CN108273976A - A kind of profiling Special spray coating method and device for die casting gear box casing - Google Patents
A kind of profiling Special spray coating method and device for die casting gear box casing Download PDFInfo
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- CN108273976A CN108273976A CN201810252422.6A CN201810252422A CN108273976A CN 108273976 A CN108273976 A CN 108273976A CN 201810252422 A CN201810252422 A CN 201810252422A CN 108273976 A CN108273976 A CN 108273976A
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- die casting
- spray
- profiling
- siphunculus
- die
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B22—CASTING; POWDER METALLURGY
- B22D—CASTING OF METALS; CASTING OF OTHER SUBSTANCES BY THE SAME PROCESSES OR DEVICES
- B22D17/00—Pressure die casting or injection die casting, i.e. casting in which the metal is forced into a mould under high pressure
- B22D17/20—Accessories: Details
- B22D17/2007—Methods or apparatus for cleaning or lubricating moulds
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- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Coating By Spraying Or Casting (AREA)
Abstract
It should include the following steps in the profiling Special spray coating method of die casting gear box casing the invention discloses a kind of：（1）Die casting carries out die casting to casting, and die sinking, robot take out casting, is sprayed to die casting with universal spray equipment, after the completion of spraying, using thermal imaging system Measurement die temperature, to mold temperature analysis, record；（2）Image acquisition is carried out to die casting cavity by scanning, solid data is obtained to image procossing, and prepare profiling spray equipment；（3）Nozzle is set on profiling spray equipment；（4）Profiling spray equipment is stretched into die casting cavity；（5）By spray robot program, the quantity for spray and spray time in each circuit on profiling spray equipment are set；（6）Die casting is sprayed.The present invention has ensured attachment and thickness of the releasing agent in die surface, and spraying is accurate, efficient, and service life is long, and the presentation quality of entire casting is also improved.
Description
Technical field
The present invention relates to people's spray process technical fields, more particularly to a kind of profiling for die casting gear box casing
Special spray coating method and device.
Background technology
High-pressure casting is the main mode of production of current aluminium alloy gear box casing.With the high speed development of automobile industry,
It is stringenter to the quality requirement of aluminium alloy gear box casing.With the development of speed change box technology, aluminium alloy gear box casing
Structure becomes increasingly complex, and product quality requires to step up, these all propose requirements at the higher level to high-pressure casting technique.Using imitative
Shape Special spray coating can guarantee the spraying effect of each position of mold, optimize spraying process, ensure product quality, improve production effect
Rate and board utilization rate.
1 high-pressure casting spraying main function be：
1) protective film is formed in die surface, reduces the adhesion strength between casting and mold, casting is made smoothly to deviate from from mold,
It avoids molten metal from directly washing away mold cavity and whose surfaces, improves die life, if demoulding agent of mould protective film film forming effect
Fruit is bad, and casting and die surface ejection resistance is made to increase, and casting is bonded with mold phase reciprocity, die surface adhered to compared with
More aluminium alloys, surface are whitened, and cast(ing) surface occurs coarse, the surface quality problems such as pulls, when sticking to mould is serious, casting table
Face compacted zone can easily cause machine to add leakage by damaged or drawing crack.
2) so that casting and mold is kept good greasy property when high temperature, reduce the friction of casting and mold molding position,
Extend the service life of mold, die casting depth chamber and the excessive position of package power, when spraying should use low dilution ratio and increase quantity for spray
Equal measures, make the protection film thickness of die surface increase.
3) outer cold, supplement heat rejecter mold is carried out to die surface, mold temperature is made to keep balance, reduced heat in mold and answer
The generation of power and the accumulation of residual stress reduce mold temperature, make casting as possible in the case where ensureing the visual quality of casting
Stripping result is good；
4) die surface is dried up, residual liquid and impurity is removed, avoids residual liquid in press casting procedure, residual liquid
If vaporization, a large amount of water vapour is will produce, cast-internal, which generates stomata, causes product machine to add leakage and stomata.
2 casting quality problems and analysis
The quality problems of 2.1 casting
Aluminium alloy gear box casing in production, checks the visual quality of casting, it is found that there is burning in deep cavity portion position on the right side of casting
Wound, the serious position in part misrun phenomenon occurs or even small crackle occurs in wedge angle position, and product Burn situation is shown in.By
Inspection to die casting corresponding position finds that die casting surface mold sticking is serious at this, and die insert surface is white
Color aluminium alloy wraps up, and mold sticking to mould situation is shown in.When Die Casting, product is caused to be pulled seriously.By analysis, depth chamber is located at two
Sliding block on the right side of mold, depth is about 90mm, is pulled the inside that position is insert, is not easy the position being sprayed onto.
The analysis of 2.2 general sprayings
In order to adapt to multi-item production, the sprayer that early period, our company used is universal design, not according to the knot of single mold
Structure contoured design.By the observation and analysis to spraying process of product, the position of the die surface protrusion of portioned product is difficult to
It sprays to, spraying process path is complicated, and Die Casting cycle time increases, and sprays bad die surface and is not formed well
Protective film be the main reason for product is pulled.Mold is after producing a cover half time, since spraying is insufficient, spraying point is not inconsistent original
Cause, die surface will appear viscous aluminium, and cast(ing) surface is caused to pull or local sticking to mould when casting demoulds.
2.3 mold temperatures are analyzed
In die casting consecutive production, die casting machine die sinking, robot take out casting, after the completion of spraying, use thermal imaging immediately
Instrument Measurement die temperature, through measuring and analyzing, 120 DEG C of the minimum temperature of die surface, maximum temperature is 270 DEG C, thermal imaging system
Picture is shown in Fig. 3.The mold temperature difference is big, causes mold temperature unbalance, and the viscous aluminium of portion burn is pulled and cold shut.And it is in mold
Multi-slide structure, due to sliding block temperature difference, sliding block expands with heat and contract with cold, and mold fit clearance is caused to change, and when injection causes
Larger overlap, the pressure loss cause internal soundness bad, and die life reduces.
Invention content
Goal of the invention：The purpose of the present invention is to solve deficiency in the prior art, provides and a kind of having ensured releasing agent
Attachment in die surface and thickness, precisely, comprehensively, spray time is short, efficient for spraying, and one kind of die life length is answered
In the profiling Special spray coating method and device of die casting gear box casing.
Technical solution：The present invention is a kind of should be including following in the profiling Special spray coating method of die casting gear box casing
Step：
（1）Die casting carries out die casting to casting, and after the completion of die casting, die casting machine die sinking, robot take out casting, and use is universal
Spray equipment sprays die casting, after the completion of spraying, thermal imaging system Measurement die temperature is used immediately, to mold temperature point
Analysis, record；
（2）Image acquisition is carried out to die casting cavity by scanning, solid data is obtained to image procossing, forms geometric graph
Shape, and prepare profiling spray equipment；
（3）According to step（1）Nozzle is arranged on profiling spray equipment in the data of acquisition, wherein on profiling spray equipment with pressure
The difficult place of corresponding demoulding in casting mould is arranged nozzle, and nozzle setting is reduced in general position；
（4）Profiling spray equipment is stretched into die casting cavity；
（5）By spray robot program, the quantity for spray and spray time in each circuit on profiling spray equipment are set；
（6）Die casting is sprayed.
Further improvement of the present invention is, step（4）In, the spray robot program area high to temperature in die casting
Domain extends spray time, increases quantity for spray.
The present invention is a kind of should be on front side of the profiling specialized spray-coating apparatus of die casting gear box casing, including ontology, ontology
Centre is equipped with multigroup fixed jet pipe, and jet pipe top is equipped with the first atomizer, is equipped with the first siphunculus at ontology forward edge, and first
Siphunculus top is equipped with cammed surface, and the cammed surface of the first siphunculus is equipped with the second atomizer, is equipped between the first siphunculus and jet pipe
Second siphunculus, the second siphunculus top are equipped with cammed surface, and the cammed surface of the second siphunculus is equipped with the second atomizer；
Multigroup fixed jet pipe is equipped on rear side of ontology, the jet pipe top on rear side of ontology is equipped with the first atomizer.
Further improvement of the present invention is, jet pipe is hollow rectangular-shape, and the cammed surface of the first siphunculus is towards ontology
Anterior midline is arranged, and the anterior midline of cammed surface towards the ontology of the second siphunculus is arranged.
Further improvement of the present invention is that the height of the second siphunculus is more than the height of the first siphunculus.
Further improvement of the present invention is that second on the second atomizer, the second siphunculus on the first siphunculus is atomized
Nozzle can be replaced lengthening jet pipe.
Further improvement of the present invention is, third siphunculus is equipped between the second adjacent siphunculus, third siphunculus top is set
There is cammed surface, the cammed surface on third siphunculus top, which is equipped with, lengthens jet pipe.
Further improvement of the present invention is that quantity, the layout of fixed jet pipe are determined according to the shape contour of die casting,
The angle of cammed surface is determined also according to the shape contour of die casting, and long jet pipe is equipped between fixed jet pipe.
Advantageous effect：
By the analysis to mould structure and casting quality problem, according to mould structure contoured design sprayer, profiling sprays energy
Mold cavity is enough stretched into, for spraying difficult point, the special spraying of dead point setting, is precisely sprayed.Profiling sprayer can spray whole simultaneously
A mold cavity not only ensure that mold everywhere can be sprayed onto, and entire die cavity sprays simultaneously, and the time of spraying is reduced to
About 30s.According to product structure and the production process problem, the more setting nozzles in difficult place are demoulded, general position is reduced
Nozzle is arranged.Profiling Special spray coating, can be independent by spray robot program according to a plurality of circuit is provided with the case where mold
The quantity for spray in each circuit is set, and the spray time several seconds is appropriately extended in the region high to temperature, increases quantity for spray, according to casting
Presentation quality and mold temperature are precisely controlled the quantity for spray and spray time of every primary Ioops.Suitable temperature has ensured that releasing agent exists
The attachment of die surface and thickness, in the production in later stage, the position of casting does not pull phenomenon, the appearance of entire casting
Quality is also improved.
Description of the drawings
Fig. 1 is the structural diagram of the present invention；
Wherein, 1- ontologies；2- jet pipes；The first atomizers of 3-；The first siphunculus of 4-；5- cammed surfaces；The second siphunculus of 6-；The second mists of 7-
Change nozzle；8- third siphunculus；9- long jet pipes.
Specific implementation mode
Illustrate that embodiments of the present invention, those skilled in the art can be by this explanations by particular specific embodiment below
Content disclosed by book understands other advantages of the present invention easily.
Embodiment 1, it is a kind of to include the following steps in the profiling Special spray coating method of die casting gear box casing：
（1）Die casting carries out die casting to casting, and after the completion of die casting, die casting machine die sinking, robot take out casting, and use is universal
Spray equipment sprays die casting, after the completion of spraying, thermal imaging system Measurement die temperature is used immediately, to mold temperature point
Analysis, record；
（2）Image acquisition is carried out to die casting cavity by scanning, solid data is obtained to image procossing, forms geometric graph
Shape, and prepare profiling spray equipment；
（3）According to step（1）Nozzle is arranged on profiling spray equipment in the data of acquisition, wherein on profiling spray equipment with pressure
The difficult place of corresponding demoulding in casting mould is arranged nozzle, and nozzle setting is reduced in general position, rational to be laid out, and improves effect
The utilization rate of rate and spraying；
（4）Profiling spray equipment is stretched into die casting cavity, can realize comprehensive spraying；
（5）By spray robot program, the quantity for spray and spray time in each circuit on profiling spray equipment are set,
The determination of quantity for spray is carried out by measuring and calculating, spraying is uniform, spraying effect is good, not only ensure that mold everywhere can be sprayed-on
It arrives, entire die cavity sprays simultaneously, and the time of spraying is reduced to about 30s；
（6）Die casting is sprayed.
Further improvement of the present invention is, step（4）In, the spray robot program area high to temperature in die casting
Domain extends spray time, increases quantity for spray, and solve that spraying difficult point, dead point be not easy to spray asks that spraying is accurate.
Such as Fig. 1, the present invention is a kind of should be in the profiling specialized spray-coating apparatus of die casting gear box casing, including ontology 1, this
The front side of body 1 is intermediate to be equipped with multigroup fixed jet pipe 2, and 2 top of jet pipe is equipped with the first atomizer 3, and the is equipped at 1 forward edge of ontology
One siphunculus 4,4 top of the first siphunculus are equipped with cammed surface 5, and the cammed surface 5 of the first siphunculus 4 is equipped with the second atomizer 7, and first is logical
The second siphunculus 6 is equipped between pipe 4 and jet pipe 2,6 top of the second siphunculus is equipped with cammed surface 5, and the cammed surface 5 of the second siphunculus 6 is equipped with
Second atomizer 7；The setting of cammed surface 5 so that the angle of atomizer is adjusted, and the spraying of turning difficult point is facilitated.
1 rear side of ontology is equipped with multigroup fixed jet pipe 2, and 2 top of jet pipe of 1 rear side of ontology is equipped with the first atomizer 3.
Further improvement of the present invention is, jet pipe 2 is hollow rectangular-shape, and the cammed surface 5 of the first siphunculus 4 is towards ontology
The anterior midline of 1 anterior midline setting, cammed surface 5 towards the ontology 1 of the second siphunculus 6 is arranged.
Further improvement of the present invention is that the height of the second siphunculus 6 is more than the height of the first siphunculus 4, different height
Setting so that the range of spraying is more comprehensive, and spray efficiency is high, has ensured attachment and thickness of the releasing agent in die surface.
Further improvement of the present invention is, the second mist on the second atomizer 7, the second siphunculus 6 on the first siphunculus 4
Change nozzle 7 and can be replaced lengthening jet pipe.
Further improvement of the present invention is, third siphunculus 8,8 top of third siphunculus are equipped between the second adjacent siphunculus 6
Equipped with cammed surface 5, the cammed surface 5 on 8 top of third siphunculus, which is equipped with, lengthens jet pipe.
Further improvement of the present invention is：Quantity, the layout of fixed jet pipe 2, determine according to the shape contour of die casting,
The angle of cammed surface 5 is determined also according to the shape contour of die casting, and long jet pipe 9 is equipped between fixed jet pipe 2.
Table 1 is influence of the spraying effect to mold temperature.
Influence of 1 spraying effect of table to mold temperature
From table 1 and embodiment 1：
1）Profiling sprayer can effectively spray to difficult point and dead point on the mold that ordinary paint sprayer cannot spray to, reduce casting
Sticking to mould occurs with mold；
2）Mold temperature is very big on the influence of aluminium alloy compression casting sticking to mould, under the premise of ensureing the visual quality of casting, makes mold as possible
Temperature reduces；
3）The good nozzle of atomizing effect can effectively avoid the generation of spraying " black hole ", ensure the film-formation result of mold.
By embodiment 1 it is found that the present invention finally sprays the mold of completion, suitable temperature has ensured releasing agent in mold table
The attachment in face and thickness, in the production in later stage, the position of casting does not pull phenomenon, the presentation quality of entire casting
Improved.
Above-mentioned specific implementation mode, technical concept and structure feature only to illustrate the invention, it is therefore intended that allow and be familiar with this
The stakeholder of item technology can implement according to this, but the above content is not intended to limit protection scope of the present invention, every according to this hair
Any equivalent change or modification made by bright Spirit Essence, should all fall under the scope of the present invention.
Claims (8)
1. a kind of should be in the profiling Special spray coating method of die casting gear box casing, which is characterized in that include the following steps：
（1）Die casting carries out die casting to casting, and after the completion of die casting, die casting machine die sinking, robot take out casting, and use is universal
Spray equipment sprays die casting, after the completion of spraying, thermal imaging system Measurement die temperature is used immediately, to mold temperature point
Analysis, record；
（2）Image acquisition is carried out to die casting cavity by scanning, solid data is obtained to image procossing, forms geometric graph
Shape, and prepare profiling spray equipment；
（3）According to step（1）Nozzle is arranged on profiling spray equipment in the data of acquisition, wherein on profiling spray equipment with pressure
The difficult place of corresponding demoulding in casting mould is arranged nozzle, and nozzle setting is reduced in general position；
（4）Profiling spray equipment is stretched into die casting cavity；
（5）By spray robot program, the quantity for spray and spray time in each circuit on profiling spray equipment are set；
（6）Die casting is sprayed.
2. it is according to claim 1 it is a kind of should be in the profiling Special spray coating method of die casting gear box casing, feature
It is, step（4）In, the spray robot program region high to temperature in die casting extends spray time, increases quantity for spray.
3. a kind of should be in the profiling specialized spray-coating apparatus of die casting gear box casing, including ontology（1）, which is characterized in that institute
State ontology（1）Multigroup fixed jet pipe is equipped among front side（2）, the jet pipe（2）Top is equipped with the first atomizer（3）, described
Ontology（1）The first siphunculus is equipped at forward edge（4）, first siphunculus（4）Top is equipped with cammed surface（5）, described first is logical
Pipe（4）Cammed surface（5）It is equipped with the second atomizer（7）, first siphunculus（4）With jet pipe（2）Between to be equipped with second logical
Pipe（6）, second siphunculus（6）Top is equipped with cammed surface（5）, second siphunculus（6）Cammed surface（5）It is equipped with the second mist
Change nozzle（7）；
The ontology（1）Rear side is equipped with multigroup fixed jet pipe（2）, the ontology（1）The jet pipe of rear side（2）Top is equipped with the first mist
Change nozzle（3）.
4. it is according to claim 3 it is a kind of should be in the profiling specialized spray-coating apparatus of die casting gear box casing, feature
It is, the jet pipe（2）For hollow rectangular-shape, first siphunculus（4）Cammed surface（5）Towards ontology（1）Front side in
Line is arranged, second siphunculus（6）Cammed surface（5）Towards ontology（1）Anterior midline setting.
5. it is according to claim 3 or 4 it is a kind of should be special in the profiling specialized spray-coating apparatus of die casting gear box casing
Sign is, second siphunculus（6）Height be more than the first siphunculus（4）Height.
6. it is according to claim 3 it is a kind of should be in the profiling specialized spray-coating apparatus of die casting gear box casing, feature
It is, first siphunculus（4）On the second atomizer（7）, the second siphunculus（6）On the second atomizer（7）Alternatively
To lengthen jet pipe.
7. it is according to claim 6 it is a kind of should be in the profiling specialized spray-coating apparatus of die casting gear box casing, feature
It is, adjacent second siphunculus（6）Between be equipped with third siphunculus（8）, the third siphunculus（8）Top is equipped with cammed surface
（5）, the third siphunculus（8）The cammed surface on top（5）It is equipped with and lengthens jet pipe.
8. it is according to claim 3 it is a kind of should be in the profiling specialized spray-coating apparatus of die casting gear box casing, feature
It is, the jet pipe（2）Quantity, layout, according to the shape contour of die casting determine, the cammed surface（5）Angle also root
It is determined according to the shape contour of die casting, the jet pipe（2）Between be equipped with long jet pipe 9.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201810252422.6A CN108273976A (en) | 2018-03-26 | 2018-03-26 | A kind of profiling Special spray coating method and device for die casting gear box casing |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201810252422.6A CN108273976A (en) | 2018-03-26 | 2018-03-26 | A kind of profiling Special spray coating method and device for die casting gear box casing |
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| CN108273976A true CN108273976A (en) | 2018-07-13 |
Family
ID=62810397
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|---|---|---|---|
| CN201810252422.6A Pending CN108273976A (en) | 2018-03-26 | 2018-03-26 | A kind of profiling Special spray coating method and device for die casting gear box casing |
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Cited By (6)
| Publication number | Priority date | Publication date | Assignee | Title |
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| CN108994273A (en) * | 2018-08-29 | 2018-12-14 | 重庆财鑫工贸有限责任公司 | Spraying absorbs temperature measuring equipment |
| CN110899650A (en) * | 2019-12-18 | 2020-03-24 | 浙江上风高科专风实业有限公司 | High-pressure casting process of weldless axial flow fan |
| CN111005051A (en) * | 2018-10-08 | 2020-04-14 | 株洲中车时代电气股份有限公司 | Preparation method of metal piece surface composite coating |
| CN112620607A (en) * | 2021-01-29 | 2021-04-09 | 深圳市宝田精工科技有限公司 | High-efficient demoulding mechanism of die mould product |
| CN113976372A (en) * | 2021-11-29 | 2022-01-28 | 广东鸿图科技股份有限公司 | Integrated board spraying system |
| CN116197376A (en) * | 2022-12-26 | 2023-06-02 | 太仓市荟轩机械有限公司 | Die casting forming device and die casting method for thin-wall motor shell |
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| Publication number | Priority date | Publication date | Assignee | Title |
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| CN108994273A (en) * | 2018-08-29 | 2018-12-14 | 重庆财鑫工贸有限责任公司 | Spraying absorbs temperature measuring equipment |
| CN111005051A (en) * | 2018-10-08 | 2020-04-14 | 株洲中车时代电气股份有限公司 | Preparation method of metal piece surface composite coating |
| CN110899650A (en) * | 2019-12-18 | 2020-03-24 | 浙江上风高科专风实业有限公司 | High-pressure casting process of weldless axial flow fan |
| CN112620607A (en) * | 2021-01-29 | 2021-04-09 | 深圳市宝田精工科技有限公司 | High-efficient demoulding mechanism of die mould product |
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| CN113976372A (en) * | 2021-11-29 | 2022-01-28 | 广东鸿图科技股份有限公司 | Integrated board spraying system |
| CN113976372B (en) * | 2021-11-29 | 2024-01-26 | 广东鸿图科技股份有限公司 | Integrated board spraying system |
| CN116197376A (en) * | 2022-12-26 | 2023-06-02 | 太仓市荟轩机械有限公司 | Die casting forming device and die casting method for thin-wall motor shell |
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Effective date of registration: 20181207 Address after: 226300 Xingyuan West Road 777, Nantong High-tech Industrial Development Zone, Jiangsu Province Applicant after: Guangdong Hongtu (Nantong) Die-Casting Co., Ltd. Applicant after: Guangdong Hongtu Technology (Holdings) Co., Ltd. Address before: 226300 Xingyuan West Road, Nantong High-tech Industrial Development Zone, Jiangsu Province, 777 Applicant before: Guangdong Hongtu (Nantong) Die-Casting Co., Ltd. |
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| RJ01 | Rejection of invention patent application after publication | ||
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Application publication date: 20180713 |