CN207746374U - A kind of aluminum alloy chassis rear axle support metal gravity casting die - Google Patents
A kind of aluminum alloy chassis rear axle support metal gravity casting die Download PDFInfo
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- CN207746374U CN207746374U CN201721905482.0U CN201721905482U CN207746374U CN 207746374 U CN207746374 U CN 207746374U CN 201721905482 U CN201721905482 U CN 201721905482U CN 207746374 U CN207746374 U CN 207746374U
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- sprue
- lower template
- plate
- cope plate
- straight
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Abstract
A kind of aluminum alloy chassis rear axle support metal gravity casting die, it includes upper support block (1), cope plate (2), lower template (3), lower support block (4), ejector retainner plate (5), push plate (6), upper sprue cup (9) and submarine gate cup (10), it is respectively equipped with rising pouring unchoked running system in cope plate (2) and lower template (3), rising pouring unchoked running system includes that sprue ∑ is straight (11), in cross gate ∑ horizontal (12) and ingate ∑ (13), the section ratio of each running channel is in straight (11) ＜ cross gates ∑ cross (12) ＜ ingate ∑s of sprue ∑ (13), sprue ∑ is equipped with choked flow section in straight (11), the utility model advantage is：1, the internal quality of casting is stablized, tensile strength；2, using rising pouring unchoked running system, minimum choked flow section reduces filling velocity in sprue, and the effect of anti-volume gas and secondary oxidation slag inclusion is good.
Description
Technical field
The utility model is related to machinery equipment field, and in particular to a kind of aluminum alloy chassis rear axle support metal gravity casting
Modeling has.
Background technology
Currently, automobile industry lightweight development trend, structural part of automotive chassis gradually replace traditional steel by aluminum alloy materials
The distinguishing mark of material and automobile class height, chassis rear axle support are the highest portions of security requirement in automobile chassis system
Part, gravitational casting and two kinds of moulding process that low pressure casting is the production of aluminium alloy car chassis overhang, and gravitational casting is relatively low
Press that casting cost is low, small investment, production technology is relatively easy, therefore at home and abroad still has comparable development prospect.
Utility model content
The purpose of this utility model aiming at currently, automobile industry lightweight development trend, structural part of automotive chassis by
Aluminum alloy materials gradually replace the distinguishing mark of traditional steel and automobile class height, and chassis rear axle support is automobile chassis
The highest component of security requirement in system, gravitational casting and low pressure casting be two kinds of the production of aluminium alloy car chassis overhang at
Type technique, and the relatively low pressure casting cost of gravitational casting is low, small investment, production technology is relatively easy, therefore at home and abroad still
There is comparable development prospect, and a kind of aluminum alloy chassis rear axle support metal gravity casting die is provided.
The utility model include upper support block, cope plate, lower template, lower support block, ejector retainner plate, push plate, upper sprue cup and under pour
Cup, cope plate and lower template are separately mounted on corresponding upper support block and lower support block, and lower template bottom is equipped with one group of guide post, top
One group of guide post through hole is had on needle plate and push plate, ejector retainner plate is mounted in push plate, and is slided on one group of guide post, upper mold
Have sprue gate on plate and lower template, the liquid outlet of upper sprue cup and submarine gate cup respectively with corresponding cope plate and lower die
The sprue gate of plate communicates；Cope plate and lower template are formed with chassis rear axle support cavity, are respectively equipped in cope plate and lower template
Rising pouring unchoked running system, rising pouring unchoked running system include in straight sprue ∑, cross gate ∑ cross and ingate ∑, respectively
The section ratio of running channel is to be equipped with choked flow section in sprue ∑ is straight in the horizontal ＜ ingates ∑ of the straight ＜ cross gates ∑ of sprue ∑,
Sprue ∑ is directly communicated between cross gate ∑ cross by gooseneck type running channel, is located at the cope plate at casting die joint thermal center under
It is respectively equipped with riser, and exhaust hole slot corresponding with riser in template, water cooling tube group, sand are equipped on cope plate and lower template
Core locating slot, multiple chills and the cold pipe of point, lower template are equipped with heating pipe.
The utility model advantage is：1, it verts technique productions hollow and thin-walled aluminum alloy control arm with metal gravity, casting
Part inherent quality is stablized, and the indexs such as tensile strength, yield strength, elongation percentage, hardness meet design requirement；
2, using rising pouring unchoked running system, minimum choked flow section is in sprue, while sprue is used with cross gate
Gooseneck type connection with unhurried current effect, reduces filling velocity, the effect of anti-volume gas and secondary oxidation slag inclusion is good；
3, in order to reach while solidify, in addition to riser is arranged, increase water cooling in the heat energy-saving position that riser should not be arranged to adjust
Reshaping die temperature solidifies while realizing casting, reduces shrinkage porosity defect of contraction cavity and generates；
4, the inner cavity of casting is high using sand core molding, technical maturity, production efficiency.
Description of the drawings
Fig. 1 is the utility model decomposition texture schematic diagram.
Fig. 2 is the utility model rising pouring unchoked running system schematic diagram.
Fig. 3 is the utility model mold fastening structure schematic diagram.
Specific implementation mode
As shown in the picture, the utility model includes upper support block 1, cope plate 2, lower template 3, lower support block 4, ejector retainner plate 5, push plate
6, upper sprue cup 9 and submarine gate cup 10, cope plate 2 and lower template 3 are separately mounted on corresponding upper support block 1 and lower support block 4, under
3 bottom of template is equipped with one group of guide post 7, and one group of guide post through hole is had on ejector retainner plate 5 and push plate 6, and ejector retainner plate 5 is mounted on and pushes away
It on plate 6, and is slided on one group of guide post 7, sprue gate, upper sprue cup 9 and the submarine gate is had on cope plate 2 and lower template 3
The liquid outlet of cup 10 is communicated with the sprue gate of corresponding cope plate 2 and lower template 3 respectively；Cope plate 2 and lower template 3 are formed with bottom
Rising pouring unchoked running system, the open cast system of rising pouring are respectively equipped in disk rear axle support cavity, cope plate 2 and lower template 3
System includes 13 in sprue ∑ Helicopter-11, cross gate ∑ cross 12 and ingate ∑, and the section ratio of each running channel is sprue ∑ Helicopter-11
13 in the horizontal 12 ＜ ingate ∑s of ＜ cross gates ∑, choked flow section, sprue ∑ Helicopter-11 and cross gate are equipped in sprue ∑ Helicopter-11
It is communicated by gooseneck type running channel 14 between ∑ cross 12, is set respectively on the cope plate 2 and lower template 3 at casting die joint thermal center
There are riser 18, and exhaust hole slot corresponding with riser 18, it is fixed to be equipped with water cooling tube group 19, sand core on cope plate 2 and lower template 3
Position slot, multiple chills 20 and the cold pipe of point, lower template 3 are equipped with heating pipe.
Rising pouring unchoked running system convenient for pushing off the slag, is vented, steady, the product wall unevenness that fills type, 6 millimeters minimum, most
It is 35 millimeters big, and thermal center disperses more, in order to accomplish to solidify simultaneously as possible, avoids using because solidification shrinkage generates shrinkage cavity shrinkage porosity
" riser+water cooling " mode adjusts mold temperature, and this case shares water cooling at nine riser and three, riser is just calculated and pressed by thermal center method
Practical experience is modified.
The horizontal ＜ ingates of the straight ＜ cross gates sectional area ∑ F of sprue sectional area ∑ F are cut in ∑ F, and choked flow section is directly being poured
The calculation formula in road, smallest cross-sectional is：
F is straight=G/K*t* √ HP
In formula, G- poured weights
K- discharge coefficients, aluminium alloy value 0.04-0.07
The t- durations of pouring,
Hp- is averaged pressure head
Find out round sprue least radius.
Calculate runner ratio：∑ F is straight：∑ F is horizontal：In ∑ F
The design formula of riser：
D=（1.2-1.5）Dc,
H=（1.5-2）D
In formula, D is riser diameter, and dc is thermal center circular diameter, and H is the height of riser
Working method principle：Cope plate 2 and lower template 3 are verted mounted on gravity and are poured by upper support block 1 and lower support block 4 respectively
On note machine, cast front mold is by the pre-treatments such as preheating, spraying, cavity thickness of coating layer 0.15-0.2mm, riser paint thickness
1mm or so is spent, mold temperature is at 350 DEG C or so, and in an ON state, the initial position of mold is for water cooling tube group 19 and the cold pipe of point
Submarine gate cup 10 is in horizontal position.When cast starts, cope plate 2 opens up under the drive of upper support block 1 and equipment, first
The qualified sand core of pre-fabricated inspection is put into lower template 3, blows off molding after cavity, pouring robot by quantitative process
Refinement and denaturation qualification molten aluminum pours into submarine gate cup 10, and then mold starts to vert under the drive of equipment, and molten aluminum is by directly pouring
Cavity is quickly filled with after 13 in road ∑ Helicopter-11, cross gate ∑ cross 12 and ingate ∑.Equipment is tilted in 90 ° with initial position
When, it stops operating, at this moment riser 18 is in mostly above the thermal center for needing feeding, is mended under gravity to thermal center
Contracting, water cooling tube group 19 and the cold pipe of point open flowing when verting and starting 2s, are closed after the end 4s that verts, for each position of casting
Cool down, each position is enable to solidify simultaneously, equipment returns to starting point after solidification, and water cooling tube group 19 is according to mold shape
Distribution, chill 20 is thick most of in model, puts cold pipe and cools down for chill 20, and cope plate 2 is opened, and ejector retainner plate 5 is equipped with one group of top
Needle, is provided with thimble through hole in lower template 3, and the ejection cylinder of gravity tilt pouring machine drives push plate 6 and ejector retainner plate 5 to moving up
It is dynamic, casting is ejected into cavity, first cast cycle is completed in robot pickup.
Claims (1)
1. a kind of aluminum alloy chassis rear axle support metal gravity casting die, it is characterised in that it includes upper support block (1), upper mold
Plate (2), lower template (3), lower support block (4), ejector retainner plate (5), push plate (6), upper sprue cup (9) and submarine gate cup (10), cope plate
(2) it is separately mounted on corresponding upper support block (1) and lower support block (4) with lower template (3), lower template (3) bottom is led equipped with one group
One group of guide post through hole is had in column (7), ejector retainner plate (5) and push plate (6), ejector retainner plate (5) is mounted in push plate (6), and
It is slided on one group of guide post (7), sprue gate, upper sprue cup (9) and the submarine gate is had on cope plate (2) and lower template (3)
The liquid outlet of cup (10) is communicated with the sprue gate of corresponding cope plate (2) and lower template (3) respectively；Cope plate (2) and lower template
(3) it is formed with chassis rear axle support cavity, rising pouring unchoked running system, bottom are respectively equipped in cope plate (2) and lower template (3)
Note unchoked running system includes sprue ∑ straight (11), in cross gate ∑ horizontal (12) and ingate ∑ (13), section of each running channel
Face ratio is in straight (11) ＜ cross gates ∑ cross (12) ＜ ingate ∑s of sprue ∑ (13), and sprue ∑ is equipped with resistance in straight (11)
Flow section is communicated by gooseneck type running channel (14) between sprue ∑ straight (11) and cross gate ∑ horizontal (12), is located at casting parting
It is respectively equipped with riser (18), and gas vent corresponding with riser (18) on cope plate (2) and lower template (3) at the thermal center of face
Water cooling tube group (19), sand core locating slot, multiple chills (20) and the cold pipe of point are equipped in slot, cope plate (2) and lower template (3),
Lower template (3) is equipped with heating pipe.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201721905482.0U CN207746374U (en) | 2017-12-29 | 2017-12-29 | A kind of aluminum alloy chassis rear axle support metal gravity casting die |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201721905482.0U CN207746374U (en) | 2017-12-29 | 2017-12-29 | A kind of aluminum alloy chassis rear axle support metal gravity casting die |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN207746374U true CN207746374U (en) | 2018-08-21 |
Family
ID=63151727
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201721905482.0U Active CN207746374U (en) | 2017-12-29 | 2017-12-29 | A kind of aluminum alloy chassis rear axle support metal gravity casting die |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN207746374U (en) |
-
2017
- 2017-12-29 CN CN201721905482.0U patent/CN207746374U/en active Active
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