CN104492966A

CN104492966A - Punching composite die

Info

Publication number: CN104492966A
Application number: CN201410808999.2A
Authority: CN
Inventors: 聂福荣; 王玉兰; 王夏冰; 马栋林; 杨钒
Original assignee: Suzhou Vocational University
Current assignee: Suzhou Vocational University
Priority date: 2014-12-24
Filing date: 2014-12-24
Publication date: 2015-04-08
Anticipated expiration: 2034-12-24
Also published as: CN104492966B

Abstract

The invention discloses a punching composite die. The composite die comprises an upper die and a lower die, wherein a guide sleeve of the upper die sleeves a guide column of the lower die; the composite die further comprises an upper guide column, which is provided with a cutting-off convex die, of the upper die; an upper convex-concave die sleeves the upper guide column; a cutting-off convex die is embedded into the upper convex-concave die and sleeves the guide column; the composite die further comprises a lower guide column, which is provided with a lower convex die, of the lower die, a side hole convex die and an inclined wedge column; the lower convex die sleeves the lower guide column and the inclined wedge column; the side hole convex die is embedded into the lower convex die. With the adoption of the manner, six procedures of cutting a tongue, bending the middle part, bending the two ends, cutting off, punching a side wall hole and reshaping are combined in one step, so that only one die is needed; the procedures of cutting the tongue, bending the middle part, bending the two ends, cutting off, punching the side wall hole are finished in sequence before the procedure of reshaping and the reshaping is finally finished, so that the combination of the plurality of procedures is smoothly realized; the requirements on high precision, low cost and high benefits of modern production are met.

Description

A kind of punching-pressing composite mould

Technical field

The present invention relates to mould manufacturing field, particularly relate to a kind of punching-pressing composite mould.

Background technology

At present, the basic stamping procedure that the bool for the two ends bending of holes at lateral wall is shaped is:, specifically there are following four kinds of forming technology schemes blanking, punching, crooked end, bending centre:

(1) blanking, rush areole, bending two ends, bending in the middle of single operation be shaped;

(2) blanking, rush the first compound of areole, more bending two ends, bending in the middle of be shaped;

(3) blanking, rush areole, the first compound in bending two ends, more bending in the middle of be shaped;

(4) blanking, bending two ends, bending middle first compound, then rush areole shaping.

By analyzing, scheme (1) mould structure is simple, but needs 4 secondary moulds, and efficiency is very low, and can not produce high-precision stamping parts; Scheme (2), (3), (4) structure are slightly more complex, and need 2 pairs with mold, and accuracy and efficiency has and improves largely.But these four kinds of schemes can not meet the requirement of modern production high accuracy, low cost, high benefit far away.

Summary of the invention

The technical problem that the present invention mainly solves is to provide a kind of punching-pressing composite mould, can make to cut tongue, bending middle, bending two ends, cut off, rush areole, shaping 6 operations are once-combined, so only need 1 secondary mould, cut tongue, bending middle, bending two ends, cut off, rush areole and completed before shaping successively, finally complete shaping, realize the compound of multiple operation smoothly, meet the requirement of modern production high accuracy, low cost, high benefit.

For solving the problems of the technologies described above, the technical scheme that the present invention adopts is: provide a kind of punching-pressing composite mould, this composite die comprises upper die and lower die, and on the guide pillar of described counterdie, cover has the guide pin bushing of patrix; The described patrix that also comprises is provided with the upper lead cutting off punch, and upper lead overcoat has upper punch-die, and upper punch-die is embedded with cut-out punch, cuts off punch case on lead; Described counterdie also comprises the lower lead, side opening punch and the wedge post that are provided with lower punch, and lower punch is enclosed within lower lead and wedge post, and side opening punch is embedded in lower punch.

Preferably, described patrix also comprises upper bolster, upper padding plate, epirelief die block, discharging rubber, stripper, is fixed on upper bolster lower plane after described upper padding plate, epirelief die block, discharging rubber and stripper superpose successively; Described epirelief die block is fixed with punch-die, the upper plane of upper punch-die is against on upper padding plate, and upper punch-die is fixed with lead, and upper punch-die is embedded with cut-out punch, cut off punch case on upper lead, the lower plane cutting off punch is positioned at punch-die lower plane.

Preferably; described counterdie also comprises die shoe, lower bolster, kicker; described lower bolster and lower cavity die superpose successively and are fixed on plane on die shoe; lower punch and kicker is fixed with in the middle of lower cavity die; lower punch and kicker are all embedded in the middle of lower cavity die, and kicker is between lower punch and lower cavity die, and the lower bolster of fixed head of having held concurrently is fixed with lower lead and wedge post; lower punch is embedded with side opening punch, fits in the inclined-plane of side opening punch guide section inclined-plane and wedge post.

The invention has the beneficial effects as follows: the present invention is a kind of punching-pressing composite mould, can make to cut tongue, bending middle, bending two ends, cut off, rush areole, shaping 6 operations are once-combined, so only need 1 secondary mould, cut tongue, bending centre, crooked end, cut off, rush areole and completed before shaping successively, finally complete shaping, achieve the compound of multiple operation smoothly, meet the requirement of modern production high accuracy, low cost, high benefit.

Accompanying drawing explanation

Fig. 1 is the structural representation of a preferred embodiment of punching-pressing composite mould of the present invention.

Detailed description of the invention

Below in conjunction with accompanying drawing, present pre-ferred embodiments is described in detail, to make the advantage of invention and feature can be easier to be readily appreciated by one skilled in the art, thus more explicit defining is made to protection scope of the present invention.

Refer to Fig. 1, the embodiment of the present invention comprises:

A kind of punching-pressing composite mould, this composite die comprises upper die and lower die, and on the guide pillar 17 of described counterdie, cover has the guide pin bushing 16 of patrix; Described also comprising in the middle of patrix is provided with lead 13, and upper lead 13 overcoat has upper punch-die 7, and upper punch-die 7 is embedded with and cuts off punch 8, cuts off punch 8 and is enclosed within lead 13; Described also comprise counterdie be provided with lower lead 33, wedge post 26, with upper punch-die 7 with cut off lower cavity die corresponding to punch 8 19, side opening punch 30, lower punch 34; Described patrix also comprises upper bolster 5, upper padding plate 4, epirelief die block 3, discharging rubber 2, stripper 1, and described upper padding plate 4, epirelief die block 3, discharging rubber 2 and stripper 1 are fixed on upper bolster 5 lower plane after superposing successively; Described epirelief die block 3 is fixed with punch-die 7, and the upper plane of upper punch-die 7 is against on upper padding plate 4, and the centre of upper punch-die 7 is fixed with lead 13; Described counterdie also comprises die shoe 18, backing plate 25, lower bolster 28 and kicker 31; lower bolster 28 and lower cavity die 19 superpose successively and are fixed on plane on die shoe 18; backing plate 25, lower bolster 28, lower lead 33 and wedge post 26 are also fixed on die shoe 18 successively; lower punch 34 and kicker 31 is embedded with in the middle of lower cavity die 9; kicker 31 is between lower punch 34 and lower cavity die 19; side opening punch 30 is embedded in lower punch 34 li; wedge post 28 and lower lead 33 overcoat have lower punch 34, fit in the inclined-plane of the guide section of side opening punch 30 and the inclined-plane of wedge post 26.

The working method of punching-pressing composite mould of the present invention is: do not indicate in the slide block figure of forcing press and drive patrix to move downward, first stripper 1 touches the processed blank be placed on lower cavity die 19, discharging rubber 2 is compressed, stripper 1 compresses blank, cut tongue to start, patrix goes downwards to sweep and cuts, and namely cuts tongue and completes; Patrix continues descending, start bending until be greater than one before bending end to expect thick and bent intermediate radius sum, cut off punch 8 and also under the compression of push piece spring 11, compress blank with bending carrying out along with cutting tongue, until the upper surface cutting off punch 8 touches the lower surface in punch-die 7 centre position, the elastic force that equipment is supplied to lower punch 34 by screw 32 is before this enough to overcome the elastic force that push piece spring 11 is supplied to cut-out punch 8, and lower punch 34 and cut-out punch 8 all remain static; Patrix continues descending, cut off punch 8 and overcome the elastic force that equipment is supplied to lower punch 34 under the rigid pressure effect of upper punch-die 7, lower punch 34 is descending under the guide effect of lower lead 33 completes cut-out, meanwhile, be embedded in side opening punch 30 lateral movement under the effect on wedge post inclined-plane of lower punch 34 li, areole is rushed until complete, the lower surface of lower punch 34 and kicker 33 touches the upper surface of lower bolster 28 simultaneously, cuts tongue, bending centre, crooked end, cuts off, rushes areole, shaping 6 operations all complete.

Contrary during backhaul, forcing press drives patrix to move upward, lower punch 34 also moves upward, side opening punch 30 resets under the effect of back-moving spring 27, the discharging of blank is completed mainly through stripper 1, side opening waste material falls from nib, completes push piece and head part respectively by trimming punch 8 and kicker 31.

The present invention is a kind of punching-pressing composite mould, can make to cut tongue, bending middle, bending two ends, cut off, rush areole, shaping 6 operations are once-combined, so only need 1 secondary mould, cut tongue, bending middle, bending two ends, cut off, rush areole and completed before shaping successively, finally complete shaping, achieve the compound of multiple operation smoothly, meet the requirement of modern production high accuracy, low cost, high benefit.

The foregoing is only embodiments of the invention; not thereby the scope of the claims of the present invention is limited; every utilize description of the present invention and accompanying drawing content to do equivalent structure or equivalent flow process conversion; or be directly or indirectly used in other relevant technical fields, be all in like manner included in scope of patent protection of the present invention.

Claims

1. a punching-pressing composite mould, is characterized in that: this composite die comprises upper die and lower die, and on the guide pillar of described counterdie, cover has the guide pin bushing of patrix; The described patrix that also comprises is provided with the upper lead cutting off punch, and upper lead overcoat has upper punch-die, and upper punch-die is embedded with cut-out punch, cuts off punch case on lead; Described counterdie also comprises the lower lead, side opening punch and the wedge post that are provided with lower punch, and lower punch is enclosed within lower lead and wedge post, and side opening punch is embedded in lower punch.

2. punching-pressing composite mould according to claim 1, it is characterized in that: described patrix also comprises upper bolster, upper padding plate, epirelief die block, discharging rubber, stripper, after described upper padding plate, epirelief die block, discharging rubber and stripper superpose successively, be fixed on upper bolster lower plane; Described epirelief die block is fixed with punch-die, the upper plane of upper punch-die is against on upper padding plate, and upper punch-die is fixed with lead, and upper punch-die is embedded with cut-out punch, cut off punch case on upper lead, the lower plane cutting off punch is positioned at punch-die lower plane.

3. punching-pressing composite mould according to claim 1; it is characterized in that: described counterdie also comprises die shoe, lower bolster, kicker; described lower bolster and lower cavity die superpose successively and are fixed on plane on die shoe; lower punch and kicker is fixed with in the middle of lower cavity die; lower punch and kicker are all embedded in the middle of lower cavity die; kicker is between lower punch and lower cavity die; the lower bolster of fixed head of having held concurrently is fixed with lower lead and wedge post; lower punch is embedded with side opening punch, fits in the inclined-plane of side opening punch guide section inclined-plane and wedge post.