Drilling jig clamp for preparing closed fuselage frame and wing beam connecting hole

Abstract

The utility model relates to the technical field of aviation composite material aircraft riveting assembly manufacturing, and discloses a drill jig clamp for preparing a closed fuselage frame and wing beam connecting hole. The guide piece is fixed on the base; the fixing piece is mounted on the guide piece; and the positioning pin is arranged on the fixing piece in a penetrating manner. By arranging the guide piece, the fixing piece and the positioning pin, precise connection of the closed fuselage frame and the wing beam connecting hole can be achieved.

Description

Technical Field

[0001] The utility model relates to the technical field of aviation composite aircraft riveting and assembly manufacturing, and more specifically, particularly relates to a drill jig for preparing connection holes between a closed fuselage frame and a wing beam. Background Technique

[0002] With the rapid development of the aviation industry, the design structure of aircraft is becoming more and more complex, and the manufacturing precision requirements are getting higher and higher, especially in the processing of connection holes between a closed fuselage and a wing. Traditional connection holes between the fuselage and the wing are mostly placed in open positions on both sides of the fuselage. The processing methods usually include positioning drill bush and reaming holes with an assembly jig or processing with a semi-automatic radial drill. This method requires an open space. The connection holes of the fuselage and wing of this aircraft are designed and distributed inside the fuselage structure, and the connection holes are located in a closed space, which is difficult to operate, requires high precision, and is prone to dimensional tolerance during the processing. During the assembly process of the aircraft, the precise connection between the closed fuselage frame and the wing beam is crucial, which is related to the stability and safety of the overall structure.

[0003] Traditional connection methods usually require manual positioning and drilling, which are not only inefficient, but also difficult to guarantee the precision, and are prone to loose connection or position deviation, affecting the performance and safety of the aircraft. Therefore, there is an urgent need for a drill jig that can improve the drilling precision and efficiency. Content of the Utility Model

[0004] The purpose of the utility model is to provide a drill jig for preparing connection holes between a closed fuselage frame and a wing beam to solve the problems existing in the prior art. Precise connection of the connection holes between the closed fuselage frame and the wing beam can be achieved by setting a guide member, a fixing member and a positioning pin.

[0005] To achieve the above purpose, the utility model provides the following solution: The utility model provides a drill jig for preparing connection holes between a closed fuselage frame and a wing beam, including: a base; a guide member, the guide member is fixed on the base, wherein, the guide member includes a guide locator support and a guide locator, the guide locator support is fixedly connected to the base, and the guide locator is fixedly connected to the guide locator support; a fixing member, the fixing member is installed on the guide member, wherein, the fixing member includes a bushing and a drill bush, the bushing is disposed through the guide locator, and the drill bush is sleeved in the bushing; a positioning pin, the positioning pin is disposed through the fixing member.

[0006] Further, a positioning pin is disposed through the drill bush.

[0007] Further, four guide locator supports and four guide locators are provided, and the guide locator supports are fixed at the four corner positions of the base.

[0008] Furthermore, the guiding locator support is fixed to the base by bolts, and the guiding locator is fixed to the guiding locator support by bolts.

[0009] The present utility model discloses the following technical effects:

[0010] In this device, the base can support the guiding member, the fixing member and the positioning pin as a whole, so as to form an integral drilling jig, improve the drilling accuracy and repeatability, and the positioning pin mechanism can effectively fix the fuselage frame and the drilling jig to make them an integral body, ensuring the stability of the drilling process. BRIEF DESCRIPTION OF THE DRAWINGS

[0011] In order to more clearly illustrate the technical solutions in the embodiments of the present utility model or the prior art, the following will briefly introduce the drawings required for use in the embodiments. Obviously, the drawings in the following description are only some embodiments of the present utility model. For those of ordinary skill in the art, other drawings can be obtained based on these drawings without creative efforts.

[0012] Figure 1 It is a schematic diagram of the overall structure of the present utility model;

[0013] Figure 2 It is a top view of the whole of the present utility model;

[0014] Figure 3 It is a schematic diagram of the structure of the guiding locator support in the present utility model;

[0015] Figure 4 It is a schematic diagram of the structure of the guiding locator in the present utility model;

[0016] Figure 5 It is a schematic diagram of the structure of the bushing in the present utility model;

[0017] Figure 6 It is a schematic diagram of the structure of the drill bushing in the present utility model;

[0018] Figure 7 It is a schematic diagram of the structure of the positioning pin in the present utility model;

[0019] Figure 8 It is a schematic diagram of the installation structure of the guiding locator support and the guiding locator in the present utility model;

[0020] Figure 9 It is a schematic diagram of the installation structure of the positioning pin and the guiding locator in the present utility model;

[0021] Figure 10 It is a schematic diagram of the structural connection between the fuselage frame and the present utility model;

[0022] Figure 11 Schematic diagram of the connection hole between the fuselage frame and the wing beam

[0023] Among them, 1. Base; 2. Guide locator support; 3. Guide locator; 4. Bushing; 5. Drill bushing; 6. Locating pin; 7. Bolt Specific implementation manner

[0024] Next, the technical solutions in the embodiments of the present invention will be clearly and completely described in conjunction with the accompanying drawings in the embodiments of the present invention. Obviously, the described embodiments are only a part of the embodiments of the present invention, rather than all the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by those of ordinary skill in the art without creative efforts shall fall within the protection scope of the present invention

[0025] In order to make the above objects, features and advantages of the present invention more obvious and understandable, the present invention will be further described in detail below with reference to the accompanying drawings and specific implementation manners

[0026] As Figures 1-9 shown, the present invention provides a drilling jig for preparing the connection hole between the closed fuselage frame and the wing beam, including: a base 1; a guiding member, the guiding member is fixed on the base 1, wherein the guiding member includes a guide locator support 2 and a guide locator 3, the guide locator support 2 is fixedly connected to the base 1, and the guide locator 3 is fixedly connected to the guide locator support 2; a fixing member, the fixing member is installed on the guiding member, wherein the fixing member includes a bushing 4 and a drill bushing 5, the bushing 4 is disposed through the guide locator 3, and the drill bushing 5 is sleeved on the bushing 4; a locating pin 6, the locating pin 6 is disposed through the fixing member

[0027] The base 1 is integrally processed from steel to form a whole, with large rigidity and not easy to deform, and can support the guiding member, the fixing member and the locating pin 6 to form an integrated drilling jig. The upper surface of the base 1 is provided with a structure including several rectangular frames, square frames and 4 polygon frames arranged on both sides, which is used to reduce the self-weight of the base 1 and play a role in reducing the overall weight of the jig

[0028] As Figure 3 and Figure 4 and Figure 8As shown, the guide locator support 2 is in an L-shaped structure. The guide locator support 2 is fixedly connected to the base 1 through a locking bolt 7, playing a role in supporting the installation and positioning of the guide locator 3, ensuring the spatial position of the hole position. The spatial coordinate values of the holes of the guide locator 3 are debugged using a laser tracker. After the coordinate values meet the design requirements, they are positioned and locked using the connecting bolt 7. The hole position refers to the X\Y\Z spatial position of the hole. The guide locator 3 is fixedly installed on the other side of the guide locator support 2 through the locking bolt 7, making the guide locator 3 perpendicular to the base 1. One end of the guide locator 3 away from the guide locator support 2 is provided with a through hole, and a fixing member is installed in the through hole.

[0029] As Figure 5 and Figure 6 as well as Figure 8 As shown, the bushing 4 is press-fitted and embedded into the through hole in the guide locator 3. The drill bushing 5 penetrates through the bushing 4. The bushing 4 is used to install drill bushings 5 with the same outer diameter but different inner diameters, which can prevent wear from occurring after the drill bushings 5 are replaced multiple times. The model of the bushing 4 in this embodiment is HB399A35X36, and the drill bushing 5 uses a quick-change drill bushing 5 with the model HB397-1987-20H7X35g6X36. The drill bushing 5 plays a role in guiding the drill reaming tool and positioning the positioning pin 6. The bushing 4 is positioned through the guide locator 3, facilitating the replacement of the drill bushing 5 multiple times.

[0030] As Figure 7 and Figure 9 As shown, the positioning pin 6 penetrates through the drill bushing 5 and is installed on the guide locator 3, playing a role in step-by-step positioning after step-by-step drill reaming. The model of the positioning pin 6 is GB / T-70.1-2008M8x30.

[0031] As Figure 10 and Figure 11As shown, holes 1-4 are the holes for connecting the wing and the fuselage. The connecting standard parts connect the fuselage frames 4-5 and the wing through these holes 1-4. Among them, frames 4 and 5 play the roles of supporting the fuselage skin and connecting the wing. The fixture in this device connects the holes 1-4 on frames 4 and 5 through the positioning pin 6, and its function is to drill the connecting holes of the fuselage and the wing. The specific connection relationship is as follows: The preliminary positioning holes of frames 4 and 5 are positioned and connected with the drill jig through the 4-φ19 positioning pin 6 to ensure the positional accuracy of the connecting holes between the fuselage frame and the wing beam, and to ensure the stability and accuracy of the reamer during the drilling process. Using the reamer, place the reamer in the quick-change drill bushing 5 for reaming operation. By replacing the quick-change drill bushings 5 with different diameters and reamers of different diameter grades, until the preparation of the connecting holes of the fuselage frame in the closed area is completed. After the drill bushing 5 is reamed by the 4-φ19.5 reamer, the φ19.5 positioning pin 64-φ19.5 is inserted into the φ19.5 quick-change drill bushing 5, and then sequentially replaced to the connecting final hole 4-φ20 quick-change drill bushing 5. After the reaming is completed, check whether the size and shape of the connecting holes meet the design requirements. If necessary, perform trimming, clean the cutting residues on the drill jig and the fuselage, and prepare for the reaming operation of the next hole position.

[0032] The guiding and positioning device 3 is connected after being measured and debugged by a laser tracker and a coordinate measuring machine through 4 positioning bolts 7, ensuring the correctness of the hole positions of the guiding and positioning device 3.

[0033] By using a special drill jig, this device can solve the problem of preparing the connecting holes in the closed area of the fuselage structure, and at the same time improve the drilling accuracy and repeatability; improve the accuracy and efficiency of drilling and reaming the connecting holes between the fuselage frame and the wing beam; through the fine-tuning mechanism, the positioning position of the fuselage frame can be quickly adjusted to meet the processing requirements of the connecting holes of the fuselage and wing of different-sized aircraft; the positioning pin 6 mechanism can effectively fix the fuselage frame and the drill jig into one body to ensure the stability of the drilling process; the design of the replaceable quick-change drill jig module makes the drill jig have better versatility and adaptability, providing a high-efficiency and high-accuracy drilling solution for the aviation manufacturing industry, and helping to improve the aircraft assembly quality and production efficiency.

[0034] In the description of the present invention, it should be understood that the orientation or positional relationship indicated by the terms "longitudinal", "transverse", "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", etc. are based on the orientation or positional relationship shown in the drawings, and are only for the convenience of describing the present invention, rather than indicating or implying that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and therefore should not be construed as a limitation to the present invention.

[0035] The embodiments described above are only descriptions of the preferred embodiments of the present invention, and do not limit the scope of the present invention. Without departing from the design spirit of the present invention, various deformations and improvements made by those of ordinary skill in the art to the technical solutions of the present invention shall fall within the protection scope determined by the claims of the present invention.

Claims

1. A drilling jig for preparing the connection holes between a closed fuselage frame and a wing beam, characterized in that: include: Base (1); A guide member, the guide member is fixed on the base (1), wherein the guide member comprises a guide locator support (2) and a guide locator (3), the guide locator support (2) is fixedly connected to the base (1), and the guide locator (3) is fixedly connected to the guide locator support (2); a fixing member, the fixing member is installed on the guide member, wherein the fixing member comprises a bushing (4) and a drill sleeve (5), the bushing (4) is arranged through the guide locator (3), and the drill sleeve (5) is sleeved in the bushing (4); a positioning pin (6), the positioning pin (6) is arranged through the fixing member.

2. The drilling jig for preparing the connection holes between the closed fuselage frame and the wing beam according to claim 1, characterized in that: A positioning pin (6) is provided through the drill sleeve (5).

3. The drilling jig for preparing the connection holes between the closed fuselage frame and the wing beam according to claim 1, characterized in that: Four guide locator supports (2) and four guide locators (3) are provided, and the guide locator supports (2) are fixed at the four corners of the base (1).

4. The drilling jig for preparing the connection holes between the closed fuselage frame and the wing beam according to claim 1, characterized in that: The guide locator support (2) is fixed to the base (1) by means of bolts (7), and the guide locator (3) is fixed to the guide locator support (2) by means of bolts (7).

Images