CN1907647A - Three-dimensional curved surface covering forming method and die for streamline locomotive cab - Google Patents
Three-dimensional curved surface covering forming method and die for streamline locomotive cab Download PDFInfo
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- CN1907647A CN1907647A CN 200610032091 CN200610032091A CN1907647A CN 1907647 A CN1907647 A CN 1907647A CN 200610032091 CN200610032091 CN 200610032091 CN 200610032091 A CN200610032091 A CN 200610032091A CN 1907647 A CN1907647 A CN 1907647A
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Abstract
The invention relates to a three-dimension curvature covering molding method of streamline cabin, and relative mould, wherein it separates the cabin; and it is characterized in that: the molding of each block is molded by the combined steel mould relative to the three-dimension curvature cover; when molding, it uses the mesh hole of combined steel mould to watch the adhesive condition of cover and steel mould; the combined steel mould is mesh sheet beam visible structure; the baffle plate cam surface of mesh grid is formed by cutting the curvature of inner surface of cover via laser cutter with electric data; and it comprises longitudinal sheet beam and transverse sheet beam made from steel plates; and the baffle plate convex surface of mesh grid is matched with the curvature of inner surface of cover.
Description
Technical field
The invention belongs to a kind of parts preparation method of locomotive, be meant a kind of locomotive cab three-dimensional curved surface covering forming method especially; The present invention also relates to the mould structure of this method simultaneously, is mainly used in the streamline locomotive cab three-dimensional curved surface covering forming.
Background technology
Locomotive cab is the major part of locomotive head, and is along with the raising of locomotive speed, also more and more higher to the requirement of locomotive cab.In order to reduce windage, the express locomotive drivers' cab is generally all made streamline locomotive cab.Existing streamline locomotive cab covering mainly is after adopting sheet metal to make by three-dimensional curved surface covering piecemeal production method, and then block-by-block welds on the drivers' cab steel skeleton.Piecemeal is to adopt the method for local plastic deformation to make its progressively moulding when making covering.Preparation method when making every three-dimensional curved surface covering is: on hydraulic press covering is carried out global formation with shaping mould earlier, pattern (lean against model on observe the covering inner surface of first one-step forming) then, the place of misfitting that finds during to pattern carries out locally-shaped again on thin plate shaping apparatus, simultaneously repeatedly pattern and carry out locally-shaped, until satisfying the drawing requirement.And the preparation method of this streamline locomotive cab covering is to make earlier a whole wooden model consistent with drivers' cab covering inner surface, requires the outer surface of whole wooden model to meet the shape of drivers' cab covering inner surface as much as possible.Outer surface to whole wooden model must pass through hand grinding, and tests with the drivers' cab covering inner surface template (the template concave surface is that the drivers' cab covering inner surface molded lines that cuts at regular intervals on the level of drivers' cab three-dimension curved surface and vertical direction generates) that numerical control cutting machine downcuts by electronic data.Nearly 3 meters of the height of whole wooden model, pattern inconvenience when making the covering on drivers' cab top, and be not easy to from the back observation covering of wooden model and the applying situation of wooden model.Therefore, necessary this is improved.
Summary of the invention
The objective of the invention is to deficiency, provide a kind of and make and use more convenient, and be convenient to observe from behind the streamline locomotive cab covering preparation method of the applying situation of covering and model at existing streamline locomotive cab covering preparation method.
Another object of the present invention is to provide a kind of tools of said method, is a kind of process mould specifically.
According to implementer's case that purpose of the present invention proposed be: adopt streamline locomotive cab covering piecemeal production method, its characteristics are: the moulding of each piecemeal is by with the piecemeal combined steel pattern moulding one to one of three-dimensional curved surface covering, and the applying situation of observing covering and punching block when moulding by the combined steel grid hole from the back side of punching block; Its combined steel is a grid type plate-girder visual structure, and the dividing plate convex surface of combined steel grid is to be formed by the curved surface electronic data cutting of laser cutting machine by the covering inner surface.The plate-girder visual structure is first interactively is determined plate-girder from the three-dimension curved surface of drivers' cab covering inner surface a three-dimensional position, the cloth postpone of all plate-girder to be determined, on the three-dimensional position of plate-girder, generate the CAD stereogram of plate-girder again, on the plate-girder stereogram, generate the CAD plane that satisfies processing request simultaneously.The making of plate-girder be from plate-girder CAD plane, extract outline and in outline data, by the machine-shaping of Numerical control cutting lathe.Plate-girder is left corresponding socket (as Fig. 5, Fig. 6) respectively at regular intervals in length and breadth, the assembly welding of then the longitudinal and transverse plate-girder of corresponding each piece covering being pegged graft respectively, and weld with its base respectively, promptly become the combined type punching block of corresponding this covering, the formed curved surface of grid that the longitudinal and transverse plate-girder convex surface of punching block is formed is the inner surface of this covering, just on the three-dimension curved surface of drivers' cab covering inner surface with the curve form of this covering correspondence position.The matching degree of the formed curved surface of grid and covering inner surface is relevant with the spacing of grid.Spacing is more little, and matching degree is high more, but cost of manufacture is high more, otherwise spacing is big more, and cost of manufacture is low more, but matching degree is also low more, therefore, weigh the advantages and disadvantages, and chooses suitable mesh spacing.Combined steel pattern that need only be corresponding when making covering, and the applying situation that can observe covering and punching block by grid hole from the back side of punching block with it.The structure of its punching block is: the combined type punching block is corresponding one by one with the piecemeal of streamline locomotive cab three-dimensional curved surface covering, the punching block (as shown in Figure 1) of each piece covering correspondence is less at interval grid type slab and girder, comprise stringer board beam and transverse slat beam, its stringer board beam and transverse slat beam are made by the steel plate of certain width.On stringer board beam and transverse slat beam, leave corresponding stringer board socket and transverse slat socket respectively at regular intervals, then stringer board beam and transverse slat beam are assembled by socket, and the grafting assembly welding together, be combined into the slab and girder of the grid type that has latticed viewing hole by stringer board beam and transverse slat beam, the dividing plate convex surface of punching block grid is the shape that the curved surface of pairing covering inner surface matches, so the curved surface that grid forms can meet the shape of covering inner surface to greatest extent.
The invention has the advantages that: when the making of streamline locomotive cab three-dimensional curved surface covering, adopt the combined type punching block to replace whole wooden model, owing to form the dividing plate convex surface of punching block grid is to be cut by the electronic data of laser cutting machine by the covering inner surface, so, the curved surface that grid forms can meet the shape of covering inner surface to greatest extent, thereby improves the covering forming precision.Owing to adopt fabricated structure, can alleviate the labour intensity of operating personnel's pattern greatly again, raise labour efficiency.Simultaneously, owing to directly adopt the vertical and horizontal diaphragm assembly welding, greatly reduce the cost of manufacture of model, and the life-span of punching block is far above the life-span of wooden model.As seen, direct and indirect economic benefit is all considerable.
Description of drawings
Fig. 1 is a structural representation of the present invention;
Fig. 2 is the network schematic front view of punching block of the present invention;
Fig. 3 is the network diagrammatic top view of punching block of the present invention;
Fig. 4 is the network signal left view of punching block of the present invention;
Fig. 5 is the stringer board girder construction schematic diagram of punching block of the present invention;
Fig. 6 is the transverse slat girder construction schematic diagram of punching block of the present invention.
Among the figure: 1, covering; 2, punching block; 3, stringer board beam; 4, transverse slat beam; 5, grid; 6, grid hole; 7, stringer board beam socket; 8, transverse slat beam socket.
The specific embodiment
Accompanying drawing has provided one embodiment of the present of invention structural representation, and the invention will be further described below in conjunction with drawings and Examples.
From accompanying drawing as can be seen, the present invention is a streamlined locomotive cab covering, adopt streamline locomotive cab covering piecemeal production method, its characteristics are: the moulding of each piecemeal be by with the piecemeal of three-dimensional curved surface covering combined steel pattern one to one, and judge the moulding degree of covering by the combined steel grid hole is observed covering and punching block from the back side of punching block applying situation; Its combined steel is a grid type plate-girder visual structure, and the dividing plate convex surface of combined steel grid is to be formed by the curved surface electronic data cutting of laser cutting machine by the covering inner surface.The plate-girder visual structure is first interactively is determined plate-girder from the three-dimension curved surface of drivers' cab covering inner surface a three-dimensional position, the cloth postpone of all plate-girder to be determined, on the three-dimensional position of plate-girder, generate the CAD stereogram of plate-girder again, on the plate-girder stereogram, generate the CAD plane that satisfies processing request simultaneously.The making of plate-girder be from plate-girder CAD plane, extract outline and in outline data, by the machine-shaping of Numerical control cutting lathe.Plate-girder is left corresponding socket (as Fig. 5, Fig. 6) respectively at regular intervals in length and breadth.The assembly welding of then the longitudinal and transverse plate-girder of corresponding each piece covering being pegged graft respectively, and weld with its base respectively, promptly become the combined type punching block of corresponding this covering, the formed curved surface of grid that the longitudinal and transverse plate-girder convex surface of punching block is formed is the inner surface of this covering, just on the three-dimension curved surface of drivers' cab covering inner surface with the curve form of this covering correspondence position.The matching degree of the formed curved surface of grid and covering inner surface is relevant with the spacing of grid.Spacing is more little, and matching degree is high more, but cost of manufacture is high more, otherwise spacing is big more, and cost of manufacture is low more, but matching degree is also low more, therefore, weigh the advantages and disadvantages, and chooses suitable mesh spacing.Combined steel 2 patterns that need only be corresponding when making covering 1, and the applying situation that can observe covering 1 and combined steel 2 by grid hole 6 from the back side of combined steel 2 with it.The concrete structure of its combined steel 2 is: combined steel 2 is corresponding one by one with the piecemeal of streamline locomotive cab three-dimensional curved surface covering 1, the combined steel 2 (as shown in Figure 1) of each piece covering 1 correspondence is less at interval grid type slab and girder, comprise stringer board beam 3 and transverse slat beam 4, its stringer board beam 3 and transverse slat beam 4 are made by the steel plate of certain width.On stringer board beam and transverse slat beam, leave corresponding stringer board socket 7 and transverse slat socket 8 respectively at regular intervals, then stringer board beam 3 and transverse slat beam 4 stringer board socket 7 and the transverse slat socket 8 by correspondence assembled, be combined into the slab and girder of grid type, and the grafting assembly welding together, be combined into the grid type slab and girder that has latticed viewing hole by stringer board beam 3 and transverse slat beam 4, the dividing plate convex surface of combined steel 2 grids 5 is the shape that the curved surface of pairing covering inner surface matches, so the curved surface that grid 5 forms can meet the shape of covering inner surface to greatest extent.
Claims (5)
1, a kind of streamline locomotive cab three-dimensional curved surface covering forming method, adopt streamline locomotive cab piecemeal production method, it is characterized in that: the moulding of each piecemeal by with the combined steel pattern moulding one to one of piecemeal three-dimensional curved surface covering, and the applying situation of when moulding, observing covering and punching block from the back side of punching block by the combined steel grid hole; Its combined steel is a grid type plate-girder visual structure, and the dividing plate convex surface of combined steel grid is to be formed by the curved surface electronic data cutting of laser cutting machine by the covering inner surface.
2, streamline locomotive cab three-dimensional curved surface covering forming method as claimed in claim 1, it is characterized in that: described plate-girder visual structure is first interactively is determined plate-girder from the drivers' cab three-dimension curved surface a three-dimensional position, the cloth postpone of all plate-girder to be determined, on the three-dimensional position of plate-girder, generate the CAD stereogram of plate-girder again, on the plate-girder stereogram, generate the CAD plane that satisfies processing request simultaneously; The making of plate-girder be from plate-girder CAD plane, extract outline and in outline data, by the machine-shaping of Numerical control cutting lathe; By these in length and breadth the formed curved surface of grid formed of plate-girder convex surface be the inner surface of this covering; The assembly welding of at last the longitudinal and transverse plate-girder of corresponding each piece covering being pegged graft respectively, and respectively with its base welding, promptly become the combined type punching block of corresponding this covering; The formed curved surface of grid that the longitudinal and transverse plate-girder convex surface of punching block is formed is the inner surface of this covering, just on the drivers' cab three-dimension curved surface with the curve form of this covering correspondence position.
3, a kind of mould of method according to claim 1, comprise stringer board beam and transverse slat beam, it is characterized in that: stringer board beam and transverse slat beam are by making by the steel plate of certain width, be combined into the slab and girder of the grid type that has latticed viewing hole by stringer board beam and transverse slat beam, the dividing plate convex surface of punching block grid is the shape that the curved surface of pairing covering inner surface matches.
4, mould as claimed in claim 3, it is characterized in that: leave corresponding stringer board socket and transverse slat socket on stringer board beam and transverse slat beam respectively at regular intervals, stringer board beam and transverse slat beam stringer board socket and the transverse slat socket by correspondence pegged graft and is combined into the slab and girder of grid type.
5, mould as claimed in claim 3 is characterized in that: the stringer board beam is in the same place with transverse slat beam grafting assembly welding.
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNB2006100320912A CN100420545C (en) | 2006-08-16 | 2006-08-16 | Three-dimensional curved surface covering forming method and die for streamline locomotive cab |
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| CNB2006100320912A CN100420545C (en) | 2006-08-16 | 2006-08-16 | Three-dimensional curved surface covering forming method and die for streamline locomotive cab |
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| CN1907647A true CN1907647A (en) | 2007-02-07 |
| CN100420545C CN100420545C (en) | 2008-09-24 |
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| CN101973090A (en) * | 2010-10-08 | 2011-02-16 | 西安飞机工业（集团）有限责任公司 | Frame type soft fuel tank decomposable die |
| CN101992246A (en) * | 2010-09-13 | 2011-03-30 | 陈波 | Cold-pressed double-parabolic slab steel mould |
| CN102335811A (en) * | 2011-08-25 | 2012-02-01 | 沈阳飞机工业（集团）有限公司 | Method for manufacturing titanium-alloy sawtooth-shaped skin parts |
| 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 |
| CN103143892A (en) * | 2013-03-08 | 2013-06-12 | 长春轨道客车股份有限公司 | Forming method for vehicle head covering |
| CN104589674A (en) * | 2015-02-13 | 2015-05-06 | 哈尔滨新科锐工艺装备制造有限公司 | Low-cost simple mold of composite materials for airplanes and fast manufacturing method |
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| CN104768825A (en) * | 2012-11-14 | 2015-07-08 | 川崎重工业株式会社 | Curved plate for railroad vehicle structure, lead vehicle structure, and method for manufacturing curved plate for railroad vehicle structure |
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| CN101973090A (en) * | 2010-10-08 | 2011-02-16 | 西安飞机工业（集团）有限责任公司 | Frame type soft fuel tank decomposable die |
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