CN201684829U - Mould for precise punching - Google Patents

Mould for precise punching Download PDF

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Publication number
CN201684829U
CN201684829U CN2010201255058U CN201020125505U CN201684829U CN 201684829 U CN201684829 U CN 201684829U CN 2010201255058 U CN2010201255058 U CN 2010201255058U CN 201020125505 U CN201020125505 U CN 201020125505U CN 201684829 U CN201684829 U CN 201684829U
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CN
China
Prior art keywords
mould
binder
pressure
pressing
die
Prior art date
Application number
CN2010201255058U
Other languages
Chinese (zh)
Inventor
徐涛明
Original Assignee
上海联明机械股份有限公司
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Filing date
Publication date
Application filed by 上海联明机械股份有限公司 filed Critical 上海联明机械股份有限公司
Priority to CN2010201255058U priority Critical patent/CN201684829U/en
Application granted granted Critical
Publication of CN201684829U publication Critical patent/CN201684829U/en

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Abstract

The utility model relates to a mould for precise punching, comprising a mould upper pressing material, a mould lower pressing material, a material pressing plate, a transitional pressing plate, a transitional top rod, a concave die and a convex die. The mould is characterized in that the mould upper pressing material and the mould lower pressing material both adopt nitrogen springs, and the material pressing plate is provided with an inverted V-shaped gear ring. The mould has the advantages of low production cost and high efficiency and saves the investment of a precise punching machine tool, the manufactured part has high size precision, low surface roughness and good section quality, and the mould reduces the production and manufacturing cost of the product and improves the production efficiency and the product quality.

Description

A kind of mould that is used for fine-edge blanking
Technical field
The utility model relates to die for manufacturing, particularly a kind ofly can be mainly used in the realization fine-edge blanking at automobile and the widely used mould that is used for fine-edge blanking of mechanical industry.
Background technology
Stamping-out is the production method of a kind of high-efficiency and low-cost in the modern production, especially is extensive use of in automobile manufacture industry, and the shared proportion of blanking part is high more in the auto parts, can cause the automobile making cost to descend more.Yet the machining accuracy that general stamping-out can reach is lower, therefore has to adopt machining to reach desired precision for some parts.In recent years along with the improving constantly of stamping-out technology, replace machining to become a reality with the method for fine-edge blanking, the fine-edge blanking spare in the stamping parts of automobile is more and more.Yet existing fine-edge blanking mould costs an arm and a leg, and has increased the cost of enterprise, and the technical problems to be solved in the utility model provides a kind of mould that can be used for fine-edge blanking of cheap, function admirable.
Existing common die is when carrying out stamping-out, and its shear surface euphotic belt partly is to shear to produce, and remainder is the back separation that stretches, so shear surface has only the part euphotic belt, and the angle of collapsing is bigger; If requiring shear surface all is euphotic belt, just must allow the whole stamping-out process all be the pure shear state, this phenomenon that just requires to have material to move produces.And existing common die in use regular meeting the phenomenon that material moves appears, not only influenced the precision of stamping-out, also influenced the effect of shear surface euphotic belt.
In addition, in the stamping-out process, pressure-pad-force and counter-pressure are the smart key factors towards part quality and die life of influence.Pressure-pad-force can prevent that greatly material beyond the detrusion district from the flowing of punch, making material remain vertical with the stamping-out direction and not perk; Pressure-pad-force is little, does not then have the effect that prevents that material from flowing, and reduces smart in the part cross section quality.And pressure-pad-force is too little, can increase cutting edge of die stress on every side, makes cutting edge of die partly produce distortion, and fragile mould simultaneously, also increases forcing press load.Therefore, providing constant pressure-pad-force is the key that realizes fine-edge blanking.Meanwhile, the affects essence of counter-pressure is towards dimensional accuracy, the flatness of part, collapse angle and part total quality, increase counter-pressure and can improve above-mentioned quality index, but counter-pressure crosses conference and increases punch stress, reduces punch service life.Therefore, in the fine-edge blanking process, need provide stable counter-pressure.But because the binder that present common die uses mostly is spring or rubber, the elastic pressure of Chan Shenging can increase with the increase of stroke in the course of the work, is difficult to satisfy above-mentioned pressure-pad-force and the stable requirement of counter-pressure.
The utility model content
The purpose of this utility model provides a kind of mould that is used for fine-edge blanking, and this device can prevent that in the stamping-out process material from moving, and stable pressure-pad-force and counter-pressure is provided, and then realizes the purpose of fine-edge blanking.
For realizing above-mentioned purpose, the technical scheme that the utility model adopted is:
A kind of mould that is used for fine-edge blanking, comprise binder under binder on the mould, the mould, holding pad, transition press plate, transition push rod and die, punch, it is characterized in that: on the described mould under binder and the described mould binder all adopt nitrogen spring, described holding pad is provided with the inverted V-shaped gear ring.
The beneficial effects of the utility model are: owing to binder under binder on the described mould and the described mould all adopts nitrogen spring, and the nitrogen spring volume is little, the pressure that produces is big, elastic force pressure is easy to adjust, and the elastic pressure kept stable of Chan Shenging in the course of the work, therefore can be good at satisfying the fine-edge blanking technical process for pressure-pad-force and the stable requirement of counter-pressure, play and improve essence, the effect that prolongs die life towards the part quality.
Simultaneously because described holding pad is provided with the inverted V-shaped gear ring, can holding pad be pressed on material on the die by the pressure that binder under the mould produces like this, thereby the inner face at the inverted V-shaped tooth of holding pad produces cross side pressure, and then to stop material in the shear zone, to tear lateral flow with metal, prevent that material from moving, realize the purpose of fine-edge blanking.
The utility model production cost is low, the efficient height, and the investment of having saved smart impact machine bed, and parts size precision height, the surface roughness value made are low, cross section quality is good, has reduced the production manufacturing cost, has improved production efficiency and product quality.
Description of drawings
Fig. 1 is a structural representation of the present utility model.
Fig. 2 is the structural representation of holding pad of the present utility model
1, binder on the mould, 2, transition press plate, 3, the transition push rod, 4, raw material, 5, holding pad, 6, binder under the mould, 7, punch, 8, die, 9, the inverted V-shaped gear ring.
The specific embodiment
A kind of mould that is used for fine-edge blanking, comprise binder 1 on the mould, binder 6 under the mould, holding pad 5, transition press plate 2, transition push rod 3 and die 8, punch 7, binder 6 has been selected the nitrogen spring of 3 25 ton forces for use under the described mould, binder 1 has been selected the nitrogen spring of 1 25 ton force for use on the described mould, realize binder by described transition press plate 2 and transition push rod 3, described holding pad 5 is provided with reverse V-shaped gear ring 9, the pressure that produces by binder under the mould 6 during use makes inverted V-shaped gear ring 9 that raw material 4 are pressed on the die 8, thereby the inner face at inverted V-shaped tooth 9 produces cross side pressure, stoping described raw material 4 in the shear zone, to tear lateral flow with metal, thereby realize the purpose of this utility model.

Claims (1)

1. mould that is used for fine-edge blanking, comprise binder under binder on the mould, the mould, holding pad, transition press plate, transition push rod and die, punch, it is characterized in that: on the described mould under binder and the described mould binder all adopt nitrogen spring, described holding pad is provided with the inverted V-shaped gear ring.
CN2010201255058U 2010-03-09 2010-03-09 Mould for precise punching CN201684829U (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
CN2010201255058U CN201684829U (en) 2010-03-09 2010-03-09 Mould for precise punching

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
CN2010201255058U CN201684829U (en) 2010-03-09 2010-03-09 Mould for precise punching

Publications (1)

Publication Number Publication Date
CN201684829U true CN201684829U (en) 2010-12-29

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Family Applications (1)

Application Number Title Priority Date Filing Date
CN2010201255058U CN201684829U (en) 2010-03-09 2010-03-09 Mould for precise punching

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Country Link
CN (1) CN201684829U (en)

Cited By (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN102806264A (en) * 2012-08-09 2012-12-05 河南星光机械制造有限公司 Two-way fine stamping die and two-way fine stamping part processing method
CN103341560A (en) * 2013-07-18 2013-10-09 安徽江淮汽车股份有限公司 Pressing device of stamping die
CN104959447A (en) * 2015-07-14 2015-10-07 武汉理工大学 Unbalanced load active balance precise stamping die structure
CN106040869A (en) * 2016-07-28 2016-10-26 太仓安路驰汽车部件有限公司 Shaving die waste separating device
CN107138603A (en) * 2017-06-29 2017-09-08 奇瑞汽车股份有限公司 Hydraulic pressure side blow aperture apparatus
CN108480456A (en) * 2018-06-01 2018-09-04 苏州古柏利电子科技有限公司 A kind of blanking die for being punched round pie plate
CN110170566A (en) * 2019-05-05 2019-08-27 中国北方车辆研究所 A kind of multiple tooth precise structure press forming die of high-strength steel thin slice and method

Cited By (10)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN102806264A (en) * 2012-08-09 2012-12-05 河南星光机械制造有限公司 Two-way fine stamping die and two-way fine stamping part processing method
CN102806264B (en) * 2012-08-09 2015-01-14 河南星光机械制造有限公司 Two-way fine stamping die and two-way fine stamping part processing method
CN103341560A (en) * 2013-07-18 2013-10-09 安徽江淮汽车股份有限公司 Pressing device of stamping die
CN103341560B (en) * 2013-07-18 2015-08-05 安徽江淮汽车股份有限公司 A kind of material pressing device of diel
CN104959447A (en) * 2015-07-14 2015-10-07 武汉理工大学 Unbalanced load active balance precise stamping die structure
CN106040869A (en) * 2016-07-28 2016-10-26 太仓安路驰汽车部件有限公司 Shaving die waste separating device
CN107138603A (en) * 2017-06-29 2017-09-08 奇瑞汽车股份有限公司 Hydraulic pressure side blow aperture apparatus
CN107138603B (en) * 2017-06-29 2019-12-03 奇瑞汽车股份有限公司 Hydraulic side blow aperture apparatus
CN108480456A (en) * 2018-06-01 2018-09-04 苏州古柏利电子科技有限公司 A kind of blanking die for being punched round pie plate
CN110170566A (en) * 2019-05-05 2019-08-27 中国北方车辆研究所 A kind of multiple tooth precise structure press forming die of high-strength steel thin slice and method

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Granted publication date: 20101229

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