CN101480699A - Method for manufacturing turbo-charger blower impeller mold - Google Patents
Method for manufacturing turbo-charger blower impeller mold Download PDFInfo
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- CN101480699A CN101480699A CNA2009100426041A CN200910042604A CN101480699A CN 101480699 A CN101480699 A CN 101480699A CN A2009100426041 A CNA2009100426041 A CN A2009100426041A CN 200910042604 A CN200910042604 A CN 200910042604A CN 101480699 A CN101480699 A CN 101480699A
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Abstract
The invention relates to a method for manufacturing a die of a compressor impeller of a turbocharger, which mainly comprises the following steps: firstly, a data model of the compressor impeller is designed: a computer three-dimensional data model of the compressor impeller of the turbocharger is designed through pro/engineer computer software; secondly, an impeller physical model is made by a digital control processing center: on a five-shaft digital control milling machine, an integrated impeller physical model is processed by metal materials, such as aluminum ally, and the like that are soluble in acid easily; thirdly, a metal layer is cast on the outer surface of the impeller physical model: an even nickel or copper layer with 2-7mm is cast on the outer surface of the impeller physical model by adopting an electroforming method; fourthly, the acid dissolution is carried out: the metal impeller physical model is molten by acid solution. The die of the compressor impeller of the turbocharger made through adopting the steps can be used for casting the compressor impeller of the rubber turbocharger.
Description
Technical field
The present invention relates to the preparation method of a kind of preparation method of impeller mold, particularly a kind of turbo-charger blower impeller mold.
Background technology
Compressor impeller is the vitals of turbocharger, its precision is directly connected to the quality of booster performance, and the precision of compressor impeller depends primarily on the precision of making this impeller mold, so it is very crucial to turbocharger air compressor to make high-precision impeller mold.
The preparation method that present turbo-charger blower impeller mold is commonly used mainly contains following several:
One, at first processes the impeller mock-up of a low melting material; make a resin former (being impeller mold) with this impeller mock-up; make the rubber impeller by the resin former again; but there is weak point in this method; it occurs the leaf destruction phenomenon easily when making the rubber impeller, cause broken blade to remain in the resin former and the resin former is scrapped through regular meeting.
Two, utilize digital control processing assembling impeller copper metal die, manufacturing process is roughly as follows:
1. design the 3-D graphic of impeller earlier.
2. pass through the 3-D graphic of impeller 3-D graphic designing mould module again.
3. on CNC milling machine, process each module of impeller mold (using the copper metal material processing), the polylith module spliced is connected together makes impeller mold again.
The advantage of the method for this manufacturing impeller mold is: it is comparatively simple that impeller mold is made form, respectively the forming module and only need go up general CNC milling machine and process and get final product of impeller mold.Because mould is to be spliced by a lot of modules, thus in use more convenient to the cleaning maintenance of mould.
But there is weak point in the method for this manufacturing impeller mold: because the impeller mold core is to be spliced by a lot of modules, module then be CNC milling machine lastblock piece process, work in-process, because workpiece centering, cutter use, lathe self precision etc. are artificial and the influence of objective factor, exist than mistake; Because mould is to be assembled by the polylith module, the bad control of the cumulative errors in assembling process can make to exist certain inconsistency on the shape of each module and the precision; And,, influence surface smoothness so the vestige of piece is arranged on the impeller blank of routing up because module is to be spliced; And with the impeller that such impeller mold is made, impeller blade tip root can't meet at right angles clearly, has the piece overlap, lean on manual repair's rubber pattern, causes rubber pattern yielding and shorten service life.
Three, the problem that exists at second method, Chinese patent CN1830597 discloses a kind of processing method of impellor mould of pressurizing unit compressor, the steps include:
1, sets up the compressor impeller cad model;
2, five-shaft numerical control programming, machining simulation;
3, low melting material blank moulding;
4, five milling low melting material compressor impeller formpistons;
5, record resin former, fusing low melting point compressor impeller formpiston;
6, record the silicon rubber formpiston;
7, turn over system gypsum former;
8, cast aluminum impeller shaped article.
The advantage of the method for this manufacturing impeller mold is: the Mold Making flow process is simple, and fabrication cycle is short, is convenient to make use in the urgency in the product demand time; It is the whole digital control processing of impeller, processes on the five-shaft numerical control milling machine, has guaranteed the precision and the conforming problem of the blade of this impeller mock-up (silicon rubber formpiston) significantly; What occur behind the impeller mock-up owing to melt away is whole die cavity, so problems such as rigging error that occurs when not having the mould assembling and piece overlaps.Preferably resolve the problem that occurs in the impeller blank.
The weak point of the method for this manufacturing impeller mold is: because the material of die cavity part is a resin, when making rubber pattern, if rubber pattern breaks at the situation in the die cavity, will badly clears up, even can cause scrapping of impeller mold; The impeller mold that resin material is made, the time has been grown easy deformation, and the life-span is shorter, needs often to make, and is cumbersome.
Summary of the invention
The preparation method that the objective of the invention is to overcome the above-mentioned deficiency of prior art and a kind of turbo-charger blower impeller mold is provided, the impeller mold precision height that this method is made, high conformity, not yielding, processing step is little, fabrication cycle is short and cost is low.
Technical scheme of the present invention is: a kind of preparation method of turbo-charger blower impeller mold, it mainly comprises the steps:
One, makes one easily by the impeller mock-up of the molten metal of acid;
Two, the impeller mock-up is carried out outer surface cast metal layer: utilize chemical method, cast the acidproof metal level of last layer 2-7mm at the outer surface of this impeller mock-up;
Three, acid is molten: the impeller mock-up of metal is melted away with acid solution, so just formed the acidproof metal cavitg of this impeller mock-up, turbo-charger blower impeller mold has promptly completed.
The further technical scheme of the present invention is: the first step comprises the steps:
The data model of a, meter compressor impeller: the Computerized three-dimensional data model (being the Computerized three-dimensional figure) of designing turbo-charger blower impeller by computer software (for example pro/engineer etc.);
B, utilize numerical control machining center to make an impeller mock-up: to utilize the Computerized three-dimensional data model of above-mentioned impeller, on the five-shaft numerical control milling machine, with the impeller mock-up that is processed an integral body easily by the molten metals such as aluminium alloy of acid.
The further again technical scheme of the present invention is: the chemical method of utilizing described in second step is electrocasting method, and described metal level is nickel dam or copper layer, and the thickness of nickel dam or copper layer is 2-7mm.
The also further technical scheme of the present invention is: the acid solution described in the 3rd step is hydrochloric acid or dilution heat of sulfuric acid.
The utility model compared with prior art has following characteristics:
The feature of this novel die is as follows:
1, the turbo-charger blower impeller mock-up that obtains owing to second step of this method comes out for the whole digital control processing of finalizing the design at a centering of five-shaft numerical control milling machine, the precision that largely guarantees this impeller mock-up blade can reach 0.03mm, surface roughness can reach 0.1 μ m, and each blade uniformity is fine;
2, because what dissolve away that sample wheel back occurs is whole die cavity, so rigging error that occurs when just not having the mould assembling and piece overlap etc.;
3 and owing to be metal die, not yielding in the time at mold storing yet, largely prolonged service life of mould, and when rubber pattern occurring and break in the die cavity, also be convenient to cleaning, the situation that can not occur therefore causing mould to be scrapped occurs.
4, its processing step is little, and fabrication cycle is short, and cost is low.
In order to be illustrated more clearly in the present invention, enumerate following examples, but its protection domain to invention there is not any restriction.
The specific embodiment
Embodiment 1
A kind of preparation method of turbo-charger blower impeller mold, it mainly comprises the steps
One, the data model of design compressor impeller: the Computerized three-dimensional data model (being the Computerized three-dimensional figure) of designing turbo-charger blower impeller by computer software (for example pro/engineer).
Two, utilize numerical control machining center to make an impeller mock-up: to utilize the Computerized three-dimensional data model of above-mentioned impeller, on the five-shaft numerical control milling machine, with the impeller mock-up that is processed an integral body easily by the molten metal material of acid (being preferably aluminium alloy).
The impeller mock-up of finishing by above-mentioned one, 2 two step also can be made with other rapid forming equipment commonly used.
Three, the impeller mock-up carries out outer surface cast metal layer: utilize chemical method, at the acidproof metal level of the outer surface of this impeller mock-up casting last layer 2-7mm, preferably with the method for electroforming uniform nickel dam or copper layer at the outer surface casting last layer 2-7mm of this impeller mock-up.
Four, acid is molten: the metallic impeller mock-up is melted with acid solution, acid solution generally can adopt the hydrochloric acid or the sulfuric acid solution of the concentration that is enough to melt away blank mock-up (being mainly aluminum alloy materials), so just formed the metal former (the chamber wall of metal former is nickel or copper) of the internal cavity that has this impeller mock-up shape, turbo-charger blower impeller former, just turbo-charger blower impeller mold have promptly completed.
The turbo-charger blower impeller mold of making through above-mentioned steps just can be used for the rubber turbo-charger blower impeller of casting.
The feature of the turbo-charger blower impeller mold of making of method of the present invention is as follows:
Because the turbo-charger blower impeller mock-up that second step of this method obtains comes out for the whole digital control processing of finalizing the design at a centering of five-shaft numerical control milling machine, has guaranteed that significantly the precision of this impeller mock-up blade can reach 0.03mm and the conforming problem of each blade; Because dissolving away what occur behind the impeller mock-up is whole die cavity, so rigging error that occurs when just not having the mould assembling and piece overlap etc.; And owing to be metal die, not yielding in the time at mold storing yet, largely prolong service life of mould, and when rubber pattern occurring and break at die cavity in, also be convenient to cleaning, can not occur so and the situation appearance that causes mould to be scrapped.
Claims (6)
1, a kind of preparation method of turbo-charger blower impeller mold is characterized in that: its technology comprises the steps:
One, makes one easily by the impeller mock-up of the molten metal of acid;
Two, the impeller mock-up is carried out outer surface cast metal layer: utilize chemical method, cast the acidproof metal level of last layer 2-7mm at the outer surface of this impeller mock-up;
Three, acid is molten: the impeller mock-up of metal is melted away with acid solution, so just formed the acidproof metal cavitg of this impeller mock-up, turbo-charger blower impeller mold has promptly completed.
2, the preparation method of turbo-charger blower impeller mold according to claim 1 is characterized in that: one of the described making of first step technology is comprised the steps: by the impeller mock-up of the molten metal of acid easily
The data model of a, design compressor impeller: the Computerized three-dimensional data model that goes out turbo-charger blower impeller by computer software design such as pro/engineer;
B, utilize numerical control machining center to make an impeller mock-up: to utilize the Computerized three-dimensional data model of above-mentioned impeller, on the five-shaft numerical control milling machine, with the impeller mock-up that is processed an integral body easily by the molten metals such as aluminium alloy of acid.
3, the preparation method of turbo-charger blower impeller mold according to claim 1 and 2, it is characterized in that: the chemical method of utilizing described in second step process is electrocasting method, described metal level is nickel dam or copper layer, and the thickness of nickel dam or copper layer is 2-7mm.
4, the preparation method of turbo-charger blower impeller mold according to claim 1 and 2 is characterized in that: the acid solution described in the three step process is hydrochloric acid or dilution heat of sulfuric acid.
5, the preparation method of turbo-charger blower impeller mold according to claim 3 is characterized in that: the acid solution described in the three step process is hydrochloric acid or dilution heat of sulfuric acid.
6, the preparation method of turbo-charger blower impeller mold according to claim 1 is characterized in that: first step process is for making the impeller mock-up with rapid forming equipment commonly used.
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| Application Number | Priority Date | Filing Date | Title |
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| CN2009100426041A CN101480699B (en) | 2009-01-23 | 2009-01-23 | Method for manufacturing turbo-charger blower impeller mold |
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| CN2009100426041A CN101480699B (en) | 2009-01-23 | 2009-01-23 | Method for manufacturing turbo-charger blower impeller mold |
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| CN101480699A true CN101480699A (en) | 2009-07-15 |
| CN101480699B CN101480699B (en) | 2011-05-04 |
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Cited By (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102125998A (en) * | 2010-12-31 | 2011-07-20 | 大同北方天力增压技术有限公司 | Method for manufacturing impeller mould for gas compressor of turbocharger |
| CN101716654B (en) * | 2009-12-15 | 2011-08-31 | 宁夏长城须崎铸造有限公司 | New process method for manufacturing mold capable of ensuring size accuracy of cast blade for large-scale water turbine |
| CN105290338A (en) * | 2015-10-29 | 2016-02-03 | 江苏恒尚动力高科有限公司 | Preparation method of turbocharger impeller mould |
| CN105834397A (en) * | 2016-05-26 | 2016-08-10 | 镇江市经纬工程机械有限公司 | Double-mold casting molding method for shock-resistance eccentric shaft |
| CN105945233A (en) * | 2016-05-26 | 2016-09-21 | 镇江市经纬工程机械有限公司 | Casting forming method of impact resistant eccentric shaft |
| CN106734867A (en) * | 2016-11-28 | 2017-05-31 | 江苏雨燕模业科技有限公司 | A kind of preparation method of turbo-charger impeller mould |
| CN112211756A (en) * | 2020-09-26 | 2021-01-12 | 昆明云内动力股份有限公司 | Low-pressure EGR system and gas flow control method |
Family Cites Families (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN100389905C (en) * | 2006-04-05 | 2008-05-28 | 中国兵器工业集团第七○研究所 | Processing method of impellor mould of pressurizing unit compressor |
-
2009
- 2009-01-23 CN CN2009100426041A patent/CN101480699B/en not_active Expired - Fee Related
Cited By (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101716654B (en) * | 2009-12-15 | 2011-08-31 | 宁夏长城须崎铸造有限公司 | New process method for manufacturing mold capable of ensuring size accuracy of cast blade for large-scale water turbine |
| CN102125998A (en) * | 2010-12-31 | 2011-07-20 | 大同北方天力增压技术有限公司 | Method for manufacturing impeller mould for gas compressor of turbocharger |
| CN105290338A (en) * | 2015-10-29 | 2016-02-03 | 江苏恒尚动力高科有限公司 | Preparation method of turbocharger impeller mould |
| CN105834397A (en) * | 2016-05-26 | 2016-08-10 | 镇江市经纬工程机械有限公司 | Double-mold casting molding method for shock-resistance eccentric shaft |
| CN105945233A (en) * | 2016-05-26 | 2016-09-21 | 镇江市经纬工程机械有限公司 | Casting forming method of impact resistant eccentric shaft |
| CN106734867A (en) * | 2016-11-28 | 2017-05-31 | 江苏雨燕模业科技有限公司 | A kind of preparation method of turbo-charger impeller mould |
| CN112211756A (en) * | 2020-09-26 | 2021-01-12 | 昆明云内动力股份有限公司 | Low-pressure EGR system and gas flow control method |
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| Publication number | Publication date |
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| CN101480699B (en) | 2011-05-04 |
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