CN105921595A - High-speed stamping female die - Google Patents
High-speed stamping female die Download PDFInfo
- Publication number
- CN105921595A CN105921595A CN201610479542.0A CN201610479542A CN105921595A CN 105921595 A CN105921595 A CN 105921595A CN 201610479542 A CN201610479542 A CN 201610479542A CN 105921595 A CN105921595 A CN 105921595A
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- CN
- China
- Prior art keywords
- die
- hole
- stamping
- annular groove
- drift
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
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Classifications
-
- 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
- B21D28/02—Punching blanks or articles with or without obtaining scrap; Notching
- B21D28/14—Dies
-
- 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
- B21D45/00—Ejecting or stripping-off devices arranged in machines or tools dealt with in this subclass
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- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Shaping Metal By Deep-Drawing, Or The Like (AREA)
- Punching Or Piercing (AREA)
- Perforating, Stamping-Out Or Severing By Means Other Than Cutting (AREA)
Abstract
The invention provides a high-speed stamping female die used for overcoming the defect that a punch and female die can be damaged easily due to tipping when sheet materials are punched at a high speed. The female die is provided with a punching through hole. An annular groove perpendicular to the axis direction of the punching through hole is formed around the inner surface of the punching through hole. The annular groove is located above the lowest point of the stroke of the punch. According to the high-speed stamping female die, the inner surface of the punching through hole is designed to be of a structure with the annular groove, a part of air can be reserved in the annular groove, the negative pressure state in the punching through hole is damaged, waste materials are effectively prevented from being brought into the female die again, and therefore the phenomenon that the waste materials get stuck to damage the punch and the female die is avoided. The tipping phenomenon happening due to the fact that the waste materials adsorb the punch to be taken back onto the working face can be effectively prevented, and accordingly tipping damage to the punch and the female die is avoided.
Description
Technical field
The present invention relates to a kind of mould that can be used for high speed stamping field, especially one and can be used for thin plate height
The high speed stamping die of speed punch process.
Background technology
In Modern Mold produces, for meeting the demand of stamping parts, often through improving drawing velocity
Realize.And add man-hour at thin plate class high speed stamping, often there is drift breakage phenomenon.Sometimes swept away
Waste material appears in press work face, causes piece surface to scratch.These situations not only mold damage but also
Have a strong impact on ram efficiency and part yield.
Summary of the invention
The technical problem to be solved in the present invention is to provide a kind of high speed stamping die, before being reduced or avoided
The problem being previously mentioned.
Specifically, the invention provides the high speed stamping die of a kind of improvement, described high speed stamping die
The defect that when can effectively overcome high speed blanking thin sheet material, drift, the easy tipping of die damage.
For solving above-mentioned technical problem, the present invention proposes a kind of high speed stamping die, is used for overcoming at a high speed
The defect that during stamping-out thin sheet material, drift, the easy tipping of die damage, described die has a stamping-out
Through hole, wherein, the inner surface around described stamping-out through hole is formed with one and is perpendicular to described stamping-out through hole
The annular groove of axis direction, described annular groove) it is positioned at above the stroke minimum point of drift.
Preferably, described stamping-out through-hole inner surface is the conical surface expanded downwards.
Preferably, the tapering of the described conical surface of described stamping-out through-hole inner surface is 2-5 degree, preferably 3 degree
Left and right.
Preferably, the width a of described annular groove is 0.2～1.0mm.
Preferably, mean depth b of described annular groove is 0.2～1.0mm.
Preferably, the top of described annular groove apart from the height h of the upper end cutting edge of described die is
2-5mm。
Preferably, described die is annular, and its outer surface is the conical surface expanded downwards.
Preferably, the tapering of the described conical surface of the outer surface of described die is 1-5 degree, preferably 2
About degree.
Preferably, during described die is removably disposed in the hole of a pedestal.
The above-mentioned high speed stamping die of the present invention, is designed to into band annular groove by the inner surface of stamping-out through hole
Structure, portion of air can be retained in annular groove, destroy the negative pressure state in stamping-out through hole,
Effectively prevent waste material and be brought again into die, thus avoid waste material stuck destruction drift and die, effectively
Prevent because waste material absorption drift is brought back the tipping phenomenon that working face causes, it is to avoid the drift thereby resulted in,
Die tipping damages.
Accompanying drawing explanation
The following drawings is only intended to, in schematically illustrating the present invention and explaining, not limit the model of the present invention
Enclose.Wherein,
Fig. 1 is shown that the sectional structure schematic diagram by diel stamping-out light sheet material；
Fig. 2 is shown that the sectional view of the high speed stamping die of a specific embodiment according to the present invention；
Fig. 3 is shown that the section view of the high speed stamping die of another specific embodiment according to the present invention
Figure.
Detailed description of the invention
In order to the technical characteristic of the present invention, purpose and effect are more clearly understood from, now compare accompanying drawing
The detailed description of the invention of the present invention is described.Wherein, identical parts use identical label.
As described in background, add man-hour at thin plate class high speed stamping, drift breakage phenomenon often occurs.
And this phenomenon seldom occurs when usual speed punch process.Statistics finds, 500-800 beat/min
High speed stamping sheet parts when, the drift probability occurred that fractures is less than 200 beats/min general
Drift during the same part of logical speed punching press fractures 10-20 times of probability of happening, and this is the most extremely odd
Phenomenon.By checking mould, search drift Breaking Accident, The Reason, through checking drift non-blade port local tipping；
And general service wear is unlikely to cause fracture；If what drift material and heat treatment internal stress caused,
Can only be accidental scene, but during high speed blanking, especially during the light finding of ironing plate, work one section
Drift fracture, the phenomenon of cutting edge of die tipping is occurred as soon as after time.Obviously this and improper mould are lost,
But drift clashes into certain foreign matter in stamping-out, produce what huge drag caused.
Through analyzing the generation of foreign matter, it is not to be caused by the material falls back on mould or part blank defect,
Applicant judges that this is likely due to the waste material that drift sweeps away and returns what stamped area caused, but punching
Cut out why the waste material removed can overcome gravity to return stamped area？By contrast, applicant eliminates
The factor (light sheet material is aluminium alloy, it is impossible to produce magnetic) of material magnetization, also eliminates frictional static
(aluminium alloy is good conductor to the factor of suction, it is impossible to gathers enough electrostatic generations and be enough to overcome waste material gravity
Suction), last applicant accidentally judges to be likely due to what aerodynamics factor caused, and this is obvious
Right and wrong are it will be apparent that be beat all for a person skilled in the art.
As it is shown in figure 1, it is shown that the sectional structure schematic diagram by diel stamping-out light sheet material,
As it can be seen, when high speed blanking, drift 1 contacts with light sheet material 2 and is then downwardly into die 3,
Sweep away waste material 4 and form a hole 5, during drift 1 declines, drift 1 surface and thin plate
The edge of the hole 5 of material 2 is in close contact, due to drawing velocity quickly (up to 500-800 beat/min),
The edge slot of drift 1 surface and hole 5 is the least also has little time to suck enough air from top, and recessed
Air in mould 3 is inherently discharged under being pressed against of drift 1 and waste material 4 rapidly, therefore at height
The when of speed punching press, drift 1 can be made to enter the region 6 moment formation negative pressure state below hole 5.
Therefore itself it is to be made up of low-density aluminium alloy sheet and during small volume when waste material 4, himself
Very light in weight, thus drift 1 returns upwards when (drawing velocity quickly, drift the most then to
The speed of upper return quickly, the transfer process that almost moment completes), waste material 4 can be at the work of above-mentioned negative pressure
It is adsorbed under with on the bottom surface of drift 1 along with drift 1 moves upwardly together.
When drift 1 upwardly away from hole 5 when, negative pressure state eliminates, and waste material 4 can by hole 5
Edge block (edge of hole 5 always can some extend deformation make waste material 4 can be slightly larger than hole 5
Area) and fall in die 3 at random.Now light sheet material 2 moves to new position, and drift 1 is again
Secondary sweep away downwards new waste material and enter die 3, the bottom of drift 1 and new waste material can with fall
Waste material 4 collide, in most cases waste material 4 can be gone out die 3, but it is also possible that can be useless
Material 4 is expressed to stuck destruction drift 1 and die 3 in the edge slot of drift 1 and die 3, or useless
Material 4 can suck up upwards together with multiple new waste materials, is then easier to be stuck in 1 and die 3
In edge slot, therefore after continuous high speed punching press a period of time, drift, die will soon be caused
Tipping damages.
By above-mentioned non-obvious, have now surprisingly been found that, for during high speed blanking light sheet material rush
The problem that head, the easy tipping of die damage, the invention provides the high speed stamping die of a kind of improvement.As
Shown in Fig. 2, it is shown that the section view of high speed stamping die of a specific embodiment according to the present invention
Figure, wherein, drift when the high speed stamping die 3 of the present invention can be used for overcoming high speed blanking thin sheet material,
The defect that the easy tipping of die damages, described die 3 has a stamping-out through hole 31, with Fig. 1 die not
Being with part, in the present embodiment, the inner surface around stamping-out through hole 31 is formed with one and is perpendicular to stamping-out
The annular groove 32 of the axis direction of through hole 31, annular groove 32 is positioned in the stroke minimum point of drift 1
Side.
The above-mentioned high speed stamping die 3 of the present invention, is designed to into band annular by the inner surface of stamping-out through hole 31
The structure of groove 32, its advantage is when drift 1 sweeps away thin sheet material 2, and drift 1 and waste material 4 will
Air in stamping-out through hole 31 is discharged downwards, but annular groove 32 is perpendicular to the axis of stamping-out through hole 31
Direction, the air-flow discharge direction being namely perpendicular in stamping-out through hole 31, thus can in annular groove 32
To retain portion of air, the air that this part is retained destroys the negative pressure state in stamping-out through hole 31, when
The when that drift 1 traveling downward through annular groove 32 with waste material 4 (above annular groove 32
Yet suffer from negative pressure), the air in annular groove 32 can be between instantaneous entrance drift 1 and waste material 4
Contact surface, releases negative pressure state, and when drift 1 returns up motion, waste material 4 will not be inhaled by drift 1
Firmly move upward, thus effectively prevent waste material 4 and be brought again into die 3, thus avoid waste material 4 to block
Dead drift 1 and the die 3 of destroying, effective prevention is brought back, because of waste material absorption drift, the tipping that working face causes
Phenomenon, it is to avoid the drift thereby resulted in, die tipping damage.
Further, since the existence of annular groove 32 so that stamping-out through hole 31 is additionally provided one and has hung down
Straight in the extending space of axis direction, thus waste material 4 is through annular groove 32 when, waste material 4 punching press
The state (as shown in Figure 1) of deformation can fully reply straightened condition (as shown in Figure 2), keeps away further
Exempt from, in the stuck gap between drift 1 and die 3 of waste material 4 of irregular form, to improve mould
Service life.
In a further advantageous embodiment, as in figure 2 it is shown, the inner surface of stamping-out through hole 31 is designed as downwards
The conical surface expanded.The cutting edge of the conical surface form of this downward expansion, the waste material of stamping-out or part can be direct
Fall from stamping-out through hole 31, and stamping-out through hole 31 be the biggest, be difficult in through hole accumulate material,
Abrasion little suffered pressure in aperture is the least, is particularly well-suited to the high speed blanking of the present invention.Further, exist
In one preferred embodiment, the tapering of the described conical surface of described stamping-out through hole 31 inner surface is 2-5 degree, excellent
Electing about 3 degree as, this angular range is easier to blanking during high speed blanking.
It addition, in order to effectively destroy negative pressure state, the relative dimensions parameter of annular groove 32 is also critically important
, under optimum scheme, it should obtain optimum air retention effect with the least processing capacity and be advisable,
Both the effect destroying negative pressure can have been obtained, it is also possible to save processing cost.For instance, it is preferred that described ring
The width a of connected in star 32 is 0.2～1.0mm.In a further advantageous embodiment, described annular groove
Mean depth b of 32 is 0.2～1.0mm, is to tilt owing to annular groove 32 arranges the medial surface at place
, the annular groove 32 degree of depth on medial surface is not the most identical, thus preferred depth should be defined as
Mean depth is advisable.
Furthermore, the position at annular groove 32 place is also the ring needing optimal design-aside, i.e. annular groove
In the stroke range of 32 drifts 1 to be arranged on, and in view of drift 1 stroke the most on the lower, formed
Negative pressure the biggest, need more air could destroy negative pressure state completely, therefore, preferred at another
In embodiment, the top of annular groove 32 apart from the height h of the upper end cutting edge of described die 3 is
2-5mm。
In order to preferably prevent that crackle and stress are concentrated, described annular groove 32 and described stamping-out through hole
31 intersect up and down at two corner (301,302) can be all arc transition angle, for example, it may be process
It is the arc transition angle of 0.1mm for radius.
Fig. 3 is shown that the section view of the high speed stamping die of another specific embodiment according to the present invention
Figure, wherein, the internal structure of the die 3 in Fig. 3 is identical with Fig. 2, and difference is,
The die 3 of the present embodiment designs in annular, and its outer surface is the conical surface expanded downwards.This design
Advantage is that die 3 has been designed to modular structure, has only to annular after cutting edge of die weares and teares
Female mold part change, accessory size can be effectively ensured.It addition, why use expansion downwards
The outer surface of conical surface form, be to realize the quick-replaceable after cutting edge of die abrasion, i.e. conical surface form
Die module can dismountable be arranged in the hole of a pedestal 10, can be easily after damage
Pulling down from pedestal 10, conical surface form can avoid die deformation stuck in the hole of pedestal 10, saves
Take-down time.On the other hand, use the cavity die structure of Fig. 3 form, be also and the stamping-out of conical surface form
There is certain association in through hole 31, i.e. in previous embodiment, stamping-out through hole 31 inner surface described
The tapering of the conical surface is 2-5 degree, preferably about 3 degree, although this angular range is easier to high speed blanking
Blanking, but the angle that this angular range is but used compared to some high speed stamping die is (generally
Cylinder does not has tapering, and the tapering that tolerance is formed is generally less than 0.5 degree) much bigger, the highest fast-growing
In the case of product, the cutting edge of die rate of wear is fast, therefore, in a preferred embodiment of the invention,
It is 1-5 degree by the taper design of the conical surface of the outer surface of the die 3 in annular, preferably about 2 degree,
So dismounting is all convenient than common cylinder and reliable, improves production efficiency.
In sum, the high speed stamping die of the present invention is by being designed to into band by the inner surface of stamping-out through hole
The structure of annular groove, can retain portion of air in annular groove, destroy bearing in stamping-out through hole
Pressure condition, effectively prevent waste material and is brought again into die, thus avoids waste material stuck destruction drift and recessed
Mould, effectively prevention be brought back, because of waste material absorption drift, the tipping phenomenon that working face causes, it is to avoid thus makes
The drift, the die tipping that become damage.
Although it will be appreciated by those skilled in the art that the present invention is to retouch according to the mode of multiple embodiments
State, but the most each embodiment only comprises an independent technical scheme.Specification so describes
For the sake of being only used to understand, specification should be understood by those skilled in the art as an entirety,
And technical scheme involved in each embodiment regarded as can be in the way of being mutually combined into different embodiment
Understand protection scope of the present invention.
The foregoing is only the schematic detailed description of the invention of the present invention, be not limited to the model of the present invention
Enclose.Any those skilled in the art, is made on the premise of without departing from the design of the present invention and principle
Equivalent variations, revise and combine, the scope of protection of the invention all should be belonged to.
Claims (10)
1. a high speed stamping die, drift when being used for overcoming high speed blanking thin sheet material, die are easy
The defect that tipping damages, described die (3) has a stamping-out through hole (31), it is characterised in that enclose
Inner surface around described stamping-out through hole (31) is formed with an axle being perpendicular to described stamping-out through hole (31)
The annular groove (32) in line direction, described annular groove (32) is positioned at the stroke minimum point of drift (1)
Top.
2. die as claimed in claim 1, it is characterised in that described stamping-out through hole (31) inner surface
For the conical surface expanded downwards.
3. die as claimed in claim 2, it is characterised in that described stamping-out through hole (31) inner surface
The tapering of the described conical surface be 2-5 degree, preferably about 3 degree.
4. the die as described in one of claim 1-3, it is characterised in that described annular groove (32)
Width a be 0.2～1.0mm.
5. the die as described in one of claim 1-4, it is characterised in that described annular groove (32)
Mean depth b be 0.2～1.0mm.
6. the die as described in one of claim 1-5, it is characterised in that described annular groove (32)
The top be 2-5mm apart from the height h of the upper end cutting edge of described die (3).
7. the die as described in one of claim 1-7, it is characterised in that described die (3) is in annulus
Shape, its outer surface is the conical surface expanded downwards.
8. die as claimed in claim 8, it is characterised in that the appearance of described die (3)
The tapering of the described conical surface in face is 1-5 degree, preferably about 2 degree.
9. the die as described in claim 7-8, it is characterised in that described die (3) removably sets
Put in the hole of a pedestal (10).
10. die as claimed in claim 9, it is characterised in that described annular groove (32) and institute
State that stamping-out through hole (31) intersects up and down at two corner (301,302) can be all arc transition angle.
Priority Applications (4)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201811127717.7A CN109108151B (en) | 2016-06-28 | 2016-06-28 | Female die for high-speed stamping of thin plate |
| CN201811127777.9A CN109092976B (en) | 2016-06-28 | 2016-06-28 | Female die for stamping thin plate |
| CN201610479542.0A CN105921595B (en) | 2016-06-28 | 2016-06-28 | A kind of high speed stamping cavity plate |
| CN201811127779.8A CN109108152B (en) | 2016-06-28 | 2016-06-28 | Female die for high-speed stamping |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201610479542.0A CN105921595B (en) | 2016-06-28 | 2016-06-28 | A kind of high speed stamping cavity plate |
Related Child Applications (3)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201811127777.9A Division CN109092976B (en) | 2016-06-28 | 2016-06-28 | Female die for stamping thin plate |
| CN201811127779.8A Division CN109108152B (en) | 2016-06-28 | 2016-06-28 | Female die for high-speed stamping |
| CN201811127717.7A Division CN109108151B (en) | 2016-06-28 | 2016-06-28 | Female die for high-speed stamping of thin plate |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN105921595A true CN105921595A (en) | 2016-09-07 |
| CN105921595B CN105921595B (en) | 2018-11-13 |
Family
ID=56829217
Family Applications (4)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201811127717.7A Active CN109108151B (en) | 2016-06-28 | 2016-06-28 | Female die for high-speed stamping of thin plate |
| CN201811127779.8A Active CN109108152B (en) | 2016-06-28 | 2016-06-28 | Female die for high-speed stamping |
| CN201610479542.0A Active CN105921595B (en) | 2016-06-28 | 2016-06-28 | A kind of high speed stamping cavity plate |
| CN201811127777.9A Active CN109092976B (en) | 2016-06-28 | 2016-06-28 | Female die for stamping thin plate |
Family Applications Before (2)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201811127717.7A Active CN109108151B (en) | 2016-06-28 | 2016-06-28 | Female die for high-speed stamping of thin plate |
| CN201811127779.8A Active CN109108152B (en) | 2016-06-28 | 2016-06-28 | Female die for high-speed stamping |
Family Applications After (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201811127777.9A Active CN109092976B (en) | 2016-06-28 | 2016-06-28 | Female die for stamping thin plate |
Country Status (1)
| Country | Link |
|---|---|
| CN (4) | CN109108151B (en) |
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110799280A (en) * | 2017-06-28 | 2020-02-14 | 饭塚贵嗣 | Method for cutting metal plate, method for producing metal molded body, and metal molded body |
| CN111940662A (en) * | 2020-07-01 | 2020-11-17 | 湖北三环锻造有限公司 | Remanufacturing method of forging trimming die |
| CN113134522A (en) * | 2021-04-20 | 2021-07-20 | 湖南泰嘉新材料科技股份有限公司 | Method and system for identifying weld seams and/or defects in steel strip used to produce saw blades |
| CN113231532A (en) * | 2021-06-09 | 2021-08-10 | 东风柳州汽车有限公司 | Stamping and slitting method and stamping die |
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| CN110799280A (en) * | 2017-06-28 | 2020-02-14 | 饭塚贵嗣 | Method for cutting metal plate, method for producing metal molded body, and metal molded body |
| CN110799280B (en) * | 2017-06-28 | 2022-01-28 | 饭塚贵嗣 | Method for cutting metal plate, method for producing metal molded body, and metal molded body |
| US11247256B2 (en) | 2017-06-28 | 2022-02-15 | Takashi Iiduka | Method for cutting metal plate, method for manufacturing metal product, and metal product |
| CN111940662A (en) * | 2020-07-01 | 2020-11-17 | 湖北三环锻造有限公司 | Remanufacturing method of forging trimming die |
| CN113134522A (en) * | 2021-04-20 | 2021-07-20 | 湖南泰嘉新材料科技股份有限公司 | Method and system for identifying weld seams and/or defects in steel strip used to produce saw blades |
| CN113134522B (en) * | 2021-04-20 | 2024-06-07 | 湖南泰嘉新材料科技股份有限公司 | Method and system for identifying steel strip weld and/or defects for producing saw blades |
| CN113231532A (en) * | 2021-06-09 | 2021-08-10 | 东风柳州汽车有限公司 | Stamping and slitting method and stamping die |
Also Published As
| Publication number | Publication date |
|---|---|
| CN109092976B (en) | 2021-01-01 |
| CN109108152A (en) | 2019-01-01 |
| CN109108151A (en) | 2019-01-01 |
| CN105921595B (en) | 2018-11-13 |
| CN109108152B (en) | 2020-12-01 |
| CN109108151B (en) | 2020-12-01 |
| CN109092976A (en) | 2018-12-28 |
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