CN100441334C - Double curvature plate cold press forming method and equipment thereof - Google Patents
Double curvature plate cold press forming method and equipment thereof Download PDFInfo
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- CN100441334C CN100441334C CNB2004100204344A CN200410020434A CN100441334C CN 100441334 C CN100441334 C CN 100441334C CN B2004100204344 A CNB2004100204344 A CN B2004100204344A CN 200410020434 A CN200410020434 A CN 200410020434A CN 100441334 C CN100441334 C CN 100441334C
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- 238000000034 method Methods 0.000 title claims abstract description 21
- 239000000463 material Substances 0.000 claims abstract description 20
- 229910000831 Steel Inorganic materials 0.000 claims abstract description 7
- 239000010959 steel Substances 0.000 claims abstract description 7
- XEEYBQQBJWHFJM-UHFFFAOYSA-N Iron Chemical compound [Fe] XEEYBQQBJWHFJM-UHFFFAOYSA-N 0.000 claims description 16
- 230000002787 reinforcement Effects 0.000 claims description 13
- 239000007787 solid Substances 0.000 claims description 12
- 238000003466 welding Methods 0.000 claims description 12
- 238000003825 pressing Methods 0.000 claims description 11
- 229910052742 iron Inorganic materials 0.000 claims description 8
- 238000000465 moulding Methods 0.000 claims description 7
- 238000005516 engineering process Methods 0.000 claims description 5
- 230000011218 segmentation Effects 0.000 claims description 5
- 230000001419 dependent effect Effects 0.000 claims description 3
- 238000003556 assay Methods 0.000 claims description 2
- 238000005520 cutting process Methods 0.000 claims description 2
- 230000003014 reinforcing effect Effects 0.000 abstract 3
- 238000010276 construction Methods 0.000 abstract 1
- 230000002349 favourable effect Effects 0.000 abstract 1
- 238000004519 manufacturing process Methods 0.000 abstract 1
- 238000005259 measurement Methods 0.000 abstract 1
- 230000000306 recurrent effect Effects 0.000 abstract 1
- 238000000748 compression moulding Methods 0.000 description 5
- 229910000851 Alloy steel Inorganic materials 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
- 238000005272 metallurgy Methods 0.000 description 1
- 230000037303 wrinkles Effects 0.000 description 1
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Abstract
The present invention relates to a cold press forming method and an apparatus of a double curvature plate. The forming method comprises the following processes: manufacturability measurement of recurrent magnitude of the cold press forming of a steel plate, determination of the curvature radii of working plates of an upper press tire and a lower press tire and the sizes of working plates of a forming device, sheet material setting, feeding, press, etc. The method solves the problems existing in the cold press forming of the double curvature plate. The cold press forming apparatus of a double curvature plate comprises an upper press tire and a lower press tire. In order to ensure that the upper tire and the lower tire have favorable strength and rigidity, simultaneously simple structure and convenient construction, reinforcing rib plates are distributed in the radial directions of working curved surfaces of the upper tire and the lower tire in design; a plurality of reinforcing rib plates of the upper press tire are respectively and fixedly welded on a top plate and the working plates of the lower press tire; the reinforcing rib plates of the lower press tire are respectively and fixedly welded on the working plates of the lower press tire and a bottom plate; the upper press tire is fixed to an oil hydraulic press by the top plate, and the lower press tire is fixed to the oil hydraulic press by the bottom plate. The use of the cold press forming method of the upper press tire and the lower press tire can manufacture different double curvature plates with high quality and smooth forming shapes and completely meet the standard of the double curvature plate; the forming shape is smooth.
Description
(1) technical field
The present invention relates to the double-curvature panel forming technique, particularly relate to double-curvature panel cold compression molding method and device.
(2) background technology
The double-curvature panel structure is used for the metallurgical furnace furnace shell of metallurgy industry and the container of specific (special) requirements more, the used sheet material of this hyperbolicity structure should have higher high temperature strength and reach creep-resistant property preferably, mostly be the low-alloy steel that sheet material is thick, yield limit is high, required die mould power is big.Present squeezer can only make single curved plate moulding, and double-curvature panel can not moulding on squeezer, and the domestic special-purpose molding press device that also is not specifically designed to the cold moudling of large-scale furnace shell double-curvature panel at present.
(3) summary of the invention
The technical problem to be solved in the present invention provides a kind of process and device thereof of double-curvature panel cold moudling, solves the double-curvature panel cold moudling that radius of curvature is big, sheet material is thick, intensity is high.
The technical scheme that adopts is:
The double-curvature panel cold compression molding method comprises following process steps:
1, the manufacturability of steel plate cold moudling springback capacity is measured.Described springback capacity is relevant with the process conditions of hydraulic press pressure, sheet material material and thickness, assay method is: a test board getting the identical material of made double-curvature panel, test board is wide to be the same width of made double-curvature panel, long 1/12 of the made double-curvature panel that is at least, use the mold consistent with actual double-curvature panel curvature to carry out die mould then on hydraulic press, die mould finishes the back by measuring the coefficient of resilience of finally being determined steel plate by the radius of curvature of the radius of curvature of pressure test board and actual size:
The coefficient of resilience=actual curvature radius/test radius of curvature
2, the upper pressed tyre of shaped device, press down the determining of each radius of curvature of tire working plate.Consider the springback capacity of steel plate die mould, during technological design:
(1) actual each radius of curvature * coefficient of resilience of each radius of curvature of upper pressed tyre working plate=double-curvature panel.
(2) press down each radius of curvature of tire working plate=each radius of curvature+thickness of slab of upper pressed tyre working plate
3, the upper pressed tyre of shaped device and the technology that presses down tire working plate size are determined.
(1) upper pressed tyre is wide greater than workpiece with the working plate width that presses down tire.
(2) upper pressed tyre is long less than workpiece with the working plate length that presses down tire.
4, make upper pressed tyre and press down tire according to upper pressed tyre of determining and the working plate size and the radius of curvature that press down tire.
If 5 made double-curvature panel sizes are bigger, sectional is suppressed, and segmentation carries out that the sheet material number is put, blanking, and periphery is reserved certain surplus.
6, treat upper pressed tyre, press down tire and hydraulic press fixing after, the sheet material opsition dependent is placed on to press down goes here and there pressures, pad on the tire and press, be pressed onto to a certain degree the back and use 1: 1 iron sample case having made to check that aforesaid operations meets the demands until curvature repeatedly.
7, carry out surplus line, cutting then with iron sample case.
Round circle 1/6 during the compacting of above-mentioned double-curvature panel, corresponding center of circle angle is 60 °, and segmentation carries out that the sheet material number is put, blanking, and periphery is reserved the surplus of 2 times of thicknesss of slab.
Above-mentioned upper pressed tyre and press down tire working plate dimension process regulation;
(1) upper pressed tyre and press down the working plate width of tire than the wide 100-200mm of workpiece.
(2) upper pressed tyre and the working plate length that presses down tire get workpiece long 2/3,40 ° of center of circle angles.
Double-curvature panel cold moudling device comprises hydraulic press, upper pressed tyre, presses down tire.Upper pressed tyre is strengthened gusset by top board, last tire and is made up of the upper pressed tyre working plate of moulding curved surface, many footpaths of the monoblock tire that makes progress is strengthened gusset and is laid by the radial direction of upper pressed tyre working curved surface, its two ends difference solid welding is on top board and upper pressed tyre working plate, transversely tire reinforcement gusset divides polylith, multirow radially to arrange between gusset in two, solid welding constitutes upper pressed tyre around it on top board, upper pressed tyre working plate and adjacent two footpaths make progress tire reinforcement gusset.Press down tire by forming by press down tire working plate, following tire reinforcement gusset and the base plate of moulding curved surface, the downward tire in many footpaths of monoblock is strengthened gusset and is pressed the radial direction laying of pressing the tire working curved surface, its two ends solid welding are respectively pressing down on tire working plate and the base plate, laterally tire reinforcement gusset divides polylith, multirow radially to arrange between gusset in two down, solid welding is pressing down on the downward tire reinforcement in tire working plate, base plate and adjacent two footpaths gusset around it, constitutes to press down tire.
The present invention not only can suppress the different double-curvature panel of various curvature, and die mould quality height, satisfies the desired standard of housing curvature fully.The Zhe that wrinkles does not appear in the curve forming shape fairing after the compression moulding, the gap≤2mm of the iron sample case of curved plate and 1: 1,10% of the maximum attenuate amount≤wall thickness of sheet material.
(4) description of drawings
Fig. 1 is a double-curvature panel cold moudling apparatus structure schematic diagram.
Fig. 2 is the side view of Fig. 1.
Fig. 3 is the upper pressed tyre structural representation.
Fig. 4 is the A-A cutaway view of Fig. 3.
Fig. 5 is for pressing down the tire structural representation.
Fig. 6 is the A-A cutaway view of Fig. 5.
Fig. 7 is the structural representation of an embodiment of the present invention.
Fig. 8 is the vertical view of Fig. 7.
(5) specific embodiment
Embodiment one
Use double-curvature panel cold compression molding method and 300 tons of converter shells of device making, the hyperbolicity part-structure is seen Fig. 7, Fig. 8 on the furnace shell.Related size all is unit with the millimeter.Converter shell radius of curvature 4050 suitable for reading, end opening radius of curvature 4250, pars intermedia radius of curvature 1500, high by 793, thickness of slab 85.Full circle girth 25434 is pressed the compacting of full circle six five equilibriums, every workpiece arc length 4240,60 ° of angles.
At first get with 1/12 of the same material of converter shell, furnace shell double-curvature panel by technology and to make test board, test board length is 2120, wide by 800, thick 85, the test board of having got size uses the mold with the furnace shell same curvature to carry out die mould on hydraulic press, die mould is after survey, the ratio of each radius of curvature that records behind each radius of curvature of furnace shell and the die mould, promptly coefficient of resilience average out to 0.96.
According to the coefficient of resilience of being surveyed, each radius of curvature of upper pressed tyre working plate 4 all will reduce accordingly again, by formula:
Actual each the radius of curvature * coefficient of resilience of each radius of curvature of upper pressed tyre working plate=double-curvature panel
Corresponding with furnace shell, upper pressed tyre working plate 4 radius of curvature suitable for reading are 3888, end opening radius of curvature 4080, pars intermedia radius of curvature 1440.
Pressing down tire working plate 7 each radius of curvature is that upper pressed tyre working plate 4 each radius of curvature add sheet material thickness 85.Described upper pressed tyre working plate 4 and press down tire working plate 7 and all pass through hot-forming.
Wide wideer by 200 than workpiece 11 with the working plate that presses down tire by the technology upper pressed tyre again, determining wide is 1000, and length is 2/3 of workpiece 11 length, rounds circle 1/6 by process workpiece length, and upper pressed tyre is 2830 with the working plate length that presses down tire.
Make upper pressed tyre 1 and press down tire 2 according to upper pressed tyre, each radius of curvature that presses down tire and the working plate length determined and width again.
Again according to the full circle size of converter shell double-curvature panel, segmentation compacting during compacting, every section rounds circumference 1/6 and carries out that the sheet material number is put, blanking, and periphery is reserved the surplus of 2 times of thicknesss of slab.
Treat upper pressed tyre 1, press down tire 2 with hydraulic press fixing after, the following sheet material opsition dependent of honest material is placed on to press down goes here and there pressures, pad on the tire 2 and press, be pressed onto to a certain degree the back and use 1: 1 iron sample case having made to check, aforesaid operations meets the demands until curvature repeatedly, its die mould precision and the iron sample case gap≤2mm that makes at 1: 1.
Carry out the surplus line with iron sample case again, cut, weld assembling then, make 300 tons of converter hyperbolicity furnace shells.
Double-curvature panel cold moudling device comprises hydraulic press, upper pressed tyre 1, presses down tire 2.Upper pressed tyre 1 is strengthened gusset by top board 3, last tire and is made up of the upper pressed tyre working plate 4 of setting curved surface, 11 footpaths of monoblock tire that makes progress is strengthened gusset 5 and is laid by the radial direction of upper pressed tyre working plate 4 curved surfaces, its two ends difference solid welding is on top board 3 and upper pressed tyre working plate 4, transversely tire strengthen five of gussets 6 minutes in two footpaths upwards tire strengthen arranging between gusset, solid welding is on top board 3, upper pressed tyre working plate 4 and adjacent two footpaths make progress tire reinforcement gusset 5 around it, constitute the reinforcement gusset and be in pressured state, the upper pressed tyre 1 that increases stability and have good strength and rigidity.Pressing down tire 2 is made up of press down tire working plate 7, following tire reinforcement gusset and the base plate 8 of setting curved surface, the downward tire in 11 footpaths of monoblock is strengthened gusset 9 and is laid by the radial direction that presses down tire working plate 7 curved surfaces, its two ends solid welding are respectively pressing down on tire working plate 7 and the base plate 8, laterally down tire strengthen seven of gussets 10 minutes in two footpaths downwards tires strengthen arranging between gussets, solid welding is strengthened on the gusset 9 pressing down tire working plate 7, base plate 8 and the adjacent downward tire in two footpaths around it, constitute have good strength and stiffness press down tire 2.Upper pressed tyre 1 is fixedlyed connected with the oil pressure head by top board 3, presses down tire 2 and fixedlys connected with the hydraulic press base by base plate 8, constitutes double-curvature panel cold moudling device.
Claims (4)
1, double-curvature panel cold moudling device, comprise hydraulic press, upper pressed tyre (1) and press down tire (2), it is characterized in that upper pressed tyre (1) is by top board (3), going up tire for many strengthens gusset (5) and has the upper pressed tyre working plate (4) of moulding curved surface to form, go up tire and strengthen the radial direction laying that gusset (5) is pressed upper pressed tyre working plate (4) curved surface for many of monoblock, its two ends difference solid welding is on top board (3) and upper pressed tyre working plate (4), transversely tire is strengthened gusset (6) branch polylith, upwards arrange between tire reinforcement gusset respectively at two footpaths, solid welding is in top board (3) around it, upper pressed tyre working plate (4) and adjacent two footpaths make progress on the tire reinforcement gusset (5); Pressing down tire (2) is made up of press down tire working plate (7), following tire reinforcement gusset (9) and base plate (8) that the moulding curved surface is arranged, many following tires of monoblock are strengthened gusset (9) and are laid by the radial direction that presses down tire working plate (7) curved surface, its two ends solid welding are respectively pressing down on tire working plate (7) and the base plate (8), laterally tire is strengthened gusset (10) branch polylith down, respectively at arranging between two footpaths tire reinforcement downwards gusset, solid welding is pressing down on the downward tire reinforcement gussets in tire working plate (7), base plate (8) and adjacent two footpaths (9) around it.
2, the method that adopts double-curvature panel cold moudling device as claimed in claim 1 to carry out double-curvature panel cold moudling, its feature comprises following process steps:
The manufacturability of A, steel plate cold moudling springback capacity is measured, its assay method is: a test board getting the identical material of made double-curvature panel, test board is wide to be the same width of made double-curvature panel, long 1/12 of the made double-curvature panel that is at least, use the mold consistent with actual double-curvature panel curvature to carry out die mould then on hydraulic press, die mould finishes the back by measuring the coefficient of resilience of finally being determined steel plate by the radius of curvature of the radius of curvature of pressure test board and actual size;
The coefficient of resilience=actual curvature radius/test radius of curvature;
The upper pressed tyre of B, shaped device, press down the determining of each radius of curvature of tire working plate, consider the springback capacity of steel plate die mould, during technological design:
A, actual each the radius of curvature * coefficient of resilience of each radius of curvature of upper pressed tyre working plate=double-curvature panel;
B, press down each radius of curvature of tire working plate=each radius of curvature+thickness of slab of upper pressed tyre working plate;
The upper pressed tyre of C, shaped device and the technology that presses down tire working plate size are determined;
A, upper pressed tyre and to press down the working plate width of tire wide greater than workpiece;
B, upper pressed tyre and to press down the working plate length of tire long less than workpiece;
Upper pressed tyre that D, basis are determined and the working plate size that presses down tire and radius of curvature are made upper pressed tyre (1) and are pressed down tire (2);
E, when made double-curvature panel size is big, sectional is suppressed, segmentation carries out that the sheet material number is put, blanking, periphery is reserved certain surplus;
F, treat upper pressed tyre (1), press down tire (2) and hydraulic press fixing after, the sheet material opsition dependent is placed on to press down goes here and there pressure, pad on the tire (2) and press, compacting to a certain degree back checks that with 1: 1 iron sample case having made aforesaid operations meets the demands until curvature repeatedly;
G, carry out surplus line with iron sample case, cutting then.
3, the employing double-curvature panel cold moudling device according to claim 2 method of carrying out double-curvature panel cold moudling, when it is characterized in that described double-curvature panel is suppressed, round circle 1/6, corresponding central angle is 60 °, segmentation carries out that the sheet material number is put, blanking, and periphery is reserved 2 times of thicknesss of slab.
4, the employing double-curvature panel cold moudling device according to claim 2 method of carrying out double-curvature panel cold moudling is characterized in that described upper pressed tyre and presses down the working plate dimension process regulation of tire: upper pressed tyre and press down the working plate width of tire than the wide 100-200mm of workpiece; Upper pressed tyre and the working plate length that presses down tire get workpiece long 2/3,40 ° of center of circle angles.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNB2004100204344A CN100441334C (en) | 2004-04-21 | 2004-04-21 | Double curvature plate cold press forming method and equipment thereof |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNB2004100204344A CN100441334C (en) | 2004-04-21 | 2004-04-21 | Double curvature plate cold press forming method and equipment thereof |
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| CN1689723A CN1689723A (en) | 2005-11-02 |
| CN100441334C true CN100441334C (en) | 2008-12-10 |
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| CNB2004100204344A Expired - Lifetime CN100441334C (en) | 2004-04-21 | 2004-04-21 | Double curvature plate cold press forming method and equipment thereof |
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| CN111229879B (en) * | 2020-01-14 | 2021-07-20 | 武汉理工大学 | Springback ratio matrix description and springback compensation method for double-curvature plate forming springback |
| CN112372249B (en) * | 2020-11-13 | 2022-05-10 | 鞍钢建设集团有限公司 | Process method for one-time clean material cutting and hot press molding of double-curved-surface-section furnace shell of hot blast stove |
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| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US3491569A (en) * | 1965-09-03 | 1970-01-27 | Gazi Sabirov | Method of manufacturing double-curvature sheets |
| SU1616746A1 (en) * | 1988-07-18 | 1990-12-30 | Предприятие П/Я А-1944 | Method of shaping articles of double-curvature from sheet |
| SU1680409A1 (en) * | 1989-06-29 | 1991-09-30 | Институт Горного Дела Со Ан Ссср | Double-curvature part formation method |
| CN2137997Y (en) * | 1992-10-08 | 1993-07-14 | 广州造船厂 | Metal plate curved shaping machine |
| RU2002537C1 (en) * | 1992-02-11 | 1993-11-15 | Научно-исследовательский институт автоматизированных средств производства и контрол | Method and apparatus for shaping double-curvature sheet products |
| RU2042450C1 (en) * | 1993-04-16 | 1995-08-27 | Михаил Иванович Ярославцев | Method of making non-symmetrical double curvature surfaces |
| CN2340803Y (en) * | 1998-08-17 | 1999-09-29 | 上海市公路管理处 | Steel corrugated plate |
| CN2603713Y (en) * | 2003-02-27 | 2004-02-18 | 渤海船舶重工有限责任公司 | T-type rib clamping fixture |
-
2004
- 2004-04-21 CN CNB2004100204344A patent/CN100441334C/en not_active Expired - Lifetime
Patent Citations (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US3491569A (en) * | 1965-09-03 | 1970-01-27 | Gazi Sabirov | Method of manufacturing double-curvature sheets |
| SU1616746A1 (en) * | 1988-07-18 | 1990-12-30 | Предприятие П/Я А-1944 | Method of shaping articles of double-curvature from sheet |
| SU1680409A1 (en) * | 1989-06-29 | 1991-09-30 | Институт Горного Дела Со Ан Ссср | Double-curvature part formation method |
| RU2002537C1 (en) * | 1992-02-11 | 1993-11-15 | Научно-исследовательский институт автоматизированных средств производства и контрол | Method and apparatus for shaping double-curvature sheet products |
| CN2137997Y (en) * | 1992-10-08 | 1993-07-14 | 广州造船厂 | Metal plate curved shaping machine |
| RU2042450C1 (en) * | 1993-04-16 | 1995-08-27 | Михаил Иванович Ярославцев | Method of making non-symmetrical double curvature surfaces |
| CN2340803Y (en) * | 1998-08-17 | 1999-09-29 | 上海市公路管理处 | Steel corrugated plate |
| CN2603713Y (en) * | 2003-02-27 | 2004-02-18 | 渤海船舶重工有限责任公司 | T-type rib clamping fixture |
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| CN1689723A (en) | 2005-11-02 |
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Effective date of registration: 20100816 Address after: 125000 Huludao City, Liaoning province Longgang District Jinhu Road No. 132 Patentee after: BOHAI SHIPYARD GROUP Co.,Ltd. Address before: 125004 Huludao City, Liaoning province Longgang District Jinhu Road No. 132 Bohai Shipbuilding Heavy Industry Co. Ltd. Patentee before: BOHAI Shipbuilding Heavy Industry Co.,Ltd. |
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