Auxiliary assembly clamp for rubber screw mixed connection structure

Abstract

The application relates to the technical field of engineering assembly and test, and particularly discloses a kind of auxiliary assembly fixtures of glue screw mixed connection structure, including fixture base, upper cover plate, limiting mechanism and first push rod, first guide rail and second guide rail are equipped on fixture base, and first slot and second slot are correspondingly provided on upper cover plate;Limiting mechanism includes cylindrical limiting rod slidingly arranged in first guide rail and first slot and two rectangular limiting rods respectively slidingly arranged in second guide rail and second slot, and the cylindrical limiting rod is located between the two rectangular limiting rods;First push rod is detachably fixedly connected with cylindrical limiting rod by passing through first through hole on fixture base;Fixture base and upper cover plate are connected by tightening bolt.The application realizes accurate centering of hole shaft by cylindrical limiting rod penetrating bolt hole, and the upper and lower are guaranteed to be flush by cooperating with rectangular limiting rod, so that the assembly precision and efficiency of glue screw mixed connection structure are effectively improved.

Description

Technical Field

[0001] This invention relates to the fields of engineering assembly and testing technology, and in particular to an auxiliary assembly fixture with a hybrid glue-screw connection structure. Background Technology

[0002] Connection structures made of metals and composite materials can be broadly categorized into mechanical connections, adhesive bonding, and hybrid adhesive-screw connections. Mechanical connections offer advantages such as ease of replacement and high reliability; however, stress concentration near bolt holes is unavoidable, potentially becoming a weak point in the structure. Adhesive bonding provides good overall integrity, is suitable for irregularly shaped structures, and avoids stress concentration issues around holes; however, adhesive joints are susceptible to environmental factors such as temperature and humidity, resulting in relatively poor long-term performance stability. Hybrid adhesive-screw connections combine the advantages of both mechanical connections and adhesive bonding. They provide reliable mechanical locking force through bolts while enhancing the structure's sealing and load-bearing capacity through the adhesive layer. However, hybrid adhesive-screw connections require sophisticated manufacturing processes; parameters such as adhesive layer thickness, bolt preload, and hole alignment accuracy significantly impact the mechanical properties of the connection structure.

[0003] Typically, in the assembly process of a hybrid glue-bolt connection structure, there is a question of choosing the order of glue bonding and bolt hole pre-drilling. If the glue is bonded first, drilling later will impact and cut the cured glue layer, potentially introducing initial defects such as microcracks and reducing the load-bearing capacity of the connection structure. However, this method has lower precision requirements for glue bonding and is easier to process and assemble. If drilling is performed before bonding, the positioning of the connected structures during assembly becomes critical. Even slight deviations around the holes can make it difficult to insert the bolts smoothly. Therefore, strict control of the axial alignment of the bolt holes in the connected components is necessary during the glue curing process.

[0004] Currently, some patents involve assembly fixtures for hybrid glue-screw connection structures. For example, Chinese patent application CN116273742A discloses an assembly fixture and assembly method for a hybrid glue-screw connection structure. This assembly fixture includes a base plate, side sliding positioning posts, front sliding positioning posts, a bottom support plate, and a top pressure plate. The upper surface of the base plate has multiple upward-protruding fixed positioning posts, and the base plate also has multiple transverse and longitudinally extending strip holes. The side sliding positioning posts slide within the transverse strip holes, and the front sliding positioning posts slide within the longitudinal strip holes. The side sliding positioning posts, front sliding positioning posts, and multiple fixed positioning posts enclose an installation space. The test piece is located within the installation space. The bottom support plate is higher than the first test piece by one glue layer thickness. The second test piece is pressed against the first test piece and the bottom support plate. The top pressure plate is used to press the second test piece firmly. This solution limits the test piece by enclosing it from the outside using multiple positioning posts, thus ensuring the centering of the test piece to a certain extent. However, the positioning method of this fixture relies on the external constraint of the positioning stakes on the boundary of the test piece, and it cannot directly perform axial centering positioning on the pre-drilled bolt holes on the test piece. When there are deviations in the bolt hole positions of the connected structures or inconsistent dimensions of the test pieces, the centering accuracy of the bolt holes is still difficult to guarantee effectively. In addition, the adjustment range of the positioning stakes of this fixture is limited by the arrangement of the strip holes on the base plate, and its adaptability to connection structures with different hole spacings and different size specifications is limited. Therefore, in order to solve these problems, we propose an auxiliary assembly fixture for a hybrid glue-bolt connection structure. Summary of the Invention

[0005] The purpose of this invention is to overcome the shortcomings of the existing technology and to propose an auxiliary assembly fixture with a hybrid glue-screw connection structure.

[0006] To achieve the above objectives, the present invention adopts the following technical solution: An auxiliary assembly fixture for a hybrid glue-screw connection structure includes: A clamp base, wherein a first guide rail and a second guide rail are provided on the clamp base; The upper cover plate is provided with a first slot corresponding to the first guide rail and a second slot corresponding to the second guide rail; The limiting mechanism includes a cylindrical limiting rod and two rectangular limiting rods, and both the cylindrical limiting rod and the two rectangular limiting rods are vertically arranged. The cylindrical limiting rod is slidably arranged in a first guide rail and a first slot, and the two rectangular limiting rods are respectively slidably arranged in a second guide rail and a second slot, with the cylindrical limiting rod located between the two rectangular limiting rods. The first push rod has a first through hole on one side of the clamp base, and the first push rod passes through the first through hole and is detachably fixedly connected to the cylindrical limiting rod. The fixture base is provided with a base boss, and the upper cover plate is provided with a positioning slot that is slidably fitted with the base boss. The upper cover plate can slide up and down along the base boss. The fixture base and the upper cover plate can be connected by tightening bolts.

[0007] Preferably, the cylindrical limiting rod is a rod with a circular cross-section, and the cylindrical limiting rod can be inserted into the bolt hole of the connected structure.

[0008] Preferably, the tolerance between the cylindrical limiting rod and the bolt hole of the connected structure is 0.02mm.

[0009] Preferably, the rectangular limiting rod is a rod with a rectangular cross-section.

[0010] Preferably, the first push rod is a threaded rod, the first push rod is threadedly connected to the first through hole, the front end of the first push rod is threaded, and the first push rod is fixedly connected to the side thread of the cylindrical limiting rod through the thread.

[0011] Preferably, the fixture base has two symmetrical second through holes on one side, and a second push rod is slidably inserted into each of the two second through holes. The two second push rods are respectively fixedly connected to two rectangular limiting rods by threads. The second push rods are screw rods and are threaded to the second through holes.

[0012] Preferably, the upper cover plate has two symmetrical third through holes on one side, and a third push rod is slidably inserted into each of the two third through holes. The two third push rods are respectively fixedly connected to two rectangular limiting rods by threads. The third push rods are screw rods and are threaded to the third through holes.

[0013] Preferably, both the fixture base and the upper cover plate are provided with three tightening bolt holes. The three tightening bolt holes on the upper cover plate and the three tightening bolt holes on the fixture base are aligned vertically and arranged in a triangular pattern. The tightening bolts are threadedly connected to two vertically aligned tightening bolt holes. The three tightening bolts pass through the corresponding tightening bolt holes to connect the upper cover plate and the fixture base.

[0014] Preferably, the fixture base, upper cover plate, cylindrical limiting rod, rectangular limiting rod and push rod are all made of GH4169 high temperature alloy material.

[0015] Preferably, the connected structure is a single-nail overlapping flat plate structure.

[0016] Compared with the prior art, the beneficial effects of the present invention are: 1. This invention employs a cylindrical limiting rod that directly inserts into the bolt holes of the connected structure for axial centering and positioning. Simultaneously, rectangular limiting rods on both sides constrain the vertical alignment of the connected structure. These two elements work together to form a composite limiting system combining active hole positioning via insertion and external alignment constraint. This directly ensures precise axial alignment of the bolt holes in each layer of the connected structure, effectively solving the technical problem of bolt insertion difficulties caused by hole axis misalignment in the pre-drilling and post-gluing process, and significantly improving the assembly accuracy of the glue-screw hybrid connection structure.

[0017] 2. This invention features a first guide rail and a first slot, and a second guide rail and a second slot, respectively, on the fixture base and the top cover plate. Both the cylindrical and rectangular limiting rods can slide freely within their respective guide rails and slots, and are adjusted and locked via push rods. This allows for continuous sliding adjustment and flexibly adapts to connection structures with different hole spacings and sizes, resulting in greater versatility.

[0018] 3. This invention utilizes a sliding fit between the base boss of the fixture base and the positioning slot of the upper cover plate. The upper cover plate can slide up and down along the base boss to adjust its height according to the number of connecting structures assembled at one time. Then, three tightening bolts arranged in a triangle apply uniform pressure to the multi-layer connecting structures. This design balances the high efficiency of batch assembly with the uniformity of pressure distribution, enabling the simultaneous assembly of multiple connecting structures and significantly improving production efficiency.

[0019] 4. This invention strictly controls the fit tolerance between the cylindrical limiting rod and the bolt holes of the connected structure to 0.02mm. This ensures precise constraint on the axis of the multi-layer bolt holes after the limiting rod is inserted, effectively suppressing the offset of the hole axis caused by thermal coupling or external disturbances during the curing process of the adhesive layer. It also avoids difficulties in assembly and disassembly and damage to the hole wall caused by excessively small tolerances. At the same time, it reserves a reasonable gap for the thermal expansion difference between the high-temperature alloy material and the adhesive at different curing temperatures, achieving a unity of high-precision positioning and high operability, and further improving assembly quality and process stability. Attached Figure Description

[0020] To more clearly illustrate the specific embodiments of the present invention or the technical solutions in the prior art, the drawings used in the description of the specific embodiments or the prior art will be briefly introduced below. Obviously, the drawings described below are some embodiments of the present invention. For those skilled in the art, other drawings can be obtained from these drawings without creative effort.

[0021] Figure 1 This is a first isometric view of an auxiliary assembly fixture with a glue / screw hybrid connection structure according to the present invention; Figure 2 This is a second isometric view of an auxiliary assembly fixture with a glue / screw hybrid connection structure according to the present invention; Figure 3 This is a schematic diagram of the fixture base of the auxiliary assembly fixture tooling of the present invention; Figure 4 This is a schematic diagram of the structure of the upper cover plate of the auxiliary assembly fixture tooling of the present invention; Figure 5 This is a schematic diagram of the cylindrical limiting rod and the rectangular limiting rod of the present invention; Figure 6 These are the three views of a single-hole flat plate structure.

[0022] In the diagram: 1. Fixture base; 2. Top cover plate; 3. Cylindrical limit rod; 4. Rectangular limit rod; 5. First push rod; 6. Tightening bolt hole; 7. Base boss; 8. Positioning slot hole; 9. Second guide rail; 10. First guide rail; 11. Second slot; 12. First slot; 13. Second push rod; 14. Third push rod. Detailed Implementation

[0023] The technical solutions of the present invention will be clearly and completely described below with reference to the accompanying drawings of the embodiments of the present invention. Obviously, the described embodiments are only some embodiments of the present invention, and not all embodiments.

[0024] like Figure 1 and Figure 2 As shown in the figure, this embodiment provides an auxiliary assembly fixture for a glue / screw hybrid connection structure, including: a fixture base 1, an upper cover plate 2, a limiting mechanism, a push rod 5, and a standard M8 tightening bolt. The fixture base 1 and the upper cover plate 2 constitute the main body of the connection mechanism. The limiting mechanism includes a cylindrical limiting rod 3 and a rectangular limiting rod 4, with one cylindrical limiting rod 3 and two rectangular limiting rods 4.

[0025] The fixture base 1 is provided with a first guide rail 10 corresponding to the cylindrical limiting rod 3, the upper cover plate 2 is provided with a first slot 12 corresponding to the cylindrical limiting rod 3, the fixture base 1 is provided with a second guide rail 9 corresponding to the rectangular limiting rod 4, and the upper cover plate 2 is provided with a second slot 11 corresponding to the rectangular limiting rod 4. The cylindrical limiting rod 3 can slide freely within the corresponding first guide rail 10 and first slot 12, and the two rectangular limiting rods 4 can slide freely within the corresponding second guide rail 9 and second slot 11, respectively, with the cylindrical limiting rod 3 located between the two rectangular limiting rods 4. The limiting guide rail 10 and the sliding rail 9 are both strip-shaped groove structures extending along the length direction of the fixture base 1, and the limiting slot 12 and the sliding slot 11 are both strip-shaped through-slot structures extending along the length direction of the upper cover plate 2. Each guide rail and the corresponding slot are aligned vertically to ensure that the limiting rod always maintains a vertical posture during the sliding process.

[0026] like Figure 3As shown, a first through hole is provided on one side of the fixture base 1. The first push rod 5 slides through the first through hole and is fixedly connected to the side of the cylindrical limiting rod 3 by threads, thereby fixing and adjusting the cylindrical limiting rod 3. The rectangular limiting rods 4 on both sides have rectangular cross sections to ensure that the fixture base 1 and the upper cover plate 2 are flush. The cylindrical limiting rod 3 in the middle is used to insert into the bolt hole of the connected structure to ensure that the hole is aligned. The connected structure is a single-nail overlapping flat plate structure, i.e., a single-hole flat plate structure. The tolerance between the cylindrical limiting rod 3 and the bolt hole of the connected structure is 0.02mm.

[0027] The first push rod 5 is a screw type, which is threadedly connected to the first through hole. Through rotation and self-locking effect, the first push rod 5 can fix and move the cylindrical limiting rod 3. A hexagonal rotating block can be set at one end of the first push rod 5. By using a hexagonal wrench to rotate the hexagonal rotating block, the first push rod 5 can be rotated.

[0028] The three views of the single-hole plate structure are as follows: Figure 6 As shown, the single-hole plate structure has one hole, which is the bolt hole for the connected structure.

[0029] The cylindrical limiting rod 3 is a circular cross-section rod that can pass through the bolt holes of the connected structure. The diameter of the cylindrical limiting rod 3 is 6mm-12mm. That is, the cylindrical limiting rod 3 has multiple specifications and corresponds to bolt holes of different specifications of connected structures. The first guide rail 10 and the first slot 12 of the corresponding fixture base 1 and upper cover plate 2 are set with widths corresponding to the diameter of the cylindrical limiting rod 3. The tolerance between the cylindrical limiting rod 3 and the first guide rail 10 and the first slot 12 is 0.02mm.

[0030] The tolerance range was selected as the preferred value after extensive testing and verification. Too small a tolerance (e.g., less than 0.01 mm) would result in an overly tight fit between the cylindrical limiting rod 3 and the bolt hole, easily scratching the hole wall during insertion and removal, and even causing jamming after the adhesive extrusion solidifies, increasing assembly difficulty and reducing assembly efficiency. Too large a tolerance (e.g., greater than 0.05 mm) would fail to effectively limit the relative displacement of the hole axis. During adhesive curing, the connected structure might experience micron-level displacement due to thermal expansion and contraction or slight vibration of the clamp, leading to misalignment of the bolt hole axis after curing, affecting the smoothness of subsequent bolt insertion and connection strength. A tolerance of 0.02 mm ensures precise axial alignment of the cylindrical limiting rod with each layer of bolt holes, while also ensuring smooth removal of the limiting rod after assembly, avoiding damage to the hole wall. It also accommodates the compensation requirements for material thermal expansion during high-temperature curing, representing the optimal balance between positioning accuracy and ease of operation.

[0031] Two second through holes are symmetrically arranged on one side of the fixture base 1. These two second through holes are horizontally positioned, and a second push rod 13 slides through each of them. Two third through holes are symmetrically arranged on one side of the upper cover plate 2. These two third through holes are horizontally positioned, and a third push rod 14 slides through each of them. The two second push rods 13 are respectively threadedly connected to the two rectangular limit rods 4, and the two third push rods 14 are also respectively threadedly connected to the two rectangular limit rods 4. The two second push rods 13 and the two third push rods 14 are used to push and adjust the two rectangular limit rods 4, and to fix the two rectangular limit rods 4. Both the second push rods 13 and the third push rods 14 are threaded rods with threads at the front end, and both are connected to the same rectangular limit rod 4, facilitating fine-tuning and fixing of the rectangular limit rod 4 by the operator.

[0032] The second push rod 13 is a screw rod, threadedly connected to the second through hole. The third push rod 14 is also a screw rod, threadedly connected to the third through hole. The second push rod 13 and the third push rod 14 achieve the effect of pushing and fixing the rectangular limiting rod 4 through a spiral and self-locking effect. Both the second push rod 13 and the third push rod 14 have hexagonal rotating blocks at their ends. By using a hexagonal wrench to rotate the hexagonal rotating blocks, the second push rod 13 and the third push rod 14 can be rotated. In actual operation, it is necessary to rotate the second push rod 13 and the third push rod 14 on one rectangular limiting rod 4 simultaneously to push the rectangular limiting rod 4. Specifically, this is done by simultaneously tightening the rod from top to bottom until it is fully tightened. This operation has been proven feasible in practice. The second push rod 13 and the third push rod 14 are as follows... Figure 5 As shown.

[0033] A base boss 7 is vertically fixed on the upper side of the fixture base 1, and a positioning slot 8 matching the base boss 7 is provided on the lower surface of the upper cover plate 2. The upper cover plate 2 can slide up and down along the base boss 7 of the fixture base 1 to accommodate different numbers of connection structures. The base boss 7 is a rectangular protrusion extending vertically along the fixture base 1, and the positioning slot 8 is a rectangular hole extending vertically along the upper cover plate 2. The two are fitted with a clearance, which ensures the smooth sliding of the upper cover plate 2 in the vertical direction and restricts the offset of the upper cover plate 2 in the horizontal direction.

[0034] like Figure 4As shown, both the upper cover plate 2 and the clamp base 1 are provided with three tightening bolt holes 6. The three tightening bolt holes 6 on the upper cover plate 2 and the three tightening bolt holes 6 on the clamp base 1 are arranged in a triangle and aligned vertically. The upper cover plate 2 and the clamp base 1 are connected by three tightening bolts, that is, the three tightening bolts correspond to the three tightening bolt holes 6. Each of the three tightening bolts is threaded into the tightening bolt holes 6 on the upper cover plate 2 and the clamp base 1 respectively. After the three tightening bolts are tightened, uniform pressure can be applied to the multi-layer connection structure. The three tightening bolt holes 6 are stably distributed in a triangle, with two located on one side of the clamp and one located in the middle of the other side. This triangular arrangement can effectively prevent the upper cover plate 2 from tilting when pressure is applied, ensuring that the adhesive layer pressure on each connection structure is uniform.

[0035] This auxiliary assembly fixture is made entirely of GH4169 high-temperature alloy material, which can withstand temperatures above 300℃ and is suitable for various adhesive curing processes. GH4169 high-temperature alloy has good high-temperature strength and oxidation resistance, and can maintain sufficient rigidity and dimensional stability even at high temperatures above 300℃, ensuring that the fixture will not deform during high-temperature curing and thus will not affect positioning accuracy.

[0036] When using this invention, each component needs to cooperate with the connected single-hole plate structure. The central cylindrical limiting rod 3 passes through the bolt hole of the connected plate structure and plays the main limiting role. The rectangular limiting rods 4 on both sides and the base boss 7 together constrain the connected plate structure to ensure that the connected plate structure will not shift during the curing process.

[0037] During assembly, the connected flat structures are first stacked according to the overlap requirements, and adhesive film is applied or placed between the overlap surfaces to form a pre-adhesive body. Then, the cylindrical limiting rods 3 are passed through the bolt holes of each layer of flat structures in sequence to connect multiple pre-adhesive bodies into a whole. Next, the pre-adhesive bodies connected in series are placed in the fixture base 1, and the positions of the two rectangular limiting rods 4 are adjusted so that they clamp the pre-adhesive bodies from both sides. Finally, the upper cover plate 2 is slid down along the base boss 7 and placed on top of the pre-adhesive bodies. The three tightening bolts are tightened to apply the predetermined pressure, and then the body is sent into the curing oven for adhesive layer curing.

[0038] Considering the large number of connection structures requiring adhesive layer curing in a single operation, and the inconsistent dimensions of the flat structures requiring adhesive layer curing in different batches, the device features a movable upper cover plate 2 in the vertical direction. It also incorporates limiting guide rails 10 and limiting slots 12 for different cylindrical limiting rods 3. Structures with different geometric dimensions can be adjusted by pushing and adjusting the cylindrical limiting rods 3 to different track positions to accommodate varying connection requirements. For example, when the bolt holes of the connected structures are far from the side of the flat plate, the cylindrical limiting rod 3 can be slid along the limiting guide rail 10 to the corresponding position and then locked by the first push rod 5. When a large number of connection structures need to be assembled simultaneously, the upper cover plate 2 can be slid upwards along the base boss 7 to increase the accommodating space. Finally, the upper cover plate 2 is connected to the fixture base 1 by tightening bolts at three bolt holes 6, applying a certain pressure to ensure the strength of the cured adhesive layer. The applied pressure can be adjusted according to the type of adhesive and the specific requirements of the connection structure; generally, precise pressure control is achieved by controlling the torque of the tightening bolts using a torque wrench.

[0039] In the description of this specification, the references to terms such as "an embodiment," "example," "specific example," etc., indicate that a specific feature, structure, material, or characteristic described in connection with that embodiment or example is included in at least one embodiment or example of this application. In this specification, the illustrative expressions of the above terms do not necessarily refer to the same embodiment or example. Furthermore, the specific features, structures, materials, or characteristics described may be combined in any suitable manner in one or more embodiments or examples.

[0040] The foregoing has shown and described the basic principles, main features, and advantages of this application. Those skilled in the art should understand that this application is not limited to the above embodiments. The embodiments and descriptions in the specification are merely illustrative of the principles of this application. Various changes and modifications can be made to this application without departing from the spirit and scope thereof, and all such changes and modifications fall within the scope of the claims of this application.

Claims

1. An auxiliary assembly fixture for a hybrid glue-screw connection structure, characterized in that, include: The clamp base (1) is provided with a first guide rail (10) and a second guide rail (9). The upper cover plate (2) is provided with a first slot (12) corresponding to the first guide rail (10) and a second slot (11) corresponding to the second guide rail (9). The limiting mechanism includes a cylindrical limiting rod (3) and two rectangular limiting rods (4), and both the cylindrical limiting rod (3) and the two rectangular limiting rods (4) are vertically arranged. The cylindrical limiting rod (3) is slidably arranged in the first guide rail (10) and the first slot (12), and the two rectangular limiting rods (4) are slidably arranged in the second guide rail (9) and the second slot (11), respectively, and the cylindrical limiting rod (3) is located between the two rectangular limiting rods (4). The first push rod (5) has a first through hole on one side of the clamp base (1). The first push rod (5) passes through the first through hole and is detachably fixedly connected to the cylindrical limiting rod (3). The fixture base (1) is provided with a base boss (7), and the upper cover plate (2) is provided with a positioning slot (8) that is slidably fitted with the base boss (7). The upper cover plate (2) can slide up and down along the base boss (7). The clamp base (1) and the upper cover plate (2) can be connected by tightening bolts.

2. The auxiliary assembly fixture for a hybrid glue-screw connection structure according to claim 1, characterized in that, The cylindrical limiting rod (3) is a circular cross-section rod that can be inserted into the bolt hole of the connected structure.

3. The auxiliary assembly fixture for a hybrid glue-screw connection structure according to claim 2, characterized in that, The tolerance between the cylindrical limiting rod (3) and the bolt hole of the connected structure is 0.02mm.

4. The auxiliary assembly fixture for a hybrid glue-screw connection structure according to claim 1, characterized in that, The rectangular limiting rod (4) is a rod with a rectangular cross section.

5. The auxiliary assembly fixture for a hybrid glue-screw connection structure according to claim 1, characterized in that, The first push rod (5) is a threaded rod. The first push rod (5) is threadedly connected to the first through hole. The front end of the first push rod (5) is threaded. The first push rod (5) is fixedly connected to the side thread of the cylindrical limiting rod (3) through the thread.

6. The auxiliary assembly fixture for a hybrid glue-screw connection structure according to claim 1, characterized in that, The fixture base (1) has two second through holes symmetrically arranged on one side. A second push rod (13) is slidably inserted into each of the two second through holes. The two second push rods (13) are respectively fixedly connected to the two rectangular limit rods (4) by threads. The second push rod (13) is a screw rod and is threadedly connected to the second through hole.

7. The auxiliary assembly fixture for a hybrid glue-screw connection structure according to claim 6, characterized in that, Two third through holes are symmetrically provided on one side of the upper cover plate (2). A third push rod (14) is slidably inserted into each of the two third through holes. The two third push rods (14) are respectively fixedly connected to the two rectangular limiting rods (4) by threads. The third push rod (14) is a screw rod and is threadedly connected to the third through hole.

8. The auxiliary assembly fixture for a hybrid glue-screw connection structure according to claim 1, characterized in that, The fixture base (1) and the upper cover plate (2) are each provided with three tightening bolt holes (6). The three tightening bolt holes (6) of the upper cover plate (2) and the three tightening bolt holes (6) of the fixture base (1) are aligned vertically and arranged in a triangular pattern. The tightening bolts are threadedly connected to the two vertically aligned tightening bolt holes (6). The three tightening bolts pass through the corresponding tightening bolt holes (6) to connect the upper cover plate (2) and the fixture base (1).

9. The auxiliary assembly fixture for a hybrid glue-screw connection structure according to claim 1, characterized in that, The fixture base (1), upper cover plate (2), cylindrical limiting rod (3), rectangular limiting rod (4) and push rod (5) are all made of GH4169 high temperature alloy material.

10. The auxiliary assembly fixture for a hybrid glue-screw connection structure according to claim 2, characterized in that, The connected structure is a flat plate structure with a single nail lap joint.

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