CN110524629A - Cutter - Google Patents
Cutter Download PDFInfo
- Publication number
- CN110524629A CN110524629A CN201910774754.5A CN201910774754A CN110524629A CN 110524629 A CN110524629 A CN 110524629A CN 201910774754 A CN201910774754 A CN 201910774754A CN 110524629 A CN110524629 A CN 110524629A
- Authority
- CN
- China
- Prior art keywords
- dynamic model
- edge
- iron
- edge iron
- amputation knife
- 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.)
- Pending
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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
- B26—HAND CUTTING TOOLS; CUTTING; SEVERING
- B26F—PERFORATING; PUNCHING; CUTTING-OUT; STAMPING-OUT; SEVERING BY MEANS OTHER THAN CUTTING
- B26F1/00—Perforating; Punching; Cutting-out; Stamping-out; Apparatus therefor
- B26F1/38—Cutting-out; Stamping-out
- B26F1/44—Cutters therefor; Dies therefor
Landscapes
- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Life Sciences & Earth Sciences (AREA)
- Forests & Forestry (AREA)
- Milling, Broaching, Filing, Reaming, And Others (AREA)
Abstract
The present invention discloses a kind of cutter, and the cutter includes: dynamic model edge iron and cover half amputation knife, and the dynamic model edge iron has the second side close to the first side of material and away from material；The cover half amputation knife at least partly with the dynamic model edge iron face with the dynamic model edge iron after deburring by the waste material cut cut off；Wherein, it is provided with the first cutting edge on the first side, the evacuation groove for avoiding the cover half amputation knife is provided on the dynamic model edge iron, the evacuation groove and first cutting edge interval are arranged.Cutting tool according to the present invention ensure that the continuity of the first cutting edge on dynamic model edge iron by the evacuation groove that evacuation dynamic model amputation knife is arranged on dynamic model edge iron and is spaced apart with cutting edge, and the deburring quality improved to material is high.
Description
Technical field
The present invention relates to part manufacture fields, more particularly, to a kind of cutter.
Background technique
In the related technology, it needing to carry out deburring processing to material, the waste material generated after deburring needs to carry out secondary shearing, with
Guarantee that waste material can be smoothly discharged, since the processing to material needs deburring and truncation two procedures, generally uses two cutters
It synchronizes and carries out deburring respectively and process is truncated, due to generating interference between two cutters, had on edge iron and be provided with evacuation section
The notch of breaking, it is not perfect that there are deburrings when to material deburring, and the deburring of material is of poor quality.
Summary of the invention
The present invention is directed at least solve one of the technical problems existing in the prior art.For this purpose, one object of the present invention
It is to propose a kind of cutter.What the cutter was spaced apart by the setting evacuation dynamic model amputation knife on dynamic model edge iron and with cutting edge keeps away
It allows groove, ensure that the continuity of the first cutting edge on dynamic model edge iron, the deburring quality improved to material is high.
Cutter according to an embodiment of the present invention includes: dynamic model edge iron and cover half amputation knife, and the dynamic model edge iron has
Second side close to the first side of material and away from material；The cover half amputation knife at least partly with the dynamic model deburring
Knife face is to cut off the waste material cut after deburring in the dynamic model edge iron；Wherein, is provided on the first side
One cutting edge, is provided with the evacuation groove for avoiding the cover half amputation knife on the dynamic model edge iron, the evacuation groove with it is described
The setting of first cutting edge interval.
Cutting tool according to the present invention, by the way that the evacuation groove of evacuation cover half amputation knife is arranged on dynamic model edge iron, simultaneously
It avoids groove and is spaced apart setting with the first cutting edge, avoid on the first cutting edge of dynamic model edge iron and offset occur, to ensure first
The continuity of cutting edge ensure that cutter carries out the flatness at material edge after deburring to material, improve the deburring matter to material
Amount, the material edge after deburring are more smooth.
According to one embodiment of present invention, the cutter further includes cover half edge iron and dynamic model amputation knife, the cover half
Edge iron has the second cutting edge cooperated with the first cutting edge of the dynamic model edge iron；The dynamic model amputation knife setting is described dynamic
On mould edge iron and it is suitable for cooperating with the cover half amputation knife to cut off the waste material.
According to one embodiment of present invention, the evacuation groove has towards the open opening in the second side.
According to one embodiment of present invention, side wall and second sword of the evacuation groove close to the first side
Minimum range between mouthful is 3mm-6mm.
According to one embodiment of present invention, there is third cutting edge, on the cover half amputation knife on the dynamic model amputation knife
It is provided with the 4th cutting edge with third cutting edge cooperation, a side wall in the evacuation groove is with the third cutting edge same
In one plane.
According to one embodiment of present invention, the dynamic model edge iron includes the second deburring of the first edge iron of dynamic model and dynamic model
Knife is provided with the first trimming edge on first edge iron, the second trimming edge is provided on second edge iron, described
First trimming edge is bonded to limit first cutting edge with second trimming edge, and the evacuation groove is set to described
On the second edge iron of the first edge iron of dynamic model or the dynamic model.
According to one embodiment of present invention, first edge iron and the dynamic model amputation knife are integrally formed or described the
Two edge irons and the dynamic model amputation knife are integrally formed.
According to one embodiment of present invention, the cover half amputation knife includes first with the evacuation groove bottom wall cooperation
The intersection in face and second face orthogonal with first face, first face and second face is configured to the 4th sword
Mouthful.
Additional aspect and advantage of the invention will be set forth in part in the description, and will partially become from the following description
Obviously, or practice through the invention is recognized.
Detailed description of the invention
Above-mentioned and/or additional aspect of the invention and advantage will become from the description of the embodiment in conjunction with the following figures
Obviously and it is readily appreciated that, in which:
Fig. 1 is the schematic diagram of cutter according to an embodiment of the present invention；
Fig. 2 is the cross-sectional view of cutter according to an embodiment of the present invention；
Fig. 3 is the partial enlarged view that Fig. 2 centre circle shows A；
Fig. 4 is the schematic diagram of dynamic model edge iron and dynamic model amputation knife according to an embodiment of the present invention；
Fig. 5 is the partial enlarged view that Fig. 4 centre circle shows B.
Appended drawing reference:
Cutter 100,
Dynamic model edge iron 10, first side 11, the first cutting edge 11a, second side 12 avoid groove 13, the first edge iron
14, the first trimming edge 14a, the second edge iron 15, the second trimming edge 15a,
Cover half amputation knife 20, the first face 21, the second face 22, the 4th cutting edge 23,
Cover half edge iron 30, the second cutting edge 31,
Dynamic model amputation knife 40, third cutting edge 41.
Specific embodiment
The embodiment of the present invention is described below in detail, examples of the embodiments are shown in the accompanying drawings, wherein from beginning to end
Same or similar label indicates same or similar element or element with the same or similar functions.Below with reference to attached
The embodiment of figure description is exemplary, and for explaining only the invention, and is not considered as limiting the invention.
In the related technology, it needing to carry out deburring processing to material, the waste material generated after deburring needs to carry out secondary shearing, with
Guarantee that waste material can be smoothly discharged, since the processing to material needs deburring and truncation two procedures, generally uses two cutters
It synchronizes and carries out deburring respectively and process is truncated, due to generating interference between two cutters, had on edge iron and be provided with evacuation section
The notch of breaking, it is not perfect that there are deburrings when to material deburring, and the deburring of material is of poor quality.
Cutter 100 according to an embodiment of the present invention is described below with reference to Fig. 1-Fig. 5.
Cutter 100 according to an embodiment of the present invention includes: dynamic model edge iron 10 and cover half amputation knife 20, dynamic model knife tool
There is the first side 11 of close material and away from the second side of material 12；Cover half amputation knife 20 at least partly with dynamic model deburring
10 face of knife is to cut off the waste material cut after deburring in dynamic model edge iron 10；Wherein, first is provided on first side 11
Cutting edge 11a is provided with the evacuation groove 13 of evacuation cover half amputation knife 20 on dynamic model edge iron 10, avoids groove 13 and the first cutting edge
The setting of the interval 11a.
Dynamic model edge iron 10 is suitable for carrying out deburring to material, and dynamic model edge iron 10 can be connected with power source, repair in dynamic model
The edge of material can be cut during side knife 10 is mobile, it is ensured that material is in the flush edge light after deburring
It is sliding.Cover half amputation knife 20 can with dynamic model amputation knife 40 cooperate generated waste material will be truncated after deburring, due to
Synchronous with truncated process to the deburring of material to carry out, cover half amputation knife 20 is arranged adjacent to dynamic model edge iron 10, and wherein cover half is truncated
The extending direction of knife 20 is orthogonal with the extending direction of dynamic model edge iron 10, and dynamic model edge iron 10 and cover half amputation knife 20 have portion
Divide overlapping.
Since dynamic model edge iron has close to the first side 11 of material and away from the second side of material 12, the first cutting edge
11a is arranged on first side 11 and extends along the length direction of dynamic model edge iron 10, and the first cutting edge 11a is suitable for material
It is cut off, during dynamic model edge iron 10 cuts material, the first cutting edge 11a can take the lead in contacting with material to material
It is cut.
It partly overlaps since dynamic model edge iron 10 has with cover half amputation knife 20, setting evacuation is recessed on dynamic model edge iron 10
Slot 13 prevents dynamic model edge iron 10 from interfering with cover half amputation knife 20 to avoid cover half amputation knife 20, while avoiding groove 13
It is spaced setting between the first cutting edge 11a, guarantees that the setting of evacuation groove 13 not will lead to the disconnection of the first cutting edge 11a, it is ensured that
The continuity of first cutting edge 11a improves dynamic model edge iron 10 to the flatness of material deburring, improves deburring quality, reduces
The generation of burr.
Cutting tool according to the present invention 100 is recessed by the evacuation that evacuation cover half amputation knife 20 is arranged on dynamic model edge iron 10
Slot 13, while avoiding groove 13 and being spaced apart setting with the first cutting edge 11a, it avoids on the first cutting edge 11a of dynamic model edge iron 10
Occur offset, to ensure the continuity of the first cutting edge 11a, ensure that cutter to material carry out deburring after material edge it is smooth
Degree, improves the deburring quality to material, the material edge after deburring is more smooth.
According to one embodiment of present invention, cutter 100 further include: cover half edge iron 30 and dynamic model amputation knife 40, cover half
Edge iron 30 has the second cutting edge 31 cooperated with the first cutting edge 11a of dynamic model edge iron 10；The setting of dynamic model amputation knife 40 is dynamic
On mould edge iron 10 and it is suitable for cooperating with cover half amputation knife 20 to cut off waste material.
Cover half edge iron 30 is set to the downside of dynamic model edge iron 10, and material is placed in dynamic model edge iron 10 and cover half deburring
Between knife 30, dynamic model edge iron 10 is mobile to be cooperated with cover half edge iron 30, utilizes dynamic model edge iron 10 and 30 institute of cover half edge iron
The shearing force of generation is to carry out deburring to material, wherein the first cutting edge 11a and the second cutting edge 31 are respectively arranged at dynamic model edge iron
10 and cover half edge iron 30 on, during material deburring, the first cutting edge 11a is moved down, the first cutting edge 11a can take the lead in
Material contacts and the first cutting edge 11a is contacted with the upper and lower surfaces of material respectively with the second cutting edge 31, in dynamic model edge iron
In 10 moving process, the first cutting edge 11a and the second cutting edge 31 cooperation material edge generate shearing force, material is extra
Part cut and formed the new edge of material so that cutter 100 completes deburring to material.
Further, cover half amputation knife 20 is set to the downside of dynamic model amputation knife 40, is cut by dynamic model amputation knife 40 and cover half
The cooperation of breaking 20 with by after deburring waste material be truncated, avoid because the length of waste material is too long, caused by material can not be timely
Discharge, improves the reliability to material trim process.
According to one embodiment of present invention, evacuation groove 13 has towards the open opening in second side 12, by
Open opening is arranged in the side for avoiding groove 13 towards second side 12, and cover half amputation knife 20 is made to be directed away from dynamic model edge iron
10 direction extends, and ensure that the length of cover half amputation knife 20, and the waste material for keeping cutter 100 bigger to width is truncated,
Improve the applicability of cutter 100.
According to one embodiment of present invention, evacuation groove 13 is between the side wall and the second cutting edge 31 of first side 11
Minimum range be 3mm-6mm, avoiding groove 13 and the second cutting edge 31, there are certain spacing, to guarantee dynamic model edge iron 10
Continuity avoids and occurs notch on the first cutting edge 11a, while can guarantee the first sword in dynamic model edge iron 10 in above-mentioned distance
Mouth 11a and evacuation groove 13 can satisfy the first cutting edge 11a and want to intensity close to the distance between the side wall of first side 11
It asks, ensure that the structural strength in dynamic model edge iron 10 with evacuation 13 face part of groove, avoid groove 13 close to first side
Preferably spacing between 11 side wall and the second cutting edge 31 is 4mm.
As shown in figure 5, according to one embodiment of present invention, having third cutting edge 41 on dynamic model amputation knife 40, cover half is cut
It is provided with the 4th cutting edge 23 cooperated with third cutting edge 41 on breaking 20, avoids a side wall and third cutting edge 41 in groove 13
In the same plane.
Dynamic model amputation knife 40 is set to the upper end of cover half amputation knife 20, and waste material is placed in dynamic model amputation knife 40 and cover half is truncated
Between knife 20, dynamic model amputation knife 40 cooperates with cover half amputation knife 20 to cut off to waste material, wherein third cutting edge 41 and the 4th
Cutting edge 23 is respectively arranged on dynamic model amputation knife 40 and cover half amputation knife 20, during waste material is cut off ground, third cutting edge 41
It moves down, third cutting edge 41 can take the lead in contacting with waste material and third cutting edge 41 and the 4th cutting edge 23 only support, to complete to waste material
Cutting, convenient for the truncation to scrap, and the side wall avoided in groove 13 and third cutting edge 41 are configured to same flat
In face, the waste material in evacuation groove 13 to be truncated, guarantee that the truncation of waste material is thorough.
Further, cover half edge iron has body part, and the recessed portion being arranged close to one end of cover half edge iron 30,
The upper surface of middle recessed portion is lower than the upper surface of body part.Deburring is carried out to material in dynamic model edge iron 10 and cover half edge iron 30
When, positioned at the waste material of recessed portion, can be bent during cover half edge iron 30 moves down towards recessed portion, cover half edge iron
30 first squeeze material, and the waste material positioned at body part can keep original position, and during extruding, waste material can be due to dynamic model
The shape of edge iron 10 and cover half edge iron 30 and stress deformation occurs, waste material can occur to receive to the open direction of groove
Contracting, so as to be located at the waste material court in dynamic model edge iron 10 between the side wall and second cutting edge 31 of the first side 11
It inwardly withdraws, guarantees that waste material can be reliably truncated.
According to one embodiment of present invention, dynamic model edge iron 10 includes the second deburring of the first edge iron of dynamic model 14 and dynamic model
Knife 15 is provided with the first trimming edge 14a on first edge iron 14, is provided with the second trimming edge 15a on the second edge iron 15,
First trimming edge 14a is bonded to limit the first cutting edge 11a with the second trimming edge 15a, and evacuation groove 13 is set to dynamic model
On first edge iron 14 or the second edge iron of dynamic model 15.
Wherein, dynamic model edge iron 10 is made of the first edge iron of dynamic model 14 and the second edge iron of dynamic model 15, by by dynamic model
Edge iron 10 is divided into two parts, can reduce the length of edge iron, can be with to reduce to the difficulty of processing of dynamic model edge iron 10
The length of the first cutting edge 11a is improved, in the case where 100 limited length of cutter to guarantee the deburring efficiency to material.
According to one embodiment of present invention, the first edge iron 14 and the integrated molding of dynamic model amputation knife 40 or the second edge iron
15 are integrally formed with dynamic model amputation knife 40, and dynamic model amputation knife 40 and the first edge iron 14 or the second edge iron 15 can pass through punching press
Or casting and forming is integrated, and reduces the connection work of dynamic model amputation knife 40 and the first edge iron 14 or the second edge iron 15
Sequence reduces the production difficulty of cutter 100, improves 100 production efficiency of cutter.
Further, dynamic model amputation knife 40 and the first edge iron 14 or the second edge iron 15 construction are integrated, Ke Yibao
Dynamic model edge iron 10 and 40 while property of dynamic model amputation knife are demonstrate,proved, after the completion of dynamic model edge iron 10 is to material deburring, dynamic model truncation
Knife 40 continues to move downward to cut off waste material, avoids and generates burr in material deburring, improves the smooth of material deburring
Degree, while deburring and truncation can be enabled to act and be completed at the same time, improve production efficiency.
According to one embodiment of present invention, cover half amputation knife 20 includes the first face 21 with evacuation 13 bottom wall of groove cooperation
The intersection in second face 22 orthogonal with the first face 21, the first face 21 and the second face 22 is configured to the 4th cutting edge 23, and first
Face 21 is in the same plane with groove bottom wall, and during dynamic model amputation knife 40 moves down, groove bottom wall and first
Face 21 is only supported, convenient for cutting off waste material.
In the description of the present invention, it is to be understood that, term " center ", " longitudinal direction ", " transverse direction ", " length ", " width ",
" thickness ", "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outside", " up time
The orientation or positional relationship of the instructions such as needle ", " counterclockwise ", " axial direction ", " radial direction ", " circumferential direction " be orientation based on the figure or
Positional relationship is merely for convenience of description of the present invention and simplification of the description, rather than the device or element of indication or suggestion meaning must
There must be specific orientation, be constructed and operated in a specific orientation, therefore be not considered as limiting the invention.
In the description of the present invention, " fisrt feature ", " second feature " may include one or more of the features.
In the description of the present invention, the meaning of " plurality " is two or more.
In the description of the present invention, fisrt feature may include the first and second spies in second feature " on " or " under "
Sign directly contacts, and also may include that the first and second features are not direct contacts but are connect by the other feature between them
Touching.
In the description of the present invention, fisrt feature includes fisrt feature above the second feature " above ", " above " and " above "
Right above second feature and oblique upper, or first feature horizontal height is merely representative of higher than second feature.
In the description of this specification, reference term " one embodiment ", " some embodiments ", " illustrative examples ",
The description of " example ", " specific example " or " some examples " etc. means specific features described in conjunction with this embodiment or example, knot
Structure, material or feature are included at least one embodiment or example of the invention.In the present specification, to above-mentioned term
Schematic representation may not refer to the same embodiment or example.Moreover, specific features, structure, material or the spy of description
Point can be combined in any suitable manner in any one or more of the embodiments or examples.
Although an embodiment of the present invention has been shown and described, it will be understood by those skilled in the art that: not
A variety of change, modification, replacement and modification can be carried out to these embodiments in the case where being detached from the principle of the present invention and objective, this
The range of invention is defined by the claims and their equivalents.
Claims (8)
1. a kind of cutter characterized by comprising
Dynamic model edge iron, the dynamic model edge iron have the second side close to the first side of material and away from material；
Cover half amputation knife, the cover half amputation knife at least partly with the dynamic model edge iron face in the dynamic model edge iron
The waste material cut is cut off after deburring；Wherein
It is provided with the first cutting edge on the first side, is provided on the dynamic model edge iron and avoids keeping away for the cover half amputation knife
Allow groove, the evacuation groove and first cutting edge interval are arranged.
2. cutter according to claim 1, which is characterized in that further include:
Cover half edge iron, the cover half edge iron have the second cutting edge cooperated with the first cutting edge of the dynamic model edge iron；
Dynamic model amputation knife, the dynamic model amputation knife are arranged on the dynamic model edge iron and are suitable for cooperating with the cover half amputation knife
The waste material to be cut off.
3. cutter according to claim 2, which is characterized in that the evacuation groove, which has towards the second side, to be opened wide
Opening.
4. cutter according to claim 3, which is characterized in that it is described evacuation groove close to the first side side wall with
Minimum range between second cutting edge is 3mm-6mm.
5. cutter according to claim 2, which is characterized in that there is third cutting edge on the dynamic model amputation knife, it is described fixed
The 4th cutting edge with third cutting edge cooperation, the side wall and described the in the evacuation groove are provided on mould amputation knife
Three cutting edges are in the same plane.
6. cutter according to claim 2, which is characterized in that the dynamic model edge iron includes the first edge iron of dynamic model and moves
The second edge iron of mould is provided with the first trimming edge on first edge iron, is provided with second on second edge iron and repairs
Side cutting edge, first trimming edge are bonded to limit first cutting edge with second trimming edge, and the evacuation is recessed
Slot is set on the second edge iron of first edge iron of dynamic model or the dynamic model.
7. cutter according to claim 6, which is characterized in that first edge iron and dynamic model amputation knife one at
Type or second edge iron and the dynamic model amputation knife are integrally formed.
8. cutter according to claim 6, which is characterized in that the cover half amputation knife includes and the evacuation groove bottom wall
The first face and second face orthogonal with first face of cooperation, the intersection in first face and second face are configured to
4th cutting edge.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201910774754.5A CN110524629A (en) | 2019-08-21 | 2019-08-21 | Cutter |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201910774754.5A CN110524629A (en) | 2019-08-21 | 2019-08-21 | Cutter |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN110524629A true CN110524629A (en) | 2019-12-03 |
Family
ID=68662514
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201910774754.5A Pending CN110524629A (en) | 2019-08-21 | 2019-08-21 | Cutter |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN110524629A (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN112317595A (en) * | 2020-09-30 | 2021-02-05 | 中国第一汽车股份有限公司 | Stamping and trimming process for preventing waste cuttings from being generated |
Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPH0615379A (en) * | 1992-04-16 | 1994-01-25 | Mercedes Benz Ag | Trimming tool for trimming drawn part all around its periphery and severing crosswise cut piece of waste strip simultaneously |
| CN204700119U (en) * | 2014-12-31 | 2015-10-14 | 浙江吉利汽车有限公司 | A kind of concealed waste knife mechanism of edger |
| CN206253503U (en) * | 2016-11-28 | 2017-06-16 | 成都普什汽车模具有限公司 | Impulse- free robustness trimming mechanism at waste knife |
| CN208004585U (en) * | 2018-02-07 | 2018-10-26 | 东风汽车集团股份有限公司乘用车公司 | A kind of covering Trimming Die |
| CN109834154A (en) * | 2019-03-14 | 2019-06-04 | 武汉宝钢华中贸易有限公司 | A kind of blanking die waste knife assembly |
-
2019
- 2019-08-21 CN CN201910774754.5A patent/CN110524629A/en active Pending
Patent Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPH0615379A (en) * | 1992-04-16 | 1994-01-25 | Mercedes Benz Ag | Trimming tool for trimming drawn part all around its periphery and severing crosswise cut piece of waste strip simultaneously |
| CN204700119U (en) * | 2014-12-31 | 2015-10-14 | 浙江吉利汽车有限公司 | A kind of concealed waste knife mechanism of edger |
| CN206253503U (en) * | 2016-11-28 | 2017-06-16 | 成都普什汽车模具有限公司 | Impulse- free robustness trimming mechanism at waste knife |
| CN208004585U (en) * | 2018-02-07 | 2018-10-26 | 东风汽车集团股份有限公司乘用车公司 | A kind of covering Trimming Die |
| CN109834154A (en) * | 2019-03-14 | 2019-06-04 | 武汉宝钢华中贸易有限公司 | A kind of blanking die waste knife assembly |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN112317595A (en) * | 2020-09-30 | 2021-02-05 | 中国第一汽车股份有限公司 | Stamping and trimming process for preventing waste cuttings from being generated |
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| PB01 | Publication | ||
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Application publication date: 20191203 |