Inner self-locking rivet, and rivet composite connection device and connection method

A composite connection and rivet technology, which is applied in the direction of rivets, connection members, thin plate connections, etc., can solve the problems of poor sealing of joints, reduction of corrosion resistance of joints, and large application limitations, so as to prevent upset and deformation and reduce riveting force , reducing the effect of the required sum

Inactive Publication Date: 2019-10-11
SHANGHAI JIAO TONG UNIV
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

However, bolted connections also have many disadvantages. The use of bolted connections requires pre-drilling and tapping of each layer of connected plates, which not only increases the additional processing steps of the bolted connection process, but also prefabricates the screw holes of each layer of plates during clamping. The neutrality requirement in the process is high; the bolted connection usually has a long screw structure, and the cooperation of other parts such as nuts and washers is required to form the bolted joint, which makes the joint volume and quality very large, which not only makes its application The limitation is large, and it causes additional weight gain, which is contrary to the trend of lightweight structure; in addition, the upper and lower open structure of the bolt-nut combination leads to poor sealing of the joint, reduces the corrosion resistance of the joint, and limits the bolt connection The service range of the joint

Method used

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  • Inner self-locking rivet, and rivet composite connection device and connection method
  • Inner self-locking rivet, and rivet composite connection device and connection method
  • Inner self-locking rivet, and rivet composite connection device and connection method

Examples

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Embodiment 1

[0148] Embodiment 1 is a preferred example of the basic embodiment.

[0149] Such as figure 2 As shown, this embodiment includes: a semi-hollow rivet 1, a drive head 2 with a central positioning boss, a blank holder 3, a plate to be connected 4, and a flat-bottom mold 5, wherein: the driving head 2 with a central positioning boss passes through the convex The raised teeth engage with the recessed teeth on the top of the semi-hollow rivet cover 101, the positioning boss matches the positioning groove 102 on the rivet cover 101, and is jointly located above the plates 4 to be connected, and the blank holder 3 is located at the top of the rivet cover 101. Above the plates 4, the mold 5 is located below the plates 4 to be connected.

[0150] Such as figure 1 As shown, the semi-tubular rivet 1 includes: a rivet cover 101 and a semi-tubular rivet body 103 integrally connected, wherein: the central positioning boss 102 of the rivet cover 101 and the rivet body 103 are arranged coa...

Embodiment 2

[0165] Embodiment 2 is a preferred example of the basic embodiment.

[0166] Such as Figure 8 As shown, the first layer 401 of the plates 4 to be connected in this embodiment is a 10mm 45 steel plate, and the second layer 402 is a 20mm 7075 aluminum alloy.

[0167] Compared with Example 1, the total thickness of the upper and lower panels is larger, and considering that the upper panel needs to be detachable for easy maintenance and replacement, the third variation of the present invention is adopted, that is, the inner panel without umbrella-shaped nail caps. Screw thread 108 holes 107 rivets 1, and cooperate with the bolt 8 of corresponding size. The height of the rivet body 103 is 20.0 mm, the outer diameter is 12.0 mm, the inner wall is an M10 internal thread 108, the inner diameter of the inner self-locking boss 104 is 7.0 mm, and the height of the boss is 1.5 mm. The diameter of the M10 bolt 8 cap matched with the internal thread 108 is 15.0mm;

[0168] Compared with...

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Abstract

The invention provides an inner self-locking rivet, a rivet composite connection device and a rivet composite connection method. The inner self-locking rivet comprises a rivet body (103), an inner self-locking boss (104), a rivet body end portion (105) and a rivet body head assembly, wherein a rivet cavity is formed in the rivet body (103), one end of the rivet cavity is connected with the rivet body head assembly, the other end of the rivet cavity is connected with the rivet body end portion (105), the inner self-locking boss (104) is arranged on one side, close to the rivet body end portion(105), of the rivet cavity, the rivet body end portion (105) comprises a wedge-shaped structure matched with the inner self-locking boss (104), and surface structures are arranged on the inner wall and / or the outer wall of the rivet body (103), and each surface structure comprises an arbitrary type or a combination of multiple arbitrary types of a smooth structure, a threaded structure and a grooved structure.

Description

technical field [0001] The present invention relates to the field of material connection, in particular to an internal self-locking rivet, a rivet composite connection device and a connection method, especially to an internal self-locking rivet, an internal self-locking rivet mechanical-solid phase composite connection device and an internal self-locking rivet Rivet Mechanical-Solid Phase Composite Joining Method. Background technique [0002] In the plate connection technology of metal materials, for the plate combination of the first layer plate (401) being steel and the second layer plate (402) being a thicker light alloy plate, self-piercing cannot be used because the lower layer light alloy plate is very thick. Riveting, flow drill riveting, etc. are suitable for mechanical connection methods of thin plates, and the superposition of steel plates on top of light alloys makes it impossible to apply solid-phase joining processes such as friction stir welding and friction u...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): F16B19/08F16B5/04
CPCF16B19/083F16B5/045B21J15/025B21J15/027
Inventor 李永兵山河马运五杨炳鑫
Owner SHANGHAI JIAO TONG UNIV
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