Universal shape-preserving tool

Abstract

The invention provides a universal shape-preserving tool, and belongs to the technical field of aviation equipment manufacturing. The shape-preserving frame is detachably connected with the bottom frame through a positioning assembly, a connecting seat is arranged on the shape-preserving frame, and the connecting seat is used for installing a product on the shape-preserving frame; the positioning assembly comprises a locking structure, a mounting plate, a locking seat, a positioning pin and a butt-joint plate, the mounting plate is fixed to the bottom frame, the locking seat is located on the side, facing the bottom frame, of the mounting plate, a groove for containing the locking seat is formed in the bottom frame, a positioning hole is formed in the locking seat, the butt-joint plate is fixed to the shape-preserving frame, and the positioning pin is fixed to the side, facing the shape-preserving frame, of the butt-joint plate. When the butt-joint plate installed on the shape-preserving frame is in butt joint with the installation plate installed on the bottom frame, the positioning pins are inserted into the positioning holes, and the locking structures are used for locking the positions, relative to the installation plate, of the positioning pins inserted into the positioning holes. And high interchangeability and flexibility are achieved while high precision is guaranteed, and therefore the production efficiency and the product quality in the aircraft manufacturing process are remarkably improved.

Description

Technical Field

[0001] This application relates to the field of aerospace equipment manufacturing, and in particular to a general-purpose conformal tooling. Background Technology

[0002] In modern aerospace manufacturing, the assembly and machining of aircraft structural components, skins, frames, and other parts require highly precise positioning and fixing to ensure the final product's geometric shape, dimensional accuracy, and the coordination between components. Therefore, conformal tooling, as an important piece of process equipment, plays an indispensable role in aircraft manufacturing.

[0003] Traditional conformal tooling is typically designed for specific workstations or parts, exhibiting high specialization and customization, and does not participate in product positioning. Traditional conformal tooling has the following problems: Lack of interchangeability: Traditional conformal tooling is often designed for a specific workstation or part, and cannot be flexibly switched between different workstations, resulting in resource waste and low production efficiency.

[0004] Insufficient positioning accuracy: Due to the fixed tooling structure and limited adjustment range, it is difficult to meet the requirements of high-precision assembly in multi-station applications, which can easily lead to cumulative errors and affect the quality of the final product.

[0005] High manufacturing costs: To meet the needs of different workstations, a variety of special tooling needs to be designed and manufactured, resulting in long development cycles and high costs, especially in the mass production of complex aircraft models. Summary of the Invention

[0006] In view of this, this application provides a universal conformal tooling that solves the problems in the prior art, ensuring high precision while possessing high interchangeability and flexibility, thereby significantly improving production efficiency and product quality in the aircraft manufacturing process.

[0007] The general conformal tooling provided in this application adopts the following technical solution: A general conformal tooling, comprising: Base frame; The conformal frame is detachably connected to the base frame via a positioning component. The conformal frame is provided with a connecting seat for mounting the product on the conformal frame. The positioning assembly includes a locking structure, a mounting plate, a locking seat, a positioning pin, and a docking plate. The mounting plate is fixed to the base frame. The locking seat is located on the side of the mounting plate facing the base frame. The base frame has a groove for accommodating the locking seat. The locking seat has a positioning hole. The docking plate is fixed to the conformal frame. The positioning pin is fixed on the side of the docking plate facing the conformal frame. When the docking plate mounted on the conformal frame and the mounting plate mounted on the base frame are docked, the positioning pin is inserted into the positioning hole. The locking structure is used to lock the position of the positioning pin inserted into the positioning hole relative to the mounting plate.

[0008] Optionally, the locating pin and the locating hole have a polygonal cross-section in the direction perpendicular to the length of the locating pin.

[0009] Optionally, the cross-section of the positioning pin and the positioning hole perpendicular to the length direction of the positioning pin is a regular polygon; The locking structure includes a locating groove on each side of the locating pin and a piston rod located within the locking seat; Each side of the locking seat is provided with a piston hole perpendicular to the side of the positioning hole. Each piston hole is provided with a piston rod. One end of the piston rod is used to engage with the positioning groove. A sealing cover is provided on the outer side of the locking seat to close the piston hole. A tension spring is provided between the sealing cover and the piston rod. The two ends of the tension spring are fixedly connected to the sealing cover and the piston rod. The tension spring is used to apply a force away from the positioning pin to the piston rod. The locking seat has a first air inlet on the side facing away from the conformal frame, and a second air inlet is provided on the inner wall of the piston hole. The second air inlet is located between the piston rod and the sealing cover. The first air inlet and the second air inlet are connected. The first air inlet is provided with an air nozzle, which is used to connect compressed air.

[0010] Optionally, the locating pin and the locating hole are equilateral triangles.

[0011] Optionally, the front section of the piston rod is hemispherical, the positioning groove is a strip-shaped positioning groove, the cross-section of the strip-shaped positioning groove is arc-shaped, the radius of the front section of the piston rod is not greater than the radius of the arc-shaped inner wall of the positioning groove, and the radius of the front section of the piston rod is not less than 50% of the radius of the arc-shaped inner wall of the positioning groove.

[0012] Optionally, the sealing cap and the piston hole are threaded together.

[0013] In summary, this application includes the following beneficial technical effects: This conformal fixture, through positioning components and the base frame, enables rapid interchangeability and positioning of products at different workstations. It is suitable for applications where conformal tooling needs to be interchanged across multiple workstations. Attached Figure Description

[0014] To more clearly illustrate the technical solutions of the embodiments of this application, the drawings used in the embodiments will be briefly introduced below. Obviously, the drawings described below are only some embodiments of this application. For those skilled in the art, other drawings can be obtained based on these drawings without creative effort.

[0015] Figure 1 This is a schematic diagram of the overall structure of the general conformal tooling used in this application; Figure 2 This is a structural schematic diagram of the mounting plate and the mating plate of this application; Figure 3 This is a schematic diagram of the positioning pin, locking seat, and locking structure of this application; Figure 4 This is a schematic diagram of the locking and positioning pins of the locking structure in this application; Figure 5 This is a schematic diagram of the first and second air inlets of this application.

[0016] Explanation of reference numerals in the attached drawings: 1. Base frame; 2. Conformal frame; 21. Connecting seat; 3. Positioning assembly; 4. Locking structure; 41. Positioning groove; 42. Piston rod; 43. Piston hole; 44. Sealing cover; 45. Tension spring; 46. First air inlet; 47. Second air inlet; 5. Mounting plate; 6. Locking seat; 61. Positioning hole; 7. Positioning pin; 8. Connecting plate. Detailed Implementation

[0017] The embodiments of this application will now be described in detail with reference to the accompanying drawings.

[0018] The following specific examples illustrate the implementation of this application. Those skilled in the art can easily understand other advantages and effects of this application from the content disclosed in this specification. Obviously, the described embodiments are only a part of the embodiments of this application, and not all of them. This application can also be implemented or applied through other different specific embodiments, and the details in this specification can also be modified or changed based on different viewpoints and applications without departing from the spirit of this application. It should be noted that, in the absence of conflict, the following embodiments and features in the embodiments can be combined with each other. Based on the embodiments in this application, all other embodiments obtained by those skilled in the art without creative effort are within the scope of protection of this application.

[0019] It should be noted that various aspects of embodiments within the scope of the appended claims are described below. It will be apparent that the aspects described herein can be embodied in a wide variety of forms, and any particular structure and / or function described herein is merely illustrative. Based on this application, those skilled in the art will understand that one aspect described herein can be implemented independently of any other aspect, and two or more of these aspects can be combined in various ways. For example, any number of aspects set forth herein can be used to implement the device and / or practice the method. Additionally, this device and / or method can be implemented using structures and / or functionalities other than one or more of the aspects set forth herein.

[0020] It should also be noted that the illustrations provided in the following embodiments are only schematic representations of the basic concept of this application. The illustrations only show the components related to this application and are not drawn according to the number, shape and size of the components in actual implementation. In actual implementation, the form, quantity and proportion of each component can be arbitrarily changed, and the layout of the components may also be more complex.

[0021] Furthermore, specific details are provided in the following description to facilitate a thorough understanding of the examples. However, those skilled in the art will understand that the described aspects can be practiced without these specific details.

[0022] This application provides a general conformal tooling.

[0023] like Figures 1 to 3 As shown, a general conformal tooling includes: Base frame 1 serves as the base for the entire tooling; The conformal frame 2 is detachably connected to the base frame 1 via the positioning component 3. The conformal frame 2 is provided with a connecting seat 21, which is used to install the product on the conformal frame 2. The positioning assembly 3 includes a locking structure 4, a mounting plate 5, a locking seat 6, a positioning pin 7, and a docking plate 8. The mounting plate 5 is fixed on the base frame 1. The locking seat 6 is located on the side of the mounting plate 5 facing the base frame 1. The base frame 1 has a groove for accommodating the locking seat 6. The locking seat 6 has a positioning hole 61. The docking plate 8 is fixed on the conformal frame 2. The positioning pin 7 is fixed on the side of the docking plate 8 facing the conformal frame 2. When the docking plate 8 mounted on the conformal frame 2 and the mounting plate 5 mounted on the base frame 1 are docked, the positioning pin 7 is inserted into the positioning hole 61. The locking structure 4 is used to lock the position of the positioning pin 7 inserted into the positioning hole 61 relative to the mounting plate 5.

[0024] In this application, the product is fixed to the conformal frame 2 via the connecting seat 21, and the conformal frame 2 can be accurately installed on the base frame 1 via the positioning component 3; the conformal frame 2 can be interchanged on different base frames 1, and the interchange position is accurate, thereby realizing flexible and accurate switching of the product between different workstations; improving the accuracy of the product after assembly.

[0025] Specifically, the locating pin 7 and the locating hole 61 have polygonal cross-sections perpendicular to the length direction of the locating pin 7.

[0026] The positioning pin 7 and the positioning hole 61 have a regular polygonal cross section perpendicular to the length direction of the positioning pin 7. In the embodiment of this application, the positioning pin 7 and the positioning hole 61 are equilateral triangles.

[0027] like Figures 3 to 5 As shown, the locking structure 4 includes a positioning groove 41 on each side of the positioning pin 7 and a piston rod 42 located inside the locking seat 6; each side of the locking seat 6 is provided with a piston hole 43 perpendicular to the side of the positioning hole 61, and each piston hole 43 is provided with the piston rod 42. One end of the piston rod 42 is used to engage with the positioning groove 41. The outer surface of the locking seat 6 is provided with a sealing cover 44 to close the piston hole 43, and a tension spring 45 is provided between the sealing cover 44 and the piston rod 42. The piston rod 42 is fixedly connected to the two ends of the piston rod 42, the sealing cap 44, and the piston rod 42. The tension spring 45 applies a force to the piston rod 42 away from the positioning pin 7. The locking seat 6 has a first air inlet 46 on its side facing away from the conformal frame 2, and a second air inlet 47 is provided on the inner wall of the piston hole 43. The second air inlet 47 is located between the piston rod 42 and the sealing cap 44. The first air inlet 46 and the second air inlet 47 are connected. The first air inlet 46 has an air nozzle for connecting compressed air. Under the pressure of compressed air, the piston rod 42 overcomes the elastic force of the tension spring 45. After the piston rod 42 moves towards the positioning pin 7, it engages with the positioning groove 41, locking the positioning pin 7 in the locking seat 6, thereby positioning and installing the conformal frame 2 on the base frame 1. When the air supply to the first air inlet 46 is disconnected, under the force of the tension spring 45, the piston rod 42 moves away from the positioning pin 7, the positioning pin 7 is unlocked, and the conformal frame 2 can be separated from the base frame 1.

[0028] The air nozzle is connected to an air intake pipe that communicates with compressed air. The air intake pipe is equipped with a solenoid valve to control the intake and shut-off of air.

[0029] The piston rod 42 has a hemispherical front section, and the positioning groove 41 is a strip-shaped positioning groove with an arc-shaped cross-section. The radius of the front section of the piston rod 42 is not greater than the radius of the arc-shaped inner wall of the positioning groove 41, and the radius of the front section of the piston rod 42 is not less than 50% of the radius of the arc-shaped inner wall of the positioning groove 41. This allows for a stable and precise fit between the piston rod 42 and the positioning pin 7.

[0030] In this embodiment, the sealing cover 44 and the piston hole 43 are threadedly connected.

[0031] The above description is merely a specific embodiment of this application, but the scope of protection of this application is not limited thereto. Any variations or substitutions that can be easily conceived by those skilled in the art within the technical scope disclosed in this application should be included within the scope of protection of this application. Therefore, the scope of protection of this application should be determined by the scope of the claims.

Claims

1. A universal conformal tooling, characterized in that, include: Base frame (1); The conformal frame (2) is detachably connected to the base frame (1) via the positioning component (3). The conformal frame (2) is provided with a connecting seat (21), which is used to install the product on the conformal frame (2). The positioning component (3) includes a locking structure (4), a mounting plate (5), a locking seat (6), a positioning pin (7), and a docking plate (8). The mounting plate (5) is fixed on the base frame (1). The locking seat (6) is located on the side of the mounting plate (5) facing the base frame (1). The base frame (1) has a groove for accommodating the locking seat (6). The locking seat (6) has a positioning hole (61). The docking plate (8) is fixed on the conformal frame (2). The positioning pin (7) is fixed on the side of the docking plate (8) facing the conformal frame (2). When the docking plate (8) installed on the conformal frame (2) and the mounting plate (5) installed on the base frame (1) are docked, the positioning pin (7) is inserted into the positioning hole (61). The locking structure (4) is used to lock the position of the positioning pin (7) inserted into the positioning hole (61) relative to the mounting plate (5).

2. The universal conformal tooling according to claim 1, characterized in that, The locating pin (7) and the locating hole (61) have polygonal cross sections perpendicular to the length direction of the locating pin (7).

3. The universal conformal tooling according to claim 2, characterized in that, The locating pin (7) and the locating hole (61) have a regular polygonal cross section perpendicular to the length direction of the locating pin (7); The locking structure (4) includes a positioning groove (41) on each side of the positioning pin (7) and a piston rod (42) located in the locking seat (6); Each side of the locking seat (6) is provided with a piston hole (43) perpendicular to the side of the positioning hole (61). Each piston hole (43) is provided with a piston rod (42). One end of the piston rod (42) is used to engage with the positioning groove (41). The outer side of the locking seat (6) is provided with a sealing cover (44) that closes the piston hole (43). A tension spring (45) is provided between the sealing cover (44) and the piston rod (42). Both ends of the tension spring (45) are fixedly connected to the sealing cover (44) and the piston rod (42). The tension spring (45) is used to apply a force away from the positioning pin (7) to the piston rod (42). The locking seat (6) has a first air inlet (46) on the side facing away from the conformal frame (2), and a second air inlet (47) is provided on the inner wall of the piston hole (43). The second air inlet (47) is located between the piston rod (42) and the sealing cover (44). The first air inlet (46) and the second air inlet (47) are connected. The first air inlet (46) is provided with an air nozzle, which is used to connect compressed air.

4. The universal conformal tooling according to claim 3, characterized in that, The positioning pin (7) and positioning hole (61) are equilateral triangles.

5. The universal conformal tooling according to claim 3, characterized in that, The piston rod (42) has a hemispherical front section, the positioning groove (41) is a strip-shaped positioning groove (41), the cross section of the strip-shaped positioning groove (41) is an arc shape, the radius of the piston rod (42) is not greater than the radius of the arc-shaped inner wall of the positioning groove (41), and the radius of the piston rod (42) is not less than 50% of the radius of the arc-shaped inner wall of the positioning groove (41).

6. The universal conformal tooling according to claim 3, characterized in that, The sealing cap (44) and the piston hole (43) are threaded together.

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