CN104999029A - Vehicle engine cold core box mold - Google Patents
Vehicle engine cold core box mold Download PDFInfo
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- CN104999029A CN104999029A CN201410154730.7A CN201410154730A CN104999029A CN 104999029 A CN104999029 A CN 104999029A CN 201410154730 A CN201410154730 A CN 201410154730A CN 104999029 A CN104999029 A CN 104999029A
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- core box
- insert
- lower core
- box insert
- die
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Abstract
The present invention provides a vehicle engine cold core box mold, and belongs to the field of mold design, wherein the problems of long replacement period and high cost of the existing mold are solved through the present invention. The cold core box mold comprises an upper core box cover plate, a lower core box bottom plate and a frame positioned between the upper core box cover plate and the lower core box bottom plate, an upper core box and a lower core box are arranged in the space enclosed among the upper core box cover plate, the lower core box bottom plate and the frame, and respectively comprise a plurality of upper core box insert blocks and a plurality of lower core box insert blocks, the positions below each upper core box insert block is corresponding to one lower core box insert block, molding cavities are formed between each pair of the upper core box insert blocks and the lower core box insert blocks, and each upper core box insert block and each lower core box insert block are independent. The vehicle engine cold core box mold of the present invention has advantages of convenient mold replacement, low cost, and long service life.
Description
Technical field
The invention belongs to automobile engine and manufacture field, specifically, relate to a kind of cold box die of automobile engine.
Background technology
The automobile engine of prior art is all adopt sand casting process to make, and comprises engine cylinder-body, water jacket etc.For some baroque parts, manufacturing each part needs to manufacture core.The mould of existing manufacture core, it comprises upper core box in framework and framework and lower core box, is die cavity between upper core box and lower core box.
In order to manufacture fast and shorten the production cycle, usually can obtain multiple core in one set of die, therefore accordingly, upper core box and lower core box can do very large simultaneously, to meet the requirement of the multiple core die cavity of its inner arrangement.But this structure causes the manufacturing process of upper and lower core box to complicate, increase cost; Meanwhile, if placement position is damaged, whole upper core box or lower core box can be caused to discard, and replacement cost is high.
Summary of the invention
The object of the invention is to there are the problems referred to above for existing technology, propose a kind of cold box die of modular automobile engine
Object of the present invention realizes by following technical proposal: the cold box die providing a kind of automobile engine, comprise core box cover plate, lower core box base plate and and framework on described between core box cover plate and lower core box base plate, core box cover plate on described, core box and lower core box is provided with in the space surrounded between lower core box base plate and framework, on described, lower core box is respectively by multiple, lower core box insert composition, to there being a lower core box insert below each upper core box insert, and be formed with die cavity between often pair of described upper core box insert and lower core box insert, on each, lower core box insert is separate.
In the cold box die of above-mentioned automobile engine, described lower core box base plate both sides are provided with lower core box locking hook, and the relevant position of described framework is provided with hook groove, and described lower core box locking hook end stretches in the hook groove of described framework.
In the cold box die of above-mentioned automobile engine, described often pair of upper cavity shape surrounded between core box insert and lower core box insert is incomplete same.
In the cold box die of above-mentioned automobile engine, between often pair of described upper core box insert and lower core box insert, be also provided with dynamic core box insert and quiet core box insert, and often pair of described dynamic core box insert and quiet core box insert are front and back arrangements.
In the cold box die of above-mentioned automobile engine, described dynamic core box insert is connected with cylinder, and externally moves shaping rear the drive by described cylinder of core.
In the cold box die of above-mentioned automobile engine, form the upper core box insert of described die cavity, lower core box insert, dynamic core box insert, quiet core box insert be made up 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%, other trace are P, S, and total amount is less than 0.02%, and surplus is Fe.
In the cold box die of above-mentioned automobile engine, described framework is made up of gray iron 250 or Q235-A steel.
Compared with prior art, adopt modular cavity structure, be convenient for changing the upper and lower core box insert of part wherein on the one hand, cost-saving; On the other hand, effectively can save the production time, the production cycle can not be delayed because of any problem of upper and lower core box, the life-span of whole mould can also be extended simultaneously.
Accompanying drawing explanation
Fig. 1 be the cold box die of automobile engine of the present invention partly cut open front view;
Fig. 2 is the top view of cold box die shown in Fig. 1;
Fig. 3 is that doing of cold box die shown in Fig. 1 cuts open side view.
In figure, the parts name that each Reference numeral is corresponding is called:
1, quiet core box insert; 2, dynamic core box insert; 18, plunger tip bar; 11, get core and empty rod; 22, quiet core box limited block; 24, upper core box limited block; 42, quiet core box connecting plate; 43, dynamic core box connecting plate; 71, lower core box base plate; 73, lower core box insert; 84, framework; 85, lower core box locking hook; 96, upper core box cover plate; 97, sand plate is penetrated; 102, sand plate limited block is penetrated; 116, sand-spraying hole; 130, upper core box insert.
Detailed description of the invention
Be below specific embodiments of the invention and by reference to the accompanying drawings, technical scheme of the present invention is further described, but the present invention be not limited to these embodiments.
As shown in Figure 1, the cold box die of automobile engine of the present invention, comprises core box cover plate 96, lower core box base plate 71 and framework therebetween 84, and three surrounds the cavity placing core box.
Core box comprises core box and lower core box, and upper core box can pass through mechanical-hydraulic structure, is elevated together with upper core box cover plate 96.Space between upper core box and lower core box forms die cavity.Existing die cavity is all come reverse engineer and lathe in machining out according to the mode of produced core array arrangement in die cavity, can the multiple core of disposable manufacture, and productivity ratio is high.But comparatively large for the bulk metal ingot volume of digital control processing, add difficulty in the selection of the conforming requirement of material, numerical control machine tool.
In the present invention, as shown in Figure 1, upper core box is made up of multiple upper core box insert 130, lower core box is made up of corresponding multiple lower core box insert 73, and correspond to a lower core box insert 73 below each upper core box insert 130, form a die cavity therebetween, each die cavity corresponds to a core part.
It should be noted that, be all separate shaping parts on each between core box insert 130, between each lower core box insert 73, by independently having manufactured.These inserts, can by certain frame for movement as the modes such as screw, bolt, riveted joint connect when being fit in mould, or are interfixed by welding, the mode such as gluing, but still belonged to independently individual separately, can disassemble when needed.
So, make when part insert is when manufacturing wearing and tearing in core process, breaking, can local replacing, alternative costs are low; And due to the insert of each die cavity independent separately, become modularization, therefore several insert can process on different Digit Control Machine Tool respectively simultaneously, greatly can shorten the process-cycle.
In addition, often pair of upper die cavity between core box insert 130 and lower core box insert 73 can be all identical, also can be incomplete same.That is, difform core all can be made in a set of die forming machine, is beneficial to very much the manufacture of model machine.
As shown in Figure 1, in order to the stability of structure, the junction of lower core box base plate 71 two ends and framework 84, is hinged with core box locking hook 85, and the relevant position of framework 84 is provided with a groove, and the end of this lower core box locking hook 85 stretches in this groove and realizes locking.This structure can improve the degree that is connected firmly of framework 85 and lower core box base plate 71 greatly.Preferably, be also provided with the little spring of coefficient of elasticity between the bottom of lower core box locking hook 85 and lower core box base plate 71, the tensile force of spring makes the end of the other end tightly insert in groove.
The upper surface of upper core box cover plate 96 is equipped with penetrates sand plate 97, spaced apart by penetrating sand plate limited block 102 therebetween.Sand-spraying hole 116 is arranged on to be penetrated on sand plate 97, and stretches in die cavity, for penetrating sand in die cavity.
As shown in Figure 2, also can assist between each upper core box insert 130 and lower core box insert 73 and dynamic core box insert 2 and quiet core box insert 1 are set, and dynamic core box insert 2 and quiet core box insert 1 are in one in front and one in back arranging, multiple dynamic core box insert 2 and multiple quiet core box insert 1 form a line respectively, and one_to_one corresponding.
Consult Fig. 3, multiple dynamic core box insert 2 is connected by dynamic core box connecting plate 43, and multiple quiet core box insert 1 is connected by quiet core box connecting plate 42.Wherein, dynamic core box insert 2 is connected with cylinder by dynamic core box connecting plate 42, prepares the driving of shaping exhaust hood, pull out core box connecting plate 42 together with dynamic core box insert 2 at core, makes core can demoulding discharging.
Further, in the present embodiment, mould be also provided with get core empty rod 11, between dynamic core box insert 2 and quiet core box insert 1, cooperatively define the outer contour shape of core on the one hand with dynamic core box insert 2, quiet core box insert 1, upper core box insert 130 and lower core box insert 73, become a part for mould; On the other hand, stop core outwards movement when dynamic core box insert 2 is outwards mobile, conveniently stripped.
Further, the present invention is also provided with multiple plunger tip bar 18, after completing core manufacture, withstands on core outer surface, promotes the demoulding.
In addition, consult Fig. 3, between upper core box cover plate 96 and quiet core box insert 1 upper surface, be provided with quiet core box limited block 22 and upper core box limited block 24.
Wherein, quiet core box limited block 22 to be arranged on quiet core box insert 1 upper surface by bolt and to protrude from this upper surface, because quiet core box insert 1 is arranged in the right side of figure, is therefore provided with inclined-plane in quiet core box limited block 22 upper right corner; Meanwhile, upper core box limited block 24 to be arranged on upper core box cover plate 96 lower surface by bolt and to protrude from this lower surface, and its lower left corner and quiet core box limited block 22 position in opposite directions are also provided with inclined-plane, thus contacts with the inclined-plane of quiet core box limited block 22.
When installation mold, when upper core box cover plate 96 moves down, the guiding by inclined-plane is slowly down to concordant with quiet core box insert 1 upper surface, and can not produce dislocation; Meanwhile, this inclined-plane can reduce the impulsive force of rigid collision, plays cushioning effect.
In the selection of material, in order to improve the life-span of mould complete machine and core box insert, in the present invention, preferred framework is made up of gray iron 250 or Q235-A steel, and the upper core box insert of die cavity, lower core box insert, dynamic core box insert, quiet core box insert adopt the steel of following mass percent to make:.
C:0.42%, SiO:0.8%, Mn:0.2%, Cr:5.4%, Mo:1.6%, V:1.2%, other trace are P, S, and total amount is less than 0.02%, and surplus is Fe.The mould steel of this chemical constituent, had both had good wearability, quenching degree, and the crystal grain of steel is little simultaneously, and hardness is high.Therefore, the life-span of whole core box can reach more than 350,000 times without any dimensional discrepancy.
The gray iron 250(trade mark HT250 of said frame) or Q235-A steel through twice heat treatment, there is higher yield limit and intensity.
It should be noted that, upper core box insert in the present invention, lower core box insert are just in order to the convenience on understanding, must not be defined as the upper and lower relation in orientation, as long as be oppositely arranged two core box inserts, it can be such as the right setting of a first from left, or one in front and one in back arrange, do not limit herein.
Specific embodiment described herein is only to the explanation for example of the present invention's spirit.Those skilled in the art can make various amendment or supplement or adopt similar mode to substitute to described specific embodiment, but can't depart from spirit of the present invention or surmount the scope that appended claims defines.
Although more employ the terms such as mould, insert, core box herein, do not get rid of the possibility using other term.These terms are used to be only used to describe and explain essence of the present invention more easily; The restriction that they are construed to any one additional is all contrary with spirit of the present invention.
Claims (7)
1. the cold box die of an automobile engine, it is characterized in that, comprise core box cover plate, lower core box base plate and and framework on described between core box cover plate and lower core box base plate, core box and lower core box is provided with on described in core box cover plate, the space that surrounds between lower core box base plate and framework, described upper and lower core box is made up of multiple upper and lower core box insert respectively, to there being a lower core box insert below each upper core box insert, and being formed with die cavity between often pair of described upper core box insert and lower core box insert, each upper and lower core box insert is separate.
2. the cold box die of automobile engine according to claim 1, it is characterized in that, described lower core box base plate both sides are provided with lower core box locking hook, and the relevant position of described framework is provided with hook groove, and described lower core box locking hook end stretches in the hook groove of described framework.
3. the cold box die of automobile engine according to claim 1, is characterized in that, described often pair of upper cavity shape surrounded between core box insert and lower core box insert is incomplete same.
4. the cold box die of automobile engine according to claim 1, it is characterized in that, also be provided with dynamic core box insert and quiet core box insert between often pair of described upper core box insert and lower core box insert, and often pair of described dynamic core box insert and quiet core box insert are front and back arrangements.
5. the cold box die of automobile engine according to claim 4, is characterized in that, described dynamic core box insert is connected with cylinder, and externally moves shaping rear the drive by described cylinder of core.
6. the cold box die of automobile engine according to claim 4, it is characterized in that, form the upper core box insert of described die cavity, lower core box insert, dynamic core box insert, quiet core box insert be made up 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%, other trace are P, S, total amount is less than 0.02%, and surplus is Fe.
7. the cold box die of automobile engine according to claim 1, is characterized in that, described framework is made up of gray iron 250 or Q235-A steel.
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 true CN104999029A (en) | 2015-10-28 |
| CN104999029B 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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| CN (1) | CN104999029B (en) |
Cited By (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 |
Cited By (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 |
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| Publication number | Publication date |
|---|---|
| CN104999029B (en) | 2019-01-22 |
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