CN101992246A - Cold-pressed double-parabolic slab steel mould - Google Patents
Cold-pressed double-parabolic slab steel mould Download PDFInfo
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- CN101992246A CN101992246A CN 201010287542 CN201010287542A CN101992246A CN 101992246 A CN101992246 A CN 101992246A CN 201010287542 CN201010287542 CN 201010287542 CN 201010287542 A CN201010287542 A CN 201010287542A CN 101992246 A CN101992246 A CN 101992246A
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- punching block
- curved surface
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- steel mould
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Abstract
The invention relates to a cold-pressed double-parabolic slab steel mould comprising an upper steel mould, a hyperboloid molding surface, a bed mould and a lower steel mould. A qualified marine curve steel plate can be manufactured through the steps of steel mould manufacturing, steel mould assemble-welding, steel mould molded line polishing and compression mould inspection. The invention simplifies the process flow, reduces tooling material consumption, greatly reduces the cost and accelerates the progress of works.
Description
Technical field: the present invention relates to the shipbuilding industry, particularly relate to the employed double-parabolic slab punching block of colding pressing of a kind of hull plate processing.
Background technology: at shipbuilding industry, hull itself is made up of a large amount of bent plates, processing for this type of bent plate, traditional technology all is to make up and down wooden model earlier, makes sand mold then and waters and outpour steel mould tool and processing, uses large-sized hydraulic press at last, steel plate is clipped between the upper and lower molds, utilize the extruding of upper and lower molds to make the bent plate moulding, the processing step of this method is loaded down with trivial details, and is with high costs and consuming time longer.
Summary of the invention: the present invention makes mould to replace the cast steel mould with steel plate, has simplified technology, has reduced production cost.The object of the present invention is achieved like this, a kind of double-parabolic slab punching block of colding pressing, it comprises that punching block patrix, hyperboloid forming surface, tire plate, punching block counterdie form, go out double-parabolic slab with three-dimensional modeling, get its neutral surface (being face in the thickness of slab), need put certain reversible deformation surplus, general short, deep camber curve place bounce-back maximum, therefore in this setting-out, need to put surplus more, then based on the surplus curve, revise curved surface, bent limit is difficult for aligning when considering on the steel plate punching block oil pressure again, and the monolateral extension 20mm of curved surface is as aligning surplus.With reference to the finite element principle curved surface is divided into the square unit that length and width all are no more than 80CM, the limit of each unit couples together just becomes vertical floor and horizontal ribbed.After piecemeal was intact, three-dimensional lofting went out punching block, and added backing plate in the punching block bottom, considered the requirement of rigidity, and general backing plate will be thicker than floor, and thickness is at 20～30mm.Because the influence of curved surface, there is certain angle in the face that the tire plate of punching block contacts with double-parabolic slab, on large-sized structural parts, because the influence of length, the problem of angle is also not obvious, but on the less double-parabolic slab of specification, the contact-making surface of level has not only influenced the accurate of moulding, and sharp-pointed corner angle also are easy to cause staggered impression, therefore, each floor entity saves as when changing CAD over to behind the single part, should be with the blanking of floor maximum height.The present invention is simple in structure, and is easy to operate, can improve the machining accuracy of product.
Description of drawings: Fig. 1 is a structural representation of the present invention
1, punching block patrix 2, double-parabolic slab forming surface 3, punching block counterdie 4, tire plate
The specific embodiment:
In the drawings, a kind of double-parabolic slab punching block of colding pressing of the present invention, it comprises that punching block patrix, hyperboloid forming surface, tire plate, punching block counterdie form, during concrete enforcement, on base plate,, assemble each floor successively and spot welding is fixed, place outside plate at last again according to the numbering of floor by actual modeling size each floor assembly line that draws, upper and lower mould all assembles, and the point weld after.Earlier upper and lower die alignment is closed, if the line style kiss and, dislocation-free, no concave-convex injustice then can begin to weld fixed mould.The welding back is to the molded lines polishing of punching block; There is groove in floor on curved surface, this groove will have different angles in different positions according to the curved surface line style, after the dress welder does to finish, should be according to curved surface line style each floor of polishing, under the prerequisite that does not reduce depth of floor, each floor of polishing makes the curved surface line style fairing of being made up of each floor, coaming plate.The check of pressing mold; Behind the polishing end-of-job, with wooden model check punching block upper thread type, in the punching block is placed on the horizontal table up and down again, aligns another punching block, and as punching block line style kiss up and down and, and floor level no concave-convex, then punching block is qualified.
This method has been simplified technological process, and has reduced the frock materials, and for thin plate, also facts have proved can not produce impression,, also can adopt the generation of pressing a thin plate pad to avoid impression in the mode of die pressing surface as for slab, greatly reduce cost, accelerated project progress.
Claims (1)
1. double-parabolic slab punching block of colding pressing, it comprises that punching block patrix, hyperboloid forming surface, tire plate, punching block counterdie form, go out double-parabolic slab with three-dimensional modeling, get its neutral surface, need put certain reversible deformation surplus, therefore general short, deep camber curve place bounce-back maximum needs to put surplus more in this setting-out, based on the surplus curve, revise curved surface then; On the steel plate during punching block oil pressure bent limit be difficult for aligning, the monolateral extension 20mm of curved surface is as aligning surplus; With reference to the finite element principle curved surface is divided into the square unit that length and width all are no more than 80cm, the limit of each unit couples together just becomes vertical floor and horizontal ribbed; After piecemeal was intact, three-dimensional lofting went out punching block, and added backing plate in the punching block bottom, and general backing plate will be thicker than floor, and thickness is at 20～30mm; Because the influence of curved surface, there is certain angle in the face that the tire plate of punching block contacts with double-parabolic slab, should be with the blanking of floor maximum height.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201010287542 CN101992246A (en) | 2010-09-13 | 2010-09-13 | Cold-pressed double-parabolic slab steel mould |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201010287542 CN101992246A (en) | 2010-09-13 | 2010-09-13 | Cold-pressed double-parabolic slab steel mould |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN101992246A true CN101992246A (en) | 2011-03-30 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 201010287542 Pending CN101992246A (en) | 2010-09-13 | 2010-09-13 | Cold-pressed double-parabolic slab steel mould |
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| CN (1) | CN101992246A (en) |
Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102699108A (en) * | 2012-05-23 | 2012-10-03 | 南京航空航天大学 | Method for moulding circle-rectangular nozzle in hyperelliptic transition |
| CN103084450A (en) * | 2013-01-28 | 2013-05-08 | 广新海事重工股份有限公司 | Once forming stamping method of double-parabolic plate with consistent thickness |
| CN106270329A (en) * | 2016-08-24 | 2017-01-04 | 安徽华骅桥梁设备制造有限公司 | A kind of high-speed rail bridge hyperbola pier cap steel form and the equipment of manufacture thereof |
| CN107377698A (en) * | 2017-08-09 | 2017-11-24 | 江苏鹏诚钢构有限公司 | A kind of cold-formed mould of hyperboloid |
| CN109365618A (en) * | 2018-10-31 | 2019-02-22 | 招商局重工（江苏）有限公司 | A kind of processing method of shape of a saddle steel plate |
Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS54136567A (en) * | 1978-04-14 | 1979-10-23 | Toshiba Corp | Press forming die and its manufacture |
| JPS54136566A (en) * | 1978-04-14 | 1979-10-23 | Toshiba Corp | Press forming die and its manufacture |
| JP2003010934A (en) * | 2001-06-26 | 2003-01-15 | Hitachi Ltd | Manufacturing method for curved plate |
| CN1907647A (en) * | 2006-08-16 | 2007-02-07 | 中国南车集团株洲电力机车有限公司 | Three-dimensional curved surface covering forming method and die for streamline locomotive cab |
| CN201208625Y (en) * | 2008-06-20 | 2009-03-18 | 上海外高桥造船有限公司 | Curved surface processing mould |
| CN201291266Y (en) * | 2008-10-27 | 2009-08-19 | 中国北车集团大同电力机车有限责任公司 | Sheet cold stamping die |
-
2010
- 2010-09-13 CN CN 201010287542 patent/CN101992246A/en active Pending
Patent Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS54136567A (en) * | 1978-04-14 | 1979-10-23 | Toshiba Corp | Press forming die and its manufacture |
| JPS54136566A (en) * | 1978-04-14 | 1979-10-23 | Toshiba Corp | Press forming die and its manufacture |
| JP2003010934A (en) * | 2001-06-26 | 2003-01-15 | Hitachi Ltd | Manufacturing method for curved plate |
| CN1907647A (en) * | 2006-08-16 | 2007-02-07 | 中国南车集团株洲电力机车有限公司 | Three-dimensional curved surface covering forming method and die for streamline locomotive cab |
| CN201208625Y (en) * | 2008-06-20 | 2009-03-18 | 上海外高桥造船有限公司 | Curved surface processing mould |
| CN201291266Y (en) * | 2008-10-27 | 2009-08-19 | 中国北车集团大同电力机车有限责任公司 | Sheet cold stamping die |
Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102699108A (en) * | 2012-05-23 | 2012-10-03 | 南京航空航天大学 | Method for moulding circle-rectangular nozzle in hyperelliptic transition |
| CN103084450A (en) * | 2013-01-28 | 2013-05-08 | 广新海事重工股份有限公司 | Once forming stamping method of double-parabolic plate with consistent thickness |
| CN106270329A (en) * | 2016-08-24 | 2017-01-04 | 安徽华骅桥梁设备制造有限公司 | A kind of high-speed rail bridge hyperbola pier cap steel form and the equipment of manufacture thereof |
| CN107377698A (en) * | 2017-08-09 | 2017-11-24 | 江苏鹏诚钢构有限公司 | A kind of cold-formed mould of hyperboloid |
| CN109365618A (en) * | 2018-10-31 | 2019-02-22 | 招商局重工（江苏）有限公司 | A kind of processing method of shape of a saddle steel plate |
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| PB01 | Publication | ||
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| C02 | Deemed withdrawal of patent application after publication (patent law 2001) | ||
| WD01 | Invention patent application deemed withdrawn after publication |
Application publication date: 20110330 |