CN206009744U - Cylinder holes core sand type component for cylinder block of casting - Google Patents
Cylinder holes core sand type component for cylinder block of casting Download PDFInfo
- Publication number
- CN206009744U CN206009744U CN201620937303.0U CN201620937303U CN206009744U CN 206009744 U CN206009744 U CN 206009744U CN 201620937303 U CN201620937303 U CN 201620937303U CN 206009744 U CN206009744 U CN 206009744U
- Authority
- CN
- China
- Prior art keywords
- cylinder
- core sand
- cylinder holes
- sand
- holes core
- 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.)
- Expired - Fee Related
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Abstract
The utility model discloses a kind of cylinder holes core sand type component for cylinder block of casting, including first cylinder cylinder holes core sand, middle cylinder cylinder holes core sand and last cylinder cylinder holes core sand, the rear end of the first cylinder cylinder holes core sand is provided with conical protrusions, the front end of middle cylinder cylinder holes core sand is provided with cone-shaped groove, the rear end of middle cylinder cylinder holes core sand is provided with conical protrusions, the front end of last cylinder cylinder holes core sand is provided with cone-shaped groove, the cone-shaped groove is mated with the taper of conical protrusions, previous cylinder holes core sand inserted by conical protrusions after a cylinder holes core sand cone-shaped groove in, the rear end face of previous cylinder holes core sand is fitted with the front end face of rear cylinder holes core sand, and between the bottom surface of the end face and cone-shaped groove of conical protrusions, have appearance sand gap.Positioning precision during raising group core, it is to avoid disconnected sand, scab etc. cause product quality defect, reduces the required precision manufactured by core.
Description
Technical field
The utility model is related to auto parts and components moulding by casting technical field, and in particular to a kind of for cylinder block of casting
Cylinder holes core sand type component, for cylinder block of casting cylinder holes when use.
Background technology
Cylinder holes core sand type component for cylinder block of casting is in series using multiple cylinder holes core sand types.Each cylinder holes core sand
After the sand grains of type is by adhesion agent adhesion then compressing by mould.Previous cylinder holes core sand type is passed through with rear cylinder holes core sand type
Cylinder or class cylinder positioning.
Said structure exist defect be：Easily is produced the problems such as disconnected sand, scab when sand mold makes, using cylinder or class
Cylinder is positioned, and is carried out in group core and casting cycle, and deviations are big, and positioning precision is relatively low；In addition, sand mold is easy in casting cycle
Displacement is produced by iron (steel) water slug, rear-bank rotor housing Wall-Thickness Difference is larger so as to cast, therefore part scraps, partly used in engine
During cause hot-spot, the problems such as produce cylinder holes abrasion aggravation, scuffing of cylinder bore, can thus make under the power of engine, moment of torsion
Drop, or even there is severe safety problem.
Utility model content
The utility model aims to provide a kind of cylinder holes core sand type component for cylinder block of casting, positioning during raising group core
Precision, it is to avoid disconnected sand, scab etc. cause product quality defect, reduces the required precision manufactured by core.
For this purpose, the technical scheme that adopted of the utility model for：A kind of cylinder holes core sand type component for cylinder block of casting,
Including first cylinder cylinder holes core sand, middle cylinder cylinder holes core sand and last cylinder cylinder holes core sand, the rear end of the first cylinder cylinder holes core sand
Conical protrusions are provided with, the front end of middle cylinder cylinder holes core sand is provided with cone-shaped groove, after middle cylinder cylinder holes core sand
End is provided with conical protrusions, and the front end of last cylinder cylinder holes core sand is provided with cone-shaped groove, the cone-shaped groove and circular cone
The raised taper coupling of shape, previous cylinder holes core sand inserted by conical protrusions after a cylinder holes core sand cone-shaped groove
Interior, the rear end face of previous cylinder holes core sand is fitted with the front end face of rear cylinder holes core sand, and the end face and circle of conical protrusions
There is appearance sand gap between the bottom surface of conical socket.
Used as the preferred of such scheme, the depth for holding sand gap is 3-5mm, cone-shaped groove and conical protrusions
Taper is 30～60 °.Optimal Parameters, further improve the quality of shaped article.
The beneficial effects of the utility model：
(1) compared with traditional cylinder or class cylinder location structure, conical location structure increases contact area,
Blastic deformation of iron (steel) water to sand mold in positioning precision and casting cycle is substantially increased, the precision for reducing manufacturing core will
Ask, for core because the positioning precision problem for causing can reach very high positioning precision, traditional structure by finishing
When the accuracy of manufacture is low, after repairing a die, positioning precision is poor, or even can only do and scrap process, with good technology and economic effect；
(2) the casting parts deviation caused due to iron (steel) water slug in core positioning and casting cycle is avoided well
Problem, it is ensured that casting qualification rate and product yield, just solves the big of existing structure presence well by the change of very little
Problem；
(3) the disconnected sand produced in sand mold group core and casting cycle, falls in appearance sand gap, further increases into quality
Amount.
Description of the drawings
Fig. 1 is structural representation of the present utility model.
Specific embodiment
Below by embodiment and accompanying drawing is combined, the utility model is described in further detail：
As shown in figure 1, a kind of cylinder holes core sand type component for cylinder block of casting, by first cylinder cylinder holes core sand 1, middle cylinder
Cylinder holes core sand 2 and last cylinder cylinder holes core sand 3, the quantity of middle cylinder cylinder holes core sand 2 are determined according to shaped article.Cylinder holes core sand
After the sand grains of type is by adhesion agent adhesion then compressing by mould.Each cylinder holes core sand type assembled in series constitutes cylinder holes core sand
Type component.
The rear end of first cylinder cylinder holes core sand 1 is provided with conical protrusions a, and the front end of middle cylinder cylinder holes core sand 2 is provided with
Cone-shaped groove b, the rear end of middle cylinder cylinder holes core sand 2 are provided with conical protrusions a, and the front end of last cylinder cylinder holes core sand 3 sets
It is equipped with cone-shaped groove b.Cone-shaped groove b is mated with the taper of conical protrusions a, and previous cylinder holes core sand is convex by cone
Rise after a insertions in the cone-shaped groove b of a cylinder holes core sand, the rear end face of previous cylinder holes core sand and rear cylinder holes core sand
Front end face is fitted, and has appearance sand gap c between the bottom surface of the end face of conical protrusions a and cone-shaped groove b.
Preferably, the depth for holding sand gap c is 3-5mm, according to sand core structure and intensity selected angle.Cone-shaped groove b
30～60 ° are with the taper of conical protrusions a, are determined according to the required precision of the core degree of packing and casting.
Previous cylinder holes core sand can be adjusted according to actual cylinder holes core size with the position length of rear cylinder holes core sand,
As long as meeting positioning requirements and sand core strength being unaffected.
Claims (2)
1. a kind of cylinder holes core sand type component for cylinder block of casting, including first cylinder cylinder holes core sand (1), middle cylinder cylinder holes core pattern
Sand (2) and last cylinder cylinder holes core sand (3), it is characterised in that：It is convex that the rear end of first cylinder cylinder holes core sand (1) is provided with cone
Rise (a), the front end of middle cylinder cylinder holes core sand (2) is provided with cone-shaped groove (b), the rear end of middle cylinder cylinder holes core sand (2)
Conical protrusions (a) are provided with, the front end of last cylinder cylinder holes core sand (3) is provided with cone-shaped groove (b), the cone-shaped groove
B () is mated with the taper of conical protrusions (a), previous cylinder holes core sand cylinder holes core pattern after conical protrusions (a) insertion
In the cone-shaped groove (b) of sand, the rear end face of previous cylinder holes core sand is fitted with the front end face of rear cylinder holes core sand, and circular cone
There is appearance sand gap (c) between the shape projection end face of (a) and the bottom surface of cone-shaped groove (b).
2. according to the cylinder holes core sand type component for cylinder block of casting described in claim 1, it is characterised in that：Between the appearance sand
The depth of gap (c) is that the taper of 3-5mm, cone-shaped groove (b) and conical protrusions (a) is 30～60 °.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201620937303.0U CN206009744U (en) | 2016-08-25 | 2016-08-25 | Cylinder holes core sand type component for cylinder block of casting |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201620937303.0U CN206009744U (en) | 2016-08-25 | 2016-08-25 | Cylinder holes core sand type component for cylinder block of casting |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN206009744U true CN206009744U (en) | 2017-03-15 |
Family
ID=58251778
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201620937303.0U Expired - Fee Related CN206009744U (en) | 2016-08-25 | 2016-08-25 | Cylinder holes core sand type component for cylinder block of casting |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN206009744U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN112091176A (en) * | 2020-08-16 | 2020-12-18 | 重庆淬智机械有限公司 | Sand core for casting two-stroke low-pressure direct injection cylinder and manufacturing method thereof |
-
2016
- 2016-08-25 CN CN201620937303.0U patent/CN206009744U/en not_active Expired - Fee Related
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN112091176A (en) * | 2020-08-16 | 2020-12-18 | 重庆淬智机械有限公司 | Sand core for casting two-stroke low-pressure direct injection cylinder and manufacturing method thereof |
| CN112091176B (en) * | 2020-08-16 | 2022-03-01 | 重庆淬智机械有限公司 | Sand core for casting two-stroke low-pressure direct injection cylinder and manufacturing method thereof |
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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 |
Granted publication date: 20170315 Termination date: 20190825 |
|
| CF01 | Termination of patent right due to non-payment of annual fee |