Riveting clamp for outer cover assembly

Abstract

The invention provides a riveting clamp for an outer cover assembly. The riveting clamp comprises two large mechanisms, namely a riveting positioning seat mechanism and an angle adjusting mechanism. The riveting positioning seat mechanism comprises a lower die, a riveting rod, a cylindrical pin, a plug pin, a guide column, a first pressing strip, a second pressing strip, a third pressing strip, a fourth pressing strip, a fifth pressing strip, a hexagon socket cap screw and a hexagon bolt. The angle adjusting mechanism comprises an angle seat, a riveting rod, a plug pin and a hexagon head bolt. The riveting clamp for the outer cover assembly has the advantages that the riveting requirement of the outer cover assembly can be met, and the technological requirement can be guaranteed. Operation is flexible, labor-saving and labor-saving, understanding is easy, and workers with extremely high specialty are not needed. And the labor cost is reduced for enterprises. The project has great application value in the riveting process of various parts.

Description

Technical Field

[0001] The invention relates to the technical field of aeroengines, and in particular to a riveting fixture for an outer cover assembly. Background Art

[0002] At present, during the assembly process of aircraft engines, it is necessary to rivet the various parts of the outer cover assembly together with rivets. The outer cover assembly is large in size and irregular in shape, and it requires two people to lift it together. In addition, there are many parts that need to be riveted, and the relative position relationship between the parts is also very high. Commonly used riveting machines are first limited in space, and secondly, the shape of the pad is fixed and cannot meet the surface requirements of each part. Therefore, riveting cannot be performed on a conventional riveting machine. Therefore, designing a high-efficiency riveting fixture with a positioning function to ensure simple, flexible and labor-saving operation has become the key to solving the problem. Summary of the invention

[0003] The purpose of the present invention is to solve the problems that when the engine cover assembly is riveted, the riveting machine cannot be used and the positioning cannot be performed. The mode of the lower mold and the upper pressure strip is adopted, and the relative position relationship between the mold and the pressure strip is constrained by the guide column, and the pressure nails are pressed to fix it, so as to ensure that the parts do not shift during the riveting process. The upper pressure strip is provided with guide holes along the riveting direction to improve the riveting accuracy. In addition, an adjustable angle mechanism is added to ensure that the force direction of each part is uniform when riveting, thereby solving the riveting problem of a type of parts.

[0004] The present invention provides a riveting fixture for an outer cover assembly, comprising two major mechanisms: a riveting positioning seat mechanism and an angle adjustment mechanism;

[0005] The riveting positioning seat mechanism includes a lower die 1, a rivet rod 3, a cylindrical pin 4, a latch pin 5, a guide column 6, a pressure strip 1 7, a pressure strip 2 8, a pressure strip 3 9, a pressure strip 4 10, a pressure strip 5 11, a hexagon socket head screw 12, and a hexagon bolt 13;

[0006] The angle adjustment mechanism includes: an angle seat 2, a rivet rod 3, a latch pin 4, and a hexagonal head bolt 5;

[0007] The lower die 1 is installed on the angle seat 2 by means of hexagonal bolts 13, latches 5 and cylindrical pins 4; Riveting positioning seat mechanism: lower die 1: fits with the profile of the outer cover assembly to play a positioning role, rivet rod 3: used for manual riveting guide column 6: guides the pressure strip and the lower die to ensure the relative position relationship between the pressure strip one 7, pressure strip two 8, pressure strip three 9, pressure strip four 10, pressure strip five 11, hexagon socket head screws 12 lock the pressure strip and the lower die 1 to clamp the parts.

[0008] Adjustable angle mechanism: A series of holes for inserting pins are set on the angle seat 2 according to calculations, and corresponding holes are set on the lower die 1 corresponding to the holes of the angle seat. The lower die 1 is connected to the angle seat 2 through a cylindrical pin 4. The cylindrical pin 4 acts as a rotating shaft. The hexagonal head bolt 5 is used to lock the angle seat 2.

[0009] In order to correctly rivet the various parts of the outer cover assembly together, the following technical problems must be solved when setting up the device:

[0010] Meet the pad shape requirements of each riveting point;

[0011] There are many places where the outer cover assembly needs to be riveted, and the outer cover assembly itself has an irregular surface, and the pad iron profile required under each rivet is also different. To solve this problem, a lower mold with a full surface shape is set under the outer cover assembly to hold up the entire outer cover assembly to ensure that there is a pad iron with the correct profile under each riveted position.

[0012] Ensure that the parts that need to be riveted do not shift during the riveting process;

[0013] On the basis of setting the lower die at the bottom, a pressure strip is set at the top, and the pressure strip profile is completely in line with the profile of the part to be riveted. A guide column is set between the lower die and the pressure strip to guide and ensure the positional relationship between the upper and lower mechanisms. The lower die is provided with a threaded hole, and the upper pressure strip is provided with a countersunk hole. The lower die and the upper pressure strip are fixed by screws. This ensures that the parts do not shift.

[0014] The parts to be riveted are widely distributed and have large angle differences. How to ensure the quality of riveting and meet the force direction of all angles?

[0015] On the upper pressure bar, a guide hole for the riveting rod is set along the riveting direction to ensure the direction of the force during riveting. In addition, by setting an adjustable angle seat, the angle of the entire mechanism can be freely adjusted, and the operator can adjust it to a suitable angle as needed.

[0016] Advantages of the present invention:

[0017] The riveting fixture for the cover assembly of the present invention can meet the riveting requirements of the cover assembly and ensure the process requirements. It is flexible to operate, labor-saving and time-saving, easy to understand, and does not require highly professional workers. It reduces labor costs for enterprises. This project will have great application value in the riveting process of various parts. BRIEF DESCRIPTION OF THE DRAWINGS

[0018] The present invention is further described in detail below in conjunction with the accompanying drawings and embodiments:

[0019] Figure 1 It is a schematic diagram of the riveting positioning seat mechanism;

[0020] Figure 2 is a schematic diagram of the angle adjustment mechanism;

[0021] Figure 3 It is a three-dimensional schematic diagram. DETAILED DESCRIPTION

[0022] The present invention will be further explained below in conjunction with specific implementation plans, but the present invention is not limited thereto. The structures, proportions, sizes, etc. illustrated in the drawings of the specification are only used to match the contents disclosed in the specification for people familiar with this technology to understand and read, and are not used to limit the restrictive conditions under which the present invention can be implemented. Therefore, they have no substantive technical significance. Any structural modification, change in proportional relationship or adjustment of size should still fall within the scope of the technical content disclosed by the present invention without affecting the effects and purposes that can be achieved by the present invention.

[0023] The present invention provides a riveting fixture for an outer cover assembly, comprising two major mechanisms: a riveting positioning seat mechanism and an angle adjustment mechanism;

[0024] The riveting positioning seat mechanism includes a lower die 1, a rivet rod 3, a cylindrical pin 4, a latch pin 5, a guide column 6, a pressure strip 1 7, a pressure strip 2 8, a pressure strip 3 9, a pressure strip 4 10, a pressure strip 5 11, a hexagon socket head screw 12, and a hexagon bolt 13;

[0025] The angle adjustment mechanism includes: an angle seat 2, a rivet rod 3, a latch pin 4, and a hexagonal head bolt 5;

[0026] The lower die 1 is installed on the angle seat 2 by means of hexagonal bolts 13, latches 5 and cylindrical pins 4; Riveting positioning seat mechanism: lower die 1: fits with the profile of the outer cover assembly to play a positioning role, rivet rod 3: used for manual riveting guide column 6: guides the pressure strip and the lower die to ensure the relative position relationship between the pressure strip one 7, pressure strip two 8, pressure strip three 9, pressure strip four 10, pressure strip five 11, hexagon socket head screws 12 lock the pressure strip and the lower die 1 to clamp the parts.

[0027] Adjustable angle mechanism: A series of holes for inserting pins are set on the angle seat 2 according to calculations, and corresponding holes are set on the lower die 1 corresponding to the holes of the angle seat. The lower die 1 is connected to the angle seat 2 through a cylindrical pin 4. The cylindrical pin 4 acts as a rotating shaft. The hexagonal head bolt 5 is used to lock the angle seat 2.

[0028] In order to correctly rivet the various parts of the outer cover assembly together, the following technical problems must be solved when setting up the device:

[0029] Meet the pad shape requirements of each riveting point;

[0030] There are many places where the outer cover assembly needs to be riveted, and the outer cover assembly itself has an irregular surface, and the pad iron profile required under each rivet is also different. To solve this problem, a lower mold with a full surface shape is set under the outer cover assembly to hold up the entire outer cover assembly to ensure that there is a pad iron with the correct profile under each riveted position.

[0031] Ensure that the parts that need to be riveted do not shift during the riveting process;

[0032] On the basis of setting the lower die at the bottom, a pressure strip is set at the top, and the pressure strip profile is completely in line with the profile of the part to be riveted. A guide column is set between the lower die and the pressure strip to guide and ensure the positional relationship between the upper and lower mechanisms. The lower die is provided with a threaded hole, and the upper pressure strip is provided with a countersunk hole. The lower die and the upper pressure strip are fixed by screws. This ensures that the parts do not shift.

[0033] The parts to be riveted are widely distributed and have large angle differences. How to ensure the quality of riveting and meet the force direction of all angles?

[0034] On the upper pressure bar, a guide hole for the riveting rod is set along the riveting direction to ensure the direction of the force during riveting. In addition, by setting an adjustable angle seat, the angle of the entire mechanism can be freely adjusted, and the operator can adjust it to a suitable angle as needed.

[0035] Matters not covered by the present invention are known technologies.

[0036] Although embodiments of the present invention have been shown and described, it will be appreciated by those skilled in the art that various changes, modifications, substitutions and variations may be made to the embodiments without departing from the principles and spirit of the present invention, and that the scope of the present invention is defined by the appended claims and their equivalents.

Claims

1. A riveting fixture for an outer cover assembly, characterized in that: The riveting fixture for the outer cover assembly comprises two major mechanisms: a riveting positioning seat mechanism and an angle adjustment mechanism; The riveting positioning seat mechanism comprises a lower die (1), a rivet rod (3), a cylindrical pin (4), a latch pin (5), a guide column (6), a pressure strip 1 (7), a pressure strip 2 (8), a pressure strip 3 (9), a pressure strip 4 (10), a pressure strip 5 (11), a hexagon socket head screw (12), and a hexagon bolt (13); The angle adjustment mechanism comprises: an angle seat (2), a rivet rod (3), a latch pin (4), and a hexagonal head bolt (5); The lower die (1) is installed on the angle seat (2) by means of a hexagonal bolt (13), a latch pin (5) and a cylindrical pin (4); a riveting positioning seat mechanism: the lower die (1): fits with the profile of the outer cover component to play a positioning role, a rivet rod (3): used for manual riveting, a guide column (6): guides the pressure strip and the lower die to ensure the relative position relationship between the pressure strip one (7), pressure strip two (8), pressure strip three (9), pressure strip four (10), pressure strip five (11), and a hexagon socket head screw (12) to lock the pressure strip and the lower die (1) to clamp the parts. Adjustable angle mechanism: A series of holes for inserting pins are arranged on the angle seat (2) according to calculation, and corresponding holes are arranged on the lower die (1) corresponding to the holes of the angle seat. The lower die (1) and the angle seat (2) are connected by a cylindrical pin (4). The cylindrical pin (4) acts as a rotating shaft. The hexagonal head bolt (5) is used to lock the angle seat (2).

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