CN102974687A - Annular special-shaped cambered surface section welded mold and manufacturing method thereof - Google Patents
Annular special-shaped cambered surface section welded mold and manufacturing method thereof Download PDFInfo
- Publication number
- CN102974687A CN102974687A CN2011102593578A CN201110259357A CN102974687A CN 102974687 A CN102974687 A CN 102974687A CN 2011102593578 A CN2011102593578 A CN 2011102593578A CN 201110259357 A CN201110259357 A CN 201110259357A CN 102974687 A CN102974687 A CN 102974687A
- Authority
- CN
- China
- Prior art keywords
- cambered surface
- tire location
- gusset
- special
- mold
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Granted
Links
Images
Abstract
The invention relates to the field of mold forming, in particular to a special-shaped cambered surface section welded mold and a manufacturing method of the special-shaped cambered surface section welded mold. The special-shaped cambered surface section welded mold and the manufacturing method of the special-shaped cambered surface section welded mold are characterized in that a welding method is utilized for manufacturing the hot pressing mold to meet forming accuracy requirements of special-shaped cambered surface sections; the special-shaped cambered surface section welded mold corresponds to a 45-degree special-shaped cambered surface and comprises an upper mold and a lower mold; the upper mold comprises an upper cover plate, an upper pressing cambered surface enclosing plate and upper mold positioning rib plates, and the upper mold positioning rib plates which are more than 4 in number are evenly arranged between the upper cover plate and the upper pressing cambered surface enclosing plate in the radial direction of the special-shaped cambered surface; and the lower mold comprises a lower cover plate, a lower pressing cambered surface enclosing plate and lower mold positioning rib plates, and the lower mold positioning rib plates are evenly arranged between the lower cover plate and the lower pressing cambered surface enclosing plate in the radial direction of the special-shaped cambered surface. Compared with the prior art, the special-shaped cambered surface section welded mold and the manufacturing method of special-shaped cambered surface section welded mold has the advantages that a large quantity of materials and finishing machining expenses for manufacturing the welded mold are saved compared to a casting-formed mold, the alignment tolerance of a longitudinal seam group between sections is not more than two millimeters, and the machining allowance after welding is controlled to be within +/- 5 millimeters.
Description
Technical field
The present invention relates to the mould molding field, relate in particular to a kind of annular special cambered surface section welding fixture and preparation method thereof.
Background technology
Annular special cambered surface section is applied in the multiple frame for movement, wherein the water power outer gate barrel is the important component part of bulb through-flow turbine water distributor, see accompanying drawing 4, similar frustum structure, body is the 55mm steel plate, take the curve revolving body that a certain central shaft rotating 360 degrees forms as bus centers on of the tangent formation of two incorgruous arcs.Mostly the in the past moulding of this special-shaped cambered surface section is to adopt casting numerical control finishing mold to divide 8 lobes hot-forming, be welded after hot-forming, consider that welding deformation and postwelding guarantee an amount of allowance and do not allow attenuate, very strict to the formed precision requirement of this type of special-shaped cambered surface section.The casting mold is large, and it is many to consume material and heavy, heavily about 40 tons of the every cover of mold after accurate machine adds, and the fine finishining of die mould face must be adopted three-dimension numerical controlled lathe in addition, and processing charges is high, and Production Time is long.
Summary of the invention
The purpose of this invention is to provide a kind of annular special cambered surface section welding fixture and preparation method thereof, make the hot pressing mold with the method for welding, when satisfying outer gate barrel abnormity cambered surface section formed precision, reduce production costs, enhance productivity.
For solving the problems of the technologies described above, technical scheme of the present invention is:
A kind of annular special cambered surface section welding fixture, corresponding 45 ° of special-shaped cambered surfaces, comprise tire and lower tire, described upper tire comprises upper cover plate, end plate one, end plate two, upper pressure cambered surface coaming plate and upper tire location gusset, upper tire location gusset more than four radially evenly is arranged between upper cover plate and the upper pressure cambered surface coaming plate along special-shaped cambered surface, adjacent upper tire location gusset ultimate range is not more than 200mm, and the two ends of upper tire location gusset are respectively equipped with end plate one and end plate two; Described lower tire comprises lower cover, end plate three, end plate four, presses down cambered surface coaming plate and lower tire location gusset, lower tire location gusset radially evenly is arranged on lower cover and presses down between the cambered surface coaming plate along special-shaped cambered surface, and the two ends of lower tire location gusset are respectively equipped with end plate three and end plate four.
The angle that described upper tire location gusset and lower tire location gusset distribute is no less than 48 °, and quantity is identical and the position is corresponding one by one.
Be respectively equipped with the steam vent of 2～3 diameter phi 60～90mm on described upper tire location gusset and the lower tire location gusset.
Described upper tire location gusset and the narrowest place of gusset, lower tire location width are 60～100mm.
A kind of preparation method of annular special cambered surface section welding fixture comprises the steps:
1) upper tire location gusset and lower tire positioning bar board size calculate:
Hot-forming annular special cambered surface section size is determined tire location gusset and lower tire positioning bar board size on each piece as required;
2) thickness of slab correcting process:
Step 1) upper tire location gusset is got it with lower tire location gusset width and is positioned at adjacent with it cover plate and presses cambered surface coaming plate beeline in, so that group is to upper tire location gusset in the process and gusset located by upper cover plate, lower tire and the lower cover contact jaw forms the nature groove;
3) welding:
Angle and set of locations install on request with upper cover plate and end plate two first, make the mark of the exact position of tire location gusset on each at upper cover plate and end plate two, and organized successively to both sides tire location gusset on each by the centre, then organize end plate one, adopt from the centre welding sequence to both sides to carry out symmetrical welding;
Angle and set of locations install on request with lower cover and end plate three, make the mark that each time tire is located the exact position of gusset at lower cover and end plate three, and organized successively to both sides each time tire location gusset by the centre, then organize end plate four, adopt from the centre welding sequence to both sides to carry out symmetrical welding;
4) up/down is pressed the assembling of cambered surface coaming plate:
Step 3) welding complete after, getting two blocks of 20～25mm steel plates that conform to die mould motherboard appearance and size is clipped in the middle the die mould motherboard fixing and welds solid, molded together after being heated to 1100～1150 ℃, press cambered surface coaming plate and upper tire location gusset in the inspection, press down the cambered surface coaming plate tight with the gusset applying of lower tire location after, respectively upper pressure cambered surface coaming plate and upper tire located gusset, press down cambered surface coaming plate and lower tire location gusset firm welding, binding face adopts plug welding to fix;
5) make three-dimensional template, the control formed precision:
Adopt the clean cut edge of the different directions sweep gauge after the moulding of 5～8mm steel plate Numerical control cutting motherboard, and fixedly be welded into three-dimensional template in the assembling of pressure testing motherboard, be used for behind the formal die mould accuracy checking and clean material and cut.
Compared with prior art, the invention has the beneficial effects as follows: welding positioner has been saved lot of materials and fine finishining expense than casting mold, and by strict control internal model making precision, the employing three-dimensional template checks, guaranteed well the formed precision of special-shaped cambered surface, 100% 1 time swaging is qualified, makes longitudinal joint group between lobe and the lobe to unfitness of butt joint≤2mm, postwelding allowance is controlled at ± 5mm within, satisfied well drawing and correlation technique quality requirement.
Description of drawings
Fig. 1 is embodiment of the invention structural representation;
Fig. 2 is the A-A cutaway view among Fig. 1;
Fig. 3 is three-dimensional template structural representation of the present invention;
Fig. 4 is water power outer gate barrel abnormity cambered surface busbar cross-section schematic diagram.
Among the figure: the upper upper tire of cambered surface coaming plate 5-location gusset 6-lower cover 7-end plate three 8-end plates four 9-that press of 1-upper cover plate 2-end plate one 3-end plate two 4-press down tire location gusset 11-steam vent 12-boundary curve model 13-steel pipe 14-die mould motherboard under the cambered surface coaming plate 10-
The specific embodiment
Below in conjunction with accompanying drawing the specific embodiment of the present invention is described further:
See Fig. 1, it is a kind of annular special cambered surface section welding fixture example structure of the present invention schematic diagram, comprise tire and lower tire, corresponding to 45 ° of special-shaped cambered surfaces, upper tire comprises upper cover plate 1, end plate 1, end plate 23, upper pressure cambered surface coaming plate 4 and upper tire location gusset 5, upper tire location gusset 5 more than 4 radially evenly is arranged between upper cover plate 1 and the upper pressure cambered surface coaming plate 4 along special-shaped cambered surface, and the two ends of upper tire location gusset 5 are respectively equipped with end plate 1 and end plate 23; Lower tire comprises lower cover 6, end plate 37, end plate 48, presses down cambered surface coaming plate 9 and lower tire location gusset 10, radially evenly be arranged on lower cover 6 and press down between the cambered surface coaming plate 9 along special-shaped cambered surface more than 4 lower tire location gussets 10, the two ends of lower tire location gusset 10 are respectively equipped with end plate 37 and end plate 48.
The preparation method of this water power outer gate barrel special cambered surface section welding fixture comprises the steps:
1) upper tire location gusset and lower tire positioning bar board size calculate:
Upper tire location gusset 5 is determined according to required hot-forming outer gate barrel abnormity cambered surface segmental arc size with lower tire location gusset 10, for guaranteeing the die mould precision, upper tire location gusset 5 stays 60～90mm surplus with the short transverse two ends of lower tire location gusset 10,360 ° of circumference of outer gate barrel abnormity cambered surface section divide 8 lobes molded, 45 ° of every lobes, upper tire location gusset 5 guarantees greater than 48 ° with lower tire location gusset 10 distributions, adjacent upper tire location gusset 5 and lower tire location gusset 10 spacings≤200mm, upper tire location gusset 5 is defined as each 15 with the quantity of lower tire location gusset 10, and upper tire location gusset 5 is identical with lower tire location gusset 10 quantity and the position is corresponding one by one;
Upper tire location gusset 5 is as far as possible narrow with lower tire location gusset 10 width, be that the mold height is as far as possible little, upper tire location gusset 5 is 60～100mm with lower tire location gusset 10 the narrowest place width, make mold that enough integral rigidities and stability be arranged, upper tire location gusset 5 is located the steam vent 11 that is respectively equipped with 2～3 diameter phi 60～90mm on the gusset 10 with lower tire, being conducive to like this heat in time evacuates, when avoiding the die mould time long, assemble heat in the mold and cause the mold distortion, affect the die mould precision, die mould motherboard 14 can be included in the mold during die mould, it is inadequate to avoid motherboard to expose mold outside left die mould precision.
2) thickness of slab correcting process:
See Fig. 2, upper tire location gusset 5 and lower tire location gusset 10 width are got it at adjacent with it cover plate and are pressed beeline between the cambered surface coaming plate, namely play tire location gusset width to be as the criterion by the centerline side size with thickness of slab, upper tire location gusset width with thickness of slab dorsad the centerline side size be as the criterion, tire location gusset 5 and upper cover plate 1, lower tire location gusset 10 and lower cover 6 contact jaws will form the natural groove of different angles on like this in organizing process, to guarantee weldquality and mold precision;
3) welding:
Angle and set of locations install on request with upper cover plate 1 and end plate 23 first, make the mark of the exact position of tire location gusset 5 on each at upper cover plate 1 and end plate 23, and organized successively to both sides tire location gusset 5 on each by the centre, then organize end plate 1, employing from the centre welding sequence to both sides carry out symmetrical welding, note the control welding deformation;
Angle and set of locations install on request with lower cover 6 and end plate 37, make the mark that each time tire is located the exact position of gusset 10 at lower cover 6 and end plate 37, and organized successively to both sides each time tire location gusset 10 by the centre, then organize end plate 48, employing from the centre welding sequence to both sides carry out symmetrical welding, note the control welding deformation;
4) up/down is pressed the assembling of cambered surface coaming plate:
Step 3) welding complete after, getting two blocks of 15～20mm steel plates that conform to die mould motherboard 14 appearance and sizes is clipped in the middle die mould motherboard 14 fixing and welds solid, putting into heating furnace heats, it is middle molded to put into together tire and lower tire after being heated to 1100～1150 ℃, press in the inspection cambered surface coaming plate 4 with upper tire location gusset 5, press down cambered surface coaming plate 9 and fit closely with lower tire location gusset 10 after, respectively upper pressure cambered surface coaming plate 4 and upper tire located gusset 5, press down cambered surface coaming plate 9 and lower tire location gusset 10 firm welding, binding face adopts plug welding to fix;
5) make three-dimensional template, the control formed precision:
See Fig. 3, the clean cut edge of the different directions sweep gauge 12 after the moulding of employing 5mm steel plate Numerical control cutting motherboard, and fixing in the assembling of die mould motherboard, be welded into three-dimensional template by steel pipe 13, reach only material cutting benchmark for accuracy checking behind the formal die mould.
Claims (5)
1. annular special cambered surface section welding fixture, corresponding 45 ° of special-shaped cambered surfaces, comprise tire and lower tire, it is characterized in that, described upper tire comprises upper cover plate, end plate one, end plate two, upper pressure cambered surface coaming plate and upper tire location gusset, upper tire location gusset more than four radially evenly is arranged between upper cover plate and the upper pressure cambered surface coaming plate along special-shaped cambered surface, and adjacent upper tire location gusset ultimate range is not more than 200mm, and the two ends of upper tire location gusset are respectively equipped with end plate one and end plate two; Described lower tire comprises lower cover, end plate three, end plate four, presses down cambered surface coaming plate and lower tire location gusset, lower tire location gusset radially evenly is arranged on lower cover and presses down between the cambered surface coaming plate along special-shaped cambered surface, and the two ends of lower tire location gusset are respectively equipped with end plate three and end plate four.
2. a kind of annular special cambered surface section welding fixture according to claim 1 is characterized in that, the angle that described upper tire location gusset and lower tire location gusset distribute is no less than 48 °, and quantity is identical and the position is corresponding one by one.
3. a kind of annular special cambered surface section welding fixture according to claim 1 and 2 is characterized in that, is respectively equipped with the steam vent of 2～3 diameter phi 60～90mm on described upper tire location gusset and the lower tire location gusset.
4. a kind of annular special cambered surface section welding fixture according to claim 3 is characterized in that, described upper tire location gusset and the narrowest place of gusset, lower tire location width are 60～100mm.
5. the preparation method of an annular special cambered surface section welding fixture is characterized in that, comprises the steps:
1) upper tire location gusset and lower tire positioning bar board size calculate:
Hot-forming annular special cambered surface section size is determined tire location gusset and lower tire positioning bar board size on each piece as required;
2) thickness of slab correcting process:
Step 1) upper tire location gusset is got it with lower tire location gusset width and is positioned at adjacent with it cover plate and presses cambered surface coaming plate beeline in, so that group is to upper tire location gusset in the process and gusset located by upper cover plate, lower tire and the lower cover contact jaw forms the nature groove;
3) welding:
Angle and set of locations install on request with upper cover plate and end plate two first, make the mark of the exact position of tire location gusset on each at upper cover plate and end plate two, and organized successively to both sides tire location gusset on each by the centre, then organize end plate one, adopt from the centre welding sequence to both sides to carry out symmetrical welding;
Angle and set of locations install on request with lower cover and end plate three, make the mark that each time tire is located the exact position of gusset at lower cover and end plate three, and organized successively to both sides each time tire location gusset by the centre, then organize end plate four, adopt from the centre welding sequence to both sides to carry out symmetrical welding;
4) up/down is pressed the assembling of cambered surface coaming plate:
Step 3) welding complete after, getting two blocks of 20～25mm steel plates that conform to die mould motherboard appearance and size is clipped in the middle the die mould motherboard fixing and welds solid, molded together after being heated to 1100～1150 ℃, press cambered surface coaming plate and upper tire location gusset in the inspection, press down the cambered surface coaming plate tight with the gusset applying of lower tire location after, respectively upper pressure cambered surface coaming plate and upper tire located gusset, press down cambered surface coaming plate and lower tire location gusset firm welding, binding face adopts plug welding to fix;
5) make three-dimensional template, the control formed precision:
Adopt the clean cut edge of the different directions sweep gauge after the moulding of 5～8mm steel plate Numerical control cutting motherboard, and fixedly be welded into three-dimensional template in the assembling of pressure testing motherboard, be used for behind the formal die mould accuracy checking and clean material and cut.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201110259357.8A CN102974687B (en) | 2011-09-03 | 2011-09-03 | A kind of annular special cambered surface section welding fixture and preparation method thereof |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201110259357.8A CN102974687B (en) | 2011-09-03 | 2011-09-03 | A kind of annular special cambered surface section welding fixture and preparation method thereof |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN102974687A true CN102974687A (en) | 2013-03-20 |
| CN102974687B CN102974687B (en) | 2016-03-02 |
Family
ID=47849197
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201110259357.8A Active CN102974687B (en) | 2011-09-03 | 2011-09-03 | A kind of annular special cambered surface section welding fixture and preparation method thereof |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN102974687B (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104668317A (en) * | 2015-02-13 | 2015-06-03 | 广西桂冠电力股份有限公司大化水力发电总厂 | Shape correcting method and shape correcting device for inner guide water ring of bulb through flow type water turbine |
Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| DE1452895B2 (en) * | 1965-08-03 | 1976-02-12 | Spetsializirovannoe Ferganskoe Montazhnoe Upravlenie, Fergana (Sowjetunion) | DEVICE FOR PRODUCING TWO-DIMENSIONAL CURVED TIN PANELS |
| CN1689723A (en) * | 2004-04-21 | 2005-11-02 | 渤海船舶重工有限责任公司 | Double curvature plate cold press forming method and equipment thereof |
| CN201253640Y (en) * | 2008-08-20 | 2009-06-10 | 鞍钢重型机械有限责任公司 | Converter-shell varied arc-segment hot compacting positioner |
| CN101653791A (en) * | 2008-08-20 | 2010-02-24 | 鞍钢重型机械有限责任公司 | Converter-shell varied arc-segment hot compacting positioner and positioner manufacturing method |
| CN202239244U (en) * | 2011-09-03 | 2012-05-30 | 鞍钢重型机械有限责任公司 | Annular special cambered surface section welding fixture |
-
2011
- 2011-09-03 CN CN201110259357.8A patent/CN102974687B/en active Active
Patent Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| DE1452895B2 (en) * | 1965-08-03 | 1976-02-12 | Spetsializirovannoe Ferganskoe Montazhnoe Upravlenie, Fergana (Sowjetunion) | DEVICE FOR PRODUCING TWO-DIMENSIONAL CURVED TIN PANELS |
| CN1689723A (en) * | 2004-04-21 | 2005-11-02 | 渤海船舶重工有限责任公司 | Double curvature plate cold press forming method and equipment thereof |
| CN201253640Y (en) * | 2008-08-20 | 2009-06-10 | 鞍钢重型机械有限责任公司 | Converter-shell varied arc-segment hot compacting positioner |
| CN101653791A (en) * | 2008-08-20 | 2010-02-24 | 鞍钢重型机械有限责任公司 | Converter-shell varied arc-segment hot compacting positioner and positioner manufacturing method |
| CN202239244U (en) * | 2011-09-03 | 2012-05-30 | 鞍钢重型机械有限责任公司 | Annular special cambered surface section welding fixture |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104668317A (en) * | 2015-02-13 | 2015-06-03 | 广西桂冠电力股份有限公司大化水力发电总厂 | Shape correcting method and shape correcting device for inner guide water ring of bulb through flow type water turbine |
| CN104668317B (en) * | 2015-02-13 | 2016-08-31 | 广西桂冠电力股份有限公司大化水力发电总厂 | The straightening method of water guiding ring and orthotic device thereof in bulb through-flow turbine |
Also Published As
| Publication number | Publication date |
|---|---|
| CN102974687B (en) | 2016-03-02 |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN102266876B (en) | Forming process and mould of seamless fork-shaped pipe | |
| CN102825140B (en) | Reducing die for swelling pressure modeled type automobile axle case | |
| CN202539362U (en) | Small-angle conical part molding die | |
| CN107309392A (en) | A kind of core mould of lightweight section fork | |
| CN107378407A (en) | The construction method of pipe steel member is mutually passed through in a kind of heavy in section | |
| CN203292314U (en) | Arc-shaped cold roll forming die for steel member | |
| CN111283385B (en) | Ultra-precise die machining method and ultra-precise die | |
| CN106735802A (en) | A kind of titanium alloy cylindrical structural member plasma arc increasing material manufacturing method | |
| CN202239244U (en) | Annular special cambered surface section welding fixture | |
| CN201768866U (en) | AT steel rail heel end forging and pressing forming die | |
| CN103144224A (en) | 45-degree O-shaped seal ring die and processing method thereof | |
| CN106493511A (en) | A kind of manufacture method of grate-cooler hydraulic cylinders bearing | |
| CN102974687B (en) | A kind of annular special cambered surface section welding fixture and preparation method thereof | |
| CN202862486U (en) | Multi-cavity 45-degree parting type rubber ring die | |
| CN104646532A (en) | Hot press forming mold of diversion pipe for ship | |
| CN202162227U (en) | Seamless forked pipe forming mould | |
| CN102179668B (en) | Boiler and pressure vessel pressing seal head and manufacture method | |
| CN100493755C (en) | Metal sheet molding process fro changing centre of circle | |
| CN202701205U (en) | Machining device of saddle-type bush part | |
| CN202062194U (en) | Pressing seal head for boiler and pressure container | |
| CN207735445U (en) | A kind of cable ring panel processing mold | |
| CN104209411B (en) | With the segmentation die mould technique of breach plate | |
| CN207447104U (en) | A kind of mold of shield machine helical blade | |
| CN210358863U (en) | Simple forming die with adjustable positioning size of side support | |
| CN206632701U (en) | It is a kind of to be used for solving the fixture for closing angle processing |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C06 | Publication | ||
| PB01 | Publication | ||
| C10 | Entry into substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant |