Aircraft wing box leading edge rapid positioning equipment and method based on horizontal assembly

Abstract

The present application discloses a rapid positioning equipment and method for the leading edge of an aircraft wing box based on horizontal assembly, comprising a tooling flag assembly, a plurality of receivers and a crossbeam assembly, wherein the length direction of the crossbeam assembly is consistent with the wingspan direction, the receiver is a four-slide telescopic structure with a wedge-shaped locking mechanism, one end of the tooling flag is connected to the front beam of the wing box, and can be hoisted from the leading edge assembly station to the wing box assembly station together with the front beam components, and the other end is connected to the receiver, and a plurality of receivers are installed on the upper surface of the crossbeam along the length direction of the crossbeam. The method and equipment described in the present application realize the rapid and accurate positioning of the leading edge components during the horizontal assembly process of the wing box, and play a supporting role in the wing box product.

Description

Technical Field

[0001] The present application belongs to the technical field of horizontal assembly of aircraft wings, and in particular relates to a rapid positioning device and method for the leading edge of an aircraft wing box during horizontal assembly. Background Art

[0002] In the field of aircraft manufacturing, aircraft parts assembly is another important link after parts processing that determines the quality, delivery cycle and production cost of the entire aircraft. Wing box assembly is an important link in aircraft assembly. Its assembly quality directly affects the assembly accuracy of each active wing surface connected to it and the accuracy of the wing's aerodynamic shape. It is the key to ensuring the overall quality of the entire aircraft.

[0003] With the continuous development and progress of aircraft digital assembly technology, for large aircraft wing box assembly, in the traditional vertical assembly method, operators are prone to stepping on the wing wall panels when installing the internal parts of the wing box cavity, and the temperature difference along the height direction of the factory building has a great impact on the assembly accuracy of the wing box. Therefore, the horizontal assembly technology of aircraft wing boxes came into being. In response to the assembly requirements of the leading edge components in the horizontal assembly process of the wing box, a rapid positioning method and equipment for the leading edge of the aircraft wing box in a horizontal assembly environment is proposed, so as to achieve rapid and accurate positioning of the leading edge of the wing box, avoid the shortcomings of the vertical assembly of the wing box, ensure that the various assembly technical indicators of the wing box meet the requirements, and ensure reliable assembly quality and stable production capacity. Summary of the invention

[0004] The purpose of the present application is to provide a method and equipment for quickly positioning the leading edge of an aircraft wing box based on horizontal assembly, which is suitable for quickly positioning and installing the leading edge of a wing box in a horizontal assembly environment, and at the same time plays a supporting role for the wing box.

[0005] In order to achieve the above objectives, this application adopts the following technical solutions:

[0006] A rapid positioning equipment for the leading edge of an aircraft wing box based on horizontal assembly, comprising a tooling flag assembly, a plurality of receivers and a crossbeam assembly. The crossbeam assembly is placed at the leading edge of an assembly station, with its length direction being consistent with the wingspan direction. A plurality of identical receivers are fixedly connected to the crossbeam assembly. The tooling flag assembly comprises a plurality of tooling flags with the same structure but different sizes. One end of the plurality of tooling flags is connected to the web of a wing box front beam at a corresponding position, and after becoming one, the tooling flags are hoisted as a whole above the crossbeam assembly of the assembly station. After falling, the other ends of the plurality of tooling flags are matched with and connected to the receivers and locked, so as to position the leading edge of the wing box on the assembly station.

[0007] The tooling flag is a flag-shaped cavity structure. The front end is a profile with the shape of the front beam web surface. It is connected to the wing box front beam through a threaded connecting pin and a shoulder nut. The rear end is provided with a positioning sleeve for use with a receiver. A fixed pressure block installation groove is provided between the positioning sleeves on the tooling flag. The fixed pressure block is embedded in the groove and has a wedge-shaped structure.

[0008] The receiver includes a receiving seat, a telescopic arm, a base, a movable pressure block, a first cylinder and a second cylinder. The base is a square hollow structure fixed on the beam assembly. The telescopic arm passes through the base and is connected to the base through a slide rail slider. The second cylinder drives the telescopic arm to slide in the base. The receiving seat includes a bottom plate and a double ear piece perpendicular to the bottom plate. The double ear piece is provided with a semicircular hole that cooperates with the positioning sleeve. A movable pressure block guide groove is provided between the double ear pieces. The movable pressure block is a wedge-shaped structure that self-locks with the fixed pressure block. The movable pressure block can slide along the guide groove. The front end of the telescopic arm is fixedly connected to the bottom plate of the receiving seat. The first cylinder is connected to the movable pressure block to drive the movable pressure block to move until it is locked with the fixed pressure block.

[0009] The crossbeam includes multiple beam units of different lengths. Several partitions are arranged in the cavity of the beam unit. The partitions are connected to the inner walls of the beam units with mortise and tenon structures. Adjacent beam units are connected with bolts. The receiver base and the cylinder barrel of the second cylinder are fixed on the top of the beam unit. The bottom of the beam unit is supported and connected by columns. The columns near the root of the wing box are connected to the beam unit by adjusting bolts, and the remaining columns are connected to the beam unit through slide rails. The movement direction of the slide rails is consistent with the overall length direction of the crossbeam assembly.

[0010] The specific operation process of using this equipment to quickly locate the leading edge of the wing box is as follows:

[0011] 1. Connect all the tooling flags with the web of the wing box front beam at the leading edge assembly station through threaded connecting pins and shoulder nuts, so that the tooling flag assembly and the wing box leading edge become one, and then hoist them above the crossbeam assembly at the wing box assembly station;

[0012] 2 The piston rods of the second cylinders of all receivers extend out, pushing the telescopic arm to drive the receiving seat, the movable pressure block and the first cylinder to move to the working position;

[0013] 3. The leading edge of the wing box and the tooling flag assembly fall together and are connected to the receiver. The piston rod of the first cylinder extends to drive the movable pressing block to move until it fits with the fixed pressing block to lock the tooling flag;

[0014] 4 The remaining parts of the wing box are successively put on the rack for riveting and assembly to form a complete wing box;

[0015] 5 The piston rods of the first cylinders of all receivers are retracted, driving the movable pressure block to move until it is separated from the fixed pressure block, thus releasing the lock on the tooling flag;

[0016] 6. Lift the wing box. After the tooling flag assembly is separated from the receiver, the piston rod of the second cylinder is retracted, and the telescopic arm is pulled to drive the receiving seat, the movable pressure block and the first cylinder to return to the non-working position;

[0017] 7 The wing box falls to the transport vehicle, is transported out of the rack by the transport vehicle, the tooling flag assembly is removed, and the wing box is transferred to the next assembly station.

[0018] The beneficial effects of the present application are: through the locking and unlocking separation operations between the tooling flag and the receiver, the rapid assembly of the leading edge components during the wing box assembly process is realized, with high execution efficiency, the entire equipment has a reasonable structure, a high degree of automation, and is easy to operate, providing a solution for the rapid and accurate positioning of the leading edge of the wing box in a horizontal assembly environment. BRIEF DESCRIPTION OF THE DRAWINGS

[0019] Figure 1 It is a structural schematic diagram of a rapid positioning device for the leading edge of an aircraft wing box based on horizontal assembly;

[0020] Figure 2 It is a schematic diagram of the structure of the tooling flag;

[0021] Figure 3 is a schematic diagram of the receiver structure;

[0022] Figure 4 It is a schematic diagram of the receiving seat structure;

[0023] Figure 5 It is a schematic diagram of the structure of the beam assembly.

[0024] Explanation of numbers in the figure: 1-tooling flag assembly, 2-receiver, 3-crossbeam assembly, 4-tooling flag, 5-threaded connecting pin, 6-shoulder nut, 7-fixed pressure block, 8-positioning sleeve, 9-base, 10-telescopic arm, 11-receiving seat, 12-first cylinder, 13-second cylinder, 14-movable pressure block, 15-beam unit, 16-column, 17-adjustment bolt, 18-slide rail slider. DETAILED DESCRIPTION

[0025] The present application is described in detail below with reference to the accompanying drawings and specific implementation methods.

[0026] Referring to the attached drawings, a method and equipment for quickly positioning the leading edge of an aircraft wing box based on horizontal assembly is composed of a tooling flag assembly 1, a plurality of receivers 2, and a crossbeam assembly 3. The crossbeam assembly 3 is fixedly installed at the leading edge of the final assembly station, and its length direction is consistent with the wingspan direction. A plurality of identical receivers 2 are fixedly connected to the crossbeam assembly 3. The tooling flag assembly 1 includes a plurality of tooling flags 4 with the same structure and different sizes. One end of the plurality of tooling flags 4 is connected to the web of the wing box front beam at the corresponding position, and after being integrated, the whole is hoisted above the crossbeam assembly 3 of the final assembly station. After being dropped, the other ends of the plurality of tooling flags 4 are matched and connected with the receiver 2 and locked to position the leading edge of the wing box on the final assembly station.

[0027] The tooling flag 4 is a flag-shaped cavity structure, and the front end is a profile with the shape of the web surface of the front beam. It is connected to the front beam of the wing box through a threaded connecting pin 5 and a shoulder nut 6. The rear end is provided with a positioning sleeve 8 used in conjunction with the receiver 2. An installation groove for a fixed pressure block 7 is provided between the positioning sleeves on the tooling flag 4. The fixed pressure block 7 is a wedge-shaped structure and is embedded in the slot.

[0028] The receiver 2 includes a receiving seat 11, a telescopic arm 10, a base 9, a movable pressure block 14, a first cylinder 12 and a second cylinder 13. The base 9 is a square hollow structure and is fixed on the beam assembly 3. The telescopic arm 10 passes through the base 9 and is connected to the base 9 through a slide rail slider. The slide rail part is installed on the top and bottom surfaces of the telescopic arm 10, and the slider part is installed on the top and bottom surfaces of the inner wall of the base 9. The piston rod of the second cylinder 13 is connected to the telescopic arm 10, and the cylinder barrel part is installed on the beam assembly 3 to drive the telescopic arm 10. Sliding in the base 9, the receiving seat 11 includes a bottom plate and a double ear piece perpendicular to the bottom plate, the bottom plate is fixedly connected to the front end of the telescopic arm 10, the double ear piece is provided with a semicircular hole matched with the positioning sleeve 8, and a guide groove of a movable pressure block 14 is provided between the double ear pieces. The movable pressure block 14 is a wedge-shaped structure that self-locks with the fixed pressure block 7 and is connected to the piston rod of the first cylinder 12. The cylinder barrel part of the first cylinder 12 is installed on the telescopic arm 10. Driven by the first cylinder 12, the movable pressure block 14 slides along the guide groove until it is locked with the fixed pressure block 7.

[0029] The crossbeam assembly 3 includes a plurality of beam units 15 of different lengths, columns 16, adjustment bolts 17 and slide rail sliders 18. A plurality of partitions are arranged in the cavity of the beam unit 15. The partitions are connected to the inner wall of the beam unit 15 by a mortise and tenon structure to strengthen the rigidity of the beam unit 15. Adjacent beam units 15 are connected by bolts. The base 9 of the receiver 2 and the cylinder barrel of the second cylinder 13 are fixedly connected to the top of the beam unit 15. The bottom of the beam unit 15 is supported and connected by the columns 16. The columns 16 near the wing root of the wing box are connected to the beam unit 15 by adjusting bolts 17. During the installation of the first section of the beam unit 15, the position of the beam unit 15 is fine-tuned in the vertical direction by adjusting the bolts 17 to ensure that its top surface is horizontal, thereby providing an installation reference for the remaining sections of the beam unit 15. The remaining columns 16 are connected to the beam unit 15 through the slide rail slider 18. The slide rail part is installed on the top surface of the column 16, and the slider part is installed on the bottom surface of the beam unit 15. The movement direction of the slide rail slider 18 is consistent with the overall length direction of the crossbeam assembly 3, thereby providing the beam unit 15 with a degree of freedom of movement in this direction, so as to adapt to the thermal expansion and contraction deformation of the beam unit 15 along this direction caused by the temperature difference.

[0030] The specific operation process of using this equipment to quickly locate the leading edge of the wing box is as follows:

[0031] 1 At the leading edge assembly station, all the tooling flags 4 are connected to the web of the wing box front beam through the threaded connecting pins 5 and the shoulder nuts 6, so that the tooling flag assembly 1 and the wing box leading edge become one, and then hoisted to the top of the crossbeam assembly 3 of the wing box assembly station;

[0032] 2 The piston rods of the second cylinders 13 of all receivers 2 extend to push the telescopic arms 10 to drive the receiving seats 11, the movable pressing blocks 14 and the first cylinders 12 to move to the working positions;

[0033] 3 The leading edge of the wing box and the tooling flag assembly 1 fall together, and after being connected to the receiver 2, the piston rod of the first cylinder 12 extends, driving the movable pressing block 14 to move until it fits with the fixed pressing block 7 to lock the tooling flag 4;

[0034] 4 The remaining parts of the wing box are successively put on the rack for riveting and assembly to form a complete wing box;

[0035] 5 The piston rods of the first cylinders 12 of all receivers 2 are retracted, driving the movable pressing block 14 to move until it is separated from the fixed pressing block 7, thereby releasing the lock on the tooling flag 4;

[0036] 6 Lift the wing box. After the tooling flag assembly 1 is separated from the receiver 2, the piston rod of the second cylinder 13 is retracted, and the telescopic arm 10 is pulled to drive the receiving seat 11, the movable pressure block 14 and the first cylinder 12 to return to the non-working position;

[0037] 7 The wing box falls to the transport vehicle, is transported out of the rack by the transport vehicle, the tooling flag assembly 1 is removed, and the wing box is transferred to the next assembly station.

Claims

1. A rapid positioning device for the leading edge of an aircraft wing box based on horizontal assembly, characterized in that The utility model comprises a tooling flag assembly, a plurality of receivers and a crossbeam assembly. The crossbeam assembly is placed at the leading edge of the final assembly station, and its length direction is consistent with the wingspan direction. A plurality of identical receivers are fixedly connected to the crossbeam assembly. The utility flag assembly comprises a plurality of utility flags with the same structure and different sizes. One end of the plurality of utility flags is connected to the web of the front beam of the wing box at the corresponding position, and after becoming one, they are hoisted as a whole to the top of the crossbeam assembly of the final assembly station. After falling, the other ends of the plurality of utility flags are matched and connected with the receiver and locked to position the leading edge of the wing box on the final assembly station. The utility flag is a flag-shaped cavity structure, and the front end is a profile with the shape of the web surface of the front beam, which is connected to the front beam of the wing box by a threaded connecting pin and a shoulder nut. A positioning sleeve used in conjunction with the receiver is arranged at the rear end. A fixed pressure block installation groove is arranged between the positioning sleeves on the utility flag, and the fixed pressure block is embedded in the groove and is a wedge-shaped structure. The receiver comprises a receiving seat, a telescopic arm, a base, a movable pressure block, a first cylinder and a second cylinder. The base is a square hollow structure fixed to the crossbeam assembly The telescopic arm passes through the base and is connected to the base through a slide rail slider. The second cylinder drives the telescopic arm to slide in the base. The receiving seat includes a bottom plate and a double ear piece perpendicular to the bottom plate. The double ear piece is provided with a semicircular hole matched with a positioning sleeve. A movable pressure block guide groove is arranged between the double ear pieces. The movable pressure block is a wedge-shaped structure that self-locks with a fixed pressure block. The movable pressure block can slide along the guide groove. The front end of the telescopic arm is fixedly connected to the bottom plate of the receiving seat. The first cylinder is connected to the movable pressure block to drive the movable pressure block to move until it is locked with the fixed pressure block. The beam includes a plurality of beam units of different lengths. A plurality of partitions are arranged in the cavity of the beam unit. The partitions are connected to the inner walls of the beam units by a mortise and tenon structure. Adjacent beam units are connected by bolts. The receiver base and the cylinder barrel of the second cylinder are fixed to the top of the beam unit. The bottom of the beam unit is connected to the column support. The column near the wing root of the wing box is connected to the beam unit by an adjusting bolt. The remaining columns are connected to the beam unit through the slide rail slider. The movement direction of the slide rail slider is consistent with the overall length direction of the beam assembly.

2. The specific operation process of the aircraft wing box leading edge rapid positioning equipment based on horizontal assembly as claimed in claim 1 is as follows: 2-1 Connect all the tooling flags with the web of the wing box front beam at the leading edge assembly station through threaded connecting pins and shoulder nuts, so that the tooling flag assembly and the wing box leading edge become one, and then hoist them above the crossbeam assembly at the wing box assembly station; 2-2 The piston rods of the second cylinders of all receivers extend out, pushing the telescopic arms to drive the receiving seats, the movable pressure blocks and the first cylinders to move to the working positions; 2-3 The leading edge of the wing box and the tooling flag assembly fall together, and after being connected to the receiver, the piston rod of the first cylinder extends to drive the movable pressing block to move until it fits with the fixed pressing block to lock the tooling flag; 2-4 The remaining parts of the wing box are successively put on the rack for riveting and assembly to form a complete wing box; 2-5 The piston rods of the first cylinders of all receivers are retracted, driving the movable pressure block to move until it is separated from the fixed pressure block, thereby releasing the lock on the tooling flag; 2-6 Lift the wing box. After the tooling flag assembly is separated from the receiver, the piston rod of the second cylinder is retracted, and the telescopic arm is pulled to drive the receiving seat, the movable pressure block and the first cylinder to return to the non-working position; The 2-7 wing box falls onto the transport vehicle, is transported out of the rack by the transport vehicle, the tooling flag assembly is removed, and the wing box is transferred to the next assembly station.

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