CN105710609A - Machining process for camshaft of small gasoline engine - Google Patents
Machining process for camshaft of small gasoline engine Download PDFInfo
- Publication number
- CN105710609A CN105710609A CN201610139243.2A CN201610139243A CN105710609A CN 105710609 A CN105710609 A CN 105710609A CN 201610139243 A CN201610139243 A CN 201610139243A CN 105710609 A CN105710609 A CN 105710609A
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- finished product
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- cam
- camshaft
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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
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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
- B23P2700/00—Indexing scheme relating to the articles being treated, e.g. manufactured, repaired, assembled, connected or other operations covered in the subgroups
- B23P2700/02—Camshafts
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- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Grinding And Polishing Of Tertiary Curved Surfaces And Surfaces With Complex Shapes (AREA)
- Valve-Gear Or Valve Arrangements (AREA)
Abstract
The invention relates to the technical field of a machining process for gasoline engine parts, in particular to a machining process for a camshaft of a small gasoline engine. The machining process comprises the following steps: S1, cutting: cutting raw materials, such as nodular cast iron, cast alloy iron and chilled cast iron, by each blank finished product; S2, end face milling and centering: performing end face milling treatment and centering on a blank by adopting a numerical control lathe; S3, main journal rough turning: performing main journal rough turning treatment on the blank by adopting the numerical control lathe; and S4, cam journal rough machining: performing rough machining treatment on a cam journal by adopting an exterior milling lathe. According to the machining process disclosed by the invention, the camshaft is machined by adopting various machining equipment, such as the numerical control lathe, and therefore the camshaft is high in flexibility, wear-resisting property, integral rigidity and machining precision, and meets the need of production and machining, and moreover, the machining process for the camshaft of the small gasoline engine is simple, easy and simple to operate, relatively low in production cost, effectively increased in production efficiency, and high in universality.
Description
Technical field
The present invention relates to gasoline engine accessory technology field, be specifically related to the processing technique of a kind of miniature gasoline engine camshaft.
Background technology
Camshaft is the vitals in electromotor in valve actuating mechanism, in engine operational cycle, it reasonably controls the unlatching of inlet and exhaust valve, shut-in time and folding amount, the fuel mixture body through overcompression is made fully to burn, promotion piston movement does work, then waste gas being discharged combustor, therefore it affects the dynamic property of electromotor, economy and discharge.
Owing to camshaft belongs to thin and long shafts part, poor rigidity, yielding, to accurately control inlet and exhaust valve time opening and the closedown of electromotor, cam should have significantly high contour accuracy, phase angle requires and good anti-wear performance and integral rigidity.Therefore, the processing mode of its axle journal and cam becomes the emphasis of whole camshaft processing technique.
In prior art mostly relatively complicated for the processing technique of camshaft, complicated, and its versatility is poor, use cost, production cost is higher, it is impossible to meet the demand of production and processing.
Summary of the invention
It is an object of the invention to provide one and can effectively solve the problem that problems of the prior art, processing technique is simple, and easy and simple to handle, production cost is relatively low, and its finished product has the processing technique of miniature gasoline engine camshaft of good anti-wear performance and integral rigidity.
In order to solve the problem existing for background technology, the present invention is by the following technical solutions: the processing technique of a kind of miniature gasoline engine camshaft, including following operating procedure:
The first step, blanking, select the raw materials such as spheroidal graphite cast-iron, alloy cast iron, chilled cast iron to carry out blanking by every blank finished product；
Second step, end face milling centering, adopt numerically controlled lathe that blank is carried out end face milling process, centering；
3rd step, rough turn trunnion, adopt numerically controlled lathe that blank carries out rough turn trunnion process；
4th step, cam journal roughing, adopt outer mill-turn that cam journal is carried out roughing process；
5th step, heat treatment, adopt Equipment for Heating Processing that above-mentioned semi-finished product are carried out heat treatment；
6th step, alignment, adopt straightening equipment that above-mentioned semi-finished product are carried out alignment；
7th step, roughly grinds axle journal, cam, adopts cylindrical grinder that axle journal, cam are carried out coarse grinding treatment；
8th step, refines axle journal, cam, adopts cylindrical grinder that axle journal, cam are carried out fine grinding process；
9th step, polishing, above-mentioned semi-finished product are processed by shot blasting；
Tenth step, cleans, above-mentioned semi-finished product is carried out surface clean；
11st step, lower ray examination, finished product is carried out lower ray examination, its qualified finished product carries out packaging warehouse-in.
The method have the advantages that the processing technique of a kind of miniature gasoline engine camshaft of the present invention, the step such as including blanking, end face milling centering, rough turn trunnion, cam journal roughing, heat treatment, alignment, corase grind axle journal, cam, fine grinding axle journal, cam, polishing, cleaning, lower ray examination, camshaft is processed processing by the present invention by adopting the various processing equipment such as numerically controlled lathe, thus having good flexibility, anti-wear performance and integral rigidity, and machining accuracy is high, meet the demand of production and processing.It addition, the processing technique of this miniature gasoline engine camshaft is simple, easy and simple to handle, production cost is relatively low, is effectively increased production efficiency, and versatility is good.
Detailed description of the invention
This detailed description of the invention is by the following technical solutions: the processing technique of a kind of miniature gasoline engine camshaft, including following operating procedure:
The first step, blanking, select the raw materials such as spheroidal graphite cast-iron, alloy cast iron, chilled cast iron to carry out blanking by every blank finished product；Wherein, usual spheroidal graphite cast-iron is generally used for single cylinder camshaft, and alloy cast iron is generally used for High speed cam axle, and chilled cast iron is usually used in motorcar engine or protruding axis for gasoline machine, in the present embodiment, can carry out selection blanking according to the actual requirements；
Second step, end face milling centering, adopt numerically controlled lathe that blank is carried out end face milling process, centering；
3rd step, rough turn trunnion, adopt numerically controlled lathe that blank carries out rough turn trunnion process；
4th step, cam journal roughing, adopt outer mill-turn that cam journal is carried out roughing process；
5th step, heat treatment, adopt Equipment for Heating Processing that above-mentioned semi-finished product are carried out heat treatment；
6th step, alignment, adopt straightening equipment that above-mentioned semi-finished product are carried out alignment；
7th step, roughly grinds axle journal, cam, adopts cylindrical grinder that axle journal, cam are carried out coarse grinding treatment；
8th step, refines axle journal, cam, adopts cylindrical grinder that axle journal, cam are carried out fine grinding process, improves the machining accuracy of its finished product further, so as to meet production and processing demand；
9th step, polishing, above-mentioned semi-finished product are processed by shot blasting；Make its smooth surface；
Tenth step, cleans, above-mentioned semi-finished product is carried out surface clean；
11st step, lower ray examination, finished product is carried out lower ray examination, its qualified finished product carries out packaging warehouse-in.
What finally illustrate is, above example is only in order to illustrate technical scheme and unrestricted, other amendments that technical scheme is made by those of ordinary skill in the art or equivalent replace, without departing from the spirit and scope of technical solution of the present invention, all should be encompassed in the middle of scope of the presently claimed invention.
Claims (1)
1. the processing technique of a miniature gasoline engine camshaft, it is characterised in that include following operating procedure:
The first step, blanking, select the raw materials such as spheroidal graphite cast-iron, alloy cast iron, chilled cast iron to carry out blanking by every blank finished product；
Second step, end face milling centering, adopt numerically controlled lathe that blank is carried out end face milling process, centering；
3rd step, rough turn trunnion, adopt numerically controlled lathe that blank carries out rough turn trunnion process；
4th step, cam journal roughing, adopt outer mill-turn that cam journal is carried out roughing process；
5th step, heat treatment, adopt Equipment for Heating Processing that above-mentioned semi-finished product are carried out heat treatment；
6th step, alignment, adopt straightening equipment that above-mentioned semi-finished product are carried out alignment；
7th step, roughly grinds axle journal, cam, adopts cylindrical grinder that axle journal, cam are carried out coarse grinding treatment；
8th step, refines axle journal, cam, adopts cylindrical grinder that axle journal, cam are carried out fine grinding process；
9th step, polishing, above-mentioned semi-finished product are processed by shot blasting；
Tenth step, cleans, above-mentioned semi-finished product is carried out surface clean；
11st step, lower ray examination, finished product is carried out lower ray examination, its qualified finished product carries out packaging warehouse-in.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201610139243.2A CN105710609A (en) | 2016-03-14 | 2016-03-14 | Machining process for camshaft of small gasoline engine |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201610139243.2A CN105710609A (en) | 2016-03-14 | 2016-03-14 | Machining process for camshaft of small gasoline engine |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN105710609A true CN105710609A (en) | 2016-06-29 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201610139243.2A Pending CN105710609A (en) | 2016-03-14 | 2016-03-14 | Machining process for camshaft of small gasoline engine |
Country Status (1)
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| CN (1) | CN105710609A (en) |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107138921A (en) * | 2017-06-29 | 2017-09-08 | 沈忠伟 | A kind of camshaft processing method |
| CN107160101A (en) * | 2017-05-14 | 2017-09-15 | 合肥鼎鑫模具有限公司 | A kind of processing technology of the corrosion-resistant camshaft of automobile engine |
| CN107825088A (en) * | 2017-12-11 | 2018-03-23 | 四川省川磨岷机联合数控机器股份有限公司 | A kind of precision grinder spindle processing technique |
Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPH02141506A (en) * | 1988-10-10 | 1990-05-30 | Sinterstahl Gmbh | Manufacture of tubular cam shaft |
| CN103921060A (en) * | 2014-05-07 | 2014-07-16 | 广西玉柴机器股份有限公司 | Finish machining method of camshaft |
| CN104759948A (en) * | 2015-03-12 | 2015-07-08 | 中国人民解放军装甲兵工程学院 | Processing technique of remanufactured crankshaft |
| CN105014330A (en) * | 2015-06-29 | 2015-11-04 | 安庆市吉安汽车零件锻轧有限公司 | Camshaft producing and machining process |
| CN105196012A (en) * | 2015-09-23 | 2015-12-30 | 四川飞亚汽车零部件有限公司 | Novel process for processing crankshaft |
-
2016
- 2016-03-14 CN CN201610139243.2A patent/CN105710609A/en active Pending
Patent Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPH02141506A (en) * | 1988-10-10 | 1990-05-30 | Sinterstahl Gmbh | Manufacture of tubular cam shaft |
| CN103921060A (en) * | 2014-05-07 | 2014-07-16 | 广西玉柴机器股份有限公司 | Finish machining method of camshaft |
| CN104759948A (en) * | 2015-03-12 | 2015-07-08 | 中国人民解放军装甲兵工程学院 | Processing technique of remanufactured crankshaft |
| CN105014330A (en) * | 2015-06-29 | 2015-11-04 | 安庆市吉安汽车零件锻轧有限公司 | Camshaft producing and machining process |
| CN105196012A (en) * | 2015-09-23 | 2015-12-30 | 四川飞亚汽车零部件有限公司 | Novel process for processing crankshaft |
Non-Patent Citations (2)
| Title |
|---|
| 唐远志: "《机械与汽车工程认知实践》", 31 August 2013, 合肥工业大学出版社 * |
| 第二汽车制造厂: "《汽车发动机机械加工技术》", 30 April 1983, 机械工业出版社 * |
Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107160101A (en) * | 2017-05-14 | 2017-09-15 | 合肥鼎鑫模具有限公司 | A kind of processing technology of the corrosion-resistant camshaft of automobile engine |
| CN107138921A (en) * | 2017-06-29 | 2017-09-08 | 沈忠伟 | A kind of camshaft processing method |
| CN107138920A (en) * | 2017-06-29 | 2017-09-08 | 沈忠伟 | A kind of camshaft processing method |
| CN107199446A (en) * | 2017-06-29 | 2017-09-26 | 沈忠伟 | Camshaft processing method |
| CN107825088A (en) * | 2017-12-11 | 2018-03-23 | 四川省川磨岷机联合数控机器股份有限公司 | A kind of precision grinder spindle processing technique |
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Application publication date: 20160629 |
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