Glue joint tool for fairing and inner plate of propeller

Abstract

The invention relates to the technical field of aviation product cementing, and discloses a propeller fairing and inner plate cementing tool which comprises a bottom plate, a supporting disc, a positioning ring, a fairing shell, a pressing plate, a second pin, a second angular positioning block and the like. A first angular positioning block, a fixing screw, a lifting ring and a mandrel are arranged on the bottom plate, the mandrel is in interference fit with the bottom plate, and an angular relation is determined by a first pin; the positioning ring is arranged on the bottom plate, and a third pin is inserted on the positioning ring; the fairing shell is provided with an n-shaped door opening, and the n-shaped door opening and the first angular positioning block are positioned in a clearance fit mode and preliminarily fixed. The pressing plate is arranged on the fairing shell, is connected with the bottom plate through a screw rod and is fixed by a nut; an inner plate is arranged on the supporting disc, an inner hole of the inner plate is in interference fit with the mandrel, and the angular relation is determined through a second pin; the second angular positioning block is arranged on the outer ring of the supporting disc and provided with a positioning screw. All the structures of the tool cooperate with one another, and the overall assembly precision and structural stability of the fairing are effectively improved.

Description

Technical Field

[0001] The invention relates to the technical field of aviation product bonding, in particular to a bonding tool for a propeller fairing and an inner plate. Background Art

[0002] In the field of aviation technology, the assembly of propeller fairings and their inner panels is a critical step. Their assembly accuracy and structural stability directly affect propeller performance and flight safety. Therefore, the development of efficient and precise bonding tools is crucial to improving the assembly quality of propeller fairings.

[0003] Prior art tools for gluing propeller fairings and inner panels may have deficiencies in their structural design and assembly methods. For example, precise positioning of components during installation may be difficult, resulting in low assembly precision; connections between components may be weak, affecting the overall structural stability of the fairing; or effective angular positioning and fixing mechanisms may be lacking during assembly, making the process complex and prone to errors. These issues can cause the fairing to deviate or become loose after assembly, impacting propeller performance and flight safety. Summary of the Invention

[0004] In response to the deficiencies of the prior art, the present invention provides a gluing tool for a propeller fairing and an inner plate to solve the problem raised in the above background technology that the fairing may deviate or become loose after assembly, thereby affecting the performance and flight safety of the propeller.

[0005] To achieve the above object, the present invention provides the following technical solution: a gluing tool for a propeller fairing and an inner plate, comprising:

[0006] A bottom plate and a support plate, wherein a first angular positioning block is installed on the upper surface of the bottom plate, a fixing screw is screwed onto the surface of the first angular positioning block, and hanging rings are provided at the four corners of the upper surface of the bottom plate;

[0007] A positioning ring is provided on the upper surface of the base plate, a third pin is inserted into the upper surface of the positioning ring, a core shaft is installed on the upper surface of the base plate, a first pin is inserted into the upper surface of the core shaft, the core shaft and the base plate are installed and positioned by interference fit, and the angular relationship is determined by the first pin;

[0008] A fairing shell is provided on the upper surface of the base plate, wherein the surface of the fairing shell is evenly distributed with n-shaped door openings, and the n-shaped door openings of the fairing shell are positioned with a clearance fit with the first angular positioning block, and a fixing screw is screwed onto the surface of the first angular positioning block;

[0009] A pressure plate is provided on the upper surface of the fairing shell, and screws are evenly distributed on the surface of the pressure plate. The bottom ends of the screws are connected to the bottom plate, and nuts are screwed on the upper surfaces of the screws.

[0010] An inner plate is installed on the upper surface of the support disk, and the inner hole of the support disk is interference-fitted with the core shaft;

[0011] A second pin is provided on the upper surface of the support plate, wherein the support plate and the core shaft determine an angular relationship through the second pin;

[0012] The second angular positioning block is arranged on the outer ring of the supporting plate, and a positioning screw is screwed on the surface of the second angular positioning block.

[0013] Preferably, mounting holes are provided at the four corners of the upper surface of the base plate, and threaded grooves are provided on the inner walls of the mounting holes. The bottoms of the lifting rings are screwed into the inside of the mounting holes, and the depth of the threaded grooves of the mounting holes matches the thread length of the bottom of the lifting rings. The threaded fastening method ensures that the connection between the lifting rings and the base plate is firm, and prevents the lifting rings from loosening due to vibration during transportation or assembly. At the same time, the processing accuracy of the threaded grooves meets the assembly requirements, ensuring that the lifting rings are perpendicular to the surface of the base plate after installation, and preventing the stability of subsequent lifting operations from being affected by tilting.

[0014] Preferably, a mounting groove is provided on the surface of the positioning ring, and the first angular positioning block is installed inside the mounting groove. The size of the mounting groove completely matches the outer contour of the first angular positioning block, and rapid positioning is achieved through clearance fit, ensuring that the first angular positioning block does not shake in the mounting groove, thereby improving the accuracy of angular positioning; at the same time, the groove wall of the mounting groove is provided with a chamfered structure, which facilitates the alignment of the first angular positioning block when it is installed, reduces scratches during the assembly process, and improves assembly efficiency.

[0015] Preferably, a first pin hole is provided on the upper surface of the positioning ring at a position corresponding to the third pin, and the third pin is inserted into the inside of the first pin hole. The diameter of the first pin hole matches the outer diameter of the third pin, and an interference fit or a transition fit is used to ensure that the torque can be effectively transmitted after the pin is inserted, thereby preventing relative rotation between the positioning ring and the base plate due to force. At the same time, a chamfer is provided at the entrance of the first pin hole, which facilitates the rapid insertion of the third pin, reduces the difficulty of operation during assembly, and improves assembly efficiency.

[0016] Preferably, a first screw hole is provided on the surface of the first angular positioning block, and the fixing screw is screwed into the inside of the first screw hole. A hidden groove is provided on the surface of the first screw hole, and the control end of the fixing screw is located inside the hidden groove. The depth of the hidden groove matches the height of the control end of the fixing screw to ensure that the head of the screw is completely embedded in the groove after being tightened, thereby avoiding the protrusion of the control end affecting the installation of the fairing shell or interfering with other components; at the same time, the groove wall of the hidden groove is chamfered to reduce scratches on the operator's hands during assembly and improve operational safety.

[0017] Preferably, a fixing head is installed at the bottom end of the screw, and fixing holes are opened on the upper surface of the base plate at the corresponding positions of the screw. The fixing heads are installed inside the fixing holes, and the shape of the fixing holes completely matches the appearance of the fixing heads. The screw and the base plate are firmly connected through interference fit or threaded connection to avoid loosening of the screw due to force during the tightening process; at the same time, the position layout of the fixing holes is optimized to make the force on the screw evenly distributed, thereby improving the tightening effect of the pressure plate on the fairing shell and ensuring that the fairing shell remains stable after assembly.

[0018] Preferably, mounting openings are provided on the surface of the pressure plate and at corresponding positions of the screw, and a connecting head is installed at the top end of the screw, and the connecting head passes through the interior of the mounting opening. The bottom of the nut is in close contact with the opening of the mounting opening, and the size of the mounting opening is slightly larger than the outer diameter of the connecting head, which is convenient for fine-tuning the pressure plate during assembly to ensure that the pressure plate can evenly cover the upper surface of the fairing shell; at the same time, the design of the connecting head increases the strength of the top end of the screw, avoiding deformation of the screw due to excessive force when tightening the nut, ensuring stable transmission of the clamping force, and improving the assembly accuracy of the fairing shell.

[0019] Preferably, a positioning groove is provided on the surface of the support plate, and the second angular positioning block is installed in the positioning groove of the support plate through clearance fit, and a second pin hole is provided on the upper surface of the support plate corresponding to the second pin, and the second pin is installed inside the second pin hole, and the depth and width of the positioning groove match the outer contour of the second angular positioning block. The clearance fit ensures that the positioning block can be freely installed and avoids shaking after assembly, thereby ensuring the angular accuracy when the inner plate is glued; the second pin hole has high processing accuracy and fits tightly with the outer diameter of the second pin, and effectively transmits torque through interference fit or transition fit, thereby preventing relative rotation between the support plate and the core shaft due to force, thereby ensuring the stable position of the inner plate during the gluing process.

[0020] Preferably, a second screw hole is provided on the surface of the second angular positioning block, and the connecting end of the positioning screw passes through the second screw hole and is screwed to the surface of the support plate. A receiving groove is provided at the opening of the second screw hole, and the control end of the positioning screw is located inside the receiving groove. The size of the receiving groove matches the shape of the control end of the positioning screw to ensure that the head of the screw is completely embedded in the groove after being tightened, so as to avoid the protrusion of the control end affecting the installation of the second angular positioning block or interfering with other components; at the same time, the groove wall of the receiving groove is chamfered to reduce scratches on the operator's hands during assembly, improve operational safety, and facilitate subsequent disassembly and maintenance of the positioning screw.

[0021] Compared with the prior art, the present invention provides a gluing tool for a propeller fairing and an inner plate, which has the following beneficial effects:

[0022] The gluing tool for the propeller fairing and the inner plate is provided with a first angular positioning block on the base plate to cooperate with the gap of the N-shaped door opening of the fairing shell for positioning, and cooperates with the fixing screws to achieve preliminary fixation. At the same time, the core shaft and the base plate have an interference fit and the angular relationship is determined by the first pin, the inner hole of the support plate has an interference fit with the core shaft and the angular relationship is determined by the second pin, and then it is connected to the base plate through the screw of the pressure plate and the nut is screwed on, as well as the cooperation of the second angular positioning block and the positioning screw. These structures cooperate with each other, so that each component can be accurately positioned and firmly connected during the installation process, effectively improving the overall assembly accuracy and structural stability of the fairing. BRIEF DESCRIPTION OF THE DRAWINGS

[0023] Figure 1 It is a schematic diagram of the structure of the present invention;

[0024] Figure 2 It is a schematic cross-sectional view of the present invention;

[0025] Figure 3 This is a schematic diagram of the installation structure of the support plate of the present invention;

[0026] Figure 4 Schematic diagram of the structure of the bottom plate of the present invention;

[0027] Figure 5 It is a structural schematic diagram of the positioning ring of the present invention;

[0028] Figure 6 This is a front view structural diagram of the first angular positioning block of the present invention;

[0029] Figure 7 This is a side structural schematic diagram of the first angular positioning block of the present invention;

[0030] Figure 8 This is a front view structural diagram of the second angular positioning block of the present invention;

[0031] Figure 9 This is a side structural schematic diagram of the second angular positioning block of the present invention;

[0032] Figure 10 It is a structural schematic diagram of the pressing plate of the present invention;

[0033] Figure 11 Schematic diagram of the structure of the screw of the present invention;

[0034] Figure 12 It is a structural schematic diagram of the support plate of the present invention.

[0035] In the figure: 1. Base plate; 2. First angular positioning block; 3. Lifting ring; 4. Positioning ring; 5. First pin; 6. Core shaft; 7. Fairing shell; 8. Pressure plate; 9. Support plate; 10. Second pin; 11. Second angular positioning block; 12. Positioning screw; 13. Inner plate; 14. Fixing screw; 15. Third pin; 16. Screw; 17. Nut; 18. Mounting hole; 19. Positioning slot; 20. Mounting slot; 21. First pin hole; 22. First screw hole; 23. Hidden slot; 24. Second screw hole; 25. Storage slot; 26. Mounting port; 27. Fixing head; 28. Fixing hole; 29. ​​Connecting head; 30. Second pin hole. DETAILED DESCRIPTION

[0036] The following will clearly and completely describe the technical solutions in the embodiments of the present invention in conjunction with the accompanying drawings. Obviously, the described embodiments are only part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without making creative efforts are within the scope of protection of the present invention.

[0037] The present invention provides a technical solution, a gluing tool for a propeller fairing and an inner plate, comprising:

[0038] See also Figure 1 , bottom plate 1 and support plate 9, the upper surface of the bottom plate 1 is installed with a first angular positioning block 2, the surface of the first angular positioning block 2 is screwed with a fixing screw 14, and the four corners of the upper surface of the bottom plate 1 are provided with a lifting ring 3;

[0039] See also Figure 2 , positioning ring 4, set on the upper surface of the bottom plate 1, please refer to Figure 1 , a third pin 15 is inserted into the upper surface of the positioning ring 4, see Figure 2 , a core shaft 6 is installed on the upper surface of the base plate 1, and a first pin 5 is inserted into the upper surface of the core shaft 6. The core shaft 6 and the base plate 1 are installed and positioned by interference fit, and the first pin 5 is used to determine the angular relationship;

[0040] See also Figure 2 The fairing shell 7 is arranged on the upper surface of the bottom plate 1. The surface of the fairing shell 7 is evenly distributed with n-shaped door holes. The n-shaped door holes of the fairing shell 7 and the first angular positioning block 2 are positioned with clearance fit. Please refer to Figure 2 , a fixing screw 14 is screwed onto the surface of the first angular positioning block 2;

[0041] The pressure plate 8 is provided on the upper surface of the fairing shell 7. Screws 16 are evenly distributed on the surface of the pressure plate 8. The bottom ends of the screws 16 are connected to the bottom plate 1. Nuts 17 are screwed on the upper surfaces of the screws 16.

[0042] See also Figure 1 , an inner plate 13 is installed on the upper surface of the support disk 9, and the inner hole of the support disk 9 is interference fit with the core shaft 6;

[0043] A second pin 10 is provided on the upper surface of the support plate 9, and the support plate 9 and the core shaft 6 determine an angular relationship through the second pin 10;

[0044] See also Figure 3 The second angular positioning block 11 is arranged on the outer ring of the support plate 9, and a positioning screw 12 is screwed onto the surface of the second angular positioning block 11.

[0045] The propeller fairing is positioned by setting a first angular positioning block 2 on the base plate 1 and cooperating with the N-shaped door opening clearance of the fairing shell 7, and is initially fixed with the fixing screw 14. At the same time, the core shaft 6 is interference fit with the base plate 1 and the angular relationship is determined by the first pin 5. The inner hole of the support plate 9 is interference fit with the core shaft 6 and the angular relationship is determined by the second pin 10. It is then connected to the base plate 1 through the screw 16 of the pressure plate 8 and the nut 17 is screwed on, as well as the cooperation of the second angular positioning block 11 and the positioning screw 12. These structures cooperate with each other, so that each component can be accurately positioned and firmly connected during the installation process, effectively improving the overall assembly accuracy and structural stability of the fairing.

[0046] The first angular positioning block 2 set on the base plate 1 is matched with the N-shaped door opening clearance of the fairing shell 7, and is screwed and fixed by the fixing screw 14, which facilitates the angular positioning and firm connection of the fairing shell 7 on the base plate 1; the positioning ring 4 is set on the upper surface of the base plate 1, and the core shaft 6 is installed on the base plate 1 by interference fit and the angular relationship is determined by the first pin 5, which can ensure the installation accuracy and positioning stability of the core shaft 6; the pressure plate 8 is connected to the base plate 1 by the screw 16, and is screwed and pressed with the nut 17 to tighten the upper surface of the fairing shell 7, which can provide uniform pressing force and ensure the stability and reliability of the fairing shell 7 during the assembly process.

[0047] The workflow for the propeller fairing is based on its structural design, achieving precise assembly and stable fixation through the synergy of various components. The specific process is as follows:

[0048] First, the base plate 1 serves as the basic support platform, with the first angular positioning block 2 pre-installed on its upper surface, and the connection is strengthened by fixing screws 14 to ensure the stability of the positioning block; at the same time, the lifting rings 3 at the four corners of the base plate 1 provide convenience for subsequent lifting operations and ensure the safety of movement during the assembly process.

[0049] Next, a locating ring 4 is placed on the upper surface of base plate 1, forming an axial positioning reference for the subsequently installed core shaft 6. Core shaft 6 is attached to base plate 1 via an interference fit, which eliminates play and prevents displacement of core shaft 6 due to stress. Subsequently, a first pin 5 is inserted into the upper surface of core shaft 6 to further define its angular relationship, ensuring both axial and angular positioning accuracy between core shaft 6 and base plate 1, providing core positioning support for the installation of fairing housing 7.

[0050] Next, the fairing housing 7 is placed on the upper surface of the base plate 1. The evenly distributed N-shaped door openings on its surface are positioned with a clearance fit between the first angular positioning blocks 2. This fit allows for angular fine-tuning of the fairing housing 7 to accommodate assembly errors, while also ensuring that the angular reference of the fairing housing 7 is aligned with the base plate 1 through the rigid constraint of the first angular positioning blocks 2. After adjustment, the fixing screws 14 on the surface of the first angular positioning blocks 2 are tightened, preliminarily securing the fairing housing 7 to the base plate 1.

[0051] Finally, the pressure plate 8 covers the upper surface of the fairing shell 7, and the bottom ends of the screws 16 evenly distributed on its surface are connected to the base plate 1. By tightening the nuts 17 on the surface of the screws 16, the pressure plate 8 applies a uniform pressing force downward, further eliminating the assembly gap between the fairing shell 7 and the base plate 1, preventing displacement caused by vibration or force, and finally achieving accurate and stable assembly of the fairing shell 7 and the base plate 1.

[0052] In summary, this structure ensures the position accuracy and structural stability of the propeller fairing during the assembly process through the reference positioning of the base plate 1, the interference + pin dual positioning of the core shaft 6, the angular constraint of the first angular positioning block 2 and the pressing fixation of the pressure plate 8. It is suitable for propeller fairing manufacturing scenarios that require high-precision positioning and vibration resistance.

[0053] See also Figure 4 , mounting holes 18 are provided at the four corners of the upper surface of the base plate 1, and threaded grooves are provided on the inner walls of the mounting holes 18. The bottom of the lifting ring 3 is screwed into the inside of the mounting hole 18. The depth of the threaded groove of the mounting hole 18 matches the thread length of the bottom of the lifting ring 3. The threaded fastening method ensures that the connection between the lifting ring 3 and the base plate 1 is firm, avoiding loosening of the lifting ring 3 due to vibration during transportation or assembly; at the same time, the processing accuracy of the threaded groove meets the assembly requirements, ensuring that the lifting ring 3 is perpendicular to the surface of the base plate 1 after installation, preventing the stability of subsequent lifting operations from being affected by tilt.

[0054] See also Figure 5A mounting groove 20 is provided on the surface of the positioning ring 4, and the first angular positioning block 2 is installed inside the mounting groove 20. The size of the mounting groove 20 is completely matched with the outer contour of the first angular positioning block 2, and rapid positioning is achieved through clearance fit, ensuring that the first angular positioning block 2 has no shaking in the mounting groove 20, thereby improving the accuracy of angular positioning; at the same time, the groove wall of the mounting groove 20 is provided with a chamfered structure, which facilitates the alignment of the first angular positioning block 2 when it is installed, reduces scratches during the assembly process, and improves assembly efficiency.

[0055] A first pin hole 21 is provided on the upper surface of the positioning ring 4 at a position corresponding to the third pin 15. The third pin 15 is inserted into the inside of the first pin hole 21. The diameter of the first pin hole 21 matches the outer diameter of the third pin 15. An interference fit or a transition fit is used to ensure that the torque can be effectively transmitted after the pin is inserted, thereby preventing relative rotation between the positioning ring 4 and the base plate 1 due to force. At the same time, a chamfer is provided at the entrance of the first pin hole 21 to facilitate the rapid alignment and insertion of the third pin 15, thereby reducing the difficulty of operation during assembly and improving assembly efficiency.

[0056] See also Figure 6 The first angular positioning block 2 has a first screw hole 22 on its surface, and the fixing screw 14 is screwed into the first screw hole 22. Figure 7 A hidden groove 23 is provided on the surface of the first screw hole 22, and the control end of the fixing screw 14 is located inside the hidden groove 23. The depth of the hidden groove 23 matches the height of the control end of the fixing screw 14, ensuring that the head of the screw is completely embedded in the groove after being tightened, avoiding the protrusion of the control end affecting the installation of the fairing shell 7 or interfering with other components; at the same time, the groove wall of the hidden groove 23 is chamfered to reduce scratches on the operator's hands during assembly and improve operational safety.

[0057] See also Figure 11 The bottom end of the screw rod 16 is equipped with a fixed head 27, see Figure 4 , fixing holes 28 are opened on the upper surface of the base plate 1 at positions corresponding to the screw 16, and the fixing heads 27 are installed inside the fixing holes 28. The shape of the fixing holes 28 is completely matched with the appearance of the fixing heads 27. The screw 16 is firmly connected to the base plate 1 through interference fit or threaded connection, avoiding the screw 16 from loosening due to force during the tightening process; at the same time, the position layout of the fixing holes 28 is optimized, so that the force on the screw 16 is evenly distributed, thereby improving the tightening effect of the pressure plate 8 on the fairing shell 7, and ensuring that the fairing shell 7 remains stable after assembly.

[0058] See also Figure 10 , the surface of the pressing plate 8 and the corresponding position of the screw 16 are both provided with mounting openings 26, please refer to Figure 11The top of the screw 16 is equipped with a connector 29, which passes through the inside of the mounting port 26. The bottom of the nut 17 is in close contact with the opening of the mounting port 26. The size of the mounting port 26 is slightly larger than the outer diameter of the connector 29, which is convenient for fine-tuning the pressure plate 8 during assembly to ensure that the pressure plate 8 can evenly cover the upper surface of the fairing shell 7; at the same time, the design of the connector 29 increases the strength of the top of the screw 16, avoiding deformation of the screw 16 due to excessive force when tightening the nut 17, ensuring stable transmission of the clamping force, and improving the assembly accuracy of the fairing shell 7.

[0059] The support plate 9 is firmly connected with the core shaft 6 through interference fit through the inner hole to avoid relative movement; the second pin 10 is arranged on the upper surface of the support plate 9 and cooperates with the core shaft 6 to determine the angular relationship to ensure the assembly angle accuracy; the second angular positioning block 11 is located on the outer ring of the support plate 9 and the positioning screw 12 is screwed on the surface. The angular position can be further locked by tightening the positioning screw 12. The synergistic effect of the above structures effectively improves the positioning accuracy and structural stability of the inner plate 13 during the bonding process, thereby ensuring the bonding quality.

[0060] A workflow for an inner panel bonding tool based on a propeller fairing achieves high-precision positioning and stable bonding of the inner panel 13 through structural synergy, as follows:

[0061] First, the support plate 9 serves as the core bearing component, its inner hole securely connected to the core shaft 6 through an interference fit. This tight contact eliminates the risk of relative movement between the support plate 9 and the core shaft 6, provides basic rigid support for subsequent positioning, and ensures the planar stability of the inner plate 13 during the bonding process.

[0062] Next, a second pin 10 is installed on the upper surface of the support plate 9 and engages with the corresponding pinhole in the core shaft 6. This pin, through precise geometric matching, determines the angular relationship between the support plate 9 and the core shaft 6, eliminating angular deviation during assembly. This step is crucial for angular positioning, ensuring the initial assembly accuracy of the inner plate 13 in the circumferential direction and avoiding adhesive stress concentration or structural interference caused by angular misalignment.

[0063] Next, the second angular positioning block 11 is secured to the outer ring of the support plate 9, and the set screws 12 screwed onto its surface are engaged. By tightening the set screws 12, the second angular positioning block 11 forms a rigid constraint with the outer ring of the support plate 9, further locking the established angular position. This structure, serving as a secondary positioning safeguard, offsets any interference with angular accuracy caused by external forces during the bonding process, ensuring that the inner panel 13 maintains the preset angle throughout the curing process.

[0064] Ultimately, the above structures work synergistically: the interference fit of the support plate 9 provides foundational stability, the second pin 10 ensures initial angular accuracy, and the second angular positioning block 11 and set screw 12 provide secondary locking. Together, these three elements form a complete positioning system that combines "foundational stability, precise angular positioning, and resistance to external forces." This system effectively improves the positioning accuracy and structural stability during the bonding process of the inner panel 13, preventing uneven bonding, joint defects, or structural deformation caused by positional offset, thereby ensuring bonding quality and the overall performance of the fairing.

[0065] See also Figure 12 The surface of the support plate 9 is provided with a positioning groove 19, and the second angular positioning block 11 is installed in the positioning groove 19 of the support plate 9 through clearance fit. A second pin hole 30 is provided on the upper surface of the support plate 9 corresponding to the second pin 10. The second pin 10 is installed inside the second pin hole 30, and the depth and width of the positioning groove 19 match the outer contour of the second angular positioning block 11. The clearance fit not only ensures that the positioning block can be freely installed, but also avoids shaking after assembly, thereby ensuring the angular accuracy of the inner plate 13 during gluing; the second pin hole 30 has high processing accuracy and fits tightly with the outer diameter of the second pin 10. The torque is effectively transmitted through interference fit or transition fit, preventing relative rotation between the support plate 9 and the core shaft 6 due to force, thereby ensuring the stable position of the inner plate 13 during the gluing process.

[0066] See also Figure 8 The surface of the second angular positioning block 11 is provided with a second screw hole 24. The connecting end of the positioning screw 12 passes through the second screw hole 24 and is screwed to the surface of the support plate 9. Figure 9 The second screw hole 24 is opened to form a receiving groove 25, and the control end of the positioning screw 12 is located inside the receiving groove 25. The size of the receiving groove 25 matches the shape of the control end of the positioning screw 12 to ensure that the head of the screw is completely embedded in the groove after being tightened, so as to avoid the protrusion of the control end affecting the installation of the second angular positioning block 11 or interfering with other components; at the same time, the groove wall of the receiving groove 25 is chamfered to reduce scratches on the operator's hands during assembly, improve operational safety, and facilitate subsequent disassembly and maintenance of the positioning screw 12.

[0067] When using this tool:

[0068] First, remove the pressing plate 8 and the nut 17. Apply adhesive to the outer circle of the inner plate 13 and place it on the support plate 9 so that the opening groove of the inner plate 13 is aligned with the second angular positioning block 11.

[0069] Then the fairing shell 7 is placed on the bottom plate 1 and positioned using the first angular positioning block 2 and the fairing shell 7 positioning ring 4 .

[0070] Finally, place the pressing plate 8 on the fairing shell 7, tighten the nut 17 to press it, and after curing, remove the pressing plate 8 and the nut 17 to take out the product.

[0071] The gluing tool for the propeller fairing and the inner plate has the following working process: first, the inner hole of the support plate 9 is interference-fitted with the core shaft 6 to achieve a stable connection, the second pin 10 is installed on the upper surface of the support plate 9 and cooperates with the corresponding pin hole of the core shaft 6 to determine the angular relationship, the second angular positioning block 11 is installed into the positioning groove 19 of the support plate 9 through a clearance fit, and the positioning screw 12 on its surface is tightened to lock the angular position, thus constructing a complete positioning system of "stable foundation - precise angle positioning - external force resistance" for the gluing of the inner plate 13; then remove the pressure plate 8 and Nut 17, place the inner plate 13 coated with adhesive on the support plate 9 and align its open groove with the second angular positioning block 11; then place the fairing shell 7 on the base plate 1, and use the first angular positioning block 2 and the positioning ring 4 to position it; finally, place the pressure plate 8 on the fairing shell 7, tighten the nut 17 to press it, and after curing, remove the pressure plate 8 and nut 17 to take out the product. This process ensures the positioning accuracy and structural stability of the bonding of the inner plate 13 and the overall assembly quality of the fairing through the synergistic effect of various structures.

[0072] It should be noted that, in this document, relational terms such as first and second, etc., are used only to distinguish one entity or operation from another entity or operation, and do not necessarily require or imply any such actual relationship or order between these entities or operations. Moreover, the terms "include", "comprises" or any other variations thereof are intended to cover non-exclusive inclusion, so that a process, method, article or device that includes a series of elements includes not only those elements, but also other elements not explicitly listed, or also includes elements inherent to such process, method, article or device. Although embodiments of the present invention have been shown and described, it will be understood by those skilled in the art that various changes, modifications, substitutions and variations may be made to these embodiments without departing from the principles and spirit of the invention, and the scope of the invention is defined by the appended claims and their equivalents.

Claims

1. A bonding tool for propeller fairing and inner plate, characterized in that: include: A base plate (1) and a support plate (9), wherein a first angular positioning block (2) is installed on the upper surface of the base plate (1), a fixing screw (14) is screwed onto the surface of the first angular positioning block (2), and hanging rings (3) are provided at the four corners of the upper surface of the base plate (1); A positioning ring (4) is provided on the upper surface of the base plate (1), a third pin (15) is inserted into the upper surface of the positioning ring (4), a core shaft (6) is installed on the upper surface of the base plate (1), a first pin (5) is inserted into the upper surface of the core shaft (6), the core shaft (6) and the base plate (1) are installed and positioned by interference fit, and the first pin (5) is used to determine the angular relationship; A fairing shell (7) is arranged on the upper surface of the base plate (1), and the surface of the fairing shell (7) is evenly distributed with n-shaped door holes. The n-shaped door holes of the fairing shell (7) and the first angular positioning block (2) are positioned by clearance fit, and the surface of the first angular positioning block (2) is screwed with a fixing screw (14); A pressure plate (8) is arranged on the upper surface of the fairing shell (7), and screw rods (16) are evenly distributed on the surface of the pressure plate (8). The bottom ends of the screw rods (16) are connected to the bottom plate (1), and nuts (17) are screwed on the upper surfaces of the screw rods (16); An inner plate (13) is installed on the upper surface of the support disc (9), and the inner hole of the support disc (9) is interference-fitted with the core shaft (6); A second pin (10) is provided on the upper surface of the support plate (9), wherein the support plate (9) and the core shaft (6) determine an angular relationship through the second pin (10); The second angular positioning block (11) is arranged on the outer ring of the support plate (9), and a positioning screw (12) is screwed on the surface of the second angular positioning block (11).

2. A propeller fairing and inner plate bonding tool according to claim 1, characterized in that: The four corners of the upper surface of the base plate (1) are provided with mounting holes (18), the inner walls of the mounting holes (18) are provided with threaded grooves, and the bottoms of the hanging rings (3) are screwed into the interiors of the mounting holes (18).

3. The gluing tool for a propeller fairing and an inner plate according to claim 1, characterized in that: A mounting groove (20) is provided on the surface of the positioning ring (4), and the first angular positioning block (2) is mounted inside the mounting groove (20).

4. The gluing tool for a propeller fairing and an inner plate according to claim 1, characterized in that: A first pin hole (21) is provided on the upper surface of the positioning ring (4) at a position corresponding to the third pin (15), and the third pin (15) is inserted into the interior of the first pin hole (21).

5. The gluing tool for a propeller fairing and an inner plate according to claim 1, characterized in that: A first screw hole (22) is provided on the surface of the first angular positioning block (2), the fixing screw (14) is screwed into the interior of the first screw hole (22), a hidden groove (23) is provided on the surface of the first screw hole (22), and the control end of the fixing screw (14) is located inside the hidden groove (23).

6. The gluing tool for a propeller fairing and an inner plate according to claim 1, characterized in that: The bottom end of each screw rod (16) is provided with a fixing head (27), and the upper surface of the base plate (1) and the corresponding position of the screw rod (16) are provided with fixing holes (28), and the fixing heads (27) are installed inside the fixing holes (28).

7. The gluing tool for a propeller fairing and an inner plate according to claim 1, characterized in that: The surface of the pressure plate (8) and the corresponding position of the screw rod (16) are both provided with a mounting opening (26), the top of the screw rod (16) is provided with a connector (29), the connector (29) passes through the interior of the mounting opening (26), and the bottom of the nut (17) is in close contact with the opening of the mounting opening (26).

8. The gluing tool for a propeller fairing and an inner plate according to claim 1, characterized in that: A positioning groove (19) is provided on the surface of the support plate (9), and the second angular positioning block (11) is installed in the positioning groove (19) of the support plate (9) through clearance fit.

9. The gluing tool for a propeller fairing and an inner plate according to claim 1, characterized in that: A second pin hole (30) is provided on the upper surface of the support plate (9) at a position corresponding to the second pin (10), and the second pin (10) is installed inside the second pin hole (30).

10. The gluing tool for a propeller fairing and an inner plate according to claim 1, characterized in that: A second screw hole (24) is provided on the surface of the second angular positioning block (11), and the connecting end of the positioning screw (12) passes through the second screw hole (24) and is screwed to the surface of the support plate (9). The opening of the second screw hole (24) is provided with a receiving groove (25), and the control end of the positioning screw (12) is located inside the receiving groove (25).

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