High-shear-resistance rivet constant force adapter

Abstract

The utility model belongs to the technical field of aviation structures, and relates to a high-shear-resistance rivet constant-force adapter which comprises a wrench adapter connected with a constant-force wrench and a rivet adapter connected with a high-shear-resistance rivet, one end of the wrench adapter is provided with an inner square hole matched with a constant-force wrench head, and the other end of the wrench adapter is provided with an outer square hole matched with a high-shear-resistance rivet. A clamping head matched with a clamping groove of the high-shear-resistance rivet is arranged at the end of the rivet adapter, a core pulling hole used for containing a rivet pulling core is formed in the rivet adapter, and the core pulling hole is communicated with the inner square hole; according to the utility model, the high-shear-resistance rivet can be connected with the anchoring force wrench, so that the torque of the rivet after riveting can be accurately measured, the connection effect of the rivet after riveting is ensured, and the product quality is ensured.

Description

Technical Field

[0001] The utility model belongs to the technical field of aviation structures and relates to a high shear resistance rivet fixed force adapter. Background Art

[0002] During the aircraft riveting assembly process, high shear rivets (HB1-607) need to use a fixed force wrench to measure the reversal torque value of the rivets after riveting. This is because the joint of the fixed force wrench is generally used to connect the nut with a fixed force. The bolts, nuts and gaskets are initially connected with an ordinary wrench and then the nuts are tightened to the specified torque value with a fixed force wrench. The fixed force wrench joint is generally square, and the high shear rivet is a countersunk rivet cover, such as item No. 3 in the attached figure. The slot on the rivet cover cannot match the joint of the fixed force wrench. Therefore, the fixed force wrench cannot be used directly to measure the reversal torque of the high shear rivet, and the degree of high shear rivet cannot be checked, affecting the riveting quality. Utility Model Content

[0003] The technical problem solved by the utility model: The utility model overcomes the shortcomings of the prior art and is designed to provide a high shear rivet fixed force adapter for the problems existing in the above-mentioned prior art. Its purpose is to connect a fixed force wrench and a high shear rivet so that the fixed force wrench can measure the reverse installation torque value of the high shear rivet.

[0004] Technical Solution

[0005] A high shear resistant rivet fixed force adapter 1 comprises a wrench adapter connected to a fixed force wrench 2 and a rivet adapter connected to a high shear resistant rivet 3, wherein one end of the wrench adapter is provided with an inner square hole 1a matching the fixed force wrench head 2, the end of the rivet adapter is provided with a clamping head 1b matching the clamping slot of the high shear resistant rivet 3, a core pulling hole 1c for placing a rivet core pulling is provided inside the rivet adapter, and the core pulling hole 1c is connected to the inner square hole 1a.

[0006] Further, the wrench adapter has a larger diameter than the rivet adapter.

[0007] Furthermore, the wrench adapter is made of 45# steel, and its surface is blued.

[0008] Furthermore, the rivet adapter is made of 45# steel, and its surface is bluing treated.

[0009] Furthermore, the width tolerance of the clamp head 1b is -0.1 to 0 mm, and the intermediate interval dimension tolerance is 0 to 0.1 mm.

[0010] Furthermore, the clamping head 1b is loosely matched with the clamping slot of the high shear resistance rivet.

[0011] Beneficial Effects

[0012] The utility model provides a high shear resistant rivet fixed force adapter, which can connect the high shear resistant rivet with a fixed force wrench, so that the torque of the rivet after riveting can be accurately measured, ensuring the connection effect of the rivet after riveting and ensuring the quality of the product. BRIEF DESCRIPTION OF THE DRAWINGS

[0013] Figure 1 This is the structural front view of the utility model;

[0014] Figure 2 It is a structural side view of the utility model;

[0015] Figure 3 It is a bottom view of the structure of the utility model;

[0016] Figure 4 This is the main view of the utility model when in use;

[0017] Figure 5 This is a side view of the utility model when in use;

[0018] Among them: 1. Adapter, 1a. Inner square hole, 1b. Chuck, 1c. Core-pulling hole, 2. Fixed force wrench, 3. High shear-resistant rivet, 4. Product. DETAILED DESCRIPTION

[0019] The present invention will be further described below in conjunction with the accompanying drawings:

[0020] According to the attached Figure 1-3 As shown in the figure, the adapter 1 consists of two parts, one part is the wrench adapter connected to the fixed force wrench 2, and the other part is the rivet adapter connected to the high shear rivet 3. The wrench adapter has a larger diameter and has an inner square hole 1a that matches the fixed force wrench head. The end of the rivet adapter has a clamp 1b that matches the high shear rivet slot and a core pulling hole 1c for placing the core pulling. The entire adapter 1 is made of 45# steel, and the surface is blued.

[0021] The inner square hole 1a of the adapter 1 is designed according to the square axis of the fixed force wrench 2 so that the two can be connected in a matching manner. The core-pulling hole 1c is designed according to the size of the rivet puller so that it can accommodate the core-pulling of the high-shear rivet 3, which is convenient for measuring the torque of the high-shear rivet 3 during the riveting process. The clamp head 1b is designed into a rectangle according to the high-shear rivet 3 slot, with a width tolerance of -0.1 to 0 mm and a middle interval size tolerance of 0 to 0.1 mm, which matches the clearance of the high-shear rivet 3 slot.

[0022] According to the attached Figure 4-5As shown, when the adapter 1 is working, the inner square hole 1a of the wrench adapter is connected to the square shaft of the fixed force wrench 2, so that the torque is transmitted from the fixed force wrench 2 to the adapter 1, and then the torque is transmitted to the high shear rivet 3. The clamping head 1b of the rivet adapter is connected to the clamping groove of the high shear rivet 3, and the core of the high shear rivet 3 is pulled out and placed into the core pulling hole 1c of the adapter, and the torque of the fixed force wrench 2 is adjusted to the required value, and the fixed force wrench 2 is rotated counterclockwise to check whether the high shear rivet 3 rotates. If the high shear rivet 3 rotates, it means that the high shear rivet 3 is unqualified and the riveting degree is insufficient. The high shear rivet 3 can be re-riveted until the reversal torque value is qualified.

Claims

1. A high shear resistant rivet fixed force adapter, characterized in that: It comprises a wrench adapter connected to a fixed force wrench and a rivet adapter connected to a high shear resistance rivet. One end of the wrench adapter is provided with an inner square hole matching the fixed force wrench head, the end of the rivet adapter is provided with a clamping head matching the high shear resistance rivet clamping slot, a core pulling hole for placing the rivet core pulling is provided inside the rivet adapter, and the core pulling hole is connected to the inner square hole.

2. A high shear resistant rivet fixed force adapter according to claim 1, characterized in that: The wrench adapter has a larger diameter than the rivet adapter.

3. A high shear resistant rivet fixed force adapter according to claim 1, characterized in that: The wrench adapter is made of 45# steel and its surface is blued.

4. A high shear resistant rivet fixed force adapter according to claim 1, characterized in that: The rivet adapter is made of 45# steel and its surface is blued.

5. The high shear resistance rivet fixed force adapter according to claim 1, characterized in that: The width tolerance of the clamp head is -0.1~0mm, and the intermediate interval size tolerance is 0~0.1mm.

6. A high shear resistant rivet fixed force adapter according to claim 5, characterized in that: The clamp head and the high shear resistance rivet slot are clearance matched.

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