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Machining and Control Method of Engine Cylinder Head Combustion Chamber Volume Based on Optics and Feedback

An engine cylinder and feedback mechanism technology, applied in the direction of using optical devices, metal processing equipment, manufacturing tools, etc., can solve problems such as the inability to guarantee the volume of the engine combustion chamber, and achieve the goal of reducing the processing scrap rate, reducing production costs, and improving the yield rate. Effect

Active Publication Date: 2021-08-03
DONGFENG MOTOR CORP HUBEI
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  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

For the cylinder head of the engine with large cavity cavity error, the traditional processing is carried out according to the distance determined from the top surface, which cannot guarantee the volume of the engine combustion chamber

Method used

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  • Machining and Control Method of Engine Cylinder Head Combustion Chamber Volume Based on Optics and Feedback
  • Machining and Control Method of Engine Cylinder Head Combustion Chamber Volume Based on Optics and Feedback
  • Machining and Control Method of Engine Cylinder Head Combustion Chamber Volume Based on Optics and Feedback

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Embodiment Construction

[0034] In order to make the object, technical solution and advantages of the present invention clearer, the present invention will be further described in detail below in conjunction with the accompanying drawings and embodiments. It should be understood that the specific embodiments described here are only used to explain the present invention, not to limit the present invention. In addition, the technical features involved in the various embodiments of the present invention described below can be combined with each other as long as they do not constitute a conflict with each other.

[0035] The invention realizes the functions of accurately measuring the volume of the combustion chamber of the cylinder head to be finished and implementing differentiated processing for the engine cylinder heads of different combustion chamber cavities through the optical measuring instrument and the equipment communication feedback method. Such as figure 1 Shown is a schematic flow chart of ...

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Abstract

The invention discloses an engine cylinder head combustion chamber volume processing control method based on optical measurement and feedback mechanism, which performs optical scanning on the combustion chamber of the engine cylinder head on the joint surface of the cylinder block to be finished, and generates a three-dimensional data model; in the data model Use a virtual plane to block the valve seat surface, fuel injector hole, spark plug hole in the combustion chamber, form a closed space with the cylinder block joint surface of the engine cylinder head, and calculate the volume of the closed space; calculate the virtual plugging plane and the actual The volume difference of valves, fuel injectors, and spark plugs is used as a compensation value for the volume of the closed space to obtain the volume of the combustion chamber; calculate the difference between the volume of the combustion chamber and the target value of the volume of the combustion chamber, and calculate the cylinder head of the engine according to the difference. The body joint surface requires a finishing allowance, which is input into the macro variables of the machining equipment. The invention can accurately measure the volume of the combustion chamber of the cylinder head to be finished, and accurately control the volume of the combustion chamber of the cylinder head of the engine.

Description

technical field [0001] The invention belongs to the field of engine mechanical processing, and more specifically relates to a method for processing and controlling the volume of an engine cylinder head combustion chamber based on an optical measurement and feedback mechanism. Background technique [0002] With the vigorous development of the automobile industry, laws and regulations are becoming more and more strict on engine emissions, and the engine compression ratio is getting larger and larger, which requires precise control of the combustion chamber volume of the engine. The manufacture of engine cylinder heads involves a composite process of casting and machining, and the process is complex. The volume of the combustion chamber is affected by many process links, which is a difficult point in quality control in the engine manufacturing process. [0003] There are two key points in controlling the volume of the combustion chamber. The first key point is the volume cavit...

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): B23C3/00B23C9/00G01B11/00
CPCB23C3/00B23C9/00G01B11/00
Inventor 吕小磊熊强强于美润
Owner DONGFENG MOTOR CORP HUBEI
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