Satellite rectangular truss cementing assembling tool and assembling and adjusting method

Abstract

The invention provides a cementing assembly tool for a rectangular truss of a satellite and an assembling and adjusting method, and belongs to the field of rectangular truss structures of satellites. The satellite rectangular truss cementing assembly tool comprises a basic cementing assembly platform, a plurality of sets of adjustable positioning stand columns, a positioning assembly and a stand column fine adjustment demolding tool. The multiple sets of positioning stand columns are vertically and integrally in a prism shape and are vertically arranged on the basic cementing assembly platform. The positioning assembly comprises a plurality of positioning blocks which are installed on the positioning stand columns and the foundation cementing assembly platform correspondingly. When the positioning stand column is installed on the foundation cementing assembly platform, adjustment and positioning are achieved through the stand column fine adjustment demolding tool. The basic cementing assembling platform and the positioning stand columns are provided with standard T-shaped groove connectors. According to the invention, the universality and expansibility are improved, the positioning precision and the disassembly and assembly convenience are ensured by utilizing the fine adjustment tool, and the high-precision and high-efficiency glue joint assembly of the large satellite rectangular truss is realized by matching with the adjustment of the multi-stage positioning block.

Description

Technical Field

[0001] This invention belongs to the field of satellite rectangular truss structures, specifically, it relates to a satellite rectangular truss adhesive bonding assembly tooling and assembly method, and in particular, a high-precision satellite carbon fiber rectangular truss adhesive bonding assembly tooling and assembly method. Background Technology

[0002] Rectangular truss structures for satellites are generally assembled by gluing together components such as members, joints, and structural plates, enabling lightweight, large-scale connections and diverse structural forms. Rectangular truss structures offer advantages such as light weight, high specific strength, high specific modulus, good designability, and strong resistance to deformation, making them a commonly used structural form in satellites. The traditional assembly and processing method for satellite composite material trusses generally involves first drilling holes individually in the composite material parts, pre-assembling them, gluing embedded parts, and then positioning and gluing the truss on a tooling fixture. The tooling fixture positions and installs the truss while providing rigid support, ensuring the dimensional accuracy of the truss and the positional accuracy of the joints after gluing.

[0003] However, existing tooling lacks versatility. Specialized tooling is often required for satellite truss products of different sizes and specifications, which significantly increases the development cycle and cost. In addition, some current applications require very high dimensional accuracy of the truss. Traditional tooling struggles to control the positioning accuracy and geometric tolerances of truss members and nodes. For high-precision, large-size trusses, there are also problems such as low assembly and adjustment efficiency and difficulty in controlling the accuracy of adhesive bonding assembly, making it difficult for existing ordinary tooling to meet the requirements.

[0004] Currently, the relevant existing technologies include: A Chinese patent application with publication number CN13263311A discloses a modular positioning system and its assembly method for rapid aircraft assembly. The modular positioning system includes a locator; a platform with several positioning slots; a column that positions itself within the slots; a mounting plate with several positioning holes arranged in an array, a base plate that positions itself within the mounting plate, and a second positioning hole on the base plate; a sliding rail support that slides within the base plate; and an adjustment component connected to both the locator and the sliding rail support, used for fine-tuning the locator's position. However, this system is complex, multi-layered, and inefficient, and is unsuitable for high-precision, large-size integrated adhesive bonding assembly scenarios. This solution employs a multi-level transfer positioning structure: "platform → positioning plate → column body → mounting plate → base plate → sliding rail support → adjustment component → locator." Each level of connection has gaps and assembly errors. After multiple levels are connected in series, the cumulative error transmitted to the locator (i.e., the product positioning point) increases significantly, making it difficult to meet the high-precision requirements of integral adhesive bonding for large satellite trusses. Furthermore, the cantilever design of its slide rail support leads to insufficient system stiffness. When the positioner is under load, the cantilever portion of the slide rail support will undergo bending and torsional deformation, which will translate into positioning errors. This makes it difficult to meet the bonding assembly requirements of large satellite trusses, which have extremely strict requirements for overall shape, position, and dimensional tolerances. Moreover, this technical solution only addresses simple component assembly and does not address the difficulties of bonding shape retention and demolding. Its pursuit of reconfigurable flexibility is not suitable for the absolute rigidity and stability of the bonding process, and is not suitable for bonding large composite material components. Summary of the Invention

[0005] To address the shortcomings of existing technologies, the purpose of this invention is to provide a satellite rectangular truss adhesive bonding assembly tooling and assembly method.

[0006] The satellite rectangular truss adhesive bonding assembly fixture provided by the present invention includes: a basic adhesive bonding assembly platform, multiple sets of positioning columns, positioning components, and column fine adjustment demolding fixture; The positioning column is vertically prismatic in shape and is arranged vertically on the basic adhesive assembly platform. The positioning component includes multiple positioning blocks, which are respectively installed on the positioning column and the basic adhesive assembly platform; When the positioning column is installed on the basic adhesive bonding assembly platform, the positioning column is adjusted and positioned by means of the column fine adjustment demolding tooling. The basic adhesive bonding assembly platform includes: a lower platform and an upper platform stacked together. The upper surface of the platform has multiple sets of orthogonally arranged T-shaped grooves for installing and adjusting the multiple sets of positioning columns, positioning components, and column fine-tuning demolding fixtures.

[0007] Preferably, the positioning column includes: a column body, a connecting corner piece, and a transition beam; The main body of the column is a quadrangular prism, and its bottom and top surfaces are provided with installation interfaces. The main body of the column is connected to the basic adhesive assembly platform through the installation interfaces. The transition beam is located on the side edge of the main column body; The transition beam is provided with a T-shaped groove, and the truss assembly is connected and fixed by providing an interface through the configuration of T-shaped nuts; The three sides of the main column are provided with through holes corresponding to the T-shaped groove interface of the transition beam. The number and distribution of the positioning columns are adjusted to match the truss structure; The bottom surface of the connecting corner piece is fixed to the base bonding assembly platform using fastening clamps, and the side of the connecting corner piece is fixedly connected to the column body using fasteners.

[0008] Preferably, the column fine-tuning demolding fixture includes: a baffle, a T-shaped connecting fixing seat, a first lead screw, and a second lead screw; The baffle and the T-shaped connecting fixing seat have an interface on their opposite sides. The baffle and the T-shaped connecting fixing seat are connected by the first screw and the second screw, and fixed with the connecting piece. The column fine-adjustment demolding fixture adjusts the position of the positioning column during truss installation by rotating the first and second lead screws. After the adhesive bonding assembly is completed, the truss and positioning column are separated by rotating the first and second lead screws.

[0009] Preferably, the positioning component comprises a first connecting positioning block, a second connecting positioning block, and a third connecting positioning block, all of which are provided with positioning pin holes and connection interfaces with positioning columns. The first connecting positioning block and the second connecting positioning block are installed on the transition beam of the positioning column through the positioning column connection interface. The third connecting positioning block is installed on the upper platform of the basic adhesive assembly platform and is installed in conjunction with the T-shaped groove opened on the upper surface of the upper platform.

[0010] Preferably, a fixed interface is provided between the lower platform and the upper platform to fix the two together; The basic adhesive bonding assembly platform is 3 to 6 meters long, 1.5 to 4 meters wide, and 0.3 to 0.5 meters high. The overall flatness of the upper surface of the upper platform is 0.03 to 0.05 mm; The T-slots on the upper surface of the platform are standard bidirectional T-slot interfaces, which accommodate T-nuts, with a T-slot spacing of 200 to 300 mm.

[0011] Preferably, the main body of the column has a cross-sectional dimension of 300mm×300mm and a height of 2m to 4m.

[0012] Preferably, each set of the column fine adjustment demolding fixture includes: a longer first lead screw and two shorter second lead screws, with the longer first lead screw positioned between the two shorter second lead screws.

[0013] A method for assembling and adjusting a satellite rectangular truss adhesive bonding assembly fixture provided by the present invention is characterized by comprising: Step S1: Initially position and install positioning columns on the basic adhesive bonding assembly platform; Step S2: Fine-adjust the position of the column by adjusting the demolding tooling, then remove the column fine-adjustment demolding tooling, and then fix the positioned column to the T-slot and / or the third connecting positioning block 8 in the base bonding assembly platform through the bottom or side interface. Step S3: The first connecting positioning block and the second connecting positioning block are connected to the T-shaped groove inside the transition beam. The first connecting positioning block and the second connecting positioning block are adjusted vertically along the transition beam. The first connecting positioning block and the second connecting positioning block are provided with pin holes or through holes to connect with the truss member joints. Step S4: Initial rough adjustment to ensure the overall flatness of the surfaces of the first and second connecting positioning blocks; Step S5: Before truss assembly, the form and position accuracy of the first connecting positioning block and the second connecting positioning block are further adjusted more precisely with the assistance of a laser tracker. When the truss is glued, it is connected to the pin holes or through holes on the first connecting positioning block and the second connecting positioning block with the pin holes or threaded holes on the truss members or joints. Step S6: After the truss is glued and assembled, the first lead screw rotates in the reverse direction to separate the baffle from the positioning column, leaving a demolding gap. Then, the second lead screw rotates in the forward direction to push out the positioning column, thus demolding it from the truss.

[0014] Compared with the prior art, the present invention has the following beneficial effects: 1. This invention increases the scalability and versatility of tooling by using modular components such as a basic adhesive bonding assembly platform and positioning columns, as well as standard T-slots. 2. This invention can achieve precise adjustment of the column position, ensure the accuracy of truss bonding assembly, and facilitate the removal of the column after bonding assembly; manual operation is convenient and quick, and bonding assembly efficiency is high. 3. This invention further ensures the positioning accuracy of truss members and nodes by setting up positioning components on the basis of coarse positioning; ultimately, it can achieve the dimensional accuracy of large rectangular trusses after gluing control within 0.2mm; 4. Compared with the prior art, the present invention has higher precision potential and stability, and is especially suitable for large-size, high-precision bonding. Attached Figure Description

[0015] Other features, objects, and advantages of the present invention will become more apparent from the following detailed description of non-limiting embodiments with reference to the accompanying drawings: Figure 1 This is a schematic diagram of the assembly of the satellite rectangular truss adhesive bonding assembly tooling of the present invention; Figure 2 This is a schematic diagram of the positioning column structure of the present invention; Figure 3 This is a schematic diagram of the column fine-tuning demolding tooling structure of the present invention.

[0016] The diagram shows: Detailed Implementation

[0017] The present invention will now be described in detail with reference to specific embodiments. These embodiments will help those skilled in the art to further understand the present invention, but do not limit the invention in any way. It should be noted that those skilled in the art can make several changes and improvements without departing from the concept of the present invention. These all fall within the protection scope of the present invention.

[0018] like Figure 1 As shown, this embodiment of the invention provides a satellite rectangular truss adhesive bonding assembly fixture, including: a basic adhesive bonding assembly platform, multiple sets of positioning columns, positioning components, and column fine adjustment and demolding fixture; Multiple sets of positioning columns, vertically arranged in a prismatic shape, are mounted on the base bonding assembly platform. The positioning assembly includes multiple positioning blocks, which are respectively installed on the positioning columns and the base bonding assembly platform. During installation on the base bonding assembly platform, the positioning columns are adjusted and positioned using a column fine-adjustment demolding fixture. Figure 1 As shown, the basic adhesive bonding assembly platform includes a lower platform 1 and an upper platform 2 stacked together, with a fixed interface connecting the lower platform 1 and the upper platform 2. Further, the upper surface of the upper platform 2 has multiple sets of orthogonally arranged T-slots, which can accommodate T-nuts; the basic adhesive bonding assembly platform provides the bottom flatness for truss adhesive bonding assembly. In a more specific embodiment, the basic adhesive bonding assembly platform is 3 to 6 m long, 1.5 to 4 m wide, and 0.3 to 0.5 m high; the overall flatness of the upper surface of the upper platform 2 is 0.03 to 0.05 mm; the T-slots of the upper platform 2 are standard bidirectional T-slot interfaces, with a T-slot spacing of 200 to 300 mm.

[0019] like Figure 3As shown, the positioning column includes: a column body 3, connecting corner pieces 5, and a transition beam 4. The column body 3 is a quadrangular prism with mounting interfaces on its bottom and top surfaces, allowing connection to the foundation bonding assembly platform. Three sides of the column body 3 have through holes corresponding to the T-slot interfaces of the transition beam 4, which is located on the side edges of the column body 3. Furthermore, the transition beam 4 has T-slots, providing interfaces for connecting and fixing the truss components using T-nuts. The number and distribution of positioning columns can be adjusted according to the truss structure. The connecting corner pieces 5 are fixed to the foundation bonding assembly platform using T-blocks, screws, nuts, and pressure plates, and are also fixed to the column body 3 on the sides using screws and other fasteners, stabilizing the overall bottom of the positioning column and providing support. In a more specific embodiment, the column body 3 has a cross-section of 300mm × 300mm and a height of 2m to 4m.

[0020] Furthermore, during fine adjustment, the baffle 3 used for fine adjustment acts on the side of the positioning column that needs to be pushed or pulled away, while the T-shaped connecting fixing seat 10 is fixed on the T-shaped groove of the upper platform 2 as a reaction fulcrum; at the bottom of the column body 3: the connecting corner piece 5 is fixed at the root of the column body 3. During fine adjustment, the connecting corner piece 5 of the column body 3 is in a sliding but not fully locked state. After the position of the column body 3 is adjusted, tightening the fastening clamps (T-block, screw, nut, pressure plate, nut) between the two clamps will fix the connecting corner piece 5 at the bottom of the column body 3, thereby fixing the column body 3. That is: in the fine adjustment process, the column body 3 is initially connected to the basic adhesive assembly platform through its bottom connecting corner piece 5 but is not fully pressed, maintaining a slightly sliding state. The T-shaped connecting fixing seat 10 of the column body fine adjustment demolding fixture is fixed at a predetermined position on the basic adhesive assembly platform. By synchronously or sequentially rotating the first lead screw 11 and the second lead screw 12, the rotational motion is converted into the linear micro-displacement of the baffle 9 through lead screw transmission, thereby precisely pushing or pulling the column body 3, driving the entire column body 3 to make fine adjustments to its position and orientation on the platform plane. After adjusting to the theoretical position, tightening the fastening clamp can press and fix the connecting corner piece 5 at the bottom of the column body 3. After the truss adhesive assembly is completed, the first lead screw 11 rotates in the reverse direction to separate the positioning baffle 9 from the positioning column, leaving a demolding gap. Then, rotating the second lead screw 12 in the forward direction can push out the positioning column, realizing demolding from the truss.

[0021] In an optional embodiment, such as Figure 1As shown, the height of the positioning column can be adjusted to different height values ​​according to the truss installation. When the length of the positioning column is longer to adapt to the positioning requirements of trusses of more than 3m, the bottom structure can be adjusted as needed. The transition corner piece 5 or corner code of different shapes and sizes can be replaced, and the working position and mechanical load application and dissipation characteristics of the bottom fixing structure can be appropriately adjusted to adapt to different truss tooling requirements. For example, the shape of the connecting corner piece 5 can be adjusted by relying on the stability of the triangular structure.

[0022] like Figure 1 and Figure 2 As shown, the column fine-adjustment demolding fixture includes: a baffle 9, a T-shaped connecting fixing seat 10, a first lead screw 11, and a second lead screw 12; the baffle 9 and the T-shaped connecting fixing seat 10 are provided with an interface on their opposite surfaces, and the baffle 9 and the T-shaped connecting fixing seat 10 are connected by the first lead screw 11 and the second lead screw 12, and fixed with nuts and other connecting parts; by rotating the first lead screw 11 and the second lead screw 12, the column fine-adjustment demolding fixture can accurately adjust the position of the positioning column when installing the truss. After the adhesive bonding assembly is completed, the truss and the positioning column can be separated by rotating the first lead screw 11 and the second lead screw 12. In a more specific embodiment, each set of column fine adjustment demolding fixture includes: a longer first lead screw 11 and two shorter second lead screws 12. The longer first lead screw 11 is disposed between the two shorter second lead screws 12 and serves to both rotate and adjust, and to connect the baffle 9 with the T-shaped connecting fixing seat 10. Further rotation of the first lead screw 11 and the second lead screw 12 can adjust the position of the positioning column.

[0023] Furthermore, the positioning component comprises multiple positioning blocks: a first connecting positioning block 6, a second connecting positioning block 7, and a third connecting positioning block 8, all of which are provided with positioning pin holes and positioning column connection interfaces. The first connecting positioning block 6 and the second connecting positioning block 7 are installed on the transition beam 4 of the positioning column via connecting parts such as positioning pins and positioning column connection interfaces. The third connecting positioning block 8 is installed on the upper platform 2 of the basic adhesive assembly platform. Specifically, in conjunction with the T-slots provided on the upper surface of the upper platform 2, the function of the multiple connecting positioning blocks of the positioning component is to provide pin holes or through holes to connect with the joint interfaces of the truss members, thereby positioning the truss joints and interfaces and ensuring the dimensional accuracy between the truss interfaces. The number of the first connecting positioning block 6, the second connecting positioning block 7, and the third connecting positioning block 8 is determined according to the truss interface.

[0024] Furthermore, embodiments of the present invention also provide an assembly and adjustment method for a satellite rectangular truss adhesive bonding assembly fixture provided by the present invention, comprising: Step S1: Initially position and install positioning columns on the basic adhesive bonding assembly platform; Step S2: Fine-adjust the position of the column by adjusting the demolding tooling, then remove the column fine-adjustment demolding tooling, and then fix the positioned column to the T-slot and / or the third connecting positioning block 8 in the base bonding assembly platform through the bottom or side interface. Step S3: The first connecting positioning block 6 and the second connecting positioning block 7 are connected to the T-shaped groove inside the transition beam 4. The first connecting positioning block 6 and the second connecting positioning block 7 can be adjusted vertically along the transition beam 4. The first connecting positioning block 6 and the second connecting positioning block 7 are provided with pin holes or through holes to be connected to the truss member joints. Step S4: Initial rough adjustment to ensure the overall flatness of the side surfaces of the first connecting positioning block 6 and the second connecting positioning block 7, thereby ensuring that the quality of the truss adhesive bonding assembly meets the requirements; Step S5: Before truss assembly, the form and position accuracy of the first connecting positioning block 6 and the second connecting positioning block 7 are further adjusted more precisely with the assistance of a laser tracker. During truss bonding, the pin holes or through holes on the first connecting positioning block 6 and the second connecting positioning block 7 are connected to the pin holes or threaded holes on the truss members or joints to ensure the theoretical position of the bonding assembly position of the truss members and joints is accurate, thereby ensuring that the bonding of the truss structure meets the index requirements.

[0025] Step S6: After the truss is glued and assembled, the first lead screw 11 rotates in the reverse direction to separate the baffle 9 from the positioning column, leaving a demolding gap. Then, rotating the second lead screw 12 in the forward direction can push out the positioning column, realizing demolding from the truss.

[0026] The implementation principle of this invention lies in the following: by setting up a connectable and fixed truss interface and a standardized T-slot interface on the basic adhesive bonding assembly platform and the positioning column, the invention achieves the beneficial effects of strong tooling versatility and high scalability, meeting the adhesive bonding assembly requirements of satellite rectangular trusses with different structures. By adapting the positioning column with a fine-tuning demolding tool, the precise adjustment of the positioning column position and convenient disassembly after adhesive bonding assembly are achieved, thereby improving operational efficiency while ensuring assembly accuracy. The setting of the positioning component ensures the beneficial effect of truss member and node positioning accuracy, laying the foundation for overall high-precision assembly. Through the above-mentioned simplified and convenient structural design, the invention achieves the beneficial effects of convenient and quick manual operation and significantly improved adhesive bonding assembly efficiency, solving the problem of time-consuming and labor-intensive traditional methods. Furthermore, by integrating and applying the above set of tooling systems and methods, the invention achieves the beneficial effect of consistently controlling the overall dimensional accuracy of large rectangular trusses after adhesive bonding to within 0.2 mm, meeting the requirements of high-precision manufacturing.

[0027] In summary, this invention provides a satellite rectangular truss adhesive bonding assembly fixture and adjustment method, simplifying the traditional multi-level transfer positioning structure into an integrated rigid platform + modular columns + dedicated fine-tuning demolding fixture + positioning connecting blocks, thus simplifying the structural hierarchy. The basic adhesive bonding assembly platform serves as the sole reference plane for the entire truss assembly, and all positioning columns on it can be set according to their standard T-slots, eliminating the cumulative errors caused by multi-level intermediate structures. Furthermore, the positioning connecting blocks shorten the positioning path by connecting the invention to the truss structure, which helps ensure accuracy. Moreover, coarse positioning and fine positioning are combined; coarse positioning utilizes T-slots for rapid positioning, while fine adjustment relies on the column fine-tuning demolding fixture for fine adjustments. The process is clear, and the number of operational steps is significantly reduced. The fine-tuning fixture combines the two core functions of "precise positioning" and "assisted demolding," serving two purposes in one fixture and simplifying the types of fixtures and operational steps. The assembly and adjustment process has been optimized to improve efficiency. The T-slot interface enables continuous adjustment of the position of the positioning column and positioning components in two-dimensional and three-dimensional planes, accommodating rectangular trusses of different sizes and configurations, and balancing versatility, expandability, and precision. In addition, the column fine-tuning demolding fixture innovatively integrates the two processes of "precise positioning and adjustment" and "safe and controllable demolding," which originally required different tools, into a simple and reliable mechanical device, achieving a "1+1>2" effect.

[0028] In the description of this application, it should be understood that the terms "upper", "lower", "front", "back", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", etc., indicate the orientation or positional relationship based on the orientation or positional relationship shown in the accompanying drawings. They are only for the convenience of describing this application and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation. Therefore, they should not be construed as limitations on this application.

[0029] Specific embodiments of the present invention have been described above. It should be understood that the present invention is not limited to the specific embodiments described above, and those skilled in the art can make various changes or modifications within the scope of the claims, which do not affect the essence of the present invention. Unless otherwise specified, the embodiments and features described in this application can be arbitrarily combined with each other.

Claims

1. A satellite rectangular truss adhesive bonding assembly fixture, characterized in that, include: Basic adhesive bonding assembly platform, multiple sets of positioning columns, positioning components, and column fine adjustment and demolding fixtures; The positioning column is vertically prismatic in shape and is arranged vertically on the basic adhesive assembly platform. The positioning component includes multiple positioning blocks, which are respectively installed on the positioning column and the basic adhesive assembly platform; When the positioning column is installed on the basic adhesive bonding assembly platform, the positioning column is adjusted and positioned by means of the column fine adjustment demolding tooling. The basic adhesive bonding assembly platform includes: a lower platform (1) and an upper platform (2) stacked together. The upper surface of the upper platform (2) has multiple sets of orthogonally arranged T-shaped grooves for installing and adjusting the multiple sets of positioning columns, positioning components, and column fine adjustment demolding fixtures.

2. The satellite rectangular truss adhesive bonding assembly fixture according to claim 1, characterized in that, The positioning column includes: column body (3), connecting corner piece (5), and transition beam (4); The column body (3) is a quadrangular prism, and its bottom and top surfaces are provided with installation interfaces. The column body (3) is connected to the foundation adhesive assembly platform through the installation interfaces. The transition beam (4) is located on the side edge of the column body (3); The transition beam (4) is provided with a T-shaped groove, and the truss assembly is connected and fixed by providing an interface through the configuration of T-shaped nuts; The three sides of the column body (3) are provided with through holes corresponding to the T-shaped groove interface of the transition beam (4). The number and distribution of the positioning columns are adjusted to match the truss structure; The bottom surface of the connecting corner piece (5) is fixed to the base adhesive assembly platform by fastening clamps, and the side of the connecting corner piece (5) is fixedly connected to the column body (3) by fasteners.

3. The satellite rectangular truss adhesive bonding assembly fixture according to claim 2, characterized in that, The column fine adjustment demolding fixture includes: baffle (9), T-shaped connecting fixing seat (10), first lead screw (11) and second lead screw (12); The baffle (9) and the T-shaped connecting fixing seat (10) are provided with an interface. The baffle (9) and the T-shaped connecting fixing seat (10) are connected by the first lead screw (11) and the second lead screw (12) and fixed with the connecting piece. The column fine adjustment demolding fixture adjusts the position of the positioning column by rotating the first lead screw (11) and the second lead screw (12) during the installation of the truss. After the adhesive bonding assembly is completed, the truss and the positioning column are separated by rotating the first lead screw (11) and the second lead screw (12).

4. The satellite rectangular truss adhesive bonding assembly fixture according to claim 2, characterized in that, The positioning component includes three positioning blocks: a first connecting positioning block (6), a second connecting positioning block (7), and a third connecting positioning block (8). Each of the three blocks is provided with a positioning pin hole and a positioning column connection interface. The number of the three blocks is adjusted according to the number of interfaces of the installation truss. The first connecting positioning block (6) and the second connecting positioning block (7) are installed on the transition beam (4) of the positioning column through positioning pins and positioning column connection interfaces. The third connecting positioning block (8) is installed on the upper platform (2) of the basic adhesive assembly platform and is installed in conjunction with the T-shaped groove opened on the upper surface of the upper platform (2).

5. The satellite rectangular truss adhesive bonding assembly fixture according to claim 1, characterized in that, A fixed interface is provided between the lower platform (1) and the upper platform (2) to fix the two together; The basic adhesive bonding assembly platform is 3 to 6 meters long, 1.5 to 4 meters wide, and 0.3 to 0.5 meters high. The overall flatness of the upper surface of the upper platform (2) is 0.03 to 0.05 mm; The T-slot on the upper surface of the upper platform (2) is a standard bidirectional T-slot interface, which accommodates and places T-nuts, with a T-slot spacing of 200 to 300 mm.

6. The satellite rectangular truss adhesive bonding assembly fixture according to claim 2, characterized in that, The main body of the column (3) has a cross-sectional dimension of 300mm×300mm and a height of 2m to 4m.

7. The satellite rectangular truss adhesive bonding assembly fixture according to claim 3, characterized in that, Each set of the column fine adjustment demolding fixture includes: a longer first lead screw (11) and two shorter second lead screws (12), with the longer first lead screw (11) positioned between the two shorter second lead screws (12).

8. A method for assembling and adjusting a satellite rectangular truss adhesive bonding assembly fixture according to any one of claims 1 to 7, characterized in that, include: Step S1: Initial rough positioning and installation of positioning columns on the basic adhesive bonding assembly platform; Step S2: Finely adjust the position of the column by adjusting the demolding tooling, then remove the column fine adjustment demolding tooling, and then fix the positioned column to the T-slot and / or the third connecting positioning block (8) in the base bonding assembly platform through the bottom or side interface; Step S3: The first connecting positioning block (6) and the second connecting positioning block (7) are connected to the T-shaped groove inside the transition beam (4). The first connecting positioning block (6) and the second connecting positioning block (7) are adjusted vertically along the transition beam (4). The first connecting positioning block (6) and the second connecting positioning block (7) are provided with pin holes or through holes to be connected to the truss member joints. Step S4: Initial rough adjustment to ensure the overall flatness of the surfaces of the first connecting positioning block (6) and the second connecting positioning block (7); Step S5: Before truss assembly, the form and position accuracy of the first connecting positioning block (6) and the second connecting positioning block (7) are further adjusted more precisely with the assistance of a laser tracker. When the truss is glued, the pin holes or through holes on the first connecting positioning block (6) and the second connecting positioning block (7) are connected to the pin holes or threaded holes on the truss members or joints. Step S6: After the truss is glued and assembled, the first lead screw (11) rotates in the reverse direction to separate the baffle (9) from the positioning column, leaving a demolding gap. Then, the second lead screw (12) rotates in the forward direction to push out the positioning column, thus demolding it from the truss.

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