CN201855923U - Salt core positioning device for internally-cooled oil channel piston - Google Patents
Salt core positioning device for internally-cooled oil channel piston Download PDFInfo
- Publication number
- CN201855923U CN201855923U CN2010206011492U CN201020601149U CN201855923U CN 201855923 U CN201855923 U CN 201855923U CN 2010206011492 U CN2010206011492 U CN 2010206011492U CN 201020601149 U CN201020601149 U CN 201020601149U CN 201855923 U CN201855923 U CN 201855923U
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- CN
- China
- Prior art keywords
- salt core
- backstay
- core positioning
- piston
- salt
- 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 provides a salt core positioning device for an internally-cooled oil channel piston. The salt core positioning device comprises a piston inner mold. A salt core positioning rod passes through a hole for placing a salt core in the piston inner mold; the bottom shape of the salt core positioning rod is polygonal to be convenient for fixing the salt core positioning rod in the inner mold; an eccentric top pin for fastening is arranged at the bottom of the salt core positioning rod; central positioning holes are arranged at the enters of the salt core positioning rod and the eccentric top pin; and a salt core positioning steel wire sequentially penetrates into the salt core positioning rod and the central positioning hole on the eccentric top pin after passing through a positioning hole on the salt core in the inner mold. The salt core positioning device can radially and axially locate the salt core effectively to prevent the radial and axial deviation of the salt core, eliminate the position tolerance of an oil channel and improve the product yield.
Description
Technical field
The utility model relates to a kind of positioner, especially a kind of interior cold oil road piston salt core positioner.
Background technology
At present, commercial vehicle engine trends towards low emission, high detonation pressure, high load capacity, cold oil road piston in taking mostly.And the interior cold oil road that is formed by the salt core in the piston structure only communicates by the turnover oilhole of oil duct with piston cavity, and the radial and axial location of salt core is difficulty relatively.Position, cold oil road is overproof in causing easily.The methods that adopt negative pressure location salt core in the industry very high to the requirement of Casting Equipment more at present.
Summary of the invention
The purpose of this utility model provides a kind of interior cold oil road piston salt core positioner, can well carry out radial and axial location to the salt core, prevents the radial and axial skew of salt core.
In order to solve the problems of the technologies described above, the technical solution of the utility model is as follows: interior cold oil road piston salt core positioner, comprise the piston internal mold, it is characterized in that: lay in the described piston internal mold in the hole of salt core and be installed with salt core backstay, the bottom shape of salt core backstay is a polygon, it is fixing in internal mold to be convenient to salt core backstay, the bottom of salt core backstay is provided with and is used to carry out fastening eccentric ejector pin, the center of salt core backstay and eccentric ejector pin is provided with center positioning hole, and salt core positioning wire passes the locating hole on the salt core in the internal mold and penetrates center positioning hole on salt core backstay and the eccentric ejector pin successively.
To improvement of the technical scheme: described salt core backstay is to adopt the multidirectional forging forming of DAC material.
Beneficial effect:
Use interior cold oil road described in the utility model piston salt core positioner, penetrate salt core backstay in piston internal mold bottom, the backstay bottom adopts polygon to cooperate with internal mold, prevents that backstay from rotating; And carry out fastening with eccentric ejector pin, the center of salt core backstay and eccentric ejector pin is provided with center positioning hole, the locating hole that passes on the salt core with salt core positioning wire penetrates salt core backstay center positioning hole, carry out radial location, positioning wire enters eccentric ejector pin after by salt core backstay, positioning wire is bent in penetrating process, thereby make the very big frictional force of generation between positioning wire and the push rod, reach the purpose of the salt core being carried out axial location.The backstay material adopts the multidirectional forging forming of import DAC material, and the DAC material is a kind of extraordinary aluminothermy pressing mold steel alloy, has good intensity, hardness, wearability, thereby guarantees the size and the positional stability of push rod itself.The utility model can carry out radial and axial location to the salt core effectively, prevents the radial and axial skew of salt core, and elimination oil duct position is overproof, promotes product percent of pass.
Description of drawings
Fig. 1 is the vertical section structural map of salt core positioner.
Fig. 2 is the scheme of installation of salt core on mould.
The specific embodiment
Interior as shown in Figure 1 cold oil road piston salt core positioner, comprise the piston internal mold, lay in the described piston internal mold in the hole of salt core and be installed with salt core backstay 3, the bottom shape of salt core backstay 3 is a polygon, it is fixing in internal mold to be convenient to salt core backstay 3, the bottom of salt core backstay 3 is provided with threaded eccentric ejector pin 2, the center of salt core backstay 3 and eccentric ejector pin 2 is provided with center positioning hole, and salt core positioning wire 1 passes the locating hole on the salt core in the internal mold and penetrates center positioning hole on salt core backstay 3 and the eccentric ejector pin 2 successively.
Claims (2)
1. interior cold oil road piston salt core positioner, comprise the piston internal mold, it is characterized in that: lay in the described piston internal mold in the hole of salt core and be installed with salt core backstay, the bottom shape of salt core backstay is a polygon, it is fixing in internal mold to be convenient to salt core backstay, the bottom of salt core backstay is provided with and is used to carry out fastening eccentric ejector pin, the center of salt core backstay and eccentric ejector pin is provided with center positioning hole, and salt core positioning wire passes the locating hole on the salt core in the internal mold and penetrates center positioning hole on salt core backstay and the eccentric ejector pin successively.
2. cold oil road piston salt core positioner in according to claim 1 is characterized in that: described salt core backstay is to adopt the multidirectional forging forming of DAC material.
Priority Applications (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
CN2010206011492U CN201855923U (en) | 2010-10-31 | 2010-10-31 | Salt core positioning device for internally-cooled oil channel piston |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
CN2010206011492U CN201855923U (en) | 2010-10-31 | 2010-10-31 | Salt core positioning device for internally-cooled oil channel piston |
Publications (1)
Publication Number | Publication Date |
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CN201855923U true CN201855923U (en) | 2011-06-08 |
Family
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Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
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CN2010206011492U Expired - Fee Related CN201855923U (en) | 2010-10-31 | 2010-10-31 | Salt core positioning device for internally-cooled oil channel piston |
Country Status (1)
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CN (1) | CN201855923U (en) |
Cited By (4)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
CN104271286A (en) * | 2012-05-11 | 2015-01-07 | 斯奈克玛 | Tool for manufacturing a foundry core for a turbine engine blade and production method thereof |
CN104889343A (en) * | 2015-06-09 | 2015-09-09 | 湖南江滨机器(集团)有限责任公司 | Piston casting mould support and piston casting method |
CN105903908A (en) * | 2016-06-30 | 2016-08-31 | 湖南江滨机器(集团)有限责任公司 | Method and device for fixing salt core for piston casting |
CN106475525A (en) * | 2016-11-02 | 2017-03-08 | 湖南江滨机器(集团)有限责任公司 | A kind of apparatus and method for salt core is laid on Piston mould |
-
2010
- 2010-10-31 CN CN2010206011492U patent/CN201855923U/en not_active Expired - Fee Related
Cited By (7)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
CN104271286A (en) * | 2012-05-11 | 2015-01-07 | 斯奈克玛 | Tool for manufacturing a foundry core for a turbine engine blade and production method thereof |
CN104271286B (en) * | 2012-05-11 | 2016-09-21 | 斯奈克玛 | For manufacturing instrument and its production method of the casting core of turbine engine blade |
CN104889343A (en) * | 2015-06-09 | 2015-09-09 | 湖南江滨机器(集团)有限责任公司 | Piston casting mould support and piston casting method |
CN104889343B (en) * | 2015-06-09 | 2017-03-08 | 湖南江滨机器(集团)有限责任公司 | A kind of piston pours mold and supports and piston casting method |
CN105903908A (en) * | 2016-06-30 | 2016-08-31 | 湖南江滨机器(集团)有限责任公司 | Method and device for fixing salt core for piston casting |
CN106475525A (en) * | 2016-11-02 | 2017-03-08 | 湖南江滨机器(集团)有限责任公司 | A kind of apparatus and method for salt core is laid on Piston mould |
CN106475525B (en) * | 2016-11-02 | 2018-05-04 | 湖南江滨机器(集团)有限责任公司 | A kind of apparatus and method for being used to place salt core on Piston mould |
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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: 20110608 Termination date: 20141031 |
|
EXPY | Termination of patent right or utility model |