Rapid positioning method for skin connecting holes

Abstract

The invention discloses a rapid positioning method for a skin connecting hole, and relates to the technical field of aircraft skin hole guiding, and the rapid positioning method comprises the following steps: S1, installing a detachable magnetic bead A in a connecting hole in a beam rib; s2, a skin to be drilled is placed on the beam rib, a magnetic bead B is placed on the skin, and the magnetic bead A and the magnetic bead B attract each other; s3, the magnetic beads B are sleeved with drill bushings, and the drill bushings are detachably fixed to the skin; and S4, the magnetic bead B is taken out of the drill bushing, and the drill bushing is used as the drilling reference of the skin. According to the invention, not only can the connecting hole in the skin be quickly positioned, but also the subsequent drilling precision is higher.

Description

TECHNICAL FIELD

[0001] The present application relates to the technical field of aircraft skin hole positioning, in particular to a skin connecting hole rapid positioning method. BACKGROUND

[0002] The connecting holes between the aircraft skin and the beam and rib are generally perpendicular to the skin surface, and the hole positions of the connecting holes are different, such as being located on a horizontal plane, a vertical plane, and an inclined curved surface. When a hole is to be drilled on the skin, it needs to be ensured that it is concentric with the hole on the beam and rib, which is difficult to operate.

[0003] At present, the connecting hole on the skin is usually processed by the following methods: (1) jig positioning and hole drilling. This method needs to customize a special drilling jig to ensure the drilling accuracy. However, when the number of holes is large, a large number of drilling jigs are required, which not only leads to high equipment cost, but also leads to long drilling cycle. At the same time, the internal structure of the aircraft is complex, the space is limited, and there are many restrictions, so it is difficult to design a suitable positioning jig in most cases.

[0004] (2) manual line marking and hole drilling. This method cannot guarantee the assembly accuracy, and often leads to deviation of the hole on the skin, resulting in scrap of the skin.

[0005] (3) digital positioning and hole drilling. This method needs to measure the accurate position of the hole on the beam and rib by using a laser tracker before drilling, and the hole position on the skin is determined by technical personnel. Then, the center position of the hole is marked by the laser tracker, and the hole is drilled. This method needs to occupy the laser tracker for a long time, and the drilling accuracy is still not high, and the drilling cycle is long.

[0006] (4) digital processing equipment and hole drilling. This method needs to use numerical control equipment to drill holes. Although the accuracy is high, the actual deviation of each aircraft skin leads to large correction workload of the skin, and the preparation cycle of auxiliary tools, templates, and software is long, resulting in high drilling cost.

[0007] Therefore, in order to overcome the defects of the above-mentioned hole drilling methods, there is an urgent need for a method for rapidly positioning the connecting hole on the skin. SUMMARY

[0008] The purpose of the present application is to provide a skin connecting hole rapid positioning method, which can not only rapidly position the connecting hole on the skin, but also improve the subsequent drilling accuracy.

[0009] To achieve the purpose of the present application, the technical solution adopted is as follows: a skin connecting hole rapid positioning method, comprising the following steps: S1, installing a detachable magnetic bead A in the connecting hole on the beam and rib; S2, place the skin to be drilled on the beam rib, and place the magnetic beads B on the skin, so that the magnetic beads A and the magnetic beads B attract each other; S3, a drill sleeve is sleeved outside the magnetic beads B, and the drill sleeve is detachably fixed on the skin; S4, the magnetic beads B are taken out of the drill sleeve, and the drill sleeve is used as the drilling reference of the skin.

[0010] Further, before the magnetic beads A are fixed in the connecting hole on the beam rib, the magnetic beads A and the magnetic beads B are attracted to each other, then the magnetic beads B are placed in the connecting hole on the beam rib, and the central axis of the magnetic beads A, the central axis of the magnetic beads B and the central axis of the connecting hole on the beam rib are on a straight line.

[0011] Further, in step S1, the highest point of the magnetic beads A is not higher than the upper surface of the beam rib.

[0012] Further, in step S1, the magnetic beads A are placed in the connecting hole on the beam rib, and then quick-drying glue is filled into the connecting hole on the beam rib.

[0013] Further, in step S3, the inner diameter of the drill sleeve is matched with the diameter of the connecting hole on the beam rib.

[0014] Further, in step S3, the drill sleeve is fixed on the skin through the quick-drying glue.

[0015] Further, in step S4, the magnetic beads B are taken out of the drill sleeve by using a magnetic element to attract the magnetic beads B above the drill sleeve, so that the magnetic beads B are moved out of the drill sleeve through the attraction of the magnetic element to the magnetic beads B.

[0016] Further, the diameters of the magnetic beads B and the magnetic beads A are equal.

[0017] The beneficial effects of the present application are: The positioning method provided by the present application can be completed by using the magnetic beads A, the magnetic beads B, the magnetic element, the drill sleeve and the quick-drying glue, and the magnetic beads A, the magnetic beads B, the magnetic element and the drill sleeve can be used again subsequently. Meanwhile, in the whole positioning process, the magnetic beads A and the magnetic beads B are in point-to-point contact when they attract each other, and the two points of contact are located on the central axes of the magnetic beads, so that rapid positioning on the skin is achieved. The whole positioning process is simple to operate, and does not require the assistance of workers for marking. In addition, the drill sleeve can guide the drill bit during the subsequent drilling process, so as to avoid the inclination of the drill bit during the drilling process, and to improve the drilling precision. BRIEF DESCRIPTION OF DRAWINGS

[0018] The accompanying drawings illustrate exemplary embodiments of the present application and together with the general description of the application given above and the detailed description of the application given below, serve to explain the principles of the present application. These drawings are included herewith and constitute a part of this specification.

[0019] Figure 1 This is a schematic diagram of magnetic bead A being placed into the connecting hole on the beam rib; Figure 2 This is a schematic diagram of magnetic bead A being fixed in the connection hole on the beam rib; Figure 3 This is a schematic diagram showing the mutual attraction between magnetic bead A and magnetic bead B after the skin is installed; Figure 4 This is a schematic diagram showing the drill bit being fitted around the magnetic bead B and fixed to the skin. Figure 5 This is a schematic diagram after magnetic bead B is removed from the drill sleeve.

[0020] The attached diagram shows the markings and corresponding component names: 1. Rib, 2. Skin, 3. Magnetic Bead A, 4. Magnetic Bead B, 5. Quick-drying Adhesive, 6. Magnetic Components, 7. Drill Bushing. Detailed Implementation

[0021] The present invention will now be described in further detail with reference to the accompanying drawings and embodiments. It should be understood that the specific embodiments described herein are for illustrative purposes only and are not intended to limit the scope of the invention. Furthermore, it should be noted that, for ease of description, only the parts relevant to the present invention are shown in the accompanying drawings.

[0022] It should be noted that, unless otherwise specified, the embodiments and features described in this invention can be combined with each other. The invention will now be described in detail with reference to the accompanying drawings and embodiments.

[0023] like Figure 1 As shown, the present invention provides a method for rapid positioning of skin connection holes, comprising the following steps: S1. Take magnetic beads A3 and B4 with diameters matching the inner diameter of the connecting holes on beam rib 1, ensuring that the diameters of magnetic beads A3 and B4 are equal and that they attract each other; when magnetic beads A3 and B4 attract each other, such as... Figure 1 As shown, place magnetic bead A3 into the connecting hole on beam rib 1, making the highest point of magnetic bead A3 flush with the surface of beam rib 1. When the central axis of magnetic bead A3, the central axis of magnetic bead B, and the central axis of the connecting hole on beam rib 1 are aligned, inject quick-drying adhesive 5 into the connecting hole on beam rib 1. Figure 2 As shown; after the quick-drying adhesive 5 solidifies, the quick-drying adhesive 5 fixes the magnetic bead A3 in the connecting hole on the beam rib 1, and ensures that the magnetic bead A3 and the magnetic bead B4 attract each other. After the magnetic bead A3 is fixed in the connecting hole on the beam rib 1, the central axis of the magnetic bead A3, the central axis of the magnetic bead B4, and the central axis of the connecting hole on the beam rib 1 are on a straight line.

[0024] S2, after the magnetic beads A3 is fixed in the connecting hole on the beam rib 1, the magnetic beads B4 is taken off from the magnetic beads A3, and the skin 2 to be drilled is placed on the beam rib 1; then, the magnetic beads A3 is placed on the skin 2, and the magnetic beads A3 is automatically close to the magnetic beads B4 by the attraction of the magnetic beads B4, and the magnetic beads A3 and the magnetic beads B4 attract each other, at this time, the contact point of the magnetic beads A3 and the skin 2 is the center point of the hole drilled on the skin 2, as shown in the figure. Figure 3

[0025] S3, a drill sleeve 7 with an inner diameter equal to the diameter of the connecting hole on the beam rib 1 is selected, the drill sleeve 7 is made of non-magnetic material, so that the drill sleeve 7 will not be attracted by the magnetic beads A3 and the magnetic beads B4; the drill sleeve 7 is sleeved outside the magnetic beads B4, and the drill sleeve 7 falls on the skin 2 by gravity; when the position of the drill sleeve 7 on the skin 2 is unchanged, the fast-drying glue 5 is injected at the contact between the lower edge of the drill sleeve 7 and the skin 2, and the drill sleeve 7 and the skin 2 are fixed together after the fast-drying glue 5 is solidified, so that the position of the drill sleeve 7 on the skin 2 will not change, as shown in the figure. Figure 4

[0026] S4, another magnetic part 6 is taken, the attraction of the magnetic part 6 is greater than that of the magnetic beads A3, and the magnetic part 6 can be spherical or any other shape; then, the magnetic part 6 is taken above the magnetic beads B4 or placed on the drill sleeve 7, the magnetic part 6 attracts the magnetic beads B4, so that the magnetic beads B4 are adsorbed on the magnetic part 6; then, the magnetic part 6 with the magnetic beads B4 adsorbed is moved away from above the drill sleeve 7, so that only the drill sleeve 7 remains on the skin 2, at this time, the corresponding part of the skin 2 to the inner hole of the drill sleeve 7 is the drilling part on the skin 2, and the workers take the drill sleeve 7 as the drilling reference of the skin 2, as shown in the figure. Figure 5

[0027] In the present application, in order to avoid damage to the surface of the skin 2 in the process of removing the drill sleeve 7 or cleaning the fast-drying glue 5 attached to the skin 2 after the drill sleeve 7 is fixed on the skin 2 by the fast-drying glue 5, a layer of transparent tape is attached to the skin 2 in the approximate range corresponding to the magnetic beads A3 before the magnetic beads B4 is placed on the skin 2, so that the drill sleeve 7 and the magnetic beads B4 are in contact with the transparent tape when the magnetic beads B4 is placed on the skin 2 and attracted by the magnetic beads A3, and when the drill sleeve 7 falls on the skin 2 by gravity after the drill sleeve 7 is sleeved outside the magnetic beads B4, so that the fast-drying glue 5 injected at the contact between the lower edge of the drill sleeve 7 and the skin 2 is directly attached to the transparent tape instead of the skin 2, and the skin 2 is taken off after the drilling is completed, and then the drill sleeve 7 is separated from the transparent tape, so that the skin 2 does not need to be cleaned, thereby avoiding damage to the skin 2 caused by cleaning the fast-drying glue 5. ​​​

[0028] The positioning method provided by the application can be completed by using the magnetic beads A3, the magnetic beads B4, the magnetic element 6, the drill sleeve 7 and the quick-drying adhesive 5, and the magnetic beads A3, the magnetic beads B4 and the magnetic element 6 can be used again subsequently. Meanwhile, the magnetic beads A3 and the magnetic beads B4 are in point-to-point contact when they are attracted to each other, and the two points in contact are located on the central axis of the magnetic beads, so that rapid positioning on the skin 2 is achieved. The whole positioning process is simple to operate, does not need to be marked with the assistance of workers, and the drill sleeve 7 can guide the drill bit during the subsequent drilling process, so as to avoid the inclination of the drill bit during the drilling process, and make the subsequent drilling precision higher.

[0029] Those skilled in the art should understand that the above embodiments are only for clearly illustrating the application, and are not intended to limit the scope of the application. Based on the above disclosure, other changes or modifications can also be made by those skilled in the art, and these changes or modifications are still within the scope of the application.

Claims

1. A method for rapid positioning of skin connection holes, characterized in that, Includes the following steps: S1. Install a removable magnetic bead A (3) in the connection hole on the beam rib (1); S2. Place the skin (2) to be drilled on the beam rib (1) and place the magnetic bead B (4) on the skin (2) so that the magnetic bead A (3) and the magnetic bead B (4) attract each other. S3. Place a drill sleeve (7) over the magnetic bead B (4) and fix the drill sleeve (7) detachably on the skin (2); S4. Remove the magnetic bead B (4) from the drill sleeve (7) and use the drill sleeve (7) as the drilling reference for the skin (2).

2. The method for rapid positioning of skin connection holes according to claim 1, characterized in that, Before the magnetic bead A (3) is fixed in the connecting hole on the beam rib (1), the magnetic bead A (3) attracts the magnetic bead B, and then the magnetic bead B (4) is placed in the connecting hole on the beam rib (1), so that the central axis of the magnetic bead A (3), the central axis of the magnetic bead B, and the central axis of the connecting hole on the beam rib (1) are on a straight line.

3. The method for rapid positioning of skin connection holes according to claim 1, characterized in that, In step S1, the highest point of the magnetic bead A (3) is not higher than the upper surface of the beam rib (1).

4. The method for rapid positioning of skin connection holes according to claim 1, characterized in that, In step S1, the magnetic bead A (3) is installed as follows: after the magnetic bead A (3) is placed in the connecting hole on the beam rib (1), quick-drying adhesive (5) is filled into the connecting hole on the beam rib (1).

5. The method for rapid positioning of skin connecting holes according to claim 1, 2, 3, or 4, characterized in that, In step S3, the inner diameter of the drill sleeve (7) is matched with the diameter of the connecting hole on the beam rib (1).

6. The method for rapid positioning of skin connection holes according to claim 1, 2, 3, or 4, characterized in that, In step S3, the drill sleeve (7) is fixed to the skin (2) with quick-drying adhesive (5).

7. The method for rapid positioning of skin connection holes according to claim 1, 2, 3, or 4, characterized in that, In step S4, the magnetic bead B (4) is removed from the drill sleeve (7) by using a magnetic element (6) above the drill sleeve (7) to attract the magnetic bead B (4), and the magnetic bead B (4) is moved out of the drill sleeve (7) by the attraction of the magnetic element (6).

8. The method for rapid positioning of skin connection holes according to claim 1, 2, 3, or 4, characterized in that, The diameter of the magnetic bead B(4) is the same as that of the magnetic bead A(3).

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