Airplane door joint assembly processing system and processing method

Abstract

This invention discloses an aircraft door connector assembly and processing system and method, comprising: a connector assembly locator, wherein the connector assembly locator is provided with a mounting bracket that mates with the door connector, and the mounting bracket is provided with an assembly hole that mates with the door connector; a precision machining drill jig assembly, including a precision machining drill jig; a connector assembly positioning pin, used for assembling and positioning the door connector on the connector assembly locator and the precision machining drill jig; and a precision machining inspection pin, used for positioning the door connector by mates with the connector hole of the precision-machined door connector. This system uses the connector assembly locator on the door assembly system as the assembly support reference for the door connector, and, in conjunction with the precision machining drill jig, accurately positions the door connector on the connector assembly locator, achieving precision machining of the connector hole on the door connector. This avoids secondary clamping of the door, resulting in high processing efficiency and ensuring excellent processing quality and consistency.

Description

Technical Field

[0001] This invention belongs to the field of assembly and processing technology, specifically relating to an assembly and processing system and method for aircraft cabin door joints. Background Technology

[0002] Aircraft cabin doors require high precision in assembly, typically necessitating precision machining of the door joints to ensure assembly accuracy. Currently, precision machining of aircraft cabin door joints primarily employs two methods: customized precision machining systems or manual hinge assembly where the door and aircraft fuselage are aligned. Customized precision machining systems are complex and costly, and the customized tooling design suffers from poor reconfigurability and versatility. This not only occupies significant storage space but also increases aircraft production costs and extends manufacturing cycles. Manual hinge assembly requires prior adjustment of the relative positions of the door and fuselage, a time-consuming and labor-intensive process. Furthermore, the relative positions are not always consistent, resulting in poor machining uniformity. Manual hinge assembly also heavily relies on operator skill, leading to poor process stability and difficulty in guaranteeing machining quality. Additionally, manual hinge assembly requires simultaneous assembly of the door and fuselage, resulting in long waiting times and extended processing cycles, making it difficult to meet production cycle requirements. Summary of the Invention

[0003] The purpose of this invention is to provide an aircraft cabin door joint assembly and processing system and method to solve the problems existing in the current assembly and processing methods in terms of processing quality, processing cost, and processing cycle.

[0004] This invention is achieved through the following technical solution:

[0005] Aircraft cabin door connector assembly and processing system, including:

[0006] A connector assembly locator is provided with a mounting bracket that mates with a hatch door connector, and the mounting bracket is provided with an assembly hole that mates with the hatch door connector.

[0007] A precision drilling jig assembly includes a precision drilling jig, which is positioned and installed on a joint assembly locator. The precision drilling jig includes two reference supports arranged opposite each other. Each reference support is provided with a reference hole that mates with the joint hole to be processed. When the precision drilling jig is installed on the joint assembly locator, the mounting support is located between the two reference supports and is arranged relatively parallel to the two reference supports.

[0008] The connector assembly positioning pin is used to position the hatch connector on the connector assembly positioner and the precision machining jig.

[0009] The precision-machined inspection pin is used to position the hatch joint by engaging with the precision-machined connector hole.

[0010] As a further improvement to the above technical solution, the joint assembly locator is installed in the hatch assembly system.

[0011] As a further improvement to the above technical solution, the precision machining drill jig assembly includes a guide drill sleeve, which can be fitted into the reference hole and is detachably connected to the reference hole.

[0012] As a further improvement to the above technical solution, a drill bushing positioning head is provided at one end of the guide drill bushing, a locking step is provided on the drill bushing positioning head, and a locking element that can press the locking step is provided on the reference support.

[0013] As a further improvement to the above technical solution, the precision drilling jig includes a horizontal positioning plate that mates with the upper end face of the joint assembly locator and / or a side positioning plate that mates with one side of the joint assembly locator. The horizontal positioning plate and the side positioning plate are provided with fixing holes for fixing the precision drilling jig and positioning holes for positioning the precision drilling jig.

[0014] As a further improvement to the above technical solution, the joint assembly positioning pin includes a reference mating section for mating with the reference hole and a positioning mating section for mating with the assembly hole and the pre-made hole before the door joint is machined.

[0015] As a further improvement to the above technical solution, the precision machining inspection pin includes a drill bushing mating section for mating with the guide drill bushing and a machining positioning section for mating with the assembly hole and the joint hole after machining the hatch joint.

[0016] On the other hand, the present invention also relates to an aircraft door joint assembly and processing method based on the aforementioned aircraft door joint assembly and processing system, comprising the following steps:

[0017] S1. Position and install the main frame of the hatch and the hatch connector on the hatch assembly system. The steps of positioning and installing the hatch connector on the hatch assembly system include assembling and positioning the hatch connector on the connector assembly locator and the precision machining jig of the hatch assembly system.

[0018] S2. Install guide drill bushings on the precision machining drill jig and perform precision machining on the joint hole of the hatch joint;

[0019] S3. After completing the machining of one connector hole, install a precision machining inspection pin on the precision machining jig. The precision machining inspection pin and the precision machined connector hole are matched to position the hatch connector. Then, the other holes on the hatch connector are precision machined.

[0020] As a further improvement to the above technical solution, step S1, which involves assembling and positioning the hatch joint on the joint assembly locator and the precision machining jig, includes:

[0021] The precision-machined drill jig is positioned and installed on the joint assembly locator. Then, the hatch joint is fitted and installed at the corresponding position of the mounting bracket on the joint assembly locator. The joint assembly locating pin is then installed on the precision-machined drill jig. The joint assembly locating pin passes through the reference hole on the precision-machined drill jig, the pre-drilled hole on the hatch joint, and the assembly hole on the mounting bracket in sequence to assemble and position the hatch joint.

[0022] Compared with the prior art, the present invention has the following advantages and beneficial effects:

[0023] This system uses the joint assembly locator on the hatch assembly system as the support reference for hatch joint assembly. With the help of precision drilling jig, the hatch joint is accurately positioned on the joint assembly locator, realizing the precision machining of the joint hole on the hatch joint. This avoids the secondary clamping of the hatch, resulting in high processing efficiency and ensuring good processing quality and consistency.

[0024] The processing system and method can be used to process door joints in an assembled state, ensuring that the processed door joints can meet the assembly accuracy requirements. This enables the "assembly without fitting" of aircraft doors, greatly improving the efficiency of aircraft manufacturing and shortening the manufacturing cycle. Attached Figure Description

[0025] To more clearly illustrate the technical solutions of the embodiments of the present invention, the accompanying drawings in the embodiments will be briefly described below. It should be understood that the following drawings only show some embodiments of the present invention and should not be regarded as a limitation on the scope. For those skilled in the art, other related drawings can be obtained based on these drawings without creative effort.

[0026] Figure 1 This is a schematic diagram of the overall structure of the aircraft cabin door joint assembly and processing system according to an embodiment of the present invention.

[0027] Figure 2 This is a partial schematic diagram of the installation structure of the precision machining drill jig assembly in the aircraft cabin door joint assembly and processing system according to an embodiment of the present invention.

[0028] Figure 3 This is a schematic diagram of the assembly of the precision machining drill jig assembly on the joint assembly locator in the aircraft door joint assembly and processing system of this invention.

[0029] Figure 4 This is a schematic diagram of the precision machining drill jig structure in the aircraft cabin door joint assembly and processing system according to an embodiment of the present invention.

[0030] Figure 5 This is a schematic diagram of the guide drill bushing structure in the aircraft cabin door joint assembly and processing system according to an embodiment of the present invention.

[0031] Figure 6 This is a schematic diagram of the joint assembly positioning pin structure in the aircraft cabin door joint assembly and processing system according to an embodiment of the present invention.

[0032] Figure 7 This is a schematic diagram of the precision machining and inspection pin structure in the aircraft cabin door joint assembly and processing system according to an embodiment of the present invention.

[0033] Figure 8 This is a schematic diagram of the door joint assembly structure in the aircraft door joint assembly and processing system according to an embodiment of the present invention.

[0034] in:

[0035] 1. Door assembly system; 11. Joint assembly locator; 111. Mounting support; 112. Assembly hole;

[0036] 2. Precision machining of drill jig components;

[0037] 21. Precision machining of drill jig; 211. Reference support; 212. Reference hole; 213. Horizontal positioning plate; 214. Side positioning plate; 215. Fixing hole; 216. Positioning hole.

[0038] 22. Guide drill bushing; 221. Drill bushing positioning head; 222. Locking step; 223. Locking component;

[0039] 23. Joint assembly positioning pin; 231. Reference mating section; 232. Positioning mating section;

[0040] 24. Precision machining inspection pin; 241. Drill bushing mating section; 242. Machining positioning section;

[0041] 3. Connector; 31. Connector hole. Detailed Implementation

[0042] To make the objectives, technical solutions, and advantages of the embodiments of the present invention clearer, the technical solutions of the embodiments of the present invention will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are some embodiments of the present invention, but not all embodiments.

[0043] To ensure the assembly precision of aircraft doors onto the fuselage, high precision is required in the machining of the doors, especially the door joints. Simultaneously, the assembly and fit between the door joints and the fuselage must be precise. These factors present significant challenges to the assembly of aircraft doors onto the fuselage. Therefore, current assembly methods typically employ either customized precision machining systems or manual hinge assembly. As mentioned earlier, while customized precision machining systems can guarantee machining and assembly quality, they lack versatility, requiring a separate system for each aircraft model, leading to high costs. Manual hinge assembly requires assembly with the fuselage after it has been machined, resulting in a long processing cycle. Therefore, based on the need to reduce costs and ensure timely processing, research into aircraft door joint assembly systems is of great significance.

[0044] Reference Figure 1 , 2 3 and 8, the aircraft door connector assembly and processing system in this embodiment includes:

[0045] The cabin door assembly system 1 is used for the assembly of cabin doors. It can perform overall positioning and assembly of the cabin door main frame and skin. It serves as the basis for realizing the aircraft cabin door joint assembly and processing system and for accurately positioning and processing the cabin door joints on the cabin door.

[0046] The connector assembly locator 11, as part of the hatch assembly system, is used to provide positioning and support for the hatch connector when it is installed on the hatch. The connector assembly locator 11 is provided with a mounting bracket 111 that mates with the hatch connector, and the mounting bracket 111 has an assembly hole 112 that mates with the hatch connector. (Refer to...) Figure 2 The position of the joint assembly positioner 11 on the hatch assembly system can be adjusted. The vertical movement of the joint assembly positioner 11 is driven by a handwheel, thereby adjusting its height position on the hatch assembly system.

[0047] Precision machining of drill jig assembly 2, such as Figure 4 As shown, the assembly includes a precision drilling jig 21, which is positioned on the joint assembly locator 11 to determine its position within the hatch assembly system. The precision drilling jig 21 includes two opposing reference supports 211, each with a reference hole 212 for engaging with the joint hole to be machined. When the precision drilling jig is mounted on the joint assembly locator 11, the two mounting supports 111 on the joint assembly locator 11 are located between the two reference supports 211 and are parallel to them. Specifically... Figure 3 As shown.

[0048] In some embodiments of the present invention, the connector assembly locator 11 is configured in conjunction with the precision machining drill jig assembly 2, with each assembly used for positioning and assembling a hatch connector, as shown in the reference. Figure 1 and Figure 2 Multiple sets of aircraft door joint assembly and processing systems, consisting of joint assembly locators 11 and precision machining jig assemblies 2, are sequentially arranged along the longitudinal direction of the door assembly system.

[0049] In some embodiments of the present invention, the finishing drill jig 21 includes a horizontal positioning plate 213 that mates with the upper end face of the connector assembly locator and a side positioning plate 214 that mates with one side of the connector assembly locator. The horizontal positioning plate 213 and the side positioning plate 214 are provided with fixing holes 215 for fixing the finishing drill jig and positioning holes 216 for positioning the finishing drill jig, for precise positioning and fixed installation of the finishing drill jig on the connector assembly locator.

[0050] like Figure 5 The precision-machined drill jig assembly serves as the basis for machining the hatch joint holes. It also includes guide drill sleeves 22. The number of guide drill sleeves 22 corresponds to the number of joint holes to be machined on the hatch joint, based on the number of holes and machining requirements on the hatch joint. During drilling, the guide drill sleeves are fitted into the reference hole, achieving a detachable connection. At this time, the guide drill sleeves can also serve as a positioning basis for machining other joint holes. All guide drill sleeves are of the same specification, allowing for interchangeability and facilitating adaptability and convenience in actual operation.

[0051] A drill bushing positioning head 221 is provided at one end of the guide drill bushing 22 for positioning and installing the guide drill bushing on the precision drilling jig. A locking step 222 is provided on the drill bushing positioning head 221, and a locking element 223, such as a locking screw, is provided on the reference support 211 to press the locking step, thereby fixing the drill bushing positioning head on the reference support and preventing the guide drill bushing from moving in the axial direction during the drilling of the joint hole.

[0052] like Figure 6 The connector assembly positioning pin 23 is used to position the hatch connector on the connector assembly positioner and the precision machining drill jig. The connector assembly positioning pin 23 includes a reference mating section 231 for mating with a reference hole and a positioning mating section 232 for mating with the assembly hole on the reference support and the pre-set connector hole before hatch connector machining. This allows it to mate with the connector assembly positioner and the precision machining drill jig during the positioning and installation of the hatch connector, achieving precise positioning and installation of the hatch connector in the hatch assembly system. The structure using the connector assembly positioning pin for the positioning and assembly of the hatch connector is described in reference [reference needed]. Figure 8 As shown.

[0053] like Figure 7 The precision-machined inspection pin 24 is used to calibrate, position, and inspect the hatch joint by engaging with the precision-machined joint hole. The precision-machined inspection pin 24 includes a drill bushing mating section 241 for engaging with the guide drill bushing and a machining positioning section 242 for engaging with the assembly hole and the joint hole after machining the hatch joint. During the machining of the joint hole on the hatch joint, it is used to recalibrate and position the hatch joint, ensuring the relative positional accuracy between the various joint holes on the hatch structure. The precision-machined inspection pin also inspects the assembly status, such as... Figure 8 As shown.

[0054] Reference Figures 1 to 8 Based on the aircraft door connector assembly and processing system in the above embodiments, the assembly and processing method for the aircraft door connector is as follows:

[0055] S1. Position and install the main frame and skin of the hatch on the hatch assembly system, and then install the hatch connector on the main frame of the hatch. The installation of the hatch connector is based on the positioning and installation of the hatch assembly system.

[0056] The method used for installing the hatch joint on the hatch assembly system is as follows:

[0057] The precision drill jig is positioned and installed on each joint assembly positioner on the door assembly system. The position of the joint assembly positioner on the door assembly system corresponds to the spatial position of the door joint in the aircraft door.

[0058] Then, the hatch connector is fitted and installed onto the corresponding position of the mounting bracket on the connector assembly locator.

[0059] Then, the connector assembly positioning pin is assembled on the precision-machined drill jig. The connector assembly positioning pin passes through the reference hole on the precision-machined drill jig, the pre-drilled hole on the hatch connector, and the assembly hole on the mounting support in sequence. Through the cooperation between the reference mating section of the connector assembly positioning pin and the reference hole, and the cooperation between the positioning mating section and the pre-drilled hole before the hatch connector is machined, the precise positioning and assembly of the hatch connector on the hatch assembly assembly system and the connector assembly positioning device are achieved.

[0060] S2. After completing the positioning and assembly of the hatch joint, install guide drill sleeves on each reference hole of the precision machining drill jig to perform precision machining on the joint hole of the hatch joint.

[0061] S3. After completing the machining of one joint hole on the hatch joint, install a precision machining inspection pin in the guide drill sleeve corresponding to the joint hole. The drill sleeve mating section of the precision machining inspection pin mates with the guide drill sleeve. Through the mating of its machining positioning section with the machined joint hole, the positioning of the hatch joint and the machining of the joint hole are verified. On this basis, the other holes on the hatch joint are precision machined.

[0062] After the holes on the hatch joint are machined, a precision inspection pin is used to inspect the machining quality and accuracy of the joint holes on the hatch joint.

[0063] Following the above method, complete the machining of the joint holes on the other hatch joints.

[0064] In the description of this invention, it should be noted that the terms "center," "upper," "lower," "left," "right," "vertical," "horizontal," "inner," and "outer," etc., used to indicate the orientation or positional relationship are based on the orientation or positional relationship shown in the accompanying drawings, or the orientation or positional relationship that the product of this invention is usually placed in during use. They are only for the convenience of describing this invention and simplifying the description, and are not intended to indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation. Therefore, they should not be construed as limitations on this invention.

[0065] Furthermore, the use of terms such as "horizontal" and "vertical" in the description of this invention does not imply that the components are required to be absolutely horizontal or suspended, but rather that they can be slightly tilted. For example, "horizontal" simply means that its direction is more horizontal than "vertical," and does not mean that the structure must be completely horizontal, but can be slightly tilted.

[0066] In the description of this invention, it should also be noted that, unless otherwise explicitly specified and limited, the terms "set," "install," "connect," and "link" should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral connection; they can refer to a mechanical connection or an electrical connection; they can refer to a direct connection or an indirect connection through an intermediate medium; and they can refer to the internal connection of two components. Those skilled in the art can understand the specific meaning of the above terms in this invention based on the specific circumstances.

[0067] The above description is merely a preferred embodiment of the present invention and is not intended to limit the present invention in any way. Any simple modifications or equivalent changes made to the above embodiments based on the technical essence of the present invention shall fall within the protection scope of the present invention.

Claims

1. An aircraft cabin door joint assembly and processing system, characterized in that, include: A connector assembly locator is provided with a mounting bracket that mates with a hatch door connector, and the mounting bracket is provided with an assembly hole that mates with the hatch door connector. A precision drilling jig assembly includes a precision drilling jig, which is positioned and installed on a joint assembly locator. The precision drilling jig includes two reference supports arranged opposite each other. Each reference support is provided with a reference hole that mates with the joint hole to be processed. When the precision drilling jig is installed on the joint assembly locator, the mounting support is located between the two reference supports and is arranged relatively parallel to the two reference supports. The connector assembly positioning pin is used to position the hatch connector on the connector assembly positioner and the precision machining jig. Precision-machined inspection pins are used to position the hatch joint by engaging with the precision-machined connector hole. The joint assembly locator is installed in the hatch assembly system.

2. The aircraft door connector assembly and processing system according to claim 1, characterized in that, The precision machining drill jig assembly includes a guide drill sleeve, which can be fitted into a reference hole and is detachably connected to the reference hole.

3. The aircraft door joint assembly and processing system according to claim 2, characterized in that, One end of the guide drill bushing is provided with a drill bushing positioning head, the drill bushing positioning head is provided with a locking step, and the reference support is provided with a locking element that can press the locking step.

4. The aircraft cabin door joint assembly and processing system according to claim 2, characterized in that, The finishing drill jig includes a horizontal positioning plate that mates with the upper end face of the joint assembly locator and / or a side positioning plate that mates with one side of the joint assembly locator. The horizontal positioning plate and the side positioning plate are provided with fixing holes for fixing the finishing drill jig and positioning holes for positioning the finishing drill jig.

5. The aircraft door connector assembly and processing system according to claim 1, characterized in that, The joint assembly positioning pin includes a reference mating section for mating with the reference hole and a positioning mating section for mating with the assembly hole and the pre-made hole before the door joint is machined.

6. The aircraft door joint assembly and processing system according to claim 1, characterized in that, The precision-machined inspection pin includes a drill bushing mating section for mating with the guide drill bushing and a machining positioning section for mating with the assembly hole and the joint hole after machining the hatch joint.

7. An aircraft door joint assembly and processing method based on the aircraft door joint assembly and processing system according to any one of claims 1-6, characterized in that, Includes the following steps: S1. Position and install the main frame of the hatch and the hatch connector on the hatch assembly system. The steps of positioning and installing the hatch connector on the hatch assembly system include assembling and positioning the hatch connector on the connector assembly locator and the precision machining jig of the hatch assembly system. S2. Install guide drill bushings on the precision machining drill jig and perform precision machining on the joint hole of the hatch joint; S3. After completing the machining of one connector hole, install a precision machining inspection pin on the precision machining jig. The precision machining inspection pin and the precision machined connector hole are matched to position the hatch connector. Then, the other holes on the hatch connector are precision machined.

8. The aircraft cabin door joint assembly and processing method according to claim 7, characterized in that, In step S1, the steps of assembling and positioning the hatch joint on the joint assembly locator and the precision drilling jig include: positioning and installing the precision drilling jig onto the joint assembly locator, then fitting and installing the hatch joint onto the position corresponding to the mounting bracket on the joint assembly locator, assembling the joint assembly locating pin on the precision drilling jig, and the joint assembly locating pin passing through the reference hole on the precision drilling jig, the pre-drilled hole on the hatch joint, and the assembly hole on the mounting bracket in sequence to assemble and position the hatch joint.

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