CN202803915U

CN202803915U - Compound cold-punching mould

Info

Publication number: CN202803915U
Application number: CN 201220273700
Authority: CN
Inventors: 聂福荣; 张红兵; 许春龙; 李耀辉; 田菲; 顾遵正
Original assignee: Suzhou Vocational University
Current assignee: Suzhou Vocational University
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 compound cold-punching mould. The compound cold-punching mould comprises an upper mould and a lower mould, wherein a guide sleeve of the upper mould is sleeved on a guide pole of the lower mould; the upper mould is provided with a bottom hole male mould, and a drawing female mould and an upper punch-die are sleeved outside the bottom hole male mould; and the lower mould is provided with a lower punch-die, an edge cutting male mould and a blanking female mould which correspond to the bottom hole male mould, the drawing female mould and the upper punch-die. By adopting the manner, the compound cold-punching mould achieves one-time compounding of blanking, drawing, punching and edge cutting, so that only one pair of moulds is required, blanking and drawing are completed before punching and edge cutting, the four procedures are successfully combined, and accordingly, the requirements for high precision, low cost and high benefits of modern production are satisfied.

Description

A kind of composite cold-punching mould

Technical field

The utility model relates to mould manufacturing field, particularly relates to a kind of composite cold-punching mould.

Background technology

At present, for the bottom with aperture and the basic stamping procedure that has the once drawing spare of flange to be shaped be: blanking, pull and stretch, punching, side cut specifically have following four kinds of forming technology schemes:

(1) blanking, pull and stretch, punching, the single operation of side cut are shaped;

(2) blanking, punching are first compound, and pull and stretch, single operation of cutting edge are shaped again;

(3) blanking, pull and stretch are first compound, rush bottom outlet and side cut combined shaping again.

(4) blanking, pull and stretch, to rush bottom outlet first compound, cutting edge is shaped 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.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 composite cold-punching mould, can make blanking, pull and stretch, punching, side cut once-combined, so only need 1 secondary mould, blanking, pull and stretch are finished in punching with before cutting edge, realize smoothly the compound of four 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 composite cold-punching mould is provided, and this composite cold-punching mould 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 that also comprises is provided with the bottom outlet punch, and bottom outlet punch overcoat has pull and stretch die and upper punch-die; The described counterdie that also comprises is provided with the lower punch-die corresponding with bottom outlet punch, pull and stretch die and upper punch-die, side cut punch and blanking die.

Preferably, described patrix also comprises upper bolster, upper padding plate, upper male mould fixed head, epirelief die block, rubber blanket, stripper, pull and stretch die, limited block, connection push rod, push pedal and push piece plate, is fixed in the upper bolster lower plane after described upper padding plate, upper male mould fixed head, epirelief die block, rubber blanket and stripper superpose successively; Be fixed with punch-die on the described epirelief die block, upper punch-die is embedded with the pull and stretch die, is provided with limited block in the pull and stretch die; Be fixed with the bottom outlet punch on the described upper male mould fixed head, the bottom outlet punch passes epirelief die block, limited block and push piece plate successively; Be provided with push pedal described also comprising between upper padding plate and the upper bolster, the push pedal lower plane be connected push rod on end in contact, connect and to be against on the push piece plate after push rod passes upper padding plate, upper male mould fixed head, epirelief die block and limited block successively.

Preferably; described counterdie also comprises die shoe, lower bolster, lower punch-die fixed head, blanking die and die pad; described lower bolster, lower punch-die fixed head and blanking die superpose successively and are fixed in plane on the die shoe; be provided with lower punch-die in the middle of the blanking die; lower punch-die overcoat has the side cut punch, is provided with die pad between side cut punch and the blanking die.

The beneficial effects of the utility model are: a kind of composite cold-punching mould of the utility model, can make blanking, pull and stretch, punching, side cut once-combined, so only need 1 secondary mould, blanking, pull and stretch are finished in punching with before cutting edge, realize smoothly the compound of four 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 composite cold-punching mould 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 composite cold-punching mould, this composite cold-punching mould comprise patrix 6 and counterdie 19, and cover has the guide pin bushing 8 of patrix 6 on the guide pillar 9 of described counterdie 19; The described patrix 6 that also comprises is provided with bottom outlet punch 39, and bottom outlet punch 39 overcoats have upper punch-die 32; The described counterdie 19 that also comprises is provided with lower punch-die 21, side cut punch 17 and the blanking die 12 corresponding with bottom outlet punch 39, pull and stretch die 33 and upper punch-die 32.

Described patrix 6 also comprises upper bolster 10, upper padding plate 35, upper male mould fixed head 34, epirelief die block 31, rubber blanket 29, stripper 11, pull and stretch die 33, limited block 37, connects push rod 38, push pedal 3 and push piece plate 15, and described upper padding plate 35, upper male mould fixed head 34, epirelief die block 31, rubber blanket 29 and stripper 11 are fixed in upper bolster 10 lower planes after superposeing successively; Be fixed with punch-die 32 on the described epirelief die block 31, upper punch-die 32 is embedded with pull and stretch die 33, is provided with limited block 37 in the pull and stretch die 33; Be fixed with bottom outlet punch 39 on the described upper male mould fixed head 34, bottom outlet punch 39 passes epirelief die block 31, limited block 37 and push piece plate 15 successively; Be provided with push pedal 3 described also comprising between upper padding plate 35 and the upper bolster 10, push pedal 3 lower planes be connected push rod 38 on end in contact, connect and to be against on the push piece plate 15 after push rod 38 passes upper padding plate 35, upper male mould fixed head 34, epirelief die block 31 and limited block 37 successively.

Described counterdie 19 also comprises die shoe 26, lower bolster 13, lower punch-die fixed head 14, blanking die 12 and die pad 18, described lower bolster 13, lower punch-die fixed head 14 and blanking die 12 superpose successively and are fixed in plane on the die shoe 26, be provided with lower punch-die 21 in the middle of the blanking die 12, lower punch-die 21 overcoats have side cut punch 17, are provided with die pad 18 between side cut punch 17 and the blanking die 12.

The working method of a kind of composite cold-punching mould of the utility model is that the slide block drive patrix of forcing press moves downward, stripper 11 at first touches the processed blank that is placed on the blanking die 12, discharging rubber 29 is continued compression, stripper 11 compresses blank, because it is thick that the upper surface of punch-die is lower than the about material in upper surface of blanking die 12, patrix is descending again, and namely to move downward an about material thick for punch-die, finishes blanking; Patrix continues to move downward the beginning pull and stretch, carry out flanging by die pad 18 and side cut punch 17 during pull and stretch, along with the carrying out of pull and stretch, when patrix goes downwards to side cut punch 17 lower surfaces and touches the upper surface of lower bolster 13,

side cut punch

17,12 stop motions of pull and stretch die, pull and stretch finishes; Patrix drives punch-die to be continued descending the beginning and cuts edge, and meanwhile bottom outlet punch 39 touches blank and begins punching, until the complete matched moulds of upper and lower mould, blanking, pull and stretch, punching, side cut are all finished; Opposite during backhaul, forcing press drives patrix and moves upward, mainly by stripper 11 and die pad 18 finish waste material and blank discharging, finish respectively head part and push piece by side cut punch 17 and push piece plate 15.

A kind of composite cold-punching mould of the utility model, can make blanking, pull and stretch, punching, side cut once-combined, so only need 1 secondary mould, blanking, pull and stretch are finished in punching with before cutting edge, realize smoothly the compound of four 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. composite cold-punching mould, it is characterized in that: this composite cold-punching mould comprises upper die and lower die, cover has the guide pin bushing of patrix on the guide pillar of described counterdie; The described patrix that also comprises is provided with the bottom outlet punch, and bottom outlet punch overcoat has pull and stretch die and upper punch-die; The described counterdie that also comprises is provided with the lower punch-die corresponding with bottom outlet punch, pull and stretch die and upper punch-die, side cut punch and blanking die.

2. a kind of composite cold-punching mould according to claim 1, it is characterized in that: described patrix also comprises upper bolster, upper padding plate, upper male mould fixed head, epirelief die block, rubber blanket, stripper, pull and stretch die, limited block, connection push rod, push pedal and push piece plate, is fixed in the upper bolster lower plane after described upper padding plate, upper male mould fixed head, epirelief die block, rubber blanket and stripper superpose successively; Be fixed with punch-die on the described epirelief die block, upper punch-die is embedded with the pull and stretch die, is provided with limited block in the pull and stretch die; Be fixed with the bottom outlet punch on the described upper male mould fixed head, the bottom outlet punch passes epirelief die block, limited block and push piece plate successively; Be provided with push pedal described also comprising between upper padding plate and the upper bolster, the push pedal lower plane be connected push rod on end in contact, connect and to be against on the push piece plate after push rod passes upper padding plate, upper male mould fixed head, epirelief die block and limited block successively.

3. a kind of composite cold-punching mould according to claim 1; it is characterized in that: described counterdie also comprises die shoe, lower bolster, lower punch-die fixed head, blanking die and die pad; described lower bolster, lower punch-die fixed head and blanking die superpose successively and are fixed in plane on the die shoe; be provided with lower punch-die in the middle of the blanking die; lower punch-die overcoat has the side cut punch, is provided with die pad between side cut punch and the blanking die.