Flexible tool for machining left wallboard of airplane

Abstract

The utility model provides a flexible tool for processing a left wallboard of an airplane, which comprises a base plate, the upper end of the base plate is fixedly connected with a plurality of supporting columns and a floating supporting piece, the floating supporting piece comprises a base, the upper end of the base is fixedly connected with a supporting block, a plurality of spring needles are tightly distributed in a groove at the upper end of the supporting block, a clamping plate is arranged in the groove, and the clamping plate is fixedly connected with the base. And one side of the supporting block is in threaded connection with a bolt, and one end of the bolt abuts against the clamping plate. The spring needle and other structures are arranged, so that the supporting device is suitable for supporting the large-size multi-curved-surface aircraft left wall plate.

Description

Technical Field

[0001] This invention relates to the field of flexible tooling technology, and in particular to a flexible tooling for processing the left side panel of an aircraft. Background Art

[0002] The workpiece is a thin-walled structural component, approximately 2800mm long, 480mm wide, and 260mm high. It has a complex structure with a closed-angle region of 15°. 80% of the workpiece's web area is an irregular curved surface, with the thinnest part being only 5mm. The structural spacing in the drawings is around 1500mm in many places, and the feature position accuracy requirement is within 0.1mm. The existing tooling cannot meet the processing requirements, and the tooling needs to be redesigned.

[0003] Defects and shortcomings of existing technology:

[0004] 1. If the contact area between the tooling and the workpiece is too large, slight deformation of the workpiece may cause the workpiece to become unpositionable.

[0005] 2. If the tooling support surface and the fixed surface are not on the same plane, and the support surface is an irregular curved surface, there will be a gap in the support surface after locking the workpiece, which will cause the tool to vibrate. If the support surface is too high, it will cause the workpiece to deform.

[0006] 4. The tooling is too large, making it inconvenient to transport and store;

[0007] 5. Due to its integrated design, partial replacement is not possible if some areas are damaged. Summary of the Invention

[0008] To address the aforementioned problems, this invention discloses a flexible tooling for processing the left side panel of an aircraft, comprising a base plate with several support columns and floating support components fixedly connected to its upper end. Based on the structure and support requirements of the aircraft's left side panel, an appropriate number of support columns and floating support components are selected and installed on the base plate.

[0009] The floating support includes a base, with a support block fixedly connected to the upper end of the base. Several spring pins are densely distributed in a groove at the upper end of the support block. A clamping plate is installed in the groove, and a bolt is threaded onto one side of the support block, with one end of the bolt abutting against the clamping plate. The left side panel of the aircraft is placed on top of the support column and the floating support. After adjusting the attitude of the left side panel using measuring tools, the bolt is rotated. The clamping plate engages with the interior of the groove, clamping and fixing the spring pins, preventing them from rising or falling, thus providing stable support for the left side panel of the aircraft. Subsequent adjustments to the left side panel support for similar aircraft types are unnecessary.

[0010] Preferably, the spring pin includes a support rod, inside which a spring is disposed. A rod extends from the lower end of the support rod, and the spring is located at the upper end of the rod. The structure of this spring pin is similar to that of a spring pin electrical connector in a circuit connection, but the difference lies in the spring being disposed within the support rod. This ensures the clamping line of the clamping plate is secured, and the sidewall of the support rod can contact the clamp. Through the friction between them, the extension and retraction of the spring pin is maintained, thus restricting the upper support shape of the floating support.

[0011] Preferably, the lower sidewall of the support block is provided with a protruding edge, and the protruding edge has a through-hole. The mounting hole is an elongated countersunk hole, which is connected to the base by bolts or the like.

[0012] The beneficial effects of this invention are as follows:

[0013] 1. Small size and light weight make it convenient for transportation and storage.

[0014] 2. The tooling is assembled from several parts, which has a lower manufacturing cost than the overall tooling and is convenient for later replacement and maintenance.

[0015] 3. The tooling has a small contact area with the workpiece, so even if the workpiece is deformed, it will not affect the installation.

[0016] 4. The tooling support surface adopts floating support components, which can automatically adjust the height according to the actual position of the workpiece. Attached Figure Description

[0017] Figure 1 This is a three-dimensional schematic diagram of the present invention;

[0018] Figure 2 This is a three-dimensional schematic diagram of the floating support component of the present invention.

[0019] List of reference numerals in the attached diagram:

[0020] 1. Substrate; 2. Support column; 3. Floating support component;

[0021] 31. Base; 32. Support block; 33. Spring pin; 34. Mounting hole; 35. Bolt. Detailed Implementation

[0022] The present invention will be further illustrated below with reference to the accompanying drawings and specific embodiments. It should be understood that the following specific embodiments are for illustrative purposes only and are not intended to limit the scope of the invention. It should be noted that the terms "front," "rear," "left," "right," "up," and "down" used in the following description refer to directions in the accompanying drawings, and the terms "inner" and "outer" refer to directions toward or away from the geometric center of a specific component, respectively.

[0023] like Figures 1 to 2As shown, a flexible tooling for processing the left side panel of an aircraft includes a base plate 1, which is a rectangular plate with several through holes, such as threaded holes and countersunk holes. Several support columns 2 and floating support members 3 are fixedly connected to the upper end of the base plate 1. The number and installation position of the support columns 2 and floating support members 3 are determined according to the support requirements of the left side panel of the aircraft. The modular structure of the support columns 2 and floating support members 3 facilitates disassembly and replacement if one of them is damaged.

[0024] The floating support 3 includes a base 31, which is a rectangular block. Different heights of base 31 can be replaced as needed. A support block 32 is fixedly connected to the upper end of the base 31. Several spring pins 33 are closely distributed in the groove at the upper end of the support block 32. Since the left side panel of the aircraft is a thin part with a multi-curved structure, point support is provided by the spring pins 33. Multiple spring pins 33 also provide support for the curved surfaces in the same area. A clamping plate is installed in the groove, sliding horizontally within it. One side of the support block 32 is threadedly connected. There is a bolt 35, one end of which abuts against the clamping plate. When supporting the left side panel of the aircraft, it is placed on the upper end of the support column 2 and the floating support 3. During the process, the correct posture of the left side panel of the aircraft is ensured by pressing and other clamps with the help of measuring tools. Then, the bolt 35 is rotated. At this time, the bolt 35 moves against the clamping plate, and the clamping plate clamps and fixes the spring pin 33, so that the spring pin 33 cannot move up or down. Finally, the left side panel of the aircraft is pressed down from above to achieve the final fixation. In subsequent support of the left side panel of the same type of aircraft, there is no need to adjust the shape of the upper end of the floating support 3.

[0025] The spring pin 33 includes a support rod with a spring inside. A rod extends from the lower end of the support rod, and the spring is located at the upper end of the rod. Under the action of the spring, the support rod maintains an upward-extending position. The rod extends from inside the support rod, ensuring that the side walls of adjacent support rods can contact each other under the clamping of the clamping plate. The friction between them maintains the posture of the spring pin 33.

[0026] The lower side wall of the support block 32 is provided with a protruding edge, and the protruding edge has a through-hole 34. The support block 32 is fixedly connected to the base 31 through the through-hole 34, which has the advantage of facilitating the replacement of the whole unit.

[0027] The technical means disclosed in this invention are not limited to those disclosed in the above embodiments, but also include technical solutions composed of any combination of the above technical features.

Claims

1. A flexible tooling for processing the left side panel of an aircraft, characterized in that, Includes a substrate (1), and the upper end of the substrate (1) is fixedly connected with a plurality of support columns (2) and floating support members (3). The floating support (3) includes a base (31), and a support block (32) is fixedly connected to the upper end of the base (31). Several spring pins (33) are closely distributed in the groove at the upper end of the support block (32). A clamping plate is provided in the groove, and a bolt (35) is threadedly connected to one side of the support block (32). One end of the bolt (35) abuts against the clamping plate.

2. The flexible tooling for processing the left side panel of an aircraft according to claim 1, characterized in that: The spring pin (33) includes a support rod, inside which a spring is provided, and a rod extends from the lower end of the support rod, with the spring located at the upper end of the rod.

3. The flexible tooling for processing the left side panel of an aircraft according to claim 1, characterized in that: The lower side wall of the support block (32) is provided with a protruding edge, and the protruding edge is provided with a mounting hole (34).

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