CN203459547U - Downward-bending forming die capable of controlling bending springback - Google Patents

Downward-bending forming die capable of controlling bending springback Download PDF

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Publication number
CN203459547U
CN203459547U CN201320613491.8U CN201320613491U CN203459547U CN 203459547 U CN203459547 U CN 203459547U CN 201320613491 U CN201320613491 U CN 201320613491U CN 203459547 U CN203459547 U CN 203459547U
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CN
China
Prior art keywords
forming
die
clamping plate
bolster
terrace die
Prior art date
Application number
CN201320613491.8U
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Chinese (zh)
Inventor
严昌贤
李文胜
刘立如
王可胜
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湖南博利达汽车零部件有限公司
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Priority to CN201320613491.8U priority Critical patent/CN203459547U/en
Application granted granted Critical
Publication of CN203459547U publication Critical patent/CN203459547U/en

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Abstract

The utility model relates to a punching die which belongs to high-end equipment and is used for machining automobile parts, in particular to a downward-bending forming die capable of controlling bending springback. The downward-bending forming die comprises an upper die holder, a plate clamping base, an upper forming male die, a stripper plate, a stripping insert, a lower forming female die, a lower base plate and a stripping device, wherein the upper end of the plate clamping base is connected with the upper die holder, the lower end of the plate clamping base is connected with the upper forming male die, the lower forming female die and the stripping device are arranged on the lower base plate, the stripping insert arranged on the stripper plate is located above the lower forming female die, the upper forming male die and the lower forming female die are provided with R corners respectively, and the upper forming male die is in clearance fit with the lower forming female die to form an R position extruding structure. The downward-bending forming die is easy and convenient to operate and high in efficiency, has high practicability and can be widely applied, the R position springback of a formed workpiece can be eliminated, the angle stability and the size stability of the product are ensured, the yield is improved, and the downward-bending forming die plays a role in guiding die manufacturing and design of workpiece products formed by thick plates.

Description

Control the downward bending shaping dies of bending springback
Technical field
The utility model relates to a kind of belonging in high-end equipment for the diel of processing automobile parts, more particularly, relates to a kind of downward bending shaping dies of controlling bending springback.
Background technology
The status rising of mould industry in national economy, mould is industrial fundamental technology equipment, in the products such as automobile, motor, electrical equipment, household electrical appliances and communication, 60%~80% parts are all to rely on mould molding, especially five metals thin material band muscle bending and forming product is widely used in IT communication electronics, appliance field and auto manufacturing, therefore, the height of die quality directly determines the height of product quality.
And at present; in punch process, because the design of bend punching die is unreasonable, band muscle bending and forming product often there will be deformation of products while being shaped in forming process; product shaping resilience occurs that forming dimension precision does not reach designing requirement greatly, and product quality less stable.Meanwhile, the complicated operation of existing bend punching die, manufacturing procedure is many, wastes time and energy, and its working (machining) efficiency is low.
Utility model content
The purpose of this utility model is to overcome above-mentioned defect of the prior art, and a kind of downward bending shaping dies of controlling bending springback is provided, and it is easy and simple to handle, and working (machining) efficiency is high, has guaranteed the quality of product processing.
For achieving the above object, the technical scheme that the utility model provides is as follows: a kind of downward bending shaping dies of controlling bending springback, it comprises upper bolster, clamping plate seat, upper forming terrace die, stripper plate, de-material mold insert, lower female die for forming, lower bolster and stripper, the upper end of described clamping plate seat connects described upper bolster, the lower end of described clamping plate seat connects described upper forming terrace die, described lower female die for forming and described stripper are installed in described lower bolster, the described de-material mold insert being installed on described stripper plate is positioned at described lower female die for forming top, described upper forming terrace die and described lower female die for forming are respectively arranged with R angle, described upper forming terrace die and described lower female die for forming matched in clearance form squeezes R bit architecture.
Furthermore, the lower end of described upper forming terrace die is provided with oblique angle, and the angle at described oblique angle is 10 °~15 °.
Furthermore, described stripper comprises ejection block, briquetting and nitrogen spring, described ejection block is positioned at the through hole that described lower female die for forming is offered, described nitrogen spring is installed in described ejection block below, and described briquetting is installed in a side of described ejection block and for limiting the lifting height of described ejection block.
Furthermore, the lower end of described clamping plate seat is equiped with wear-resistant block, and described lower bolster is equiped with lower wear-resistant block, and described lower wear-resistant block is positioned at the opposite of described lower female die for forming, and described upper wear-resistant block contacts cooperation with described lower wear-resistant block.
Furthermore, between the upper end of described upper forming terrace die and described clamping plate seat, be equiped with square positioning key, described positioning key coordinates location with the upper end that is opened in described upper forming terrace die with the keyway between described clamping plate seat.
Furthermore, between the side of described upper forming terrace die and described clamping plate seat, be equiped with hexagon socket head cap screw, on the side of described upper forming terrace die, for the screwed hole of installing mutually with described hexagon socket head cap screw, be set to blind screwed hole.
Furthermore, on described lower bolster, be equiped with for preventing that described stripper plate is because of the interior limited post of unbalance stress run-off the straight.
The beneficial effects of the utility model are: the utility model comprises upper bolster, clamping plate seat, upper forming terrace die, stripper plate, de-material mold insert, lower female die for forming, lower bolster, ejection block, briquetting and nitrogen spring, upper forming terrace die and lower female die for forming are respectively arranged with R angle, upper forming terrace die and lower female die for forming matched in clearance form squeezes R bit architecture, this structure can make the material attenuation of the R position of Forming Workpiece, change the stress-strain state of material, eliminated the R position resilience of Forming Workpiece, guarantee angle and the dimensionally stable of product, improved yields, simultaneously, it is easy and simple to handle, working (machining) efficiency is high.
Accompanying drawing explanation
Structural representation when Fig. 1 is the downward bending shaping dies die sinking of control bending springback described in the utility model;
Structural representation when Fig. 2 is the downward bending shaping dies mold closing of control bending springback described in the utility model;
Fig. 3 is the enlarged diagram of A part in Fig. 2;
Fig. 4 is the enlarged diagram of B part in Fig. 1.
Include in the drawings:
1---upper bolster, 2---clamping plate seat, 3---upper forming terrace die, 4---stripper plate, 5---de-material mold insert, 6---lower female die for forming, 7---lower bolster, 8---ejection block, 9---briquetting, 10---nitrogen spring, 11---upper wear-resistant block, 12---lower wear-resistant block, 13---positioning key, 14---hexagon socket head cap screw, 15---interior limited post, 16---Forming Workpiece.
Below in conjunction with drawings and Examples, the downward bending shaping dies of control bending springback described in the utility model is described further.
The specific embodiment
Be below the preferred example of the downward bending shaping dies of control bending springback described in the utility model, therefore do not limit protection domain of the present utility model.
Please refer to Fig. 1, Fig. 2 and Fig. 3, there is shown a kind of downward bending shaping dies of controlling bending springback, it comprises upper bolster 1, clamping plate seat 2, upper forming terrace die 3, stripper plate 4, de-material mold insert 5, lower female die for forming 6, lower bolster 7 and stripper, the upper end of clamping plate seat 2 connects upper bolster 1, the lower end of clamping plate seat 2 connects upper forming terrace die 3, lower female die for forming 6 and stripper are installed in lower bolster 7, the de-material mold insert 5 being installed on stripper plate 4 is positioned at lower female die for forming 6 tops, upper forming terrace die 3 is respectively arranged with R angle with lower female die for forming 6, upper forming terrace die 3 forms and squeezes R bit architecture with lower female die for forming 6 matched in clearance, this structure can make the material attenuation of the R position of Forming Workpiece 16, change the stress-strain state of material, eliminated the R position resilience of Forming Workpiece 16, guarantee angle and the dimensionally stable of product, improved yields.
In the present embodiment, the lower end of upper forming terrace die 3 is provided with oblique angle, the angle at oblique angle is 10 °~15 °, this oblique angle has guaranteed when mould is just shaped to be large gap preform, can reduce the frictional resistance on upper forming terrace die 3 and Forming Workpiece 16 surfaces, the surface smoothness of Forming Workpiece 16 is improved, do not scratch or scratch; That has reduced Forming Workpiece 16 draws material phenomenon simultaneously.
Particularly, stripper comprises ejection block 8, briquetting 9 and nitrogen spring 10, ejection block 8 is positioned at the through hole that lower female die for forming 6 is offered, and nitrogen spring 10 is installed in ejection block 8 belows, and briquetting 9 is installed in a side of ejection block 8 and for limiting the lifting height of ejection block 8.This stripper can be effectively, in time by the de-material of product, reduced because of spring force not or the de-material of product that causes of spring failure has some setbacks or the damage of product or the mould that cause not in time damage.
In the present embodiment, the lower end of clamping plate seat 2 is equiped with wear-resistant block 11, and lower bolster 7 is equiped with lower wear-resistant block 12, and lower wear-resistant block 12 is positioned at the opposite of lower female die for forming 6, and upper wear-resistant block 11 contacts cooperation with lower wear-resistant block 12.In installing, wear-resistant block 11 and lower wear-resistant block 12 both can carry out correcting to upper forming terrace die 3, can guarantee that again upper forming terrace die 3 is not offset under the effect of side force, and the gap that prevents from being shaped becomes ambassador's product size and do not reach designing requirement.
In the present embodiment, be equiped with square positioning key 13 between the upper end of upper forming terrace die 3 and clamping plate seat 2, positioning key 13 coordinates location with the upper end that is opened in upper forming terrace die 3 with the keyway between clamping plate seat 2.Positioning key 13 can make forming terrace die 3 accurately locate, and simultaneously can eliminate side force, and the working position that has guaranteed upper forming terrace die 3 does not have unnecessary fabrication hole affects product surface quality.In addition, between clamping plate seat 2 and upper bolster 1, also can adopt positioning key 13 and keyway to coordinate location.
In the present embodiment, between the side of upper forming terrace die 3 and clamping plate seat 2, be equiped with hexagon socket head cap screw 14, on the side of upper forming terrace die 3, for the screwed hole of installing mutually with hexagon socket head cap screw 14, be set to blind screwed hole, the through hole of avoiding attacking on the working face of the upper forming terrace die 3 after wearing affects product surface quality, causes product bad or scrap.
In the present embodiment, on lower bolster 7, be equiped with for preventing that stripper plate 4 is because of the interior limited post 15 of unbalance stress run-off the straight, thereby improve the guiding accuracy of mould and the service life of mould.
As shown in Figure 4, preferably, following female die for forming 6, de-material mold insert 5 etc. are all inlays mold insert and can be bumped into each limit chamfering of bottom surface being bumped into part, and being bumped into recessed frame needs the clear angle of gong, facilitates mold insert to install.
Operation principle of the present utility model is as follows:
Mould is descending, and de-material mold insert 5 contacts with Forming Workpiece 16 and ejection block 8 is pressed in the through hole of lower female die for forming 6 and is in same plane with the surface of lower female die for forming 6 under the effect of stripper plate 4; Mould continues descending, and upper wear-resistant block 11 contacts the upper forming terrace die 3 of guiding with lower wear-resistant block 12; Mould is descending again, upper forming terrace die 3 large gap preforms, then make Forming Workpiece 16 be shaped 90 °, finally by upper forming terrace die 3 and lower female die for forming 6 matched in clearance, form and squeeze R bit architecture by the R position extrusion molding of Forming Workpiece 16, eliminate shaping ess-strain, guaranteed angle and the dimensionally stable of product.
Mould is up, and upper forming terrace die 3 departs from Forming Workpiece 16, and then, upper wear-resistant block 11 departs from lower wear-resistant block 12, and stripper plate 4 departs from Forming Workpiece 16, and ejection block 8 ejects Forming Workpiece 16 under the active force of nitrogen spring 10.
In sum, of the present utility model easy and simple to handle, working (machining) efficiency is high, and the mould designing for manufacturing of slab drip molding product is had to directive function, has stronger practicality, can extensive use.
Above-described embodiment is preferably embodiment of the utility model; but embodiment of the present utility model is not restricted to the described embodiments; other any do not deviate from change, the modification done under Spirit Essence of the present utility model and principle, substitutes, combination, simplify; all should be equivalent substitute mode, within being included in protection domain of the present utility model.

Claims (7)

1. a downward bending shaping dies of controlling bending springback, it is characterized in that: comprise upper bolster (1), clamping plate seat (2), upper forming terrace die (3), stripper plate (4), de-material mold insert (5), lower female die for forming (6), lower bolster (7) and stripper, the upper end of described clamping plate seat (2) connects described upper bolster (1), the lower end of described clamping plate seat (2) connects described upper forming terrace die (3), described lower female die for forming (6) and described stripper are installed in described lower bolster (7), the described de-material mold insert (5) being installed on described stripper plate (4) is positioned at described lower female die for forming (6) top, described upper forming terrace die (3) is respectively arranged with R angle with described lower female die for forming (6), described upper forming terrace die (3) forms and squeezes R bit architecture with described lower female die for forming (6) matched in clearance.
2. the downward bending shaping dies of control bending springback according to claim 1, is characterized in that: the lower end of described upper forming terrace die (3) is provided with oblique angle, and the angle at described oblique angle is 10 °~15 °.
3. the downward bending shaping dies of control bending springback according to claim 1, it is characterized in that: described stripper comprises ejection block (8), briquetting (9) and nitrogen spring (10), described ejection block (8) is positioned at the through hole that described lower female die for forming (6) is offered, described nitrogen spring (10) is installed in described ejection block (8) below, and described briquetting (9) is installed in a side of described ejection block (8) and for limiting the lifting height of described ejection block (8).
4. the downward bending shaping dies of control bending springback according to claim 1, it is characterized in that: the lower end of described clamping plate seat (2) is equiped with wear-resistant block (11), described lower bolster (7) is equiped with lower wear-resistant block (12), described lower wear-resistant block (12) is positioned at the opposite of described lower female die for forming (6), and described upper wear-resistant block (11) contacts cooperation with described lower wear-resistant block (12).
5. the downward bending shaping dies of control bending springback according to claim 1, it is characterized in that: between the upper end of described upper forming terrace die (3) and described clamping plate seat (2), be equiped with square positioning key (13), described positioning key (13) coordinates location with the upper end that is opened in described upper forming terrace die (3) with the keyway between described clamping plate seat (2).
6. the downward bending shaping dies of control bending springback according to claim 1, it is characterized in that: between the side of described upper forming terrace die (3) and described clamping plate seat (2), be equiped with hexagon socket head cap screw (14), on the side of described upper forming terrace die (3), for the screwed hole of installing mutually with described hexagon socket head cap screw (14), be set to blind screwed hole.
7. the downward bending shaping dies of control bending springback according to claim 1, is characterized in that: on described lower bolster (7), be equiped with for preventing that described stripper plate (4) is because of the interior limited post (15) of unbalance stress run-off the straight.
CN201320613491.8U 2013-09-30 2013-09-30 Downward-bending forming die capable of controlling bending springback CN203459547U (en)

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Application Number Priority Date Filing Date Title
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Cited By (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN104890053A (en) * 2015-06-08 2015-09-09 无锡吉兴汽车声学部件科技有限公司 Guiding mechanism of punch die of acoustic components of automobiles
CN104942144A (en) * 2015-06-16 2015-09-30 沧州隆泰迪管道科技有限公司 Butt weld elbow pressing composite forming dies
CN105127300A (en) * 2015-09-30 2015-12-09 苏州索力旺新能源科技有限公司 Simple-type efficient groove punching machine
CN106734599A (en) * 2016-11-29 2017-05-31 金牌模具(常熟)有限公司 A kind of pressing and bending squeezes inclination angle mould
CN108326087A (en) * 2018-03-15 2018-07-27 安徽凯贝耐特钣金科技有限公司 A kind of sheet metal panel bending tool and bending method

Cited By (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN104890053A (en) * 2015-06-08 2015-09-09 无锡吉兴汽车声学部件科技有限公司 Guiding mechanism of punch die of acoustic components of automobiles
CN104942144A (en) * 2015-06-16 2015-09-30 沧州隆泰迪管道科技有限公司 Butt weld elbow pressing composite forming dies
CN105127300A (en) * 2015-09-30 2015-12-09 苏州索力旺新能源科技有限公司 Simple-type efficient groove punching machine
CN106734599A (en) * 2016-11-29 2017-05-31 金牌模具(常熟)有限公司 A kind of pressing and bending squeezes inclination angle mould
CN106734599B (en) * 2016-11-29 2018-10-12 金牌模具(常熟)有限公司 A kind of crowded inclination angle mold of pressing and bending
CN108326087A (en) * 2018-03-15 2018-07-27 安徽凯贝耐特钣金科技有限公司 A kind of sheet metal panel bending tool and bending method

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Granted publication date: 20140305

Termination date: 20150930