CN102389924B - Large-size shallow-drawing stamping part progressive die - Google Patents

Large-size shallow-drawing stamping part progressive die Download PDF

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Publication number
CN102389924B
CN102389924B CN201110304705.9A CN201110304705A CN102389924B CN 102389924 B CN102389924 B CN 102389924B CN 201110304705 A CN201110304705 A CN 201110304705A CN 102389924 B CN102389924 B CN 102389924B
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China
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die
shallow
bolster
plate
downside
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CN201110304705.9A
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Chinese (zh)
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CN102389924A (en
Inventor
王新湧
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扬州广菱电子有限公司
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Publication of CN102389924A publication Critical patent/CN102389924A/en
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Publication of CN102389924B publication Critical patent/CN102389924B/en

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Abstract

The invention discloses an LCD TV internal used large-size shallow-drawing stamping part progressive die in the technical field of stamping machine tool dies. The large-size shallow-drawing stamping part progressive die comprises an upper die and a lower die which are arranged correspondingly, wherein a stripper plate of the upper die and a lower die plate of the lower die are correspondingly provided with multiple stations, two stations at the front end in the upper die are respectively and correspondingly provided with cut punches, the upper ends of the cut punches are fixed on a punch holder, the lower ends of the cut punches extend into punch holes passing through a stop plate and the stripper plate from top to bottom, lower cuts corresponding to the cut punches are arranged on the lower die plate, each cut punch consists of multiple sections of unit punches which are arranged at intervals in the width direction of the die, and the unit punches corresponding to the two stations at the front end are arranged in a staggered manner and cover a shallow-drawing area of a material tape in the width direction of the die. Before the material tape is subjected to shallow drawing, a seam is cut on the material tape by the device, thereby avoiding harmful effects on other stations caused by the deformation of the material tape, and further improving the processing accuracy and production efficiency. The device is used for processing large-size shallow-drawing sheets.

Description

Progressive die for big-size shallow-drawing sheet metal component

Technical field

The present invention relates to the processing mold using on a kind of press machine, particularly a kind of processing mold for shallow recessing, shallow drawing sheet metal component.

Background technology

Along with rapid economic development, product technology is constantly progressive, LCD TV, and the household electrical appliance such as computer have spread to every household, and market competition is also more and more fierce.This just requires producer ensureing, on the basis of product quality, constantly to reduce product cost, strengthens the core competitiveness of product.This also has higher requirement to the mould of producing parts: should ensure product quality, enhance productivity again, reduce single products production cost.

There is a kind of large scale shallow recessing, shallow drawing sheet metal component inner use of LCD TV complete machine, because its size is larger, comprise shallow recessing, shallow drawing, this large-sized sheet workpiece of the prior art, is not suitable for adopting progressive die to process, and subject matter is, in the time carrying out drawing, thin plate is easy to produce Pressing Deformation, and it shrinks on the length direction of mould, causes the precise decreasing of workpiece; Therefore, in traditional mode of production, be, all to rely on many molds, multiple operation to produce, production efficiency is lower, and product is long in each inter process turnaround time, and fraction defective is high, labor strength is large, makes single products cost high, has weakened the competitiveness of product in market.

Mould of the prior art, generally comprises the corresponding upper die and lower die that arrange; Described patrix comprises upper bolster, upper bolster upside is connected with mounting plate through upper cushion block, upper bolster upper surface is provided with knockout plate, between knockout plate and mounting plate, be provided with polyurethane spring, upper bolster downside is provided with upper padding plate, upper padding plate downside is connected with train wheel bridge, and train wheel bridge below is connected with baffle plate through contour screw movable up and down, and baffle plate downside is fixedly connected with stripper plate; Knockout plate downside is provided with knockout rod, conflicts at knockout plate downside in knockout rod upper end, conflicts at baffle plate upside in knockout rod lower end; Described counterdie comprises die shoe, and die shoe downside is connected with bottom plate through lower cushion block, is provided with lower bolster on die shoe, and lower bolster upside is provided with lower bolster, and die shoe is provided with jigger pin, and jigger pin lower end is provided with liftout spring, and stretch out outside die shoe jigger pin upper end; Lower bolster is provided with the stretching convex die that protrudes from lower bolster surface.At present, while utilizing this mould for machining large-sized thin plate sheet metal component, can only adopt many molds, multiple operation to produce, its production efficiency is low.

Summary of the invention

The object of this invention is to provide a kind of progressive die for big-size shallow-drawing sheet metal component, to improve the production efficiency of large scale shallow recessing, shallow drawing sheet metal component, the rate of reducing the number of rejects and seconds and single products production cost.

The object of the present invention is achieved like this: a kind of progressive die for big-size shallow-drawing sheet metal component, comprises the corresponding upper die and lower die that arrange; Described patrix comprises upper bolster, upper bolster upside is connected with mounting plate through upper cushion block, upper bolster upper surface is provided with knockout plate, between knockout plate and mounting plate, be provided with polyurethane spring, upper bolster downside is provided with upper padding plate, upper padding plate downside is connected with train wheel bridge, and train wheel bridge below is connected with baffle plate through contour screw movable up and down, and baffle plate downside is fixedly connected with stripper plate; Knockout plate downside is provided with knockout rod, conflicts at knockout plate downside in knockout rod upper end, conflicts at baffle plate upside in knockout rod lower end; Described counterdie comprises die shoe, and die shoe downside is connected with bottom plate through lower cushion block, is provided with lower bolster on die shoe, and lower bolster upside is provided with lower bolster, and die shoe is provided with jigger pin, and jigger pin lower end is provided with liftout spring, and stretch out outside die shoe jigger pin upper end; Lower bolster is provided with the shallow recessing, shallow drawing punch that protrudes from lower bolster surface, on described stripper plate and lower bolster, correspondence is provided with multiple stations, two stations that are positioned at front end in patrix respectively correspondence are provided with otch drift, otch drift upper end is fixed on train wheel bridge, and otch drift lower end extend in the bore of the punch that runs through up and down baffle plate and stripper plate; Correspondingly with otch drift on lower bolster be provided with lower cutting edge, the unit drift that the corresponding otch drift of each station in two stations of described front end is arranged by some spacer segments on the width of mould forms, two the corresponding unit of station drifts of described front end are crisscross arranged and on the width of mould, cover the shallow recessing, shallow drawing region of material strip, described shallow recessing, shallow drawing punch periphery is provided with binder floating block, described binder floating block downside is provided with binder spring, and described progressive die is applicable to steel material strip width and is less than 80mm.

When the present invention works, continuous material strip enters mould by step-by-step system from the front end of mould, process step by step, until in the discharging of the rear end of mould, every stepping once, upper die and lower die matched moulds once, correspondingly each station work of mould once, finishing drawing, punching, shaping, the work such as cut-out, on the first two station, material strip is cut a seam by otch drift, because unit drift is crisscross arranged and covers the shallow recessing, shallow drawing region of material strip on the width of mould, therefore, through after two stations die-cut, the seam being cut open on material strip is continuous, like this, add man-hour at shallow recessing, shallow drawing subsequently, the both sides of drawing position can shrink distortion, but, because material strip has been cut open a seam, therefore, its distortion can be on not affecting the normal process of other stations, Just because of this, progressive die of the present invention can carry out shallow recessing, shallow drawing processing smoothly on large-sized sheet workpiece, simultaneously, can ensure overall machining accuracy.Compared with prior art, beneficial effect of the present invention is that it can carry the significantly production efficiency of high large scale shallow recessing, shallow drawing sheet metal component, the rate of reducing the number of rejects and seconds and single products production cost.

For further ensureing when the shallow recessing, shallow drawing, in the material strip difficult local distortion of shallow recessing, shallow drawing Working position, described shallow recessing, shallow drawing punch periphery is provided with binder floating block, and described binder floating block downside is provided with binder spring.In the time of shallow recessing, shallow drawing, first binder floating block pushes down material strip periphery, and then carries out shallow recessing, shallow drawing, can reduce the distortion of material strip, improves the precision of product.

For ease of cut out otch on material strip, the cutting edge inclination angle of described otch drift is 40 °.

As the measure that improves machining accuracy, on described counterdie, be provided with dual-purpose pin by step distance correspondence, dual-purpose pin downside correspondence is provided with spring mechanism, and dual-purpose pin is corresponding with the position of positioning hole on material strip.Dual-purpose pin has the effect of two aspects, can insert in the locating hole on material strip by stepping on the one hand, to material strip location, ensures machining accuracy, on the other hand, and can be by mould jack-up, to facilitate mould to carry out step motion.

For ensureing stripper plate guiding precisely, described train wheel bridge downside is fixed with inner guiding post perpendicular to train wheel bridge, and inner guiding post downside is through baffle plate and stripper plate setting, be provided with pilot hole corresponding to inner guiding post on lower bolster.Inner guiding post can move up and down guide effect is provided to stripper plate, makes its motion precisely.

Accurate for ensureing upper die and lower die matched moulds position, on described upper bolster, be fixed with outer ball guide pillar, on described die shoe, be fixed with the outer bush corresponding with outer ball guide pillar, in the time of upper die and lower die matched moulds, outer ball guide pillar coordinates in insertion outer bush.

For further ensureing machining accuracy, a rear station of described shallow recessing, shallow drawing punch is provided with shaping terrace die.After shallow recessing, shallow drawing, to the timely shaping of workpiece, can ensure that the precision of following process is high.

Brief description of the drawings

Fig. 1 is structural representation of the present invention.

Fig. 2 be A of the present invention to partial structurtes schematic diagram.

Structural representation when Fig. 3 is matched moulds of the present invention.

Wherein, 1 polyurethane spring, 2 shallow recessing, shallow drawing punch, 3 knockout rods, 4 knockout plates, cushion block on 5,6 mounting plates, 7 inner guiding posts, 8 outer ball guide pillars, 9 outer bush, 10 pilot holes, 11 contour screws, 12 material strips, 13 shaping terrace dies, 14 binder floating blocks, 15 binder springs, 16 times cutting edges, 17 jigger pins, 18 bottom plates, 19 lower cushion blocks, 20 die shoes, 21 lower bolsters, 22 lower bolsters, 23 dual-purpose pins, 24 stripper plates, 25 otch drifts, 25a unit drift, 26 baffle plates, 27 train wheel bridges, 28 upper padding plates, 29 upper bolsters.

Detailed description of the invention

As illustrated in fig. 1 and 2, be progressive die for big-size shallow-drawing sheet metal component, comprise the corresponding upper die and lower die that arrange; Described patrix comprises upper bolster 29, upper bolster 29 upsides are connected with mounting plate 6 through upper cushion block 5, upper bolster 29 upper surfaces are provided with knockout plate 4, between knockout plate 4 and mounting plate 6, be provided with polyurethane spring 1, upper bolster 29 downsides are provided with upper padding plate 28, upper padding plate 28 downsides are connected with train wheel bridge 27, and train wheel bridge 27 belows are connected with baffle plate 26 through contour screw 11 movable up and down, and baffle plate 26 downsides are fixedly connected with stripper plate 24; Knockout plate 4 downsides are provided with knockout rod 3, conflict at knockout plate 4 downsides in knockout rod 3 upper ends, conflict at baffle plate 26 upsides in knockout rod 3 lower ends; Described counterdie comprises die shoe 20, die shoe 20 downsides are connected with bottom plate 18 through lower cushion block 19, on die shoe 20, be provided with lower bolster 21, lower bolster 21 upsides are provided with lower bolster 22, die shoe 20 is provided with jigger pin 17, jigger pin 17 lower ends are provided with liftout spring, and stretch out outside die shoe 20 jigger pin 17 upper ends; Lower bolster 22 is provided with the shallow recessing, shallow drawing punch 2 that protrudes from lower bolster 22 surfaces, and shallow recessing, shallow drawing punch 2 peripheries are provided with binder floating block 14, and described binder floating block 14 downsides are provided with binder spring 15; A rear station of shallow recessing, shallow drawing punch 2 is provided with shaping terrace die 13; On stripper plate 24 and lower bolster 22, correspondence is provided with multiple stations, two stations that are positioned at front end in patrix respectively correspondence are provided with otch drift 25, otch drift 25 upper ends are fixed on train wheel bridge 27, and otch drift 25 lower ends extend in the bore of the punch that runs through up and down baffle plate 26 and stripper plate 24; The cutting edge inclination angle of otch drift 25 is 40 °; Correspondingly with otch drift 25 on lower bolster 22 be provided with lower cutting edge 16, the unit drift 25a that the corresponding otch drift 25 of each station in two stations of described front end is arranged by some spacer segments on the width of mould forms, and two the corresponding unit of station drift 25a of above-mentioned front end are crisscross arranged and on the width of mould, cover the shallow recessing, shallow drawing region of material strip.On counterdie, be provided with dual-purpose pin 23 by step distance correspondence, dual-purpose pin 23 downside correspondences are provided with spring mechanism, and dual-purpose pin 23 is corresponding with the position of positioning hole on material strip 12.Train wheel bridge 27 downsides are fixed with inner guiding post 7 perpendicular to train wheel bridge 27, and inner guiding post 7 downsides arrange through baffle plate 26 and stripper plate 24, be provided with pilot hole 10 corresponding to inner guiding post 7 on lower bolster 22.On upper bolster 29, be fixed with outer ball guide pillar 8, be fixed with the outer bush 9 corresponding with outer ball guide pillar 8 on die shoe 20, in the time of upper die and lower die matched moulds, outer ball guide pillar 8 coordinates in insertion outer bush 9.

The course of work of the present invention is done as follows: under the pressure of slider of punch, part of the upper die moves down, and first inner guiding post 7, outer ball guide pillar 8 enter in lower bolster 22 and outer bush 9, lead; Patrix continues to move down, and stripper plate 24 is first pushed down material strip 12 with binder floating block 14; Along with patrix continue move down, drawing punch and stripper plate 24 start to carry out material strip 12 is carried out to drawing; Then along with patrix moves down again, be fixed on otch drift 25 in train wheel bridge 27 and start descendingly, act synergistically with the lower cutting edge 16 on lower bolster 22, on material strip 12, form the otch being interrupted, complete otch work, until train wheel bridge 27 touch baffle plate 26, patrix moves down end.State when its matched moulds as shown in Figure 3.Subsequently, start uply under the effect of slider of punch, first train wheel bridge 27 separates and moves with baffle plate 26, and otch drift 25, with moving on train wheel bridge 27, departs from and exits material strip 12 and enter stripper plate 24 inside.Along with the continuation of patrix is up, stripper plate 24 separates with lower bolster 22, and material strip 12 separates with stripper plate 24, lower bolster 22 under the effect of counterdie jigger pin 17, dual-purpose pin 23, binder floating block 14; So far complete punching stroke one time.Material strip 12 stepwise operations subsequently, a mobile stepping position, enters next station.The above-mentioned course of work one by one station is carried out once, and the otch being interrupted on material strip 12 is linked to be a line, and afterwards, then while carrying out shallow recessing, shallow drawing, the distortion of material strip 12 parts can not have influence on the normal work of other stations.

The present invention, by practice, verifiedly can effectively ensure element precision, enhances productivity, and reduces single part production cost, strengthens the price competitiveness in market.Progressive die of the present invention is applicable to steel material strip width and is less than the large scale progressive die that 80mm, thickness are less than (or equaling) 1.2mm, contain shallow recessing, shallow drawing.Because progressive die size of the present invention is larger, template can adopt three plate amalgamations.

Advantage of the present invention is: (1) two stations before progressive die arrange otch station, makes material strip ensure material strip feeding step pitch precision at shallow recessing, shallow drawing station; (2) at shallow recessing, shallow drawing station, binder floating block is set, makes material strip in the time of shallow recessing, shallow drawing, first push down material strip, ensure that material strip is stressed evenly, steady, shrink balance; (3) owing to being provided with otch station and binder floating block, ensured material strip feeding stepping accuracy, the precision of the follow-up station of progressive die is guaranteed; (4) the present invention has replaced original many cover single die tools with progressive die, and simple in structure, efficiency is high, and element precision is good, greatly reduces production cost.

The present invention is not limited to above-described embodiment; on the basis of technical scheme disclosed by the invention; those skilled in the art is according to disclosed technology contents; do not need performing creative labour just can make some replacements and distortion to some technical characterictics wherein, these replacements and distortion are all in protection scope of the present invention.

Claims (6)

1. an inside liquid crystal television progressive die for big-size shallow-drawing sheet metal component, comprises the corresponding upper die and lower die that arrange; Described patrix comprises upper bolster, upper bolster upside is connected with mounting plate through upper cushion block, upper bolster upper surface is provided with knockout plate, between knockout plate and mounting plate, be provided with polyurethane spring, upper bolster downside is provided with upper padding plate, upper padding plate downside is connected with train wheel bridge, and train wheel bridge below is connected with baffle plate through contour screw movable up and down, and baffle plate downside is fixedly connected with stripper plate; Knockout plate downside is provided with knockout rod, conflicts at knockout plate downside in knockout rod upper end, conflicts at baffle plate upside in knockout rod lower end; Described counterdie comprises die shoe, and die shoe downside is connected with bottom plate through lower cushion block, is provided with lower bolster on die shoe, and lower bolster upside is provided with lower bolster, and die shoe is provided with jigger pin, and jigger pin lower end is provided with liftout spring, and stretch out outside die shoe jigger pin upper end; Lower bolster is provided with the shallow recessing, shallow drawing punch that protrudes from lower bolster surface, it is characterized in that: on described stripper plate and lower bolster, correspondence is provided with multiple stations, two stations that are positioned at front end in patrix respectively correspondence are provided with otch drift, otch drift upper end is fixed on train wheel bridge, and otch drift lower end extend in the bore of the punch that runs through up and down baffle plate and stripper plate; Correspondingly with otch drift on lower bolster be provided with lower cutting edge, the unit drift that the corresponding otch drift of each station in two stations of described front end is arranged by some spacer segments on the width of mould forms, and two the corresponding unit of station drifts of described front end are crisscross arranged and on the width of mould, cover the shallow recessing, shallow drawing region of material strip; Described shallow recessing, shallow drawing punch periphery is provided with binder floating block, and described binder floating block downside is provided with binder spring, and described progressive die is applicable to steel material strip width and is less than 80mm.
2. inside liquid crystal television progressive die for big-size shallow-drawing sheet metal component according to claim 1, is characterized in that: the cutting edge inclination angle of described otch drift is 40 °.
3. inside liquid crystal television progressive die for big-size shallow-drawing sheet metal component according to claim 1, it is characterized in that: on described counterdie, be provided with dual-purpose pin by step distance correspondence, dual-purpose pin downside correspondence is provided with spring mechanism, and dual-purpose pin is corresponding with the position of positioning hole on material strip.
4. inside liquid crystal television progressive die for big-size shallow-drawing sheet metal component according to claim 1, it is characterized in that: described train wheel bridge downside is fixed with inner guiding post perpendicular to train wheel bridge, inner guiding post downside is through baffle plate and stripper plate setting, be provided with pilot hole corresponding to inner guiding post on lower bolster.
5. inside liquid crystal television progressive die for big-size shallow-drawing sheet metal component according to claim 1, it is characterized in that: on described upper bolster, be fixed with outer ball guide pillar, on described die shoe, be fixed with the outer bush corresponding with outer ball guide pillar, in the time of upper die and lower die matched moulds, outer ball guide pillar coordinates in insertion outer bush.
6. inside liquid crystal television progressive die for big-size shallow-drawing sheet metal component according to claim 1, is characterized in that: a rear station of described shallow recessing, shallow drawing punch is provided with shaping terrace die.
CN201110304705.9A 2011-10-10 2011-10-10 Large-size shallow-drawing stamping part progressive die CN102389924B (en)

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CN102389924B true CN102389924B (en) 2014-11-05

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CN102672757A (en) * 2012-05-10 2012-09-19 苏州市飞莱克斯电路电子有限公司 Die frame structure of punching die for punching flexible circuit board
CN102672759A (en) * 2012-05-10 2012-09-19 苏州市飞莱克斯电路电子有限公司 Mould frame structure of punching mould for punching flexible circuit board
CN102814411A (en) * 2012-09-12 2012-12-12 昆山嘉华电子有限公司 Punching die
CN103433382A (en) * 2013-08-14 2013-12-11 芜湖市续元工贸有限公司 Lower die plate of terminal progressive die
CN103920816A (en) * 2014-04-28 2014-07-16 滁州品之达电器科技有限公司 Multi-station high-precision rapid continuous die for molded case circuit breaker and automatic production technology thereof
CN104117574B (en) * 2014-07-28 2017-04-12 无锡美润汽车部件有限公司 Clutch hub die

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CN201308941Y (en) * 2008-10-23 2009-09-16 王祥 Continuous strip cutting and molding device
CN101716628A (en) * 2009-11-20 2010-06-02 无锡曙光模具有限公司 Cascading continuous stamping die used for manufacturing fixed panel of automobile door hinge
EP2335841A1 (en) * 2009-12-17 2011-06-22 Feintool Intellectual Property AG Method for producing bent elements and tool for same
CN101954427A (en) * 2010-06-17 2011-01-26 无锡曙光模具有限公司 Method for processing upper cover of air conditioner temperature controller and special processing mould thereof
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