Lug fixing structure for fixing flexible clamping plate system product of drilling and riveting equipment

Abstract

The utility model discloses a lug fixing structure, particularly discloses a lug fixing structure for fixing a flexible clamping plate system product of drilling and riveting equipment, and belongs to the technical field of design and manufacturing of aircraft production process equipment. According to the lug fixing structure for fixing the flexible clamping plate system product of the drilling and riveting equipment, supporting and fixing position adjustment can be conducted according to an aircraft fuselage wall plate needing to be drilled and riveted. The lug fixing structure comprises a connecting clamping plate, a lug support assembly and a wall plate positioning assembly, the wall plate positioning assembly is arranged on the lug support assembly in a position adjustable mode, and the lug support assembly is arranged at the corresponding position of the flexible clamping plate system through the connecting clamping plate.

Description

Technical Field

[0001] The utility model relates to an ear piece fixing structure, in particular to an ear piece fixing structure used for fixing products of a flexible cardboard system of drilling and riveting equipment, and belongs to the technical field of design and manufacturing of aircraft production process equipment. Background Art

[0002] Explanation of terms

[0003] 1) Aircraft parts refer to the assembly of a part of the aircraft during the manufacturing stage;

[0004] 2) Automatic drilling and riveting machine refers to a kind of equipment mainly used in the manufacture of aviation and aerospace parts. This equipment uses machines to complete the process of making holes and installing connectors that could only be done manually;

[0005] 3) Automatic drilling and riveting refers to a new process used in the assembly process of aircraft parts. This method uses an automatic drilling and riveting machine to complete the process of making holes, countersinking, injecting glue, inserting connectors or installing connectors on pre-connected parts;

[0006] 4) Product or skin assembly refers to an aircraft component with an uncertain curvature consisting of the outer skin and long stringers in the aircraft component;

[0007] 5) Curvature refers to the shape of the skin component formed at different radii.

[0008] At present, in the domestic military and civilian aircraft manufacturing industry, when using online programming automatic drilling and riveting equipment to position products, the positioning ears are usually used to fasten the products on the supporting pallets. Due to the different shapes, lengths and design ideas of aircraft wall panels, the specifications and sizes of the positioning ears of each wall panel product vary greatly, and the diameters of the positioning holes on them are also different, so a special positioning bracket is required.

[0009] When the existing wall panel components are automatically drilled and riveted, the positioning method is to use special tooling or tooling cardboard, and the ear bracket is customized according to the specific product and has no universal function. The main disadvantages of the existing technology are as follows:

[0010] 1) The ear bracket is not universal, and each set of products uses a pair of dedicated pallets and brackets;

[0011] 2) When switching products, it is necessary to manually replace the pallets or tooling, resulting in a huge waste of manpower and material;

[0012] 3) Even if the positioning tooling has a certain degree of flexibility, the ear bracket will have to be replaced when switching products for different customers. Utility Model Content

[0013] The technical problem to be solved by the utility model is to provide an ear piece fixing structure for fixing products of a flexible cardboard system of drilling and riveting equipment, which can support and adjust the fixed position of aircraft fuselage wall panels to be drilled and riveted as required.

[0014] The technical solution adopted to solve the above technical problems is: an ear piece fixing structure for fixing the flexible pallet system products of drilling and riveting equipment, including a connecting pallet, the ear piece fixing structure also includes an ear piece bracket assembly and a wall panel positioning assembly, the wall panel positioning assembly is arranged on the ear piece bracket assembly in an adjustable position, and the ear piece bracket assembly is arranged at the corresponding position of the flexible pallet system through the connecting pallet.

[0015] Furthermore, the connecting card is a flexible card group consisting of a group of flexible card groups with adjustable curvatures, and a set of flexible card system includes at least two groups of flexible card groups, and at least one group of ear bracket components is arranged on each group of flexible card groups.

[0016] A preferred embodiment of the above scheme is that the ear bracket assembly includes an L-shaped support frame and connecting bolts, and a fixed mounting hole is arranged on the vertical edge of the L-shaped support frame. The L-shaped support frame can be detachably arranged on the corresponding connecting card plate through its vertical edge with the cooperation of the connecting bolts and the fixed mounting hole, and the wall panel positioning assembly can be reciprocated along the horizontal edge of the L-shaped support frame and is arranged on the horizontal edge of the L-shaped support frame.

[0017] Furthermore, a position installation mechanism extending along the length direction is provided on the horizontal side of the L-shaped support frame, and the wall panel positioning assembly can reciprocate along the length direction on the horizontal side of the L-shaped support frame through the position installation mechanism.

[0018] A preferred embodiment of the above scheme is that the position mounting mechanism includes at least an adjusting long hole extending along the length direction of the horizontal edge, and the wall panel positioning assembly is arranged on the horizontal edge of the L-shaped support frame so as to be reciprocatingly movable along the length direction with the cooperation of the adjusting long hole.

[0019] Furthermore, the position mounting mechanism also includes a limiting groove extending along the length direction of the horizontal edge, and an adjusting long hole is arranged in the limiting groove. The wall panel positioning component arranged on the horizontal edge of the L-shaped support frame can be reciprocated along the length direction of the horizontal edge through the adjusting long hole and maintains a vertical position with the cooperation of the limiting groove.

[0020] A preferred embodiment of the above scheme is that the wall panel positioning assembly at least includes a positioning pin group and an installation fixing member group, and the positioning pin group is arranged in a corresponding adjustment long hole so as to be reciprocatingly movable along the length direction of the horizontal side in cooperation with the installation fixing member group.

[0021] Furthermore, the positioning pin group includes multiple positioning pins whose positioning diameters are adapted to the aperture diameters of the positioning holes of the wall panel skin to be positioned, each positioning pin includes a positioning section at the top, a limiting section adjacent to the positioning section, a guide section adjacent to the limiting section, and a lower connecting section, the diameter of the positioning section is adapted to the aperture diameter of the positioning hole, the diameter of the limiting section is adapted to the width of the limiting groove, the diameter of the guide section is adapted to the width of the adjusting long hole, and the installation fixing member group can be locked or released with the cooperation of the connecting section and arranged on the horizontal edge of the corresponding L-shaped support frame.

[0022] A preferred embodiment of the above scheme is that the installation fixing component group includes multiple sets of handle nuts whose number is equal to the number of positioning pins, and a connecting thread is provided on the connecting section. Each positioning pin can be locked or loosened on the horizontal edge of the corresponding L-shaped support frame through the connecting section with the cooperation of the corresponding handle nut.

[0023] Furthermore, the length of the limiting section is not shorter than the depth of the limiting groove.

[0024] The beneficial effects of the utility model are as follows: the technical solution provided by the present application is based on the external connecting card plate, and the ear piece fixing structure of the present application is formed by adding an ear piece bracket assembly and a wall panel positioning assembly, and the wall panel positioning assembly is arranged on the ear piece bracket assembly in an adjustable position, and then the ear piece bracket assembly is arranged at the corresponding position of the flexible card plate system through the connecting card plate. In this way, since the wall panel positioning assembly of the present application that plays a supporting and fixing role is arranged on the connecting card plate through the ear piece bracket assembly in an adjustable position, the technical problem that the positioning ear piece of the corresponding aperture must be supported and fixed by a dedicated positioning bracket in the prior art is solved, so that the aircraft fuselage wall panel to be drilled and riveted can be supported and fixed according to the needs. The adjustment of the position, the versatility of the drilling and riveting tooling is improved, the operation frequency and labor intensity of the operator to assemble the tooling before and after drilling and riveting are reduced, and the working difficulty of the operator is reduced. BRIEF DESCRIPTION OF THE DRAWINGS

[0025] Figure 1 This is a front view of an ear piece bracket assembly involved in an ear piece fixing structure for fixing a product of a flexible cardboard system of a drilling and riveting equipment according to the utility model;

[0026] Figure 2 for Figure 1 A-direction view;

[0027] Figure 3 This is a front view of a wall panel positioning assembly involved in the ear piece fixing structure for fixing a flexible cardboard system product of a drilling and riveting equipment according to the utility model;

[0028] Figure 4 This is a front view of a positioning pin group involved in the ear piece fixing structure for fixing the flexible cardboard system product of the drilling and riveting equipment of the utility model;

[0029] Figure 5 It is a schematic diagram of the position of the ear piece fixing structure used for fixing the flexible cardboard system product of the drilling and riveting equipment in the utility model when the connecting cardboard is installed.

[0030] Marked in the figure are: connecting clamp plate 1, L-shaped support frame 2, adjusting long hole 3, limiting groove 4, positioning section 5, limiting section 6, guide section 7, connecting section 8, handle nut 9, aircraft fuselage wall panel 10. DETAILED DESCRIPTION

[0031] like Figure 1 , Figure 2 , Figure 3 , Figure 4 as well as Figure 5 The present invention shows an ear piece fixing structure for fixing products of a flexible pallet system of drilling and riveting equipment, which can support and adjust the fixed position of aircraft fuselage wall panels to be drilled and riveted as needed. The ear piece fixing structure includes a connecting card 1, and the ear piece fixing structure also includes an ear piece bracket assembly and a wall panel positioning assembly. The wall panel positioning assembly is arranged on the ear piece bracket assembly in an adjustable position, and the ear piece bracket assembly is arranged at a corresponding position of the flexible pallet system through the connecting card 1. The technical solution provided by the present application is based on an external connecting card, and the ear piece fixing structure of the present application is formed by adding an ear piece bracket assembly and a wall panel positioning assembly, and the wall panel positioning assembly is arranged on the ear piece bracket assembly in an adjustable position, and then the ear piece bracket assembly is arranged at a corresponding position of the flexible pallet system through the connecting card. In this way, since the wall panel positioning assembly that plays a supporting and fixing role in the present application is arranged on the connecting card through an ear bracket assembly with an adjustable position, the technical problem in the prior art that the positioning ears of corresponding apertures must be supported and fixed by a dedicated positioning bracket is solved, so that the supporting and fixing position of the aircraft fuselage wall panel 10 to be drilled and riveted as needed can be adjusted, thereby improving the versatility of the drilling and riveting tooling, reducing the operation frequency and labor intensity of the operators in assembling the tooling before and after drilling and riveting, and reducing the work difficulty of the operators.

[0032] Combined with the structure of the flexible pallet system of the drilling and riveting equipment, the connecting pallet 1 of the present application is a flexible pallet group composed of a group of flexible pallets with adjustable curvature. A set of flexible pallet system includes at least two groups of flexible pallet groups, and at least one group of ear bracket assemblies are arranged on each group of flexible pallet groups.

[0033] Accordingly, in order to facilitate manufacturing, assembly, and subsequent adjustment in use, the ear bracket assembly of the present application includes an L-shaped support frame 2 and a connecting bolt, a fixed installation hole is provided on the vertical side of the L-shaped support frame 2, the L-shaped support frame 2 can be detachably arranged on the corresponding connecting card plate 1 through its vertical side in cooperation with the connecting bolt and the fixed installation hole, and the wall panel positioning assembly can be reciprocated along the horizontal side of the L-shaped support frame 2 and arranged on the horizontal side of the L-shaped support frame 2. At this time, a position installation mechanism extending along the length direction is provided on the horizontal side of the L-shaped support frame 2, and the wall panel positioning assembly can reciprocate along the length direction on the horizontal side of the L-shaped support frame 2 through the position installation mechanism. More specifically, the position installation mechanism at least includes an adjustment long hole 3 extending along the length direction of the horizontal side, and the wall panel positioning assembly can be reciprocated along the length direction and arranged on the horizontal side of the L-shaped support frame 2 in cooperation with the adjustment long hole 3. In order to improve the stability of the positioning pin, the positioning installation mechanism of the present application also includes a limiting groove 4 extending along the length direction of the horizontal edge, and the adjusting long hole 3 is arranged in the limiting groove 4. The wall panel positioning component arranged on the horizontal edge of the L-shaped support frame 2 can be reciprocated by adjusting the long hole 3 along the length direction of the horizontal edge and maintains a vertical position with the cooperation of the limiting groove 4.

[0034] Further, as another important component improved in the present application, similarly, in order to facilitate manufacturing, assembly, and subsequent adjustment in use, the wall panel positioning assembly of the present application at least includes a positioning pin group and an installation fixing member group, and the positioning pin group can be reciprocated and arranged in the corresponding adjustment long hole 3 along the length direction of the horizontal side in cooperation with the installation fixing member group. At this time, the positioning pin group of the present application preferably includes a plurality of positioning pins whose positioning diameters are adapted to the aperture of the positioning hole of the wall panel skin to be positioned, and each positioning pin includes a positioning section 5 at the top, a limiting section 6 adjacent to the positioning section, a guide section 7 adjacent to the limiting section, and a lower connecting section 8, the diameter of the positioning section 5 is adapted to the aperture of the positioning hole, the diameter of the limiting section 6 is adapted to the width of the limiting groove 4, and the diameter of the guide section 7 is adapted to the width of the adjustment long hole 3, and the installation fixing member group can be locked or released in cooperation with the connecting section 8 and arranged on the horizontal side of the corresponding L-shaped support frame 2. The installation fixing component set preferably includes a plurality of sets of handle nuts 9 whose number is equal to the number of positioning pins, and a connecting thread is provided on the connecting section 8. Each positioning pin can be locked or loosened through the connecting section 8 in cooperation with the corresponding handle nut 9 and arranged on the horizontal edge of the corresponding L-shaped support frame 2. According to the installation requirements, the length of the limiting section 6 is not shorter than the depth of the limiting groove 4.

[0035] In summary, the above technical solution of the present application solves the following technical problems:

[0036] 1) By designing a set of 2-4 universal ear brackets for use in pairs, the existing dedicated brackets can be replaced;

[0037] 2) Existing flexible tooling and semi-flexible tooling can have a certain degree of versatility when using the universal ear bracket designed in this application;

[0038] 3) Some special tooling can achieve a certain degree of flexibility when using the universal ear bracket of the present application, and has some versatility and flexibility;

[0039] 4) The universal ear bracket of the present application is applicable to the ear positioning of all wall panel assemblies;

[0040] 5) Reduce the labor intensity of operators and ease the difficulty of their work.

[0041] The technical solution of the present application is further described below through specific embodiments:

[0042] 1) Optimize the original ear piece bracket;

[0043] 2) The original bracket is lengthened and a 20mm wide and 5mm deep step groove is made, and a 9mm groove about 90mm long is opened at the midline;

[0044] 3) Design a set of quick-release locating pins with a minimum of 6mm and a maximum of 20mm. For locating pins of 6-8mm, a 20×20mm locating block can effectively enhance the strength of small diameter locating pins;

[0045] 4) The positioning pin can slide freely in the step groove to facilitate quick positioning of the product;

[0046] 5) After the initial positioning of the product is completed, it can be quickly locked, and the wall panel assembly can be firmly attached to the surface of the pallet by means of bandages, etc.;

[0047] 6) The ear brackets are used in pairs and can be designed into 4 identical ones. One bracket is fixed on each of the first and last pallets. The brackets can be disassembled and installed on other pallets as needed according to the length of the product.

[0048] Design features, uses and effects of each part:

[0049] Ear bracket: used for positioning and connecting aircraft wall panel components and pallets;

[0050] Slideway: used for the positioning pin to slide forward and backward;

[0051] Positioning bolt slot: used for fastening the positioning pin and the ear bracket;

[0052] Locating pin and handle nut: It can slide back and forth in the slide groove. After the initial positioning of the product is completed, it passes through the ear positioning hole and is tightened with the handle nut. The 20×20 size of the locating pin is slightly smaller than the size of the slide groove to ensure that the parallelism of the product is basically reliable.

[0053] The beneficial effects brought by the above technical solution are as follows:

[0054] 1) The universal ear bracket of the present application can conveniently carry out the initial positioning of the product and cooperate with the bandage to complete the final positioning of the wall panel assembly;

[0055] 2) It has strong versatility and can increase and improve the flexibility of the fixed pallet tooling, making it have a certain degree of versatility;

[0056] 3) When the universal ear bracket of the present application is used in conjunction with a flexible automatic drilling and riveting tool or a flexible automatic drilling and riveting pallet, the application scope of the product can be effectively expanded.

Claims

1. An ear piece fixing structure for fixing products of a flexible cardboard system of a drilling and riveting equipment, comprising a connecting cardboard (1), characterized in that: The ear piece fixing structure also includes an ear piece bracket assembly and a wall plate positioning assembly. The wall plate positioning assembly is arranged on the ear piece bracket assembly in an adjustable position. The ear piece bracket assembly is arranged at a corresponding position of the flexible card system through a connecting card (1).

2. The ear piece fixing structure for fixing products of the flexible pallet system of drilling and riveting equipment according to claim 1 is characterized in that: The connecting card (1) is a flexible card group consisting of a group of flexible card groups with adjustable curvatures. A set of flexible card system includes at least two groups of flexible card groups, and at least one group of ear bracket components is arranged on each group of flexible card groups.

3. The ear piece fixing structure for fixing products of the flexible pallet system of drilling and riveting equipment according to claim 1 or 2, characterized in that: The ear bracket assembly comprises an L-shaped support frame (2) and connecting bolts, and a fixing installation hole is arranged on the vertical side of the L-shaped support frame (2). The L-shaped support frame (2) can be detachably arranged on the corresponding connecting card plate (1) through its vertical side in cooperation with the connecting bolts and the fixing installation hole, and the wall panel positioning assembly can be reciprocated and arranged on the horizontal side of the L-shaped support frame (2) along the horizontal side of the L-shaped support frame (2).

4. The ear piece fixing structure for fixing products of the flexible pallet system of drilling and riveting equipment according to claim 3 is characterized in that: A position installation mechanism extending in the length direction is arranged on the horizontal side of the L-shaped support frame (2), and the wall panel positioning component can reciprocate in the length direction on the horizontal side of the L-shaped support frame (2) through the position installation mechanism.

5. The ear piece fixing structure for fixing products of the flexible pallet system of drilling and riveting equipment according to claim 4 is characterized in that: The position installation mechanism at least comprises an adjusting long hole (3) extending along the length direction of the horizontal edge, and the wall panel positioning component is arranged on the horizontal edge of the L-shaped support frame (2) so as to be reciprocatingly movable along the length direction in cooperation with the adjusting long hole (3).

6. The ear piece fixing structure for fixing products of the flexible pallet system of drilling and riveting equipment according to claim 5 is characterized in that: The position installation mechanism also includes a limiting groove (4) extending along the length direction of the horizontal side, and the adjusting long hole (3) is arranged in the limiting groove (4). The wall panel positioning component arranged on the horizontal side of the L-shaped support frame (2) can be reciprocated along the length direction of the horizontal side through the adjusting long hole (3) and is maintained in a vertical position with the cooperation of the limiting groove (4).

7. The ear piece fixing structure for fixing products of the flexible pallet system of drilling and riveting equipment according to claim 6 is characterized in that: The wall panel positioning assembly comprises at least a positioning pin group and an installation fixing member group. The positioning pin group is arranged in a corresponding adjustment long hole (3) so as to be reciprocatingly movable along the length direction of the horizontal side in cooperation with the installation fixing member group.

8. The ear piece fixing structure for fixing products of the flexible pallet system of drilling and riveting equipment according to claim 7 is characterized in that: The positioning pin group includes a plurality of positioning pins whose positioning diameters are adapted to the apertures of positioning holes of the wall panel skin to be positioned. Each positioning pin includes a positioning section (5) at the top, a limiting section (6) adjacent to the positioning section, a guide section (7) adjacent to the limiting section, and a lower connecting section (8). The diameter of the positioning section (5) is adapted to the aperture of the positioning hole, the diameter of the limiting section (6) is adapted to the width of the limiting groove (4), and the diameter of the guide section (7) is adapted to the width of the adjusting long hole (3). The mounting fixing member group can be locked or released in cooperation with the connecting section (8) and arranged on the horizontal edge of the corresponding L-shaped support frame (2).

9. The ear piece fixing structure for fixing products of the flexible pallet system of drilling and riveting equipment according to claim 8 is characterized in that: The installation fixing component group comprises a plurality of sets of handle nuts (9) whose number is equal to the number of positioning pins, and a connecting thread is arranged on the connecting section (8). Each positioning pin can be locked or loosened through the connecting section (8) in cooperation with the corresponding handle nut (9) and arranged on the horizontal edge of the corresponding L-shaped support frame (2).

10. The ear piece fixing structure for fixing products of the flexible pallet system of drilling and riveting equipment according to claim 9, characterized in that: The length of the limiting section (6) is not shorter than the depth of the limiting groove (4).

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