CN105750405B - Thin plate blanking and piercing die and its production method - Google Patents
Thin plate blanking and piercing die and its production method Download PDFInfo
- Publication number
- CN105750405B CN105750405B CN201610286566.4A CN201610286566A CN105750405B CN 105750405 B CN105750405 B CN 105750405B CN 201610286566 A CN201610286566 A CN 201610286566A CN 105750405 B CN105750405 B CN 105750405B
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- Prior art keywords
- die
- punch
- piercing
- blanking
- thin plate
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Classifications
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B21—MECHANICAL METAL-WORKING WITHOUT ESSENTIALLY REMOVING MATERIAL; PUNCHING METAL
- B21D—WORKING OR PROCESSING OF SHEET METAL OR METAL TUBES, RODS OR PROFILES WITHOUT ESSENTIALLY REMOVING MATERIAL; PUNCHING METAL
- B21D28/00—Shaping by press-cutting; Perforating
- B21D28/24—Perforating, i.e. punching holes
- B21D28/34—Perforating tools; Die holders
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B21—MECHANICAL METAL-WORKING WITHOUT ESSENTIALLY REMOVING MATERIAL; PUNCHING METAL
- B21D—WORKING OR PROCESSING OF SHEET METAL OR METAL TUBES, RODS OR PROFILES WITHOUT ESSENTIALLY REMOVING MATERIAL; PUNCHING METAL
- B21D37/00—Tools as parts of machines covered by this subclass
- B21D37/20—Making tools by operations not covered by a single other subclass
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- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Punching Or Piercing (AREA)
Abstract
The present invention provides a kind of thin plate blanking and piercing dies, including：Blanking die,Piercing punch,Punch-die,Ejector and punch retainer,The top of piercing punch is fixedly installed on punch retainer,Bottom end coordinates with the groove inside punch-die,Blanking die top is fixedly installed on punch retainer,And the inside of blanking die is matched along with the outside of punch-die edge,Ejector is sheathed on piercing punch,In blanking die,And it can be slided in blanking die along the length direction of piercing punch,The present invention also provides a kind of production methods of thin plate blanking and piercing die,Using thin plate blanking and piercing die provided by the invention and its production method,So that mould structure is simple,It ensure that blade clearance is zero clearance by accurate Blade dimensions and heat treatment mode and site technique mode,So as to be punched out the higher stamping parts of precision by above-mentioned thin plate blanking and piercing die,And the edge of a knife will not occur and gnaw knife.
Description
Technical field
The present invention relates to die technique field more particularly to thin plate blanking and piercing die and its production methods.
Background technology
The production process of punch die is to be processed into design drawing from raw material by processing methods such as casting, forging and machinings
Die detail is assembled into the overall process of mold by the die detail required by sample according still further to the requirement of design and processes technology, existing
The blanking die of technology is due to the trueness error processing and assemble, between the punching for leading to can not to ensure in blanking process requirement
Gap, especially for the thin plate of 0.05-0.8mm, due to the single side gap that blanking and piercing die zero is punched be generally expect it is thick by 5%~
10%, thus blade clearance should be 0.025~0.08mm, the blade clearance between the cutting edge component of conventional blanking die is generally all
It is to be processed outside forcing press, then tries on forcing press that gap tune is uniform, but this method is when applied to thin plate, Yi Fa
It is raw to gnaw knife because the precision of knife edge clearance is inadequate or knife edge clearance is to inclined, to influence to be punched quality and reduce equipment to use
Service life.
Invention content
To solve the above-mentioned problems, the present invention provides a kind of thin plate blanking and piercing dies, and the purpose is to provide a kind of be applicable in
In the mold that the thin plate of 0.05-0.8mm is punched, and improve its machining accuracy.
To achieve the above object, the present invention provides following technical scheme：
The present invention provides a kind of thin plate blanking and piercing dies, including：Blanking die, piercing punch, punch-die, ejector and
The top of punch retainer, the piercing punch is fixedly installed on the punch retainer, inside bottom end and the punch-die
Groove cooperation, the blanking die top is fixedly installed on the punch retainer, and the inside edge of the blanking die
With the outside of the punch-die along matching, the ejector is sheathed on the piercing punch, in the blanking die, and energy
Enough length directions along the piercing punch slide in the blanking die, and the punch-die is being set to the ejector just
Downside simultaneously has the gap for placing plate between the ejector.
Further, through-hole is equipped at the center of the punch retainer, the piercing punch is stretched by the through-hole
It is fixedly connected in the punch retainer and with the punch retainer.
Further, the outer surface of the ejector and the inner surface of the blanking die fit, the head part
The outer surface of device is equipped with protrusion, and the inner surface of the blanking die is equipped with and the matched recess of protrusion.
Further, the protrusion is equipped with the first gradient along pressing direction, and the recess is equipped with second tiltedly along pressing direction
Degree, first gradient are identical as the inclination angle of the second gradient.
Further, the bottom shape of the ejector is identical as the top shape of the punch-die.
Further, the gap between the punch-die and the ejector is 0.05-0.8mm.
Further, the blanking die is made with the piercing punch of Steel material.
The present invention also provides a kind of production methods of thin plate blanking and piercing die, including：
S1：The blanking die and the piercing punch are subjected to quenching treatment, the blanking die and the punching
The cutting edge position of punch-pin carries out linear cutter；
S2：The thin plate blanking and piercing die is fixedly installed on forcing press and is positioned；
S3：The center line of the piercing punch is aligned with the center line of the punch-die after positioning；
S4：By forcing press backhaul, the outer surface of the punch-die is polished flat along its short transverse；
S5：Forcing press downlink so that opposite fortune occurs with the punch-die for the blanking die and the piercing punch
It is dynamic, and then the excess stock at the cutting edge position on the punch-die is punched.
Further, in step s 4, by the cutting edge position manual expression of the punch-die, make the cutting edge of the punch-die
Size extends to the increased direction of entity.
The present invention provides a kind of thin plate blanking and piercing die and its production method, advantage is：Mould structure letter
It is single, it ensure that blade clearance is zero clearance by accurate Blade dimensions and heat treatment mode and site technique mode, so as to
To be punched out the higher stamping parts of precision by above-mentioned thin plate blanking and piercing die, and the edge of a knife will not occur and gnaw knife.
Description of the drawings
Fig. 1 is the schematic cross-sectional view 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、
Protrusion；11, it is recessed.
Specific implementation mode
The present invention is described in further details in the following with reference to the drawings and specific embodiments：
According to Fig. 1, the present invention provides a kind of thin plate blanking and piercing dies, including：Blanking die 1, piercing punch 2, convex-concave
The top of mould 3, ejector 4 and punch retainer 5, the piercing punch 2 is fixedly installed on the punch retainer 5, bottom end
Coordinate with the groove inside the punch-die 3,1 top of the blanking die is fixedly installed on the punch retainer 5, and institute
The inside of blanking die 1 is stated along, along matching, the ejector 4 is sheathed on the piercing punch 2 with the outside of the punch-die 3
In upper, the described blanking die 1, and can be described along length direction sliding in the blanking die 1 of the piercing punch 2
Punch-die 3 is set to the positive downside of the ejector 4 and has the gap for placing plate between the ejector 4, by upper
Structure is stated, plate is positioned on the punch-die 3, the blanking die 1 and the punching are made by the effect of forcing press
Punch-pin 2 moves downward, and relative motion occurs with the punch-die 3 so that sheet metal blanking is completed, in order to keep above-mentioned punching press smooth
Progress, can the middle part of the punch-die 3 be equipped with opening so that the piercing punch 2 can be stretched into punching press with bottom
In opening, to ensure being smoothed out for punching.
In a kind of optional embodiment, through-hole 51, the piercing punch 2 are equipped at the center of the punch retainer 5
It is stretched into the punch retainer 5 by the through-hole 51 and is fixedly connected with the punch retainer 5, by above structure side
Formula can make the piercing punch 2 be rigidly secured together with the punch retainer 5.
Preferably, the outer surface of the ejector 4 and the inner surface of the blanking die 1 fit, the head part
The outer surface of device 4 is equipped with protrusion 41, the inner surface of the blanking die 1 be equipped with it is described raised 41 matched recessed
It falling into 11, described raised 41 and is equipped with the first gradient along pressing direction, the recess 11 is equipped with the second gradient along pressing direction, and described the
One gradient is identical as the inclination angle of the second gradient, passes through the design of above structure so that the ejector 4 can be in punching press
There is certain limit in direction, before carrying out punching press, the institute of described raised 41 and the blanking die 1 on the ejector 4
State recess 11 between pressing direction have a certain distance, when carrying out punching operation, described raised 41 and it is described be recessed 11
Close to each other along pressing direction, first gradient on described raised 41 and second gradient in the recess 11 are inclined
Angle is identical, can make during punching operation, and realization described raised 41 and the recess 11 are close on pressing direction
The inclination angle of fitting, first gradient and second gradient can be 45° angle.
Preferably, the bottom shape of the ejector 4 is identical as the top shape of the punch-die 3, due to blanking die 1
The outer surface of inner surface and ejector 4 fit closely, therefore when carrying out punching operation, the inside of the blanking die 1
Surface can be bonded with the outer surface of the punch-die 3 completely, to realize the zero clearance punching of the edge of a knife.
Preferably, the gap between the punch-die 3 and the ejector 4 is 0.05-0.8mm, so that will
The thin plate material of 0.05-0.8mm is positioned between the ejector 4 and the punch-die 3.
Preferably, the blanking die 1 is made with the piercing punch 2 of Steel material, and Steel material has higher strong
Degree and hardness, can meet the needs of punching.
Thin plate blanking and piercing die provided by the invention is compared with blanking die in the prior art, punching in the prior art
The blade clearance design principle of mold is the gap of blanking on the basis of the blanking die 1, and gap setting is in blanking punch
On；The gap of punching is designed on the basis of the piercing punch 2, and gap setting uses in this way on the cutting edge of die of punching
Have the function of that the structure of certain interval is stamped the part dimensional discrepancy larger since flexible deformation is susceptible in punching press, and
Thin plate blanking and piercing die provided by the invention is due to the design using zero clearance, it is ensured that the dimensional accuracy for the part that is stamped, especially
It is directed to the thin plate of 0.05-0.8mm, and effect is more obvious.
The production method of above-mentioned thin plate blanking and piercing die is as follows：
1, the blanking die 1 and the piercing punch 2 are subjected to quenching treatment, the blanking die 1 and the punching
The cutting edge position of hole punch-pin 2 carries out linear cutter；
2, the thin plate blanking and piercing die is fixedly installed on forcing press and is positioned；
3, the center line of the piercing punch 2 is aligned with the center line of the punch-die 3 after positioning；
4, by forcing press backhaul, the outer surface of the punch-die 3 is polished flat along its short transverse；
5, forcing press downlink so that the blanking die 1 and the piercing punch 2 occur with the punch-die 3 relatively
Movement, and then the excess stock at the cutting edge position on the punch-die 3 is punched.
By the way that blanking die 1 and piercing punch 2 are carried out quenching treatment, it can make the blanking die 1 and the punching
Hole punch-pin 2 improves its rigidity, hardness, wearability, fatigue strength and toughness etc., and the punch-die 3 can be designed as non-quench
Fiery part so that the processing step of mold provided by the invention compared with the existing technology in mold parts all to carry out
Quenching treatment is compared to relatively simple.
In the production method of thin plate blanking and piercing die provided by the invention, due to when making above-mentioned mold by pressure
Under the molding of machine and die opening state, the cutter block that non-quenching is punched with the blanking die 1 of quenching and the piercing punch 2 obtains
The blanking die of zero blade clearance, blade clearance when ensure that molding between the edge of a knife are zero, so that carrying out sheet metal blanking
It is not susceptible to gnaw knife when processing, and the qualification rate of stamping products is higher.
Preferably, in step 4, by the cutting edge position manual expression of the punch-die 3, make the cutting edge of the punch-die 3
Size extends to the increased direction of entity, certainly, is molded on above-mentioned forcing press to knife edge clearance, is added with the mode of extruding in advance
Work go out to make in the production method of the material surplus of knife edge clearance can also with built-up welding or stockpile etc. it is similar increase soft material plus
Work mode substitutes, but more convenient by the way of squeezing compared to above-mentioned several ways.
The above, only presently preferred embodiments of the present invention, are not intended to limit the invention, every skill according to the present invention
Art essence should be included in technical solution of the present invention to any trickle amendment, equivalent replacement and improvement made by above example
Protection domain within.
Claims (6)
1. a kind of thin plate blanking and piercing die, which is characterized in that including：Blanking die, piercing punch, punch-die, ejector and convex
The top of mould fixed plate, the piercing punch is fixedly installed on the punch retainer, inside bottom end and the punch-die
Groove coordinates, and the blanking die top is fixedly installed on the punch retainer, and the inside of the blanking die along with
Along matching, the ejector is sheathed on the piercing punch, in the blanking die, and can in the outside of the punch-die
Length direction along the piercing punch slides in the blanking die, the punch-die be set to the ejector just under
Side simultaneously has the gap for placing plate between the ejector；The outer surface of the ejector is interior with the blanking die
Side surface fits, and the outer surface of the ejector is equipped with protrusion, and the inner surface of the blanking die is equipped with and institute
State the matched recess of protrusion；The protrusion is equipped with the first gradient along pressing direction, and the recess is equipped with second along pressing direction
Gradient, first gradient are identical as the inclination angle of the second gradient；
The production method of the thin plate blanking and piercing die, includes the following steps：
S1：The blanking die and the piercing punch are subjected to quenching treatment, the blanking die and the piercing punch
Cutting edge position carry out linear cutter；
S2：The thin plate blanking and piercing die is fixedly installed on forcing press and is positioned；
S3：The center line of the piercing punch is aligned with the center line of the punch-die after positioning；
S4：By forcing press backhaul, the outer surface of the punch-die is polished flat along its short transverse；
S5：Forcing press downlink so that with the punch-die relative motion occurs for the blanking die and the piercing punch, into
And the excess stock at the cutting edge position on the punch-die is punched.
2. thin plate blanking and piercing die according to claim 1, which is characterized in that be equipped at the center of the punch retainer
Through-hole, the piercing punch are stretched into the punch retainer by the through-hole and are fixedly connected with the punch retainer.
3. thin plate blanking and piercing die according to claim 1, which is characterized in that the bottom shape of the ejector with it is described
The top shape of punch-die is identical.
4. thin plate blanking and piercing die according to claim 1, which is characterized in that between the punch-die and the ejector
Gap be 0.05-0.8mm.
5. thin plate blanking and piercing die according to claim 1, which is characterized in that the blanking die and the piercing punch
It is made of Steel material.
6. the production method of thin plate blanking and piercing die according to claim 1, which is characterized in that in step s 4, by institute
The cutting edge position manual expression for stating punch-die makes the Blade dimensions of the punch-die extend to the increased direction of entity.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201610286566.4A CN105750405B (en) | 2016-05-03 | 2016-05-03 | Thin plate blanking and piercing die and its production method |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201610286566.4A CN105750405B (en) | 2016-05-03 | 2016-05-03 | Thin plate blanking and piercing die and its production method |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN105750405A CN105750405A (en) | 2016-07-13 |
| CN105750405B true CN105750405B (en) | 2018-09-21 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201610286566.4A Active CN105750405B (en) | 2016-05-03 | 2016-05-03 | Thin plate blanking and piercing die and its production method |
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Families Citing this family (1)
| 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 |
Family Cites Families (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102672061B (en) * | 2012-04-28 | 2014-06-04 | 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 |
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| Publication number | Publication date |
|---|---|
| CN105750405A (en) | 2016-07-13 |
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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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| TR01 | Transfer of patent right |