CN207655861U - A kind of casting mould with bolt hole core - Google Patents
A kind of casting mould with bolt hole core Download PDFInfo
- Publication number
- CN207655861U CN207655861U CN201721820525.5U CN201721820525U CN207655861U CN 207655861 U CN207655861 U CN 207655861U CN 201721820525 U CN201721820525 U CN 201721820525U CN 207655861 U CN207655861 U CN 207655861U
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- core
- bolt hole
- hole
- sand mold
- positioning holes
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Abstract
The utility model discloses a kind of casting moulds with bolt hole core, including upper sand mold, the lower sand mold that can be combined, space between upper sand mold, lower sand mold is cavity, upper sand mold is equipped with the locating core mounting hole of perforation its upper surface and cavity, locating core is installed in locating core mounting hole, locating core is equipped with upper Positioning holes, bolt hole core is installed in cavity, the upper end of bolt hole core is extend into upper Positioning holes, lower sand mold is equipped with lower Positioning holes, and the lower end of bolt hole core is inserted into lower Positioning holes.The utility model solves the problems, such as easily misplace when sand mold and lower sand mold mould assembling, solves the problems, such as that the positioning of bolt hole core is not allowed, easily broken core, is vented unsmooth, facilitates the installation of bolt hole core.
Description
Technical field
The utility model is related to a kind of casting moulds, more particularly to a kind of casting mould with bolt hole core.
Background technology
In order to cast the casting with bolt hole, need to design bolt hole core in casting mould, and set on upper sand mold
Count upper Positioning holes, design lower Positioning holes on lower sand mold, upper Positioning holes and lower Positioning holes respectively to the cope print of bolt hole core and
Lower core print is positioned.First bolt hole core is lowered into lower sand mold when lower core, then by upper sand mold and lower sand mold mould assembling, by upper
The cope print that upper Positioning holes on sand mold entangle bolt hole core is positioned.In this method sand mold with lower sand mold mould assembling when easily go out
It now misplaces, increases the defects of bolt hole core positions inaccurate and disconnected core probability of happening, and bolt hole core increases stomata without exhaust passage
Defect probability of happening.
Invention content
The purpose of this utility model is to provide a kind of new casting mould with bolt hole core, fixed to solve bolt hole core
The problem of with easily broken core is not allowed in position.
In order to achieve the above objectives, the utility model includes the upper sand mold that can be combined, lower sand mold, upper sand mold, lower sand
Space between type is cavity, is structurally characterized in that the upper sand mold is equipped with the locating core installation for penetrating through its upper surface and cavity
Hole, locating core is equipped in locating core mounting hole, and locating core is equipped with upper Positioning holes, bolt hole core, bolt are equipped in cavity
The upper end of Kong Xin is extend into upper Positioning holes, and lower sand mold is equipped with lower Positioning holes, and the lower end of bolt hole core is inserted into lower Positioning holes
In.With the above structure, can upper sand mold, lower sand mold be first subjected to mould assembling operation when casting, then passes through locating core mounting hole
Bolt hole core is put into lower sand mold, the lower end of bolt hole core is inserted into lower Positioning holes, then locating core is put into locating core installation
Hole, the upper Positioning holes of wherein locating core are sleeved on the upper end of bolt hole core, with bonding between locating core and locating core mounting hole
Agent cements.By above-mentioned improvement, solve the problems, such as that the positioning of bolt hole core is not allowed in casting, easily broken core.
The locating core mounting hole is the stepped hole for including upper sector hole and lower sector hole, and the diameter of upper sector hole is more than lower sector hole
Diameter；The locating core includes the upper positioning column being linked together, lower positioning column, and the diameter of upper positioning column is more than the straight of lower positioning column
Diameter.Locating core mounting hole is stepped hole, and step surface makes locating core not fall, and then make for being limited to locating core
Accurate positioning when locating core is installed.
The upper sector hole of the locating core mounting hole is the bellmouth that diameter is gradually reduced from top to bottom, the locating core installation
The lower sector hole in hole is diameter is gradually reduced from top to bottom bellmouth, upper positioning column, lower positioning column be respectively with upper sector hole, hypomere
The adaptable tapered cylinders in hole.Upper sector hole and lower sector hole use bellmouth, upper positioning column, lower positioning column to use tapered cylinders, by
This can facilitate the installation of locating core.
The lower Positioning holes are the bellmouth that diameter is gradually reduced from top to bottom, and bolt hole core has mutually fits with lower Positioning holes
The tapered lower end portion answered.Lower Positioning holes, bolt hole core lower end use pyramidal structure, bolt hole core be inserted into lower Positioning holes when more
It is smooth.
The upper Positioning holes are the bellmouth that diameter becomes larger from top to bottom, and bolt hole core has mutually fits with upper Positioning holes
The tapered upper end portion answered.Upper Positioning holes, bolt hole core upper end use pyramidal structure, covered on bolt hole core by locating core
It is more smoothly when dress.
The casting mould with bolt hole core, it is characterized in that the inner wall of the locating core mounting hole is equipped with up and down
The air discharge duct of extension.Gas can enter air discharge duct along bolt hole core when casting, then be discharged outside cavity by air discharge duct, avoid stomata
Generation.
It is set on the inner wall of the locating core mounting hole there are two air discharge duct, two air discharge ducts are oppositely arranged.Two air discharge ducts
Gas is discharged, is vented and is obstructed when one of air discharge duct being avoided to block.
In conclusion the utility model easily misplaces when solving the problems, such as sand mold with lower sand mold mould assembling, solve
The positioning of bolt hole core is not allowed, easily broken core, is vented unsmooth problem, and the installation of bolt hole core is facilitated.
Description of the drawings
Specific embodiment of the present utility model is further described in detail below in conjunction with the accompanying drawings：
Fig. 1 is the structural schematic diagram of the utility model；
Fig. 2 is the sectional view along line A-A in Fig. 1；
Fig. 3 is the vertical view of Fig. 2；
Fig. 4 is the structural schematic diagram of locating core in the utility model；
Fig. 5 is the portions the B enlarged drawing in Fig. 2.
Specific implementation mode
Referring to Fig.1, it includes the upper sand mold 1 that can be combined, lower sand mold 2 that this kind, which has the casting mould of bolt hole core,
Space between upper sand mold 1, lower sand mold 2 is cavity 3, and upper sand mold 1 is equipped with the locating core installation for penetrating through its upper surface and cavity 3
Hole 4, locating core 5 is equipped in locating core mounting hole 4, and locating core 5 is equipped with upper Positioning holes 6, bolt hole core is equipped in cavity 3
7, the upper end of bolt hole core 7 is extend into upper Positioning holes 6, and lower sand mold 2 is equipped with lower Positioning holes 8, and the lower end of bolt hole core 7 is inserted into
Into lower Positioning holes 8.Upper sand mold 1, lower sand mold 2 with the above structure, first can be carried out mould assembling operation when casting by casting mould,
Then bolt hole core 7 being put by lower sand mold 2 by locating core mounting hole 4, the lower end of bolt hole core 7 is inserted into lower Positioning holes 8,
Locating core 5 is put into locating core mounting hole 4 again, the upper Positioning holes 6 of wherein locating core 5 are sleeved on the upper end of bolt hole core 7, fixed
It is cemented with binder between position core 5 and locating core mounting hole 4.By above-mentioned improvement, solves bolt hole core 7 in casting and position not
The problem of accurate, easily broken core.Not only make the positioning of bolt hole core 7 more accurate after improvement, but also the installation of bolt hole core 7 is more simple
Folk prescription is just.
With continued reference to Fig. 1, Fig. 4, Fig. 5, locating core mounting hole 4 is the stepped hole for including upper sector hole 9 and lower sector hole 10, epimere
The diameter in hole 9 is more than the diameter of lower sector hole；The locating core 5 include be linked together upper positioning column 11, lower positioning column 12, it is upper fixed
The diameter of position column 11 is more than the diameter of lower positioning column 12, and the lower face of upper positioning column 11 is pressed against the step of locating core mounting hole 4
On face 14.Locating core mounting hole 4 is stepped hole, and step surface is used to limit locating core 5, and locating core 5 is made not fall,
And then accurate positioning when locating core 5 being made to install.Diameter is gradually reduced the upper sector hole 9 of locating core mounting hole 4 from top to bottom
Bellmouth, the lower sector hole 10 of locating core mounting hole 4 are the bellmouth that diameter is gradually reduced from top to bottom, upper positioning column 11, lower fixed
Position column 12 is the tapered cylinders being adapted respectively with upper sector hole 9, lower sector hole 10.Upper sector hole 9 and lower sector hole 10 use bellmouth, on
Positioning column 11, lower positioning column 12 use tapered cylinders, thus can facilitate the installation of locating core 5.Lower Positioning holes 8 are straight from top to bottom
The bellmouth that diameter is gradually reduced, bolt hole core 7 have the tapered lower end portion being adapted with lower Positioning holes 8.Lower Positioning holes 8, bolt
The lower end of hole core 7 uses pyramidal structure, bolt hole core 7 to be inserted into more smoothly when lower Positioning holes 8.Upper Positioning holes 6 be on to
The bellmouth that lower diameter becomes larger, bolt hole core 7 have the tapered upper end portion being adapted with upper Positioning holes 6.Upper Positioning holes 6,
The upper end of bolt hole core 7 uses pyramidal structure, more smoothly when locating core 5 to be set on bolt hole core 7.
With reference to Fig. 2, Fig. 3, the inner wall of locating core mounting hole 4 is equipped with the air discharge duct 13 extended up and down.Gas can when casting
Enter air discharge duct 13 along bolt hole core 7, then be discharged outside cavity 3 by air discharge duct 13, avoids the generation of stomata.Locating core mounting hole
It is set on 4 inner wall there are two air discharge duct 13, two air discharge ducts 13 are oppositely arranged.Gas can be discharged in two air discharge ducts 13, avoid wherein
Exhaust is obstructed when one air discharge duct 13 blocks.
In conclusion the utility model is not limited to above-mentioned specific implementation mode.Those skilled in the art are not departing from this reality
Under the premise of with novel spirit and scope, several change and modification can be done, it is new that all these variations should all fall into this practicality
The protection domain of type.
Claims (7)
1. a kind of casting mould with bolt hole core, including the upper sand mold that can be combined（1）, lower sand mold（2）, upper sand mold
（1）, lower sand mold（2）Between space be cavity（3）, it is characterized in that the upper sand mold（1）It is equipped with and penetrates through its upper surface and type
Chamber（3）Locating core mounting hole（4）, locating core mounting hole（4）Locating core is inside installed（5）, locating core（5）It is equipped with upper positioning
Hole（6）, cavity（3）Bolt hole core is inside installed（7）, bolt hole core（7）Upper end extend into upper Positioning holes（6）In, lower sand mold
（2）It is equipped with lower Positioning holes（8）, bolt hole core（7）Lower end be inserted into lower Positioning holes（8）In.
2. the casting mould according to claim 1 with bolt hole core, it is characterized in that the locating core mounting hole（4）For
Including upper sector hole（9）With lower sector hole（10）Stepped hole, upper sector hole（9）Diameter be more than lower sector hole diameter；The locating core
（5）Including the upper positioning column being linked together（11）, lower positioning column（12）, upper positioning column（11）Diameter be more than lower positioning column（12）
Diameter.
3. the casting mould according to claim 2 with bolt hole core, it is characterized in that the locating core mounting hole（4）'s
Upper sector hole（9）For the bellmouth that diameter from top to bottom is gradually reduced, the locating core mounting hole（4）Lower sector hole（10）For from upper
The bellmouth being gradually reduced to lower diameter, upper positioning column（11）, lower positioning column（12）For respectively with upper sector hole（9）, lower sector hole
（10）Adaptable tapered cylinders.
4. the casting mould according to claim 1 with bolt hole core, it is characterized in that the lower Positioning holes（8）For from upper
The bellmouth being gradually reduced to lower diameter, bolt hole core（7）Have and lower Positioning holes（8）Adaptable tapered lower end portion.
5. the casting mould according to claim 1 with bolt hole core, it is characterized in that the upper Positioning holes（6）For from upper
The bellmouth become larger to lower diameter, bolt hole core（7）Have and upper Positioning holes（6）Adaptable tapered upper end portion.
6. the casting mould with bolt hole core according to any one of claim 1 to 5 claim, it is characterized in that institute
State locating core mounting hole（4）Inner wall be equipped with the air discharge duct that extends up and down（13）.
7. the casting mould according to claim 6 with bolt hole core, it is characterized in that the locating core mounting hole（4）'s
Air discharge duct there are two being set on inner wall（13）, two air discharge ducts（13）It is oppositely arranged.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201721820525.5U CN207655861U (en) | 2017-12-23 | 2017-12-23 | A kind of casting mould with bolt hole core |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201721820525.5U CN207655861U (en) | 2017-12-23 | 2017-12-23 | A kind of casting mould with bolt hole core |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN207655861U true CN207655861U (en) | 2018-07-27 |
Family
ID=62942055
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201721820525.5U Active CN207655861U (en) | 2017-12-23 | 2017-12-23 | A kind of casting mould with bolt hole core |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN207655861U (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110842149A (en) * | 2018-08-21 | 2020-02-28 | 中车齐齐哈尔车辆有限公司 | Railway vehicle side frame and forming process thereof and upright post hole core |
| CN112122554A (en) * | 2020-09-30 | 2020-12-25 | 大连金河铸造有限公司 | Positioning method of slender sand core for casting |
-
2017
- 2017-12-23 CN CN201721820525.5U patent/CN207655861U/en active Active
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110842149A (en) * | 2018-08-21 | 2020-02-28 | 中车齐齐哈尔车辆有限公司 | Railway vehicle side frame and forming process thereof and upright post hole core |
| CN112122554A (en) * | 2020-09-30 | 2020-12-25 | 大连金河铸造有限公司 | Positioning method of slender sand core for casting |
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