CN102728719A - Composite cold punching die - Google Patents

Composite cold punching die Download PDF

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Publication number
CN102728719A
CN102728719A CN201210191386XA CN201210191386A CN102728719A CN 102728719 A CN102728719 A CN 102728719A CN 201210191386X A CN201210191386X A CN 201210191386XA CN 201210191386 A CN201210191386 A CN 201210191386A CN 102728719 A CN102728719 A CN 102728719A
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CN
China
Prior art keywords
die
punch
blanking
pull
stretch
Prior art date
Application number
CN201210191386XA
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Chinese (zh)
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CN102728719B (en
Inventor
聂福荣
张红兵
许春龙
李耀辉
田菲
顾遵正
Original Assignee
苏州市职业大学
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Application filed by 苏州市职业大学 filed Critical 苏州市职业大学
Priority to CN201210191386.XA priority Critical patent/CN102728719B/en
Publication of CN102728719A publication Critical patent/CN102728719A/en
Application granted granted Critical
Publication of CN102728719B publication Critical patent/CN102728719B/en

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Abstract

The invention discloses a composite cold punching die. The composite cold punching die comprises an upper die and a lower die, and a guide sleeve of the upper die is sleeved on a guide post of the lower die; the upper die is provided with a bottom hole male die, and a drawing female die and an upper convex female die are sleeved outside the bottom hole male die; and the lower die is provided with a lower convex female die, a trimming male die and a blanking female die corresponding to the bottom hole male die, the drawing female die and the upper convex female die. Through the composite cold punching die, blanking, drawing, punching and trimming can be compounded at one time, so that only one set of die is required; and blanking and drawing are finished before punching and trimming, so that the four procedures are smoothly compounded, and requirements of modern production for high precision, low cost and high benefits are met.

Description

A kind of compound cold-punching mould
Technical field
The present invention relates to mould manufacturing field, particularly relate to a kind of compound cold-punching mould.
Background technology
At present, for bottom band 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 earlier compound, and pull and stretch, single operation of cutting edge are shaped again;
(3) blanking, pull and stretch are earlier compound, again towards bottom outlet and side cut combined shaping.
(4) blanking, pull and stretch, earlier compound towards bottom outlet, cutting edge is shaped again;
Through 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 complicated a little, and need 2 pairs with mold, and accuracy and efficiency has raising largely.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 present invention mainly solves provides a kind of compound 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 accomplished in punching with before cutting edge, realize the compound of four operations smoothly, have 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 present invention adopts is: a kind of compound cold-punching mould is provided, and this compound cold-punching mould comprises upper die and lower die, is with the guide pin bushing of patrix on the guide pillar of said counterdie; The said patrix that also comprises is provided with the bottom outlet punch, and the bottom outlet punch is with pull and stretch die and last punch-die outward; The said counterdie that also comprises is provided with the following punch-die corresponding with bottom outlet punch, pull and stretch die and last punch-die, side cut punch and blanking die.
Preferably; Said patrix also comprises upper bolster, upper padding plate, last punch retainer, 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 said upper padding plate, last punch retainer, epirelief die block, rubber blanket and stripper superpose successively; Be fixed with punch-die on the said epirelief die block, last punch-die is embedded with the pull and stretch die, is provided with limited block in the pull and stretch die; Said going up on the punch retainer is fixed with the bottom outlet punch, and the bottom outlet punch passes epirelief die block, limited block and push piece plate successively; Be provided with push pedal said also comprising between upper padding plate and the upper bolster, the push pedal lower plane be connected push rod on end in contact, connect push rod and pass upper padding plate successively, be against on the push piece plate after going up punch retainer, epirelief die block and limited block.
Preferably; Said counterdie also comprises die shoe, lower bolster, following punch-die fixed head, blanking die and die pad; Said lower bolster, following punch-die fixed head and blanking die superpose successively and are fixed in plane on the die shoe; Be provided with down punch-die in the middle of the blanking die, following punch-die is with the side cut punch outward, is provided with die pad between side cut punch and the blanking die.
The invention has the beneficial effects as follows: a kind of compound cold-punching mould of the present invention; Can make blanking, pull and stretch, punching, side cut once-combined; So only need 1 secondary mould; Blanking, pull and stretch are accomplished in punching with before cutting edge, realize the compound of four operations smoothly, have 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 compound cold-punching mould of the present invention.
The specific embodiment
Below in conjunction with accompanying drawing preferred embodiment of the present invention is set forth in detail, thereby protection scope of the present invention is made more explicit defining so that the advantage of invention and characteristic can be easier to it will be appreciated by those skilled in the art that.
See also Fig. 1, the embodiment of the invention comprises:
A kind of compound cold-punching mould, this compound cold-punching mould comprise patrix 6 and counterdie 19, are with the guide pin bushing 8 of patrix 6 on the guide pillar 9 of said counterdie 19; The said patrix 6 that also comprises is provided with bottom outlet punch 39, the bottom outlet punch 39 outer epirelief dies 32 that are with; The said counterdie 19 that also comprises is provided with following punch-die 21, side cut punch 17 and the blanking die 12 corresponding with bottom outlet punch 39, pull and stretch die 33 and last punch-die 32.
Said patrix 6 also comprises upper bolster 10, upper padding plate 35, goes up punch retainer 34, epirelief die block 31, rubber blanket 29, stripper 11, pull and stretch die 33, limited block 37, connect push rod 38, push pedal 3 and push piece plate 15, said upper padding plate 35, goes up and is fixed in upper bolster 10 lower planes after punch retainer 34, epirelief die block 31, rubber blanket 29 and stripper 11 superpose successively; Be fixed with punch-die 32 on the said epirelief die block 31, last punch-die 32 is embedded with pull and stretch die 33, is provided with limited block 37 in the pull and stretch die 33; Said going up on the punch retainer 34 is fixed with bottom outlet punch 39, and bottom outlet punch 39 passes epirelief die block 31, limited block 37 and push piece plate 15 successively; Be provided with push pedal 3 said 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 push rod 38 and pass upper padding plate 35 successively, be against on the push piece plate 15 after going up punch retainer 34, epirelief die block 31 and limited block 37.
Said counterdie 19 also comprises die shoe 26, lower bolster 13, following punch-die fixed head 14, blanking die 12 and die pad 18; Said lower bolster 13, punch-die fixed head 14 and blanking die 12 superpose successively and are fixed in plane on the die shoe 26 down; Be provided with down punch-die 21 in the middle of the blanking die 12; Be with side cut punch 17 outside the following punch-die 21, be provided with die pad 18 between side cut punch 17 and the blanking die 12.
The working method of a kind of compound cold-punching mould of the present invention 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, and discharging rubber 29 is continued compression, and 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 promptly to move downward an about material thick for punch-die, accomplishes 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, and up to the complete matched moulds of upper and lower mould, blanking, pull and stretch, punching, side cut are all accomplished; Opposite during backhaul, forcing press drives patrix and moves upward, mainly through stripper 11 and die pad 18 accomplish waste materials and blank discharging, accomplish head part and push piece respectively through side cut punch 17 and push piece plate 15.
A kind of compound cold-punching mould of the present invention; Can make blanking, pull and stretch, punching, side cut once-combined, so only need 1 secondary mould, blanking, pull and stretch are accomplished 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 is merely embodiments of the invention; Be not so limit claim of the present invention; Every equivalent structure or equivalent flow process conversion that utilizes specification of the present invention and accompanying drawing content to be done; 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 invention.

Claims (3)

1. compound cold-punching mould, it is characterized in that: this compound cold-punching mould comprises upper die and lower die, is with the guide pin bushing of patrix on the guide pillar of said counterdie; The said patrix that also comprises is provided with the bottom outlet punch, and the bottom outlet punch is with pull and stretch die and last punch-die outward; The said counterdie that also comprises is provided with the following punch-die corresponding with bottom outlet punch, pull and stretch die and last punch-die, side cut punch and blanking die.
2. a kind of compound cold-punching mould according to claim 1; It is characterized in that: said patrix also comprises upper bolster, upper padding plate, last punch retainer, 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 said upper padding plate, last punch retainer, epirelief die block, rubber blanket and stripper superpose successively; Be fixed with punch-die on the said epirelief die block, last punch-die is embedded with the pull and stretch die, is provided with limited block in the pull and stretch die; Said going up on the punch retainer is fixed with the bottom outlet punch, and the bottom outlet punch passes epirelief die block, limited block and stripper successively; Be provided with push pedal said also comprising between upper padding plate and the upper bolster, the push pedal lower plane be connected push rod on end in contact, connect push rod and pass upper padding plate successively, be against on the push piece plate after going up punch retainer, epirelief die block and limited block.
3. a kind of compound cold-punching mould according to claim 1; It is characterized in that: said counterdie also comprises die shoe, lower bolster, following punch-die fixed head, blanking die and die pad; Said lower bolster, following punch-die fixed head and blanking die superpose successively and are fixed in plane on the die shoe; Be provided with down punch-die in the middle of the blanking die, following punch-die is with the side cut punch outward, is provided with die pad between side cut punch and the blanking die.
CN201210191386.XA 2012-06-12 2012-06-12 Composite cold punching die CN102728719B (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
CN201210191386.XA CN102728719B (en) 2012-06-12 2012-06-12 Composite cold punching die

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
CN201210191386.XA CN102728719B (en) 2012-06-12 2012-06-12 Composite cold punching die

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CN102728719A true CN102728719A (en) 2012-10-17
CN102728719B CN102728719B (en) 2014-05-21

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Cited By (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN103302496A (en) * 2013-06-07 2013-09-18 江苏大学 Upsetting formed automobile framework piece progressive die and using method thereof
CN104128416A (en) * 2014-06-26 2014-11-05 梧州恒声电子科技有限公司 Inner and outer periphery fine blanking die
CN104128415A (en) * 2014-06-26 2014-11-05 梧州恒声电子科技有限公司 Technique of inner and outer periphery fine blanking die
CN103611813B (en) * 2013-11-27 2016-05-18 梧州恒声电子科技有限公司 Copper ring drawing trimming technology
CN107030177A (en) * 2017-06-14 2017-08-11 江西江铃底盘股份有限公司 A kind of automobile drive axle adjusting nut Blanking Punching Compound Die
CN108435910A (en) * 2018-05-24 2018-08-24 滁州市艾德模具设备有限公司 Inner tank of washing machine protecgulum stretches punching integration mold

Citations (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR2889977A1 (en) * 2005-08-31 2007-03-02 Adiapress Sarl Die lifter for adiabatic energy conversion machine has table and guide block designed to receive lifting pushers operated by power cylinders
CN101543871A (en) * 2009-04-22 2009-09-30 徐剑光 Forming processing technology for stainless steel sinks
CN201385077Y (en) * 2009-05-05 2010-01-20 苏州市职业大学 Compound cold stamping die
CN201432054Y (en) * 2009-05-11 2010-03-31 襄樊东昇机械有限公司 Die compounding blanking, stretching and lateral punching
CN101758137A (en) * 2009-05-05 2010-06-30 苏州市职业大学 Compound punching die
CN202803915U (en) * 2012-06-12 2013-03-20 苏州市职业大学 Compound cold-punching mould

Patent Citations (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR2889977A1 (en) * 2005-08-31 2007-03-02 Adiapress Sarl Die lifter for adiabatic energy conversion machine has table and guide block designed to receive lifting pushers operated by power cylinders
CN101543871A (en) * 2009-04-22 2009-09-30 徐剑光 Forming processing technology for stainless steel sinks
CN201385077Y (en) * 2009-05-05 2010-01-20 苏州市职业大学 Compound cold stamping die
CN101758137A (en) * 2009-05-05 2010-06-30 苏州市职业大学 Compound punching die
CN201432054Y (en) * 2009-05-11 2010-03-31 襄樊东昇机械有限公司 Die compounding blanking, stretching and lateral punching
CN202803915U (en) * 2012-06-12 2013-03-20 苏州市职业大学 Compound cold-punching mould

Cited By (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN103302496A (en) * 2013-06-07 2013-09-18 江苏大学 Upsetting formed automobile framework piece progressive die and using method thereof
CN103611813B (en) * 2013-11-27 2016-05-18 梧州恒声电子科技有限公司 Copper ring drawing trimming technology
CN104128416A (en) * 2014-06-26 2014-11-05 梧州恒声电子科技有限公司 Inner and outer periphery fine blanking die
CN104128415A (en) * 2014-06-26 2014-11-05 梧州恒声电子科技有限公司 Technique of inner and outer periphery fine blanking die
CN107030177A (en) * 2017-06-14 2017-08-11 江西江铃底盘股份有限公司 A kind of automobile drive axle adjusting nut Blanking Punching Compound Die
CN108435910A (en) * 2018-05-24 2018-08-24 滁州市艾德模具设备有限公司 Inner tank of washing machine protecgulum stretches punching integration mold

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