CN108127348A - A kind of manufacturing process of the sealed cylinder head of engine - Google Patents
A kind of manufacturing process of the sealed cylinder head of engine Download PDFInfo
- Publication number
- CN108127348A CN108127348A CN201711455379.5A CN201711455379A CN108127348A CN 108127348 A CN108127348 A CN 108127348A CN 201711455379 A CN201711455379 A CN 201711455379A CN 108127348 A CN108127348 A CN 108127348A
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- China
- Prior art keywords
- cylinder head
- processing
- cylinder
- processed
- blank
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Classifications
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B23—MACHINE TOOLS; METAL-WORKING NOT OTHERWISE PROVIDED FOR
- B23P—METAL-WORKING NOT OTHERWISE PROVIDED FOR; COMBINED OPERATIONS; UNIVERSAL MACHINE TOOLS
- B23P15/00—Making specific metal objects by operations not covered by a single other subclass or a group in this subclass
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F02—COMBUSTION ENGINES; HOT-GAS OR COMBUSTION-PRODUCT ENGINE PLANTS
- F02F—CYLINDERS, PISTONS OR CASINGS, FOR COMBUSTION ENGINES; ARRANGEMENTS OF SEALINGS IN COMBUSTION ENGINES
- F02F1/00—Cylinders; Cylinder heads
- F02F1/24—Cylinder heads
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- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Cylinder Crankcases Of Internal Combustion Engines (AREA)
Abstract
The invention discloses a kind of engine manufacturing process of sealed cylinder head, include the following steps, the processing of S1 blanks, the processing of S2 surfaces, S3 hole machineds, S4 deburrings, the cleaning of S5 impurity, S6 detection blankings.The present invention by adjusting production process, simplifies production stage, can not only reduce number of devices, reduce production cost compared with manufacturing process of the conventional engine with sealed cylinder head；Influence of the external factor to workpiece can also be reduced, so as to improve yield rate during work pieces process.
Description
Technical field
The invention belongs to auto parts machinery manufacture field, more specifically more particularly to a kind of sealed cylinder of engine
The manufacturing process of lid.
Background technology
Cylinder cap is one of critical component of automobile engine, is located at upper position of engine, by bolt, cylinder pad and cylinder block
It is securely fit.Cylinder cap is used for closed cylinder and builds the combustion chamber of engine, while as the valve actuating mechanism and correlation of engine
The assembling matrix of component.Cylinder cap processing technology is sufficiently complex, and has very high requirement on machining accuracy, and processing quality quality is directly
Affect the performance of engine efficiency.Air cylinder head structure is complicated, and main feature has at 2 points：First, car engine cylinder cap is usual
It is stephanoporate thin wall part, the hole wall thinnest part only 3.5mm or so, hole wall processing quantity is up to 100 for hexahedron.Second, cylinder cap
Strength and stiffness are more demanding, only up to standard just to ensure gas stable operation under the collective effect of thermal stress and pressure.It passes
The cylinder head processing technology of system is complicated, not only affects the production cost of cylinder head, has an effect on its quality of production.
Invention content
The purpose of the present invention is to provide a kind of engine manufacturing process of sealed cylinder head, to solve above-mentioned background
The problem of being proposed in technology.
To achieve the above object, the present invention provides following technical solution：
A kind of engine manufacturing process of sealed cylinder head, includes the following steps：
S1, blank processing：Raw materials for production of the aluminium alloy as cylinder head are selected, aluminium alloy is processed by cylinder using casting
Lid blank, casting roughness requirements are higher in casting one down, in order to avoid generating stomata and sand holes, need after the completion of production
Blank is checked, removal with crackle, cold shut, surface porosity, stomata, sand holes defective work, and cylinder head blank
Surface roughness must not exceed 12Ra；
S2, surface processing：Since the hardness of aluminium alloy is relatively low, it is easily deformed in processing, so when being processed to blank
The principle of first face metapore is followed, origin reference location is carried out to blank first, significant surfaces are as benchmark using on cylinder body, then to cylinder cap
Top surface, bottom surface and inlet and outlet face be processed；
S3, hole machined：Since the holes such as valve seat insert, guide hole, the tappet bore in cylinder head have matching relationship, so it is processed
It is sequentially particularly significant, valve seat insert and valve guide bushing are processed first, ensure valve guide bushing and valve adding man-hour requirement
Then the concentricity of valve seat is processed cylinder cap tappet bore and valve guide bushing bottom outlet, finally cylinder cap camshaft hole is added
Work；
S4, deburring：Since the material that cylinder head uses is mainly aluminium alloy, excessive burr will not be generated, for cylinder
The burr of cap surface can be removed with nylon bruss, and the burr in deep hole in cylinder head can be removed by high pressure water；
S5, impurity cleaning：It puts the workpiece in the sink with turbulent flow and is cleaned first, need to overturn during cleaning
Then workpiece is cleared up the hole of workpiece by high pressure nozzle, to remove remaining clast in hole；
S6, detection blanking：The leakproofness of cylinder head is the important indicator of entire automobile engine, passes through leak test after machining
Machine is detected workpiece, then carries out visual detection, finished product blanking can be carried out after detection is errorless.
Preferably, the influence that is easily stressed when cylinder head is processed and deform, therefore its roughing and finishing
It needs to disperse, to ensure the release of machining stress.
Preferably, processing when due to process it is more, workpiece easily collides with, thus processing when can there are allowance,
Then it is finished in production line tail portion.
Preferably, it needs to set Contact Pointer Type Tool on process equipment in process, in order to avoid because of tool damage
And cause unnecessary loss.
Compared with prior art, the beneficial effects of the invention are as follows：The present invention and the conventional sealed cylinder head of engine
Manufacturing process compare, by adjusting production process, simplify production stage, can not only reduce number of devices, reduction is produced into
This；Influence of the external factor to workpiece can also be reduced, so as to improve yield rate during work pieces process.
Specific embodiment
In order to make the purpose , technical scheme and advantage of the present invention be clearer, below in conjunction with specific embodiment, to this
Invention is further elaborated.It should be appreciated that the specific embodiments described herein are merely illustrative of the present invention, not
For limiting the present invention.
A kind of engine manufacturing process of sealed cylinder head, includes the following steps：
S1, blank processing：Raw materials for production of the aluminium alloy as cylinder head are selected, aluminium alloy is processed by cylinder using casting
Lid blank, casting roughness requirements are higher in casting one down, in order to avoid generating stomata and sand holes, need after the completion of production
Blank is checked, removal with crackle, cold shut, surface porosity, stomata, sand holes defective work, and cylinder head blank
Surface roughness must not exceed 12Ra；
S2, surface processing：Since the hardness of aluminium alloy is relatively low, it is easily deformed in processing, so when being processed to blank
The principle of first face metapore is followed, origin reference location is carried out to blank first, significant surfaces are as benchmark using on cylinder body, then to cylinder cap
Top surface, bottom surface and inlet and outlet face be processed；
S3, hole machined：Since the holes such as valve seat insert, guide hole, the tappet bore in cylinder head have matching relationship, so it is processed
It is sequentially particularly significant, valve seat insert and valve guide bushing are processed first, ensure valve guide bushing and valve adding man-hour requirement
Then the concentricity of valve seat is processed cylinder cap tappet bore and valve guide bushing bottom outlet, finally cylinder cap camshaft hole is added
Work；
S4, deburring：Since the material that cylinder head uses is mainly aluminium alloy, excessive burr will not be generated, for cylinder
The burr of cap surface can be removed with nylon bruss, and the burr in deep hole in cylinder head can be removed by high pressure water；
S5, impurity cleaning：It puts the workpiece in the sink with turbulent flow and is cleaned first, need to overturn during cleaning
Then workpiece is cleared up the hole of workpiece by high pressure nozzle, to remove remaining clast in hole；
S6, detection blanking：The leakproofness of cylinder head is the important indicator of entire automobile engine, passes through leak test after machining
Machine is detected workpiece, then carries out visual detection, finished product blanking can be carried out after detection is errorless.
Specifically, when cylinder head is processed the influence that is easily stressed and deform, therefore its roughing and finishing
It needs to disperse, to ensure the release of machining stress.
Specifically, processing when due to process it is more, workpiece easily collides with, thus processing when can there are allowance,
Then it is finished in production line tail portion.
Specifically, need to set Contact Pointer Type Tool on process equipment in process, in order to avoid because of tool damage
And cause unnecessary loss.
The present invention is compared with manufacturing process of the conventional engine with sealed cylinder head, by adjusting production process, letter
Change production stage, can not only reduce number of devices, reduce production cost；Influence of the external factor to workpiece can also be reduced,
So as to improve yield rate during work pieces process.
The foregoing is only a preferred embodiment of the present invention, but protection scope of the present invention be not limited thereto,
Any one skilled in the art in the technical scope disclosed by the present invention, according to the technique and scheme of the present invention and its
Inventive concept is subject to equivalent substitution or change, should be covered by the protection scope of the present invention.
Claims (4)
1. a kind of engine manufacturing process of sealed cylinder head, which is characterized in that include the following steps：
S1, blank processing：Raw materials for production of the aluminium alloy as cylinder head are selected, aluminium alloy is processed by cylinder using casting
Lid blank, casting roughness requirements are higher in casting one down, in order to avoid generating stomata and sand holes, need after the completion of production
Blank is checked, removal with crackle, cold shut, surface porosity, stomata, sand holes defective work, and cylinder head blank
Surface roughness must not exceed 12Ra；
S2, surface processing：Since the hardness of aluminium alloy is relatively low, it is easily deformed in processing, so when being processed to blank
The principle of first face metapore is followed, origin reference location is carried out to blank first, significant surfaces are as benchmark using on cylinder body, then to cylinder cap
Top surface, bottom surface and inlet and outlet face be processed；
S3, hole machined：Since the holes such as valve seat insert, guide hole, the tappet bore in cylinder head have matching relationship, so it is processed
It is sequentially particularly significant, valve seat insert and valve guide bushing are processed first, ensure valve guide bushing and valve adding man-hour requirement
Then the concentricity of valve seat is processed cylinder cap tappet bore and valve guide bushing bottom outlet, finally cylinder cap camshaft hole is added
Work；
S4, deburring：Since the material that cylinder head uses is mainly aluminium alloy, excessive burr will not be generated, for cylinder
The burr of cap surface can be removed with nylon bruss, and the burr in deep hole in cylinder head can be removed by high pressure water；
S5, impurity cleaning：It puts the workpiece in the sink with turbulent flow and is cleaned first, need to overturn during cleaning
Then workpiece is cleared up the hole of workpiece by high pressure nozzle, to remove remaining clast in hole；
S6, detection blanking：The leakproofness of cylinder head is the important indicator of entire automobile engine, passes through leak test after machining
Machine is detected workpiece, then carries out visual detection, finished product blanking can be carried out after detection is errorless.
2. a kind of manufacturing process of the sealed cylinder head of engine according to claim 1, it is characterised in that：Cylinder head
The influence that is easily stressed during processing and deform, therefore its roughing and finishing need to disperse, to ensure that processing should
The release of power.
3. a kind of manufacturing process of the sealed cylinder head of engine according to claim 1, it is characterised in that：It is processing
When due to process it is more, workpiece easily collides with, so then can carry out essence in production line tail portion there are allowance in processing
Processing.
4. a kind of manufacturing process of the sealed cylinder head of engine according to claim 1, it is characterised in that：It is processing
It needs to set Contact Pointer Type Tool on process equipment in the process, in order to avoid unnecessary loss is caused due to tool damage.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201711455379.5A CN108127348A (en) | 2017-12-28 | 2017-12-28 | A kind of manufacturing process of the sealed cylinder head of engine |
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| Application Number | Priority Date | Filing Date | Title |
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| CN201711455379.5A CN108127348A (en) | 2017-12-28 | 2017-12-28 | A kind of manufacturing process of the sealed cylinder head of engine |
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| CN108127348A true CN108127348A (en) | 2018-06-08 |
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| CN201711455379.5A Pending CN108127348A (en) | 2017-12-28 | 2017-12-28 | A kind of manufacturing process of the sealed cylinder head of engine |
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Cited By (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108952990A (en) * | 2018-06-27 | 2018-12-07 | 山西中条山机电设备有限公司 | A kind of high-strength alloy cast-iron head and its production technology |
| CN109604687A (en) * | 2018-12-26 | 2019-04-12 | 芜湖科翔动力机械有限公司 | A kind of engine cylinder cap OCV valve opening processing technology |
| CN111456864A (en) * | 2019-01-22 | 2020-07-28 | 长城汽车股份有限公司 | A cylinder head subassembly and vehicle for vehicle |
| CN112404899A (en) * | 2020-11-09 | 2021-02-26 | 富顺安建汽车零部件(东莞)有限公司 | Machining process of automobile engine oil injector seat |
| CN112589395A (en) * | 2020-12-15 | 2021-04-02 | 芜湖永裕汽车工业股份有限公司 | Engine cylinder cover machining process |
| CN113075295A (en) * | 2021-03-26 | 2021-07-06 | 上海易流机电设备有限公司 | Detection device and processing method for electromechanical equipment shell |
Citations (5)
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|---|---|---|---|---|
| EP0773350A1 (en) * | 1995-09-14 | 1997-05-14 | Yamaha Hatsudoki Kabushiki Kaisha | Method for producing a cylinder head unit of an internal combustion engine |
| CN106695248A (en) * | 2015-08-03 | 2017-05-24 | 昆山肯达机械有限公司 | Method for manufacturing cylinder head of diesel engine |
| CN107378381A (en) * | 2016-05-17 | 2017-11-24 | 上柴动力海安有限公司 | A kind of cylinder head valve retainer and valve guide hole processing technology |
| CN107443082A (en) * | 2017-09-06 | 2017-12-08 | 陕西柴油机重工有限公司 | Diesel engine cylinder lid for ship automatic processing system and technique based on mixes line production pattern |
| CN107443029A (en) * | 2017-09-25 | 2017-12-08 | 芜湖永裕汽车工业股份有限公司 | The processing technology of engine cylinder cap |
-
2017
- 2017-12-28 CN CN201711455379.5A patent/CN108127348A/en active Pending
Patent Citations (5)
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| EP0773350A1 (en) * | 1995-09-14 | 1997-05-14 | Yamaha Hatsudoki Kabushiki Kaisha | Method for producing a cylinder head unit of an internal combustion engine |
| CN106695248A (en) * | 2015-08-03 | 2017-05-24 | 昆山肯达机械有限公司 | Method for manufacturing cylinder head of diesel engine |
| CN107378381A (en) * | 2016-05-17 | 2017-11-24 | 上柴动力海安有限公司 | A kind of cylinder head valve retainer and valve guide hole processing technology |
| CN107443082A (en) * | 2017-09-06 | 2017-12-08 | 陕西柴油机重工有限公司 | Diesel engine cylinder lid for ship automatic processing system and technique based on mixes line production pattern |
| CN107443029A (en) * | 2017-09-25 | 2017-12-08 | 芜湖永裕汽车工业股份有限公司 | The processing technology of engine cylinder cap |
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| 丁柏群等: "《汽车制造工艺及装备》", 31 August 2014, 中国林业出版社 * |
Cited By (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108952990A (en) * | 2018-06-27 | 2018-12-07 | 山西中条山机电设备有限公司 | A kind of high-strength alloy cast-iron head and its production technology |
| CN109604687A (en) * | 2018-12-26 | 2019-04-12 | 芜湖科翔动力机械有限公司 | A kind of engine cylinder cap OCV valve opening processing technology |
| CN111456864A (en) * | 2019-01-22 | 2020-07-28 | 长城汽车股份有限公司 | A cylinder head subassembly and vehicle for vehicle |
| CN111456864B (en) * | 2019-01-22 | 2022-09-09 | 长城汽车股份有限公司 | A cylinder head subassembly and vehicle for vehicle |
| CN112404899A (en) * | 2020-11-09 | 2021-02-26 | 富顺安建汽车零部件(东莞)有限公司 | Machining process of automobile engine oil injector seat |
| CN112589395A (en) * | 2020-12-15 | 2021-04-02 | 芜湖永裕汽车工业股份有限公司 | Engine cylinder cover machining process |
| CN113075295A (en) * | 2021-03-26 | 2021-07-06 | 上海易流机电设备有限公司 | Detection device and processing method for electromechanical equipment shell |
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Application publication date: 20180608 |