The specific embodiment
As shown in Figure 3, the continuous stamping die of cover product of this specific embodiment, illustrated in figures 1 and 2 in processing, when having the lid product of beveled aperture, divide totally 11 stations for g1 to g11 with whole processing process.Wherein, the g1 station is towards the correcting hole and the process-cut station; The correcting hole is can accurately locate usefulness for the station of back; And process-cut is to prepare for the pull and stretch station of back, promptly excises excess stock, keep pull and stretch body of material and carrier, but this station is only gone out a part of process-cut.The g2 station is towards the process-cut station; As accurately locating, go out remaining process-cut with the correcting hole of going out previously.The g3 station is an idle station; The main purpose that idle station is set has two: one, because too conference generation distortion of template will be carried out the branch plate here.Two is that the patrix stripper of first group of template is movable, and the patrix stripper of ensuing second group of template is inactive, and the counterdie stripper is movable, it is excessive and cause the strip distortion to produce before and after the strip height floating like this when mold work, so be necessary to set up an empty work step, to reduce the influence that stripper produces strip because of the height floating in this position.The g4 station is the pull and stretch station, mainly strip is produced plastic deformation by pull and stretch at this station, forms to have the product of lid general shape lid product blank.The g5 station is the shaping station, and purpose is lid product blank that pull and stretch is come out, is pressed into the shape and size of requirement more up to specification.The g6 station is an idle station, and the purpose that this idle station is set is with the g3 station.The g7 station is for towards positive face station: purpose is to go out three on the caping 11 of product
![Figure G200910253741XD00031](https://patentimages.storage.***apis.com/2a/ce/8c/aa3450efd5d8e7/G200910253741XD00031.png)
4.5 and one
10 through hole, this punching station with general progressive die is as broad as long, and this paper no longer describes in detail.The g8 station is towards the beveled aperture station, is promptly becoming with horizontal plane on 30 jiaos the taper seat to go out three
8
beveled aperture 13, this is the key point of this continuous stamping die of cover product, this paper back will be described in detail this part.The g9 station is the pre-cutting station, this station is equivalent to blanking, whole lid product separates with strip as carrier basically, but not exclusively separate, in general for the thick strip of 1mm, also keep 0.05~0.10mm and do not cut off, thereby guarantee that covering product still is connected on the carrier, and can be taken to next station by safety, the appearance and size of being cut will meet the expansion requirement of postorder flange diameter and height dimension in addition.The g10 station is the flange station, and the edge that covers the product blank is carried out flange by mould, particularly is the shape of turning on extruding necessarily.The g11 station is exactly will cover product to cut off fully from strip for cutting off station.Particularly, flange bonnet product can be enclosed in the big hole of carrier, send a step forward by carrier, and the lid product will skid off outside the mold automatically, drops on the conveyer belt to flow in the turnover box, cuts off useless band material carrier simultaneously.Just finished the continuous drawing of whole lid product by above each station.
The continuous stamping die of cover product of this specific embodiment, each non-idle station in the corresponding corresponding diagram 3, (according to feedstock direction from front to back) comprises as the lower part from left to right: dash correcting hole and process-cut device on the g1 station, dash the process-cut device on the g2 station, setup for drawing parts on the g4 station, apparatus for shaping on the g5 station, dash the front aperture apparatus on the g7 station, dash the beveled aperture device on the g8 station, pre-cutting device on the g9 station, shearing device on hemmer on the g10 station and the g11 station, each device is finished the corresponding actions of each station respectively in proper order.In the continuous stamping die of cover product of the specific embodiment of the invention, dashing the beveled aperture device on aforementioned g8 station, all the other are conventional design, and this paper is not described in detail in this.
Main inventive point of the present invention except aforementioned arrangement to each station in the whole processing technology, also is dashing the beveled aperture Design of device on the g8 station, mainly describes in conjunction with Fig. 4, Fig. 5 beveled aperture device that liquidates below.
By Fig. 4 and Fig. 5 as seen, the beveled aperture device that dashes in this specific embodiment comprises: patrix 80, counterdie 81, oblique impact structure 82, elastic construction 83, discharging structure 84 and last elastic construction 85 down.
Described oblique impact structure 82 mainly is positioned at discharging structure 84, is arranged between patrix 80 and the counterdie 81 with discharging structure 84.In this specific embodiment, patrix 80 is a dynamic model, and oblique impact structure 82 is used for finishing towards the action of beveled aperture 13 under the driving of patrix 80.Discharging structure 84 is used for discharging and auxiliary compressing.Following elastic construction 83 and last elastic construction 85 are used to cooperate discharging structure 84, play discharging and the auxiliary effect that compresses of helping.Wherein descend elastic construction 83 to be positioned at counterdie 81, last elastic construction 85 is positioned at patrix 80.
Described patrix 80 comprises: upper bolster 801, upper padding plate 802 and upper mould fixed plate 803; The three is close to fixedly connected formation patrix 80, and upper padding plate 802 is sandwiched between upper bolster 801 and the upper mould fixed plate 803, wherein is positioned at the upper padding plate 802 of below and selects for use the higher material of hardness to make.This kind structure is mainly in order to simplify the structure of patrix 80, to reduce the difficulty of processing of patrix 80.
Described counterdie 81 comprises: die shoe 811, lower bolster 812, die block 813 and die 814.Wherein die shoe 811, lower bolster 812, die block 813 threes are close to fixedly connectedly, and lower bolster 812 is positioned at the top of die shoe 811, and below die block 813.Die 814 is fixed in the die block 813, and protruding upward in the upper surface of die block 813.This kind structure main maintenance and the replacing of die 814 for convenience, and the support strength below the raising die 814.
Described oblique impact structure 82 comprises: slide block 821, punch case 822 and punch 823.Described punch 823 is fixed in the punch case 822, is arranged in the discharging structure 84 by punch case 822.Slide block 821 is fixed in the patrix 70, particularly is fixed in the upper mould fixed plate 803, thus can be with patrix 80 rectilinear motion up and down reciprocatingly.Why say that it is a slide block 821, be because it is provided with an oblique T shape chute, one end and the T shape chute of described punch case 822 are suitable, rectilinear motion up and down reciprocatingly with slide block 821, be converted to the oblique impact motion of punch 823, thereby can on inclined-plane 12, go out beveled aperture 13 perpendicular to lid product inclined-plane 12.The lid product of this specific embodiment processing, three beveled aperture 13 have been symmetrically distributed on its conical inclined surface 12, therefore oblique impact structure 82 also has three covers accordingly, and 120 degree are arranged at interval respectively, thereby can once 12 upper punches go out three beveled aperture 13. shown in Figure 2 on the inclined-plane
Described discharging structure 84 plays discharging and the auxiliary effect that compresses, and concrete structure comprises: stripper 841, discharging cover plate 842 and stripper insert 843.Stripper 841 is fixedlyed connected with the discharging cover plate 842 that is positioned at its top, and stripper is inserted and 843 is embedded among stripper 841 and the discharging cover plate 842.Aforementioned punch case 822 and punch 823 just are arranged on stripper and insert among 843, and punch case 822 can be with punch 823 relative strippers to insert 843 to slide, thereby finish the oblique impact action.This kind structure not only can be simplified the structure of discharging structure 84, reduces difficulty of processing; And helping keeping in repair punch case 822 and punch 823, stripper inserts 843 if wearing and tearing only need to change stripper and insert 843, and need not change whole discharging structure 84.
Described down elastic construction 83 is used to cooperate discharging structure 84 dischargings, and extracts from the beveled aperture of going out for described oblique impact structure at the mould initial stage of opening power is provided.Be provided with in the described counterdie and hold the accommodation hole of elastic construction 83 down; Described down elastic construction 83 promptly is arranged in the described accommodation hole, and down the lower end elastic reaction of elastic construction 83 in counterdie 81, the upper end then elastic reaction in strip.
Following elastic construction has many covers, and the elastic construction concrete structure comprises under every cover: following discharging push rod 831, following discharging spring 832 and lower spring lid 833.Be provided with the through hole that runs through up and down in the counterdie 81, following elastic construction 83 promptly is arranged in the described through hole.The upper end of following discharging spring 832 by described down discharging push rod 831 elastic reactions in the lower surface of strip; The lower end of following discharging spring 832 withstands on the upper surface of lower spring lid 833, and lower spring lid 833 is fixedlyed connected with counterdie 81, from the described through hole of lower end closed.
Last elastic construction 85 is slightly different with following elastic construction, and it comprises: upper spring lid 851, loading and unloading material spring 852, loading and unloading material push rod 853 and attachment screw 854.As shown in Figure 4 and Figure 5, fixedly connected with stripper 841 in the lower end of attachment screw 854, and the upper end then is connected with the lower end of loading and unloading material push rod 853.After loading and unloading material push rod 853 runs through discharging cover plate 842, the lower end that loading and unloading material spring 852 is withstood in its upper end; And upper spring lid 851 is withstood in the upper end of loading and unloading material spring 852, and is enclosed in the patrix 80 by upper spring lid 851.
When the mould mould was closed, patrix 80 had been with oblique impact structure 82 and discharging structure 84 to move downward, to as shown in Figure 5 the time, and discharging structure 84 contact counterdies 81 and stop motion is pressed on strip between stripper 841 and the die block 813 simultaneously.After this patrix 80 continues to move downward and carries out matched moulds; Loading and unloading material push rod 853 acts on loading and unloading material spring 852, and loading and unloading material spring 852 is further compressed; The elastic force of loading and unloading material spring 852 then acts on discharging structure 84 by loading and unloading material push rod 853 and attachment screw 854, thereby plays the auxiliary effect that compresses.Simultaneously, patrix 80 drives punch case 822 with inclined-plane 12 motions of punch 823 perpendicular to lid product blank by slide block 821, thereby goes out beveled aperture 13 on inclined-plane 12.This moment, mould was closed fully as shown in Figure 4.
When mould was opened, patrix 80 began to move upward, and this moment, discharging structure 84 was also not moving, but punch 823 begins to withdraw from from the beveled aperture of going out 13.Arrive then when shown in Figure 5, stripper 841 beginnings separate with die block 813, move on the net with patrix, open fully until mould.In this process, lid product blank elastic construction 83 down, under the cooperation of elastic construction 85 and discharging structure 84, deviate from and finish discharging from stripper 841 and die 814, so just finished a working cycles.After this, be connected lid product blank on the strip and can be sent to next station with strip and carry out pre-cutting,
What need additional emphasize is that because mould is opened the initial stage, patrix 80 begins to move upward, this moment, discharging structure 84 was also not moving, but punch 823 need withdraw from from the beveled aperture of going out 13, and the phenomenon that may exist punch 823 to be difficult to extract then is especially for for thicker strip.This is because the die sinking initial stage; punch 823 still is in the beveled aperture 13; but but can't move obliquely; can only be drawn vertically upward by force by patrix; the result causes punch 823 to be broken or the edge of a knife of die 814 is scrapped by kibe; the cost of scrapping a punch 823 is 149.94 yuan; the cost of scrapping a die 814 is 1151.9 yuan; add and shut down the form removal tool; the time of renewal part and expense, just not saying delivered product on time, once the product of this batch is just in vain at last so as long as mould is bad; just can't regain one's original capital, but also must do for bad twice.Conventional solution is with spring punch 823 to be resetted below single punch 823, but wants bigger brute spring is installed in the limited space of the progressive die, and possibility is little, and when spring lost efficacy and also can't determine.And if spring force is not enough, then certainly existing punch 823 can't pull out and the phenomenon of mold damage smoothly, and find that through overtesting this kind method not only can't meet design requirement, and production efficiency also can't be satisfied the demand only to reach 15~20/minute.
In this specific embodiment, the withdrawal force of punch 823 is from following discharging structure 83, particularly from following discharging spring 832.The following discharging spring 832 that in fact 6 brute forces are arranged in this specific embodiment, the continuous stamping die of cover product that experimental results show that this specific embodiment punch 823 never occurred and pulled out the phenomenon of not coming out, production efficiency has also reached 30~40/minute, thereby has obtained better economic benefits.
Above content be in conjunction with concrete preferred implementation to further describing that the present invention did, can not assert that concrete enforcement of the present invention is confined to these explanations.For the general technical staff of the technical field of the invention, without departing from the inventive concept of the premise, can also make some simple deduction or replace, all should be considered as belonging to protection scope of the present invention.