installed. The adjustment portion 43 on the support assembly 4 is adjusted until the tool is adjusted to the designed dimensions of the truss structure 7. Second, the truss structure 7 is installed on the tool, specifically by adjusting the length of the rods 71 ​​of the truss structure 7 and the gap between the rods 71 ​​and the joints 72 of the truss structure 7, and then installing the truss structure 7 on the tool. Third, the truss structure 7 is secured. After confirming that the truss structure 7 is in a stress-free state after installation, glue is applied to the joints 72 of the truss structure 7 to bond them. The glue cures while the truss structure 7 remains fixed on the tool. Fourth, the tool is disassembled, specifically by releasing the second interchangeable interface 6 from the truss structure, removing the upper connecting plate 3 from the connecting shaft 2, then removing the support assembly 4, and finally releasing the first interchangeable interface 5 on the base 1 from the truss structure. Finally, the assembled truss structure 7 is taken out.

[0043] The above are merely specific embodiments of the present invention, but the scope of protection of the present invention is not limited thereto. Any modifications or substitutions that can be easily conceived by a person skilled in the art within the technical scope disclosed in the present invention should be included within the scope of protection of the present invention. Therefore, the scope of protection of the present invention should be based on the scope of protection of the claims.

Claims

1. An adjustable truss structure assembly tool, characterized in that:

4. The repairing kit for automotive dents, according to claim 1, wherein a bottom of the foot stand comprises a through-hole, and the two foot pieces comprise two bosses, wherein the bosses comprise a through-hole, a screw bolt, and a nut. The through-hole, the bosses comprise a through-hole, a screw bolt, and a nut. The through-hole, the bosses comprise a through-hole, a screw bolt, and a nut.

2. The assembly method of an adjustable truss structure assembly tool according to claim 1, characterized in that: The following steps are involved: Step S1: Adjust the assembly tooling according to the design dimensions of the truss: adjust the position of the upper connection plate through the connecting shaft, install the first replaceable interface and the second replaceable interface that match the truss structure, and adjust the adjustment portion on the support assembly until the tooling is adjusted to the design dimensions of the truss structure. Step S2: Installing the truss structure on the tooling: adjusting the length of the rods of the truss structure, adjusting the gap between the rods of the truss structure and the joints, and installing the truss structure on the tooling; Step S3: Fixing the truss structure: When the installed truss structure is in a stress-free state, glue is applied to the joints of the truss structure for bonding. During the curing process of the glue, the truss structure is ensured to remain fixed on the fixture. Step S4: Disassembling the tooling: releasing the second replaceable interface from the truss structure, removing the upper connecting plate from the connecting shaft, then removing the supporting assembly, and finally releasing the first replaceable interface on the base from the truss structure; Step S5: taking out the assembled truss structure.

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