CN104999029B - A kind of cold box die of automobile engine - Google Patents
A kind of cold box die of automobile engine Download PDFInfo
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- CN104999029B CN104999029B CN201410154730.7A CN201410154730A CN104999029B CN 104999029 B CN104999029 B CN 104999029B CN 201410154730 A CN201410154730 A CN 201410154730A CN 104999029 B CN104999029 B CN 104999029B
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- core box
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Abstract
The present invention provides a kind of cold box dies of automobile engine, belong to mold design field, it solves the problems, such as that the existing die change period is long, at high cost.The cold box die, including upper core box cover board, lower core box bottom plate and and frame between the upper core box cover board and lower core box bottom plate, upper core box and lower core box are provided in the space surrounded between the upper core box cover board, lower core box bottom plate and frame, the upper and lower core box is made of multiple upper and lower core box inserts respectively, a lower core box insert is corresponding with below each upper core box insert, and type chamber is formed between each pair of upper core box insert and lower core box insert, each upper and lower core box insert is mutually indepedent.The present invention has the advantages that die change is convenient, at low cost, the service life is long.
Description
Technical field
The invention belongs to automobile engine manufacturing fields, it particularly relates to a kind of cold box die of automobile engine.
Background technique
The automobile engine of the prior art is all made of using sand casting process, including engine cylinder body, water jacket etc..It is right
In some complicated components, manufactures each part and need to manufacture sand core.It is existing manufacture sand core mold comprising frame with
And upper core box and lower core box in frame, it is type chamber between upper core box and lower core box.
In order to quickly manufacture and shorten the production cycle, multiple sand cores, therefore phase can be obtained simultaneously usually in one set of die
It answers, upper core box and lower core box can be made very big, to meet the requirement of its internal multiple sand core type chamber of arranging.But this knot
Structure causes the manufacturing process of upper and lower core box to complicate, and increases cost；Meanwhile if placement position is damaged, entirely upper core will lead to
Box or lower core box are discarded, and replacement cost is high.
Summary of the invention
The purpose of the present invention is there is the above problem in view of the prior art, a kind of modular automobile engine is proposed
Cold box die.
Object of the invention can be realized by the following technical scheme: a kind of cold box die of automobile engine is provided,
Including upper core box cover board, lower core box bottom plate and the frame between the upper core box cover board and the lower core box bottom plate,
It is provided with upper core box and lower core box in the space surrounded between the upper core box cover board, the lower core box bottom plate and the frame,
The upper and lower core box is made of multiple upper and lower core box inserts respectively, is corresponding with described in one below each upper core box insert
Lower core box insert, and type chamber is formed between each pair of upper core box insert and the lower core box insert, each upper and lower core box edge
Block is mutually indepedent, and dynamic core box insert and quiet core box insert are additionally provided between each pair of upper core box insert and lower core box insert, and
Each pair of dynamic core box insert and quiet core box insert are arranged in front and back, are set between upper core box cover board and quiet core box insert upper surface
It is equipped with quiet core box limited block and upper core box limited block, the upper right corner of the quiet core box limited block is equipped with the first inclined-plane, the upper core
The box limited block lower left corner and the opposite position of quiet core box limited block also are provided with the second inclined-plane.
In the cold box die of above-mentioned automobile engine, lower core box bottom plate two sides are equipped with lower core box locking
It hooks, the corresponding position of the frame, which is equipped with, hooks slot, and lower core box locking hook end is protruded into the hook slot of the frame.
In the cold box die of above-mentioned automobile engine, enclosed between each pair of upper core box insert and lower core box insert
At cavity shape it is not exactly the same.
In the cold box die of above-mentioned automobile engine, the dynamic core box insert is connect with cylinder, and sand core at
It is driven after type by the cylinder and is moved to outside.
In the cold box die of above-mentioned automobile engine, formed the upper core box insert of the type chamber, lower core box insert,
Dynamic core box insert, quiet core box insert are made of the steel of following mass percent: C:0.42%, SiO:0.8%, Mn:0.2%, Cr:
5.4%, Mo:1.6%, V:1.2%, it is P, S that other are micro, and total amount is less than 0.02%, surplus Fe.
In the cold box die of above-mentioned automobile engine, the frame is made of gray iron 250 or Q235-A steel.
Compared with prior art, using modular cavity structure, on the one hand it is convenient for changing the upper and lower core box in part therein
Insert, save the cost；On the other hand, can effectively save the production time, will not because of upper and lower core box any problem and delay
Production cycle, while the service life of entire mold can also be extended.
Detailed description of the invention
Fig. 1 is the half-sectional main view of the cold box die of automobile engine of the invention；
Fig. 2 is the top view of cold box die shown in Fig. 1；
Fig. 3 is the half-sectional side view of cold box die shown in Fig. 1.
In figure, the corresponding parts title of each appended drawing reference are as follows:
1, quiet core box insert；2, core box insert is moved；18, plunger tip bar；11, coring empties stick；22, quiet core box limited block；24,
Upper core box limited block；42, quiet core box connecting plate；43, core box connecting plate is moved；71, lower core box bottom plate；73, lower core box insert；84,
Frame；85, lower core box locking hook；96, upper core box cover board；97, sand ejection board；102, sand ejection board limited block；116, sand-spraying hole；130,
Upper core box insert.
Specific embodiment
Following is a specific embodiment of the present invention in conjunction with the accompanying drawings, technical scheme of the present invention will be further described,
However, the present invention is not limited to these examples.
As shown in Figure 1, the cold box die of automobile engine of the invention, including upper core box cover board 96, lower core box bottom plate
71 and frame 84 between the two, three surrounds the cavity for placing core box.
Core box includes upper core box and lower core box, and upper core box can be by mechanical-hydraulic structure, together with upper core box cover board 96 1
It rises and is gone up and down.Space structure forming cavity between upper core box and lower core box.Existing type chamber is all according to the type core manufactured
Array arrangement the intracavitary mode of type come reverse-engineer with lathe in machining come out, can disposably manufacture multiple type cores,
Productivity is high.But the bulk metal ingot volume for numerical control processing is larger, the requirement, numerical control machine tool to material consistency
Difficulty is increased in selection.
In the present invention, as shown in Figure 1, upper core box is made of multiple upper core box inserts 130, lower core box is by corresponding multiple lower cores
Box insert 73 forms, and corresponds to a lower core box insert 73 below each upper core box insert 130, forms a type therebetween
Chamber, each type chamber correspond to a sand core part.
It should be noted that be all between each upper core box insert 130, between each lower core box insert 73 independently of each other at
The component of type is by independently manufacturing completion.These inserts can pass through certain machinery when installing in mold
The modes such as structure such as screw, bolt, riveting connect, or are fixed to each other by modes such as welding, gluings, but respectively still fall within solely
Vertical individual can disassemble when needed.
In this way, when to wear, rupture during manufacturing sand core when part insert, it can be with local replacing, alternative costs
It is low；And since the insert of each type chamber is respectively independent, at modularization, therefore can be with several inserts respectively on different numerically-controlled machine tools
Simultaneous processing is substantially shorter the process-cycle.
In addition, the type chamber between each pair of upper core box insert 130 and lower core box insert 73 can be all identical, it can also be incomplete
It is identical.That is, sand core of different shapes can be made in a set of die forming machine, it is especially advantageous for the manufacture of model machine.
As shown in Figure 1, for the stability of structure, the junction at lower core box bottom plate 71 both ends and frame 84 is hinged with one
Lower core box locking hook 85, the corresponding position of frame 84 are provided with a groove, and the groove is protruded into the end of the lower core box locking hook 85
Interior realization locking.The structure can greatly improve the degree that is connected firmly of frame 85 Yu lower core box bottom plate 71.Preferably, lower core box
It is additionally provided with the small spring of coefficient of elasticity between the bottom end and lower core box bottom plate 71 of locking hook 85, the tensile force of spring makes the other end
End be tightly inserted into groove.
The upper surface of upper core box cover board 96 is equipped with sand ejection board 97, is spaced apart by sand ejection board limited block 102 therebetween.
Sand-spraying hole 116 is mounted in sand ejection board 97, and is protruded into type chamber, for penetrating sand to type is intracavitary.
As shown in Fig. 2, can also assist that dynamic core box insert 2 is arranged between each upper core box insert 130 and lower core box insert 73
With quiet core box insert 1, and dynamic core box insert 2 and quiet core box insert 1 be in one in front and one in back arranging, multiple dynamic core box inserts 2 and multiple
Quiet core box insert 1 forms a line respectively, and corresponds.
Refering to Fig. 3, multiple dynamic core box inserts 2 are connected by dynamic core box connecting plate 43, and multiple quiet core box inserts 1 pass through quiet core
Box connecting plate 42 connects.Wherein, it moves core box insert 2 to connect by dynamic core box connecting plate 42 with cylinder, after sand core preparation molding
Cylinder driving, pulls out core box connecting plate 42 together with dynamic core box insert 2, sand core is allowed to demould discharging.
Further, in the present embodiment, mold is additionally provided with coring and empties stick 11, is located at dynamic core box insert 2 and quiet core box
It is on the one hand total together with dynamic core box insert 2, quiet core box insert 1, upper core box insert 130 and lower core box insert 73 between insert 1
With the outer contour shape of sand core is defined, become a part of mold；On the other hand, the resistance when dynamic core box insert 2 is displaced outwardly
Only sand core is displaced outwardly, conveniently stripped.
Further, the present invention is additionally provided with multiple plunger tip bars 18, after completing sand core manufacture, withstands on sand core outer surface,
Promote demoulding.
In addition, between upper core box cover board 96 and quiet 1 upper surface of core box insert, being provided with quiet core box limited block refering to Fig. 3
22 and upper core box limited block 24.
Wherein, quiet core box limited block 22 is mounted on quiet 1 upper surface of core box insert by bolt and protrudes from the upper surface,
Since quiet core box insert 1 is located at the right side in figure, the first inclined-plane is equipped in quiet 22 upper right corner of core box limited block；On meanwhile
Core box limited block 24 is mounted on 96 lower surface of upper core box cover board by bolt and protrudes from the lower surface, and its lower left corner with it is quiet
The opposite position of core box limited block 22 also is provided with the second inclined-plane, to be in contact with the first inclined-plane of quiet core box limited block 22.
In installation mold, when upper core box cover board 96 moves down, can be slowly dropped to by the guiding on the first inclined-plane with it is quiet
1 upper surface of core box insert is concordant, without generating dislocation；Meanwhile first inclined-plane can reduce the impact force of rigid collision, rise
To buffer function.
In the selection of material, in order to improve the service life of mold complete machine and core box insert, the present invention in, preferably frame by
Gray iron 250 or Q235-A steel are made, and the upper core box insert of type chamber, lower core box insert, dynamic core box insert, quiet core box insert use
The steel of following mass percent is made.
C:0.42%, SiO:0.8%, Mn:0.2%, Cr:5.4%, Mo:1.6%, V:1.2%, other it is micro be P, S,
Total amount is less than 0.02%, surplus Fe.The mould steel of this chemical constituent both has preferable wearability, harden ability, while steel
Crystal grain it is small, hardness is high.Therefore, the service life of entire core box up to 350,000 times or more without any size deviation.
The gray iron 250 (trade mark HT250) or Q235-A steel of said frame by being heat-treated twice, surrender pole with higher
Limit and intensity.
It should be noted that the upper core box insert, lower core box insert in the present invention are intended merely to the convenience in understanding, not
The upper and lower relationship being necessarily limited in orientation, as long as two core box inserts being oppositely arranged, such as can be a first from left
Right setting, or be one in front and one in back arranged, it does not limit herein.
Specific embodiment described herein is only an example for the spirit of the invention.The neck of technology belonging to the present invention
The technical staff in domain can make various modifications or additions to the described embodiments or replace by a similar method
In generation, however, it does not deviate from the spirit of the invention or beyond the scope of the appended claims.
Although the terms such as mold, insert, core box are used more herein, the possibility using other terms is not precluded
Property.The use of these items is only for be more convenient to describe and explain essence of the invention；It is construed as any one
Additional limitation is disagreed with spirit of that invention.
Claims (6)
1. a kind of cold box die of automobile engine, which is characterized in that including upper core box cover board, lower core box bottom plate and be located at
Frame between the upper core box cover board and the lower core box bottom plate, in the upper core box cover board, the lower core box bottom plate and institute
It states and is provided with upper core box and lower core box in the space surrounded between frame, the upper and lower core box is inlayed by multiple upper and lower core boxes respectively
Block composition, is corresponding with the lower core box insert below each upper core box insert, and each pair of upper core box insert and
Type chamber is formed between the lower core box insert, each upper and lower core box insert is mutually indepedent, and each pair of upper core box insert is under
Dynamic core box insert and quiet core box insert are additionally provided between core box insert, and before each pair of dynamic core box insert and quiet core box insert are in
After arrange, quiet core box limited block and upper core box limited block, institute are provided between upper core box cover board and quiet core box insert upper surface
The upper right corner for stating quiet core box limited block is equipped with the first inclined-plane, and the upper core box limited block lower left corner and quiet core box limited block are opposite
Position also is provided with the second inclined-plane.
2. the cold box die of automobile engine according to claim 1, which is characterized in that lower core box bottom plate two sides
Lower core box locking hook is installed, the corresponding position of the frame, which is equipped with, hooks slot, and the frame is protruded into lower core box locking hook end
In the hook slot of frame.
3. the cold box die of automobile engine according to claim 1, which is characterized in that each pair of upper core box insert
The cavity shape surrounded between lower core box insert is not exactly the same.
4. the cold box die of automobile engine according to claim 1, which is characterized in that the dynamic core box insert and gas
Cylinder connection, and driven after sand core molding by the cylinder and moved to outside.
5. the cold box die of automobile engine according to claim 1, which is characterized in that form the upper core of the type chamber
Box insert, lower core box insert, dynamic core box insert, quiet core box insert are made of the steel of following mass percent: C:0.42%, SiO:
0.8%, Mn:0.2%, Cr:5.4%, Mo:1.6%, V:1.2%, it is P, S that other are micro, and less than 0.02%, surplus is total amount
Fe。
6. the cold box die of automobile engine according to claim 1, which is characterized in that the frame is by gray iron 250
Or Q235-A steel is made.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201410154730.7A CN104999029B (en) | 2014-04-18 | 2014-04-18 | A kind of cold box die of automobile engine |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201410154730.7A CN104999029B (en) | 2014-04-18 | 2014-04-18 | A kind of cold box die of automobile engine |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN104999029A CN104999029A (en) | 2015-10-28 |
| CN104999029B true CN104999029B (en) | 2019-01-22 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201410154730.7A Active CN104999029B (en) | 2014-04-18 | 2014-04-18 | A kind of cold box die of automobile engine |
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| Country | Link |
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Families Citing this family (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105855462A (en) * | 2016-05-16 | 2016-08-17 | 江苏祥和电子科技有限公司 | Core box mold of automobile engine |
| CN108971437A (en) * | 2018-08-01 | 2018-12-11 | 广西玉柴机器股份有限公司 | The casting sand core production method of cylinder of diesel engine and cylinder head variant machine |
Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US1620227A (en) * | 1926-05-22 | 1927-03-08 | Valley Mould And Fron Corp | Core box for ingot molds or the like |
| CN2710792Y (en) * | 2004-06-15 | 2005-07-20 | 苏州工业园区明志铸造装备有限公司 | Cold box |
| CN201552286U (en) * | 2009-07-22 | 2010-08-18 | 宁波全力机械模具有限公司 | Novel cylinder core cold-box mould for automobile engine body core making center |
| CN202343908U (en) * | 2011-10-14 | 2012-07-25 | 宁波高盛模具制造有限公司 | Engine cylinder water jacket mould |
| CN203804147U (en) * | 2014-04-18 | 2014-09-03 | 宁波高盛模具制造有限公司 | Cold core box mould of automobile engine |
-
2014
- 2014-04-18 CN CN201410154730.7A patent/CN104999029B/en active Active
Patent Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US1620227A (en) * | 1926-05-22 | 1927-03-08 | Valley Mould And Fron Corp | Core box for ingot molds or the like |
| CN2710792Y (en) * | 2004-06-15 | 2005-07-20 | 苏州工业园区明志铸造装备有限公司 | Cold box |
| CN201552286U (en) * | 2009-07-22 | 2010-08-18 | 宁波全力机械模具有限公司 | Novel cylinder core cold-box mould for automobile engine body core making center |
| CN202343908U (en) * | 2011-10-14 | 2012-07-25 | 宁波高盛模具制造有限公司 | Engine cylinder water jacket mould |
| CN203804147U (en) * | 2014-04-18 | 2014-09-03 | 宁波高盛模具制造有限公司 | Cold core box mould of automobile engine |
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| Publication number | Publication date |
|---|---|
| CN104999029A (en) | 2015-10-28 |
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