CN105665633A - Sand mould extrusion and cutting integrated compound molding method - Google Patents
Sand mould extrusion and cutting integrated compound molding method Download PDFInfo
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- CN105665633A CN105665633A CN201610049689.6A CN201610049689A CN105665633A CN 105665633 A CN105665633 A CN 105665633A CN 201610049689 A CN201610049689 A CN 201610049689A CN 105665633 A CN105665633 A CN 105665633A
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- sand mold
- net
- shape
- sand
- sand mould
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B22—CASTING; POWDER METALLURGY
- B22C—FOUNDRY MOULDING
- B22C9/00—Moulds or cores; Moulding processes
- B22C9/02—Sand moulds or like moulds for shaped castings
Abstract
The invention relates to a sand mould extrusion and cutting integrated compound molding method, and belongs to the crossing field of sand mould casing, near-net molding and precise molding. The method comprises the steps that a near-net molding model is obtained through inverse seeking of a sand mould CAD three-dimensional model; through the near-net molding model, a sand mould flexible extrusion array is directly driven to perform shape adjusting, and a sand mould near-net mold and a sand box are formed; the sand box is filled with evenly-mixed moulding sand, and through working procedures of extrusion, curing, sand mold raising and the like, a near-net molding sand mould is obtained; according to the sand mould CAD three-dimensional model and the near-net molding model, a sand mould numerical cutting machining path file is generated; after sand casting, positioning and clamping of the near-net molding sand mould are completed on the flexible extrusion array; and the machining path file is used for driving a numerical control cutting system to perform feeding, and the flexible extrusion array wholly ascends and descends to complete precise cutting molding. Compared with a traditional sand mould casing method, the sand mould extrusion and cutting integrated compound molding method has the beneficial effects that the sand mould mold manufacturing link is omitted, the sand mould production digital level is improved, the sand mould manufacturing period is shortened, and the sand mould manufacturing cost is reduced.
Description
Technical field
The inventive method relates to the flexible extrusion forming technology of digitizing of casting sand mold, accurate digital control cutting out shapes technology and three-dimensional CAD model reverse technology, is specifically related to a kind of sand mold extruding and cuts integration combined shaping method。
Background technology
The day by day enhancing of day by day serious and people's environmental consciousness of environmental problem, facilitates the development of green Forming Technique. Consume the casting industry of rich and influential family as the energy, material etc., it is badly in need of having carried out the research that look manufactures novel method, novel process and new equipment. Without the progress of die cast technology, while promoting, casting industry enters the green manufacturing epoch.
The technology such as computer technology, flexible forming technology, digital control processing, casting are carried out innovation integrate by the present invention, save wooden model or metal pattern manufacturing processed, shorten the sand mold production cycle, save molding sand material consumption; Meanwhile, decrease sand mold production process, it is to increase sand mold production level of digital, shorten the sand mold manufacturing cycle, reduce sand mold manufacturing cost。
Summary of the invention
The present invention provides a kind of sand mold extruding to cut integration combined shaping method, and object is to realize fast digitizing flexibility extruding and the precision cutting integration combined shaping of sand mold.
The inventive method passes through three-dimensional CAD software reverse near-net-shape sand mold cad model by sand mold CAD 3D model, and generates precision cutting process path file on near-net-shape sand mold cad model.
The inventive method, by near-net-shape sand mold CAD 3D model Direct driver sand mold flexibility extruding array, forms near-net-shape sand mold flexible die and sandbox; Sand mold flexibility extruding array is a by length, and width is b, is highly the m n array that the squeeze unit of h forms; Drive the lifting of each squeeze unit by near-net-shape sand mold cad model Direct driver sand mold flexibility extruding array control system, form near-net-shape sand mold flexible die and sandbox.
The inventive method will be pre-mixed uniform molding sand according to a certain ratio and insert in sandbox, through extruding, solidification and the near-net-shape sand mold playing the reserved 0.5-2mm allowances for finish of operation acquisition such as sand mold.
The inventive method completes near-net-shape sand mold founding operation by switching mechanism, and completes the localization and clamping of near-net-shape sand mold on sand mold flexibility extruding array.
The precision cutting that the sand mold flexibility extruding array integral elevating of the inventive method by machining path file driving numerical control cutting system feed with as z-axis completes sand mold is shaped.
The inventive method near-net-shape sand mold is after positioning and clamping, and sand mold flexibility extruding array control system realizes sand mold flexibility extruding array integral elevating by machining path file driving; Meanwhile, numerical control cutting system completes cutting action by machining path file driving, obtains target sand mold.
Accompanying drawing explanation
Fig. 1 is that integration combined shaping method figure is cut in sand mold extruding.
Fig. 2 is sand mold CAD 3D model.
Fig. 3 is the flexibility extruding array of the sand mold after adjusting shape.
Fig. 4 is near-net-shape sand mold.
Fig. 5 is that numerical control cutting system cuts the near-net-shape sand mold of clamping on sand mold flexibility extruding array.
Embodiment
The present invention provides a kind of sand mold extruding to cut integration combined shaping method, and object is to realize fast digitizing flexibility extruding and the precision cutting integration combined shaping of sand mold.
The inventive method passes through three-dimensional CAD software reverse near-net-shape sand mold cad model by sand mold CAD 3D model, and generates precision cutting process path file based on near-net-shape sand mold cad model.
The inventive method, by near-net-shape sand mold CAD 3D model Direct driver sand mold flexibility extruding array, forms near-net-shape sand mold flexible die and sandbox; Sand mold flexibility extruding array is a by length, and width is b, is highly the m n array that the squeeze unit of h forms; Realize the lifting of each squeeze unit by near-net-shape sand mold cad model driving control system, form near-net-shape sand mold flexible die and sand mold.
The inventive method will be pre-mixed uniform molding sand according to a certain ratio and insert in sand mold near-net-shape enveloping surface cavity, obtain near-net-shape sand mold through extruding, solidification, and the allowance for finish of reserved 0.5-2mm.
The inventive method completes near-net-shape sand mold founding operation by switching mechanism, and completes the localization and clamping of near-net-shape sand mold on sand mold flexibility extruding array.
The precision cutting that the sand mold flexibility extruding array integral elevating of the inventive method by machining path file driving numerical control cutting system feed with as z-axis completes sand mold is shaped.
The inventive method near-net-shape sand mold is after positioning and clamping, and sand mold flexibility extruding array control system realizes sand mold flexibility extruding array integral elevating by machining path file driving; Meanwhile, numerical control cutting system completes cutting action by machining path file driving, obtains target sand mold。
Claims (4)
1. integration combined shaping method is cut in a sand mold extruding, it is characterised in that, concrete steps are as follows:
(1) by computer in three-dimensional CAD software, by sand mold CAD 3D model reverse near-net-shape sand mold CAD 3D model;
(2) according to sand mold CAD 3D model and near-net-shape sand mold CAD 3D model generation sand mold numerical control cutting machining path file;
(3) complete to adjust shape by near-net-shape sand mold CAD 3D model Direct driver sand mold flexibility extruding array, form near-net-shape sand mold flexible die and sandbox;
(4) will be pre-mixed uniform molding sand according to a certain ratio inserts in near-net-shape sand mold sandbox, obtains near-net-shape sand mold through operations such as extruding, solidification and sand molds;
(5) sand mold flexibility extruding array is resetted, complete near-net-shape sand mold founding operation by sand mold switching mechanism, and on sand mold flexibility extruding array, complete the localization and clamping of near-net-shape sand mold;
(6) precision cutting completing sand mold by machining path file driving numerical control cutting system feed and flexible extruding array integral elevating is shaped, and obtains target sand mold.
2. integration combined shaping method is cut in a kind of sand mold extruding according to claim 1, it is characterised in that, near-net-shape sand mold is the sand mold near-net-shape precast body of reserved 0.5-2mm allowance for finish.
3. integration combined shaping method is cut in a kind of sand mold extruding according to claim 1, it is characterised in that, flexible extruding array is a by length, and width is b, is highly the m n array that the squeeze unit of h forms; Realize the lifting tune shape of each squeeze unit by near-net-shape sand mold CAD 3D model-driven, form near-net-shape sand mold flexible die and sandbox.
4. integration combined shaping method is cut in a kind of sand mold extruding according to claim 1, it is characterised in that, described near-net-shape sand mold, after positioning and clamping, moves and adjusts shape by machining path file driving control flexible extruding array as z-axis integral elevating; Meanwhile, cutting system has moved in x and y direction cutting operation by the cutter of machining path file driving high speed rotating, obtains target sand mold.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201610049689.6A CN105665633A (en) | 2016-01-26 | 2016-01-26 | Sand mould extrusion and cutting integrated compound molding method |
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| Application Number | Priority Date | Filing Date | Title |
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| CN201610049689.6A CN105665633A (en) | 2016-01-26 | 2016-01-26 | Sand mould extrusion and cutting integrated compound molding method |
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| CN105665633A true CN105665633A (en) | 2016-06-15 |
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| Application Number | Title | Priority Date | Filing Date |
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| CN201610049689.6A Pending CN105665633A (en) | 2016-01-26 | 2016-01-26 | Sand mould extrusion and cutting integrated compound molding method |
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Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108580803A (en) * | 2018-04-19 | 2018-09-28 | 北京机科国创轻量化科学研究院有限公司 | A kind of nearly manufacturing process of sand mold model based on the principle of stratification |
| CN109047659A (en) * | 2018-10-24 | 2018-12-21 | 北京机科国创轻量化科学研究院有限公司 | A kind of gradient-structure sand mold extrusion forming method |
| CN110860650A (en) * | 2019-11-01 | 2020-03-06 | 王海江 | Extrusion forming process method of sand mould or shell for casting |
| CN112045149A (en) * | 2020-07-30 | 2020-12-08 | 北京机科国创轻量化科学研究院有限公司 | Multi-stage flexible extrusion forming method for sand mold |
| CN113290203A (en) * | 2021-04-26 | 2021-08-24 | 第一拖拉机股份有限公司 | Casting method using flexible mold and deformation casting pattern |
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| US20110230993A1 (en) * | 2008-12-30 | 2011-09-22 | Advanced Manufacture Technology Center, China Academy Of Machinery Science | Digital processing method and device of large or medium-size sand mold |
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| CN102489675A (en) * | 2011-11-14 | 2012-06-13 | 机械科学研究总院先进制造技术研究中心 | Die-less casting forming machine |
| CN102773411A (en) * | 2012-08-20 | 2012-11-14 | 机械科学研究总院先进制造技术研究中心 | Digital die-free sand mould extrusion forming method |
| CN102773421A (en) * | 2012-08-20 | 2012-11-14 | 机械科学研究总院先进制造技术研究中心 | Digital die-free sand mold extrusion forming machine |
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Cited By (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108580803A (en) * | 2018-04-19 | 2018-09-28 | 北京机科国创轻量化科学研究院有限公司 | A kind of nearly manufacturing process of sand mold model based on the principle of stratification |
| CN108580803B (en) * | 2018-04-19 | 2020-08-11 | 北京机科国创轻量化科学研究院有限公司 | Sand mold model near-forming method based on layering principle |
| CN109047659A (en) * | 2018-10-24 | 2018-12-21 | 北京机科国创轻量化科学研究院有限公司 | A kind of gradient-structure sand mold extrusion forming method |
| CN110860650A (en) * | 2019-11-01 | 2020-03-06 | 王海江 | Extrusion forming process method of sand mould or shell for casting |
| CN112045149A (en) * | 2020-07-30 | 2020-12-08 | 北京机科国创轻量化科学研究院有限公司 | Multi-stage flexible extrusion forming method for sand mold |
| CN113290203A (en) * | 2021-04-26 | 2021-08-24 | 第一拖拉机股份有限公司 | Casting method using flexible mold and deformation casting pattern |
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Application publication date: 20160615 |