CN1962112A - Method for forming platy pieces with negative angle - Google Patents
Method for forming platy pieces with negative angle Download PDFInfo
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- CN1962112A CN1962112A CN 200510115925 CN200510115925A CN1962112A CN 1962112 A CN1962112 A CN 1962112A CN 200510115925 CN200510115925 CN 200510115925 CN 200510115925 A CN200510115925 A CN 200510115925A CN 1962112 A CN1962112 A CN 1962112A
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- negative angle
- cap
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- convex closure
- kink
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Abstract
The invention relates to a method for shaping sheet with negative angle, wherein said method comprises extending the sheet, to form at least two crossed surfaces, shaping the extended sheet; said extending process makes one surface form convex part; and the shaping process makes another surface form negative angle, and the convex part is filled into the negative part. Therefore, the invention can effectively control the extending deformation of sheet, to improve the quality.
Description
Technical field
The present invention relates to the manufacturing process of platy, relate in particular to the manufacturing process of platy of band negative angle, more specifically relate to the manufacturing process of the automobile top-cap of a kind of magnetic tape trailer portion.
Background technology
At automobile manufacturing field, often need form processing to the product of some complex profiles.Have the product of complex profile for some, it has the negative angle part, and promptly the shape of this negative angle part is from top to bottom and caves inward.The shaping of this negative angle part generally is to move vertically downward inwardly to move simultaneously by patrix to form.About the description of negative angle part, the many places record is arranged in the prior art, for example at CN 1373015 A, CN 1373017 A, CN 1621176 A, or the like.Just no longer the negative angle part is given unnecessary details itself at this.
In the prior art, the shaping processing of the product of band negative angle part generally is to realize by multiple working procedure, promptly at first product is carried out the shaping of other parts except the negative angle part, and then form the negative angle part by operations such as side shapings by drawing operation etc.When forming the negative angle part, bigger material extension distortion can take place in material, and for the bigger product of the negative angle degree of depth, the degree of stretch of material is bigger.In actual process, because the degree of stretch of material is bigger, thus might cause place thin on the product to be pulled open or fold etc. takes place, and can influence the shape and size of other parts of product.Being example below with the automobile top-cap is introduced the manufacturing process of the platy of this band negative angle.
Automobile top-cap is divided into the automobile top-cap of general automobiles top cover and magnetic tape trailer portion usually, and the automobile top-cap of magnetic tape trailer portion then is a kind of product of typical band negative angle part, as shown in Figure 3.
The general automobiles top cover is generally the middle rectangular shape that a little upwards arches upward as shown in Figure 2.As shown in Figure 3, kink (negative angle part) A that the automobile top-cap of magnetic tape trailer portion generally includes the top, extend downwards from the top tail end and from the afterbody B that the tail end of kink continues to extend back will form some installing hole C usually on afterbody B.
In the prior art, the manufacturing process of general-utility car top cover generally comprises and draws, edge-cutting and hole-punching, flanging and restriking then.Wherein, drawing operation is that flat plate is drawn into the automobile top-cap shape substantially; The edge-cutting and hole-punching operation is that the unnecessary material of the periphery of the automobile top-cap after drawing is cut away and punching; The flanging and restriking operation is the shape of product to be turned over put in order to reach the designing requirement of product.
For the automobile top-cap of magnetic tape trailer portion, because afterbody has the negative angle part A, and the negative angle part A generally must could form by the side shaping, so the manufacturing process of this automobile top-cap generally comprises and draws, edge-cutting and hole-punching, side shaping, flanging and restriking then.Wherein, drawing operation is that flat plate is drawn the shape that becomes to have top, kink and afterbody; The edge-cutting and hole-punching operation is that the unnecessary material of the periphery of the automobile top-cap after drawing is cut away and punching; The side trimming is to be used for described kink is carried out the side shaping to form the negative angle part A; The flanging and restriking operation is the shape of product to be turned over put in order to reach the designing requirement of product, obtains final automobile top-cap.
Fig. 4 is the schematic diagram of the magnetic tape trailer portion automobile top-cap after drawing, and Fig. 5 is the schematic diagram of the magnetic tape trailer portion automobile top-cap after edge-cutting and hole-punching and the side shaping.
But in technological method for processing in the past, as shown in Figure 4 and Figure 5, in the side trimming of automobile top-cap afterbody, the distortion of materials amount is very big, therefore need carry out the edge-cutting and hole-punching operation in advance, the unnecessary waste material excision of the product periphery after being about to draw is so that material can flow easily inwards; Like this in side shaping process, the installing hole that has formed on the afterbody can deform (seeing Fig. 5 A), be that installing hole C 1 moves to position 2 from the position, therefore installing hole should not gone out earlier and must increase the punching operation after the side shaping, so the actual manufacturing process of the automobile top-cap of magnetic tape trailer portion generally will comprise and draws side cut, the side shaping, punching, and flanging and restriking, therefore processing is very loaded down with trivial details.
Summary of the invention
Therefore, an object of the present invention is to provide a kind of manufacturing process with negative angle product partly, its material that can avoid in the prior art taking place when forming the negative angle part extends distortion and some problems of causing, as the change of other partial shapes of product and size etc.
Another object of the present invention provides the manufacturing process simply and easily of the automobile top-cap of a kind of magnetic tape trailer portion.
According to an aspect of the present invention, a kind of manufacturing process of the platy with negative angle, this method comprises draws board-like material, make board-like material form at least two crossing faces, material side shaping with after drawing is characterized in that, described drawing makes formation convex closure part on the described face; Described side shaping makes and forms the negative angle part on another face, makes the material of convex closure part add to this negative angle part simultaneously.
According to another aspect of the present invention, the automobile top-cap of a kind of magnetic tape trailer portion adopts above-mentioned manufacturing process to be shaped, wherein this automobile top-cap comprise the top, the kink that extends downwards from the top tail end and the afterbody that extends back from the tail end of kink, described manufacturing process comprises board-like material is drawn the shape that becomes to have top, kink and afterbody, forms the convex closure part simultaneously on afterbody; Then kink is carried out the side shaping to form the negative angle part, make the material of convex closure part add to this negative angle part simultaneously.
Pass through said method, owing to passing through the side shaping before forming the negative angle part on another face, at first on a face, formed the convex closure part, so when the side shaping forms the negative angle part, the material of convex closure part will replenish or flow to the negative angle part, thereby the distortion of other parts of product or the extension of product material itself have effectively been controlled, therefore can the shape and size of other parts of product not impacted, and can also guarantee that product can not be pulled open or wrinkling, improve the quality of product.
Automobile top-cap for magnetic tape trailer portion, because the part of the convex closure on the afterbody can realize the purpose of storing, promptly in the side trimming, the material of convex closure part will add to the negative angle part, so effectively controlled the amount of flow of material in the side trimming of drawing the back product, thereby before the side trimming, do not need the operation of cutting edge, after the side trimming, carry out edge-cutting and hole-punching, not only guaranteed the position of installing hole but also reduced operation, therefore greatly reduced production cost and improved production efficiency.
Description of drawings
Fig. 1 is the schematic block diagram of the manufacturing process of band negative angle platy of the present invention.
Fig. 2 is the partial schematic diagram of general-utility car top cover in the prior art.
Fig. 3 is the partial schematic diagram that has the automobile top-cap of afterbody in the prior art.
Fig. 4 is the schematic diagram of automobile top-cap after drawing that has afterbody in the prior art.
Fig. 5 is the schematic diagram of automobile top-cap after the side shaping that has afterbody in the prior art, and wherein Fig. 5 A is a side shaping schematic diagram afterwards, and Fig. 5 B is the schematic diagram of product net shape.
Fig. 6 is of the present invention to the schematic diagram before the side shaping of the automobile top-cap that has afterbody.
Fig. 7 is of the present invention to the schematic diagram after the side shaping of the automobile top-cap that has afterbody.
The specific embodiment
As shown in Figure 1, the invention discloses a kind of manufacturing process of the platy with negative angle, this method comprises draws board-like material, make board-like material form at least two crossing faces, form the convex closure part on the face therein simultaneously, then another face is carried out the side shaping, on this another face, form the negative angle part, make the material of convex closure part add to this negative angle part simultaneously.
Preferably, the angle between described two crossing faces is that 30 degree are to 150 degree.More preferably, the angle between two crossing faces is that 90 degree are to 100 degree.Because all be unfavorable for platy is drawn if angle is too big or too little.
Preferably, the size of described convex closure part makes that when the side shaping material of described convex closure part adds to the negative angle part fully, makes described product material that the distortion of extending not take place basically, thereby can make effect of the present invention reach optimum state.For example shown in Fig. 1, the part on the negative angle part does not change before the side shaping and afterwards, promptly forms the process of negative angle part to the not influence of this part by the side shaping.Certainly, according to specific needs, also can make the material of convex closure part partly smaller with respect to the negative angle that will form, thereby in side shaping process, except convex closure material partly adds to the negative angle part, some distortion of extending also can take place in the material of negative angle part or near the material it, improve material behavior thereby be out of shape by this extension, for example increase rigidity etc.
Describe method of the present invention and principle thereof below with reference to other accompanying drawings in detail according to an embodiment of the automobile top-cap of magnetic tape trailer portion.For the platy of other band negative angles, the present invention is suitable for certainly.
As shown in Figure 6 and Figure 7, in the manufacturing process of magnetic tape trailer of the present invention portion automobile top-cap, mainly be in drawing operation, to go up formation convex closure part D at afterbody B (face), then kink (another face) is carried out the side trimming to form the negative angle part A, the material of this convex closure part D will replenish or flow to the negative angle part A this moment, thereby had avoided material that a series of problems that extend and be out of shape and cause largely take place.
Particularly, in drawing operation, plate is drawn the shape that becomes to have top, kink and afterbody, on afterbody B, draw out simultaneously convex closure part D, kink is being carried out the side shaping to form the negative angle part A then, the material of this convex closure part can replenish or flow to the negative angle part A in the side trimming, and product prevents that at the deflection at other positions material from the distortion of extending taking place in the side trimming thereby effectively controlled.
The height of convex closure part D and size are the keys of manufacturing process of the present invention, the formed area of shape of convex closure part D should equate substantially with the area of negative angle part A, becoming in the process of negative angle part A by convex closure part D, the material distortion that do not take place basically to extend, thus the shape, size etc. of other parts of product can obviously do not influenced.If convex closure part D is greater than the negative angle part A, then unnecessary material will be deposited in afterbody B and goes up and make product wrinkling during the side shaping; If convex closure part D is less than the negative angle part A, then the material deformation amount increases and surpasses material deformation limit product and can break during the side shaping.
Method of the present invention has in addition also been opened up a kind of thinking for the processing of other parts.Because the effect of storing does not have material to flow when the side shaping substantially beyond the convex closure, so but can reduce operation at forward and backward all edge-cutting and hole-punchings of side shaping, guaranteed the precision of product.
In sum, crucial part of the present invention was before forming the negative angle part on the face, the place of intersecting near two faces on another face forms the convex closure part to carry out storing in advance, then in the middle of formation negative angle part process, the material of convex closure part will be replenished or be flow to the negative angle part, thereby can effectively control the extension distortion of product material itself, thereby product is pulled open or wrinkling.According to factors such as the shape of negative angle part, size, the degree of depth, can select the height of convex closure part and size etc. rightly, thereby can make in forming negative angle part process, the material of convex closure part can add in the negative angle part just fully, thereby makes technical scheme of the present invention reach optimum efficiency.
Claims (7)
1, a kind of manufacturing process of the platy with negative angle, this method comprises draws board-like material, makes board-like material form at least two crossing faces, the material side shaping with after drawing is characterized in that, described draw to make form the convex closure part on the described face; Described side shaping makes and forms the negative angle part on another face, makes the material of convex closure part add to this negative angle part simultaneously.
2, manufacturing process as claimed in claim 1, the angle between wherein said two crossing faces are that 30 degree are to 150 degree.
3, manufacturing process as claimed in claim 2, the angle between wherein said two crossing faces are that 90 degree are to 100 degree.
4, as any described manufacturing process in the above-mentioned claim, the size of wherein said convex closure part makes that when the side shaping material of described convex closure part adds to the negative angle part fully, makes described product material that the distortion of extending not take place basically.
5, manufacturing process as claimed in claim 1, wherein said platy is the automobile top-cap of a kind of magnetic tape trailer portion, kink that this automobile top-cap comprises the top, extend downwards from the top tail end and the afterbody that extends back from the tail end of kink, described manufacturing process comprises board-like material is drawn the shape that becomes to have top, kink and afterbody, forms the convex closure part simultaneously on afterbody; Then kink is carried out the side shaping to form the negative angle part, make the material of convex closure part add to this negative angle part simultaneously.
6, manufacturing process as claimed in claim 5 wherein kink being carried out the side shaping with after forming the negative angle part, carries out edge-cutting and hole-punching and flanging and restriking to automobile top-cap, forms final automobile top-cap.
7, manufacturing process as claimed in claim 5 wherein kink being carried out the side shaping with before forming the negative angle part, carries out edge-cutting and hole-punching to automobile top-cap; And kink being carried out the side shaping, automobile top-cap is carried out flanging and restriking, form final automobile top-cap with after forming the negative angle part.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNB2005101159251A CN100486730C (en) | 2005-11-11 | 2005-11-11 | Method for forming platy pieces with negative angle |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNB2005101159251A CN100486730C (en) | 2005-11-11 | 2005-11-11 | Method for forming platy pieces with negative angle |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN1962112A true CN1962112A (en) | 2007-05-16 |
| CN100486730C CN100486730C (en) | 2009-05-13 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CNB2005101159251A Expired - Fee Related CN100486730C (en) | 2005-11-11 | 2005-11-11 | Method for forming platy pieces with negative angle |
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| CN (1) | CN100486730C (en) |
Cited By (9)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102814430A (en) * | 2012-08-14 | 2012-12-12 | 奇瑞汽车股份有限公司 | Stamping method of top cover outer plate with skylight |
| CN102825132A (en) * | 2012-09-04 | 2012-12-19 | 东莞市精力仁模具有限公司 | Punching technology of handle of cabinet freezer and punching die thereof |
| CN104014692A (en) * | 2014-05-26 | 2014-09-03 | 通用模具工业（吴江）有限公司 | Process for solving wrinkling problem of metal plate with flanging edge based on finite element analysis |
| CN104707903A (en) * | 2015-04-03 | 2015-06-17 | 安徽江淮汽车股份有限公司 | Stamping molding process for outer plate tail part of head cover of automotive covering part and stamping mold |
| CN105499431A (en) * | 2015-12-21 | 2016-04-20 | 安徽江淮汽车股份有限公司 | Stamping forming process and trimming and shaping composite mould for automobile roof cover |
| CN108787873A (en) * | 2018-08-21 | 2018-11-13 | 安徽江淮汽车集团股份有限公司 | A kind of automobile head cover tail portion wrinkles and impression treatment process |
| CN109530540A (en) * | 2018-12-20 | 2019-03-29 | 四川成飞集成汽车模具有限公司 | A kind of car roof product rear portion tailgate avoids part punching press new method |
| CN110695177A (en) * | 2019-10-18 | 2020-01-17 | 芜湖创挚汽车科技有限公司 | Processing method for preventing stretching, stamping and wrinkling at corners of inner door panel |
| CN110976649A (en) * | 2019-12-20 | 2020-04-10 | 奇瑞汽车股份有限公司 | Three railway carriage or compartment vapour car roof afterbody turn-ups plastic mould |
-
2005
- 2005-11-11 CN CNB2005101159251A patent/CN100486730C/en not_active Expired - Fee Related
Cited By (12)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102814430A (en) * | 2012-08-14 | 2012-12-12 | 奇瑞汽车股份有限公司 | Stamping method of top cover outer plate with skylight |
| CN102814430B (en) * | 2012-08-14 | 2014-11-26 | 奇瑞汽车股份有限公司 | Stamping method of top cover outer plate with skylight |
| CN102825132A (en) * | 2012-09-04 | 2012-12-19 | 东莞市精力仁模具有限公司 | Punching technology of handle of cabinet freezer and punching die thereof |
| CN102825132B (en) * | 2012-09-04 | 2014-11-12 | 东莞市精力仁模具有限公司 | Punching technology of handle of cabinet freezer and punching die thereof |
| CN104014692A (en) * | 2014-05-26 | 2014-09-03 | 通用模具工业（吴江）有限公司 | Process for solving wrinkling problem of metal plate with flanging edge based on finite element analysis |
| CN104707903A (en) * | 2015-04-03 | 2015-06-17 | 安徽江淮汽车股份有限公司 | Stamping molding process for outer plate tail part of head cover of automotive covering part and stamping mold |
| CN105499431A (en) * | 2015-12-21 | 2016-04-20 | 安徽江淮汽车股份有限公司 | Stamping forming process and trimming and shaping composite mould for automobile roof cover |
| CN108787873A (en) * | 2018-08-21 | 2018-11-13 | 安徽江淮汽车集团股份有限公司 | A kind of automobile head cover tail portion wrinkles and impression treatment process |
| CN109530540A (en) * | 2018-12-20 | 2019-03-29 | 四川成飞集成汽车模具有限公司 | A kind of car roof product rear portion tailgate avoids part punching press new method |
| CN110695177A (en) * | 2019-10-18 | 2020-01-17 | 芜湖创挚汽车科技有限公司 | Processing method for preventing stretching, stamping and wrinkling at corners of inner door panel |
| CN110976649A (en) * | 2019-12-20 | 2020-04-10 | 奇瑞汽车股份有限公司 | Three railway carriage or compartment vapour car roof afterbody turn-ups plastic mould |
| CN110976649B (en) * | 2019-12-20 | 2021-11-02 | 奇瑞汽车股份有限公司 | Three railway carriage or compartment vapour car roof afterbody turn-ups plastic mould |
Also Published As
| Publication number | Publication date |
|---|---|
| CN100486730C (en) | 2009-05-13 |
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Granted publication date: 20090513 Termination date: 20161111 |