Riveting tool for cabin door cover lock

Abstract

The utility model discloses a riveting tool for a cabin door cover lock, and belongs to the technical field of manufacturing of machining parts. The riveting tool is composed of a riveting upper die, a buffering cushion, a base and a positioning pin. A buffer pad is arranged in the riveting upper die; three small base holes are formed in the base; and three positioning pins are respectively arranged in the three base small holes. The device is simple in structure and convenient to use; the riveting efficiency is high, two rivets are riveted and formed at a time, and the production cost is reduced; the buffering pad is arranged, so that the riveting consistency is good, and the quality is stable and reliable; and a positioning device is arranged, so that the shell cannot be scratched and bumped during riveting, and the percent of pass of products is improved.

Description

Technical Field

[0001] This utility model relates to a riveting fixture for a hatch cover lock, belonging to the field of manufacturing technology of machined parts. Background Technology

[0002] The latches of the hatch cover lock engage with the latches on the fuselage structure to form a stable structure, thereby firmly securing the hatch in the closed position and preventing it from opening accidentally during flight.

[0003] Cabin door locks are commonly used on the doors of aircraft and other flying vehicles. They are used frequently and in large quantities, resulting in frequent production of such products.

[0004] The hatch cover lock is a modular structure; before use, the individual gaskets must be riveted to the housing. Figure 1 As shown.

[0005] Due to factors such as the product's structural shape, the existing riveting method involves riveting with a single rivet. This method is inefficient, results in poor consistency in the riveting shape between the rivets, and lacks a positioning device. During riveting, the housing is easily scratched or damaged, leading to product rework or even scrap. Utility Model Content

[0006] The present invention aims to solve the technical problem that the existing riveting method uses a single rivet for riveting, which is inefficient, results in poor consistency of the riveting shape between the rivets after riveting, and lacks a positioning device. This makes it easy to scratch or damage the shell during riveting, leading to product rework or even scrap.

[0007] To solve the above-mentioned technical problems, the present invention adopts the following technical solution:

[0008] A riveting fixture for a hatch cover lock consists of a riveting upper mold 1, a buffer pad 2, a base 3, and a positioning pin 4;

[0009] The riveting upper mold 1 is provided with a buffer pad 2;

[0010] The base 3 is provided with three small holes 3.1;

[0011] Each of the three base holes 3.1 is provided with a positioning pin 4.

[0012] The beneficial effects of adopting the above technical solution are:

[0013] 1. This utility model has a simple structure and is easy to use;

[0014] 2. This utility model has high riveting efficiency, riveting two rivets together in one step, thus reducing production costs;

[0015] 3. This utility model has a buffer pad, good riveting consistency, stable quality and reliability;

[0016] 4. This utility model is equipped with a positioning device, which will not cause scratches or bumps to the shell during riveting, thereby improving the product qualification rate. Attached Figure Description

[0017] Figure 1 This is a schematic diagram of the hatch cover lock.

[0018] In the diagram: 5—shell, 6—washer.

[0019] Figure 2 for Figure 1 A sectional view.

[0020] Figure 3 This is a schematic diagram of the structure of this utility model.

[0021] In the diagram: 1—Riveted upper mold, 2—Buffer pad, 3—Base, 4—Positioning pin;

[0022] Figure 4 for Figure 3 Sectional view of A-A.

[0023] In the diagram: 3.1 — small hole in the base.

[0024] Figure 5 This is a schematic diagram illustrating the method of using this utility model.

[0025] Figure 6 This is a cross-sectional view of the C-C section.

[0026] In the diagram: 7—hole a, 8—hole b. Detailed Implementation

[0027] The present invention will be further described in detail below with reference to the accompanying drawings:

[0028] like Figure 3 As shown, a riveting fixture for a hatch cover lock consists of a riveting upper mold 1, a buffer pad 2, a base 3, and a positioning pin 4.

[0029] The riveting upper mold 1 is provided with a buffer pad 2;

[0030] The base 3 has three small holes, such as Figure 4 As shown;

[0031] Each of the three base holes is equipped with a positioning pin 4.

[0032] The method of using this utility model is as follows:

[0033] 1. Insert the locating pin 4 into the small hole 3.1 in the base and place it on the horizontal worktable of the hydraulic press, as follows. Figure 5 As shown;

[0034] 2. Insert the rivets into the hatch cover lock hole a7, as follows: Figure 6 As shown;

[0035] 3. Place the hatch cover lock along the hole b8 onto the locating pin 4 of the riveting fixture, as follows. Figure 6 As shown;

[0036] 4. Insert the buffer pad 2 into the riveting upper mold 1, and connect the upper end of the riveting upper mold 1 to the hydraulic press;

[0037] 5. Adjust the lowering height of the hydraulic press to complete the riveting and assembly of the hatch cover lock.

[0038] The positioning pin 4 and the riveting upper die 1 of the riveting fixture are both made of Cr12MoV material, which is tempered and heat-treated to achieve a hardness of HRC58-62, and the final surface treatment is passivation; the base 3 is made of 45 steel; and the buffer pad 2 is made of rubber.

Claims

1. A riveting tool for a hatch cover lock, characterized by: The riveting tool is composed of a riveting upper die (1), a buffer pad (2), a base (3) and a positioning pin (4); The riveting upper die (1) is internally provided with the buffer pad (2); The base (3) is provided with three base small holes (3.1); The three base small holes (3.1) are respectively provided with the three positioning pins (4).

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