CN103831344B - The adjustable band punching die of a kind of concave-convex mold - Google Patents

The adjustable band punching die of a kind of concave-convex mold Download PDF

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Publication number
CN103831344B
CN103831344B CN201410123357.9A CN201410123357A CN103831344B CN 103831344 B CN103831344 B CN 103831344B CN 201410123357 A CN201410123357 A CN 201410123357A CN 103831344 B CN103831344 B CN 103831344B
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feeding
die
punch
pedestal
strip
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CN103831344A (en
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王兴松
李波
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Southeast University
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Southeast University
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Abstract

The invention discloses the adjustable band punching die of a kind of concave-convex mold, comprise upper die component, lower mold assemblies, strip guide assembly.Die in punch in upper die component, pilot pin and lower mold assemblies can carry out the adjustment of position at strip feed direction, therefore mould can the strip of punching press plurality of specifications, thus reduces costs.Strip guide assembly, ensures that strip is is steadily come in and gone out mould, improves the stability of strip punching press.Mould of the present invention also can arrange self-feeding assembly, feeding guide block is wherein coordinated by inclined-plane with feeding slide block, moving up and down of upper die component is converted to the horizontal movement of self-feeding assembly, automatic feeding function is completed by feeding hook, thus improve production efficiency upper die component convex mould and separate with pilot pin, after strip is accurately located by pilot pin, punch starts punching press, thus ensures the positional precision of punching.

Description

The adjustable band punching die of a kind of concave-convex mold
Technical field
The invention belongs to blanking die field, relate to the adjustable band punching die of a kind of concave-convex mold.
Background technology
Current main flow punching die, its concave-convex mold part is all be fixedly mounted on upper and lower mould, and position cannot regulate, and therefore a kind of punching die can only process a kind of part of specification.For some parts, same type still has several different size, and its difference is that the relative position relation between hole is different.For the product that this specification is similar, if each specification all needs corresponding one set of die, production cost will certainly be improved.Therefore be necessary to provide a kind of concave-convex mold adjustable die form, just can produce the product of multiple similar specification by one set of die.
The effect of strip feed mechanism is the automatic feeding function of the strip that moved up and down utilizing mould.Save the cost of artificial feeding, can greatly enhance productivity.Therefore automatic feeding mould has a wide range of applications demand.
Summary of the invention
Technical problem: the invention provides namely a kind of can complete multiple similar specification strip punching part processing by one set of die, save labour turnover, the adjustable band punching die of the concave-convex mold of enhancing productivity.
Technical scheme: the adjustable band punching die of concave-convex mold of the present invention, comprises upper die component, correspondence is arranged on lower mold assemblies below upper die component, is arranged on the strip guide assembly of lower mold assemblies upper side;
Upper die component comprises top mold frame, be arranged on the die shank on top mold frame top, be arranged on the guide pin bushing of top mold frame bottom, be successively set on the backing plate on the downside of top mold frame, slide block fixed by punch fixed pedestal and adjustable punch, and be fixedly installed on adjustable punch and fix punch in slide block and pilot pin, adjustable punch is fixed slide block and is embedded in punch fixed pedestal, and slidable adjustment can be carried out in the chute of punch fixed pedestal, fit with backing plate lower surface after slide block and punch fixed pedestal are fixed through adjustable punch in punch and pilot pin upper end, pilot pin comprises positioning section and is arranged on two guiding cambered surfaces of positioning section lower end, positioning section lower surface height is equal to or less than punch lower surface height, two guide the opposing setting of cambered surface, and connect in cambered surface bottom end,
Lower mold assemblies comprises lower mold holder, be arranged on the guide pillar on lower mold holder top, be arranged on the die fixed pedestal of lower mold holder upper side, be arranged on the die on die fixed pedestal, stock guide, and the positive stripper be arranged on above die and stock guide, die embeds in die fixed pedestal, and slidable adjustment can be carried out in the chute of die fixed pedestal, die is provided with the punching hole corresponding with punch, and the correcting pin-and-hole corresponding with pilot pin, two stock guides are separately positioned on outside die, positive stripper is all fixedly connected with two stock guides, guide pillar embeds in guide pin bushing,
Strip guide assembly comprises the rear bearing sheet that is arranged on lower mold assemblies top and front end panel, be arranged on rear bearing sheet after two groups roll shaft, be arranged on front end panel before two groups roll shaft.
In a kind of preferred version of concave-convex mold of the present invention adjustable band punching die, die fixed pedestal is provided with self-feeding assembly, self-feeding assembly comprises the feeding guide block being arranged on punch fixed pedestal one end and is arranged on feeding slide block on die fixed pedestal and feeding hook pedestal, be arranged on the adjustable feeding hook fixed block on feeding hook pedestal, be arranged on the feeding hook in adjustable feeding hook fixed block, be arranged on the feeding hook Compress Spring on the upside of feeding hook, and be arranged on the back-moving spring of feeding hook pedestal one end, the other end of feeding hook pedestal is fixedly connected with feeding slide block, on feeding slide block and feeding guide block, correspondence is provided with lead-in chamfered, adjustable feeding hook fixed block embeds in feeding hook pedestal, and slidable adjustment can be carried out in the chute of feeding hook pedestal, feeding hook lower end is provided with the lead-in chamfered towards feedstock direction, and can move up and down in the inner chamber of adjustable feeding hook fixed block.
In a kind of preferred version of concave-convex mold of the present invention adjustable band punching die, feeding hook Compress Spring is provided with feeding hook spring bumper cover, in back-moving spring, is provided with back-moving spring guide rod.
The adjustable band punching die of concave-convex mold of the present invention, can complete the processing of plurality of specifications strip punching part, and self-feeding in process.
Beneficial effect: compared with prior art, strip blanking die of the present invention, punch is fixed slide block by removable punch and is embedded on punch fixed pedestal, and can in the chute of punch fixed pedestal slidable adjustment, two punch distribute side by side, and they can regulate dislocation distance on strip feed direction.Corresponding die be also can in the chute of die fixed pedestal slidable adjustment, concave-convex mold adjusted in concert.Therefore, when the misalignment position of punching in strip changes, only need to regulate the position of concave-convex mold to complete process requirements, do not need again to do one set of die again, reduce production cost, improve the utilization rate of mould.
Mould of the present invention utilizes simple structure, moving up and down of top mold frame is converted to the feeding campaign of strip feed direction, thus realizes the automation of strip feeding, do not need additionally to add special feed mechanism, therefore can improve working (machining) efficiency, reduce die cost.
Mould of the present invention is attached with strip feeding guidance set, and first strip by the gap between two roll shafts, is then entered between concave-convex mold and complete punching, strip transported out after punching completes by two of rear side roll shafts.Therefore strip feeding guidance set can reduce the frictional force in feeding process, improves the stationarity of processing.
Accompanying drawing explanation
Fig. 1 is upper die component structure chart.
Fig. 2 is the A-A sectional view of Fig. 1.
Fig. 3 is lower mold assemblies structure chart.
Fig. 4 is the structure chart that strip feeding guidance set is arranged on lower mold assemblies.
Fig. 5 is self-feeding assembly feeding hook mounting structure figure.
Fig. 6 is the top view that self-feeding assembly installs in a mold.
Fig. 7 is A-A sectional view and the die punching process original state of Fig. 6.
Fig. 8 is state when just having started feeding in die punching process.
Fig. 9 is the state in die punching process at the end of feeding just.
Figure 10 is die punching process done state.
Figure 11 is die assembly body isometric view.
Figure 12 is die assembly body-side view.
Have in figure: top mold frame 10, die shank 11, backing plate 12, punch fixed pedestal 13, slide block 14 fixed by adjustable punch, punch 15, pilot pin 16, guide pin bushing 17, lower mold holder 20, guide pillar 21, die fixed pedestal 22, die 23, positive stripper 24, stock guide 25, punching hole 26, correcting pin-and-hole 27, rear bearing sheet 30, rear roll shaft 31, front end panel 32, front roll shaft 33, feeding slide block 40, spring bumper cover 41, feeding hook Compress Spring 42, feeding hook 43, adjustable feeding hook fixed block 44, feeding hook fixed pedestal 45, back-moving spring 46, back-moving spring guide rod 47, back-moving spring baffle plate 48, feeding regulates block 49, feeding guide block 410.
Detailed description of the invention
Below in conjunction with Figure of description and embodiment, clear, complete description is carried out to technical scheme of the present invention.Embodiment is only illustrating further the present invention program; after having read the embodiment of the present invention, those of ordinary skill in the art are to the amendment of various equivalents of the present invention and replace the scope all belonging to the protection that the present patent application claim limits.
As shown in Figures 1 to 12, the adjustable band punching die of concave-convex mold of the present invention, comprise: top mold frame 10, die shank 11, backing plate 12, punch fixed pedestal 13, slide block 14 fixed by adjustable punch, punch 15, pilot pin 16, guide pin bushing 17, lower mold holder 20, guide pillar 21, die fixed pedestal 22, die 23, positive stripper 24, stock guide 25, punching hole 26, correcting pin-and-hole 27, rear bearing sheet 30, rear roll shaft 31, front end panel 32, front roll shaft 33, feeding slide block 40, spring bumper cover 41, feeding hook Compress Spring 42, feeding hook 43, adjustable feeding hook fixed block 44, feeding hook fixed pedestal 45, back-moving spring 46, back-moving spring guide rod 47, back-moving spring baffle plate 48, feeding regulates block 49, feeding guide block 410.
As depicted in figs. 1 and 2, upper die component comprises top mold frame 10, is arranged on the die shank 11 on top mold frame 10 top, is arranged on the guide pin bushing 17 of top mold frame 10 bottom, slide block 14 fixed by backing plate 12, punch fixed pedestal 13 and the adjustable punch be successively set on the downside of top mold frame 10, and is fixedly installed on adjustable punch and fixes punch 15 in slide block 14 and pilot pin 16.Be connected by interference fit between die shank 11 with top mold frame 10, be connected by interference fit between guide pin bushing 17 with top mold frame 10, punch fixed pedestal 13 and top mold frame 10 are connected by screw and locate with straight pin, backing plate 12 pads between punch fixed pedestal 13 and top mold frame, fit in backing plate 12 upper side and top mold frame 10 downside, backing plate 12 downside and punch fixed pedestal 13 upper side are fitted, adjustable punch is fixed slide block 14 and is embedded in the chute of punch fixed pedestal 13, and slidable adjustment can be carried out in the chute of punch fixed pedestal 13, by screw, adjustable punch being fixed slide block 14 after adjustment completes is fixed in punch fixed pedestal 13, prevent from occurring in punch process loosening, punch 15 and pilot pin 16 are buckled in adjustable punch and fix in slide block 14, punch 15 aligns on strip feed direction with pilot pin 16, the pitch-row that punch 15 is wanted punching with the centre-to-centre spacing of pilot pin 16.After slide block 14 is fixed through adjustable punch in punch 15 and pilot pin 16 upper end and backing plate 12 lower surface fit, pilot pin 16 comprises positioning section and is arranged on two guiding cambered surfaces of positioning section lower end, positioning section lower surface height is lower than punch 15 lower surface height, two guide the opposing setting of cambered surface, and connect in cambered surface bottom end, the width of pilot pin 16 positioning section is identical with punch 15 width, during punching, pilot pin 16 first inserts in previous just made hole, utilize and guide cambered surface strip accurately to be located, then punch 15 just starts punching.
As shown in Figure 3 and Figure 4, lower mold assemblies comprises lower mold holder 20, is arranged on the guide pillar 21 on lower mold holder 20 top, is arranged on the die fixed pedestal 22 of lower mold holder 20 upper side, the die 23 be arranged on die fixed pedestal 22, stock guide 25, and the positive stripper 24 be arranged on above die 23 and stock guide 25, die fixed pedestal 22 is fixedly connected on lower mold holder 20 by screw, and locates with straight pin.Die 23 embeds in die fixed pedestal 22, and can carry out slidable adjustment in the chute of die fixed pedestal 22, is fixed in die fixed pedestal 22 by die 23 after having regulated by screw, prevents from occurring in punch process loosening.Die 23 is provided with punching hole 26 and correcting pin-and-hole 27, punching hole 26 and correcting pin-and-hole 27 align on strip feed direction, the pitch-row that punching hole 26 and correcting pin-and-hole 27 centre distance are institute's punching.Punching hole 26 is inserted through punch after strip 15, pilot pin 16 inserts correcting pin-and-hole 27, two stock guides 25 are separately positioned on outside die 23, the upper side of positive stripper 24 and two stock guides 25 is fitted, positive stripper 24 is connected by screw on die fixed pedestal 22, and locates with straight pin.Guide pillar 21 embeds in guide pin bushing 17, and upper die component and lower mold assemblies are mounted opposite.
As shown in Figure 4, strip guide assembly comprises the rear bearing sheet 30 that is arranged on lower mold assemblies top and front end panel 32, is arranged on rear bearing sheet 30 after two groups roll shaft 31, is arranged on front end panel 32 before two groups roll shaft 33.Rear bearing sheet 30 is fixedly connected on die fixed pedestal 22 by screw, is positioned at die fixed pedestal 22 rear end.Front end panel 32 is fixedly connected on lower mold holder 20 or on die fixed pedestal 22 by screw, is positioned at die fixed pedestal 22 rear end.Before two groups, roll shaft 33 two ends are connected with front end panel 32 by bearing, and after two groups, roll shaft 31 two ends are connected with rear bearing sheet 30 by bearing.Front roll shaft 33 is identical with the height residing for rear roll shaft 31, there is gap before two groups between roll shaft 33, and gap, slightly larger than the thickness of strip, exists gap between roll shaft 31 after two groups, and gap is slightly larger than the thickness of strip.Pass in the gap of strip material first in the past between roll shaft 33 during punching, after the gap entered between positive stripper 24 and die 23 completes punching, self-feeding assembly, by the feeding backward of strip material, is sent finally by the gap between rear roll shaft 31.
As shown in Figure 5 and Figure 6, die fixed pedestal 22 is provided with self-feeding assembly, self-feeding assembly comprises the feeding guide block 410 being arranged on punch fixed pedestal 13 one end, be arranged on the feeding slide block 40 on die fixed pedestal 22 and feeding hook pedestal 45, be arranged on the adjustable feeding hook fixed block 44 on feeding hook pedestal 45, be arranged on the feeding hook 43 in adjustable feeding hook fixed block 44, be arranged on the feeding hook Compress Spring 42 on the upside of feeding hook 43, be arranged on the feeding hook spring bumper cover 41 on adjustable feeding hook fixed block 44, and be arranged on back-moving spring 46 and the back-moving spring guide rod 47 of feeding hook pedestal 45 one end, the other end of feeding hook pedestal 45 is fixedly connected with feeding slide block 40, be fixedly connected with straight pin by screw between feeding guide block 410 with punch fixed pedestal 13.Back-moving spring baffle plate 48 is connected by screw at rear bearing sheet 30 upper surface, and back-moving spring 46 is blocked in its side.Adjustable feeding hook fixed block 44 embeds in feeding hook pedestal 45, and can carry out slidable adjustment in the chute of feeding hook pedestal 45, is marked closely, prevent from loosening after having regulated by screw.Feeding hook 43 lower end is provided with the lead-in chamfered towards feedstock direction, and can move up and down in the inner chamber of adjustable feeding hook fixed block 44.Feeding hook pedestal 45 is embedded in the chute on die fixed pedestal 22, and can slide in chute.On feeding slide block 40 and feeding guide block 410, correspondence is provided with lead-in chamfered, inclined-plane laminating on inclined-plane when forcing press moves downward with upper die component on feeding guide block 410 and feeding slide block 40, is converted to the motion of feeding material component on strip feedstock direction by downward motion.Because feeding hook 43 inserts in made hole during original state, thus strip by feeding hook 43 with moving to feed direction together, the distance of motion is the distance of a pitch-row.Back-moving spring 46 is compressed simultaneously, stored energy, when forcing press moves upward with upper die component, back-moving spring 46 extends, feeding material component is pushed away in the other direction towards strip charging, because feeding hook 43 lower end is provided with the lead-in chamfered towards feedstock direction, so feeding hook 43 can not strip toward loopback.Moved upward by inclined-plane feeding hook 43, until out rear feeding hook 43 end slippage in strip from hole, after feeding material component gets back to original state again, feeding hook 43 is fallen in previous hole.For feeding is prepared next time.Once complete punching and feeding process be as shown in Figure 7 to 10: die punching process original state as shown in Figure 7, press ram drives upper die component to move downward, move the inclined-plane of feeding guide block 410 and the contact of incline plane of feeding slide block 40 after a segment distance, as shown in Figure 8.Along with the continuation of upper die component declines, feeding guide block 410 is coordinated by inclined-plane makes feeding material component move backward, because feeding hook 43 inserts in hole made in strip, so strip moves backward along with self-feeding assembly, upper die component continues to decline, during the contacts side surfaces of the side of feeding guide block 410 and feeding slide block 40, as shown in Figure 9, now strip is just in time by feeding pitch-row feeding backward, strip stops backward afterwards, along with upper die component continuation decline pilot pin 16 and punch 15 are successively through the dumping pit on positive stripper 24, pilot pin 16 first inserts in manufactured hole and utilizes the guiding cambered surface of pilot pin 16 end to complete strip accurately to locate, pilot pin 16 is through in the correcting pin-and-hole 27 inserted after strip on die 23.Strip is accurately located rear punch 15 and is started punching, and punch 15 is through in the punching hole 26 inserted after strip on die 23.After punching completes, the positive stroke of press ram just terminates, as shown in Figure 9.Start revesal motion subsequently.Move upward punch 15 and pilot pin 16 of upper die component is released successively from the hole strip.After punch 15 and pilot pin 16 extract a segment distance completely out from positive stripper 24, feeding guide block 410 starts inclined-plane with feeding slide block 40 and coordinates, as shown in Figure 9.Back-moving spring 46 promotes self-feeding assembly and travels forward, the inclined-plane of feeding hook 43 and contacting of hole, promotes feeding hook 43 and moves upward, and strip can not be sent forward.Along with the reseting movement forward of self-feeding assembly, feeding hook 43 slides in previous hole in strip, for feeding is prepared next time.When feeding hook fixed pedestal 45 contacts with feeding block 49, self-feeding assembly stops travelling forward, and upper die component continues a upwards segment distance and gets back to initial position.Complete punch process successively.
When in strip, the dislocation distance of two rounds changes, as long as the dislocation distance of synchronously equidistant adjustment two groups of dies 23, the dislocation distance of two groups of punch 15, the dislocation distance of two groups of pilot pins 16, and the dislocation distance of two groups of feeding hooks 43.

Claims (2)

1. the adjustable band punching die of concave-convex mold, is characterized in that, this punching die comprises upper die component, correspondence is arranged on lower mold assemblies below described upper die component, is arranged on the strip guide assembly of described lower mold assemblies upper side;
Described upper die component comprises top mold frame (10), be arranged on the die shank (11) on described top mold frame (10) top, be arranged on the guide pin bushing (17) of top mold frame (10) bottom, be successively set on the backing plate (12) of top mold frame (10) downside, slide block (14) fixed by punch fixed pedestal (13) and adjustable punch, and be fixedly installed on described adjustable punch and fix punch (15) in slide block (14) and pilot pin (16), described adjustable punch is fixed slide block (14) and is embedded in punch fixed pedestal (13), and slidable adjustment can be carried out in the chute of punch fixed pedestal (13), punch (15) and pilot pin (16) upper end fix slide block (14) through adjustable punch and punch fixed pedestal (13) is fitted with backing plate (12) lower surface afterwards, pilot pin (16) comprises positioning section and is arranged on two guiding cambered surfaces of positioning section lower end, described positioning section lower surface height is lower than punch (15) lower surface height, described two guide the opposing setting of cambered surface, and connect in cambered surface bottom end,
Described lower mold assemblies comprises lower mold holder (20), be arranged on the guide pillar (21) on described lower mold holder (20) top, be arranged on the die fixed pedestal (22) of lower mold holder (20) upper side, be arranged on the die (23) on described die fixed pedestal (22), stock guide (25), and be arranged on the positive stripper (24) of described die (23) and stock guide (25) top, described die (23) embeds in die fixed pedestal (22), and slidable adjustment can be carried out in the chute of die fixed pedestal (22), described die (23) is provided with the punching hole (26) corresponding with punch (15), and the correcting pin-and-hole (27) corresponding with pilot pin (16), two stock guides (25) are separately positioned on die (23) outside, described positive stripper (24) is all fixedly connected with two stock guides (25), described guide pillar (21) embeds in guide pin bushing (17),
Described strip guide assembly comprises the rear bearing sheet (30) and front end panel (32) that are arranged on lower mold assemblies top, be arranged on roll shaft (31) after two groups on described rear bearing sheet (30), be arranged on roll shaft (33) before two groups on described front end panel (32), described die fixed pedestal (22) is provided with self-feeding assembly, described self-feeding assembly comprises the feeding guide block (410) being arranged on punch fixed pedestal (13) one end, be arranged on the feeding slide block (40) on die fixed pedestal (22) and feeding hook pedestal (45), be arranged on the adjustable feeding hook fixed block (44) on described feeding hook pedestal (45), be arranged on the feeding hook (43) in described adjustable feeding hook fixed block (44), be arranged on the feeding hook Compress Spring (42) of feeding hook (43) upside, and be arranged on the back-moving spring (46) of feeding hook pedestal (45) one end, the other end of feeding hook pedestal (45) is fixedly connected with feeding slide block (40), feeding slide block (40) and the upper correspondence of feeding guide block (410) are provided with lead-in chamfered, adjustable feeding hook fixed block (44) embeds in feeding hook pedestal (45), and slidable adjustment can be carried out in the chute of feeding hook pedestal (45), feeding hook (43) lower end is provided with the lead-in chamfered towards feedstock direction, and can move up and down in the inner chamber of adjustable feeding hook fixed block (44).
2. the adjustable band punching die of a kind of concave-convex mold according to claim 1, it is characterized in that, described feeding hook Compress Spring (42) is provided with feeding hook spring bumper cover (41), in described back-moving spring (46), is provided with back-moving spring guide rod (47).
CN201410123357.9A 2014-03-31 2014-03-31 The adjustable band punching die of a kind of concave-convex mold Active CN103831344B (en)

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