CN1225323C - Two stage punching process with stage feed die - Google Patents

Two stage punching process with stage feed die Download PDF

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Publication number
CN1225323C
CN1225323C CN 03108743 CN03108743A CN1225323C CN 1225323 C CN1225323 C CN 1225323C CN 03108743 CN03108743 CN 03108743 CN 03108743 A CN03108743 A CN 03108743A CN 1225323 C CN1225323 C CN 1225323C
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China
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punching
die
waste
waste material
materials
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CN 03108743
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CN1439466A (en
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卢险峰
陈勇
吴永东
揭小平
徐明发
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Nanchang University
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Nanchang University
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Abstract

The present invention relates to a two-step punching method with a stage fed die, which is composed of a half punching and a pushing off steps, wherein in the half punching step, work pieces and waste materials are divided but not separated; an elastic piece on the bottom of a female die jacks up and pushes the materials to the pushing off step, and a push-off arm separates the work pieces and the waste materials. In order to ensure the intensity of the female die and simultaneously realize spacing feed, a groove vacancy corresponding to the size of a punched piece can be added between the two steps. The present invention has the major advantages that the punching method can eradicate up-waste and waste blockage phenomena in punching especially automatic punching process so as to guarantee the continuity of the punching operation process, reduce sound-source transmitter noises by 4 to 9 db in the punching process for common materials such as steel, aluminum alloy, copper alloy, etc., effectively improve labor conditions and clarify industrial production conditions.

Description

The progressive die two stage punching process
Technical field the invention belongs to the separation processing method of the Sheet Metal Forming Technology in the metal forming technology.
Background technology so far, punching process still is most widely used processing method for stamping always, blanking die can obtain a blanking part in the one stroke of press.But still there are many problems in punching process, such as blanking part section fineness, dimensional accuracy, burr, stamping-out noise, waste material is up and clogging or the like.
Development through over half a century, in order to solve problems such as blanking part section fineness and burr, operation work step angle from punching process, have the single work step of following change to be operating as a plurality of work step method of operating: Tian Zhensan has invented a kind of upper and lower stamping-out before 1958, educate hero and invented the flat-crushing type blanking method with herding the open country in 1975, H.Leibing in 1977 has invented and has been with reverse three work step stamping-outs, and Tian Zhensan, blue or green wood have bravely been invented the rolling-type blanking method before 1980.
These methods, though solved problems such as blanking part section fineness, dimensional accuracy and burr respectively preferably, but waste material is up in addition is not resolved with blockage problem and stamping-out noise problem, and is also increasing the trouble in the technological operation to some extent.Although the reverse three work step stamping-outs of being with that H.Leibing proposes have the stamping-out of reduction anti noise to a certain extent,, its operation needs three work steps, cumbersome, mould structure is also more complicated, and preferably triple action press to be arranged, in addition, waste material is up all not to be resolved with blockage problem.
Summary of the invention the objective of the invention is initiatively to reduce punching process sound source noise and eliminates the especially up and waste material clogging of the waste material in automation punch process (progressive die) of stamping-out.
The present invention realizes by following two work steps of progressive blanking die.As shown in drawings, at first work step, as Fig. 1 (a), claim half stamping-out work step again, when drift 2 comes downwards to bottom dead centre, drift is only cut some degree of depth h of material, make workpiece and waste material disconnected and not from, then, along with the drift backhaul, workpiece and waste material together from die 1 by jack-up, and be pushed to the pusher station; Second work step as Fig. 1 (b), claims again to push away work step, and workpiece (or waste material) is separated from the die hole of pusher station by charging ram 3 and pushes away away.
The degree of depth h of the said drift of the present invention incision material has different degree of depth requirements to different materials, different stamping-out conditions, total technological requirement be allow workpiece and waste material break and not from.
Under one situation, to materials such as steel commonly used, aluminium, copper, the degree of depth h of drift incision material preferably is the 0.7-0.8 of material thickness t, i.e. h=0.7-0.8t.
Said workpiece of the present invention and waste material together from die 1 by the process of jack-up, can an elastic component realizes by having laid in the die of half stamping-out work step bottom, during off working state, the plane is in same plane on its working face and the die, when the drift backhaul, by it with workpiece and waste material together from die 1 by jack-up, to guarantee the intensity of smooth and easy feeding and whole die.This elastic component can be spring part, rubber, polyurethane cushion block or the like.
In order to ensure strength of concave mould, realize the spacing feeding simultaneously, the present invention also can increase by one and the corresponding groove of blanking part size room in the middle of two work steps.Certainly the present invention also takes waste material side tool formula spacing.
The production efficiency of two stage punching process and traditional common stamping are just the same, are actually the stamping-out that common stamping is become the simple level progressive die, and the die clearance is also identical with common stamping.
The present invention has been owing to eradicated the up and waste material clogging of waste material, can guarantee that the punching process operation is especially to the continuity of automation punch process process; To materials such as steel commonly used, aluminium alloy, copper alloys, can reduce punching process sound source shot noise and reach the 4-9 decibel, can improve working conditions the purified industrial production environment effectively.
Description of drawings Fig. 1 is a principle schematic of the present invention.(a) be the first work step schematic diagram, (b) the second work step schematic diagram, wherein [1] is that die, [2] they are that drift incision depth of material, t be the thickness of material for charging ram, [4] for elastic component, h for drift, [3].
Fig. 2 is a progressive die structure schematic diagram of the present invention, and [1] is that die, [2] are elastic component for drift, [3] for charging ram, [4].In the middle of two stations, leave a groove room.
Specific embodiment the present invention will be further described by following examples.
Embodiment.
By the multiple material of method of the present invention, on distinct device, different mould, test.
The penetraction depth of drift is respectively in first work step in the experiment:
Steel (SPCC, t=1.0) h=(0.78-0.82) t
Aluminium alloy (t=1.4) h=(0.76-0.80) t
Fine aluminium (L3, t=1.0) h=(0.70-0.72) t
Copper (H62, t=1.5) h=(0.70-0.78) t
Record this two step of progressive die blanking method and can reduce the stamping-out noise effectively, its effect sees table.
Stamping-out noise fest test dB (A)
Figure C0310874300041

Claims (4)

1, a kind of progressive die two stage punching process, separate two work steps with waste material by punching press and workpiece and form, it is characterized in that the punching press work step is half stamping-out work step, make workpiece and waste material disconnected and not from, then workpiece and waste material are pushed into and push away station, workpiece is separated with waste material by charging ram.
2,, it is characterized in that the degree of depth of drift incision material is 0.7~0.8 of a material thickness according to the described blanking method of claim 1.
3,, it is characterized in that having laid an elastic component in the die bottom according to the described blanking method of claim 1.
4,, it is characterized in that in the middle of two work steps, increasing by one and the corresponding groove of blanking part size room according to the described blanking method of claim 1.
CN 03108743 2003-03-26 2003-03-26 Two stage punching process with stage feed die Expired - Fee Related CN1225323C (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
CN 03108743 CN1225323C (en) 2003-03-26 2003-03-26 Two stage punching process with stage feed die

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
CN 03108743 CN1225323C (en) 2003-03-26 2003-03-26 Two stage punching process with stage feed die

Publications (2)

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CN1439466A CN1439466A (en) 2003-09-03
CN1225323C true CN1225323C (en) 2005-11-02

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Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN101678429B (en) * 2007-05-25 2016-07-06 麦格纳国际公司 The method of stamped sheet metal parts

Families Citing this family (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US7739780B2 (en) * 2005-06-09 2010-06-22 Hansen Corporation Method of manufacturing using a die to produce a machined part
CN101879547B (en) * 2010-06-17 2013-01-23 江苏大学 Precise progressive die multistep blanking method for controlling deformation of slender cantilever part
CN102350466B (en) * 2011-10-18 2014-11-05 无锡市金杨新型电源有限公司 Battery shell stamping device
CN108787855B (en) * 2018-07-23 2020-07-28 天津锦泰勤业精密电子有限公司 Method for manufacturing plate-like member
CN110743961A (en) * 2019-11-01 2020-02-04 苏州捷尔力实业有限公司 Punching die and machining process of motor support
CN113263098A (en) * 2021-05-25 2021-08-17 成都宏明双新科技股份有限公司 Thick stainless steel punching and cutting process

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN101678429B (en) * 2007-05-25 2016-07-06 麦格纳国际公司 The method of stamped sheet metal parts

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Assignee: Foshan City Shunde Lexing Metal Product Co., Ltd.

Assignor: Nanchang University

Contract record no.: 2010440000556

Denomination of invention: Two stage punching process with stage feed die

Granted publication date: 20051102

License type: Exclusive License

Open date: 20030903

Record date: 20100524

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CF01 Termination of patent right due to non-payment of annual fee

Granted publication date: 20051102

Termination date: 20120326