CN106925718A - A kind of digitized manufacturing system method of casting wooden model - Google Patents
A kind of digitized manufacturing system method of casting wooden model Download PDFInfo
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- CN106925718A CN106925718A CN201710195779.0A CN201710195779A CN106925718A CN 106925718 A CN106925718 A CN 106925718A CN 201710195779 A CN201710195779 A CN 201710195779A CN 106925718 A CN106925718 A CN 106925718A
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- casting
- wooden model
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- machine tool
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B22—CASTING; POWDER METALLURGY
- B22C—FOUNDRY MOULDING
- B22C7/00—Patterns; Manufacture thereof so far as not provided for in other classes
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- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
Abstract
The invention discloses a kind of digitized manufacturing system method of casting wooden model, according to casting material performance and the pre- casting sand type performance taken of casting, the shrinkage factor of casting and the running gate system of casting are determined；Determine casting point mould, the shape and size of wooden model Each part, set up the three-dimensional CAD mathematical model of wooden model and generate Digit Control Machine Tool G code, Digit Control Machine Tool is processed according to G code to timber, wooden model is obtained；Using obtained Wooden Pattern Making casting mold, casting mold assembling is obtained casting after cast；Obtained casting is detected, casting detection is qualified, and Wooden Pattern Making terminates；The present invention increases substantially production efficiency, shorten the time of exploitation wooden model needed for the production in enormous quantities of cast product newly developed, improve the precision and surface roughness of wooden model, and can reduce carpenter personnel 90% or so workload, the waste of the material during this is reduced simultaneously, reduces energy resource consumption.
Description
Technical field
The present invention relates to a kind of manufacture method of the casting wooden model of digital driving, more particularly to a kind of casting wooden model
Digitized manufacturing system method, belong to casting wooden model processing technique field.
Background technology
Traditional casting wooden model is all shape of the technique person according to casting, adds certain shrinkage factor, obtains casting
Wooden model drawing, then carpenter the wooden model of needs is processed according to drawing, after wooden model is produced, workshop arrangement experiment, root
Wooden model is repaiied according to the contrast of casting and the drawing of rough casting, untill wooden model meets the requirements, the preparation method of casting wooden model is most all
Make by hand or made by electric tool and obtain, the preparation method has the following disadvantages：Precision cannot ensure, large scale
Error in grade, the Form and position error of hole and boss cannot be guaranteed completely, and cavity and boss on direction in space, be
Line that can not be manually meets requirement；The operating rate of artificial tool operating causes wooden model roughness poor, institute than relatively low
The finish for obtaining sand mold is naturally poor, and requirement more and more higher of the high-quality casting to surface smoothness at present, add existing at present
Requirement more and more higher of the generationization plant equipment to casting, the shortcoming of above conventional cast wooden model processing, seriously governs to casting
The development of industry.
The content of the invention
To solve the deficiencies in the prior art, the present invention provides a kind of digitized manufacturing system method of casting wooden model, using special
With Digit Control Machine Tool and the special timber with taper processing rotary cutter, by milling process obtain casting wooden model, eliminate many
Secondary trial cut corrects the link of wooden model again after cutting wooden model and cast product casting mold, cast, castings examination until obtaining castings,
Production efficiency is increased substantially, the time of exploitation wooden model needed for the production in enormous quantities of cast product newly developed is shortened, improve
The precision and surface roughness of wooden model, and can reduce carpenter personnel 90% or so workload, while during reducing this
The waste of material, reduces energy resource consumption.
The technical solution adopted in the present invention is：
A kind of digitized manufacturing system method of casting wooden model, comprises the following steps：
（a）According to casting material performance and the pre- casting sand type performance taken of casting, the shrinkage factor of casting and pouring for casting are determined
Injection system；
（b）Determine casting point mould, the shape and size of wooden model Each part, set up the three-dimensional CAD mathematical model of wooden model；
（c）Three-dimensional CAD mathematical model generation Digit Control Machine Tool G code according to wooden model；
（d）The G code of generation is input to wooden model processing Digit Control Machine Tool, wooden model processing Digit Control Machine Tool is according to G code to wood
Material is processed, and wooden model is obtained；
（e）Using step（d）Obtained Wooden Pattern Making casting mold, casting mold assembling, is obtained casting after cast；
（f）To step（e）Obtained casting is detected that, if casting detection is qualified, Wooden Pattern Making terminates；If casting is detected not
It is qualified, then return to step（a）；
（g）Amendment step（a）The shrinkage factor of medium casting and the running gate system of casting；
（h）Correct the three-dimensional CAD mathematical model of wooden model；
（i）Three-dimensional CAD mathematical model according to wooden model after amendment generates Digit Control Machine Tool G code, and the G code input that will be generated
To wooden model processing Digit Control Machine Tool, wooden model processing Digit Control Machine Tool is modified or again according to G code to obtained wooden model
The new wooden model of processing and fabricating；
（j）Using revised wooden model or re-work obtained wooden model and remake casting mold, casting mold assembling is obtained new after cast
Casting；
（k）Obtained new casting is detected, if casting detection is unqualified, step is returned to（g）, until detection is obtained
Qualified casting.
Used as present invention further optimization, timber used by described wooden model is appointing in Korean pine, kahikatea or three-ply board
It is a kind of.
Used as present invention further optimization, timber used by described wooden model is by the timber after drying and processing.
Used as present invention further optimization, the cutter that described wooden model processing Digit Control Machine Tool is used is the wood with taper
Material processing rotary cutter.
Used as present invention further optimization, described obtained wooden model has pattern draft.
The beneficial effects of the present invention are：
（1）The CAD 3D model of wooden model is built using computer digital, using CAD 3D model-driven specialized nc machine tool
Processing wooden model so that wooden model designer need not be converted into X-Y scheme and give technologist, technologist again according to graphics
Also without conversion X-Y scheme, Digit Control Machine Tool equipment is directly processed wooden model and obtains high-quality wooden model, mould essence according to CAD 3D model
Degree grade effectively improves, and significantly simplifies technique, shortens the wooden model processing and manufacturing time；
（2）Digit Control Machine Tool belongs to finish machining equipment, and positioning precision is high, can obtain complex space curved surfaces and small structure, band cone
The special timber processing rotary cutter rotating speed of degree is very high, and highest can reach 24000 revs/min, than traditional grinding machine rotating speed also
It is high, so the finish of wooden model, linearity and flatness and dimensional accuracy are all more than 0.05 millimeter of rank；
Special timber processing rotary cutter of the present invention using specialized nc machine tool and with taper, is cast by milling process
With wooden model, eliminate multiple trial cut and cut wooden model and cast product casting mold, cast, castings examination until after obtaining castings again
The link of wooden model is corrected, production efficiency is increased substantially, exploitation wood needed for the production in enormous quantities of cast product newly developed is shortened
The time of mould, improve the precision and surface roughness of wooden model, and can reduce carpenter personnel 90% or so workload, together
When reduce the waste of material during this, reduce energy resource consumption, therefore, the inventive method has digitlization, precise treatment, green
The advantages of change.
Brief description of the drawings：
Fig. 1 is the digitized manufacturing system method process chart of casting wooden model of the invention.
Specific embodiment：
Specific introduction is done to the present invention with reference to the accompanying drawings and examples.
As shown in Figure 1：The present invention is a kind of digitized manufacturing system method of casting wooden model, is comprised the following steps：
（a）According to casting material performance and the pre- casting sand type performance taken of casting, the shrinkage factor of casting and pouring for casting are determined
Injection system；
（b）Determine casting point mould, the shape and size of wooden model Each part, set up the three-dimensional CAD mathematical model of wooden model；
（c）Three-dimensional CAD mathematical model generation Digit Control Machine Tool G code according to wooden model；
（d）The G code of generation is input to wooden model processing Digit Control Machine Tool, wooden model processing Digit Control Machine Tool is according to G code to wood
Material is processed, and wooden model is obtained；
（e）Using step（d）Obtained Wooden Pattern Making casting mold, casting mold assembling, is obtained casting after cast；
（f）To step（e）Obtained casting is detected that, if casting detection is qualified, Wooden Pattern Making terminates；If casting is detected not
It is qualified, then return to step（a）；
（g）Amendment step（a）The shrinkage factor of medium casting and the running gate system of casting；
（h）Correct the three-dimensional CAD mathematical model of wooden model；
（i）Three-dimensional CAD mathematical model according to wooden model after amendment generates Digit Control Machine Tool G code, and the G code input that will be generated
To wooden model processing Digit Control Machine Tool, wooden model processing Digit Control Machine Tool is modified or again according to G code to obtained wooden model
The new wooden model of processing and fabricating；
（j）Using revised wooden model or re-work obtained wooden model and remake casting mold, casting mold assembling is obtained new after cast
Casting；
（k）Obtained new casting is detected, if casting detection is unqualified, step is returned to（g）, until detection is obtained
Qualified casting.
Timber used by wooden model is any one in Korean pine, kahikatea or three-ply board in the present invention, and timber is used by wooden model
By the timber after drying and processing, certainly, timber can't have small holes caused by worms and crackle, and timber should be kept away used by the key position of wooden model
The dross on timber is opened, meanwhile, the cutter that wooden model processing Digit Control Machine Tool is used in the present invention is the timber processing rotation with taper
Rotor has；And the obtained wooden model of the present invention has pattern draft.
Embodiment one
It is the wooden model of the casting cylinder of 250mm, the material of cylinder to manufacture an a diameter of 250mm, length using the inventive method
It is HT250, the digitized manufacturing system step of the wooden model is as follows：
（a）The pre- casting sand taken is resin sand, and roughing sand granularity selects 50,80, resin amount can also be selected during practical application
It is the 1.5% of resin sand, curing agent addition accounts for the 50% of resin amount；With reference to the casting character of HT250, the receipts of casting are set
Shrinkage is 1.0%, according to Conventional wisdom, from bottom gating；Rule of thumb, the pattern draft for taking the wooden model is 1.5 °；
（b）Determine casting point mould, take the casting body completely in lower mould, it is the sand mold lid of 60mm that upper mould simply does a thickness
Plate；According to step（a）And step（b）Determine a diameter of 252.5mm of wooden model, highly for 252.5mm, pattern draft are 1.5 °
Casting body, sets up the three-dimensional CAD mathematical model of wooden model；
（c）Three-dimensional CAD mathematical model generation Digit Control Machine Tool G code according to wooden model；
（d）The G code of generation is input to wooden model processing Digit Control Machine Tool, wooden model processing Digit Control Machine Tool is according to G code to wood
Material is processed, and the cutter of Digit Control Machine Tool uses taper to process rotary milling tools for 1.5 ° of special timber, timber choosing used by wooden model
The Korean pine crossed with drying and processing, is obtained wooden model；Certainly, during practical application, timber used by wooden model can also select three-ply board；
（e）Using step（d）Obtained Wooden Pattern Making casting mold, casting mold assembling, is obtained casting after cast；
（f）To step（e）Obtained casting is detected that casting detection is qualified, and Wooden Pattern Making terminates.
Embodiment two
The wooden model of an a length of 250mm in outside, the casting hollow square of a length of 100mm of inner edge is manufactured using the inventive method,
The material of hollow square body is HT250, and the digitized manufacturing system step of the wooden model is as follows：
（a）The pre- casting sand taken is resin sand, and roughing sand granularity selects 80,50, resin amount can also be selected during practical application
It is the 1.5% of resin sand, curing agent addition accounts for the 50% of resin amount；With reference to the casting character of HT250, the receipts of casting are set
Shrinkage is 1.5%, according to Conventional wisdom, from bottom gating；Rule of thumb, the pattern draft for taking the wooden model is 1.5 °；
（b）Determine casting point mould, take the casting body completely in lower mould, it is the sand mold lid of 60mm that upper mould simply does a thickness
Plate；According to step（a）And step（b）Determine that a length of 252.5mm in outside of wooden model, a length of 101.5mm of inner edge, pattern draft are
1.5 ° of hollow square body；
（c）Three-dimensional CAD mathematical model generation Digit Control Machine Tool G code according to wooden model；
（d）The G code of generation is input to wooden model processing Digit Control Machine Tool, wooden model processing Digit Control Machine Tool is according to G code to wood
Material is processed, and the cutter of Digit Control Machine Tool uses taper to process rotary milling tools for 1.5 ° of special timber, timber choosing used by wooden model
The kahikatea crossed with drying and processing, is obtained wooden model；
（e）Using step（d）Obtained Wooden Pattern Making casting mold, casting mold assembling, is obtained casting after cast；
（f）To step（e）Obtained casting is detected, learns that gained casting dimension is more than after detection and require；
（g）Amendment step（a）The shrinkage factor of medium casting is 1.6%, still from bottom gating as casting pouring system
System；
（h）Correct the three-dimensional CAD mathematical model of wooden model；
（i）Three-dimensional CAD mathematical model according to wooden model after amendment generates Digit Control Machine Tool G code, and the G code input that will be generated
To wooden model processing Digit Control Machine Tool, wooden model processing Digit Control Machine Tool is modified according to G code to obtained wooden model；Certainly,
During practical application, wooden model processing Digit Control Machine Tool can also be re-worked according to G code and make new wooden model；
（j）Casting mold is remake using revised wooden model, casting mold assembling is obtained new casting after cast；If re-working system
Make new wooden model, then using obtained new Wooden Pattern Making casting mold is re-worked, casting mold assembling is obtained new casting after cast；
（k）Obtained new casting is detected, casting detection is qualified, and Wooden Pattern Making terminates；If in practical application, to system
The new casting for obtaining detects still unqualified, then return to step（g）, until the qualified casting of detection is obtained.
The present invention builds the CAD 3D model of wooden model using computer digital, using the special number of CAD 3D model-driven
Control machine tooling wooden model so that wooden model designer need not be converted into X-Y scheme and give technologist, work again according to graphics
Artist person directly processes wooden model and obtains high-quality wooden model also without conversion X-Y scheme, Digit Control Machine Tool equipment according to CAD 3D model,
Mould and die accuracy grade effectively improves, and significantly simplifies technique, shortens the wooden model processing and manufacturing time；Digit Control Machine Tool belongs to
Finish machining equipment, positioning precision is high, can obtain complex space curved surfaces and small structure, the special timber processing rotation with taper
Cutter rotating speed is very high, and highest can reach 24000 revs/min, more taller than traditional grinding machine rotating speed, so wooden model is bright and clean
Degree, linearity and flatness and dimensional accuracy are all more than 0.05 millimeter of rank.
Special timber processing rotary cutter of the present invention using specialized nc machine tool and with taper, is obtained by milling process
Casting wooden model, eliminates multiple trial cut and cuts wooden model and cast product casting mold, cast, castings examination until obtaining castings
Correct the link of wooden model again afterwards, increase substantially production efficiency, opened needed for the production in enormous quantities for shortening cast product newly developed
Feel numb time of mould, improve the precision and surface roughness of wooden model, and can reduce carpenter personnel 90% or so operation
Amount, while the waste of the material during reducing this, reduces energy resource consumption, therefore, the inventive method has digitlization, precision
The advantages of change, greenization.
The above is only the preferred embodiment of patent of the present invention, it is noted that for the common skill of the art
For art personnel, on the premise of patent principle of the present invention is not departed from, some improvements and modifications can also be made, these improve and
Retouching also should be regarded as the protection domain of patent of the present invention.
Claims (5)
1. a kind of digitized manufacturing system method of casting wooden model, it is characterised in that comprise the following steps：
（a）According to casting material performance and the pre- casting sand type performance taken of casting, the shrinkage factor of casting and pouring for casting are determined
Injection system；
（b）Determine casting point mould, the shape and size of wooden model Each part, set up the three-dimensional CAD mathematical model of wooden model；
（c）Three-dimensional CAD mathematical model generation Digit Control Machine Tool G code according to wooden model；
（d）The G code of generation is input to wooden model processing Digit Control Machine Tool, wooden model processing Digit Control Machine Tool is according to G code to wood
Material is processed, and wooden model is obtained；
（e）Using step（d）Obtained Wooden Pattern Making casting mold, casting mold assembling, is obtained casting after cast；
（f）To step（e）Obtained casting is detected that, if casting detection is qualified, Wooden Pattern Making terminates；If casting is detected not
It is qualified, then return to step（a）；
（g）Amendment step（a）The shrinkage factor of medium casting and the running gate system of casting；
（h）Correct the three-dimensional CAD mathematical model of wooden model；
（i）Three-dimensional CAD mathematical model according to wooden model after amendment generates Digit Control Machine Tool G code, and the G code input that will be generated
To wooden model processing Digit Control Machine Tool, wooden model processing Digit Control Machine Tool is modified or again according to G code to obtained wooden model
The new wooden model of processing and fabricating；
（j）Using revised wooden model or re-work obtained wooden model and remake casting mold, casting mold assembling is obtained new after cast
Casting；
（k）Obtained new casting is detected, if casting detection is unqualified, step is returned to（g）, until detection is obtained
Qualified casting.
2. a kind of digitized manufacturing system method of casting wooden model according to claim 1, it is characterised in that described wooden model
Timber used is any one in Korean pine, kahikatea or three-ply board.
3. the digitized manufacturing system method of a kind of casting wooden model according to claim 1 and 2, it is characterised in that described
Timber used by wooden model is by the timber after drying and processing.
4. a kind of digitized manufacturing system method of casting wooden model according to claim 1, it is characterised in that described wooden model
The cutter that processing Digit Control Machine Tool is used is the timber processing rotary cutter with taper.
5. the digitized manufacturing system method of a kind of casting wooden model according to claim 1, it is characterised in that described is obtained
Wooden model there is pattern draft.
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Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
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| CN113118378A (en) * | 2021-04-16 | 2021-07-16 | 杭州汽轮铸锻有限公司 | Cordwood casting wood pattern system |
| CN114029449A (en) * | 2021-10-15 | 2022-02-11 | 宜昌船舶柴油机有限公司 | Casting method of heavy-duty gas turbine diffusion casing casting |
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