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Pressing and riveting positioning tool for head-free rivets and application method

A technology for riveting and tools, which is applied in the field of pressure riveting and riveting positioning tools for headless rivets, and can solve problems such as large size and poor matching

Active Publication Date: 2019-02-12
CAPITAL AEROSPACE MACHINERY +1
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

The manual riveting process of headed rivets is mature, but the matching with automatic drilling and riveting equipment is poor. When the diameter of the feeding rod is large, there will be interference between the feeding rod and the stringer ribs. The root cause is that the size of the rivet head is larger than that of the rivet. rod

Method used

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  • Pressing and riveting positioning tool for head-free rivets and application method
  • Pressing and riveting positioning tool for head-free rivets and application method
  • Pressing and riveting positioning tool for head-free rivets and application method

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0069] Such as figure 1 As shown, a pressure riveting positioning tool for headless rivets includes a base A1a, a spring A2a, a spring seat A3a and a retaining spring A4a.

[0070] A spring A2a is installed inside the base A1a, and the outer diameter of the spring A2a is smaller than the inner diameter of the base A1a. A spring seat A3a is installed on the inner wall of the upper part of the base A1a, and the spring seat A3a is positioned by a snap ring A4a. Both ends of the spring A2a are respectively limited by the bottom end of the base A1a and the spring seat A3a.

[0071] Such as image 3 As shown, the spring seats A3a of the same two positioning tools are placed opposite to each other when in use.

Embodiment 2

[0073] Such as figure 2 As shown, a pressure riveting positioning tool for headless rivets includes a base B1b, a spring B2b, a spring seat B3b and a retaining spring B4b.

[0074] A spring B2b is installed outside the base B1b, and the inner diameter of the spring B2b is larger than the outer diameter of the base B1b. A spring seat B3b is installed on the outer wall of the upper part of the base B1b, and the spring seat B3b is positioned by a snap spring B4b. Both ends of the spring B2b are respectively limited by the bottom end of the base B1b and the spring seat B3b.

[0075] Such as Figure 4 As shown, the spring seats B3b of the same two positioning tools are placed opposite to each other when in use.

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Abstract

The invention relates to the technical field of riveting and assembling, particularly discloses a pressing and riveting positioning tool for a head-free rivet and a using method of the pressing and riveting positioning tool. The positioning tool comprises a base. A spring base is installed on the upper portion of the base. The spring base is fixedly connected with the base through a clamp spring.Two ends of the spring are limited by the bottom end of the base and the spring base respectively. The method comprises the following steps 1) of calculating the outer extension quantities of the head-free rivet; 2) of selecting a matched gasket; 3) of fixing a riveting positioning tool; 4) of adding a head-free rivet; 5) of controlling the riveting positioning tool to be in place; and 6) of carrying out riveting. The pressing and riveting positioning tool is suitable for the pressing and riveting of the head-free rivets. The outer extension quantities of the two sides of the head-free rivet in the initial state and the riveting process can be consistent through the symmetrically-arranged riveting positioning tool, so that the diameter and height of the upsetting heads on the two sides areconsistent after the head-free rivet pressing riveting is completed.

Description

technical field [0001] The invention belongs to the technical field of riveting assembly, and in particular relates to a pressure riveting positioning tool for a headless rivet and a use method thereof. Background technique [0002] At present, mechanization and automation are the inevitable trend in the development of aerospace riveting assembly manufacturing technology. Automated riveting not only greatly improves production efficiency, reduces labor intensity of workers, but also ensures the consistency of product quality. The manual riveting process of headed rivets is mature, but the matching with automatic drilling and riveting equipment is poor. When the diameter of the feeding rod is large, there will be interference between the feeding rod and the stringer ribs. The root cause is that the size of the rivet head is larger than that of the rivet. pole. The emergence of headless rivets can solve this problem. A headless rivet is a solid round bar interference rivet wi...

Claims

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Application Information

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IPC IPC(8): B21J15/10B21J15/42
CPCB21J15/10B21J15/42
Inventor 吕九九孙立强臧建新朱建文马兴海侯东旭孟令博马丽翠章茂云马遥张伟檀甜甜安立辉
Owner CAPITAL AEROSPACE MACHINERY
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