A wing surface machining tooling
By combining the upper and lower skin forming molds, along with the positioner and lifting ring, the problems of poor processing quality, low efficiency, and high cost in traditional processes are solved, enabling efficient and low-cost production of wing control surfaces.
Patent Information
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- 浙江抟原复合材料有限公司
- Filing Date
- 2025-07-08
- Publication Date
- 2026-07-10
AI Technical Summary
Traditional wing control surface processing technology suffers from poor processing quality, low production efficiency, and high cost, especially in the process of skin bonding, where it is difficult to ensure shape consistency and increases production steps.
The system employs a combination of upper and lower skin forming molds, secured by pins and bolts. Combined with detachable positioners and lifting rings, it achieves precise positioning and bonding of the skin and frame, avoiding the use of traditional frames and skin clamps.
This enabled high-quality and efficient production of wing control surfaces, reduced production costs, minimized repetitive work and production time, and ensured the smoothness and consistency of the skin shape.
Smart Images
Figure CN224477080U_ABST
Abstract
Description
Technical Field
[0001] This utility model relates to the field of unmanned aerial vehicle (UAV) assembly technology, and in particular to a tooling for machining wing control surfaces. Background Technology
[0002] In the field of aerospace manufacturing, wing control surfaces, including flaps, flaperons, and ailerons, play a crucial role in the flight performance of an aircraft. Currently, in the manufacturing process of wing control surfaces, the traditional method mainly relies on skin clamps on assembly jigs to ensure the shape of the wing control surfaces during the bonding of the skin.
[0003] However, this traditional technique has many drawbacks:
[0004] 1. Poor processing quality of traditional processes: Due to the difficulty in precisely controlling the fit of the skin during actual operation, the skin corrugation is prone to defects during the bonding process. Substandard skin corrugation will damage the surface smoothness of the wing control surfaces.
[0005] 2. Traditional processes have extremely low production efficiency: multiple gluing operations are required to complete the entire production process. Multiple gluing operations not only increase production steps and extend the production cycle, but also easily introduce more errors during these multiple operations, further affecting product quality.
[0006] 3. High production costs of traditional processes: To ensure the shape of the skin during bonding, a special assembly jig is required, and skin positioners and positioning plates are installed on the jig. The design, manufacture, and maintenance of these tooling devices require a large investment of manpower, material resources, and financial resources, which greatly increases production costs. Utility Model Content
[0007] To address the aforementioned issues, this invention provides a wing control surface machining fixture that can meet the production requirements of high quality, high efficiency, and low cost.
[0008] Therefore, the technical solution of this utility model is: a wing control surface processing fixture, including an upper skin forming mold and a lower skin forming mold, wherein the upper skin forming mold has an upper skin forming groove in the middle, and the lower skin forming mold has a lower skin forming groove in the middle, and the two are assembled to form a forming cavity; the upper skin forming mold is provided with a detachable upper skin lug positioner and a skeleton positioner, and the lower skin forming mold is provided with a detachable lower skin lug positioner.
[0009] Based on the above scheme and as a preferred embodiment of the above scheme: the upper skin forming mold and the lower skin forming mold are respectively provided with pin holes and pins, which are positioned by pins and fixed by fastening bolts.
[0010] Based on the above scheme and as a preferred embodiment of the above scheme: the skeleton positioner includes a rudder suspension joint positioner and a rudder end rib positioner. The rudder suspension joint positioner is located on the middle side of the upper skin forming groove, and the rudder end rib positioner is located on both sides of the upper skin forming groove.
[0011] Based on the above scheme and as a preferred embodiment of the above scheme: both the upper skin forming mold and the lower skin forming mold are provided with multiple lifting rings on both sides.
[0012] Based on the above scheme and as a preferred embodiment of the above scheme: the upper skin ear plate positioner is located at both ends of the upper skin forming groove, and the lower skin ear plate positioner is located at both ends of the lower skin forming groove.
[0013] Compared with the prior art, the beneficial effects of this utility model are:
[0014] 1. The assembly of wing control surfaces (flaps, flaps-ailerons, ailerons) is completed using upper and lower skin forming molds, eliminating the need for assembly jigs and skin clamps, significantly reducing production costs. The use of forming molds for bonding the upper and lower skins ensures a consistent product shape, preventing issues such as excessive skin waviness or substandard skin shape. The forming molds also position the upper and lower skins and the frame (including beams, ribs, and foam), eliminating the need for repeated disassembly and grinding, reducing repetitive work for assembly workers and shortening production time.
[0015] 2. By setting a locator on the skin forming mold to position the skin and the frame (including beams, ribs, and foam), the skin is glued together by mold closing. This method can be applied to glued parts such as flaps, flaperons, ailerons, rudders, and elevators that use upper and lower skin glued together. Attached Figure Description
[0016] Figure 1 This is a schematic diagram of the structure of this utility model;
[0017] Figure 2 This is a cross-sectional view of the structure of this utility model;
[0018] Figure 3 This is a schematic diagram of the split structure of this utility model;
[0019] Figure 4 This is a schematic diagram of the upper skin forming mold of this utility model;
[0020] Figure 5 for Figure 4 A magnified view of a portion of the image;
[0021] Figure 6 This is a schematic diagram of the lower skin forming mold of this utility model;
[0022] Figure 7 for Figure 6 A magnified view of a portion of the image.
[0023] The markings in the diagram are: upper skin forming mold 1, pin hole 11, upper skin forming groove 12, lower skin forming mold 2, pin 21, lower skin forming groove 22, fastening bolt 3, lifting ring 4, forming cavity 5, upper skin lug locator 6, rudder end rib locator 7, rudder suspension joint locator 8, and lower skin lug locator 9. Detailed Implementation
[0024] In the description of this utility model, it should be noted that the directional terms such as "center", "horizontal (X)", "longitudinal (Y)", "vertical (Z)", "length", "width", "thickness", "up", "down", "front", "back", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", "clockwise", and "counterclockwise" indicate the orientation and positional relationship based on the orientation or positional relationship shown in the accompanying drawings. They are only for the convenience of describing this utility model and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation. They should not be construed as limiting the specific protection scope of this utility model.
[0025] Furthermore, the terms "first" and "second" are used for descriptive purposes only and should not be construed as indicating or implying relative importance or implicitly specifying the number of technical features. Thus, the use of "first" and "second" to define a feature may explicitly or implicitly include one or more of that feature. In the description of this utility model, "several" or "a number" means two or more, unless otherwise explicitly specified.
[0026] See the attached diagram. The wing control surface machining fixture described in this embodiment includes an upper skin forming mold 1 and a lower skin forming mold 2. The upper skin forming mold 1 has a pin hole 11, and the lower skin forming mold 2 has a pin 21. When the two molds are closed, the pin 21 can be inserted into the pin hole 11, thereby preventing misalignment between the upper skin forming mold 1 and the lower skin forming mold 2. Finally, they are fixed by fastening bolts 3. Both the upper skin forming mold 1 and the lower skin forming mold 2 have multiple lifting rings 4 on both sides for easy lifting.
[0027] The upper skin forming mold 1 has an upper skin forming groove 12 in the middle, and the lower skin forming mold 2 has a lower skin forming groove 22 in the middle. After the two are assembled, the forming cavity 5 of the entire wing control surface can be obtained. The forming cavity 5 can be used directly to limit the shape of the skin, without the need for a frame and skin clamping plate, which can save costs.
[0028] Upper skin forming groove 12 has upper skin lug locators 6 at both ends, and rudder end rib locators 7 on both sides at both ends of upper skin forming groove 12. A rudder suspension joint locator 8 is located on the middle side of upper skin forming groove 12. These locators are used to position the upper skin and the frame (including beams, ribs, and foam). Simultaneously, lower skin lug locators 9 are provided at both ends of lower skin forming groove 22 to position the lower skin. These locators are all detachable structures and can be removed after positioning to avoid affecting subsequent mold closing.
[0029] When using:
[0030] An upper skin lug locator 6, a rudder suspension joint locator 8, and a rudder end rib locator 7 are provided on the upper skin forming mold 1 to locate the upper skin and the frame (including beams, ribs, and foam).
[0031] A lower skin ear plate positioner 9 is provided on the lower skin forming mold 2 for positioning the lower skin;
[0032] After the upper skin and frame (including beams, ribs, and foam) are glued together on the upper skin forming mold 1, remove the upper skin lug locator 6, the rudder suspension joint locator 8, and the rudder end rib locator 7.
[0033] After the lower skin is positioned in the lower skin forming mold 2, the lower skin ear positioner 9 is removed.
[0034] The upper and lower skin forming molds are hoisted using the lifting rings 4 of the lower skin forming mold 2 and the upper skin forming mold 1, respectively. The upper skin forming mold 1 and the lower skin forming mold 2 are then closed using the pin holes 11 and pins 21. The upper skin forming mold 1 and the lower skin forming mold 2 are then fixed together with the fastening bolts 3 to ensure a close fit, thereby achieving the bonding of the upper skin adhesive component with the lower skin and completing the assembly of the wing control surface.
[0035] The above description is merely a preferred embodiment of this utility model. The protection scope of this utility model is not limited to the above embodiments. All technical solutions falling within the scope of this utility model's concept are protected. It should be noted that for those skilled in the art, any improvements and modifications made without departing from the principle of this utility model should also be considered within the protection scope of this utility model.
Claims
1. A tooling for machining wing control surfaces, characterized in that: It includes an upper skin forming mold and a lower skin forming mold. The upper skin forming mold has an upper skin forming groove in the middle, and the lower skin forming mold has a lower skin forming groove in the middle. The two are assembled to form a forming cavity. The upper skin forming mold is equipped with a detachable upper skin ear plate positioner and a skeleton positioner. The lower skin forming mold is equipped with a detachable lower skin ear plate positioner.
2. The wing control surface machining fixture as described in claim 1, characterized in that: The upper skin forming mold and the lower skin forming mold are respectively provided with pin holes and pins, which are positioned by the pins and fixed by fastening bolts.
3. The wing control surface machining fixture as described in claim 1, characterized in that: The skeleton positioner includes a rudder suspension joint positioner and a rudder end rib positioner. The rudder suspension joint positioner is located on the middle side of the upper skin forming groove, and the rudder end rib positioner is located on both sides of the upper skin forming groove.
4. The wing control surface machining fixture as described in claim 1, characterized in that: Both the upper and lower skin forming molds are equipped with multiple lifting rings on both sides.
5. The wing control surface machining fixture as described in claim 1, characterized in that: The upper skin ear plate positioner is located at both ends of the upper skin forming groove, and the lower skin ear plate positioner is located at both ends of the lower skin forming groove.