CN101869909A - Machining technology for cross-wedge-rolling shaft blank - Google Patents
Machining technology for cross-wedge-rolling shaft blank Download PDFInfo
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- CN101869909A CN101869909A CN 201010191208 CN201010191208A CN101869909A CN 101869909 A CN101869909 A CN 101869909A CN 201010191208 CN201010191208 CN 201010191208 CN 201010191208 A CN201010191208 A CN 201010191208A CN 101869909 A CN101869909 A CN 101869909A
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Abstract
The invention relates to a machining technology, in particular to a machining technology for a cross-wedge-rolling shaft blank, which particularly comprises the following processes: round steel blanking, heating the round steel to 1150-1200 DEG C in a medium-frequency induction furnace, adopting a cross wedge rolling machine to roll the round steel, cooling the rolled round steel to 700-750 DEG C through a frequency control walking beam cooler, conducting centralized cooling in heap on a stacker, sawing heads, normalizing, straightening, milling the heads, shot blasting and packaging finished products. Compared with die-forging parts, the static strength of the shaft parts produced by adopting the machining technology is improved by 30 percent, the fatigue strength can be improved by approximately 50 percent, the concentricity is high, the grain is refined, the cutting slag and the broken head do not exist, the cost is reduced and the method is mainly used for machining all kinds of gear shafts in the transmissions of automobiles, tractors, motorcycles, internal internal-combustion engines and the camshafts in engines.
Description
(1) technical field: the present invention relates to mechanical process technique, especially a kind of technological method for processing of cross-wedge-rolling shaft blank.
(2) background technology: at present, the main die forging method that adopts of axle such as the various gear shafts in automobile, tractor, motorcycle, the internal combustion engine iso-variable velocity device, the camshaft in engine class blank processing is processed, the problem that forging part exists is: overlap, burr are arranged, concentricity is relatively poor, the right angle face of convex-concave junction is shaped bad, and follow-up machined is time-consuming.
(3) summary of the invention: purpose of the present invention will solve existing axle class blank exactly and adopt die forging processing, blank has overlap, burr, concentricity relatively poor, the right angle face of the convex-concave junction defective such as bad that is shaped provides a kind of technological method for processing of cross-wedge-rolling shaft blank.
Concrete scheme of the present invention is: the technological method for processing of cross-wedge-rolling shaft blank is characterized in that: comprise following technological process: round steel blanking → intermediate frequency furnace is heated to 1150～1200 ℃ → employing cross wedge rolling machine roll forming → frequency control walking beam cooler and is cooled to 700～750 ℃ of → yard material machines and concentrates cooling in heap → saw head → normalizing → alignment → milling head → ball blast → packing to produce.
The roll forming of cross wedge rolling machine described in the present invention process interruption face shrinkage factor should be less than 75%,
Shaping principle of the present invention is: circular blank is heated to 1150～1200 ℃, pass through axial admission, with two wedge shape moulds that are contained on the homodromal roll, under the active force of wedge shape mould projection, drive the part rotation, and make workpiece produce the continuous and local small deformation, finally be rolled into various many steps axles, distortion mainly is a radial compression, extends axially.
The inventive method and die forging method compare, and production efficiency can improve 3-7 doubly, economical with materials 20-40%, and production cost reduces about 30%, and noiselessness, and is pollution-free.Use the product that the present invention produces, recessed shelves (axle journal) part directly shuts out, and the width accuracy of the diameter of axle and step is higher, and the two sides at axle journal and right angle need not process.And by rolling axial workpiece, its metal streamline is along the axis of workpiece continuous distributed that stretches out, and grain refinement does not have the cutting broken end, can improve 30% than the static strength of die forging part, and fatigue strength can improve about 50%.
(4) description of drawings:
Accompanying drawing is a kind of front view of automobile gear axle.
(5) specific embodiment:
Referring to accompanying drawing, this is a kind of blahk structure figure of automobile gear axle.Use the present invention and produce this axis blank, its technological process is: round steel blanking → middle step induction furnace is heated to 1150～1200 ℃ → employing cross wedge rolling machine roll forming (this process interruption face shrinkage factor should be controlled less than 75%) → frequency control walking beam cooler and is cooled to the concentrated cooling in heap of 700～750 ℃ of → yard material machines → saw head → normalizing → alignment → milling head → ball blast → packing product.
Claims (2)
1. the technological method for processing of cross-wedge-rolling shaft blank is characterized in that: comprise following technological process: round steel blanking → intermediate frequency furnace be heated to 1150～1200 ℃ → adopt cross wedge rolling machine roll forming → frequency control walking beam cooler to be cooled to 700～750 ℃ of → yard material machines to concentrate cooling in heap → saw head → normalizing → alignment → milling head → ball blast → packing product.
2. the technological method for processing of cross-wedge-rolling shaft blank according to claim 1, it is characterized in that: described cross wedge rolling machine roll forming process interruption face shrinkage factor should be less than 75%.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201010191208 CN101869909A (en) | 2010-06-04 | 2010-06-04 | Machining technology for cross-wedge-rolling shaft blank |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201010191208 CN101869909A (en) | 2010-06-04 | 2010-06-04 | Machining technology for cross-wedge-rolling shaft blank |
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| CN101869909A true CN101869909A (en) | 2010-10-27 |
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| Application Number | Title | Priority Date | Filing Date |
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| CN 201010191208 Pending CN101869909A (en) | 2010-06-04 | 2010-06-04 | Machining technology for cross-wedge-rolling shaft blank |
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Cited By (10)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102989951A (en) * | 2012-08-22 | 2013-03-27 | 昌利锻造有限公司 | Forging method of automotive camshaft |
| CN103341741B (en) * | 2013-06-16 | 2015-08-05 | 吉林大学 | The combination process that the driving and driven spiral bevel gear wheel blank of main speed reducer of rear axle is shaped |
| CN104972277A (en) * | 2015-06-29 | 2015-10-14 | 安庆市吉安汽车零件锻轧有限公司 | Machining technology for transverse rolling cam shaft workblank |
| CN105583228A (en) * | 2016-01-18 | 2016-05-18 | 山东汇锋传动股份有限公司 | Cross-wedge-rolling production process for blanks of shaft parts, and hydraulic straightening, end-cutting and forming machine |
| CN105880281A (en) * | 2015-01-26 | 2016-08-24 | 株洲时代新材料科技股份有限公司 | Method for manufacturing anti-side-rolling torsion bar shaft blank |
| CN107150212A (en) * | 2017-07-12 | 2017-09-12 | 安徽凯密克企业管理咨询有限公司 | A kind of forging technology of auto parts connecting rod blank |
| CN107470858A (en) * | 2017-07-13 | 2017-12-15 | 安徽众鑫科技股份有限公司 | A kind of automobile gearbox input shaft processing method |
| CN107671140A (en) * | 2017-08-09 | 2018-02-09 | 安庆市振发汽车锻件有限责任公司 | A kind of cross wedge rolling part processing unit (plant) and its method |
| CN108044306A (en) * | 2017-11-30 | 2018-05-18 | 王国利 | A kind of energy saving green processing technologies of waste and old steel side bar |
| CN109013993A (en) * | 2018-08-17 | 2018-12-18 | 北京科技大学 | A kind of method of fast forging circle-cross wedge rolling accurate forming rail truck axle |
Citations (4)
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| CN1202927A (en) * | 1995-10-04 | 1998-12-23 | 普罗格特-甘布尔公司 | Process for making a low density detergent composition by agglomeration with a hydrated salt |
| CN1528540A (en) * | 2003-09-28 | 2004-09-15 | 北京科技大学 | Automobile semiaxle wedge cross-rolling precision shaping method |
| CN1974054A (en) * | 2006-12-08 | 2007-06-06 | 青特集团有限公司 | Slender stepped shaft machining process |
| CN100389900C (en) * | 2006-11-27 | 2008-05-28 | 北京科技大学 | Wedge cross-rolling two cycle roll forming method for automobile half-shaft blank |
-
2010
- 2010-06-04 CN CN 201010191208 patent/CN101869909A/en active Pending
Patent Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
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| CN1202927A (en) * | 1995-10-04 | 1998-12-23 | 普罗格特-甘布尔公司 | Process for making a low density detergent composition by agglomeration with a hydrated salt |
| CN1528540A (en) * | 2003-09-28 | 2004-09-15 | 北京科技大学 | Automobile semiaxle wedge cross-rolling precision shaping method |
| CN100389900C (en) * | 2006-11-27 | 2008-05-28 | 北京科技大学 | Wedge cross-rolling two cycle roll forming method for automobile half-shaft blank |
| CN1974054A (en) * | 2006-12-08 | 2007-06-06 | 青特集团有限公司 | Slender stepped shaft machining process |
Non-Patent Citations (1)
| Title |
|---|
| 《锻压装备与制造技术》 20050630 袁文生，王芳 楔横轧工艺在汽车半轴生产中的应用 第89页第27-29行,第.90页第2行 1-2 , 第3期 2 * |
Cited By (13)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102989951A (en) * | 2012-08-22 | 2013-03-27 | 昌利锻造有限公司 | Forging method of automotive camshaft |
| CN103341741B (en) * | 2013-06-16 | 2015-08-05 | 吉林大学 | The combination process that the driving and driven spiral bevel gear wheel blank of main speed reducer of rear axle is shaped |
| CN105880281B (en) * | 2015-01-26 | 2017-12-22 | 株洲时代新材料科技股份有限公司 | A kind of anti-side rolling torsion rod axis blank manufacture method |
| CN105880281A (en) * | 2015-01-26 | 2016-08-24 | 株洲时代新材料科技股份有限公司 | Method for manufacturing anti-side-rolling torsion bar shaft blank |
| CN104972277A (en) * | 2015-06-29 | 2015-10-14 | 安庆市吉安汽车零件锻轧有限公司 | Machining technology for transverse rolling cam shaft workblank |
| CN105583228A (en) * | 2016-01-18 | 2016-05-18 | 山东汇锋传动股份有限公司 | Cross-wedge-rolling production process for blanks of shaft parts, and hydraulic straightening, end-cutting and forming machine |
| CN107150212A (en) * | 2017-07-12 | 2017-09-12 | 安徽凯密克企业管理咨询有限公司 | A kind of forging technology of auto parts connecting rod blank |
| CN107470858A (en) * | 2017-07-13 | 2017-12-15 | 安徽众鑫科技股份有限公司 | A kind of automobile gearbox input shaft processing method |
| CN107470858B (en) * | 2017-07-13 | 2020-05-15 | 安徽众鑫科技股份有限公司 | Machining method for input shaft of automobile gearbox |
| CN107671140A (en) * | 2017-08-09 | 2018-02-09 | 安庆市振发汽车锻件有限责任公司 | A kind of cross wedge rolling part processing unit (plant) and its method |
| CN107671140B (en) * | 2017-08-09 | 2023-12-22 | 徐州锡沂康成食品检验检测研究院有限公司 | Machining device and method for cross wedge rolling piece |
| CN108044306A (en) * | 2017-11-30 | 2018-05-18 | 王国利 | A kind of energy saving green processing technologies of waste and old steel side bar |
| CN109013993A (en) * | 2018-08-17 | 2018-12-18 | 北京科技大学 | A kind of method of fast forging circle-cross wedge rolling accurate forming rail truck axle |
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Open date: 20101027 |