CN104174768B - mould structure and drawing method - Google Patents

mould structure and drawing method Download PDF

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Publication number
CN104174768B
CN104174768B CN201410436755.6A CN201410436755A CN104174768B CN 104174768 B CN104174768 B CN 104174768B CN 201410436755 A CN201410436755 A CN 201410436755A CN 104174768 B CN104174768 B CN 104174768B
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China
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described
part
flanging part
die shoe
flanging
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CN201410436755.6A
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Chinese (zh)
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CN104174768A (en
Inventor
滕松
杨少臣
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长城汽车股份有限公司
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Publication of CN104174768A publication Critical patent/CN104174768A/en
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Publication of CN104174768B publication Critical patent/CN104174768B/en

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Abstract

The invention discloses a kind of mould structure and drawing method, described mould structure comprises: die shoe, the first flanging part, the second flanging part, upper bolster and binder part, the first flanging part and the second flanging part are located at respectively on die shoe movably, the height of the peak of the first flanging part is higher than the height of die shoe peak, and the height of the peak of the second flanging part is higher than the height of the peak of the first flanging part; Upper bolster is located at the top of die shoe; Binder part is located on upper bolster movably, and binder part is corresponding up and down with the second flanging part, and the height of the minimum point of binder part is lower than the height of the minimum point of upper bolster. According to mould structure of the present invention, by the first flanging part and the second flanging part and the binder part upper and lower corresponding with the second flanging part are set, reduce the drawing depth of plate, effectively solve traditional as easy as rolling off a log cracking of drawing work plate, the unsettled problem of plate shaping, improved the stock utilization of plate.

Description

Mould structure and drawing method

Technical field

The present invention relates to technical field of vehicle manufacture, especially relate to a kind of mould structure and drawing method.

Background technology

In correlation technique, point out, due to the moulded degree of depth inequality of plate, be subject to general drawing order technique and structural limitations,Binder surface is generally milder curved surface and can sharply change along with the degree of depth of plate, finally causes plate entirety to be madeThe deep-seated of type depth ratio product is put slightly dark, reaches the mild transition of the plate shaping degree of depth and evenly walk the object of material.

But, because the locally-shaped degree of depth of plate deepens to cause in forming process sheet metal stretching more serious, very easily there is crackingPhenomenon, plate shaping is unstable, even causes plate to be scrapped, and herein technique supplement cause more greatly stock utilization to fallLow, car load manufacturing cost increases. In addition, be subject to the factors such as machine tool accuracy to affect blank holder pressure-plate-force unstable.

Summary of the invention

The present invention is intended at least solve one of technical problem existing in prior art. For this reason, one object of the present invention existsIn proposing a kind of mould structure, can reduce the drawing depth of plate in drawing process.

Another object of the present invention is to propose a kind of drawing method that adopts mould structure to carry out drawing.

According to the mould structure of first aspect present invention embodiment, comprising: die shoe; The first flanging part and the second flanging part,Described the first flanging part and described the second flanging part are located at respectively on described die shoe movably, described the first flanging partThe height of peak higher than the height of the peak of described die shoe, the height of the peak of described the second flanging part is highIn the height of the peak of described the first flanging part; Upper bolster, described upper bolster is located at the top of described die shoe; WithAnd binder part, described binder part is located on described upper bolster movably, and described binder part and described the second flanging partUpper and lower corresponding, the height of the minimum point of described binder part is lower than the height of the minimum point of described upper bolster.

According to the mould structure of the embodiment of the present invention, by arrange the first flanging part and the second flanging part and with the second pressureLimit part is the binder part of correspondence up and down, has reduced the drawing depth of plate, has effectively solved traditional drawing work plateAs easy as rolling off a log cracking, the unsettled problem of plate shaping, improved the stock utilization of plate.

Particularly, described die shoe has one of them in punch and die, and described upper bolster has in punch and dieAnother, described the first flanging part and described the second flanging part are jointly around described in described punch and described dieThe outward flange of one of them, described another the outward flange in the contiguous described punch of described binder part and described die is establishedPut.

Alternatively, described the first flanging part is formed as annular shape, and described the second flanging part is located at described punch and described recessedBetween described one of them and described the first flanging part in mould.

Further, one of them in described the second flanging part and described die shoe is provided with at least one limited block, instituteState on another in the second flanging part and described die shoe and be formed with at least one stopper slot, described limited block is with correspondingDescribed stopper slot coordinate so that described the second flanging part is removable on above-below direction with respect to described die shoe.

Alternatively, described at least one, limited block is located on described the second flanging part, and described at least one, stopper slot is formed onOn described die shoe and along the vertical direction, extend, described limited block can move up and down in the described stopper slot of correspondence.

Alternatively, described limited block is the spaced apart distributions of multiple and described multiple limited blocks, and described stopper slot is multiple and instituteState the spaced apart distribution of multiple stopper slots.

Alternatively, described the second flanging part is located on described die shoe movably by the first nitrogen spring, described binderPart is located on described upper bolster movably by the second nitrogen spring.

Alternatively, described the first flanging part is located on described die shoe movably by air cushion.

Carry out the drawing method of drawing according to the employing mould structure of second aspect present invention embodiment, described mould structure bagDraw together die shoe, be located at the first flanging part and the second flanging part on die shoe movably, be located at the upper of described die shoeSide upper bolster and be located at movably the binder part on described upper bolster, the peak of described the first flanging partHeight is higher than the height of the peak of described die shoe, and the height of the peak of described the second flanging part is higher than described firstThe height of the peak of flanging part, described binder part is corresponding up and down with described the second flanging part, described binder part minimumThe height of point is lower than the height of the minimum point of described upper bolster, and described die shoe has punch, and described upper bolster has recessedMould, described drawing method comprises the following steps: S1, plate is placed on described die shoe; S2, described upper bolsterMove down together with described binder part; S3, described binder part and described the second flanging part and described upper bolster and instituteState the first flanging part simultaneously by after described sheet material clamping, described binder part promotes described the second flanging part downwards with respect to instituteState die shoe and move down, and described upper bolster promote downwards described the first flanging part with respect to described die shoe to moving downMoving; S4, described the second flanging part move downward to described upper bolster after extreme position and continue to move down, described binderPart moves up with respect to described upper bolster; Described plate after S5, described plate contact with the described punch of described die shoeMaterial starts moulding, completes until described punch and described die reach closure state moulding.

Particularly, described the first flanging part and described the second flanging part are jointly around described in described punch and described dieThe outward flange of one of them, described another the outward flange in the contiguous described punch of described binder part and described die is establishedPut.

Additional aspect of the present invention and advantage in the following description part provide, and part will become from the following descriptionObviously, or by practice of the present invention recognize.

Brief description of the drawings

Above-mentioned and/or additional aspect of the present invention and advantage from conjunction with below accompanying drawing to becoming bright the description of embodimentAobvious and easy understanding, wherein:

Fig. 1 is according to the assembling of the die shoe of the mould structure of the embodiment of the present invention, the first flanging part and the second flanging partFigure;

Fig. 2 is the stereogram of the die shoe shown in Fig. 1;

Fig. 3 is the stereogram of the first flanging part shown in Fig. 1;

Fig. 4 is the stereogram of the second flanging part shown in Fig. 1;

Fig. 5 is according to the installation diagram of the upper bolster of the mould structure of the embodiment of the present invention and binder part;

Fig. 6 is the stereogram of the binder part shown in Fig. 5.

Reference numeral:

1: die shoe; 11: punch; 12: slide guide face;

2: the first flanging parts; 3: the second flanging parts; 31: guide plate;

4: upper bolster; 41: die; 5: binder part.

Detailed description of the invention

Describe embodiments of the invention below in detail, the example of described embodiment is shown in the drawings, wherein phase from start to finishSame or similar label represents same or similar element or has the element of identical or similar functions. Below by referenceThe embodiment that accompanying drawing is described is exemplary, only 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 " " center ", " laterally ", " length ", " width ", " thickness "," on ", D score, 'fornt', 'back', " left side ", " right side ", " vertically ", " level ", " top ", " end ", " interior ", " outward ", " axleTo ", orientation or the position relationship of the instruction such as " radially ", " circumferentially " be based on orientation shown in the drawings or position relationship, onlyBe the present invention for convenience of description and simplified characterization, instead of device or the element of instruction or hint indication must have spyFixed orientation, with specific orientation structure and operation, therefore can not be interpreted as limitation of the present invention.

In addition, term " first ", " second " be only for describing object, and can not be interpreted as instruction or hint relative importanceOr the implicit quantity that indicates indicated technical characterictic. Thus, the feature that is limited with " first ", " second " can be expressedOr impliedly comprise one or more these features. In description of the invention, except as otherwise noted, " multiple "Implication be two or more.

In description of the invention, it should be noted that, unless otherwise clearly defined and limited, term " installation ", " phaseConnect ", " connection " should be interpreted broadly, and for example, can be to be fixedly connected with, and can be also to removably connect, or integratedlyConnect; Can be to be directly connected, also can indirectly be connected by intermediary, can be the connection of two element internals.For the ordinary skill in the art, can concrete condition understand above-mentioned term concrete meaning in the present invention.

Describe according to the mould structure of the embodiment of the present invention below with reference to Fig. 1-Fig. 6.

As shown in Figure 1 and Figure 5, according to the mould structure of first aspect present invention embodiment, comprise die shoe 1, firstFlanging part 2, the second flanging part 3, upper bolster 4 and binder part 5.

Particularly, mould structure is suitable for being arranged on lathe, and wherein, die shoe 1 is arranged on lathe following table, onDie holder 4 is connected with lathe upper table surface, and upper bolster 4 is corresponding Shang Xia 1 with die shoe, and now upper bolster 4 is located at die shoe 1Top, that is to say upper bolster 4 and die shoe 1 certain distance that is spaced from each other on above-below direction. NeedBright, structure and the operation etc. of lathe are well known to those skilled in the art, repeat no more here.

In forming process, upper bolster 4 moves down with lathe top shoe, when upper bolster 4 move downward to die shoe 1While reaching closure state, the plate being placed on die shoe 1 can be processed to reservation shape.

Die shoe 1 has one of them in punch 11 and die 41, and upper bolster 4 has punch 11 and die 41In another, punch 11 is suitable with die 41, after punch 11 and die 41 matched moulds, plate can be pressed intoReservation shape. In other words, die shoe 1 has punch 11, and upper bolster 4 has die 41, as Fig. 1 and Fig. 5 instituteShow; Or die shoe 1 has die 41, upper bolster 4 has punch 11 (scheming not shown). Be appreciated that protrudingThe concrete setting position of mould 11 and die 41 can specifically arrange according to actual requirement, and the present invention does not make special limit to thisFixed.

The first flanging part 2 and the second flanging part 3 are located at respectively on die shoe 1 movably, in other words, and the first flanging part2 are located on die shoe 1 and with respect to die shoe 1 and can move up and down, and the second flanging part 3 is located on die shoe 1 and relativelyAlso can move up and down in die shoe 1, the motion of the first flanging part 2 and the second flanging part 3 is not interfered mutually.

Punch 11 or die 41 that the first flanging part 2 and the second flanging part 3 are all close on die shoe 1 arrange, and firstFlanging part 2 and the common outward flange around above-mentioned punch 11 or die 41 of the second flanging part 3. For example, at Fig. 1-Fig. 4Example in, the upper surface of die shoe 1 is provided with punch 11, the first flanging parts 2 and the second flanging part 3 is all located at downOn the upper surface of die holder 1 and around the periphery of punch 11, rise to prevent plate peristoma part unstability in drawing processWrinkle.

The height of the peak of the first flanging part 2 is higher than the height of the peak of die shoe 1, the second flanging part 3 the highestThe height of point is higher than the height of the peak of the first flanging part 2. Like this, in the time that upper bolster 4 moves down, can be firstTouch the second flanging part 3, then touch the first flanging part 2, finally touch die shoe 1.

Binder part 5 is located on upper bolster 4 movably, and binder part 5 is located on upper bolster 4, and binder part 5 is relativeCan move up and down in upper bolster 4. Binder part 5 is corresponding Shang Xia 3 with the second flanging part, the height of the minimum point of binder part 5Spend the height lower than the minimum point of upper bolster 4, like this, in the process moving down at die shoe 1, on upper bolster 4Binder part 5 can first contact with the second flanging part 3 on die shoe 1, thus, can effectively reduce the drawing of plateThe degree of depth, the stability of raising plate shaping, reduces plate cracking risk, has improved the utilization rate of material.

Punch 11 on the contiguous upper bolster 4 of binder part 5 or the outward flange setting of die 41. For example, at Fig. 5 and Fig. 6Example in, the lower surface of die shoe 1 is provided with die 41, binder part 5 is located on the lower surface of die shoe 1 and is adjacentThe periphery of nearly die 41.

Wherein, the first flanging part 2, the second flanging part 3 and binder part 5 are removable in certain stroke range respectively,Its concrete stroke range can be according to actual requirement specific design, and the present invention does not do concrete restriction to this.

Before plate is carried out to drawing, first die shoe 1, the first flanging part 2 and second flanging of punch 11 will be there isPart 3 is seated to form die shoe assembly, upper bolster 4 and the binder part 5 with die 41 is seated simultaneouslyTo form upper bolster assembly, then die shoe assembly is arranged on lathe following table, upper bolster assembly is arranged on latheOn table top.

When drawing, first plate is placed on die shoe assembly, starts lathe, die shoe assembly is left office with respect to latheFace is fixed, and upper bolster assembly moves down, in the process moving down at upper bolster assembly, and part plateThe second flanging part 3 by the binder part 5 of upper bolster assembly and die shoe assembly clamps, by lathe, mould structureDeng regulating, upper bolster 4 and the first flanging part 2 can be arranged to roughly and binder part 5 and the second flanging part 3Simultaneously by sheet material clamping, thereby drive plate to move downward together, particularly, binder part 5 can promote second downwardsFlanging part 3 moves down (now binder part 5 is roughly motionless with respect to upper bolster 4) with respect to die shoe 1,And upper bolster 4 promotes the first flanging part 2 downwards and moves down with respect to die shoe 1, when the second flanging part 3 is to moving downMove that (, when the second flanging part 3 moves to behind this position, binder part 5 is owing to being subject to from the second flanging to extreme positionPart 3 resistances stop moving down, thereby the second flanging part 3 can not continue to move down with respect to die shoe 1) after,Because upper bolster assembly continues to move down with respect to die shoe assembly, thus binder part 5 can with respect to upper bolster 4 toUpper motion, when binder part 5 move to its limes superiors position (when binder part 5 moves to behind this position, just can not phaseContinue to move up for upper bolster 4) after, the die 41 on upper bolster 4 with plate come downwards to die shoe 1 onPunch 11 contact, now plate starts moulding, until punch 11 and the complete matched moulds of die 41, moulding completes.

Here, it should be noted that, the concrete setting position of the second flanging part 3 on upper bolster 4 can add according to actualThe difference of the plate of work and adaptive change, the second flanging part 3 is preferably placed on the darker position of the deep drawing of sheet degree of depth,To reach the object of the locally-shaped degree of depth that reduces plate.

Further, in the time that there are many places the darker position of the deep drawing of sheet degree of depth, can on die shoe 1, arrange multiple secondFlanging part 3, to reduce drawing depth, improves the stability of plate shaping and the stock utilization of plate.

Thus, according to the mould structure of the embodiment of the present invention, by arrange the first flanging part 2 and the second flanging part 3, withAnd with the second flanging part corresponding binder part 5 Shang Xia 3, reduced the drawing depth of plate, effectively solved traditionalThe as easy as rolling off a log cracking of drawing work plate, the unsettled problem of plate shaping, improved the stock utilization of plate. When inciting somebody to actionWhen above-mentioned mould structure is applied on vehicle, can reduce the manufacturing cost of car load.

According to one embodiment of present invention, the first flanging part 2 is formed as annular shape, and the second flanging part 3 is located at punch11 and die 41 in above-mentioned one of them and the first flanging part 2 between. With reference to Fig. 1 and in conjunction with Fig. 2-Fig. 4, firstFlanging part 2 arranges around the punch 11 on die shoe 1, and between the posterior edges of punch 11 and the first flanging part 2Limit the space that is suitable for preventing the second flanging part 3, thereby the first flanging part 2 and the second flanging part 3 are jointly around protrudingThe periphery of mould 11. Be appreciated that concrete shape and the position etc. of punch 11, the first flanging part 2 and the second flanging part 3Can be according to the difference of plate of processing and adaptive change, the present invention does not do concrete restriction to this.

As shown in Figure 2 and Figure 4, one of them in the second flanging part 3 and die shoe 1 is provided with at least one guide plateOn another in 31, the second flanging parts 3 and die shoe 1, be formed with at least one slide guide face 12, that is to say, leadPlate 31 can be located on the second flanging part 3, also can be located on die shoe 1, and similarly, slide guide face 12 can shapeBecome on the second flanging part 3, also can be formed on die shoe 1, but in the time that guide plate 31 is located on the second flanging part 3,Corresponding slide guide face 12 can only be formed on die shoe 1, similarly, in the time that guide plate 31 is located on die shoe 1, rightThe slide guide face 12 of answering can only be formed on the second flanging part 3. Guide plate 31 coordinates so that second with corresponding slide guide face 12Flanging part 3 is removable on above-below direction with respect to die shoe 1.

Thus, by coordinating of guide plate 31 and slide guide face 12, can limit well the second flanging part 3 with respect to counterdieSeat 1 motion in the horizontal direction, and the second flanging part 3 substantially can only can on above-below direction with respect to die shoe 1Mobile, thus the stationarity that the second flanging part 3 moves up and down effectively ensured.

According to a specific embodiment of the present invention, at least one guide plate 31 is located on the second flanging part 3, at least oneSlide guide face 12 is formed on die shoe 1 and along the vertical direction and extends, and guide plate 31 can be upper and lower in corresponding slide guide face 12Mobile. Alternatively, guide plate 31 is the spaced apart distributions of multiple and multiple guide plates 31, and slide guide face 12 is multiple and multiple leadingThe spaced apart distribution of sliding surface 12.

With reference to Fig. 2 and Fig. 4, the periphery wall of the second flanging part 3 is provided with the multiple guide plates 31 along its circumferential spaced apart distribution,Correspondingly, the rear side of punch 11 has groove, and the second flanging part 3 is suitable for being contained in groove, on the internal perisporium of grooveBe formed with the multiple slide guide faces 12 along its circumferential spaced apart distribution, multiple guide plates 31 are corresponding one by one with multiple slide guide faces 12.When installation, the multiple guide plates on the second flanging part 3 31 and the multiple slide guide faces 12 in groove can be aligned, thenThe second flanging part 3 is put into groove downwards, easy to assembly.

Also can adopt meanwhile, between the first flanging part 2 and punch 11, equally between binder part 5 and die 41Slide guide face 12 assembles with the mode of guide plate 31. As shown in Figures 2 and 3, the periphery wall of punch 11 is provided with edgeOn the internal perisporium of multiple guide plates 31, the first flanging parts 2 of its circumferential spaced apart distribution, be formed with along its circumferentially spaced apart pointMultiple slide guide faces 12 of cloth, multiple guide plates 31 are corresponding one by one with multiple slide guide faces 12. As shown in Figure 5 and Figure 6, pressThe periphery wall of materials and parts 5 is provided with the multiple guide plates 31 along its circumferential spaced apart distribution, and the rear side of die 41 has groove (figureNot shown), binder part 5 is suitable for being contained in this groove, is formed with multiple guide plates 31 and joins on the internal perisporium of this grooveThe multiple slide guide faces 12 that close.

Thus, before and after plate, side pressure charge level is considered separately binder surface moulding, is as the criterion with the most shallow binder surface, and press the left and right sidesCharge level is made with front side binder surface, need not consider the mild transition with rear side binder surface.

Wherein, the second flanging part 3 is located on die shoe 1 movably by the first nitrogen spring, and binder part 5 is by theTwo nitrogen springs are located on upper bolster 4 movably, that is to say, the second flanging part 3 adopts the first nitrogen spring to carryFor pressure-plate-force, binder part 5 provides pressure-plate-force by the second nitrogen spring. The first flanging part 2 by air cushion movablyBe located on die shoe 1, in other words, the needed pressure-plate-force of the first flanging part 2 is provided by the air cushion in lathe following table.

In addition, it should be noted that, the first flanging part 2 can be connected by threaded fastener respectively with the second flanging part 3To die shoe 1, corresponding threaded fastener can limit respectively that the first flanging part 2 and the second flanging part 3 move upwardExtreme position, binder part 5 also can be connected to upper bolster 4 by threaded fastener, and corresponding threaded fastener can be limitThe extreme position that level pressure materials and parts 5 move downward. Wherein, threaded fastener can be screw or bolt.

Carry out the drawing method of drawing according to the employing mould structure of second aspect present invention embodiment, wherein, mould structureComprise: die shoe 1, be located at the first flanging part 2 and the second flanging part 3 on die shoe 1 movably, be located at counterdieThe upper bolster 4 of seat 1 top and be located at movably the binder part 5 on upper bolster 4.

Particularly, as shown in Fig. 1-Fig. 6, the height of the peak of the first flanging part 2 is higher than the peak of die shoe 1Height, the height of the peak of the second flanging part 3 is higher than the height of the peak of the first flanging part 2, binder part 5Corresponding Shang Xia 3 with the second flanging part, the height of the minimum point of binder part 5 is lower than the height of the minimum point of upper bolster 4.Die shoe 1 has punch 11, and upper bolster 4 has die 41.

Wherein, drawing method comprises the following steps:

S1, plate is placed on die shoe 1;

S2, upper bolster 4 move down together with binder part 5;

S3, binder part 5 and the second flanging part 3 and upper bolster 4 and the first flanging part 2, simultaneously by after sheet material clamping, are pressedMaterials and parts 5 promote the second flanging part 3 downwards and move down with respect to die shoe 1, and upper bolster 4 promotes the first pressure downwardsLimit part 2 moves down with respect to die shoe 1;

S4, the second flanging part 3 move downward to upper bolster 4 after extreme position and continue to move down, binder part 5 with respect toUpper bolster 4 moves up; And

After S5, plate contact with the punch 11 of die shoe 1, plate starts moulding, until punch 11 reaches with die 41Closure state moulding completes.

In forming process, first plate is placed on die shoe assembly, starts lathe, die shoe assembly is with respect to latheFollowing table is fixed, and upper bolster assembly moves down, in the process moving down at upper bolster assembly, and partPlate is clamped by the second flanging part 3 of the binder part 5 of upper bolster assembly and die shoe assembly, by lathe, mouldStructures etc. regulate, and upper bolster 4 and the first flanging part 2 can be arranged to roughly and binder part 5 and the second flangingPart 3 is simultaneously by sheet material clamping, thereby drive plate moves downward together, and particularly, binder part 5 can promote downwardsThe second flanging part 3 moves down (now binder part 5 is roughly motionless with respect to upper bolster 4) with respect to die shoe 1,And upper bolster 4 promotes the first flanging part 2 downwards and moves down with respect to die shoe 1, when the second flanging part 3 is to moving downMove that (, when the second flanging part 3 moves to behind this position, binder part 5 is owing to being subject to from the second flanging to extreme positionPart 3 resistances stop moving down, thereby the second flanging part 3 can not continue to move down with respect to die shoe 1) after,Because upper bolster assembly continues to move down with respect to die shoe assembly, thus binder part 5 can with respect to upper bolster 4 toUpper motion, when binder part 5 move to its limes superiors position (when binder part 5 moves to behind this position, just can not phaseContinue to move up for upper bolster 4) after, the die 41 on upper bolster 4 with plate come downwards to die shoe 1 onPunch 11 contact, now plate starts moulding, until punch 11 and the complete matched moulds of die 41, moulding completes. ItsIn, the concrete structures of mould structure etc. are existing specific descriptions in the mould structure of the above-mentioned first aspect embodiment of the present invention,Do not repeat them here.

Carry out the drawing method of drawing according to the employing mould structure of the embodiment of the present invention, can effectively reduce the drawing of plateThe degree of depth, the stability of raising plate shaping, reduces plate cracking risk, improves the utilization rate of material.

According to a specific embodiment of the present invention, the first flanging part 2 and the second flanging part 3 are jointly around punch 11 HesThe outward flange of one of them in die 41, the outward flange of another in the contiguous punch 11 of binder part 5 and die 41Arrange. With reference to Fig. 1 and in conjunction with Fig. 2-Fig. 6, the upper surface of die shoe 1 is provided with punch 11, the first flanging parts 2 and encirclesPunch 11 on die shoe 1 arranges, and limits and be suitable between the posterior edges of punch 11 and the first flanging part 2Prevent the space of the second flanging part 3, thus the first flanging part 2 and the common periphery around punch 11 of the second flanging part 3.The lower surface of die shoe 1 is provided with die 41, and the rear side of punch 11 has groove, and the second flanging part 3 is suitable for being contained inIn groove.

According to the mould structure of the embodiment of the present invention and the drawing method that adopts this mould structure to carry out drawing, the structure of mouldBe optimized, solved traditional as easy as rolling off a log cracking of drawing work plate, the unsettled problem of stamping formability, improveThe stock utilization of plate.

In the description of this description, reference term " embodiment ", " some embodiment ", " illustrative examples ", " showExample ", the description of " concrete example " or " some examples " etc. the specific features that means to describe in conjunction with this embodiment or example, structure,Material or feature are contained at least one embodiment of the present invention or example. In this manual, showing above-mentioned termThe statement of meaning property not necessarily refers to identical embodiment or example. And, specific features, structure, material or the spy of descriptionPoint can be with suitable mode combination in any one or more embodiment or example.

Although illustrated and described embodiments of the invention, those having ordinary skill in the art will appreciate that: not de-In the situation of principle of the present invention and aim, can carry out multiple variation, amendment, replacement and modification to these embodiment,Scope of the present invention is limited by claim and equivalent thereof.

Claims (8)

1. adopt mould structure to carry out a drawing method for drawing, it is characterized in that, described mould structure comprise die shoe,Be located at movably the first flanging part and the second flanging part on die shoe, be located at the top of described die shoe upper bolster,And being located at movably the binder part on described upper bolster, the height of the peak of described the first flanging part is higher than under describedThe height of the peak of die holder, the height of the peak of described the second flanging part is higher than the peak of described the first flanging partHighly, described binder part is corresponding up and down with described the second flanging part, and the height of the minimum point of described binder part is lower than on describedThe height of the minimum point of die holder, described die shoe has punch, and described upper bolster has die, and described drawing method comprisesFollowing steps:
S1, plate is placed on described die shoe;
S2, described upper bolster move down together with described binder part;
S3, described binder part and described the second flanging part and described upper bolster and described the first flanging part are simultaneously by described plateAfter material steps up, described binder part promotes described the second flanging part downwards and moves down with respect to described die shoe, and on describedDie holder promotes described the first flanging part downwards and moves down with respect to described die shoe;
S4, described the second flanging part move downward to described upper bolster after extreme position and continue to move down, described binder partMove up with respect to described upper bolster;
S5, described plate contact with the described punch of described die shoe after described plate start moulding, until described punch withDescribed die reaches closure state moulding to be completed.
2. the drawing method that employing mould structure according to claim 1 carries out drawing, is characterized in that, describedOne flanging part and described the second flanging part are jointly around the outward flange of described punch, outside the contiguous described die of described binder partEdge arranges.
3. the drawing method that employing mould structure according to claim 2 carries out drawing, is characterized in that, describedOne flanging part is formed as annular shape, and described the second flanging part is located between described punch and described the first flanging part.
4. the drawing method that carries out drawing according to the employing mould structure described in any one in claim 1-3, its feature existsIn, one of them in described the second flanging part and described die shoe is provided with at least one limited block, described the second flangingOn another in part and described die shoe, be formed with at least one stopper slot, described limited block and corresponding described stopper slotCoordinate so that described the second flanging part is removable on above-below direction with respect to described die shoe.
5. the drawing method that employing mould structure according to claim 4 carries out drawing, is characterized in that, at least oneIndividual described limited block is located on described the second flanging part, and described at least one, stopper slot is formed on described die shoe and along upperLower direction is extended, and described limited block can move up and down in the described stopper slot of correspondence.
6. the drawing method that employing mould structure according to claim 4 carries out drawing, is characterized in that, described limitPosition piece is the spaced apart distributions of multiple and described multiple limited blocks, and described stopper slot is that multiple and described multiple stopper slots are spaced apartDistribute.
7. the drawing method that employing mould structure according to claim 1 carries out drawing, is characterized in that, describedTwo flanging parts are located on described die shoe movably by the first nitrogen spring, and described binder part is by the second nitrogen springBe located at movably on described upper bolster.
8. the drawing method that employing mould structure according to claim 1 carries out drawing, is characterized in that, describedOne flanging part is located on described die shoe movably by air cushion.
CN201410436755.6A 2014-08-29 2014-08-29 mould structure and drawing method CN104174768B (en)

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Application Number Priority Date Filing Date Title
CN201410436755.6A CN104174768B (en) 2014-08-29 2014-08-29 mould structure and drawing method

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CN104174768A CN104174768A (en) 2014-12-03
CN104174768B true CN104174768B (en) 2016-05-11

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CN107225181B (en) * 2016-03-25 2019-08-27 宝山钢铁股份有限公司 A kind of automobile B-column class part hot stamping die of no blank holder
CN105798100A (en) * 2016-06-03 2016-07-27 昆山达亚汽车零部件有限公司 Forming method for vehicle secondary bracket
CN105945151A (en) * 2016-06-03 2016-09-21 昆山达亚汽车零部件有限公司 Forming technology of automobile part
CN106077281A (en) * 2016-06-03 2016-11-09 昆山威特亿模具有限公司 Drawing and shaping mold for automobile metal plate work
CN105855398A (en) * 2016-06-03 2016-08-17 昆山威特亿模具有限公司 Draw forming die structure
CN106925652B (en) * 2017-05-09 2019-06-04 安徽江淮汽车集团股份有限公司 A kind of drawing forming process and its stamping die

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RU2292976C2 (en) * 2004-10-07 2007-02-10 Открытое акционерное общество "АВТОВАЗ" Method for drawing parts of sheet material (variants)
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