CN104174768A - Die structure and drawing method - Google Patents
Die structure and drawing method Download PDFInfo
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- CN104174768A CN104174768A CN201410436755.6A CN201410436755A CN104174768A CN 104174768 A CN104174768 A CN 104174768A CN 201410436755 A CN201410436755 A CN 201410436755A CN 104174768 A CN104174768 A CN 104174768A
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- flanging part
- die shoe
- upper bolster
- flanging
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Abstract
The invention discloses a die structure and a drawing method. The die structure comprises a die set, a first blank pressing part, a second blank pressing part, a punch set and a material pressing part; the first blank pressing part and the second blank pressing part are arranged on the die set in a mobile mode; the height of a highest point of the first blank pressing part is higher than that of a highest point of the die set; the height of a highest point of the second blank pressing part is higher than that of a highest point of the first blank pressing part; the punch set is arranged above the die set; the material pressing part is arranged on the punch set in a mobile mode; the material pressing part and the second blank pressing part are corresponding vertically; the height of a lowest point of the material pressing part is lower than that of a lowest point of the die set. The die structure has the advantages of reducing the drawing depth of sheet materials, effectively solving the problems that the sheet materials are easy to crack and the sheet material forming is unstable in the traditional drawing technology and improving the sheet material utilization rate due to the first blank pressing part, the second blank pressing part and the material pressing part which is vertically corresponding to the second blank pressing part.
Description
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, because the moulded degree of depth of plate is uneven, be subject to generally 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 cause the deep-seated of the moulded depth ratio product of plate to be put slightly dark, reach the mild transition of the plate shaping degree of depth and evenly walk the object of material.
Yet, because the locally-shaped degree of depth of plate deepens to cause in forming process sheet metal stretching more serious, very easily there is cracking phenomena, plate shaping is unstable, even cause plate to be scrapped, and the supplementary stock utilization that causes more greatly of technique reduces herein, 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 is to propose 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 draw.
Mould structure according to 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, the height of the peak of described the first flanging part 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 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; And binder part, described binder part is located on described upper bolster movably, and 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 the height of the minimum point of described upper bolster.
According to the mould structure of the embodiment 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, reduced 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.
Particularly, described die shoe has one of them in punch and die, described upper bolster has another in punch and die, described the first flanging part and described the second flanging part be jointly around described one of them the outward flange in described punch and described die, described another the outward flange setting in the contiguous described punch of described binder part and described die.
Alternatively, described the first flanging part forms annular shape, and described the second flanging part is located between described one of them and described the first flanging part in described punch and described die.
Further, one of them in described the second flanging part and described die shoe is provided with at least one limited block, on another in described the second flanging part and described die shoe, be formed with at least one stopper slot, described limited block coordinates so that described the second flanging part is removable on above-below direction with respect to described die shoe with corresponding described stopper slot.
Alternatively, described at least one, 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 the vertical direction and extends, and 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 a plurality of and described a plurality of limited blocks, and described stopper slot is the spaced apart distributions of a plurality of and described a plurality of stopper slots.
Alternatively, described the second flanging part is located on described die shoe movably by the first nitrogen spring, and described binder part 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.
The drawing method drawing according to the employing mould structure of second aspect present invention embodiment, described mould structure comprises die shoe, be located at movably the first flanging part and the second flanging part on die shoe, be located at the upper bolster of the top of described die shoe, and be located at movably the binder part on described upper bolster, the height of the peak of described the first flanging part is higher than the height of the peak of described die shoe, the height of the peak of described the second flanging part is higher than the height of the peak of described the first flanging part, described binder part is corresponding up and down with described the second flanging part, the height of the minimum point of described binder part is lower than the height of the minimum point of described upper bolster, described die shoe has punch, described upper bolster has die, described drawing method comprises the following 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 after described sheet material clamping, described binder part promotes described the second flanging part downwards and moves down with respect to described die shoe, and described the first flanging part of the downward promotion of described upper bolster 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, and described binder part moves up with respect to described upper bolster, after S5, described plate contact with the described punch of described die shoe, described plate starts moulding, until described punch and described die reach closure state moulding, completes.
Particularly, described the first flanging part and described the second flanging part be jointly around described one of them the outward flange in described punch and described die, described another the outward flange setting in the contiguous described punch of described binder part and described die.
Additional aspect of the present invention and advantage in the following description part provide, and part will become obviously from the following description, or recognize by practice of the present invention.
Accompanying drawing explanation
Above-mentioned and/or additional aspect of the present invention and advantage accompanying drawing below combination obviously and is easily understood becoming the description of embodiment, wherein:
Fig. 1 is according to the installation diagram of the die shoe of the mould structure of the embodiment of the present invention, the first flanging part and the second flanging part;
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.
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, 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, " front ", " afterwards ", " left side ", " right side ", " vertically ", " level ", " top ", " end ", " interior ", " outward ", " axially ", " radially ", orientation or the position relationship of indications such as " circumferentially " are based on orientation shown in the drawings or position relationship, only the present invention for convenience of description and simplified characterization, rather than device or the element of indication or hint indication must have specific 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 indication or hint relative importance or the implicit quantity that indicates indicated technical characterictic.Thus, one or more these features can be expressed or impliedly be comprised to the feature that is limited with " first ", " second ".In description of the invention, except as otherwise noted, the implication of " a plurality of " is two or more.
In description of the invention, it should be noted that, unless otherwise clearly defined and limited, term " installation ", " being connected ", " connection " should be interpreted broadly, and for example, can be to be fixedly connected with, and can be also to removably connect, or connect integratedly; 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.
Below with reference to Fig. 1-Fig. 6, describe according to the mould structure of the embodiment of the present invention.
As shown in Figure 1 and Figure 5, according to the mould structure of first aspect present invention embodiment, comprise die shoe 1, the first flanging part 2, the second flanging part 3, upper bolster 4 and binder part 5.
Particularly, mould structure is suitable for being arranged on lathe, wherein, die shoe 1 is arranged on lathe following table, upper bolster 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 the top of die shoe 1, that is to say upper bolster 4 and die shoe 1 certain distance that is spaced from each other on above-below direction.It should be noted that, the structure of lathe and operation etc. have been well known to those skilled in the art, repeat no more here.
In forming process, upper bolster 4 moves down with lathe top shoe, and when upper bolster 4 moves downward when reaching closure state with die shoe 1, 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 another in punch 11 and die 41, and punch 11 is suitable with die 41, after punch 11 and die 41 matched moulds, plate can be pressed into reservation shape.In other words, die shoe 1 has punch 11, and upper bolster 4 has die 41, as shown in Figure 1 and Figure 5; Or die shoe 1 has die 41, upper bolster 4 has punch 11 (scheming not shown).The concrete setting position that is appreciated that punch 11 and die 41 can specifically arrange according to actual requirement, and the present invention does not make particular determination to this.
The first flanging part 2 and the second flanging part 3 are located at respectively on die shoe 1 movably, in other words, the first flanging part 2 is located on die shoe 1 and with respect to die shoe 1 and can moves up and down, the second flanging part 3 is located on die shoe 1 and with respect to die shoe 1 and also can moves up and down, and 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 the first flanging part 2 and the common outward flange around above-mentioned punch 11 or die 41 of the second flanging part 3.For example, in the example of Fig. 1-Fig. 4, the upper surface of die shoe 1 is provided with on the upper surface that punch 11, the first flanging parts 2 and the second flanging part 3 be all located at die shoe 1 and around the periphery of punch 11, wrinkling to prevent plate peristoma part unstability in drawing process.
The height of the peak of the first flanging part 2 is higher than the height of the peak of die shoe 1, and 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.Like this, when upper bolster 4 moves down, can first touch 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 can move up and down with respect to 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 5 is lower than the height of the minimum point of upper bolster 4, like this, in the process moving down at die shoe 1, the binder part 5 on upper bolster 4 can first contact with the second flanging part 3 on die shoe 1, thus, can effectively reduce the drawing depth of plate, improve the stability of plate shaping, reduce plate cracking risk, 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, in the example of Fig. 5 and Fig. 6, the lower surface of die shoe 1 is provided with die 41, and binder part 5 is located on the lower surface of die shoe 1 and the periphery of contiguous die 41.
Wherein, the first flanging part 2, the second flanging part 3 and binder part 5 are removable in certain travel range respectively, and its concrete travel range can be according to actual requirement specific design, and the present invention does not do concrete restriction to this.
Before plate is drawn, first die shoe 1, the first flanging part 2 and the second flanging part 3 with punch 11 are seated to form die shoe assembly, upper bolster 4 and the binder part 5 with die 41 are seated to form upper bolster assembly simultaneously, die shoe assembly is arranged on lathe following table, upper bolster assembly is arranged on lathe upper table surface again.
While drawing, first plate is placed on die shoe assembly, start lathe, die shoe assembly is fixed with respect to lathe following table, upper bolster assembly moves down, in the process moving down at upper bolster assembly, part plate is clamped by the second flanging part 3 of the binder part 5 of upper bolster assembly and die shoe assembly, by to lathe, mould structures etc. regulate, upper bolster 4 and the first flanging part 2 can be arranged to roughly with binder part 5 and the second flanging part 3 simultaneously by sheet material clamping, thereby drive plate to move downward together, particularly, binder part 5 can promote the second flanging part 3 downwards and move 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 moved downward to extreme position (when the second flanging part 3 moves to behind this position, binder part 5 stops moving down from the second flanging part 3 resistances owing to being subject to, 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, thereby binder part 5 can move upward with respect to upper bolster 4, when binder part 5 moves to its limes superiors position (when binder part 5 moves to behind this position, just can not continue to move up with respect to upper bolster 4) after, die 41 on upper bolster 4 comes downwards to the punch 11 on die shoe 1 and contacts with plate, 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 be according to the difference of the plate of reality processing and adaptive change, and 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, when there are many places the darker position of the deep drawing of sheet degree of depth, a plurality of the second flanging parts 3 can be set on die shoe 1, to reduce drawing depth, improve 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 and with the second flanging part corresponding binder part 5 Shang Xia 3, reduced 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.When 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 forms annular shape, and the second flanging part 3 is located between above-mentioned one of them and the first flanging part 2 in punch 11 and die 41.With reference to Fig. 1 and in conjunction with Fig. 2-Fig. 4, the first flanging part 2 arranges around the punch 11 on die shoe 1, and limit the space that is suitable for preventing the second flanging part 3 between the posterior edges of punch 11 and the first flanging part 2, thereby the first flanging part 2 and the common periphery around punch 11 of the second flanging part 3.Be appreciated that the concrete shape of punch 11, the first flanging part 2 and the second flanging part 3 and position etc. can be according to the differences of the 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 plate 31, on another in the second flanging part 3 and die shoe 1, be formed with at least one slide guide face 12, that is to say, guide plate 31 can be located on the second flanging part 3, also can be located on die shoe 1, similarly, slide guide face 12 can be formed on the second flanging part 3, also can be formed on die shoe 1, but when 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, when guide plate 31 is located on die shoe 1, corresponding slide guide face 12 can only be formed on the second flanging part 3.Guide plate 31 coordinates so that the second flanging part 3 is removable on above-below direction with respect to die shoe 1 with corresponding slide guide face 12.
Thus, by coordinating of guide plate 31 and slide guide face 12, can limit well the second flanging part 3 with respect to die shoe 1 motion in the horizontal direction, and the second flanging part 3 substantially can only be removable on above-below direction with respect to die shoe 1, thereby effectively guaranteed the stationarity that the second flanging part 3 moves up and down.
According to a specific embodiment of the present invention, at least one guide plate 31 is located on the second flanging part 3, and at least one slide guide face 12 is formed on die shoe 1 and along the vertical direction and extends, and guide plate 31 can move up and down in corresponding slide guide face 12.Alternatively, guide plate 31 is the spaced apart distributions of a plurality of and a plurality of guide plates 31, and slide guide face 12 is the spaced apart distributions of a plurality of and a plurality of slide guide faces 12.
With reference to Fig. 2 and Fig. 4, the periphery wall of the second flanging part 3 is provided with a plurality of guide plates 31 along its circumferential spaced apart distribution, correspondingly, the rear side of punch 11 has groove, the second flanging part 3 is suitable for being contained in groove, on the internal perisporium of groove, be formed with a plurality of slide guide faces 12 along its circumferential spaced apart distribution, a plurality of guide plates 31 are corresponding one by one with a plurality of slide guide faces 12.During installation, a plurality of guide plates on the second flanging part 3 31 and a plurality of slide guide faces 12 in groove can be aligned, then the second flanging part 3 be put into groove downwards, easy to assembly.
Meanwhile, between the first flanging part 2 and punch 11, between binder part 5 and die 41, equally also can adopt slide guide face 12 and the mode of guide plate 31 to assemble.As shown in Figures 2 and 3, the periphery wall of punch 11 is provided with a plurality of guide plates 31 along its circumferential spaced apart distribution, on the internal perisporium of the first flanging part 2, be formed with a plurality of slide guide faces 12 along its circumferential spaced apart distribution, a plurality of guide plates 31 are corresponding one by one with a plurality of slide guide faces 12.As shown in Figure 5 and Figure 6, the periphery wall of binder part 5 is provided with a plurality of guide plates 31 along its circumferential spaced apart distribution, the rear side of die 41 has groove (scheming not shown), binder part 5 is suitable for being contained in this groove, is formed with a plurality of slide guide faces 12 that coordinate with a plurality of guide plates 31 on the internal perisporium of this groove.
Thus, before and after plate, side pressure charge level is considered separately binder surface moulding, with the most shallow binder surface, is as the criterion, and left and right sides binder surface 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, binder part 5 is located on upper bolster 4 movably by the second nitrogen spring, that is to say, the second flanging part 3 adopts the first nitrogen spring that pressure-plate-force is provided, and binder part 5 provides pressure-plate-force by the second nitrogen spring.The first flanging part 2 is located on die shoe 1 movably by air cushion, and in other words, the air cushion of the needed pressure-plate-force of the first flanging part 2 in lathe following table provides.
In addition, it should be noted that, the first flanging part 2 and the second flanging part 3 can be connected to die shoe 1 by threaded fastener respectively, corresponding threaded fastener can limit respectively the extreme position that the first flanging part 2 and the second flanging part 3 move upward, binder part 5 also can be connected to upper bolster 4 by threaded fastener, and corresponding threaded fastener can limit the extreme position that binder part 5 moves downward.Wherein, threaded fastener can be screw or bolt.
The drawing method drawing according to the employing mould structure of second aspect present invention embodiment, wherein, mould structure comprises: 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 die shoe 1 top upper bolster 4 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 height of the peak of die shoe 1, 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 5 is corresponding Shang Xia 3 with the second flanging part, and 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 are simultaneously by after sheet material clamping, binder part 5 promotes the second flanging part 3 downwards and moves down with respect to die shoe 1, and the downward first flanging part 2 that promotes of upper bolster 4 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, and binder part 5 moves up with respect to upper bolster 4; And
After S5, plate contact with the punch 11 of die shoe 1, plate starts moulding, until punch 11 reaches closure state moulding with die 41, completes.
In forming process, first plate is placed on die shoe assembly, start lathe, die shoe assembly is fixed with respect to lathe following table, upper bolster assembly moves down, in the process moving down at upper bolster assembly, part plate is clamped by the second flanging part 3 of the binder part 5 of upper bolster assembly and die shoe assembly, by to lathe, mould structures etc. regulate, upper bolster 4 and the first flanging part 2 can be arranged to roughly with binder part 5 and the second flanging part 3 simultaneously by sheet material clamping, thereby drive plate to move downward together, particularly, binder part 5 can promote the second flanging part 3 downwards and move 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 moved downward to extreme position (when the second flanging part 3 moves to behind this position, binder part 5 stops moving down from the second flanging part 3 resistances owing to being subject to, 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, thereby binder part 5 can move upward with respect to upper bolster 4, when binder part 5 moves to its limes superiors position (when binder part 5 moves to behind this position, just can not continue to move up with respect to upper bolster 4) after, die 41 on upper bolster 4 comes downwards to the punch 11 on die shoe 1 and contacts with plate, now plate starts moulding, until punch 11 and the complete matched moulds of die 41, moulding completes.Wherein, the concrete structure 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.
The drawing method drawing according to the employing mould structure of the embodiment of the present invention, can effectively reduce the drawing depth of plate, improves the stability of 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 one of them the outward flange in punch 11 and die 41, the outward flange setting of another in the contiguous punch 11 of binder part 5 and die 41.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 part 2 arranges around the punch 11 on die shoe 1, and limit the space that is suitable for preventing the second flanging part 3 between the posterior edges of punch 11 and the first flanging part 2, thereby 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 in groove.
According to the mould structure of the embodiment of the present invention and the drawing method that adopts this mould structure to draw, the structure of mould is optimized, solve traditional as easy as rolling off a log cracking of drawing work plate, the unsettled problem of stamping formability, improved the stock utilization of plate.
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.
Although illustrated and described embodiments of the invention, those having ordinary skill in the art will appreciate that: in the situation that not departing from principle of the present invention and aim, can carry out multiple variation, modification, replacement and modification to these embodiment, scope of the present invention is limited by claim and equivalent thereof.
Claims (10)
1. a mould structure, is characterized in that, 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, the height of the peak of described the first flanging part 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 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; And
Binder part, described binder part is located on described upper bolster movably, and 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 the height of the minimum point of described upper bolster.
2. mould structure according to claim 1, is characterized in that, described die shoe has one of them in punch and die, and described upper bolster has another in punch and die,
Described the first flanging part and described the second flanging part be jointly around described one of them the outward flange in described punch and described die, described another the outward flange setting in the contiguous described punch of described binder part and described die.
3. mould structure according to claim 2, is characterized in that, described the first flanging part forms annular shape, and described the second flanging part is located between described one of them and described the first flanging part in described punch and described die.
4. according to the mould structure described in any one in claim 1-3, it is characterized in that, one of them in described the second flanging part and described die shoe is provided with at least one limited block, on another in described the second flanging part and described die shoe, be formed with at least one stopper slot, described limited block coordinates so that described the second flanging part is removable on above-below direction with respect to described die shoe with corresponding described stopper slot.
5. mould structure according to claim 4, it is characterized in that, described at least one, 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 the vertical direction and extends, and described limited block can move up and down in the described stopper slot of correspondence.
6. mould structure according to claim 4, is characterized in that, described limited block is the spaced apart distributions of a plurality of and described a plurality of limited blocks, and described stopper slot is the spaced apart distributions of a plurality of and described a plurality of stopper slots.
7. mould structure according to claim 1, is characterized in that, described the second flanging part is located on described die shoe movably by the first nitrogen spring, and described binder part is located on described upper bolster movably by the second nitrogen spring.
8. mould structure according to claim 1, is characterized in that, described the first flanging part is located on described die shoe movably by air cushion.
9. a drawing method that adopts mould structure to draw, it is characterized in that, described mould structure comprises die shoe, be located at movably the first flanging part and the second flanging part on die shoe, be located at the upper bolster of the top of described die shoe, and be located at movably the binder part on described upper bolster, the height of the peak of described the first flanging part is higher than the height of the peak of described die shoe, the height of the peak of described the second flanging part is higher than the height of the peak of described the first flanging part, described binder part is corresponding up and down with described the second flanging part, the height of the minimum point of described binder part is lower than the height of the minimum point of described upper bolster, described die shoe has punch, described upper bolster has die, described drawing method comprises the following steps:
S1, plate is placed on described die shoe;
S2, described upper bolster move down together with described binder part;
After S3, described binder part and described the second flanging part and described upper bolster and described the first flanging part step up described plate simultaneously, described binder part promotes described the second flanging part downwards and moves down with respect to described die shoe, and described the first flanging part of the downward promotion of described upper bolster 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, and described binder part moves up with respect to described upper bolster;
After S5, described plate contact with the described punch of described die shoe, described plate starts moulding, until described punch and described die reach closure state moulding, completes.
10. the drawing method that employing mould structure according to claim 9 draws, it is characterized in that, described the first flanging part and described the second flanging part be jointly around described one of them the outward flange in described punch and described die, described another the outward flange setting in the contiguous described punch of described binder part and described die.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201410436755.6A CN104174768B (en) | 2014-08-29 | 2014-08-29 | mould structure and drawing method |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201410436755.6A CN104174768B (en) | 2014-08-29 | 2014-08-29 | mould structure and drawing method |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN104174768A true CN104174768A (en) | 2014-12-03 |
| CN104174768B CN104174768B (en) | 2016-05-11 |
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| CN201410436755.6A Active CN104174768B (en) | 2014-08-29 | 2014-08-29 | mould structure and drawing method |
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| 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 |
| CN105855398A (en) * | 2016-06-03 | 2016-08-17 | 昆山威特亿模具有限公司 | Draw forming die structure |
| 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 |
| CN106925652A (en) * | 2017-05-09 | 2017-07-07 | 安徽江淮汽车集团股份有限公司 | A kind of drawing forming process and its stamping mold |
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| JPH10296346A (en) * | 1997-04-25 | 1998-11-10 | Taiho Seiki Co Ltd | Pressing method |
| RU2292976C2 (en) * | 2004-10-07 | 2007-02-10 | Открытое акционерное общество "АВТОВАЗ" | Method for drawing parts of sheet material (variants) |
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| CN103586342B (en) * | 2013-10-15 | 2017-04-12 | 浙江吉利汽车研究院有限公司 | Drawing die |
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| 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 |
| CN105855398A (en) * | 2016-06-03 | 2016-08-17 | 昆山威特亿模具有限公司 | Draw forming die structure |
| 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 |
| CN106925652A (en) * | 2017-05-09 | 2017-07-07 | 安徽江淮汽车集团股份有限公司 | A kind of drawing forming process and its stamping mold |
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