CN102921831B - Numerical control incremental die-less forming method for thin-walled blade - Google Patents
Numerical control incremental die-less forming method for thin-walled blade Download PDFInfo
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- CN102921831B CN102921831B CN201210396189.1A CN201210396189A CN102921831B CN 102921831 B CN102921831 B CN 102921831B CN 201210396189 A CN201210396189 A CN 201210396189A CN 102921831 B CN102921831 B CN 102921831B
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Abstract
The invention relates to a numerical control incremental die-less forming method for a thin-walled blade; and the method comprises the following steps of: 1) generating a tool motion track of the thin-walled blade by a processor; using a three-dimensional CAD (Computer Aided Design) modeling to construct a thin-walled blade model; carrying out forming path planning on the thin-walled blade model so as to generate the tool motion track of the thin-walled blade; and setting technical parameters; 2) mechanically machining a supporting cushion block designed in the processor; 3) clamping the supporting cushion block and a plate on a fixture of an incremental forming machine tool workbench; and coating a layer of lubricating oil on the surface of the plate; 4) controlling a forming tool to incrementally form the plate by using an incremental forming machine tool according to the tool motion track generated by the processor and the technical parameters; and 5) after the forming is finished, taking off the thin-walled blade. Compared with the prior art, the numerical control incremental die-less forming method for the thin-walled blade, provided by the invention, has the advantages that the part manufacturing period is reduced, the production cost is reduced, the development of a special mold is not needed and so on.
Description
Technical field
The present invention relates to a kind of method manufacturing thin wall vane, specifically a kind of progressive mouldless shaping method of numerical control of thin wall vane.
Background technology
Blade is one of most typical part in machinery manufacturing industry, has use widely in fields such as aviation, automobile, boats and ships.Therefore, the Design and manufacture level improving blade is a vital element task.Blade belongs to complex parts more, of a great variety, and by geometric accuracy, most of blade profile requires that higher free form surface forms.At present, blade fine finishining and semifinishing mainly contain the methods such as Electrolyzed Processing, precision forging and digital control processing.The Nuo Bute Anthony Bu Longsi of General Electric Co. Limited and John's Stewart Reynolds this etc. propose a kind of equipment of Electrolyzed Processing blade (patent No.: 88101230), adopt the method precision manufactureing blade of Electrolyzed Processing; (patent No.: 89107858.4), die hammer achieves the finish forge device of a kind of large-size steam turbine titanium alloy linear leaf of the proposition such as Xu Haoyi the overall finish forge to large-size steam turbine titanium alloy linear leaf; Li Kaiyu proposes to adopt the method for numerical control milling to manufacture turbine blade, improves precision and the quality (patent No.: 200410081331.9) of product.But this kind of sheet metal blade of fan blade is thinner due to thickness of slab, generally can not adopt said method and adopt traditional sheet stamping forming method to produce more.But press-processing method needs to develop special mould, therefore the general production cycle is longer, cost is also higher, is not suitable for the shaping of small lot blade.
Summary of the invention
Object of the present invention is exactly the progressive mouldless shaping method of numerical control of thin wall vane providing a kind of to overcome defect that above-mentioned prior art exists and shorten the part production cycle, reduce production cost, do not need to develop particular manufacturing craft.
Object of the present invention can be achieved through the following technical solutions:
The progressive mouldless shaping method of numerical control of thin wall vane, the method comprises the following steps:
1) processor generates the movement of tool track of thin wall vane by following steps:
The digital model of a, employing three-dimensional CAD modeling structure thin wall vane;
B, form industrial analysis, in digital model, adding technology supplements face, forms the final mask of thin wall vane;
C, according to final mask design thin wall vane lip block;
D, path planning is formed to final mask, generate the movement of tool track of thin wall vane, and set technological parameter;
2) machining is carried out to the lip block designed in processor;
3) by support backing plate and plate clamping on the fixture of progressive molding platen, and smear one deck lubricating oil in panel surface;
4) the movement of tool track that generates according to processor of progressive molding lathe and process parameter control forming tool carry out progressive molding to plate, and Sheet Metal Processing is become thin wall vane;
5) be shaped complete, take off thin wall vane.
Described analysis of forming technique is the concrete shape characteristic Design curved surface continuous print process complementary surface according to thin wall vane.
Described process complementary surface comprises assist formation face and clamping face.
The upper surface shape of described lip block is consistent with the upper contoured surface of thin wall vane or bottom profiled face shape.
Compared with prior art, this flexible forming method of sheet material progressive molding is applied to the production of fan blade by the present invention.Progressive molding method production fan blade described in the application of the invention, does not need to develop special mould, does not need special forcing press, substantially reduce this kind of multi items of fan blade, small lot sheet part production cycle, reduce production cost.
Accompanying drawing explanation
Fig. 1 is the schematic flow sheet of the inventive method;
Fig. 2 is the digital model schematic diagram of embodiment of the present invention fan blade;
Fig. 3 is the schematic diagram of plate progressive molding incipient stage in embodiment;
Fig. 4 is the schematic diagram of plate progressive molding ending phase in embodiment.
In figure: 1, fan blade profile; 2, assist formation face; 3, clamping face; 4, lip block; 5, plate; 6, fixture; 7, forming tool.
Detailed description of the invention
Elaborate to embodiments of the invention below, the present embodiment is implemented under premised on technical solution of the present invention, give detailed embodiment and concrete operating process, but protection scope of the present invention is not limited to following embodiment.
Embodiment
As shown in Figure 1, be specifically described the method that the present invention proposes for this thin wall vane of fan blade, the present embodiment method specifically comprises the following steps:
1) processor generates the movement of tool track of fan blade by following steps:
The digital model 1 of a, employing three-dimensional CAD modeling structure fan blade;
B, form industrial analysis, according to the concrete shape characteristic Design curved surface continuous print process complementary surface of fan blade, and adding technology supplements face in digital model, forms the final mask of fan blade, described process complementary surface comprises assist formation face 2 and clamping face 3, as shown in Figure 2;
C, according to final mask design fan blade lip block, the upper surface shape of described lip block is consistent with the upper contoured surface of fan blade or bottom profiled face shape;
D, path planning is formed to final mask, generate the movement of tool track of fan blade, and set technological parameter;
2) machining is carried out to the lip block designed in processor;
3) by support backing plate 4 and plate 5 clamping on the fixture 6 of progressive molding platen, and at plate 5 surface smear one deck lubricating oil;
4) the movement of tool track that generates according to processor of progressive molding lathe and process parameter control forming tool 7 pairs of plates 5 carry out progressive molding, Sheet Metal Processing are become fan blade, as shown in Figure 3;
5) schematic diagram after being shaped as shown in Figure 4, takes off fan blade and namely completes shaping operation.
Claims (2)
1. the progressive mouldless shaping method of the numerical control of thin wall vane, it is characterized in that, the method comprises the following steps:
1) processor generates the movement of tool track of thin wall vane by following steps:
The digital model of a, employing three-dimensional CAD modeling structure thin wall vane;
B, form industrial analysis, in digital model, adding technology supplements face, forms the final mask of thin wall vane;
Described analysis of forming technique is the concrete shape characteristic Design curved surface continuous print process complementary surface according to thin wall vane; Described process complementary surface comprises assist formation face and clamping face;
C, according to final mask design thin wall vane lip block;
D, path planning is formed to final mask, generate the movement of tool track of thin wall vane, and set technological parameter;
2) machining is carried out to the lip block designed in processor;
3) by support backing plate and plate clamping on the fixture of progressive molding platen, and smear one deck lubricating oil in panel surface;
4) the movement of tool track that generates according to processor of progressive molding lathe and process parameter control forming tool carry out progressive molding to plate, and Sheet Metal Processing is become thin wall vane;
5) be shaped complete, take off thin wall vane.
2. the progressive mouldless shaping method of the numerical control of a kind of thin wall vane according to claim 1, is characterized in that, the upper surface shape of described lip block is consistent with the upper contoured surface of thin wall vane or bottom profiled face shape.
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| Application Number | Priority Date | Filing Date | Title |
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| CN201210396189.1A CN102921831B (en) | 2012-10-17 | 2012-10-17 | Numerical control incremental die-less forming method for thin-walled blade |
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| CN201210396189.1A CN102921831B (en) | 2012-10-17 | 2012-10-17 | Numerical control incremental die-less forming method for thin-walled blade |
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| CN102921831A CN102921831A (en) | 2013-02-13 |
| CN102921831B true CN102921831B (en) | 2015-07-08 |
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Families Citing this family (4)
| Publication number | Priority date | Publication date | Assignee | Title |
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| CN110666448B (en) * | 2019-09-09 | 2020-06-09 | 北京航空航天大学 | Method for forming small-caliber large-curvature ultra-precise antenna panel |
| CN111015788B (en) * | 2019-11-26 | 2022-04-05 | 北京航星机器制造有限公司 | Method for processing irregular space curved surface part of thin wall made of nylon material |
| CN112347575A (en) * | 2020-10-29 | 2021-02-09 | 浙江合众新能源汽车有限公司 | Method for improving simulation calculation efficiency of incremental forming |
| CN112845832B (en) * | 2021-01-08 | 2022-05-27 | 上海交通大学 | Progressive forming method of sheet metal part with non-cavity geometric characteristics |
Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101318203A (en) * | 2008-06-24 | 2008-12-10 | 南京航空航天大学 | Electrical heating numerical control incremental forming processing method and device for plate |
| CN102000957A (en) * | 2010-12-14 | 2011-04-06 | 无锡市澳富特精密快速成形科技有限公司 | Method for manufacturing wind turbine blade mould |
| CN102172698A (en) * | 2011-02-21 | 2011-09-07 | 上海交通大学 | Composite gradual plate forming device and method |
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| Publication number | Priority date | Publication date | Assignee | Title |
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| US7784183B2 (en) * | 2005-06-09 | 2010-08-31 | General Electric Company | System and method for adjusting performance of manufacturing operations or steps |
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Patent Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101318203A (en) * | 2008-06-24 | 2008-12-10 | 南京航空航天大学 | Electrical heating numerical control incremental forming processing method and device for plate |
| CN102000957A (en) * | 2010-12-14 | 2011-04-06 | 无锡市澳富特精密快速成形科技有限公司 | Method for manufacturing wind turbine blade mould |
| CN102172698A (en) * | 2011-02-21 | 2011-09-07 | 上海交通大学 | Composite gradual plate forming device and method |
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