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Production process of locking clamping pieces of engine valve

An engine valve and production technology technology, which is applied to the production technology field of engine valve locking clips, can solve problems such as low work efficiency, and achieve the effects of small change in clip size, improved performance, and small gaps

Inactive Publication Date: 2019-03-26
陈韶华
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0003] In order to overcome the defects of low work efficiency described in the above-mentioned prior art, the present invention provides a stable production process for engine valve lock clips with guaranteed quality and quantity

Method used

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Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0010] The raw material aluminum alloy thermocouple is turned into a liquid, and is shaped into a blank in the shape of a locking clip through a centrifugal casting machine. After the surface is quenched at 420°, it is polished and polished by a polishing device until the surface precision is qualified and the product is packaged.

Embodiment 2

[0012] The raw material stainless steel thermocouple is turned into a liquid, and is shaped into a blank in the shape of a locking clip by a centrifugal casting machine. After quenching at 890°, use a polishing device to polish and polish until the surface precision is qualified and then pack the product.

Embodiment 3

[0014] The raw material copper alloy thermocouple is turned into a liquid, and is formed into a blank in the shape of a locking clip by a centrifugal casting machine, and the blank is put into a metal forming mold, and the blank is punched into a clip by a vertical punching machine, and then the clip After the surface is quenched at 860°, it is polished and polished by a polishing device until the surface accuracy is qualified and the product is packaged.

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PUM

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Abstract

The invention relates to a production process of locking clamping pieces of an engine valve. The production process of the locking clamping pieces of the engine valve comprises the steps that according to a production process of the locking clamping pieces, original turning and milling processes are changed into casting, stamping forming, re-turning, quenching and polishing processes, and castingand stamping processes are adopted to ensure the same blank size, uniform metal density and tight matching of the clamping pieces, so that the clearance is extremely small when the valve is closed, and the performance is obviously improved when the engine works.

Description

technical field [0001] The invention relates to a production process of an engine valve locking clip. Background technique [0002] The valve lock clip is an important part of the valve positioning of the automobile engine. The dimensional accuracy of the clip, the dimensional accuracy between the clips when they cooperate with each other, and the change in size when the clip works will affect the air intake of the valve intake system. Efficiency, which in turn affects the working efficiency of the engine combustion chamber. At present, the locking clips used in the domestic engine industry are all turned, with large roughness and large matching tolerances between the clips, resulting in unstable pressure in the engine combustion chamber and power performance that cannot reach the design value; if there is a stable, To achieve the working performance of the calibrated value, the quality and tolerance of the clip must be improved. Contents of the invention [0003] In ord...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): B23P15/00
CPCB23P15/00
Inventor 陈韶华
Owner 陈韶华