CN202803916U

CN202803916U - Cold punching compound mould

Info

Publication number: CN202803916U
Application number: CN 201220274196
Authority: CN
Inventors: 聂福荣; 王玉兰; 王夏冰; 马栋林; 杨钒; 李洪伟
Original assignee: Suzhou Vocational University
Current assignee: Yatai Heavy Industry Ltd By Share Ltd
Priority date: 2012-06-12
Filing date: 2012-06-12
Publication date: 2013-03-20
Anticipated expiration: 2022-06-12

Abstract

The utility model discloses a cold punching compound mould. The cold punching compound mould comprises an upper mould and a lower mould, wherein a guide sleeve of the upper mould is sheathed on a guide pillar of the lower mould; a bottom hole convex mould is arranged at the center of the upper mould; an upper convex-concave mould is sheathed on the bottom hole convex mould; a cut-off convex mould is embedded in the upper convex-concave mould; the cut-off convex mould is sheathed on the bottom hole convex mould; a lower convex-concave mould and a lower concave mould corresponding to the bottom hole convex mould and the cut-off convex mould are arranged on the lower mould; and a flange hole convex mould is also arranged on the lower mould. In such a mode, the five processes of cutting tongue, bending, punching bottom hole, punching flange hole and cutting are once compounded, so that only one set of mould is needed, the processes of cutting tongue, bending and punching bottom hole are finished before the processes of punching flange hole and cutting; the processes of punching flange hole and cutting are finished at the same time; the compound of a plurality of processes is successfully realized; and the requirements on high precision, low cost and high benefit of the modern production are met.

Description

A kind of cold stamping compound die

Technical field

The utility model relates to mould manufacturing field, particularly relates to a kind of cold stamping compound die.

Background technology

At present, for bottom and flange all the basic stamping procedure that is shaped of first order buckling spare with holes be: blanking, bending, rush bottom outlet, rush flange hole, following four kinds of forming technology schemes are specifically arranged:

(1) blanking, bending, rushes bottom outlet, rushes flange hole list operation and be shaped;

(2) blanking, to rush bottom outlet first compound, more crooked, rush flange hole list operation and be shaped;

(3) blanking, crooked first compound rushes bottom outlet again, rushes the flange hole combined shaping;

(4) blanking, rush bottom outlet, to rush flange hole first compound, bending forming again.

By analyzing, scheme (1) mould structure is simple, but needs 4 secondary moulds, and efficient 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 largely and improves.But these four kinds of schemes can not satisfy the requirement of modern production high accuracy, low cost, high benefit far away.

Summary of the invention

The technical problem that the utility model mainly solves provides a kind of cold stamping compound die, can make and cut tongue, bending, rush bottom outlet, rush flange hole, to cut off 5 operations once-combined, so only need 1 secondary mould, cut tongue, bending, rush bottom outlet and before rushing flange hole, cutting off, finish, rush flange hole, cut off and finish simultaneously, realize smoothly the compound of a plurality of operations, satisfied 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 utility model adopts is: a kind of cold stamping compound die is provided, and this compound die comprises upper die and lower die, and cover has the guide pin bushing of patrix on the guide pillar of described counterdie; The described patrix center that also comprises is provided with the bottom outlet punch, and bottom outlet punch overcoat has upper punch-die, and upper punch-die is embedded with the cut-out punch, cuts off punch case on the bottom outlet punch; The described counterdie that also comprises is provided with lower punch-die and the lower cavity die corresponding with bottom outlet punch and cut-out punch, and counterdie also is provided with the flange hole punch.

Preferably, described patrix also comprises upper bolster, upper padding plate, epirelief die block, discharging rubber, stripper and expeller, is fixed in the 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 the upper padding plate lower plane, the center of upper punch-die is fixed with the bottom outlet punch, upper punch-die is embedded with the cut-out punch, cut off punch case on the bottom outlet punch, the lower plane that cuts off punch is positioned at the punch-die lower plane, and the position that the lower plane of upper punch-die avoids cutting off punch is provided with expeller.

Preferably; described counterdie also comprises die shoe, lower bolster, lower punch fixed head and kicker; described lower bolster and lower cavity die superpose successively and are fixed in plane on the die shoe; be embedded with the lower punch fixed head in the middle of the lower cavity die; be fixed with lower punch-die and kicker on the lower punch fixed head, lower punch-die and kicker all are embedded in the middle of the lower cavity die, and kicker is between lower punch-die and lower cavity die; the lower punch fixed head is fixed in described flange hole punch lower end, and kicker is passed in flange hole punch upper end.

The beneficial effects of the utility model are: the utility model is a kind of cold stamping compound die, can make and cut tongue, bending, rush bottom outlet, rush flange hole, to cut off 5 operations once-combined, so only need 1 secondary mould, cut tongue, bending, rush bottom outlet and before rushing flange hole, cutting off, finish, rush flange hole, cut off and finish simultaneously, realize smoothly the compound of a plurality of operations, satisfied the requirement of modern production high accuracy, low cost, high benefit.

Description of drawings

Fig. 1 is the structural representation of a preferred embodiment of a kind of cold stamping compound die of the utility model.

The specific embodiment

Preferred embodiment is described in detail to the utility model below in conjunction with accompanying drawing, thereby so that the advantage of utility model and feature can be easier to be it will be appreciated by those skilled in the art that protection domain of the present utility model is made more explicit defining.

See also Fig. 1, the utility model embodiment comprises:

A kind of cold stamping compound die, this compound die comprise patrix 16 and counterdie 23, and cover has the guide pin bushing 18 of patrix 16 on the guide pillar 19 of described counterdie 23; Described patrix 16 centers that also comprise are provided with bottom outlet punch 15, and bottom outlet punch 15 overcoats have upper punch-die 7, and upper punch-die 7 is embedded with and cuts off punch 10, cuts off punch 10 and is enclosed within on the bottom outlet punch 15; The described counterdie 23 that also comprises is provided with bottom outlet punch 15 and cuts off punch 10 corresponding lower punch-die 28 and lower cavity die 21, and counterdie also is provided with flange hole punch 35.

Described patrix 16 also comprises upper bolster 5, upper padding plate 4, epirelief die block 3, discharging rubber 2, stripper 1 and expeller 8, and described upper padding plate, epirelief die block 3, discharging rubber 2 and stripper 1 are fixed in upper bolster 5 lower planes after superposeing successively; Described epirelief die block 3 is fixed with punch-die 7, the upper plane of upper punch-die 7 is against upper padding plate 4 lower planes, the center of upper punch-die 7 is fixed with bottom outlet punch 15, upper punch-die 7 is embedded with and cuts off punch 10, cutting off punch 10 is enclosed within on the bottom outlet punch 15, the lower plane that cuts off punch 10 is positioned at punch-die 7 lower planes, and the position that the lower plane of upper punch-die 7 avoids cutting off punch 10 is provided with expeller 8.

Described counterdie 23 also comprises die shoe 19, lower bolster 30, lower punch fixed head 32 and kicker 33, described lower bolster 30 and lower cavity die 21 superpose successively and are fixed in plane on the die shoe 19, be embedded with lower punch fixed head 32 in the middle of the lower cavity die 21, be fixed with lower punch-die 28 and kicker 33 on the lower punch fixed head 32, lower punch-die 28 and kicker 33 all are embedded in the middle of the lower cavity die 21, kicker 33 is between lower punch-die 28 and lower cavity die 21, lower punch fixed head 32 is fixed in described flange hole punch 35 lower ends, and kicker 33 is passed in flange hole punch 35 upper ends.

The working method of an a kind of cold stamping compound die of the utility model is: indicate drive patrix 16 among the slide block figure of forcing press and move downward, stripper 1 at first touches the processed blank that is placed on the lower cavity die 21, discharging rubber 2 is compressed, stripper 1 compresses blank, cutting tongue begins, patrix goes downwards to sweep and cuts, and namely cuts tongue and finishes; Patrix 16 continues descending, beginning is crooked until thick greater than a material before crooked the end, cut off punch 10 also along with the carrying out that cuts tongue and bending compresses blank under the compression of spring 13, bottom outlet punch 15 touches blank, descending continuation begins to rush bottom outlet in the time of crooked, until cut off the lower surface that the upper surface of punch 10 touches punch-die 7 centre positions, the upper surface of flange hole punch 35 touches the lower surface of bool flange, crooked, rushing bottom outlet finishes, spring 29 elastic force that offers lower punch-die 28 is enough to overcome spring 13 and offers the elastic force that cuts off punch 10 before this, lower punch-die 28 and cut off punch 10 and all remain static; Patrix continues descending, cut off punch 10 and under the rigid pressure effect of upper punch-die 7, overcome the elastic force that spring 29 offers lower punch-die 28, lower punch-die 28 is descending under the guide effect of little guide pillar 27 finishes cut-out, meanwhile, upper punch-die 7 descending finishing are rushed flange hole, until the lower surface of lower punch-die 28 and kicker 33 touches the upper surface of lower punch fixed head 32 simultaneously, cut tongue, bending, rush bottom outlet, rush flange hole, cut off five operations and all finish;

Opposite during backhaul, forcing press drives patrix and moves upward, mainly by stripper 1 and expeller 8 finish waste material and blank discharging, finish respectively push piece and head part by side cut punch 10 and kicker 33.

A kind of cold stamping compound die of the utility model, can make and cut tongue, bending, rush bottom outlet, rush flange hole, to cut off 5 operations once-combined, so only need 1 secondary mould, cut tongue, bending, rush bottom outlet and before rushing flange hole, cutting off, finish, rush flange hole, cut off and finish simultaneously, realize smoothly the compound of a plurality of operations, satisfied the requirement of modern production high accuracy, low cost, high benefit.

The above only is embodiment of the present utility model; be not so limit claim of the present utility model; every equivalent structure or equivalent flow process conversion that utilizes the utility model specification and accompanying drawing content to do; or directly or indirectly be used in other relevant technical fields, all in like manner be included in the scope of patent protection of the present utility model.

Claims

1. cold stamping compound die, it is characterized in that: this compound die comprises upper die and lower die, cover has the guide pin bushing of patrix on the guide pillar of described counterdie; The described patrix center that also comprises is provided with the bottom outlet punch, and bottom outlet punch overcoat has upper punch-die, and upper punch-die is embedded with the cut-out punch, cuts off punch case on the bottom outlet punch; The described counterdie that also comprises is provided with lower punch-die and the lower cavity die corresponding with bottom outlet punch and cut-out punch, and counterdie also is provided with the flange hole punch.

2. a kind of cold stamping compound die according to claim 1, it is characterized in that: described patrix also comprises upper bolster, upper padding plate, epirelief die block, discharging rubber, stripper and expeller, is fixed in the 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 the upper padding plate lower plane, the center of upper punch-die is fixed with the bottom outlet punch, upper punch-die is embedded with the cut-out punch, cut off punch case on the bottom outlet punch, the lower plane that cuts off punch is positioned at the punch-die lower plane, and the position that the lower plane of upper punch-die avoids cutting off punch is provided with expeller.

3. a kind of cold stamping compound die according to claim 1; it is characterized in that: described counterdie also comprises die shoe, lower bolster, lower punch fixed head and kicker; described lower bolster and lower cavity die superpose successively and are fixed in plane on the die shoe; be embedded with the lower punch fixed head in the middle of the lower cavity die; be fixed with lower punch-die and kicker on the lower punch fixed head; lower punch-die and kicker all are embedded in the middle of the lower cavity die; kicker is between lower punch-die and lower cavity die; the lower punch fixed head is fixed in described flange hole punch lower end, and kicker is passed in flange hole punch upper end.