CN102950315A - Initial milling method of engine connecting rod - Google Patents
Initial milling method of engine connecting rod Download PDFInfo
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- CN102950315A CN102950315A CN2012104675420A CN201210467542A CN102950315A CN 102950315 A CN102950315 A CN 102950315A CN 2012104675420 A CN2012104675420 A CN 2012104675420A CN 201210467542 A CN201210467542 A CN 201210467542A CN 102950315 A CN102950315 A CN 102950315A
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Abstract
The invention discloses an initial milling method of an engine connecting rod, and the method comprises the following steps that first, a connecting rod body and a cover in a split connecting rod are respectively processed and combined together; during the processing of a whole bank, the processing can be continued only after the blank is cut and assembled into a connecting rod assembly; processing is carried out on a surface which corresponds to external friction for a plurality of times, a procedure capable of re-distributing internal stress in enough time is added between rough processing and fine processing, so that deformation occurs and is corrected as soon as possible; after the surface which corresponds to the external friction is processed, a positioning surface and other surfaces are processed; first large-end and small-end cross sections as well as small-end holes of a base surface are processed; then large-end holes of main surfaces, separated surfaces and bolt surfaces are processed; and large-end holes, small-end holes and end surfaces of the connecting rod assembly are finely processed. The initial milling method of the engine connecting rod has the beneficial effects that the liner motion can be stable and the speed is easily governed, so that the improvement of the moving precision of a machine is facilitated, and the service life can be prolonged; and meanwhile, the convenient and flexible deployment can be carried out on demand, the operation controllability can be improved, and the labor intensity can be reduced.
Description
Technical field
The present invention relates to a kind of processing method, relate in particular to the preliminary milling method of a kind of engine link.
Background technology
Hydraulic technique is one of key technology that realizes modernized transmission and control.Hydraulicdriven various element because lightweight, volume is little, can arrange easily and flexibly as required; realize conveniently, easily rectilinear motion, can realize large-scale stepless speed regulation, automatically realize overload protection in conjunction with state-of-the-art technology automaticity height and manipulation control, but adopt mineral oil as working media relative motion face lubricating by oneself, long service life.In recent years, hydropneumatics faces the competition with machine driving and Electrified Transmission, has adopted automatically controlled servo-drive system replacement or part to replace hydraulic drive such as Digit Control Machine Tool, middle-size and small-size molding machine; Its main cause is that hydraulic technique exists the shortcomings such as seepage, maintainability be poor; For this reason, must give full play to the advantage of hydropneumatics, attention and electronic technology combine, constantly enlarge application, reduce simultaneously energy consumption, raise the efficiency, adapt to the environmental protection demand, improve reliability, these all are the targets that hydropneumatics keeps punching, and also are the keys whether the hydropneumatic product is participated in market competition and won victory.But the hydraulic system assembly of existing this product exists a lot of problems from method of operating, working method, numerous and diverse different angles such as structure, and this causes work poor efficiency, heavier, the high expensive of weight of equipment.
Summary of the invention
The purpose of this invention is to provide and a kind ofly be conducive to convenient processing and manufacture, can make the steadily easily speed governing of its rectilinear motion, can enhance productivity, be convenient to safeguard, possess the auxiliary preliminary milling method of engine link that improves the equipment operation ability, to solve many deficiencies of prior art.
Purpose of the present invention is come specific implementation by the following technical programs:
The preliminary milling method of a kind of engine link mainly is comprised of following:
⑴ at first with the respectively again component winding after the processing of the gonnecting rod body in the Split connecting rod and lid, need to cut in the integral workblank process, continue processing after dressing up connecting rod ASSY again;
⑵ the corresponding surface that rubs in the external world repeatedly processes, and interts the operation that can make the redistribution of internal stress sufficient time between Roughing and fine machining, impels distortion to occur as early as possible and just loses;
⑶ carry out after the processing on the corresponding surface of extraneous friction, behind the reprocessing locating surface and process other face, first from basal plane processing, concentric reducer section, microcephaly hole, reprocess main face big end hole, parting plane, bolt face, then carry out the fine finishining of connecting rod ASSY, concentric reducer hole and end face;
⑷ each surperficial roughing separates with fine finishining to be carried out, and adopts a minute group selection assembling to dwindle piston pin and small end of connecting rod interporal lacuna.
The beneficial effect of the preliminary milling method of engine link of the present invention is: be conducive to convenient processing and manufacture, can make steadily easily speed governing of rectilinear motion, be conducive to improve the machine movement precision, can increase the service life; Simultaneously, be conducive to arrange easily and flexibly as required, can improve the operation controllability, reduce labour intensity.
The specific embodiment
The preliminary milling method of the described engine link of the embodiment of the invention, its key step comprises:
⑴ at first with the respectively again component winding after the processing of the gonnecting rod body in the Split connecting rod and lid, need to cut in the integral workblank process, continue processing after dressing up connecting rod ASSY again;
⑵ the corresponding surface that rubs in the external world repeatedly processes, and interts the operation that can make the redistribution of internal stress sufficient time between Roughing and fine machining, impels distortion to occur as early as possible and just loses;
⑶ carry out after the processing on the corresponding surface of extraneous friction, behind the reprocessing locating surface and process other face, first from basal plane processing, concentric reducer section, microcephaly hole, reprocess main face big end hole, parting plane, bolt face, then carry out the fine finishining of connecting rod ASSY, concentric reducer hole and end face;
⑷ each surperficial roughing separates with fine finishining to be carried out, and adopts a minute group selection assembling to dwindle piston pin and small end of connecting rod interporal lacuna.
Claims (1)
1. the preliminary milling method of engine link is characterized in that, mainly is comprised of following steps:
⑴ at first with the respectively again component winding after the processing of the gonnecting rod body in the Split connecting rod and lid, need to cut in the integral workblank process, continue processing after dressing up connecting rod ASSY again;
⑵ the corresponding surface that rubs in the external world repeatedly processes, and interts the operation that can make the redistribution of internal stress sufficient time between Roughing and fine machining, impels distortion to occur as early as possible and just loses;
⑶ carry out after the processing on the corresponding surface of extraneous friction, behind the reprocessing locating surface and process other face, first from basal plane processing, concentric reducer section, microcephaly hole, reprocess main face big end hole, parting plane, bolt face, then carry out the fine finishining of connecting rod ASSY, concentric reducer hole and end face;
⑷ each surperficial roughing separates with fine finishining to be carried out, and adopts a minute group selection assembling to dwindle piston pin and small end of connecting rod interporal lacuna.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2012104675420A CN102950315A (en) | 2012-11-19 | 2012-11-19 | Initial milling method of engine connecting rod |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2012104675420A CN102950315A (en) | 2012-11-19 | 2012-11-19 | Initial milling method of engine connecting rod |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN102950315A true CN102950315A (en) | 2013-03-06 |
Family
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN2012104675420A Pending CN102950315A (en) | 2012-11-19 | 2012-11-19 | Initial milling method of engine connecting rod |
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| CN (1) | CN102950315A (en) |
Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| FR2348779A1 (en) * | 1976-04-20 | 1977-11-18 | Mouton Jean | Connecting rods deburring machine - has rotating cutting tool to remove burr and produce conical furrow at each notch corner |
| JPH07238919A (en) * | 1994-02-25 | 1995-09-12 | Hino Motors Ltd | Small end shape of connecting rod and work method therefor |
| CN101444884A (en) * | 2008-12-18 | 2009-06-03 | 浙江跃进机械有限公司 | Machining process of engine connecting rod |
| CN102486199A (en) * | 2010-12-31 | 2012-06-06 | 上汽通用五菱汽车股份有限公司 | Machining process of engine connecting rod |
-
2012
- 2012-11-19 CN CN2012104675420A patent/CN102950315A/en active Pending
Patent Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| FR2348779A1 (en) * | 1976-04-20 | 1977-11-18 | Mouton Jean | Connecting rods deburring machine - has rotating cutting tool to remove burr and produce conical furrow at each notch corner |
| JPH07238919A (en) * | 1994-02-25 | 1995-09-12 | Hino Motors Ltd | Small end shape of connecting rod and work method therefor |
| CN101444884A (en) * | 2008-12-18 | 2009-06-03 | 浙江跃进机械有限公司 | Machining process of engine connecting rod |
| CN102486199A (en) * | 2010-12-31 | 2012-06-06 | 上汽通用五菱汽车股份有限公司 | Machining process of engine connecting rod |
Non-Patent Citations (2)
| Title |
|---|
| 于骏一: "《典型零件制造工艺》", 30 November 1989, 北京：机械工业出版社, article "连杆加工工艺过程", pages: 171-172 * |
| 张秋华: "汽车发动机连杆新材料新工艺的应用研究", 《芜湖职业技术学院学报》, 31 March 2010 (2010-03-31) * |
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Application publication date: 20130306 |