CN202683957U - Frame-type sand core positioning structure - Google Patents
Frame-type sand core positioning structure Download PDFInfo
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- CN202683957U CN202683957U CN 201220352919 CN201220352919U CN202683957U CN 202683957 U CN202683957 U CN 202683957U CN 201220352919 CN201220352919 CN 201220352919 CN 201220352919 U CN201220352919 U CN 201220352919U CN 202683957 U CN202683957 U CN 202683957U
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Abstract
The utility model discloses a frame-type sand core positioning structure, and aims to provide the frame-type sand core positioning structure which has the characteristics that the positioning of sand cores is facilitated, the positioning efficiency is high, and the relative positions of the sand cores are positioned accurately and stably. The frame-type sand core positioning structure comprises a first sand core arranged in an upper mold, a second sand core arranged in a lower mold, and a third sand core arranged on a lower mold parting surface; the first sand core, the second sand core and the third sand core are connected into a whole through a connecting frame; the connecting parts of the sand cores and the connecting frame are the parts, in which casting cavity outlets are formed, of the sand cores; and the side surfaces, opposite to the sand cores, of the connecting frame form one part of the side surface of the inner wall of the mold cavity.
Description
Technical field
The utility model relates to a kind of sand core positioning structure, is specifically related to a kind of framework type sand core positioning structure that is applied to have the cast product of two or more separate die cavities.
Background technology
In sand casting process, core is the vitals that forms the foundry goods die cavity.Core has the product department that forms product usually, and is arranged on core one end for the location division that cooperates with mould.For the cast product with a plurality of separate die cavities, namely mutually be not communicated with between each the foundry goods die cavity in the foundry goods, as described in Figure 4, this foundry goods 19 has three separate foundry goods die cavities 20, and each foundry goods die cavity all only has an outlet 21 to be in communication with the outside.This class has the foundry goods of a plurality of separate foundry goods die cavities, needs corresponding a plurality of separate cores that arrange in sand casting process.As shown in Figure 3, this mould is by three separate cores, and wherein the first core 4 is positioned in the patrix, and the second core 5 is positioned in the counterdie 2, and the 3rd core 6 is positioned on the die joint.Because the 3rd core 6 is positioned on the die joint, the location of the 3rd core is reliable behind matched moulds; But position because the second core 5 needs to insert in the counterdie 2, thereby in casting process, easily float; The 3rd core 6 needs to position in the insertion patrix, thereby easily floats in casting process; In order to make the location that each core can be more stable; The method that adopts at present usually arranges through hole in the location division of each core as shown in Figure 3, and on mould the corresponding locating hole that arranges; Before the mould matched moulds, first core just is positioned on the mould, insert in the through hole of locating hole and core location division by pin 18 again, core is fixed on the mould; Then in matched moulds, cast.At present this class has the mould of a plurality of independent cores, because each core is separate, and each core location-independent is on mould, and this is not only so that the core positioning action is loaded down with trivial details; And the relative position between each core is difficult to determine, easily produces deviations, dislocation, so that shrink, cut etc. appear in cast article is bad; Especially when all having core in the upper die and lower die, because before the mould matched moulds, the operator can't determine whether the relative position of the core in patrix and the counterdie is accurate, as shown in Figure 3, can't determine before matched moulds whether the relative position between the first core and the second core is accurate, this is so that easily generation deviations, dislocation between each core causes the disqualification rate of the cast article after matched moulds is poured into a mould to improve greatly.
The utility model content
The purpose of this utility model is the mould that has a plurality of independent cores in order to overcome present this class, because each core location-independent, not only so that the core positioning action is loaded down with trivial details; And easily produce deviations, dislocation between each core, so that the high problem of cast article disqualification rate; Provide that a kind of core location is convenient, location efficiency is high, the Relatively orientation of each core accurately, stable, but the framework type sand core positioning structure of Effective Raise cast product qualification rate.
The technical solution of the utility model is:
A kind of framework type sand core positioning structure is provided with the first core in the patrix, be provided with the second core in the counterdie, and the counterdie die joint is provided with the 3rd core; Described first, second, and third core is connected as a single entity by connecting framework, and each core is the position that forms the outlet of foundry goods die cavity on the core with the connecting portion that is connected framework; The side relative with each core consists of the part of wall of die cavity side on the described connection framework.The framework type sand core positioning structure of this programme is with some separate cores, by the method along the cast outer surface framework, is integrated into each core as a whole; Namely by connecting framework each core is connected as a single entity, and connects the part that side relative with each core on the framework consists of the wall of die cavity side.Owing to connecting the location structure that framework itself can be used as core, not only can easily each core be positioned on the mould by connecting framework; And only need to carry out one-time positioning by connecting framework, can with each core location, when having avoided original each core location-independent, need position each core respectively; Can reduce greatly to produce accumulated error in each core position fixing process, and improve location efficiency.Owing to connecting the part that side relative with each core on the framework consists of the wall of die cavity side, namely connecting framework along the outer surface framework of cast product; This so that each core by after connecting framework and being positioned at counterdie, upper and lower mould is matched moulds directly.On the other hand, because each core is as a whole, the Relatively orientation behind each core location is accurate, stable like this, can not produce dislocation, skew; Simultaneously before the mould matched moulds, the operator can confirm laying state and the position of each core, guarantees accurate positioning, so just can not cause behind the matched moulds and produce deviation between each core, causes the cast article after matched moulds is poured into a mould defective; But Effective Raise cast article qualification rate, raising casting quality.
As preferably, connect the scope of ratio: H1/H2 between the maximum ga(u)ge H1 that forms between the framework two sides relative with core and the minimum thickness H2 between 1 to 3.1.
As preferably, the first core and the second core and mold parting surface are perpendicular, described connection framework comprises and is arranged on the first framework that is the L font between the first core and the 3rd core, be arranged on the second framework that is the L font between the second core and the 3rd core, be arranged on upper round platform and the inverted lower round platform of the first core and the second core end, and be arranged on the cylinder of the 3rd core end; Be connected by a contiguous block respectively between the two ends of described the first framework and corresponding upper round platform and the cylindrical side, be connected by a contiguous block respectively between the two ends of the second framework and corresponding lower round platform and the cylindrical side.The upper round platform of the connection framework of this programme, inverted lower round platform and cylinder can improve the position stability, the reliability that connect framework.
As preferably, edge, upper round platform lower surface is positioned at the outside of the first core side, and this lower surface consists of the part of wall of die cavity side; Edge, lower round platform upper surface is positioned at the outside of the second core side, and this upper surface consists of the part of wall of die cavity side; The cylinder end face edge that is connected with the 3rd core is positioned at the outside of the 3rd core side, and this end face consists of the part of wall of die cavity side.The upper round platform lower surface of this programme consists of the part of wall of die cavity side, and this is conducive to the formation of the formed foundry goods die cavity of the first core exit end face.Lower round platform upper surface consists of the part of wall of die cavity side; This is conducive to the formation of the formed foundry goods die cavity of the second core exit end face.The cylinder end face consists of the part of wall of die cavity side; This is conducive to the formation of the formed foundry goods die cavity of the 3rd core exit end face.
As preferably, with the contiguous block that upper round platform links to each other, its side relative with the first core flushes with upper round platform lower surface; With the contiguous block that lower round platform links to each other, its side relative with the second core flushes with lower round platform upper surface.
As preferably, the cylinder side is provided with locating piece and locating piece is located on the counterdie die joint; The rectangular bulk of locating piece.Locating piece is located on the counterdie die joint, and the connection framework is positioned on the counterdie die joint; Be convenient to connect the positioning action convenience of framework and each core.
As preferably, on the wall of die cavity side of upper and lower mould and mold parting surface be provided with groove for accommodating connection framework.
The beneficial effects of the utility model are: have that core location is convenient, location efficiency is high, the characteristics that the Relatively orientation of each core is accurate, stable, but and the qualification rate of Effective Raise cast product and quality.
Description of drawings
Fig. 1 is a kind of structural representation of a kind of framework type sand core positioning structure of the present utility model.
Fig. 2 is the connection framework of a kind of framework type sand core positioning structure of the present utility model and a kind of syndeton schematic diagram of core.
Fig. 3 is a kind of mould sand core positioning structure schematic diagram of prior art.
Fig. 4 is a kind of cross-sectional view of foundry goods.
Among the figure: patrix 1, counterdie 2, counterdie die joint 3, the first core 4, the second core 5, the 3rd core 6, connection framework 7, mold cavity 8, groove 9, locating piece 11, the first framework 12, the second framework 13, upper round platform 14, lower round platform 15, cylinder 16, contiguous block 17, pin 18, foundry goods 19, foundry goods die cavity 20, outlet 21.
The specific embodiment
Below in conjunction with accompanying drawing and the specific embodiment the utility model is described in further detail:
As shown in Figure 1 and Figure 2, a kind of framework type sand core positioning structure is provided with the first core 4 in the patrix 1, be provided with the second core 5 in the counterdie, and the counterdie die joint is provided with the 3rd core 6.The first core 4 and the second core 5 vertically arrange, and mold parting surface is horizontally disposed with; The first core 4 and the second core 5 are perpendicular with mold parting surface.First, second, and third core is connected as a single entity by connecting framework 7, and each core is the position that forms foundry goods die cavity outlet 21 on the core with the connecting portion that is connected framework 7.Connect the scope of ratio: H1/H2 between the maximum ga(u)ge H1 that forms between framework 7 two sides relative with each core and the minimum thickness H2 between 1 to 3.1.The side A relative with each core consists of the part of the mold cavity 8 inwall sides of upper and lower mould on the connection framework 7.
As shown in Figure 2, connecting framework 7 comprises and is arranged on the first framework 12 that is the L font between the first core 4 and the 3rd core 6, be arranged on the second framework 13 that is the L font between the second core 5 and the 3rd core 6, be arranged on upper round platform 14 and the inverted lower round platform 15 of the first core 4 and the second core 5 ends, and be arranged on the cylinder 16 of the 3rd core 6 ends.Be connected by a contiguous block 17 respectively between the side of the two ends of the first framework 12 and corresponding upper round platform 14 and cylinder 16.Be connected by a contiguous block 17 respectively between the side of the two ends of the second framework 13 and corresponding lower round platform 15 and cylinder 15.Edge, upper round platform 14 lower surface is positioned at the outside of the first core 4 sides, and this lower surface consists of the part of mold cavity 8 inwall sides.With the contiguous block 17 that upper round platform 14 links to each other, its side relative with the first core 4 flushes with upper round platform 14 lower surfaces.Edge, lower round platform 15 upper surface is positioned at the outside of the second core 5 sides, and this upper surface consists of the part of mold cavity 8 inwall sides.With the contiguous block 17 that lower round platform 15 links to each other, its side relative with the second core 5 flushes with lower round platform 15 upper surfaces.Cylinder 16 end face edge that are connected with the 3rd core 6 are positioned at the outside of the 3rd core 6 sides, and this end face consists of the part of mold cavity 8 inwall sides.The contiguous block 17 that links to each other with cylinder 6 consists of the end face of mold cavity 8 inwall sides on the side that it is relative with the 3rd core 6 and the cylinder 6.Cylinder 6 sides are provided with locating piece 11, locating piece 11 rectangular bulks.Locating piece 11 is located on the counterdie die joint 3.
On the mold cavity 8 inwall sides of upper and lower mould and mold parting surface be provided with groove 9 for accommodating connection framework 7.The groove depth of groove 9 just with is connected framework 7 and cooperates, make connect framework and place in the groove after the whole groove of lucky filling.
As shown in Figure 1, the locating piece 11 that connection framework 7 of the present utility model passes through will connect framework 7 and be positioned on the counterdie die joint 3, and then with each core location; And the connection framework 7 that is positioned at counterdie 2 will be contained in the groove of the wall of die cavity side of counterdie, make side A relative with each core on the connection framework 7 in the counterdie 2 consist of the part of the wall of die cavity side of counterdie.Then, upper and lower mould matched moulds; Behind upper and lower mould matched moulds, the connection framework 7 that is positioned at patrix 1 also will be contained in the groove of the wall of die cavity side of patrix, make side A relative with each core on the connection framework in the patrix consist of the part of the wall of die cavity side of patrix.
Framework type sand core positioning structure of the present utility model is by connecting framework 7 each separate core to be connected as a single entity, connect framework 7 along the outer surface extension framework of cast product, namely connect the part that side A relative with each core on the framework 7 consists of the wall of die cavity side.As shown in Figure 1, framework type sand core positioning structure of the present utility model can be positioned at each core on the mould by connecting framework 7, and only need to carry out one-time positioning to connecting framework 7, can be with each core location; And as shown in Figure 3, the sand core positioning structure by commonly used then needs respectively each core to be positioned by pin 18, need to carry out altogether the location three times; Thereby framework type sand core positioning structure of the present utility model can reduce to produce accumulated error in each core position fixing process greatly.On the other hand, because each core holds together by connecting framework, the Relatively orientation behind each core location is accurate, stable like this, can not produce dislocation, skew; Simultaneously before the mould matched moulds, the operator can confirm laying state and the position of each core, guarantees accurate positioning, but thereby Effective Raise cast article qualification rate, improves casting quality.
Claims (7)
1. a framework type sand core positioning structure is characterized in that, is provided with the first core (4) in the patrix, is provided with the second core (5) in the counterdie, and the counterdie die joint is provided with the 3rd core (6); Described first, second, and third core is connected as a single entity by connecting framework (7), and each core is the position that forms the outlet of foundry goods die cavity on the core with the connecting portion that is connected framework (7); The upper side relative with each core of described connection framework (7) consists of the part of mold cavity (8) inwall side.
2. a kind of framework type sand core positioning structure according to claim 1 is characterized in that, the scope of ratio: H1/H2 is between 1 to 3.1 between the maximum ga(u)ge H1 that forms between the described connection framework two sides relative with core and the minimum thickness H2.
3. a kind of framework type sand core positioning structure according to claim 1, it is characterized in that, described the first core (4) and the second core (5) are perpendicular with mold parting surface, described connection framework (7) comprises and is arranged on the first framework (12) that is the L font between the first core (4) and the 3rd core (6), be arranged on the second framework (13) that is the L font between the second core (5) and the 3rd core (6), be arranged on upper round platform (14) and the inverted lower round platform (15) of the first core (4) and the second core (5) end, and be arranged on the cylinder (16) of the 3rd core (6) end; Be connected by a contiguous block (17) respectively between the side of the two ends of described the first framework (12) and corresponding upper round platform (14) and cylinder (16), be connected by a contiguous block (17) respectively between the side of the two ends of the second framework (13) and corresponding lower round platform (15) and cylinder (16).
4. a kind of framework type sand core positioning structure according to claim 3 is characterized in that, upper round platform (14) edge, lower surface is positioned at the outside of the first core (4) side, and this lower surface consists of the part of mold cavity (8) inwall side; Lower round platform (15) edge, upper surface is positioned at the outside of the second core (5) side, and this upper surface consists of the part of mold cavity (8) inwall side; Cylinder (16) end face edge that is connected with the 3rd core (6) is positioned at the outside of the 3rd core side, and this end face consists of the part of mold cavity (8) inwall side.
5. according to claim 3 or 4 described a kind of framework type sand core positioning structures, it is characterized in that, the contiguous block (17) that links to each other with upper round platform (14), its side relative with the first core flushes with upper round platform lower surface; The contiguous block (17) that links to each other with lower round platform (15), its side relative with the second core flushes with lower round platform upper surface.
6. according to claim 3 or 4 described a kind of framework type sand core positioning structures, it is characterized in that, cylinder (16) side is provided with locating piece (11) and locating piece is located on the counterdie die joint; The rectangular bulk of locating piece.
7. according to claim 1 and 2 or 3 or 4 described a kind of framework type sand core positioning structures, it is characterized in that, on the mold cavity of upper and lower mould (8) the inwall side and mold parting surface be provided with groove (9) for accommodating connection framework (7).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201220352919 CN202683957U (en) | 2012-07-20 | 2012-07-20 | Frame-type sand core positioning structure |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201220352919 CN202683957U (en) | 2012-07-20 | 2012-07-20 | Frame-type sand core positioning structure |
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| CN202683957U true CN202683957U (en) | 2013-01-23 |
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| Application Number | Title | Priority Date | Filing Date |
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| CN 201220352919 Expired - Fee Related CN202683957U (en) | 2012-07-20 | 2012-07-20 | Frame-type sand core positioning structure |
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| CN (1) | CN202683957U (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104550758A (en) * | 2015-01-08 | 2015-04-29 | 贵州红林机械有限公司 | Sand core positioning structure in metal type casting mold |
| CN108176821A (en) * | 2017-12-29 | 2018-06-19 | 西峡县众德汽车部件有限公司 | Double sand core positioning devices and method |
-
2012
- 2012-07-20 CN CN 201220352919 patent/CN202683957U/en not_active Expired - Fee Related
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104550758A (en) * | 2015-01-08 | 2015-04-29 | 贵州红林机械有限公司 | Sand core positioning structure in metal type casting mold |
| CN108176821A (en) * | 2017-12-29 | 2018-06-19 | 西峡县众德汽车部件有限公司 | Double sand core positioning devices and method |
| CN108176821B (en) * | 2017-12-29 | 2020-12-04 | 西峡县众德汽车部件有限公司 | Double-sand-core positioning device and method |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20130123 Termination date: 20170720 |