CN101559477A - Method for positioning large core - Google Patents
Method for positioning large core Download PDFInfo
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- CN101559477A CN101559477A CNA2009100669537A CN200910066953A CN101559477A CN 101559477 A CN101559477 A CN 101559477A CN A2009100669537 A CNA2009100669537 A CN A2009100669537A CN 200910066953 A CN200910066953 A CN 200910066953A CN 101559477 A CN101559477 A CN 101559477A
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- core print
- new
- print seat
- new core
- seat
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Abstract
The invention relates to a method for positioning a large core, which is characterized in that: the core is provided with a new core print seat of which the upper part is provided with through holes with inclination; a new core print is designed on a lower sand mold; the new core print seat on the large core and the new core print on the lower sand mold are matched and positioned; and before the mold is assembled, the through holes on the upper parts of the new core print seat are filled with old sand lumps. When the core print seat on the core print and the core print on a die cavity are matched, the matching process of the core print seat and the core print can be clearly observed, and the method has simple and convenient operation, accurate and reliable positioning and easy realization; and the through holes on the upper part of the core print seat can be filled with the old sand lumps, new core sand is saved, the production cost is greatly reduced, and the finished product ratio of cast is improved.
Description
Technical field
The present invention relates to a kind of method for positioning large core, belong to the technical field of casting technique.
Background technology
Generally the die cavity of foundry goods inside all forms by fuse, is placed in the fuse in the casting mold, generally be to support by the core print (being called core print traditionally) of fuse itself, and the position of fuse in casting mold also is to locate by core print.In the casting mold die cavity, lay in the process of fuse, by around the visual core print with the big wisp core print in core print seat (this core print seat is called core print seat traditionally on die cavity) gap under in core print seat.As seen core print has effects such as support, location and guiding.So core print has a significant impact the dimensional accuracy and the surface quality of each one of core cavity.
If a kind of large core top is big bottom less (hereinafter to be referred as large core), in the casting mold die cavity, lay the size of can't see in the large core process around the core print with the core print seat gap, this just be difficult to exactly under the core print in core print seat, core print, drop cause swiping.As seen there is wretched insufficiency in the positioning process that matches with core print seat of core print traditionally concerning large core.If cleaning is unclean before the mould assembling, heavy castings can produce defectives such as sand holes, exoncoma.
Summary of the invention
The object of the present invention is to provide a kind of method for positioning large core, in order to overcome the deficiency of above-mentioned large core core print, the present invention guarantees the core cavity dimensional accuracy and improves casting yield greatly not designing core print on the large core but core print seat location new technology by designing on the fuse.
Technical scheme of the present invention is achieved in that method for positioning large core, it is characterized in that: be provided with new core print seat on fuse, new core print seat top is provided with the through hole of band gradient, is designing new core print on the sand mold down; New core print seat on the large core cooperates the location with new core print on the following sand mold;
Its concrete localization method is as follows: when laying fuse in casting mold, at first observe around the new core print seat size with new clearance by the through hole of new core print seat top, newer core print seat is enclosed within on the new core print; Before the mould assembling, filling old sand piece in the through hole above the new core print seat.
The technological parameter of large core is:
The new core print seat size of D-, D/D
1=0.4～0.6;
The new core print seat height of h-, h=40～140mm;
h
1-Xin core print height, h
1=h+20～60mm;
The new core print seat gradient of a-, a=10 °～15 °;
a
1-through hole gradient, a
1=3 °～20 °;
The new core print seat of s-and new clearance, s=1～4mm;
R-sand catcher radius, R=10～30mm.
Good effect of the present invention is to be used for fuse upper dimension D
0Greater than fuse lower dimension D
1Large core, the core print seat on the core print can clearly be observed core print seat, core print engagement process when core print on the die cavity matches, simple to operation, accurate positioning is reliable, realizes easily; The old sand piece can be added in through hole above core print seat, saves new core sand, reduces production costs greatly, improves casting yield.
Description of drawings
Fig. 1 is the new core print seat of the large core location schematic diagram that matches with new core print on the play sand mold, and wherein 1 is fuse, and 2 is the fuse through hole, and 3 is last sand mold, and 4 is time sand mold, and 5 is new core print seat, and 6 is new core print.
The specific embodiment
The present invention will be further described below in conjunction with drawings and Examples:
Embodiment 1:
As shown in Figure 1, being provided with on the fuse of laying in casting mold 1 highly is that h=40mm, gradient are a=10 ° new core print seat 5, and it is a that new core print seat 5 tops are provided with gradient
1=3 ° through hole 2, new core print seat is of a size of D=0.4D
1, design height is h on following sand mold 4
1The new core print 6 of=60mm; New core print seat 5 on the large core cooperates the location with new core print 6 on the following sand mold 4, observes around the new core print seat 5 size with new core print 6 gaps by the through hole 2 of new core print seat top during installation, newer core print seat is enclosed within on the new core print; New core print seat 5 is s=1mm with the gap of new core print 6, and the sand catcher R=10mm of new core print 6 sides can play the effect of collection sand.Before last sand mold 3 and following sand mold 4 mould assembling, with 2 li filling old sands of through hole piece of new core print seat 5 tops.
During use, at first make the large core that has new core print seat 5 and have sand mold 4 under the heavy castings of new core print 6, laying large core 1 in the sand mold 4 down then.In the process of laying fuse 1, can observe new core print seat 5 by the through hole 2 of new core print seat 5 tops is enclosed within a new core print seat 5 on the new core print 6 with the size in new core print 6 gaps all around, last sand mold 3 and play sand mold 4 before mould assembling, new 2 li filling old sands of through hole piece of core print seat 5 tops.
Embodiment 2:
Being provided with on the fuse of laying in casting mold 1 highly is that h=140mm, gradient are a=15 ° new core print seat 5, and it is a that new core print seat 5 tops are provided with gradient
1=20 ° through hole 2, new core print seat is of a size of D=0.6D
1, design height is h on following sand mold 4
1The new core print 6 of=100mm; New core print seat 5 on the large core cooperates the location with new core print 6 on the following sand mold 4, observes around the new core print seat 5 size with new core print 6 gaps by the through hole 2 of new core print seat top during installation, newer core print seat is enclosed within on the new core print; New core print seat 5 is s=4mm with the gap of new core print 6, and the sand catcher R=30mm of new core print 6 sides can play the effect of collection sand.Before last sand mold 3 and following sand mold 4 mould assembling, with 2 li filling old sands of through hole piece of new core print seat 5 tops.
Embodiment 3:
Being provided with on the fuse of laying in casting mold 1 highly is that h=80mm, gradient are a=13 ° new core print seat 5, and it is a that new core print seat 5 tops are provided with gradient
1=10 ° through hole 2, new core print seat is of a size of D=0.5D
1, design height is h on following sand mold 4
1The new core print 6 of=70mm; New core print seat 5 on the large core cooperates the location with new core print 6 on the following sand mold 4, observes around the new core print seat 5 size with new core print 6 gaps by the through hole 2 of new core print seat top during installation, newer core print seat is enclosed within on the new core print; New core print seat 5 is s=2.5mm with the gap of new core print 6, and the sand catcher R=20mm of new core print 6 sides can play the effect of collection sand.Before last sand mold 3 and following sand mold 4 mould assembling, with 2 li filling old sands of through hole piece of new core print seat 5 tops.
Claims (3)
1, method for positioning large core is characterized in that: be provided with new core print seat (5) on large core (1), new core print seat (5) top is provided with the through hole (2) of band gradient, goes up design new core print (6) at following sand mold (4); New core print seat (5) on the large core cooperates the location with new core print (6) on the following sand mold (4).
2, a kind of method for positioning large core according to claim 1, it is characterized in that described concrete localization method is as follows: when in casting mold, laying fuse (1), at first by the through hole (2) of new core print seat (5) top observe new core print seat (5) all around with new core print (6) gap length S, newer core print seat (5) is enclosed within on the new core print (6); Before last sand mold (3) and following sand mold (4) mould assembling, through hole (2) the lining filling old sand piece in new core print seat (5) top.
3, a kind of method for positioning large core according to claim 1 is characterized in that the technological parameter of described large core is:
The new core print seat size of D-, D/D
1=0.4～0.6;
The new core print seat height of h-, h=40～140mm;
h
1-Xin core print height, h
1=h+20～60mm;
α-Xin core print seat gradient, α=10 °～15 °;
α
1-through hole gradient, α
1=3 °～20 °;
The new core print seat of s-and new clearance, s=1～4mm;
R-sand catcher radius, R=10～30mm.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNA2009100669537A CN101559477A (en) | 2009-05-15 | 2009-05-15 | Method for positioning large core |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNA2009100669537A CN101559477A (en) | 2009-05-15 | 2009-05-15 | Method for positioning large core |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN101559477A true CN101559477A (en) | 2009-10-21 |
Family
ID=41218545
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CNA2009100669537A Pending CN101559477A (en) | 2009-05-15 | 2009-05-15 | Method for positioning large core |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN101559477A (en) |
Cited By (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102699281A (en) * | 2012-07-02 | 2012-10-03 | 苏州明志科技有限公司 | Accurate positioning structure for core print on vertical sand core |
| CN103182473A (en) * | 2011-12-27 | 2013-07-03 | 南方汇通股份有限公司 | Method for locating characteristic process holes of sand-mould sand core by laser scanning and metal scanning location block |
| CN104889335A (en) * | 2015-06-03 | 2015-09-09 | 天津市航宇金属加工有限公司 | Metal casting mould capable of fixing sand core accurately |
| CN103182473B (en) * | 2011-12-27 | 2016-12-14 | 中车贵阳车辆有限公司 | The method of location, laser scanning sand mould feature process hole and metal scan locating piece |
| CN110814285A (en) * | 2019-12-16 | 2020-02-21 | 中国重汽集团济南动力有限公司 | Cylinder cover manufacturing mold based on green sand process |
| CN113020546A (en) * | 2021-03-12 | 2021-06-25 | 贵州航天风华精密设备有限公司 | Positioning structure and method for special-shaped structure casting mold |
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| CN200998762Y (en) * | 2006-12-31 | 2008-01-02 | 湖南江麓机械集团有限公司 | Positioning device for core casting aluminum alloy greensand mold |
| CN101199986A (en) * | 2006-12-15 | 2008-06-18 | 广西玉柴机器股份有限公司 | Fixation method of cylinder head airway core |
| CN101269402A (en) * | 2007-03-22 | 2008-09-24 | 江苏常动机械有限公司 | Engine cavity cooling core |
| CN101406931A (en) * | 2008-11-14 | 2009-04-15 | 齐齐哈尔轨道交通装备有限责任公司 | Method for casting and forming middle cross-bracing two-axle bogie adapter and manufacturing technique |
| CN101417326A (en) * | 2008-11-21 | 2009-04-29 | 程金印 | Casting method of automobile brake drum and mold |
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2009
- 2009-05-15 CN CNA2009100669537A patent/CN101559477A/en active Pending
Patent Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101199986A (en) * | 2006-12-15 | 2008-06-18 | 广西玉柴机器股份有限公司 | Fixation method of cylinder head airway core |
| CN200998762Y (en) * | 2006-12-31 | 2008-01-02 | 湖南江麓机械集团有限公司 | Positioning device for core casting aluminum alloy greensand mold |
| CN101269402A (en) * | 2007-03-22 | 2008-09-24 | 江苏常动机械有限公司 | Engine cavity cooling core |
| CN101406931A (en) * | 2008-11-14 | 2009-04-15 | 齐齐哈尔轨道交通装备有限责任公司 | Method for casting and forming middle cross-bracing two-axle bogie adapter and manufacturing technique |
| CN101417326A (en) * | 2008-11-21 | 2009-04-29 | 程金印 | Casting method of automobile brake drum and mold |
Cited By (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103182473A (en) * | 2011-12-27 | 2013-07-03 | 南方汇通股份有限公司 | Method for locating characteristic process holes of sand-mould sand core by laser scanning and metal scanning location block |
| CN103182473B (en) * | 2011-12-27 | 2016-12-14 | 中车贵阳车辆有限公司 | The method of location, laser scanning sand mould feature process hole and metal scan locating piece |
| CN102699281A (en) * | 2012-07-02 | 2012-10-03 | 苏州明志科技有限公司 | Accurate positioning structure for core print on vertical sand core |
| CN102699281B (en) * | 2012-07-02 | 2014-03-05 | 苏州明志科技有限公司 | Accurate positioning structure for core print on vertical sand core |
| CN104889335A (en) * | 2015-06-03 | 2015-09-09 | 天津市航宇金属加工有限公司 | Metal casting mould capable of fixing sand core accurately |
| CN110814285A (en) * | 2019-12-16 | 2020-02-21 | 中国重汽集团济南动力有限公司 | Cylinder cover manufacturing mold based on green sand process |
| CN113020546A (en) * | 2021-03-12 | 2021-06-25 | 贵州航天风华精密设备有限公司 | Positioning structure and method for special-shaped structure casting mold |
| CN113020546B (en) * | 2021-03-12 | 2023-02-28 | 贵州航天风华精密设备有限公司 | Positioning structure and method for special-shaped structure casting mold |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C06 | Publication | ||
| PB01 | Publication | ||
| ASS | Succession or assignment of patent right |
Owner name: CHINA FAW CO., LTD. Free format text: FORMER OWNER: CHINESE AUTO GROUP CO NO.1 Effective date: 20120104 |
|
| C41 | Transfer of patent application or patent right or utility model | ||
| TA01 | Transfer of patent application right |
Effective date of registration: 20120104 Address after: 130011 Changchun Province, West New Economic and Technological Development Zone, Dongfeng Street, No. 2259, No. Applicant after: China FAW Group Corporation Address before: 130011 Dongfeng Street, Jilin, Changchun, No. 2259 Applicant before: China FAW Group Corporation |
|
| C10 | Entry into substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| C02 | Deemed withdrawal of patent application after publication (patent law 2001) | ||
| WD01 | Invention patent application deemed withdrawn after publication |
Application publication date: 20091021 |