CN106225677A - Automobile engine cylinder head combustion chamber volume measuring method - Google Patents
Automobile engine cylinder head combustion chamber volume measuring method Download PDFInfo
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- CN106225677A CN106225677A CN201610847212.2A CN201610847212A CN106225677A CN 106225677 A CN106225677 A CN 106225677A CN 201610847212 A CN201610847212 A CN 201610847212A CN 106225677 A CN106225677 A CN 106225677A
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- combustion chamber
- combustor
- engine cylinder
- cylinder head
- automobile engine
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- G—PHYSICS
- G01—MEASURING; TESTING
- G01B—MEASURING LENGTH, THICKNESS OR SIMILAR LINEAR DIMENSIONS; MEASURING ANGLES; MEASURING AREAS; MEASURING IRREGULARITIES OF SURFACES OR CONTOURS
- G01B11/00—Measuring arrangements characterised by the use of optical techniques
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- Physics & Mathematics (AREA)
- General Physics & Mathematics (AREA)
- Testing Of Engines (AREA)
- Cylinder Crankcases Of Internal Combustion Engines (AREA)
Abstract
It is desirable to provide a kind of automobile engine cylinder head combustion chamber volume measuring method, comprise the following steps: A, cleaning vehicle engine cylinder cover combustor, automobile engine cylinder head is inverted, the parts connected with combustor are installed, and with the gap between the indoor each parts of plasticine sealing combustion；B, at combustion chamber surface release agent spraying, above combustor, cylinder cap plane is provided with the dividing plate of four sides enclosing, injects forming agent to combustor；After to be formed dose of solidification, initial model is taken out；C, initial model is carried out three-dimensional scanning measurement, obtain the cloud data of initial model, in input 3-D graphic software；D, utilize 3-D graphic software that the cloud data of initial model is optimized process, build and obtain combustion chamber spatial model and carry out cubing, obtain automobile engine cylinder head combustion chamber volume.The defect that this measuring method overcomes prior art liquid easy to leak, error is big, has easily operation, a feature that precision is high.
Description
Technical field
The present invention relates to structural capacity fields of measurement, be specifically related to a kind of automobile engine cylinder head combustion chamber volume measurement side
Method.
Background technology
The combustor of engine cylinder cover be fuel wherein burn generate high-temperature fuel gas device, belong to the important of electromotor
Parts, comprise different pit.The volume size change of combustor, influences whether the change of compression ratio, and impact is sent out then
The performance of motivation.If cylinder head needs repairing, then after milling or grinding are repaired, combustion chamber volume will be made to reduce, pressure
Contracting ratio increases, thus affects the normal work of electromotor.Therefore the cylinder head after repairing must be carried out the survey of combustion chamber volume
Fixed.
Owing to combustion-chamber shape pit is irregular, at present, dropping liquid detection method is often taked in the numerical evaluation of combustion chamber volume,
By injecting certain liquid toward combustor, the full amount of combustion chamber volume is determined the approximation of combustor.Such measurement
Method comes with some shortcomings:
One is the seepage of liquid, and two is that measuring of liquid is inaccurate, all can cause measurement error, thus measure obtained be only
The approximation of combustor.
Summary of the invention
It is desirable to provide a kind of automobile engine cylinder head combustion chamber volume measuring method, this measuring method overcomes existing
Technology liquid easy to leak, the defect that error is big, have easily operation, a feature that precision is high.
Technical scheme is as follows:
A kind of automobile engine cylinder head combustion chamber volume measuring method, comprises the following steps:
A, cleaning vehicle engine cylinder cover combustor, be inverted automobile engine cylinder head, make combustor upward, will be with combustor phase
The parts connect install, and with the gap between the indoor each parts of plasticine sealing combustion；
B, at combustion chamber surface release agent spraying, above combustor, cylinder cap plane is provided with the dividing plate of four sides enclosing, to combustor
Inject forming agent；Being taken out by initial model after to be formed dose of solidification, this initial model includes combustion chamber spatial form part
The part formed after solidifying with the forming agent above combustor；
C, initial model is carried out three-dimensional scanning measurement, obtain the cloud data of initial model, in input 3-D graphic software；
D, utilize 3-D graphic software that the cloud data of initial model is optimized process, build and obtain combustion chamber space
Model, and combustion chamber spatial model is carried out cubing, obtain automobile engine cylinder head combustion chamber volume.
Preferably, the step of described cleaning vehicle engine cylinder cover combustor is specific as follows:
Combustor is carried out, removes carbon deposit, gum deposit and greasy dirt.
Preferably, the step installed by the parts connected with combustor is specific as follows:
Spark plug is screwed into the spark plug screw of cylinder cap, and tightens by regulation moment；By inlet valve group, exhaust valve group by regulation peace
It is contained on valve seating.
Preferably, in described step D build combustion chamber spatial model particularly as follows:
(1) cloud data of initial model is optimized process, according to combustion chamber spatial form, removes combustion chamber
Miscellaneous point beyond space segment；
(2) by cloud data curve construction；
(3) by curve construction curved surface；
(4) curved surface is stitched into solid threedimensional model, obtains combustion chamber spatial model.
Preferably, described forming agent is mixed to get with the ratio uniform of 1:10 with liquid-state silicon gel by LCM, its
Middle LCM may select the domestic DPI238 silica gel solid agent of method or the SH-of Shenzhen connection epoxy/organosilicon Materials Co., Ltd
727# silica gel solid agent.
Formed solid method is combined by the present invention with volume scan measurement, relative to injection process cubing, it is to avoid
Liquid possible during measuring changes the error caused, and substantially increases certainty of measurement, and formed solid method can be complete
Copy the shape in combustion chamber space, can accurately draw the appearance in combustion chamber space in conjunction with three-D volumes scanning survey
Amass size, and the threedimensional model formed can be used as the basis of Combustion chamber design.
Accompanying drawing explanation
The flow chart of the automobile engine cylinder head combustion chamber volume measuring method that Fig. 1 provides for the present invention
The schematic diagram of forming agent is injected during the automobile engine cylinder head combustion chamber volume measuring method that Fig. 2 provides for the present invention
The schematic diagram of 3-D scanning during the automobile engine cylinder head combustion chamber volume measuring method that Fig. 3 provides for the present invention
In figure, each several part title and sequence number are as follows:
1 be dividing plate, 2 be combustor, 3 be cylinder cap plane, 4 be form agent, 5 be three-dimensional scanning measurement machine, 6 for introductory die
Type, 7 it is measuring table.
Detailed description of the invention
The present invention is illustrated below in conjunction with the accompanying drawings with embodiment.
Embodiment 1
The automobile engine cylinder head combustion chamber volume measuring method that the present embodiment provides, comprises the following steps:
A, cleaning vehicle engine cylinder cover combustor, be inverted automobile engine cylinder head, make combustor upward, will be with combustor phase
The parts connect install, and with the gap between the indoor each parts of plasticine sealing combustion；
The step of described cleaning vehicle engine cylinder cover combustor is specific as follows:
Combustor is carried out, removes carbon deposit, gum deposit and greasy dirt；
The step installed by the parts connected with combustor is specific as follows:
Spark plug is screwed into the spark plug screw of cylinder cap, and tightens by regulation moment；By inlet valve group, exhaust valve group by regulation peace
It is contained on valve seating；
B, at combustion chamber surface release agent spraying, above combustor, cylinder cap plane is provided with the dividing plate of four sides enclosing, to combustor
Inject forming agent；Being taken out by initial model after to be formed dose of solidification, this initial model includes combustion chamber spatial form part
The part formed after forming agent solidification above the combustor of sum；Described forming agent by LCM and liquid-state silicon gel with 1:
The ratio uniform of 10 is mixed to get；LCM uses the SH-727# silica gel solid of Shenzhen connection epoxy/organosilicon Materials Co., Ltd
Agent；
C, initial model is carried out three-dimensional scanning measurement, obtain the cloud data of initial model, in input 3-D graphic software；
D, utilize 3-D graphic software that the cloud data of initial model is optimized process, build and obtain combustion chamber space
Model, and combustion chamber spatial model is carried out cubing, obtain automobile engine cylinder head combustion chamber volume；
Building combustion chamber spatial model uses UG software to process, and step is as follows:
(1) cloud data of initial model is optimized process, according to combustion chamber spatial form, removes combustion chamber
Miscellaneous point beyond space segment；
(2) by cloud data curve construction；
(3) by curve construction curved surface；
(4) curved surface is stitched into solid threedimensional model, obtains combustion chamber spatial model；
Again by UG software, combustion chamber spatial model is carried out cubing.
Claims (5)
1. an automobile engine cylinder head combustion chamber volume measuring method, it is characterised in that comprise the following steps:
A, cleaning vehicle engine cylinder cover combustor, be inverted automobile engine cylinder head, make combustor upward, will be with combustor phase
The parts connect install, and with the gap between the indoor each parts of plasticine sealing combustion；
B, combustion chamber surface release agent spraying, inverted automobile engine cylinder head upper surface being provided around around combustor
One circle dividing plate, injects the forming agent of excess so that after forming agent fills combustor, liquid level continues the height that rises, and at least covers to combustor
Cover the part to dividing plate；Being taken out by initial model after to be formed dose of solidification, this initial model includes combustion chamber space shape
The extra section formed after forming agent solidification above shape part and combustor；
C, initial model is carried out three-dimensional scanning measurement, obtain the cloud data of initial model, in input 3-D graphic software；
D, utilize 3-D graphic software that the cloud data of initial model is optimized process, build and obtain combustion chamber space
Model, then carries out cubing by 3-D graphic software to combustion chamber spatial model, obtains automobile engine cylinder head
Combustion chamber volume.
2. automobile engine cylinder head combustion chamber volume measuring method as claimed in claim 1, it is characterised in that:
The step of the cleaning vehicle engine cylinder cover combustor described in described step A is specific as follows:
Combustor is carried out, removes carbon deposit, gum deposit and greasy dirt, make the combustor after cleaning present metal primary colors.
3. automobile engine cylinder head combustion chamber volume measuring method as claimed in claim 1, it is characterised in that:
The step installed by the parts connected with combustor in described step A is specific as follows:
Spark plug is screwed into the spark plug screw of cylinder cap, and tightens by regulation moment；By inlet valve group, exhaust valve group by regulation peace
It is contained on valve seating.
4. automobile engine cylinder head combustion chamber volume measuring method as claimed in claim 1, it is characterised in that:
In described step D build combustion chamber spatial model particularly as follows:
(1) cloud data of initial model is optimized process, according to combustion chamber spatial form, removes combustion chamber
Miscellaneous point beyond space segment；
(2) by cloud data curve construction；
(3) by curve construction curved surface；
(4) curved surface is stitched into solid threedimensional model, obtains combustion chamber spatial model.
5. automobile engine cylinder head combustion chamber volume measuring method as claimed in claim 1, it is characterised in that:
Described forming agent is mixed to get with the ratio uniform of 1:10 with liquid-state silicon gel by LCM.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
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| CN201610847212.2A CN106225677A (en) | 2016-09-26 | 2016-09-26 | Automobile engine cylinder head combustion chamber volume measuring method |
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| CN201610847212.2A CN106225677A (en) | 2016-09-26 | 2016-09-26 | Automobile engine cylinder head combustion chamber volume measuring method |
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| CN106225677A true CN106225677A (en) | 2016-12-14 |
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| CN201610847212.2A Pending CN106225677A (en) | 2016-09-26 | 2016-09-26 | Automobile engine cylinder head combustion chamber volume measuring method |
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Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107246968A (en) * | 2017-07-21 | 2017-10-13 | 上汽通用五菱汽车股份有限公司 | The combustion chamber measuring apparatus and cylinder cap production line |
| CN110243264A (en) * | 2019-05-16 | 2019-09-17 | 浙江省海洋水产研究所 | A kind of device and method that the fresh fishes shape on ship is fixed |
| CN110657756A (en) * | 2019-09-03 | 2020-01-07 | 厦门金鹭特种合金有限公司 | Accurate measurement method for concave structure of blade/cutter |
| CN111174679A (en) * | 2020-03-18 | 2020-05-19 | 广东稳固检测鉴定有限公司 | Assembled concrete roughness detection method |
| CN111666728A (en) * | 2020-07-01 | 2020-09-15 | 上海工具厂有限公司 | CFD-based optimization method for cleaning of automobile engine cylinder cover |
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2016
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Cited By (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107246968A (en) * | 2017-07-21 | 2017-10-13 | 上汽通用五菱汽车股份有限公司 | The combustion chamber measuring apparatus and cylinder cap production line |
| CN107246968B (en) * | 2017-07-21 | 2019-10-18 | 上汽通用五菱汽车股份有限公司 | The combustion chamber measuring device and cylinder cap production line |
| CN110243264A (en) * | 2019-05-16 | 2019-09-17 | 浙江省海洋水产研究所 | A kind of device and method that the fresh fishes shape on ship is fixed |
| CN110243264B (en) * | 2019-05-16 | 2020-10-20 | 浙江省海洋水产研究所 | Device and method for fixing shapes of fresh fishes on ship |
| CN110657756A (en) * | 2019-09-03 | 2020-01-07 | 厦门金鹭特种合金有限公司 | Accurate measurement method for concave structure of blade/cutter |
| CN111174679A (en) * | 2020-03-18 | 2020-05-19 | 广东稳固检测鉴定有限公司 | Assembled concrete roughness detection method |
| CN111174679B (en) * | 2020-03-18 | 2022-05-13 | 广东稳固检测鉴定有限公司 | Assembled concrete roughness detection method |
| CN111666728A (en) * | 2020-07-01 | 2020-09-15 | 上海工具厂有限公司 | CFD-based optimization method for cleaning of automobile engine cylinder cover |
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