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Oil tube sealing cap swelling riveting pressing device

A technology of press-fitting device and sealing cap, which is applied in the field of oil pipe sealing cap riveting press-fitting device, can solve the problems that cannot be completely guaranteed not to fall off, and achieve the effect of not being easy to make mistakes, preventing falling off, and accurate product size

Pending Publication Date: 2018-07-24
SHANGHAI ZHONGYUAN FUEL RAIL MFG
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

However, this device only realizes interference press-fit riveting, and the sealing cap has not undergone internal expansion, so it cannot be completely guaranteed not to fall off

Method used

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  • Oil tube sealing cap swelling riveting pressing device
  • Oil tube sealing cap swelling riveting pressing device

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0021] like figure 1 , a kind of riveting and pressing device for oil pipe sealing cap, including a riveting cylinder assembly and an expansion cylinder assembly arranged side by side, the riveting cylinder assembly and the expansion cylinder assembly are connected by a cylinder bracket 7 arranged at their lower parts, the riveting cylinder assembly includes a pressure riveting cylinder assembly The riveting cylinder 2 and the linear guide rail 5 located at the bottom of the riveting cylinder 2, the output shaft of the riveting cylinder 2 is connected to the cylinder bracket 7, the expansion cylinder assembly includes an expansion cylinder 1 and a connecting bracket 10, and the stretching cylinder assembly is connected to the connecting bracket 10 and The cylinder bracket 7 is connected. The cylinder support 7 is provided with a press-fitting die 8, the press-fitting die 8 is provided with a riveting mandrel 6, and the riveting mandrel 6 is provided with an expansion mandrel 4...

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Abstract

The invention relates to an oil tube sealing cap swelling riveting pressing device which comprises a riveting cylinder component and an expansion cylinder component, wherein the riveting cylinder component and the expansion cylinder component are arranged in parallel; the riveting cylinder component and the expansion cylinder component are connected through a cylinder bracket below the two components; a pressing mold is arranged on the cylinder bracket; the pressing mold is internally provided with a riveting mandrel; the riveting mandrel is internally provided with an expansion mandrel whichis capable of expanding the riveting mandrel; the upper end of the expansion mandrel is connected with the output shaft of the expansion cylinder component. Compared with the prior art, the device iscapable of pressing and assembling a sealing cap through two groups of cylinder components, the pressing mold is firstly pushed by a riveting cylinder to cling the sealing cap to an oil tube, the riveting mandrel is also pushed to rivet the sealing cap, further riveting can be carried out through the expansion cylinder, then the oil tube sealing cap can be pressed and assembled at two steps, the mounting quality can be ensured, and errors can be avoided; on the basis of pressing riveting, a function that a sealing surface is expanded outwards is added, and the oil tube sealing cap mounting pass percent can be greatly increased.

Description

technical field [0001] The invention relates to a riveting device, in particular to a riveting and pressing device for sealing caps of oil pipes. Background technique [0002] The high-pressure fuel distribution pipe is a metal part fixed on the intake manifold of the engine. It is used to distribute high-pressure fuel. The head of the high-pressure fuel pipe joint needs to be connected with a sealing cap to prevent potential safety hazards caused by fuel leakage. The sealing cap and joint are taken by tooling. Interference fit to achieve good sealing performance. At present, the press-fitting of the sealing cap of the high-pressure oil pipe adopts the method of interference press-fitting and riveting. This press-fitting method affects the size of the product, and it is easy to cause the sealing cap to fall off, resulting in a low pass rate for mass production. When the end face of the sealing cap is pressed, the sealing cap often falls off during the return process of the ...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): B21D39/20B21D39/00
CPCB21D39/00B21D39/20
Inventor 宋晓伟
Owner SHANGHAI ZHONGYUAN FUEL RAIL MFG
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