Aircraft cabin door joint assembly processing system and processing method

Abstract

The invention discloses an aircraft cabin door joint assembly machining system and method, and the system comprises a joint assembly positioner which is provided with a mounting support matched with a cabin door joint, and the mounting support is provided with an assembly hole matched with the cabin door joint; the finish machining drill jig assembly comprises a finish machining drill jig; the joint assembly positioning pin is used for assembling and positioning the positions of the cabin door joint on the joint assembly positioner and the finish machining drill jig; and the finish machining detection pin is used for being matched with the joint hole of the finish-machined cabin door joint to position the cabin door joint. According to the system, the joint assembly positioner on the cabin door combined assembly system serves as a cabin door joint assembly supporting reference, the cabin door joint is accurately positioned on the joint assembly positioner in cooperation with the finish machining drill jig, finish machining of a joint hole in the cabin door joint is achieved, secondary clamping of the cabin door is avoided, the machining efficiency is high, and the production cost is low. And the processing quality and the processing consistency can be well guaranteed.

Description

Technical Field

[0001] The invention belongs to the technical field of assembly processing, and in particular relates to an assembly processing system and a processing method for an aircraft cabin door joint. Background Art

[0002] The assembly accuracy of aircraft doors on aircraft is required to be high, and the aircraft door joints usually need to be fine-machined to ensure the assembly accuracy of aircraft doors. At present, the fine machining of aircraft door joints mainly adopts two methods: customized fine machining system or manual hinge matching of doors and aircraft bodies. The customized fine machining system is used for processing, and the system structure is complex and the cost is high. The customized design of tooling has poor reconfigurability and versatility, which not only takes up a lot of storage space, but also increases the production cost of the aircraft and prolongs the aircraft manufacturing cycle. The processing method of manual hinge matching of doors and aircraft bodies requires the relative position of the doors and bodies to be adjusted and determined first. Not only is the process time-consuming and labor-intensive, but the relative position of the doors and bodies is not unique each time, and the processing consistency is poor. At the same time, manual hinge matching is highly dependent on the operating skills of the operator, the processing process is poorly stable, and the processing quality is difficult to guarantee. In addition, the manual hinge matching method requires the doors and bodies to be matched at the same time, the waiting time for the door joint processing is long, and the processing cycle is long, which is difficult to meet the requirements of the production cycle. Summary of the invention

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

[0004] The present invention is achieved through the following technical solutions: Aircraft door joint assembly processing system, including: A joint assembly positioner, wherein the joint assembly positioner is provided with a mounting support that matches the hatch joint, and the mounting support is provided with an assembly hole that matches the hatch joint; A finishing jig assembly comprises a finishing jig, the finishing jig is positioned and installed on a joint assembly positioner, the finishing jig comprises two reference supports arranged opposite to each other, the reference supports are respectively provided with reference holes matched with the joint holes to be processed, when the finishing jig is installed on the joint assembly positioner, the installation support is located between the two reference supports and is arranged relatively parallel to the two reference supports; Joint assembly locating pins are used to assemble and locate the door joint on the joint assembly locator and the finishing jig; The precision-machined detection pin is used to cooperate with the precision-machined joint hole of the door joint to position the door joint.

[0005] As a further improvement to the above technical solution, the joint assembly positioner is arranged in the cabin door combination assembly system.

[0006] As a further improvement to the above technical solution, the finishing drill template assembly includes a guide drill sleeve, which can be fitted into the reference hole and detachably connected to the reference hole.

[0007] As a further improvement to the above technical solution, a drill sleeve positioning head is provided at one end of the guide drill sleeve, a locking step is provided on the drill sleeve positioning head, and a locking piece capable of pressing the locking step is provided on the reference support.

[0008] As a further improvement of the above technical solution, the finishing drill jig includes a horizontal positioning plate that cooperates with the upper end surface of the joint assembly locator and / or a side positioning plate that cooperates with the side surface of one side of the joint assembly locator, and 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.

[0009] As a further improvement to the above technical solution, the joint assembly locating pin includes a reference matching section for matching with the reference hole and a positioning matching section for matching with the assembly hole and the prefabricated hole before the door joint is processed.

[0010] As a further improvement to the above technical solution, the fine-machined inspection pin includes a drill sleeve matching section for matching with the guide drill sleeve and a processing positioning section for matching with the assembly hole and the joint hole after the hatch joint is processed.

[0011] On the other hand, the present invention also relates to an aircraft door joint assembly processing method based on the aircraft door joint assembly processing system, comprising the following steps: S1. Positioning and installing the door main frame and the door joint on the door assembly system. The step of positioning and installing the door joint on the door assembly system includes assembling and positioning the door joint on a joint assembly positioner and a finishing jig of the door assembly system. S2. Install the guide drill sleeve on the finishing drill jig and finish the joint hole of the hatch joint; S3. After completing the processing of a joint hole, a finishing inspection pin is installed on the finishing drill jig. The finishing inspection pin cooperates with the finishing joint hole to position the hatch joint, and then the other holes on the hatch joint are finished.

[0012] As a further improvement to the above technical solution, in step S1, the step of assembling and positioning the hatch door joint on the joint assembly positioner and the finishing jig comprises: Position and install the fine-machined drill jig on the joint assembly locator, then install the door joint in cooperation with the position corresponding to the mounting support on the joint assembly locator, assemble the joint assembly locating pin on the fine-machined drill jig, and pass the joint assembly locating pin through the reference hole on the fine-machined drill jig, the prefabricated hole on the door joint, and the assembly hole on the mounting support in sequence to assemble and position the door joint.

[0013] Compared with the prior art, the present invention has the following advantages and beneficial effects: The system uses the joint assembly locator on the door combination assembly system as the door joint assembly support reference, and cooperates with the fine machining drilling jig to accurately position the door joint on the joint assembly locator, thereby achieving fine machining of the joint holes on the door joint, avoiding secondary clamping of the door, and having high machining efficiency, and the machining quality and consistency can be well guaranteed.

[0014] The use of this processing system and processing method can realize the processing of the door joint in the assembled state, ensure that the processed door joint can well meet the requirements of assembly accuracy, and realize the "assembly but not matching" of the aircraft door, which greatly improves the efficiency of aircraft manufacturing and shortens the period required for aircraft manufacturing. BRIEF DESCRIPTION OF THE DRAWINGS

[0015] In order to more clearly illustrate the technical solutions of the embodiments of the present invention, the drawings in the embodiments will be briefly introduced below. It should be understood that the following drawings only show certain embodiments of the present invention and therefore should not be regarded as limiting the scope. For ordinary technicians in this field, other related drawings can be obtained based on these drawings without creative work.

[0016] Figure 1 The figure is a schematic diagram of the overall structure of an aircraft door joint assembly and processing system according to an embodiment of the present invention.

[0017] Figure 2 It is a partial schematic diagram of the installation structure of the finishing jig assembly in the aircraft door joint assembly processing system according to an embodiment of the present invention.

[0018] Figure 3 It is a schematic diagram of assembling a finishing jig assembly on a joint assembly positioner in an aircraft door joint assembly processing system according to an embodiment of the present invention.

[0019] Figure 4 It is a schematic diagram of the finishing drilling jig structure in the aircraft door joint assembly processing system according to an embodiment of the present invention.

[0020] Figure 5 It is a schematic diagram of the structure of a guide drill sleeve in an aircraft door joint assembly processing system according to an embodiment of the present invention.

[0021] Figure 6It is a schematic diagram of the joint assembly locating pin structure in the aircraft cabin door joint assembly processing system according to an embodiment of the present invention.

[0022] Figure 7 It is a schematic diagram of the structure of a fine-machining inspection pin in an aircraft door joint assembly processing system according to an embodiment of the present invention.

[0023] Figure 8 It is a schematic diagram of the matching assembly structure of a door joint in an aircraft door joint assembly processing system according to an embodiment of the present invention.

[0024] in: 1. Door assembly system, 11. Joint assembly positioner, 111. Mounting support, 112. Assembly hole; 2. Finishing of jig components; 21. Finishing drilling jig, 211. Reference support, 212. Reference hole, 213. Horizontal positioning plate, 214. Side positioning plate, 215. Fixing hole, 216. Positioning hole; 22. guide drill sleeve, 221. drill sleeve positioning head, 222. locking step, 223. locking piece; 23. Joint assembly positioning pin, 231. Reference matching section, 232. Positioning matching section; 24, fine machining inspection pin, 241, drill sleeve matching section, 242, machining positioning section; 3. Connector, 31. Connector hole. DETAILED DESCRIPTION

[0025] In order to make the purpose, technical solutions and advantages of the embodiments of the present invention clearer, the technical solutions in the embodiments of the present invention will be clearly and completely described below in conjunction with the drawings in the embodiments of the present invention. Obviously, the described embodiments are only part of the embodiments of the present invention, not all of the embodiments.

[0026] In order to ensure the assembly accuracy of the aircraft cabin door on the fuselage, there are very high requirements for the processing accuracy of the aircraft cabin door, especially the cabin door joint. At the same time, the assembly and matching accuracy between the cabin door joint and the fuselage must be ensured. These have brought great problems to the assembly of the aircraft cabin door on the fuselage. Therefore, the commonly used assembly processing methods are customized finishing systems or manual hinge matching of the cabin door and the aircraft fuselage. As mentioned earlier, although the customized finishing system can ensure the processing and assembly quality, it has poor versatility. Each model must be equipped with a set of such systems, resulting in high costs; and the manual hinge matching method requires the assembly processing between the fuselage and the fuselage after the fuselage is processed, resulting in a long processing cycle; Therefore, based on the needs of reducing costs and ensuring processing cycles, it is of great significance to carry out research on the aircraft cabin door joint assembly processing system on this basis.

[0027] Reference Figure 1 ,2 , 3 and 8, the aircraft door joint assembly processing system in this embodiment includes: The door assembly system 1 is used for the assembly of the door, and can perform the overall positioning and assembly of the door main frame and skin. It serves as the basis for realizing the aircraft door joint assembly and processing system and for accurately positioning and processing the door joint on the door.

[0028] The joint assembly positioner 11 is a part of the hatch assembly system, and is used to provide positioning and support for the hatch joint installed on the hatch; the joint assembly positioner 11 is provided with a mounting support 111 that matches the hatch joint, and the mounting support 111 is provided with an assembly hole 112 that matches the hatch joint. Figure 2 The position of the joint assembly locator 11 on the hatch assembly system can be adjusted. The joint assembly locator 11 is driven by a hand wheel to move in the vertical direction to adjust its height position on the hatch assembly system.

[0029] Finishing jig assembly 2, such as Figure 4 As shown, it includes a finishing jig 21, which is positioned and installed on the joint assembly positioner 11 to position the finishing jig in the hatch assembly system. The finishing jig 21 includes two relatively arranged reference supports 211, and the reference supports 211 are respectively provided with reference holes 212 for cooperating with the joint holes to be processed. When the finishing jig is installed on the joint assembly positioner, the two mounting supports 111 on the joint assembly positioner 11 are located between the two reference supports 211 and are relatively parallel to the two reference supports; specifically, as shown in FIG. Figure 3 shown.

[0030] In some embodiments of the present invention, the joint assembly positioner 11 is arranged in groups with the finishing jig assembly 2, and each group is used to position and assemble a hatch joint, referring to Figure 1 and Figure 2 A plurality of aircraft door joint assembly processing systems consisting of joint assembly positioners 11 and finishing jig assemblies 2 are sequentially arranged on the door assembly system along its longitudinal direction.

[0031] In some embodiments of the present invention, the finishing drill jig 21 includes a horizontal positioning plate 213 that cooperates with the upper end surface of the joint assembly locator and a side positioning plate 214 that cooperates with the side surface of one side of the joint 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, which are used for precise positioning and fixed installation of the finishing drill jig on the joint assembly locator.

[0032] like Figure 5The finishing drill jig assembly, as the processing basis for the hatch joint hole, also includes a guide drill sleeve 22. According to the number of holes on the hatch joint and the processing requirements, the number of guide drill sleeves 22 corresponds to the number of joint holes to be processed on the hatch joint. During the drilling operation, the guide drill sleeve is matched and set in the reference hole, and a detachable connection is achieved between the reference hole. At this time, the guide drill sleeve can also be used as a positioning basis for processing other joint holes. The specifications of each guide drill sleeve are consistent, so that each drill sleeve can be interchanged to facilitate adaptability and convenience in the actual operation process.

[0033] A drill sleeve positioning head 221 is arranged at one end of the guide drill sleeve 22, which is used for positioning and installing the guide drill sleeve on the finishing drill jig; a locking step 222 is arranged on the drill sleeve positioning head 221, and a locking member 223, such as a locking screw, which can press the locking step is arranged on the reference support 211 to fix the drill sleeve positioning head on the reference support to avoid axial movement of the guide drill sleeve during the drilling process of the joint hole.

[0034] like Figure 6 The joint assembly positioning pin 23 is used to assemble and position the door joint on the joint assembly locator and the finishing jig. The joint assembly positioning pin 23 includes a reference matching section 231 for matching with the reference hole and a positioning matching section 232 for matching with the assembly hole on the reference support and the preset joint hole before the door joint is processed, so that when the door joint is positioned and installed, it can match with the joint assembly locator and the finishing jig to achieve accurate positioning and installation of the door joint in the door assembly system. The structure of using the joint assembly positioning pin to match and position the door joint, refer to Figure 8 shown.

[0035] like Figure 7 The finishing inspection pin 24 is used to calibrate and detect the hatch joint by cooperating with the finishing joint hole of the hatch joint. The finishing inspection pin 24 includes a drill sleeve matching section 241 for cooperating with the guide drill sleeve and a processing positioning section 242 for cooperating with the assembly hole and the joint hole after the hatch joint is processed. When the joint hole on the hatch joint is processed, it is used to calibrate and locate the position of the hatch joint again to ensure the relative position accuracy between the joint holes on the hatch structure. The finishing inspection pin detects the assembly state, such as Figure 8 shown.

[0036] Reference Figures 1 to 8 Based on the aircraft door joint assembly processing system in the above embodiment, the assembly processing method for the door joint on the aircraft door is as follows: S1. Position and install the door main frame, skin, etc. on the door assembly system, and then install the door joint on the door main frame. The door joint is installed based on the positioning of the door assembly system.

[0037] The method used for installing the door joint on the door assembly system is: Positioning and installing the precision-machined drilling jigs on the joint assembly positioners on the door assembly system, respectively, wherein the positions of the joint assembly positioners on the door assembly system correspond to the spatial positions of the door joints in the aircraft door; Then, the hatch door joint is installed in cooperation with the position corresponding to the mounting support on the joint assembly locator; Then, the joint assembly locating pin is assembled on the fine-machined drill jig. The joint assembly locating pin passes through the reference hole on the fine-machined drill jig, the prefabricated hole on the door joint, and the assembly hole on the mounting bracket in sequence. The precise positioning and assembly of the door joint on the door combined assembly system and the joint assembly locator are achieved through the cooperation between the reference matching section of the joint assembly locating pin and the reference hole, and between the positioning matching section and the prefabricated hole before the door joint is processed.

[0038] S2. After completing the positioning and assembly of the hatch door joint, install the guide drill sleeves on each reference hole of the fine-machining drill jig, and perform fine machining on the joint holes of the hatch door joint.

[0039] S3. After completing the processing of a joint hole on the hatch joint, install a fine processing inspection pin in the guide drill sleeve corresponding to the joint hole, and the drill sleeve matching section of the fine processing inspection pin cooperates with the guide drill sleeve. Through the cooperation between its processing positioning section and the processed joint hole, the positioning of the hatch joint and the processing of the joint hole are verified, and on this basis, the other holes on the hatch joint are fine processed.

[0040] After the hole processing on the hatch joint is completed, a finishing inspection pin is used to inspect the processing quality and accuracy of the joint hole on the hatch joint.

[0041] Refer to the above method to complete the processing of the joint holes on other door joints on the door.

[0042] In the description of the present invention, it should be noted that the terms "center", "up", "down", "left", "right", "vertical", "horizontal", "inside", "outside", etc. used to indicate the orientation or position relationship are based on the orientation or position relationship shown in the accompanying drawings, or are the orientation or position relationship commonly placed when the product of the invention is used. They are only for the convenience of describing the present invention and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and therefore cannot be understood as a limitation on the present invention.

[0043] In addition, if the terms "horizontal" or "vertical" appear in the description of the present invention, it does not mean that the components are required to be absolutely horizontal or suspended, but can be slightly tilted. For example, "horizontal" only 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.

[0044] In the description of the present invention, it is also necessary to explain that, unless otherwise clearly specified and limited, the terms "set", "install", "connect", and "connect" should be understood in a broad sense, for example, it can be a fixed connection, a detachable connection, or an integral connection; it can be a mechanical connection or an electrical connection; it can be a direct connection, or it can be indirectly connected through an intermediate medium, or it can be the internal communication of two components. For ordinary technicians in this field, the specific meanings of the above terms in the present invention can be understood according to specific circumstances.

[0045] The above description is only a preferred embodiment of the present invention and does not limit the present invention in any form. Any simple modification or equivalent change made to the above embodiment based on the technical essence of the present invention shall fall within the protection scope of the present invention.

Claims

1. Aircraft door joint assembly processing system, characterized in that: include: A joint assembly positioner, wherein the joint assembly positioner is provided with a mounting support that matches the hatch joint, and the mounting support is provided with an assembly hole that matches the hatch joint; A finishing jig assembly comprises a finishing jig, the finishing jig is positioned and installed on a joint assembly positioner, the finishing jig comprises two reference supports arranged opposite to each other, the reference supports are respectively provided with reference holes matched with the joint holes to be processed, when the finishing jig is installed on the joint assembly positioner, the installation support is located between the two reference supports and is arranged relatively parallel to the two reference supports; Joint assembly locating pins are used to assemble and locate the door joint on the joint assembly locator and the finishing jig; The precision-machined detection pin is used to cooperate with the precision-machined joint hole of the door joint to position the door joint.

2. The aircraft door joint assembly processing system according to claim 1, characterized in that: The joint assembly positioner is arranged in the cabin door assembly system.

3. The aircraft door joint assembly processing system according to claim 1, characterized in that: The finishing drill jig assembly comprises a guide drill sleeve, which can be fitted into a reference hole and detachably connected to the reference hole.

4. The aircraft door joint assembly processing system according to claim 3, characterized in that: A drill sleeve positioning head is arranged at one end of the guide drill sleeve, a locking step is arranged on the drill sleeve positioning head, and a locking piece capable of pressing the locking step is arranged on the reference support.

5. The aircraft door joint assembly processing system according to claim 3, characterized in that: The finishing drilling jig includes a horizontal positioning plate that cooperates with the upper end surface of the joint assembly locator and / or a side positioning plate that cooperates with the side surface of 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 drilling jig and positioning holes for positioning the finishing drilling jig.

6. The aircraft door joint assembly processing system according to claim 1, characterized in that: The joint assembly positioning pin comprises a reference matching section for matching with the reference hole and a positioning matching section for matching with the assembly hole and the prefabricated hole before the door joint is processed.

7. The aircraft door joint assembly processing system according to claim 1, characterized in that: The fine-machined inspection pin includes a drill sleeve matching section for matching with a guide drill sleeve and a machining positioning section for matching with an assembly hole and a joint hole after the hatch joint is machined.

8. An aircraft door joint assembly processing method based on the aircraft door joint assembly processing system according to any one of claims 1 to 7, characterized in that: The following steps are involved: S1. Positioning and installing the door main frame and the door joint on the door assembly system. The step of positioning and installing the door joint on the door assembly system includes assembling and positioning the door joint on a joint assembly positioner and a finishing jig of the door assembly system. S2. Install the guide drill sleeve on the finishing drill jig and finish the joint hole of the hatch joint; S3. After completing the processing of a joint hole, a finishing inspection pin is installed on the finishing drill jig. The finishing inspection pin cooperates with the finishing joint hole to position the hatch joint, and then the other holes on the hatch joint are finished.

9. The aircraft door joint assembly processing method according to claim 8, characterized in that: In step S1, the step of assembling and positioning the door joint on the joint assembly positioner and the finishing jig includes: Position and install the fine-machined drill jig on the joint assembly locator, then install the door joint in cooperation with the position corresponding to the mounting support on the joint assembly locator, assemble the joint assembly locating pin on the fine-machined drill jig, and pass the joint assembly locating pin through the reference hole on the fine-machined drill jig, the prefabricated hole on the door joint, and the assembly hole on the mounting support in sequence to assemble and position the door joint.

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