CN104815942A - Diesel engine crankshaft machining technology - Google Patents

Diesel engine crankshaft machining technology Download PDF

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Publication number
CN104815942A
CN104815942A CN201510223112.8A CN201510223112A CN104815942A CN 104815942 A CN104815942 A CN 104815942A CN 201510223112 A CN201510223112 A CN 201510223112A CN 104815942 A CN104815942 A CN 104815942A
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CN
China
Prior art keywords
fire
machining technology
corners
finishing
diesel engine
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Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Pending
Application number
CN201510223112.8A
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Chinese (zh)
Inventor
韦守记
Original Assignee
韦守记
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by 韦守记 filed Critical 韦守记
Priority to CN201510223112.8A priority Critical patent/CN104815942A/en
Publication of CN104815942A publication Critical patent/CN104815942A/en
Pending legal-status Critical Current

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Classifications

    • BPERFORMING OPERATIONS; TRANSPORTING
    • B21MECHANICAL METAL-WORKING WITHOUT ESSENTIALLY REMOVING MATERIAL; PUNCHING METAL
    • B21KMAKING FORGED OR PRESSED METAL PRODUCTS, e.g. HORSE-SHOES, RIVETS, BOLTS OR WHEELS
    • B21K1/00Making machine elements
    • B21K1/06Making machine elements axles or shafts
    • B21K1/08Making machine elements axles or shafts crankshafts

Abstract

The invention discloses a diesel engine crankshaft machining technology. The machining technology comprises the steps of 1) first fire: pressing rods through pressure pliers and performing bottom chewing, upsetting and drawing out; 2) second fire: upsetting, drawing out and marking, wherein the marking depth is 120; 3) third fire: grinding corners through a V-shaped anvil which is about 120 degrees, wherein the grinding capacity is 170, and performing finishing and straightening; 4) rounding flanges to the technological size, checking the relative angles of the corners through an angle square after the size is in place, adjusting the relative angles among the corners through a wrench, chamfering the edges of the corners, and performing finishing and straightening to complete machining. By means of the machining technology, the machining technology can be applied to crankshafts of different types, forged crankshaft metal fibers are continuous and warp-free, good in forge piece quality, long in service life, small in tool auxiliary investment, high in forge piece additional value, apparent in economic benefit and applicable to forging production of various crankshafts.

Description

Diesel engine crankshaft processing technology
Technical field
The invention belongs to Machining Technology field, particularly relate to a kind of Diesel engine crankshaft processing technology.
Background technology
Bent axle is the strength member in Diesel engine, operationally stressed large and stressed complexity, and bent axle is again high-speed rotary turntable simultaneously, therefore requires that bent axle has enough strength and stiffness.
There is a very large defect in the bent axle that current employing and die forging are produced, namely the essential crystal grain fiber at crankshaft fillet place is discontinuous, thus weakens the intensity of bent axle, and the maximum place of various mechanical stress is born at fillet place just.
Summary of the invention
(1) technical problem that will solve
The technical problem to be solved in the present invention is: the object of the present invention is to provide a kind of Diesel engine crankshaft processing technology.
(2) technical scheme
In order to solve the problems of the technologies described above, the invention provides a kind of Diesel engine crankshaft processing technology, comprising the following steps:
1), the first fire: pressing tongs, bar, gnaws the end, jumping-up, pulling;
2), the second fire: jumping-up, pulling, number print, number print degree of depth 120;
3), the 3rd fire: turn by about 120 degree V swage block mistakes, offsetting amount 170, finishing, alignment;
4), rounding flange to process, after size puts in place, the relative angle respectively turned with angle square inspection, turns as benchmark with centre, with spanner adjustment respectively turn between relative angle, respectively turn edge chamfering, finishing, alignment, completion.
(3) beneficial effect
Technique scheme tool has the following advantages: according to technical scheme of the present invention, can be applicable to the bent axle of different model, to forge bent axle metallic fiber distortionless continuously, forging quality is good, long service life, tooling auxiliary tool less investment, forging added value is high, remarkable in economical benefits, can be applicable to the forging of multiple bent axle.
Detailed description of the invention
Below in conjunction with embodiment, the specific embodiment of the present invention is described in further detail.Following examples for illustration of the present invention, but are not used for limiting the scope of the invention.
A kind of Diesel engine crankshaft processing technology, comprises the following steps:
1), the first fire: pressing tongs, bar, gnaws the end, jumping-up, pulling;
2), the second fire: jumping-up, pulling, number print, number print degree of depth 120;
3), the 3rd fire: turn by about 120 degree V swage block mistakes, offsetting amount 170, finishing, alignment;
4), rounding flange to process, after size puts in place, the relative angle respectively turned with angle square inspection, turns as benchmark with centre, with spanner adjustment respectively turn between relative angle, respectively turn edge chamfering, finishing, alignment, completion.
According to technical scheme of the present invention, can be applicable to the bent axle of different model, to forge bent axle metallic fiber distortionless continuously, forging quality is good, long service life, tooling auxiliary tool less investment, forging added value is high, remarkable in economical benefits, can be applicable to the forging of multiple bent axle.
The above is only the preferred embodiment of the present invention; it should be pointed out that for those skilled in the art, under the prerequisite not departing from the technology of the present invention principle; can also make some improvement and replacement, these improve and replace and also should be considered as protection scope of the present invention.

Claims (1)

1. a Diesel engine crankshaft processing technology, is characterized in that: comprise the following steps:
1), the first fire: pressing tongs, bar, gnaws the end, jumping-up, pulling;
2), the second fire: jumping-up, pulling, number print, number print degree of depth 120;
3), the 3rd fire: turn by about 120 degree V swage block mistakes, offsetting amount 170, finishing, alignment;
4), rounding flange to process, after size puts in place, the relative angle respectively turned with angle square inspection, turns as benchmark with centre, with spanner adjustment respectively turn between relative angle, respectively turn edge chamfering, finishing, alignment, completion.
CN201510223112.8A 2015-05-05 2015-05-05 Diesel engine crankshaft machining technology Pending CN104815942A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
CN201510223112.8A CN104815942A (en) 2015-05-05 2015-05-05 Diesel engine crankshaft machining technology

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
CN201510223112.8A CN104815942A (en) 2015-05-05 2015-05-05 Diesel engine crankshaft machining technology

Publications (1)

Publication Number Publication Date
CN104815942A true CN104815942A (en) 2015-08-05

Family

ID=53726552

Family Applications (1)

Application Number Title Priority Date Filing Date
CN201510223112.8A Pending CN104815942A (en) 2015-05-05 2015-05-05 Diesel engine crankshaft machining technology

Country Status (1)

Country Link
CN (1) CN104815942A (en)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN110625051A (en) * 2019-10-25 2019-12-31 建龙北满特殊钢有限责任公司 Manufacturing method for integrally forging three-crank-pin crankshaft forging piece

Citations (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP4001010B2 (en) * 2002-12-20 2007-10-31 住友金属工業株式会社 CRANKSHAFT SHAPE MOLDING METHOD AND CRANKSHAFT MANUFACTURING METHOD
CN101733358A (en) * 2008-10-12 2010-06-16 通裕重工股份有限公司 Marine full-fibre crankshaft molding technique
JP2012086265A (en) * 2010-10-22 2012-05-10 Metalart Corp Method of manufacturing crank shaft, and crank shaft manufactured by the same
CN102728772A (en) * 2012-06-26 2012-10-17 江苏金源锻造股份有限公司 Method for forging large ship crank shaft
CN102744356A (en) * 2012-07-23 2012-10-24 南车资阳机车有限公司 Full-fiber bending-upsetting method for crank shaft
CN103691873A (en) * 2013-12-31 2014-04-02 江苏金源锻造股份有限公司 Forging process of engine crankshaft

Patent Citations (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP4001010B2 (en) * 2002-12-20 2007-10-31 住友金属工業株式会社 CRANKSHAFT SHAPE MOLDING METHOD AND CRANKSHAFT MANUFACTURING METHOD
CN101733358A (en) * 2008-10-12 2010-06-16 通裕重工股份有限公司 Marine full-fibre crankshaft molding technique
JP2012086265A (en) * 2010-10-22 2012-05-10 Metalart Corp Method of manufacturing crank shaft, and crank shaft manufactured by the same
CN102728772A (en) * 2012-06-26 2012-10-17 江苏金源锻造股份有限公司 Method for forging large ship crank shaft
CN102744356A (en) * 2012-07-23 2012-10-24 南车资阳机车有限公司 Full-fiber bending-upsetting method for crank shaft
CN103691873A (en) * 2013-12-31 2014-04-02 江苏金源锻造股份有限公司 Forging process of engine crankshaft

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN110625051A (en) * 2019-10-25 2019-12-31 建龙北满特殊钢有限责任公司 Manufacturing method for integrally forging three-crank-pin crankshaft forging piece

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Application publication date: 20150805