CN103624217B - Diesel engine front end box body forming tool and forming method of lubricating oil chamber sand core - Google Patents
Diesel engine front end box body forming tool and forming method of lubricating oil chamber sand core Download PDFInfo
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- CN103624217B CN103624217B CN201310665630.6A CN201310665630A CN103624217B CN 103624217 B CN103624217 B CN 103624217B CN 201310665630 A CN201310665630 A CN 201310665630A CN 103624217 B CN103624217 B CN 103624217B
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- forming frock
- base plate
- lubricating cavity
- transverse slat
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Abstract
The invention discloses a kind of front end casing lubricating cavity core forming frock, including middle core forming frock and final integral sand core forming frock, middle core forming frock includes rectangular frame and middle core base plate, final two pieces of longitudinal side plates of integral sand core forming frock, two pieces of end face transverse slats are spliced into rectangular frame, base plate is inlaid on the downside of rectangular frame by several piece locating piece, and middle transverse slat two ends are stuck in longitudinal side plate.Forming method comprises the following steps: 1) prefabricated middle core, and 2) middle core location, 3) assembled final integral sand core forming frock, 4) front end casing lubricating cavity core final molding.The present invention changes the split-type structural of diesel engine front end box body lubricating cavity core into monolithic construction, the lubricating cavity core length dimension and the squareness tolerance that make front end casing meet the requirements, improve the yield rate of diesel engine front end box body, facilitate moulding and join mold process.
Description
Technical field
The present invention relates to the forming frock of a kind of casting box model core, particularly to one for bavin
The core frock of oil machine front end casing lubricating cavity molding, further relates to the forming method of this core, belongs to casting die
Tool and Technology field.
Background technology
At present, develop, by crowd towards lightweight, high-power, modularity direction along with diesel engine new architecture
The integrated diesel engine front end box body of multifunctional unit presents that structure is complicated, the feature of thin-walled, especially
The lubricating oil cavity wall of diesel engine front end box body is thin, cavity geometry is complicated causes lubricating cavity core to make difficulty.Existing
Diesel engine front end box body lubricating cavity core use split-type structural, core is along being divided longitudinally into three sections of cores successively
Splicing, by being spliced into entirety through the long draw of three sections of cores.The lubricating cavity core of this splicing construction is long
Degree size and squareness tolerance are the most wayward, when front end casing machines, in often there is head end box body
Between two cavitys, wall thickness is through, the processing of external flanges mouth less than etc. problems, cause diesel engine front end box body
Scrappage is the highest, and production cost is greatly improved, and production efficiency is severely impacted.
Summary of the invention
It is an object of the invention to provide a kind of all-in-one-piece diesel engine front end box body lubricating cavity core forming frock,
The lubricating cavity core length dimension and the squareness tolerance that make front end casing meet the requirements, and improve diesel engine front end
The product qualified rate of case.
The present invention is achieved by the following technical programs:
A kind of front end casing lubricating cavity core forming frock, including core forming frock in the middle of separation-type and dismounting
Formula final integral sand core forming frock, in the middle of described separation-type core forming frock include Integral rectangular framework and
It is inlaid in the middle core base plate of Integral rectangular framework underside, described middle core base plate has and middle sand
Several abnormity counterbores that the superimposed core head shapes of core matches, are provided with base plate in the middle of the distance of several abnormity counterbores
Circular hole；Described dismountable final integral sand core forming frock includes base plate, longitudinal side plate of both sides, two ends
End face transverse slat and middle transverse slat, be shaped with inside described longitudinal side plate and front end casing lubricating cavity core longitudinal direction shape
Several raised lines that shape matches, two pieces of longitudinal side plates, two pieces of end face transverse slats are respectively by the of longitudinal side plate two ends
One horizontal draw-in groove is spliced into rectangular frame, and base plate is inlaid on the downside of rectangular frame by several piece locating piece, described
Rectangular frame two ends are connected by several securing member clampings passing across longitudinal side plate two ends respectively, middle transverse slat
Two ends are stuck in the second horizontal draw-in groove in the middle of two pieces of longitudinal side plate medial surface.
The purpose of the present invention can also be realized further by techniques below measure.
Aforesaid front end casing lubricating cavity core forming frock, wherein said middle transverse slat is L-shaped, L-shaped
Horizontal plate is resisted against on base plate, and the perpendicular plate of L-shaped is divided into several piece perpendicular plate piecemeal, and described several piece perpendicular plate divides
The rectangular vertical panel that block pieces together has and several irregularly-shaped holes of middle core matching form, at several abnormity
Being provided with middle transverse slat circular hole in the middle of the distance in hole, perpendicular plate two ends are stuck in the middle of two pieces of longitudinal side plate medial surface
In second horizontal draw-in groove.
Aforesaid front end casing lubricating cavity core forming frock, wherein said Integral rectangular framework one end is provided with
Plate, described upper plate side is resisted against on the upside of the end face transverse slat medial surface of correspondence.
The forming method of a kind of front end casing lubricating cavity core, comprises the following steps:
Round metal bars being inserted in the middle of separation-type in core forming frock, centre is vertically injected in round metal bars lower end
In base plate circular hole on core base plate, fill up core forming frock in the middle of separation-type with furan resin self curing sand
Cavity makes middle core；After described middle core forming and hardening, take out round metal bars, in the middle of separation-type
Core forming frock frock overturns 180 °, middle core self falling, and removes and spelled by several piece floor pack
The middle core base plate of dress, at middle core outer surface paint, completes middle core and makes；
2) core location in the middle of
Middle core is centrally positioned transverse slat and deviates from the side of upper plate side, the convex pipe of middle core side
In the middle of embedding in transverse slat circular hole, the middle transverse slat installing middle core is positioned on base plate, then by periphery
The steel pipe convex pipe horizontal through middle core of multiple steam vent it is covered with on face；
3) assembled dismountable final integral sand core forming frock
Two pieces of longitudinal side plates, two pieces of end face transverse slats are positioned on base plate, pass across longitudinal side plate by several
Two pieces of longitudinal side plates, two pieces of end face transverse slat clamping assembly are connected into rectangular frame, steel pipe by the securing member at two ends
Both ends of the surface bear against on end face transverse slat medial surface；
4) front end casing lubricating cavity core final molding
Furan resin self curing sand is inserted, at head end box in the cavity of dismountable final integral sand core forming frock
After body lubricating cavity core forming and hardening, dismounting rectangular frame, the perpendicular plate piecemeal of transverse slat between blocked breaking a good appetite suddenly appearing in a serious disease,
Take out front end casing lubricating cavity core, at front end casing lubricating cavity core outer surface paint, complete front end
The making of casing lubricating cavity core.
The forming method of aforesaid a kind of front end casing lubricating cavity core, wherein said round metal bars diameter is more than
Diameter of steel tube 2～3mm.
The front end casing lubricating cavity core forming frock of the present invention is by the diesel engine front end box body of existing three sections of cores
The split-type structural of lubricating cavity core changes monolithic construction into so that the lubricating cavity core length ruler of front end casing
Very little and squareness tolerance meets the requirements, and improves the yield rate of diesel engine front end box body, facilitates moulding and join
Mold process.The forming method of the front end casing lubricating cavity core of the present invention is by the middle of the casing lubricating cavity core of front end
Structure complicated part change first individually precasting in core forming frock in the middle of separation-type middle core into, so
After again centre core is positioned in dismountable final integral sand core forming frock, finally at final integral sand core
In forming frock, the furan resin self curing sand of middle core and filling is condensed into monoblock type front end casing lubricating oil
Chamber core, makes the integral sand core that structure is complicated, meet diesel engine front end box body structural requirement.
Advantages of the present invention and feature, by by the non-limitative illustration of preferred embodiment below carry out diagram and
Explain, these embodiments, be only used as example referring to the drawings and be given.
Accompanying drawing explanation
Fig. 1 is the front view of front end casing lubricating cavity core；
Fig. 2 is the A-A sectional view of Fig. 1；
Fig. 3 is the top view of core forming frock in the middle of separation-type of the present invention；
Fig. 4 is the B-B sectional view of Fig. 4；
Fig. 5 is the top view of dismountable of the present invention final integral sand core forming frock；
Fig. 6 is the C-C partial sectional view of Fig. 5.
Detailed description of the invention
The invention will be further described with embodiment below in conjunction with the accompanying drawings.
As depicted in figs. 1 and 2, the length of front end casing lubricating cavity core 1 reaches more than 1 meter, intermediate portion
The cavity shape of cross section divided is complicated, and prior art cannot make all-in-one-piece front end casing lubricating cavity core 1.
The present invention includes core forming frock 3 and dismountable final integral sand core forming frock 4 in the middle of separation-type,
As shown in Figure 3 and Figure 4, in the middle of separation-type, core forming frock 3 includes Integral rectangular framework 31 and is inlaid in
The middle core base plate 32 of Integral rectangular framework underside, described middle core base plate 32 has and middle sand
Several abnormity counterbores 321 that the superimposed core head shapes of core 11 matches, in the distance of several abnormity counterbores 321
Between be provided with base plate circular hole 322.Middle core base plate 32 may be used without the rectangle that polylith floor pack 323 is combined into
Structure.
As shown in Figure 5 and Figure 6, dismountable final integral sand core forming frock 4 includes base plate 41, both sides
Longitudinal side plate 42, the end face transverse slat 43 at two ends and middle transverse slat 44, with several outside longitudinal side plate 42
Perpendicular muscle 421, to improve its intensity.It is shaped with and front end casing lubricating cavity core longitudinal direction shape inside longitudinal side plate 42
Two raised lines 422 that shape matches, 42, two pieces of end face transverse slats 43 of two pieces of longitudinal side plates are respectively by longitudinal side plate
The first of 42 two ends laterally draw-in groove 423 is spliced into rectangular frame, and base plate 41 is embedding by several piece locating piece 411
Being contained on the downside of rectangular frame, rectangular frame two ends are by totally 4 fastening screws passing across longitudinal side plate two ends
Nut group 45 clamping connects.
Middle transverse slat 44 is L-shaped, the horizontal plate 441 of L-shaped against on base plate 41, the perpendicular plate 442 of L-shaped
Being divided into several piece perpendicular plate piecemeal, described several piece perpendicular plate piecemeal pieces together in rectangular perpendicular plate 442 and has
With 2 irregularly-shaped holes of middle core matching form, in the middle of the distance of 2 irregularly-shaped holes, it is provided with middle transverse slat circle
Hole 443, perpendicular plate 442 two ends are stuck in the second horizontal draw-in groove 424 in the middle of two pieces of longitudinal side plates 42.
Integral rectangular framework one end is provided with upper plate 46, and described upper plate 46 side is resisted against in the end face transverse slat 43 of correspondence
On the upside of side.
The forming method of the present invention, comprises the following steps:
1) prefabricated middle core 11
Diameter is inserted in the middle of separation-type in core forming frock 3 more than diameter of steel tube 2～3mm aluminium alloy bars,
Aluminium alloy bars lower end is injected in the base plate circular hole 322 on middle core base plate 32；Fill out with furan resin self curing sand
In the middle of full separation-type, the cavity of core forming frock 3 makes middle core 11；The molding of described middle core 11
After solidification, take out aluminium alloy bars, core forming frock in the middle of separation-type is overturn 180 °, middle core 11
Self falling, and remove the middle core base plate 32 assembled by several piece floor pack 323, at middle sand
Core 11 outer surface paint, completes middle core 11 and makes；
2) in the middle of, core 11 positions
Middle core 11 is centrally positioned transverse slat 44 and deviates from the side of upper plate 46 side, middle core
The convex pipe 111 of 11 sides embeds in middle transverse slat circular hole 443, will install the middle transverse slat of middle core 11
44 are positioned on base plate 41, then will be covered with the steel pipe 2 of multiple steam vent on outer peripheral face horizontal through centre
The convex pipe 111 of core 11, be supported on the steel pipe 2 in convex pipe 111 both can aerofluxus, front end casing can be improved again
The intensity of lubricating cavity core 1.
3) assembled dismountable final integral sand core forming frock
42, two pieces of end face transverse slats 43 of two pieces of longitudinal side plates are positioned on base plate 41, are passed across by 4
42, two pieces of end face transverse slats 43 of two pieces of longitudinal side plates are clamped assembled connection by the securing member at longitudinal side plate 42 two ends
Rectangular framework, steel pipe 2 both ends of the surface bear against on end face transverse slat 43 medial surface.
4) front end casing lubricating cavity core 1 final molding
Furan resin self curing sand is inserted, in front end in the cavity of dismountable final integral sand core forming frock 4
After casing lubricating cavity core forming and hardening, removing rectangular frame, between blocked breaking a good appetite suddenly appearing in a serious disease, the perpendicular plate of transverse slat 44 divides
Block, takes out front end casing lubricating cavity core, at front end casing lubricating cavity core 1 outer surface paint, complete
Become the making of front end casing lubricating cavity core 1.
In addition to the implementation, the present invention can also have other embodiments, all employing equivalents or equivalence
The technical scheme that conversion is formed, all falls within the protection domain of application claims.
Claims (4)
1. a diesel engine front end box body lubricating cavity core forming frock, it is characterised in that: include in separation-type
Between core forming frock and dismountable final integral sand core forming frock, core molding work in the middle of described separation-type
Dress includes Integral rectangular framework and is inlaid in the middle core base plate of Integral rectangular framework underside, described middle sand
Have the several abnormity counterbores matched with the superimposed core head shapes of middle core on core base plate, sink at several abnormity
Base plate circular hole it is provided with in the middle of the distance in hole；Described dismountable final integral sand core forming frock include base plate, two
Longitudinal side plate of side, the end face transverse slat at two ends and middle transverse slat, be shaped with and front end inside described longitudinal side plate
Several raised lines that casing lubricating cavity core longitudinal shape matches, two pieces of longitudinal side plates, two pieces of end face transverse slats are respectively
Being spliced into rectangular frame by the first horizontal draw-in groove at longitudinal side plate two ends, base plate is embedded in by several piece locating piece
On the downside of rectangular frame, described rectangular frame two ends are respectively by several fastenings passing across longitudinal side plate two ends
Part clamping connects, and middle transverse slat two ends are stuck in the second horizontal draw-in groove in the middle of two pieces of longitudinal side plate medial surface；
Described middle transverse slat is L-shaped, and the horizontal plate of L-shaped is resisted against on base plate, and it is vertical that the perpendicular plate of L-shaped is divided into several piece
Plate piecemeal, has in the rectangular vertical panel that described several piece perpendicular plate piecemeal pieces together and middle core matching form
Several irregularly-shaped holes, in the middle of the distance of several irregularly-shaped holes, be provided with middle transverse slat circular hole, perpendicular plate two ends are stuck in
In the second horizontal draw-in groove in the middle of two pieces of longitudinal side plate medial surface；Described Integral rectangular framework one end is provided with upper plate,
Described upper plate side is resisted against on the upside of the end face transverse slat medial surface of correspondence.
2. diesel engine front end box body lubricating cavity core forming frock as claimed in claim 1, it is characterised in that:
Described middle core base plate uses several piece floor pack assembled.
3. apply diesel engine front end box body lubricating cavity core forming frock as claimed in claim 1 to prepare for one kind
The method of diesel engine front end box body lubricating cavity core, it is characterised in that: comprise the following steps:
1) prefabricated middle core
Round metal bars being inserted in the middle of separation-type in core forming frock, centre is vertically injected in round metal bars lower end
In base plate circular hole on core base plate, fill up core forming frock in the middle of separation-type with furan resin self curing sand
Cavity makes middle core；After described middle core forming and hardening, take out round metal bars, in the middle of separation-type
Core forming frock overturns 180 °, middle core self falling, and removes by several piece floor pack assembled
Middle core base plate, at middle core outer surface paint, complete middle core and make；
2) core location in the middle of
Middle core is centrally positioned transverse slat and deviates from the side of upper plate side, the convex pipe of middle core side
In the middle of embedding in transverse slat circular hole, the middle transverse slat installing middle core is positioned on base plate, then by periphery
The steel pipe convex pipe horizontal through middle core of multiple steam vent it is covered with on face；
3) assembled dismountable final integral sand core forming frock
Two pieces of longitudinal side plates, two pieces of end face transverse slats are positioned on base plate, pass across longitudinal side plate by several
Two pieces of longitudinal side plates, two pieces of end face transverse slat clamping assembly are connected into rectangular frame, steel pipe by the securing member at two ends
Both ends of the surface bear against on end face transverse slat medial surface；
4) front end casing lubricating cavity core final molding
Furan resin self curing sand is inserted, at head end box in the cavity of dismountable final integral sand core forming frock
After body lubricating cavity core forming and hardening, dismounting rectangular frame, the perpendicular plate piecemeal of transverse slat between blocked breaking a good appetite suddenly appearing in a serious disease,
Take out front end casing lubricating cavity core, at front end casing lubricating cavity core outer surface paint, complete front end
The making of casing lubricating cavity core.
4. the method preparing diesel engine front end box body lubricating cavity core as claimed in claim 3, its feature exists
In, described round metal bars diameter is more than diameter of steel tube 2～3mm.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201310665630.6A CN103624217B (en) | 2013-12-11 | 2013-12-11 | Diesel engine front end box body forming tool and forming method of lubricating oil chamber sand core |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201310665630.6A CN103624217B (en) | 2013-12-11 | 2013-12-11 | Diesel engine front end box body forming tool and forming method of lubricating oil chamber sand core |
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| Publication Number | Publication Date |
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| CN103624217A CN103624217A (en) | 2014-03-12 |
| CN103624217B true CN103624217B (en) | 2016-08-17 |
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| CN201310665630.6A Active CN103624217B (en) | 2013-12-11 | 2013-12-11 | Diesel engine front end box body forming tool and forming method of lubricating oil chamber sand core |
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Families Citing this family (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| FR3065662B1 (en) * | 2017-04-28 | 2020-11-13 | Safran Aircraft Engines | CORE FOR THE MANUFACTURE OF A TURBOMACHINE VANE |
| CN112846091A (en) * | 2019-11-27 | 2021-05-28 | 尼玛克股份有限公司 | Metal casting with cores |
| CN114871386B (en) * | 2022-07-07 | 2022-10-28 | 中国航发北京航空材料研究院 | Tool for reverse-inclination resin sand core combination and combination assembly method thereof |
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| CN201482922U (en) * | 2009-08-05 | 2010-05-26 | 广西玉柴机器股份有限公司 | Structure for casting large-sized front end box of ship engine |
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| CN203081532U (en) * | 2012-12-10 | 2013-07-24 | 重庆普什机械有限责任公司 | Diesel engine auxiliary supporting slide oil cavity |
| CN203649323U (en) * | 2013-12-11 | 2014-06-18 | 中船动力有限公司 | Diesel engine front end box lubricating oil cavity sand core forming tool |
Family Cites Families (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| FR2964702B1 (en) * | 2010-09-09 | 2015-08-07 | Renault Sas | INTERNAL COMBUSTION ENGINE CYLINDER CASTER, METHOD OF MANUFACTURING SUCH CARTER, AND CASING MOLD FOR CARRYING OUT SAID METHOD |
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Patent Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| GB2469825A (en) * | 2009-04-29 | 2010-11-03 | Gm Global Tech Operations Inc | I.c. engine cylinder head combustion chamber cooling passage arrangement and casting mould |
| CN201482922U (en) * | 2009-08-05 | 2010-05-26 | 广西玉柴机器股份有限公司 | Structure for casting large-sized front end box of ship engine |
| CN102294440A (en) * | 2011-08-30 | 2011-12-28 | 南车戚墅堰机车有限公司 | Method for fixing deep-drawn pipeline core for casting large-scale machine body |
| CN202427893U (en) * | 2012-01-06 | 2012-09-12 | 广西玉柴机器股份有限公司 | Mould of main oil duct sand core of large diesel engine |
| CN203081532U (en) * | 2012-12-10 | 2013-07-24 | 重庆普什机械有限责任公司 | Diesel engine auxiliary supporting slide oil cavity |
| CN203649323U (en) * | 2013-12-11 | 2014-06-18 | 中船动力有限公司 | Diesel engine front end box lubricating oil cavity sand core forming tool |
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| CN103624217A (en) | 2014-03-12 |
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Address after: 212211 No. 402, Changjiang Road, Zhenjiang City, Jiangsu Province Patentee after: China Shipbuilding Power Zhenjiang Co.,Ltd. Address before: 402 Changjiang Road, Runzhou District, Zhenjiang City, Jiangsu Province Patentee before: CSSC MARINE POWER Co.,Ltd. |