CN105750405A - Sheet blanking and punching mold and manufacturing method thereof - Google Patents

Sheet blanking and punching mold and manufacturing method thereof Download PDF

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Publication number
CN105750405A
CN105750405A CN201610286566.4A CN201610286566A CN105750405A CN 105750405 A CN105750405 A CN 105750405A CN 201610286566 A CN201610286566 A CN 201610286566A CN 105750405 A CN105750405 A CN 105750405A
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CN
China
Prior art keywords
die
punch
blanking
piercing
thin plate
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Granted
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CN201610286566.4A
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Chinese (zh)
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CN105750405B (en
Inventor
郜云峰
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Hebei Huashu New Energy Automobile Technology Co., Ltd
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Xinhe Huaxing Machinery Manufacturing Co Ltd
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Priority to CN201610286566.4A priority Critical patent/CN105750405B/en
Publication of CN105750405A publication Critical patent/CN105750405A/en
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Publication of CN105750405B publication Critical patent/CN105750405B/en
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    • BPERFORMING OPERATIONS; TRANSPORTING
    • B21MECHANICAL METAL-WORKING WITHOUT ESSENTIALLY REMOVING MATERIAL; PUNCHING METAL
    • B21DWORKING OR PROCESSING OF SHEET METAL OR METAL TUBES, RODS OR PROFILES WITHOUT ESSENTIALLY REMOVING MATERIAL; PUNCHING METAL
    • B21D28/00Shaping by press-cutting; Perforating
    • B21D28/24Perforating, i.e. punching holes
    • B21D28/34Perforating tools; Die holders
    • BPERFORMING OPERATIONS; TRANSPORTING
    • B21MECHANICAL METAL-WORKING WITHOUT ESSENTIALLY REMOVING MATERIAL; PUNCHING METAL
    • B21DWORKING OR PROCESSING OF SHEET METAL OR METAL TUBES, RODS OR PROFILES WITHOUT ESSENTIALLY REMOVING MATERIAL; PUNCHING METAL
    • B21D37/00Tools as parts of machines covered by this subclass
    • B21D37/20Making tools by operations not covered by a single other subclass

Abstract

The invention provides a sheet blanking and punching mold which comprises a blanking concave mold, a punching convex mold, a concave-convex mold, an ejector and a convex mold fixing plate, wherein the top end of the punching convex mold is fixedly arranged on the convex mold fixing plate; the bottom end of the punching convex mold is matched with a groove inside the concave-convex mold; the top end of the blanking concave mold is fixedly arranged on the convex mold fixing plate; an inner side edge of the blanking concave mold is matched with an outer side edge of the concave-convex mold; the ejector sleeves the punching convex mold and in the blanking concave mold, and can slide in the blanking concave mold in a length direction of the punching convex mold. The invention further provides a manufacturing method of the sheet blanking and punching mold. With adoption of the sheet blanking and punching mold and the manufacturing method, the sheet blanking and punching mold is simple in structure; a blanking clearance is ensured to be a zero clearance through an accurate cutting edge dimension, a heat treatment mode and a field process mode, so that high-precision stamping parts can be obtained through punching with the sheet blanking and punching mold, and the cutter abrasion phenomenon on the cutting edge can be avoided.

Description

Thin plate blanking and piercing die and its manufacture method
Technical field
The present invention relates to die technique field, particularly relate to thin plate blanking and piercing die and its manufacture method.
Background technology
nullThe production process of punch die is by casting from raw material、The processing methods such as forging and machining are processed into the die detail required by detail of design,According still further to design and processes technology requirement,Die detail is assembled into the overall process of mould,The blanking die of prior art is due to the trueness error of processing and assembling,Cause the blade clearance that cannot ensure requirement in blanking process,Thin plate especially for 0.05-0.8mm,Owing to the one side gap of blanking and piercing die zero stamping-out is generally 5%~10% that material is thick,Thus blade clearance should be 0.025~0.08mm,Blade clearance between the cutting edge parts of conventional blanking die is typically all outside forcing press and processes,Then manage on forcing press, gap to be adjusted uniformly,But this method is when being applied to thin plate,The precision of Yi Fashengyin knife edge clearance not or knife edge clearance to partially gnawing cutter,Thus affecting stamping-out quality and reducing service life of equipment.
Summary of the invention
In order to solve the problems referred to above, the invention provides a kind of thin plate blanking and piercing die, its objective is to provide the mould of a kind of thin plate stamping-out suitable in 0.05-0.8mm, and improve its machining accuracy.
For achieving the above object, the present invention provides techniques below scheme:
The invention provides a kind of thin plate blanking and piercing die, including: blanking die, piercing punch, punch-die, ejector and punch retainer, the top of described piercing punch is fixedly installed on described punch retainer, bottom and the groove fit within described punch-die, described blanking die top is fixedly installed on described punch retainer, and the inner side of described blanking die along with the outside of described punch-die along matching, described ejector is sheathed on described piercing punch, in described blanking die, and can slide in described blanking die along the length direction of described piercing punch, described punch-die be arranged at described ejector positive downside and and described ejector between there is the gap placing plate.
Further, the center of described punch retainer is provided with through hole, and described piercing punch stretches in described punch retainer by described through hole and fixes with described punch retainer and is connected.
Further, the inner surface of the outer surface of described ejector and described blanking die fits, and the outer surface of described ejector is provided with projection, and the inner surface of described blanking die is provided with the depression matched with described projection.
Further, described projection is provided with the first gradient along pressing direction, and described depression is provided with the second gradient along pressing direction, and described first gradient is identical with the inclination angle of described second gradient.
Further, the bottom shape of described ejector is identical with the top shape of described punch-die.
Further, the gap between described punch-die and described ejector is 0.05-0.8mm.
Further, described blanking die and described piercing punch are made by Steel material.
The present invention also provides for the manufacture method of a kind of thin plate blanking and piercing die, including:
S1: described blanking die and described piercing punch are all carried out Quenching Treatment, and the cutting edge position of described blanking die and described piercing punch carries out linear cutter;
S2: described thin plate blanking and piercing die is fixedly installed on forcing press and positions;
S3: behind location, the centrage of the centrage of described piercing punch with described punch-die is alignd;
S4: by forcing press backhaul, the outer surface of described punch-die is polished flat along its short transverse;
S5: forcing press is descending so that described blanking die and described piercing punch all with described punch-die generation relative motion, and then by the excess stock stamping-out at the cutting edge position on described punch-die.
Further, in step s 4, by the cutting edge position manual expression of described punch-die, the Blade dimensions of described punch-die is made to extend to the direction that entity increases.
The invention provides a kind of thin plate blanking and piercing die and its manufacture method, it has the beneficial effects that: mould structure is simple, ensure that blade clearance is zero clearance by Blade dimensions accurately and heat treatment mode and site technique mode, such that it is able to be punched out, by above-mentioned thin plate blanking and piercing die, the stamping parts that precision is higher, and the edge of a knife will not be occurred to gnaw cutter.
Accompanying drawing explanation
Fig. 1 is the cross-sectional schematic of denomination of invention provided by the invention;
In figure: 1, blanking die;2, piercing punch;3, punch-die;4, ejector;5, punch retainer;51, through hole;41, protruding;11, depression.
Detailed description of the invention
Below in conjunction with the drawings and specific embodiments, the present invention is described in further details:
nullAccording to Fig. 1,The invention provides a kind of thin plate blanking and piercing die,Including: blanking die 1、Piercing punch 2、Punch-die 3、Ejector 4 and punch retainer 5,The top of described piercing punch 2 is fixedly installed on described punch retainer 5,Bottom and the groove fit within described punch-die 3,Described blanking die 1 top is fixedly installed on described punch retainer 5,And the inner side of described blanking die 1 along with the outside of described punch-die 3 along matching,Described ejector 4 is sheathed on described piercing punch 2、In described blanking die 1,And can slide in described blanking die 1 along the length direction of described piercing punch 2,Described punch-die 3 be arranged at described ejector 4 positive downside and and described ejector 4 between there is the gap placing plate,Pass through said structure,Plate is positioned on described punch-die 3,By the effect of forcing press, described blanking die 1 and described piercing punch 2 are moved downward,And there is relative motion with described punch-die 3,Sheet metal blanking is completed,In order to make above-mentioned punching press carry out smoothly,Opening can be provided with at the middle part of described punch-die 3,Described piercing punch 2 can be stretched in opening bottom when punching press,Thus ensureing being smoothed out of punching.
In optional a kind of embodiment, the center of described punch retainer 5 is provided with through hole 51, described piercing punch 2 stretches in described punch retainer 5 by described through hole 51 and fixes with described punch retainer 5 and is connected, by said structure mode, it is possible to make described piercing punch 2 be rigidly secured together with described punch retainer 5.
nullPreferably,The inner surface of the outer surface of described ejector 4 and described blanking die 1 fits,The outer surface of described ejector 4 is provided with protruding 41,The inner surface of described blanking die 1 is provided with and described protruding 41 depressions 11 matched,Described protruding 41 are provided with the first gradient along pressing direction,Described depression 11 is provided with the second gradient along pressing direction,Described first gradient is identical with the inclination angle of described second gradient,By the design of said structure,Described ejector 4 can be had certain spacing in the direction of punching press,Before carrying out punching press,At pressing direction, there is certain distance between described protruding 41 and the described depression 11 of described blanking die 1 on described ejector 4,When carrying out punching operation,Described protruding 41 and described depression 11 close to each other along pressing direction,Described first gradient on described protruding 41 is identical with the inclination angle of described second gradient in described depression 11,Can so that in punching operation process,Realize described protruding 41 and described depression 11 fitting tightly along pressing direction,The inclination angle of described first gradient and described second gradient can be 45° angle.
Preferably, the bottom shape of described ejector 4 is identical with the top shape of described punch-die 3, owing to the inner surface of blanking die 1 and the outer surface of ejector 4 fit tightly, therefore when carrying out punching operation, the inner surface of described blanking die 1 can be fitted with the outer surface of described punch-die 3 completely, thus realizing the zero clearance stamping-out of the edge of a knife.
Preferably, the gap between described punch-die 3 and described ejector 4 is 0.05-0.8mm, so that be positioned between described ejector 4 and described punch-die 3 by the thin plate material of 0.05-0.8mm.
Preferably, described blanking die 1 is made by Steel material with described piercing punch 2, and Steel material has higher intensity and hardness, it is possible to meet the demand of stamping-out.
Thin plate blanking and piercing die provided by the invention compared with blanking die of the prior art, the blade clearance design principle of blanking die of the prior art be the gap of blanking with described blanking die 1 for benchmark, its gap is arranged on blanking punch;The gap of punching is designed with described piercing punch 2 for benchmark, its gap is arranged on the cutting edge of die of punching, the structure with certain interval is so adopted to be stamped part when punching press due to the effect dimensional discrepancy that easily appearance is bigger of elastic deformation, and thin plate blanking and piercing die provided by the invention is owing to adopting the design of zero clearance, can ensure that the dimensional accuracy of the part that is stamped, especially in the thin plate of 0.05-0.8mm, its effect becomes apparent from.
The manufacture method of above-mentioned thin plate blanking and piercing die is as follows:
1, described blanking die 1 and described piercing punch 2 all being carried out Quenching Treatment, the cutting edge position of described blanking die 1 and described piercing punch 2 carries out linear cutter;
2, described thin plate blanking and piercing die is fixedly installed on forcing press and positions;
3, behind location, the centrage of described piercing punch 2 is alignd with the centrage of described punch-die 3;
4, by forcing press backhaul, the outer surface of described punch-die 3 is polished flat along its short transverse;
5, forcing press is descending so that relative motion all occurs with described punch-die 3 for described blanking die 1 and described piercing punch 2, and then by the excess stock stamping-out at the cutting edge position on described punch-die 3.
By blanking die 1 and piercing punch 2 are carried out Quenching Treatment, can so that described blanking die 1 and described piercing punch 2 improve its rigidity, hardness, wearability, fatigue strength and toughness etc., and described punch-die 3 can be designed as non-quenching part, compare relatively simple so that the processing step of mould provided by the invention all to carry out Quenching Treatment relative to mold parts of the prior art.
In the manufacture method of thin plate blanking and piercing die provided by the invention, owing to passing through under the matched moulds and die opening state of forcing press when making above-mentioned mould, the blanking die of zero blade clearance is obtained with the cutter block of the described blanking die 1 of quenching and the die-cut non-quenching of described piercing punch 2, the blade clearance that ensure that during matched moulds between the edge of a knife is zero, so that add be not susceptible to gnaw cutter man-hour carrying out sheet metal blanking, and the qualification rate of stamping products is higher.
Preferably, in step 4, by the cutting edge position manual expression of described punch-die 3, the Blade dimensions making described punch-die 3 extends to the direction that entity increases, certainly, on above-mentioned forcing press, matched moulds to knife edge clearance, processes by the mode of extruding in the production method of the material surplus making knife edge clearance and with built-up welding or the processing mode of similar increase soft material such as stockpile and substitute, but the mode of extruding can also be adopted more convenient compared to above-mentioned several ways in advance.
The above; it is only presently preferred embodiments of the present invention; not in order to limit the present invention, every any trickle amendment, equivalent replacement and improvement above example made according to the technical spirit of the present invention, should be included within the protection domain of technical solution of the present invention.

Claims (9)

1. a thin plate blanking and piercing die, it is characterized in that, including: blanking die, piercing punch, punch-die, ejector and punch retainer, the top of described piercing punch is fixedly installed on described punch retainer, bottom and the groove fit within described punch-die, described blanking die top is fixedly installed on described punch retainer, and the inner side of described blanking die along with the outside of described punch-die along matching, described ejector is sheathed on described piercing punch, in described blanking die, and can slide in described blanking die along the length direction of described piercing punch, described punch-die be arranged at described ejector positive downside and and described ejector between there is the gap placing plate.
2. thin plate blanking and piercing die according to claim 1, it is characterised in that the center of described punch retainer is provided with through hole, described piercing punch stretches in described punch retainer by described through hole and fixes with described punch retainer and is connected.
3. thin plate blanking and piercing die according to claim 1, it is characterized in that, the inner surface of the outer surface of described ejector and described blanking die fits, and the outer surface of described ejector is provided with projection, and the inner surface of described blanking die is provided with the depression matched with described projection.
4. thin plate blanking and piercing die according to claim 3, it is characterised in that described projection is provided with the first gradient along pressing direction, described depression is provided with the second gradient along pressing direction, and described first gradient is identical with the inclination angle of described second gradient.
5. thin plate blanking and piercing die according to claim 1, it is characterised in that the bottom shape of described ejector is identical with the top shape of described punch-die.
6. thin plate blanking and piercing die according to claim 1, it is characterised in that the gap between described punch-die and described ejector is 0.05-0.8mm.
7. thin plate blanking and piercing die according to claim 1, it is characterised in that described blanking die and described piercing punch are made by Steel material.
8. the manufacture method of the thin plate blanking and piercing die described in an any one of claim 1-7, it is characterised in that comprise the following steps:
S1: described blanking die and described piercing punch are all carried out Quenching Treatment, and the cutting edge position of described blanking die and described piercing punch carries out linear cutter;
S2: described thin plate blanking and piercing die is fixedly installed on forcing press and positions;
S3: behind location, the centrage of the centrage of described piercing punch with described punch-die is alignd;
S4: by forcing press backhaul, the outer surface of described punch-die is polished flat along its short transverse;
S5: forcing press is descending so that described blanking die and described piercing punch all with described punch-die generation relative motion, and then by the excess stock stamping-out at the cutting edge position on described punch-die.
9. the manufacture method of thin plate blanking and piercing die according to claim 8, it is characterised in that in step s 4, by the cutting edge position manual expression of described punch-die, makes the Blade dimensions of described punch-die extend to the direction that entity increases.
CN201610286566.4A 2016-05-03 2016-05-03 Thin plate blanking and piercing die and its production method Active CN105750405B (en)

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Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN110479854A (en) * 2019-09-26 2019-11-22 贵阳白云中航紧固件有限公司 A kind of thin-walled chain blanking and piercing die

Citations (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN102672061A (en) * 2012-04-28 2012-09-19 重庆市江津区宏盛机械制造有限公司 Punch machining process
CN203304417U (en) * 2013-06-26 2013-11-27 查福度 Flip-over type piercing and blanking die
CN105268825A (en) * 2014-06-28 2016-01-27 王金鹤 Novel punching composite die device
CN205110533U (en) * 2015-10-28 2016-03-30 顾旭东 Stamping die
CN205146996U (en) * 2015-11-11 2016-04-13 重庆骏翔机电技术有限责任公司 A blanking -punching die for processing oil pipe backplate installing support
CN205165557U (en) * 2015-11-03 2016-04-20 农非 Compound mould of blanking that punches a hole

Patent Citations (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN102672061A (en) * 2012-04-28 2012-09-19 重庆市江津区宏盛机械制造有限公司 Punch machining process
CN203304417U (en) * 2013-06-26 2013-11-27 查福度 Flip-over type piercing and blanking die
CN105268825A (en) * 2014-06-28 2016-01-27 王金鹤 Novel punching composite die device
CN205110533U (en) * 2015-10-28 2016-03-30 顾旭东 Stamping die
CN205165557U (en) * 2015-11-03 2016-04-20 农非 Compound mould of blanking that punches a hole
CN205146996U (en) * 2015-11-11 2016-04-13 重庆骏翔机电技术有限责任公司 A blanking -punching die for processing oil pipe backplate installing support

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN110479854A (en) * 2019-09-26 2019-11-22 贵阳白云中航紧固件有限公司 A kind of thin-walled chain blanking and piercing die

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Effective date of registration: 20191204

Address after: 054000 north of Shidai Road, Xinhe County, Xingtai City, Hebei Province, east of Xiongfei pile driver

Patentee after: Hebei Huashu New Energy Automobile Technology Co., Ltd

Address before: 054000, No. 5, North Ring Road, New River County, Xingtai, Hebei

Patentee before: XINHE HUAXING MACHINERY MANUFACTURING CO., LTD.

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