CN205869433U - Mould of casting new energy automobile water cooled machine shell - Google Patents
Mould of casting new energy automobile water cooled machine shell Download PDFInfo
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- CN205869433U CN205869433U CN201620838237.1U CN201620838237U CN205869433U CN 205869433 U CN205869433 U CN 205869433U CN 201620838237 U CN201620838237 U CN 201620838237U CN 205869433 U CN205869433 U CN 205869433U
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Abstract
The utility model discloses a mould of casting new energy automobile water cooled machine shell is a low pressure casting mould, include side form and last mould, lower mould, merge the annular space of side form and last mould, lower mould formation motor housing shape, the annular space in still be provided with psammitolite spiral water channel the lower mould on be equipped with the constant head tank the constant head tank in have an outside vacuum pump of pipe connection. Set up vacuum machine aided forming, the porous psammitolite that will loosen forms the exhaust passage, takes out to be wrapped up in the gas that continues the production in the back by the aluminium water drum, promotes motor casing quality control's precision.
Description
Technical field
This utility model relates to the preparation method field of water cooling motor housing, uses the new energy of low pressure casting particularly to one
The mould of source automobile water-cooling motor housing.
Background technology
Water cooling motor housing, substantially in hollow cylinder shape, is provided with spirality channel in the barrel of hollow cylinder.China
Patent publication No. CN 105680608 A discloses such a water cooling motor housing and manufacture method, during this motor housing includes
Empty cylinder-shaped outer cover body and water cooling tube, water cooling tube is located in outer cover body, and water cooling tube has two-port, and outer cover body has
Having an import and an outlet, the two-port of water cooling tube is respectively arranged on inlet and outlet, described water cooling tube be spiral type and by
Copper product is made, and is provided with at least one supporter between the often circle copper pipe of water cooling tube.This patent application also discloses preparation method, bag
Include following steps:
(1) spiral water-cooling is installed between left and right metal die；(2) described water cooling tube is preheated to 300～
350 degrees Celsius；(3) aluminum is heated to 700～850 degrees Celsius, is subsequently adding 6 .5%～the Si of 7 .5%, 0 .2%～0
.4% Mg and 0 .03%～the La of 0 .07%, obtains molten aluminium alloy；(4) described molten aluminium alloy is filled with left and right gold
Belonging between the die cavity of mould, pouring temperature is 700～720 degrees Celsius；(5) after molten aluminum is alloy hardening, left and right mode division from,
Obtain motor housing blank；(6) artificial aging is used to process described motor housing blank.
In this water cooling motor housing preparation method, spiralization copper tube water channel is imbedded at the hollow cylinder of aluminium alloy
Wall in, there is following deficiency:
The casing of two kinds of different materials composition is likely to be due to the different physical propertys such as the expansion rate of different materials and right
Whole product quality produces impact, it addition, copper tube may deformation and cracking in casting process.
Summary of the invention
This utility model is for the deficiency in current water cooling motor housing preparation method, it is provided that a kind of casting new-energy automobile
The mould of water cooling motor housing, on the mold foundation of current low pressure casting new-energy automobile water cooling motor housing, in low die casting
In the annular space of modeling tool, a core spiral channel is set, and a vacuum tube is set.
The technical scheme that this utility model is used is: a kind of mould casting new-energy automobile water cooling motor housing, is
A kind of low pressure casting die, including side form and upper die and lower die, merges side form and the ring of upper die and lower die formation motor housing shape
Shape space；In described annular space, it is additionally provided with core spiral channel, described lower mold is provided with locating slot, described
Locating slot in have pipeline connect external vacuum pump.
Set up vacuum machine assistant formation, loose porous core is formed exhaust passage, extract out and continue after being wrapped up by aluminum water
The gas produced, the precision that lifting motor shell quality controls.
Further, in the mould of above-mentioned casting new-energy automobile water cooling motor housing: described core spiral channel
There is the pitch of the spiral channel of the water cooling motor housing designed, water channel diameter, in core spiral channel, lay reinforcement
The conical rustless steel location mold insert of effect, mold insert hollow.
Further, in the mould of above-mentioned casting new-energy automobile water cooling motor housing: described core spiral channel
There is the pitch of the spiral channel of the water cooling motor housing designed, water channel diameter, respectively lay 1 in core spiral channel both sides
Aluminum strip is as reinforcement.
Further, in the mould of above-mentioned casting new-energy automobile water cooling motor housing: described core spiral channel
Adjacent water channel between be encased inside aluminium flake.
Accompanying drawing explanation
Fig. 1 is the motor case sectional view of embodiment 1 casting.
Fig. 2 is the resin sand core spiral channel front view that embodiment 1 is used.
Fig. 3 is the resin sand core spiral channel front view that embodiment 1 is used.
Fig. 4 is the resin sand core spiral channel front view that embodiment 2 is used.
Fig. 5 is the resin sand core spiral channel axonometric chart that embodiment 2 is used.
Detailed description of the invention
In order to make the purpose of this utility model, technical scheme and advantage clearer, below in conjunction with accompanying drawing and enforcement
Example, is further elaborated to this utility model.Should be appreciated that specific embodiment described herein is only in order to explain
This utility model, is not used to limit this utility model.
Embodiment 1, the sectional view of the water cooling motor housing that the present embodiment is cast is as it is shown in figure 1, this water-cooled machine is permissible
Being used as the motor of new forms of energy power vehicle, since it is desired that carry out water-cooling cooling, therefore, its shell is a kind of hollow
Tubular, arranges screw type water channel in wall.There is in the wall of the motor housing 1 of hollow cylinder shape spiral water channel 2, spiral shell
The intake-outlet 3 of rotation shape water channel 2 is arranged on shell, can be connected with water tank or other water supply installation.In order to set in making wall
Put spiral channel 2, therefore, when carrying out low pressure casting, need after the side form of low pressure casting die and upper die and lower die close up,
The spiral channel model that one resin sand core does is set in annular space wherein and is referred to as resin sand core spiral channel 2, such as Fig. 2
Shown in Fig. 3, the shape of resin sand core spiral channel 2, pitch and diameter with make wall in arrange spiral channel 2 consistent, therefore, make
Use same reference.Resin sand core spiral channel has the pitch of spiral channel 2 of the water cooling motor housing 1 designed, water
Road diameter, lays the conical rustless steel location mold insert of reinforcement effect, mold insert hollow in resin sand core spiral channel 2.By
It is easily damaged after the molding of resin sand core water channel 2 own, it has not been convenient to move, therefore, the limit of resin sand core water channel 2 is arranged and adds
Strong muscle 5, is presented herein below location aerofluxus post 4 at reinforcement 5, and it combines with the hole, location in low pressure casting die, makes resin sand core
Can be quick installed in low pressure casting die.
The water cooling motor housing casting method of the present embodiment comprises the following steps:
1., before the making of resin sand core spiral channel, in core mold, lay the conical rustless steel of reinforcement effect
Location mold insert, mold insert hollow, neighboring is uniformly drilled with through hole, penetrates sand, heats mould to 200 ° C, makes resin sand core be heated carbonization
Molding.
2. the shape of spiral channel and the number of turns, and the shape in cross section determines by core mold, the reinforcement of core is also
Being determined by core mold, through the fixing in 2 sides of main reinforcement often encloses water channel, mold insert and core is connected as by reinforcement
Integrally.
3. resin sand core spiral channel with the hands holds 2 side reinforcements, is placed in low pressure casting die.Mold insert is directed at
Snapping onto in the locating slot of lower mold, lower mold locating slot has pipeline to connect external vacuum pump.
4. merging low pressure casting die side form and upper and lower mould, mould holder handles resin sand core spiral channel, starts vacuum pump,
Low-pressure casting process, injects aluminum liquid, upper mold air cooling system cooling forming, die sinking, closes vacuum pump, take the motor after molding away
Shell, processes.
5. after Technology for Heating Processing, resin sand core carbonization fragmentation, empty core and form spiral channel cavity, fetch true
Empty location rustless steel mold insert, resin sand core recycles.
6. after follow-up lathe, boring machine add operation and polishing sandblasting, the new-energy automobile of wall internal coiling water channel cooling
Motor housing, completes.
Being that a kind of being suitable for is produced in batches in the present embodiment, qualification rate is high, the New energy automobile motor shell of low cost and system
Make method.Selecting aluminum alloy low-pressure casting process, be suitable for batch and produce continuously, the shape of spiral channel uses resin sand core true
Fixed, this is the feature utilizing resin easy-formation, and core can also use other core, as long as molding is the most permissible, in low die casting
Placing the resin sand core of spiral channel in modeling tool, liquid aluminium water shoot mould, one-shot forming, liquid aluminium water wraps up core,
Cool down molding through mould air cooling system, form airtight cavity after taking out core, form uniform spiral channel.Ensure that motor casing is resistance to
High temperature, high humidity, burn into strong motion environment, airtight water-tight.
When in the present embodiment, the spiral channel resin sand core number of turns is many, water channel cross section is very thin, and core is machine on carrying and be die-filling
Easily snap off during operation, cause waste, reduce the number of turns and widen water channel sectional area, strengthen the mechanical strength of resin sand core, Ke Yibao
Card core carrying and die-filling operate the computer time do not fracture, low pressure casting eliminates Feeder Design, and exhausting problem is motor housing
The primary factor of influence of qualification rate, discharges a large amount of gas in mould small space in the short time, use passage and venting plug
Effect is the most undesirable, sets up vacuum machine and strengthens capacity, stand-by motor shell casting.Resin sand core is connected with vacuum machine
Joint, for conical design, when core is laid in casting mould, play core positioning action.
Using after said structure, the method for this embodiment has the advantage, that 1, the qualification rate of motor casing is substantially improved,
2, facilitate core place in mould and position, reduce operation complexity, 3, set up vacuum machine assistant formation, by loose porous
Core forms exhaust passage, extracts the gas continuing to produce after being wrapped up by aluminum water out, the precision that lifting motor shell quality controls.
Embodiment 2, the present embodiment is the casting method of the New energy automobile motor shell of a kind of wall internal coiling water channel cooling.
In the same manner as in Example 1, in low pressure casting die pacify spiral channel dress resin sand core, this resin sand core such as Fig. 4 with
Shown in Fig. 5, resin sand core spiral channel 2 has the pitch of the spiral channel of the water cooling motor housing designed, water channel diameter,
1 aluminum strip is respectively laid as reinforcement 5 in resin sand core spiral channel 2 both sides, resin sand core spiral channel 2 adjacent water channel it
Between be encased inside aluminium flake 6.Here aluminum strip and aluminium flake are added in aluminum water when casting, from a part for the motor housing for preparing,
Aluminum strip is also used as the reinforcing section of casing.
The New energy automobile motor shell of a kind of wall internal coiling water channel cooling prepared by the present embodiment.This motor housing includes
Housing, water-cooled layer and end cap, housing is hollow cylinder, and inner walls side face is provided with equally distributed consistent with motor direction of rotation
Rifling；Housing wall in be evenly equipped with spiral channel, the shape of spiral channel uses spiral resin sand core to determine, spiral
Reinforcement 5 is placed as shown in Figure 4, Figure 5 in resin sand core both sides.In between the water channel that spiral resin sand core spiral channel 2 is adjacent
Place aluminum strip 6.
In this utility model, the New energy automobile motor shell 1 of wall internal coiling water channel cooling selects aluminum alloy low-pressure casting
Technique manufactures, and this mode is suitable for batch and produces continuously, and the shape of spiral channel 2 uses spiral resin sand core to determine, low
Place the spiral resin sand core of spiral channel 2 in pressure casting mould, liquid aluminium water shoot mould, one-shot forming, liquid aluminium water
Parcel spiral resin sand core, cools down molding through mould air cooling system, forms airtight cavity, formed all after taking out spiral resin sand core
Even spiral channel 2.Guarantee motor casing is high temperature resistant, high humidity, burn into strong motion environment, airtight water-tight.In order to realize above-mentioned mesh
, in the present embodiment, reinforcement 5 is placed in spiral resin sand core both sides, stops spiral channel move when liquid aluminium water is shot and become
Shape, the positioning action when spiral resin sand core is placed in mould, it is simple to position and lay.Aluminum strip 6 is placed in core, used logical
A plurality of spiral channel, increases sand core strength, stops spiral channel to rupture when liquid aluminium water is shot, and produces defective work.This
Sample, has reinforcement 5 to run through in concrete spiral channel 2 spiral channel 2 from top to bottom, at present, is each in spiral channel 2 both sides
One is had to be threaded to the reinforcement that last spiral runs through from first.Or in spiral channel 2, it is additionally provided with aluminum strip, aluminum strip
Support helix water channel 2 wall in spiral channel 2, one piece of aluminum strip runs through 2 or 3 and encloses adjacent spiral channel 2.
The present embodiment uses such spiral channel 2 mainly to consider handling ease, as follows in the course of processing:
1., before the making of resin sand core spiral channel, in core mold, lay 2 aluminum strips of reinforcement effect, penetrate sand,
Heating mould to 200 ° C, makes resin sand core be heated carbonization molding. and as embodiment, receipt mould to 200 ° C is ability here
The temperature that territory is conventional, in practice process, controls between 150-300 ° of C by arbitrary temperature.
2. the shape of spiral channel and the number of turns, and the shape in cross section determines by core mold.The reinforcement of core is also
Being determined by core mold, through the fixing in 1 side of main reinforcement often encloses spiral channel.
3. resin sand core spiral channel with the hands holds 2 side reinforcements, is placed in low pressure casting die.
4. merging low pressure casting die side form and upper and lower mould, mould holder handles resin sand core spiral channel, low pressure casting work
Skill, injects aluminum liquid, cooling forming, die sinking, takes the motor casing after molding away, process.
5. after Technology for Heating Processing, resin sand core carbonization fragmentation, empty core and form spiral channel cavity.
6. after follow-up lathe, boring machine add operation and polishing sandblasting, the new-energy automobile of wall internal coiling water channel cooling
Motor housing, completes.
Claims (4)
1. cast a mould for new-energy automobile water cooling motor housing, be a kind of low pressure casting die, including side form and upper mold,
Lower mold, merges side form and the annular space of upper die and lower die formation motor housing shape；It is characterized in that: empty in described annular
It is additionally provided with core spiral channel between, described lower mold is provided with locating slot, have pipeline to connect in described locating slot
External vacuum pump.
The mould of casting new-energy automobile water cooling motor housing the most according to claim 1, it is characterised in that: described sand
Core spiral channel has the pitch of the spiral channel of the water cooling motor housing designed, water channel diameter, in core spiral channel
Lay the conical rustless steel location mold insert of reinforcement effect, mold insert hollow.
The mould of casting new-energy automobile water cooling motor housing the most according to claim 1, it is characterised in that: described sand
Core spiral channel has the pitch of the spiral channel of the water cooling motor housing designed, water channel diameter, at core spiral channel two
1 aluminum strip is respectively laid as reinforcement in side.
4. according to the mould of the casting new-energy automobile water cooling motor housing described in claim 1 or 2 or 3, it is characterised in that: institute
It is encased inside aluminium flake between the adjacent water channel of the core spiral channel stated.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201620838237.1U CN205869433U (en) | 2016-08-04 | 2016-08-04 | Mould of casting new energy automobile water cooled machine shell |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201620838237.1U CN205869433U (en) | 2016-08-04 | 2016-08-04 | Mould of casting new energy automobile water cooled machine shell |
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| Publication Number | Publication Date |
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| CN205869433U true CN205869433U (en) | 2017-01-11 |
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| Application Number | Title | Priority Date | Filing Date |
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| CN201620838237.1U Active CN205869433U (en) | 2016-08-04 | 2016-08-04 | Mould of casting new energy automobile water cooled machine shell |
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Cited By (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107671244A (en) * | 2017-11-09 | 2018-02-09 | 广东肇庆动力金属股份有限公司 | A kind of motor casing core and its manufacture method comprising water channel |
| CN107685143A (en) * | 2016-08-04 | 2018-02-13 | 佛山市南海力格模具五金有限公司 | A kind of casting method and mould of new-energy automobile water cooling motor housing |
| CN107716900A (en) * | 2017-11-29 | 2018-02-23 | 广东肇庆动力金属股份有限公司 | A kind of motor casing low pressure casting is layered water-cooling process |
| CN108800696A (en) * | 2018-06-19 | 2018-11-13 | 苏州富士特金属薄板制品有限公司 | A kind of die material quickly cooling device |
| CN110142391A (en) * | 2019-05-29 | 2019-08-20 | 惠州市威盛工业有限公司 | A kind of straight water channel mould structure and its processing method |
| CN110918881A (en) * | 2019-11-29 | 2020-03-27 | 中国第一汽车股份有限公司 | Method for manufacturing spiral cooling water jacket sand mold |
-
2016
- 2016-08-04 CN CN201620838237.1U patent/CN205869433U/en active Active
Cited By (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107685143A (en) * | 2016-08-04 | 2018-02-13 | 佛山市南海力格模具五金有限公司 | A kind of casting method and mould of new-energy automobile water cooling motor housing |
| CN107671244A (en) * | 2017-11-09 | 2018-02-09 | 广东肇庆动力金属股份有限公司 | A kind of motor casing core and its manufacture method comprising water channel |
| CN107716900A (en) * | 2017-11-29 | 2018-02-23 | 广东肇庆动力金属股份有限公司 | A kind of motor casing low pressure casting is layered water-cooling process |
| CN108800696A (en) * | 2018-06-19 | 2018-11-13 | 苏州富士特金属薄板制品有限公司 | A kind of die material quickly cooling device |
| CN110142391A (en) * | 2019-05-29 | 2019-08-20 | 惠州市威盛工业有限公司 | A kind of straight water channel mould structure and its processing method |
| CN110142391B (en) * | 2019-05-29 | 2024-03-15 | 惠州古川科技有限公司 | Straight water channel mold structure and processing method thereof |
| CN110918881A (en) * | 2019-11-29 | 2020-03-27 | 中国第一汽车股份有限公司 | Method for manufacturing spiral cooling water jacket sand mold |
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