CN103537741A - Evanescent mode processing method for casting automobile stamping die - Google Patents
Evanescent mode processing method for casting automobile stamping die Download PDFInfo
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- CN103537741A CN103537741A CN201210245128.5A CN201210245128A CN103537741A CN 103537741 A CN103537741 A CN 103537741A CN 201210245128 A CN201210245128 A CN 201210245128A CN 103537741 A CN103537741 A CN 103537741A
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Abstract
The invention provides an evanescent mode processing method for casting an automobile stamping die. The method comprises the following steps: attaching a first reference surface of a workpiece to be processed to the surface of a processing machine tool, wherein a positioning component on the processing machine tool is in contact with the outer contour of the first reference surface to fix the workpiece to be processed; milling the workpiece to be processed from a second reference surface while maintaining the part of the workpiece to be processed, which is close to the outer contour of the second reference surface and fixed together with the positioning component; attaching the second reference surface of the workpiece to be processed to the surface of the processing machine tool so that the positioning component is fixed by the part which is close to the second reference surface and retains outer contour; milling the workpiece to be processed from the first reference surface to mill off the outer contour of the workpiece to be processed close to the first reference surface; and manually removing the part which is close to the outer contour of the second reference surface and fixed together with the positioning component.
Description
Technical field
The present invention relates to mold machining technology field, relate in particular to a kind of Press Tools for Automobiles vanish mould for casting processing method.
Background technology
Lost foam casting (ExPendable Casting process, EPC) is a kind of cavityless casting technology.Specifically, be exactly without mould molding in casting process, but by numerical control machine tool, foam board piecemeal is made, bonding formation needs the true form of workpiece, then adopts resin sand or water-glass sand to do back-up sand, and this foam real type is carried out to landfill, according to evaporative pattern size or shape, leave one or more tapping holes, finally molten iron is injected from this plug hole, foam real type is melted, form after cooling cast iron part.
Due to lost foam casting small investment, cost is few, reduces labour intensity, improve operating environment and realize foundry's cleaner production, development in recent years is rapid, in being specially adapted to, the single-piece of heavy castings, small lot batch manufacture, as the production of car panel die, bed piece etc.
Yet, treat that the precision of casting workpiece and the machining accuracy of foam real type are closely related, if there is incompleteness or surperficial inhomogeneous in foam real type processing, can there is same problem in the workpiece casting out.Therefore, the machining accuracy of raising foam real type is the important guarantee of casting workpiece precision.
In prior art, foam real type carries out two sides processing by numerically-controlled machine tool, specifically as depicted in figs. 1 and 2.Fig. 1 is for to be fixed on foam board reverse side to be processed on lathe, and process tool, from top down-cutting, is processed foam board front; Fig. 2 is for to be fixed on foam board to be processed front on lathe, and process tool, from top down-cutting, is processed foam board reverse side.As shown in Figure 1, during fixed foam sheet material reverse side, the alignment pin 3 on lathe is fixed by foam board outline 1, and because outline is regular shape, contact-making surface is larger, positioning stablity, and positive machining accuracy can guarantee.After the positive completion of processing of foam board, form foam real type 2 half, if Fig. 2 is around X-axis Rotate 180 degree, fix its front, because the outline part in foam board front is by mill off, alignment pin can only be fixed half foam real type 2 of having processed, its contact-making surface irregular (particularly to so thin, long, the thin workpiece of automobile longitudinal girder class mould), alignment pin is fixing unstable, cause the vibration of process part, very easily moving alive, crudy cannot guarantee to be prone to waste product, causes unnecessary loss; And feeding speed cannot normally cut, can only reach 30% of normal cutting speed, working (machining) efficiency is obviously affected.
Summary of the invention
The present invention program's object is: a kind of Press Tools for Automobiles vanish mould for casting processing method is provided, with solve in prior art outline of foam board by mill off after, cannot be stably fixed at the problem on lathe.
For this reason, the invention provides a kind of Press Tools for Automobiles vanish mould for casting processing method, be applied to comprising that the first datum level and the second datum level to be processed processes, described the first datum level and described the second datum level are oppositely arranged, and the method comprises the following steps:
First datum level of described to be processed is fitted in to machining tool surface, and the positioning element on described machining tool contacts with the outline that approaches described the first datum level, and described to be processed is fixed;
From described the second datum level, to described to be processed, carry out milling processing, and retain the part for being fixed with described positioning element on described to be processed outline that approaches described the second datum level;
Second datum level of described to be processed is fitted in to machining tool surface, positioning element is partly fixed by approaching the reservation outline of the second datum level;
From described the first datum level, to described to be processed, carry out milling processing, by described to be processed outline mill off that approaches the first datum level;
Removal approaches the part for being fixed with positioning element on the outline of the second datum level.
Preferably, the part for being fixed with positioning element that to be processed of described reservation approaches on the outline of the second datum level is separate.
Preferably, the part for being fixed with positioning element that to be processed of described reservation approaches on the outline of the second datum level interconnects.
Preferably, the end face of described positioning element is plane.
Preferably, described the first datum level is parallel with described the second datum level.
Preferably, described positioning element is alignment pin.
Compared with prior art, the present invention has the following advantages:
In the present invention, in foam board positive and negative process, not by the complete mill off of foam board outline, but retain the outline part contacting with alignment pin, after two sides all processes, by the manual removal of reserve part.This scheme has been improved the drawbacks such as diel evaporative pattern evaporative pattern difficult processing elongated and ultra-thin class part is fixed, efficiency is low, has improved working (machining) efficiency, quality, has improved the outward appearance of full mold, has ensured personal safety.
Accompanying drawing explanation
Fig. 1 is fixing to be processed and from the schematic diagram of positive facing cut processing of reverse side in prior art;
Fig. 2 is after in prior art, reverse side is processed, fixing to be processed positive schematic diagram;
Fig. 3 is a kind of Press Tools for Automobiles vanish mould for casting of the present invention processing method flow chart;
Fig. 4 is a kind of processing mode schematic diagram in the embodiment of the present invention.
The specific embodiment
Describe embodiments of the invention below in detail, the example of described embodiment is shown in the drawings, and wherein same or similar label represents same or similar element or has the element of identical or similar functions from start to finish.Below by the embodiment being described with reference to the drawings, be exemplary, be intended to for explaining the present invention, and can not be interpreted as limitation of the present invention.
In description of the invention, it will be appreciated that, term " orientation or the position relationship of the indication such as " center ", " longitudinally ", " laterally ", 'fornt', 'back', " left side ", " right side ", " vertically ", " level ", " top ", " end " " interior ", " outward " they are based on orientation shown in the drawings or position relationship; be only the present invention for convenience of description and simplified characterization; rather than indicate or imply that the device of indication or element must have specific orientation, with specific orientation, construct and operation, therefore can not be interpreted as limitation of the present invention.
The invention provides a kind of Press Tools for Automobiles vanish mould for casting processing method, be applied to comprising that the first datum level and the second datum level to be processed processes, described the first datum level and described the second datum level are oppositely arranged.This first datum level can be to be processed reverse side of the prior art, and the second datum level can be to be processed front of the prior art, and vice versa.In addition, according to regular situation the first datum level and the second datum level almost parallel, but also can there is certain angle.The method as shown in Figure 3, comprises the following steps:
Step 101, is fitted in machining tool surface by first datum level of described to be processed, and the positioning element on described machining tool contacts with the outline that approaches described the first datum level, and described to be processed is fixed.Wherein positioning element can be the conventional parts such as alignment pin, and its end face is plane, to increase and the contact area of to be processed, improves stability.In addition, according to be processed difformity, can adjust quantity and the position of positioning element, for example, for slender piece (as shown in Figure 4), can respectively establish at two ends a positioning element, each arranges at least three positioning elements both sides.
Step 102, carries out milling processing from described the second datum level to described to be processed, and retains the part for being fixed with described positioning element on described to be processed outline that approaches described the second datum level.Generally positioning element position on lathe is fixed, as long as in vertical machining tool surface direction, along positioning element, upwards do extended line, can be to be processed near determining on the outline of the second datum level " for the part 12 being fixed with described positioning element ".Here the said outline near the second datum level, to distinguish to be processed the central plane parallel with machining tool in principle, both between this central plane and the second datum level, be that in fact this plane also can be at central plane near the second datum level.
In addition, from described the second datum level, to described to be processed mode of carrying out milling processing, can comprise multiple, example as shown in Figure 4, " for the part 12 being fixed with described positioning element " retained, and " for the part 12 being fixed with described positioning element " is connected to each other by part outline, that is to say, during from the second benchmark facing cut processing, not by unnecessary outline 11 mill ofves, but retained the outline of some tie points.Another kind of situation is: in milling, add man-hour, by unnecessary outline 11 mill ofves, only retained the outline 12 of some tie points.
Step 103, is fitted in machining tool surface by second datum level of described to be processed, and positioning element is partly fixed by approaching the reservation outline of the second datum level.
Step 104, carries out milling processing from described the first datum level to described to be processed, by described to be processed outline mill off that approaches the first datum level.
Step 105, the manual part for being fixed with positioning element of removing on the outline that approaches the second datum level.For the first situation, whole remaining outline need to be removed; For the second situation, only the outline 12 that has retained some tie points need to be removed just passable.
In the description of this description, the description of reference term " embodiment ", " some embodiment ", " illustrative examples ", " example ", " concrete example " or " some examples " etc. means to be contained at least one embodiment of the present invention or example in conjunction with specific features, structure, material or the feature of this embodiment or example description.In this manual, the schematic statement of above-mentioned term is not necessarily referred to identical embodiment or example.And the specific features of description, structure, material or feature can be with suitable mode combinations in any one or more embodiment or example.
The foregoing is only preferred embodiment of the present invention, be not used for limiting the scope of the invention; The claim of protection scope of the present invention in claims limits, and every equivalence variation and modification of doing according to invention, all within the protection domain of patent of the present invention.
Claims (6)
1. a Press Tools for Automobiles vanish mould for casting processing method, be applied to comprising that the first datum level and the second datum level to be processed processes, described the first datum level and described the second datum level are oppositely arranged, and it is characterized in that, the method comprises the following steps:
First datum level of described to be processed is fitted in to machining tool surface, and the positioning element on described machining tool contacts with the outline that approaches described the first datum level, and described to be processed is fixed;
From described the second datum level, to described to be processed, carry out milling processing, and retain the part for being fixed with described positioning element on described to be processed outline that approaches described the second datum level;
Second datum level of described to be processed is fitted in to machining tool surface, positioning element is partly fixed by approaching the reservation outline of the second datum level;
From described the first datum level, to described to be processed, carry out milling processing, by described to be processed outline mill off that approaches the first datum level;
Removal approaches the part for being fixed with positioning element on the outline of the second datum level.
2. Press Tools for Automobiles vanish mould for casting processing method as claimed in claim 1, is characterized in that, the part for being fixed with positioning element that to be processed of described reservation approaches on the outline of the second datum level is separate.
3. Press Tools for Automobiles vanish mould for casting processing method as claimed in claim 1, is characterized in that, the part for being fixed with positioning element that to be processed of described reservation approaches on the outline of the second datum level interconnects.
4. Press Tools for Automobiles vanish mould for casting processing method as claimed in claim 1, is characterized in that, the end face of described positioning element is plane.
5. Press Tools for Automobiles vanish mould for casting processing method as claimed in claim 1, is characterized in that, described the first datum level is parallel with described the second datum level.
6. the Press Tools for Automobiles vanish mould for casting processing method as described in any one in claim 1 to 5, is characterized in that, described positioning element is alignment pin.
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| CN201210245128.5A CN103537741B (en) | 2012-07-13 | 2012-07-13 | A kind of Press Tools for Automobiles vanish mould for casting processing method |
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| CN201210245128.5A CN103537741B (en) | 2012-07-13 | 2012-07-13 | A kind of Press Tools for Automobiles vanish mould for casting processing method |
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| CN103537741B CN103537741B (en) | 2015-09-09 |
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Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105710424A (en) * | 2016-04-06 | 2016-06-29 | 哈尔滨飞机工业集团有限责任公司 | Numerical control machining method of flight simulation ice-type foam block |
| CN109262791A (en) * | 2018-11-23 | 2019-01-25 | 青岛宙庆工业设计有限公司 | The double-side processing method of blank |
| CN111069529A (en) * | 2019-12-30 | 2020-04-28 | 安徽应流铸业有限公司 | Non-mold machining method for small-contact-surface type lost foam model |
| CN111673150A (en) * | 2020-05-06 | 2020-09-18 | 信义汽车玻璃(深圳)有限公司 | Vehicle window hardware and processing method thereof |
| CN113333829A (en) * | 2021-05-31 | 2021-09-03 | 重庆长安汽车股份有限公司 | CNC machining method for automobile plastic part |
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| CN101363327A (en) * | 2008-09-26 | 2009-02-11 | 无锡透平叶片有限公司 | Method for processing TC11 material blade |
| CN101518835A (en) * | 2009-03-19 | 2009-09-02 | 无锡透平叶片有限公司 | Method for controlling machining distortion of titanium alloy large-size fan blade of large aircraft |
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| CN101363327A (en) * | 2008-09-26 | 2009-02-11 | 无锡透平叶片有限公司 | Method for processing TC11 material blade |
| CN101518835A (en) * | 2009-03-19 | 2009-09-02 | 无锡透平叶片有限公司 | Method for controlling machining distortion of titanium alloy large-size fan blade of large aircraft |
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Cited By (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105710424A (en) * | 2016-04-06 | 2016-06-29 | 哈尔滨飞机工业集团有限责任公司 | Numerical control machining method of flight simulation ice-type foam block |
| CN105710424B (en) * | 2016-04-06 | 2017-11-28 | 哈尔滨飞机工业集团有限责任公司 | A kind of flight simulation ice type foam block numerical-control processing method |
| CN109262791A (en) * | 2018-11-23 | 2019-01-25 | 青岛宙庆工业设计有限公司 | The double-side processing method of blank |
| CN109262791B (en) * | 2018-11-23 | 2021-06-11 | 青岛宙庆工业设计有限公司 | Double-sided processing method of blank |
| CN111069529A (en) * | 2019-12-30 | 2020-04-28 | 安徽应流铸业有限公司 | Non-mold machining method for small-contact-surface type lost foam model |
| CN111673150A (en) * | 2020-05-06 | 2020-09-18 | 信义汽车玻璃(深圳)有限公司 | Vehicle window hardware and processing method thereof |
| CN111673150B (en) * | 2020-05-06 | 2021-05-28 | 信义汽车玻璃(深圳)有限公司 | Processing method of car window hardware |
| CN113333829A (en) * | 2021-05-31 | 2021-09-03 | 重庆长安汽车股份有限公司 | CNC machining method for automobile plastic part |
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