CN204182800U - A kind of compound punching structure for punch level progressive die - Google Patents

A kind of compound punching structure for punch level progressive die Download PDF

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Publication number
CN204182800U
CN204182800U CN201420673331.7U CN201420673331U CN204182800U CN 204182800 U CN204182800 U CN 204182800U CN 201420673331 U CN201420673331 U CN 201420673331U CN 204182800 U CN204182800 U CN 204182800U
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CN
China
Prior art keywords
die
spring
punching
blanking
bolster
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Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Expired - Fee Related
Application number
CN201420673331.7U
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Chinese (zh)
Inventor
成虹
李学锋
胡志华
江秉华
王卫生
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
CHONGQING PINGWEI AUTO MOULD Co Ltd
Chengdu Technological University CDTU
Chengdu Univeristy of Technology
Original Assignee
CHONGQING PINGWEI AUTO MOULD Co Ltd
Chengdu Technological University CDTU
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Application filed by CHONGQING PINGWEI AUTO MOULD Co Ltd, Chengdu Technological University CDTU filed Critical CHONGQING PINGWEI AUTO MOULD Co Ltd
Priority to CN201420673331.7U priority Critical patent/CN204182800U/en
Application granted granted Critical
Publication of CN204182800U publication Critical patent/CN204182800U/en
Expired - Fee Related legal-status Critical Current
Anticipated expiration legal-status Critical

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Abstract

The utility model relates to Sheet Metal Forming Technology, particularly a kind of compound punching structure for punch level progressive die, it comprises: upper mould fixed plate, it is fixed on the bottom of upper bolster, elastic stripper is connected with by the first spring below it, be provided with blanking bending punch-die in the middle part of upper mould fixed plate and elastic stripper, blanking bending punch-die internal engagement has patrix binder block, and patrix binder block passes through the second spring fitting bottom upper bolster; Punching and blanking die, it is fixed on die shoe, and punching and blanking die inside is provided with ejector block, and ejector block inside is provided with active bending punch, and it is by the 3rd spring fitting on die shoe, and ejector block passes through the 4th spring fitting on die shoe; The thrust of the first spring is greater than the top power of third and fourth spring, is provided with the depression bar that can press down ejector block bottom elastic stripper; Object is to provide a kind of in a punching press station, realizes binder, stamping-out, bending, the compound punching structure for punch level progressive die of compound punching process released.

Description

A kind of compound punching structure for punch level progressive die
Technical field
The utility model relates to Sheet Metal Forming Technology, particularly a kind of compound punching structure for punch level progressive die.
Background technology
In Sheet Metal Forming Technology, adopt the process of progressive stamping to be realize high speed, efficient, high-quality punching production mode, the mould that progressive stamping technique adopts is multi-station progressive die.In multi-station progressive die Design of Dies, for ensureing the intensity of stamping parts quality, mould and stamping reliability, generally only complete the stamping procedure of single character at each station.This processing arrangement method, for the part position that some have dimension relationship to associate with precision, is difficult to the requirement meeting stamping quality sometimes, maybe must lean against in Design of Dies the requirement designing some special structures and ensure the quality of products.During station number more punching presses of mould, its accumulated error is also larger.Especially for the punching production of the plates of automobile stamping parts of some large-sizes, increasing the size of a station with regard to making the size of mould increase a feeding step pitch, increasing the manufacturing cost of mould the most at last and selecting the press of larger bed dimension.In progressive die, design multi-procedure, complete stamping procedure of different nature simultaneously, the quality of stamping parts, production efficiency can be improved, the size of mould can be reduced simultaneously, reduce the cost of mould.
Utility model content
For prior art Problems existing, goal of the invention of the present utility model is to provide a kind of in a punching press station, realizes binder, stamping-out, bending, the compound punching structure for punch level progressive die of compound punching process released.
To achieve these goals, the technical solution adopted in the utility model is:
A kind of compound punching structure for punch level progressive die, it comprises die shoe, and the upper bolster corresponding with it, coordinates when upper bolster can move up and down relative to die shoe and move down into die shoe top with die shoe, be provided with compound punching device between upper bolster and die shoe, it comprises:
Upper mould fixed plate, it is fixed on the bottom of upper bolster, elastic stripper is connected with by the first spring below it, the first through hole is provided with in the middle part of upper mould fixed plate and elastic stripper, its internal engagement has blanking bending punch-die, blanking bending punch-die internal engagement has patrix binder block, described blanking bending punch-die is fixedly installed in bottom upper bolster, described patrix binder block by the second spring fitting bottom upper bolster, co-altitude bottom the bottommost of described blanking bending punch-die and patrix binder block, elastic stripper under free state;
Punching and blanking die, it is fixed on described die shoe, punching and blanking die inside is provided with the second through hole, its internal engagement has ejector block, ejector block inside is provided with active bending punch, and it is by the 3rd spring fitting on die shoe, and described ejector block passes through the 4th spring fitting on die shoe, can move in the fixing upper-lower height in punching and blanking die inside, the top co-altitude of described punching and blanking die, ejector block, active bending punch under free state;
The thrust of described first spring is greater than the 3rd, the top power of four springs, the thrust of the second spring is greater than the top power of the 3rd spring, be provided with bottom described elastic stripper and can press down ejector block, make the depression bar that ejector block moves down in punching and blanking die inside, described blanking bending punch-die can stretch in punching and blanking die downwards, the mobile route of ejector block moves, described first spring, second spring, 3rd spring, the elastic modelling quantity of the 4th spring arranges satisfied: in upper bolster folding process, ejector block is moved downward to die shoe top, the bottommost of blanking bending punch-die and patrix binder block in this process, co-altitude bottom elastic stripper, punching and blanking die, the top co-altitude of active bending punch, upper bolster continues in folding process, punching and blanking die and elastic stripper are fitted, first spring starts compression, blanking bending punch-die and patrix binder block continue synchronously to press down, after active bending punch moves to die shoe top, second spring starts compression.
This multi-procedure devises the mechanism that steps down in advance when the downward punching press of mould.Step down mechanism by be arranged on the elastic stripper of patrix, stripper spring (the first spring), depression bar and be arranged on the ejector block of die shoe, ejector block spring (the 4th spring) forms.This mechanism is when mould is descending, power is pushed up because spring (the first spring) pressure that elastic stripper is installed is greater than the spring (the 4th spring) installed below ejector block, first ejector block presses to and die shoe top contact by depression bar, the space that ejector block is descending, is mold work cutting edge and carries out stamping-out, bends, is made into required space.When ejector block is descending put in place after, upper and lower die holder patrix binder block, active bending punch clamping and positioning material strip under spring force, mould continues descending, completes stamping-out, bending shaping compound working procedure.After shaping completes, mould backhaul, mechanism's back resetting, the bool after shaping and material strip are released die nibs by ejector block now in mechanism under spring force, the extreme lower position of crooked position higher than the feeding face 1.5 ~ 3mm of mould so that the reliable feeding of pay-off.After feeding puts in place, carry out next circulation, achieve in a punching press station, to complete binder, stamping-out, bending, the compound punching process released, and two kinds and above stamping procedure can be completed at the same station of progressive die, and the station number of progressive die can be reduced, reduce the size of mould and the accumulated error of continuous progressive stamping, ensure stamping parts quality.
As preferred version of the present utility model, described upper mould fixed plate is arranged on bottom upper bolster by upper die plate, and upper die plate has cushioning effect, increases the life-span of this punching structure.
As preferred version of the present utility model, described punching and blanking die is arranged on die shoe top by counterdie backing plate, and counterdie backing plate has cushioning effect, increases the life-span of this punching structure.
As preferred version of the present utility model, described elastic stripper top is fixed with spring-loaded stripping backboard, its top is connected with bottom upper mould fixed plate by the first spring, depression bar is arranged on bottom spring-loaded stripping backboard, elastic stripper has the through hole passed for depression bar, plays cushioning effect, increase the life-span of this punching structure, spring junction is is easily worn and torn, is damaged simultaneously, and this structure is convenient for changing, and reduces the cost of replacing simultaneously.
As preferred version of the present utility model, be provided with the guide pillar driving upper bolster movement between surrounding and die shoe top correspondence position bottom described upper bolster, guide pillar outer setting has guide pin bushing, for punching press provides power.
As preferred version of the present utility model, described second spring fitting place is positioned at upper bolster inside and is communicated with upper bolster top, and the space between the second spring and upper bolster outside is provided with the first plug screw, facilitates the maintain and replace of part, improve the efficiency of maintenance, reduce maintenance difficulty.
As preferred version of the present utility model, described 3rd spring fitting place is positioned at die shoe inside and is communicated with bottom die shoe, and the space between the 3rd spring and die shoe outside is provided with the second plug screw, facilitates the maintain and replace of part, improve the efficiency of maintenance, reduce maintenance difficulty.
As preferred version of the present utility model, described patrix binder block is located through the second spring center by the first locating shaft, binder block pushing block is provided with between patrix binder block top and the second spring bottom, itself and upper die plate internal engagement, this structure ensures that the positioning precision of patrix binder block, ensure that the quality of stamped workpieces.
As preferred version of the present utility model, described active bending punch is located through the 3rd spring center by the second locating shaft, bending punch pushing block is provided with between active bending male bottom and the 3rd spring top, itself and counterdie backing plate internal engagement, this structure ensures that the positioning precision of active bending punch, ensure that the quality of stamped workpieces.
As preferred version of the present utility model, described compound punching device punching part formed thereby is the part that the right and left needs bending forming, for the quasi-representative part (as Fig. 9) that this utility model is applied, usually the forming arrangements designed in progressive die is with two different station shapings, front station completes spares bend limit to cut with being separated of material strip, complete bending at the second station again, the utility model design be complete on a station simultaneously both sides and material strip being separated and bending.
The beneficial effects of the utility model are:
Two kinds and above stamping procedure can be completed at the same station of progressive die, and the station number of progressive die can be reduced, reduce the size of mould and the accumulated error of continuous progressive stamping, ensure stamping parts quality.
Accompanying drawing explanation
Fig. 1 is original state structural representation of the present utility model.
Fig. 2 is working state structure schematic diagram of the present utility model.
Fig. 3 is punching course first schematic diagram of the present utility model.
Fig. 4 is punching course second schematic diagram of the present utility model.
Fig. 5 is punching course of the present utility model 3rd schematic diagram.
Fig. 6 is punching course of the present utility model 4th schematic diagram.
Fig. 7 is punching course of the present utility model 5th schematic diagram.
Fig. 8 is punching course of the present utility model 6th schematic diagram.
Fig. 9 is the cross-sectional view of the utility model institute processing parts.
Mark in figure: 1-first plug screw, 2-second spring, 3-upper die plate, 4-upper bolster, 5-guide pin bushing, 6-blanking bending punch-die, 7-upper mould fixed plate, 8-elastic stripper backboard, 9-patrix binder block, 10-elastic stripper, 11-depression bar, 12-ejector block, 13-the 4th spring, 14-active bending punch, 15-die shoe, 16-second plug screw, 17-the 3rd spring, 18-bends punch pushing block, 19-counterdie backing plate, 20-punching and blanking die, 21-guide pillar, 22-material strip, 23-binder block pushing block, 24-first spring.
Detailed description of the invention
Below in conjunction with embodiment and detailed description of the invention, the utility model is described in further detail.But this should be interpreted as that the scope of the above-mentioned theme of the utility model is only limitted to following embodiment, all technology realized based on summary of the invention of the present utility model all belong to scope of the present utility model.
embodiment 1
As Fig. 1-9, a kind of compound punching structure for punch level progressive die, it comprises die shoe 15, and the upper bolster 4 corresponding with it, upper bolster 4 coordinates with die shoe 15 when can move up and down relative to die shoe 15 and move down into die shoe 15 top, be provided with compound punching device between upper bolster 4 and die shoe 15, it comprises:
Upper mould fixed plate 7, it is fixed on the bottom of upper bolster 4, elastic stripper 10 is connected with by the first spring 24 below it, the first through hole is provided with in the middle part of upper mould fixed plate 7 and elastic stripper 10, its internal engagement has blanking bending punch-die 6, blanking bending punch-die 6 internal engagement has patrix binder block 9, described blanking bending punch-die 6 is fixedly installed in bottom upper bolster 4, described patrix binder block 9 is installed on bottom upper bolster 4 by the second spring 2, the bottommost of described blanking bending punch-die 6 and patrix binder block 9 under free state, co-altitude bottom elastic stripper 10,
Punching and blanking die 20, it is fixed on described die shoe 15, punching and blanking die 20 inside is provided with the second through hole, its internal engagement has ejector block 12, ejector block 12 inside is provided with active bending punch 14, and it is installed on die shoe 15 by the 3rd spring 17, and described ejector block 12 is installed on die shoe 15 by the 4th spring 13, can move in the fixing upper-lower height in punching and blanking die 20 inside, the top co-altitude of described punching and blanking die 20, ejector block 12, active bending punch 14 under free state;
The thrust of described first spring 24 is greater than the top power of third and fourth spring, the thrust of the second spring 2 is greater than the top power of the 3rd spring 17, be provided with bottom described elastic stripper 10 and can press down ejector block 12, make the depression bar 11 that ejector block 12 moves down in punching and blanking die 20 inside, described blanking bending punch-die 6 can stretch into downwards in punching and blanking die 20, and the mobile route of ejector block 12 moves.
In the present embodiment, described upper mould fixed plate 7 is arranged on bottom upper bolster 4 by upper die plate 3, and described punching and blanking die 20 is arranged on die shoe 15 top by counterdie backing plate 19.
Described elastic stripper 10 top is fixed with spring-loaded stripping backboard, and its top is connected with bottom upper mould fixed plate 7 by the first spring 24, and depression bar 11 is arranged on bottom spring-loaded stripping backboard, elastic stripper 10 has the through hole passed for depression bar 11; Be provided with the guide pillar 21 driving upper bolster 4 movement between surrounding and die shoe 15 top correspondence position bottom described upper bolster 4, guide pillar 21 outer setting has guide pin bushing 5.
In the present embodiment, described second spring 2 installation place is positioned at upper bolster 4 inside and is communicated with upper bolster 4 top, space between second spring 2 and upper bolster 4 outside is provided with the first plug screw 1, described 3rd spring 17 installation place is positioned at die shoe 15 inside and is communicated with bottom die shoe 15, and the space between the 3rd spring 17 and die shoe 15 outside is provided with the second plug screw 16.
Described patrix binder block 9 passes the second spring 2 centralized positioning by the first locating shaft, binder block pushing block 23 is provided with between bottom patrix binder block 9 top and the second spring 2, itself and upper die plate 3 internal engagement, described active bending punch 14 passes the 3rd spring 17 centralized positioning by the second locating shaft, bending punch pushing block 18 is provided with, itself and counterdie backing plate 19 internal engagement bottom active bending punch 14 and between the 3rd spring 17 top.
The course of work:
Fig. 1 is original state, holds up the feeding plane at material strip 22 under the effect that now material strip 22 is followed closely at floating retainer.Now, ejector block 12 is in initial position under the effect of ejector block 12 spring (the 4th spring 13); Patrix binder block 9 and active bending punch 14 are also in initial position under the effect of respective Compress Spring (the second spring 2, the 3rd spring 17); Depression bar 11 pairs of ejector blocks 12 also do not act on, and whole mechanism is in original state, and the cutting edge of mould does not enter operating position yet.
Along with moving downward of forcing press, the thrust designed due to the stripper spring (the first spring 24) acting on elastic stripper 10 is greater than the top power of ejector block 12 spring (the 4th spring 13) of ejector block 12, the depression bar 11 be arranged on elastic stripper 10 promotes ejector block 12 and moves downward in the process that mould is descending, push piece spring (the 4th spring 13) is compressed, until plane contact on ejector block 12 lower plane and counterdie backing plate 19, formingspace required when ensure that multi-procedure is shaped.Patrix continues to move downward, and stripper spring (the first spring 24), bending punch spring (the 3rd spring 17) are compressed.Now, elastic stripper 10 and punching and blanking die 20, patrix binder block 9 and active bending punch 14 compress material.Mould continues descending, realizes being separated and flexural deformation the material stamping-out of shaping, as shown in Figure 2.
When press backhaul, mould die sinking, upper bolster 4 rises, and the product after bending, under the effect of ejector block 12 spring (the 4th spring 13), is released, released height higher than active bending punch 14(1.5 ~ 3 by ejector block 12 from active bending punch 14) mm.
Process more specifically, as shown in Fig. 3-8, Fig. 3, mould belongs to die opening state (identical with Fig. 1), and compound punching station is in original state.Along with moving downward of upper bolster 4, pressure due to stripper spring (the first spring 24) is greater than the thrust in ejector block 12 spring (the 4th), when upper bolster 4 is descending, the depression bar 11 be arranged on elastic stripper backboard 8 promotes ejector block 12 and moves downward (the 4th spring 13 is compressed)., contact with counterdie backing plate 19 upper surface bottom ejector block 12, the distance that ejector block 12 is descending, the stamping-out abdicated for multi-procedure exactly, bending, the formingspace that becomes shaping this moment.Mould continues descending, and the first spring 24 is compressed, and elastic stripper 10 and punching and blanking die 20 compress material strip 22.Meanwhile, patrix binder block 9 and active bending punch 14 clamp material strip 22, and blanking bending punch-die 6 and punching and blanking die 20 prepare die-cut material, as shown in Figure 4.
It is descending that Fig. 5 represents that mould continues, and multi-procedure with under the acting in conjunction of punching and blanking die 20, achieves the stamping-out separation circuit of material strip 22 at blanking bending punch-die 6.Patrix continues descending, and blanking bending punch-die 6, with under the acting in conjunction of active bending punch 14, realizes the flexural deformation of multi-procedure, as shown in Figure 6.Because product has the requirement of higher flatness, mould continues the lower dead center being depressed into punch press formation, realizes shaping, to ensure the required precision of product, as shown in Fig. 7 figure.
After Figure 8 shows that punching press completes, patrix backhaul.Due to mould die sinking, the pressure of the spring (the first spring 24) of elastic stripper 10 is released, the pressure of depression bar 11 pairs of ejector blocks 12 reduces gradually, finally depart from ejector block 12, product is ejected punching and blanking die 20 by ejector block 12 under the effect of push piece flat spring (the 4th spring 13), and ejector block 12 returns to original state.Now, feed mechanism feeding, after feeding terminates, starts next circulation.

Claims (10)

1. the compound punching structure for punch level progressive die, it comprises die shoe, and the upper bolster corresponding with it, coordinates when upper bolster can move up and down relative to die shoe and move down into die shoe top with die shoe, be provided with compound punching device between upper bolster and die shoe, it comprises:
Upper mould fixed plate, it is fixed on the bottom of upper bolster, elastic stripper is connected with by the first spring below it, the first through hole is provided with in the middle part of upper mould fixed plate and elastic stripper, its internal engagement has blanking bending punch-die, blanking bending punch-die internal engagement has patrix binder block, described blanking bending punch-die is fixedly installed in bottom upper bolster, described patrix binder block by the second spring fitting bottom upper bolster, co-altitude bottom the bottommost of described blanking bending punch-die and patrix binder block, elastic stripper under free state;
Punching and blanking die, it is fixed on described die shoe, punching and blanking die inside is provided with the second through hole, its internal engagement has ejector block, ejector block inside is provided with active bending punch, and it is by the 3rd spring fitting on die shoe, and described ejector block passes through the 4th spring fitting on die shoe, can move in the fixing upper-lower height in punching and blanking die inside, the top co-altitude of described punching and blanking die, ejector block, active bending punch under free state;
Be provided with bottom described elastic stripper and can press down ejector block, make the depression bar that ejector block moves down in punching and blanking die inside, described blanking bending punch-die can stretch in punching and blanking die downwards, the mobile route of ejector block moves, described first spring, second spring, 3rd spring, the elastic modelling quantity of the 4th spring arranges satisfied: in upper bolster folding process, ejector block is moved downward to die shoe top, the bottommost of blanking bending punch-die and patrix binder block in this process, co-altitude bottom elastic stripper, punching and blanking die, the top co-altitude of active bending punch, upper bolster continues in folding process, punching and blanking die and elastic stripper are fitted, first spring starts compression, blanking bending punch-die and patrix binder block continue synchronously to press down, after active bending punch moves to die shoe top, second spring starts compression.
2. a kind of compound punching structure for punch level progressive die according to claim 1, it is characterized in that, the thrust of described first spring is greater than the top power of third and fourth spring, the thrust of the second spring is greater than the top power of the 3rd spring, and described upper mould fixed plate is arranged on bottom upper bolster by upper die plate.
3. a kind of compound punching structure for punch level progressive die according to claim 1, it is characterized in that, described punching and blanking die is arranged on die shoe top by counterdie backing plate.
4. a kind of compound punching structure for punch level progressive die according to claim 1, it is characterized in that, described elastic stripper top is fixed with spring-loaded stripping backboard, its top is connected with bottom upper mould fixed plate by the first spring, depression bar is arranged on bottom spring-loaded stripping backboard, elastic stripper has the through hole passed for depression bar.
5. a kind of compound punching structure for punch level progressive die according to claim 1, it is characterized in that, be provided with the guide pillar driving upper bolster movement between surrounding and die shoe top correspondence position bottom described upper bolster, guide pillar outer setting has guide pin bushing.
6. a kind of compound punching structure for punch level progressive die according to claim 2, it is characterized in that, described second spring fitting place is positioned at upper bolster inside and is communicated with upper bolster top, and the space between the second spring and upper bolster outside is provided with the first plug screw.
7. a kind of compound punching structure for punch level progressive die according to claim 3, it is characterized in that, described 3rd spring fitting place is positioned at die shoe inside and is communicated with bottom die shoe, and the space between the 3rd spring and die shoe outside is provided with the second plug screw.
8. a kind of compound punching structure for punch level progressive die according to claim 6, it is characterized in that, described patrix binder block is located through the second spring center by the first locating shaft, binder block pushing block is provided with, itself and upper die plate internal engagement between patrix binder block top and the second spring bottom.
9. a kind of compound punching structure for punch level progressive die according to claim 7, it is characterized in that, described active bending punch is located through the 3rd spring center by the second locating shaft, bending punch pushing block is provided with, itself and counterdie backing plate internal engagement between active bending male bottom and the 3rd spring top.
10. a kind of compound punching structure for punch level progressive die according to claim 1, is characterized in that, described compound punching device punching part formed thereby is the part that the right and left needs bending forming.
CN201420673331.7U 2014-11-11 2014-11-11 A kind of compound punching structure for punch level progressive die Expired - Fee Related CN204182800U (en)

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Application Number Priority Date Filing Date Title
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Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN106111795A (en) * 2016-07-26 2016-11-16 滁州达世汽车配件有限公司 For processing the progressive die of automotive starter shell
CN107790542A (en) * 2016-08-30 2018-03-13 富鼎电子科技(嘉善)有限公司 Press forming die
CN109365643A (en) * 2018-11-15 2019-02-22 江西江铃底盘股份有限公司 A kind of composite die and combination process of Automobile drive rear axle shock absorber support

Cited By (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN106111795A (en) * 2016-07-26 2016-11-16 滁州达世汽车配件有限公司 For processing the progressive die of automotive starter shell
CN106111795B (en) * 2016-07-26 2017-11-28 滁州达世汽车配件有限公司 For processing the progressive die of automotive starter shell
CN107790542A (en) * 2016-08-30 2018-03-13 富鼎电子科技(嘉善)有限公司 Press forming die
CN107790542B (en) * 2016-08-30 2019-05-31 富鼎电子科技(嘉善)有限公司 Press forming die
CN109365643A (en) * 2018-11-15 2019-02-22 江西江铃底盘股份有限公司 A kind of composite die and combination process of Automobile drive rear axle shock absorber support
CN109365643B (en) * 2018-11-15 2020-10-09 江西江铃底盘股份有限公司 Bending and bending process for automobile drive rear axle shock absorber support

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