CN109940087A - Hole flanging mold and the mold are rushed by the method for embryo material machine-shaping - Google Patents
Hole flanging mold and the mold are rushed by the method for embryo material machine-shaping Download PDFInfo
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- CN109940087A CN109940087A CN201811055091.3A CN201811055091A CN109940087A CN 109940087 A CN109940087 A CN 109940087A CN 201811055091 A CN201811055091 A CN 201811055091A CN 109940087 A CN109940087 A CN 109940087A
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- hole
- embryo material
- punching
- jumper bar
- forming surface
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- 239000000463 material Substances 0.000 title claims abstract description 82
- 210000001161 mammalian embryo Anatomy 0.000 title claims abstract description 79
- 238000000034 method Methods 0.000 title claims description 10
- 238000007493 shaping process Methods 0.000 title claims description 6
- 238000004080 punching Methods 0.000 claims abstract description 75
- 230000007246 mechanism Effects 0.000 claims abstract description 17
- 230000009471 action Effects 0.000 claims abstract description 12
- 230000006835 compression Effects 0.000 claims abstract description 5
- 238000007906 compression Methods 0.000 claims abstract description 5
- 238000010008 shearing Methods 0.000 claims description 7
- 230000002093 peripheral effect Effects 0.000 claims description 5
- 230000007704 transition Effects 0.000 claims description 2
- 230000008450 motivation Effects 0.000 claims 1
- 238000000465 moulding Methods 0.000 abstract description 13
- 238000006073 displacement reaction Methods 0.000 abstract description 3
- 238000010586 diagram Methods 0.000 description 7
- 239000002699 waste material Substances 0.000 description 3
- 239000011230 binding agent Substances 0.000 description 2
- 230000000694 effects Effects 0.000 description 2
- 238000005299 abrasion Methods 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- 238000001125 extrusion Methods 0.000 description 1
- 230000003116 impacting effect Effects 0.000 description 1
- 239000010687 lubricating oil Substances 0.000 description 1
- 239000002184 metal Substances 0.000 description 1
- 239000011148 porous material Substances 0.000 description 1
- 230000008569 process Effects 0.000 description 1
- 230000009467 reduction Effects 0.000 description 1
Abstract
Hole flanging mold is rushed the invention discloses a kind of, first, swaging die is respectively set on two die holders, retainer mould, driving mechanism driving swaging die and the relative movement of retainer mould are implemented to treat the compression and forming action of molded part, jumper bar is set on swaging die, the punching hole seat for implementing punching operation with jumper bar cooperation is set on retainer mould, flange forming surface is set around the rod end rear of jumper bar on swaging die, forming surface is set around the end face rear of punching hole seat aperture on retainer mould, forming surface is opposite with flange forming surface to be made to implement flange forming action to the hole gone out on embryo material close to displacement cooperation.After the application used jumper bar and punching hole seat to cooperate to embryo material punching before this, the hole portion gone out on embryo material is implemented into flange forming action, in this way it is avoided that the hole edge to the hole portion gone out on embryo material impacts, prevent jumper bar directly to puncture embryo material and the case where substandard products occur, substantially increases the quality that hole flanging is rushed in molding on embryo material.
Description
Technical field
The present invention relates to the cold punching technology fields of body of a motor car stamping parts, specially a kind of to rush hole flanging mold and the mold
By the method for embryo material machine-shaping.
Background technique
Piercing and flanging is the common procedure of sheet metal component, i.e., needs to retain the part plate in pore diameter range in plate punching
Flange is formed at aperture, structural strength when guaranteeing the shape in aperture and cooperate with other components.Piercing and flanging generally makes
It uses and rushes hole flanging mold, as shown in Fig. 1 to 2, embryo material A is pressed between retainer core model 1 and binder core model 2, on binder core model 2
The molding hole 3 of taper is offered, the head of formed punch 4 punctured embryo material A before this, and then formed punch 4 and the inner wall cooperation of molding hole 3 are turned over
Side, last formed punch 4 is with 3 inside aperture opening's edge extrusion fit of molding hole to cut off waste material.Since formed punch 4 squeezes embryo material, embryo before this
Material A is gradually deformed until being punctured, and the place of being punctured will generate crack on embryo material A, this will result directly in the periphery of punching on embryo material
Crannied situation occurs on wall, seriously affects the Forming Quality of plate, in addition, formed punch 4 and 3 inside aperture opening's edge of molding hole are squeezed
Press-fit is just able to cutting waste material, causes situation jagged on the periphery wall of punching on embryo material to occur, it is also necessary to which worker is to embryo
Punching deburring on material influences the processing efficiency that embryo material rushes hole flanging.
Summary of the invention
It is an object of the invention to provide it is a kind of can be improved on embryo material that molding rushes hole flanging quality rush hole flanging mold.
To achieve the goals above, the technical solution of use are as follows: it is a kind of to rush hole flanging mold, it is set respectively on the first and second die holder
Swaging die, retainer mould are set, driving mechanism driving swaging die and the relative movement of retainer mould are implemented to treat the compression and molding of molded part
It acts, jumper bar is set on swaging die, the punching hole seat of punching operation is implemented in setting with jumper bar cooperation on retainer mould, and swaging die is upper
Flange forming surface is set around the rod end rear of jumper bar, molding is set around the end face rear of punching hole seat aperture on retainer mould
Face, forming surface is opposite with flange forming surface to be made to implement flange forming action to the hole gone out on embryo material close to displacement cooperation.
Compared with prior art, technical effect of the invention are as follows: the application used jumper bar and punching hole seat to cooperate to embryo before this
After expecting punching, the hole portion gone out on embryo material is implemented into flange forming action, in this way it is avoided that the hole portion gone out on embryo material
Hole prevents jumper bar and directly punctures embryo material and the case where substandard products occur along impacting, and substantially increases molding on embryo material and rushes hole flanging
Quality.
It is a further object to provide a kind of forming methods that can be improved molding on embryo material and rush hole flanging quality.
To achieve the goals above, the technical solution of use are as follows: a method of rush hole flanging mold for embryo material machine-shaping,
The following steps are included:
A, embryo material to be processed is placed between retainer mould and swaging die；
B, driving mechanism drives swaging die mobile to embryo material and embryo material is pressed on retainer mould；
C, driving mechanism drives jumper bar to continue mobile to embryo material, the formed punch of jumper bar and the outer tunnel end nozzle opening's edge of punching hole seat
It constitutes shearing and embryo material is gone out into hole portion with merging, the elastic force that the first spring provides drives the flange collar of punching hole seat to be resisted against always
On the step surface that large and small diameter hole section is constituted；
D, driving mechanism drives jumper bar to continue to move to until the table top of the rotary table section of jumper bar is resisted against the pipe end of punching hole seat
On face, when the pressure of jumper bar is greater than the elastic force that the first spring provides, jumper bar is moved together with punching hole seat, the outer peripheral surface of rotary table section
Forming surface cooperation with the bellmouth of retainer mould carries out flange to the hole gone out on embryo material；
E, driving mechanism retracts, and swaging die is separated with retainer mould, removes embryo material up to required workpiece.
Compared with prior art, technical effect of the invention are as follows: cooperated before this with jumper bar and punching hole seat to embryo material punching
Afterwards, the hole portion gone out on embryo material is implemented into flange forming action, substantially increases the quality that hole flanging is rushed in molding on embryo material.
Detailed description of the invention
Fig. 1,2 for mold work process in the prior art schematic diagram；
Fig. 3 be the present invention in embryo material be compacted after schematic diagram；
Fig. 3 a is the enlarged diagram of structure at M in Fig. 3；
Fig. 4 is the schematic diagram that mold completes after punching in the present invention；
Fig. 4 a is the enlarged diagram of structure at N in Fig. 4；
Fig. 5 is the schematic diagram that mold completes after flange in the present invention；
Fig. 5 a is the enlarged diagram of structure at P in Fig. 5.
Specific embodiment
It is a kind of to rush hole flanging mold, swaging die 10, retainer mould 20, driving mechanism driving pressure are respectively set on the first and second die holder
Material mould 10 and the relative movement of retainer mould 20 are implemented to treat the compression and forming action of molded part, and jumper bar 30 is arranged on swaging die 10,
The punching hole seat 40 for implementing punching operation with the cooperation of jumper bar 30 is set on retainer mould 20, the rod end of jumper bar 30 is located on swaging die 10
Flange forming surface 32 is set around rear, forming surface 211 is set around 40 aperture end face rear of punching hole seat on retainer mould 20,
Forming surface 211 and the close displacement cooperation of the opposite work of flange forming surface 32 implement flange forming action to the hole gone out on embryo material A.
The application used before this jumper bar 30 and 40 ostium of punching hole seat to embryo material punching after, gone out on such embryo material A
The hole of hole portion is along smooth, punching hole seat 40 in the flange forming surface 32 and retainer mould 20 being arranged around the rod end rear of jumper bar 30
Forming surface 211 provided around the rear of aperture end face cooperates flange, i.e., it is dynamic the hole portion gone out on embryo material A to be implemented flange molding
Make, in this way it is avoided that the hole edge to the hole portion gone out on embryo material A impacts, prevents jumper bar 30 and directly puncture embryo material and out occurrence
The case where product, substantially increases the quality that hole flanging is rushed in molding on embryo material.
As the preferred embodiment being punched out on embryo material A, the formed punch 31 of jumper bar 30 is cylindrical, and punching hole seat 40 is in pipe
Shape, the column core wire of formed punch 31 are overlapped with the tube core line of punching hole seat 40, wherein the edge of the end face of formed punch 31 forms cutting edge, punching
Opening's edge forms cutting edge, the pipe of the outer tunnel end of the cutting edge and punching hole seat 40 of such jumper bar 30 in the nozzle of the outer tunnel end of hole hole seat 40
Opening's edge concordantly constitutes shearing cooperation in mouthful, it is ensured that the hole for the hole portion gone out on embryo material A is along smooth.
The preferred embodiment of flange is carried out as the embryo material A hole portion gone out, and offers receiving punching on the retainer mould 20
The through-hole 21 of hole seat 40, the leading portion of the through-hole 21 are the bellmouth being gradually reduced by forward direction back aperture, the inner wall of bellmouth
Forming surface 211 is formed, the hole core wire of through-hole 21 is overlapped with the tube core line of punching hole seat 40；
It is connected between 30 shaft of jumper bar and formed punch 31 for the transition of rotary table section, the outer peripheral surface of rotary table section forms flange forming surface
32, flange forming surface 32 and 211 outer profile of forming surface coincide.
The waste material generated after punching on embryo material A can be discharged from the lumen of punching hole seat 40.
In through-hole 21 on retainer mould 20, back segment be respectively minor diameter hole section, major diameter hole section, have in the middle part of punching hole seat 40
Composition flange collar 41 is arranged along its tube body radial projection and flange collar 41 is located in major diameter hole section, 41 side plate face of flange collar and the second mould
The first spring 22 is connected between seat, and when nature, the first spring 22 drives another lateral plates of flange collar 41 to be resisted against large and small diameter
On the step surface 212 that hole section is constituted, the outer tunnel end end face of punching hole seat 40 and the front side opening's edge of forming surface 211 are concordant.
During embryo material A punching, if the first spring 22 provide elastic force be less than embryo material A punching needed for stamping press,
Punching hole seat 40 will retract, and embryo material A will stretch deformation, a degree of to will appear at the hole portion of punching on embryo material A
Phenomenon is torn, the flange thickness that also will cause hole portion reduces and is unable to reach design requirement, directly the connection of reduction plate A assembly
Intensity.Therefore, stamping press needed for the elastic force that the first spring 22 of the application provides is greater than embryo material A punching, in this way in embryo material A punching
During, the elastic force that the first spring 22 provides drives the flange collar 41 of punching hole seat 40 to be resisted against large and small diameter hole section structure always
At step surface 212 on, i.e., 40 position of punching hole seat is determining, can guarantee in this way jumper bar 30 formed punch 31 and punching hole seat
40 outer tunnel end nozzle opening's edge constitutes shearing cooperation, it is ensured that the hole for the hole portion gone out on embryo material A guarantees that embryo material A is gone out along smooth
Hole portion flange thickness.
Applicant thinks explanation, when embryo material A punching required stamping press P=klt Г, in which: k is coefficient, generally about
Equal to 1；L is the perimeter of product after punching press, unit mm；T is material thickness, unit mm；Г be material shearing strength, units MPa,
Generally take 320.The 1.5 of required stamping press when the embryo material A punching that the elastic force that the first spring 22 provides is calculated for above-mentioned formula
~2 times.
The aperture of the major diameter hole section of the outer diameter and through-hole 21 of the flange collar 41 is consistent, and flange collar 41 and major diameter hole section cooperate
Punching hole seat 40 is limited to move along 21 hole core direction of through-hole.On the one hand, in jumper bar 30 and mobile punching hole seat 40, it is ensured that jumper bar
30 cutting edge and opening's edge in the nozzle of the outer tunnel end of punching hole seat 40 are concordant always；On the other hand, 40 leading portion of punching hole seat is avoided
Reduced diameter section and through-hole (21) reduced diameter section cooperate be oriented to, avoid the reduced diameter section of 40 leading portion of punching hole seat from damaging.In addition,
Lubricating oil can be supplied between flange collar 41 and the major diameter hole section of through-hole 21 to mitigate the abrasion of the two.
The hole being pierced by for jumper bar 30 is offered on the swaging die 10, the tail end of jumper bar 30 is connected with wedge block 11, pressure
Second spring 12 is connected between material mould 10 and wedge block 11.
A method of hole flanging mold is rushed by embryo material machine-shaping, comprising the following steps:
A, embryo material A to be processed is placed between retainer mould 20 and swaging die 10；
B, as shown in Figure 3a, driving mechanism drives swaging die 10 mobile to embryo material A and embryo material A is pressed on retainer mould 20
On；
C, as shown in fig. 4 a, driving mechanism drives jumper bar 30 to continue mobile to embryo material A, formed punch 31 and the punching hole of jumper bar 30
The outer tunnel end nozzle opening's edge of seat 40 constitutes shearing and embryo material A is gone out hole portion with merging, and the elastic force that the first spring 22 provides drives punching
The flange collar 41 of hole hole seat 40 is resisted against always on the step surface 212 that large and small diameter hole section is constituted；
D, as shown in Figure 5 a, driving mechanism drives jumper bar 30 to continue to move to until the table top of the rotary table section of jumper bar 30 is resisted against
On the end surfaces of punching hole seat 40, when the pressure of jumper bar 30 is greater than the elastic force that the first spring 22 provides, jumper bar 30 and punching hole seat
40 move together, and the forming surface 211 of the bellmouth of the outer peripheral surface and retainer mould 20 of rotary table section 32 cooperates to the hole gone out on embryo material A
Carry out flange；
E, driving mechanism retracts, and swaging die 10 is separated with retainer mould 20, removes embryo material A up to required workpiece.
Driving mechanism includes the press being connected with the first die holder, and driving voussoir 13 is provided on the first die holder, drives voussoir
13 move up and down wedge block 11 are driven to move horizontally, and wedge block 11 drives the embryo material A of the vertical arrangement of jumper bar 30 to be pressed
Tightly and forming action.
Claims (9)
1. a kind of rush hole flanging mold, it is characterised in that: swaging die (10), retainer mould (20) are respectively set on the first and second die holder, drives
Motivation structure driving swaging die (10) and retainer mould (20) relative movement are implemented to treat the compression and forming action of molded part, swaging die
(10) jumper bar (30) are set on, the punching hole seat (40) of punching operation is implemented in setting with jumper bar (30) cooperation on retainer mould (20),
Flange forming surface (32) are set around the rod end rear of jumper bar (30) on swaging die (10), punching hole on retainer mould (20)
Forming surface (211) are arranged around the rear of (40) aperture end face in seat, and forming surface (211) and flange forming surface (32) opposite work lean on peri position
It moves cooperation and flange forming action is implemented to the hole gone out on embryo material (A).
2. according to claim 1 rush hole flanging mold, it is characterised in that: the formed punch (31) of jumper bar (30) is cylindrical, punching
In a tubular form, the column core wire of formed punch (31) is overlapped hole hole seat (40) with the tube core line of punching hole seat (40), the end face of formed punch (31)
Edge forms cutting edge, and the composition shearing concordant with opening's edge in the nozzle of the outer tunnel end of punching hole seat (40) of the cutting edge of jumper bar (30) is matched
It closes.
3. according to claim 1 or 2 rush hole flanging mold, it is characterised in that: offer receiving on the retainer mould (20)
The through-hole (21) of punching hole seat (40), the leading portion of the through-hole (21) are the bellmouth being gradually reduced by forward direction back aperture, taper
The inner wall in hole forms forming surface (211), and the hole core wire of through-hole (21) is overlapped with the tube core line of punching hole seat (40)；
It is connect between jumper bar (30) shaft and formed punch (31) for the transition of rotary table section, the outer peripheral surface of rotary table section forms flange forming surface
(32), flange forming surface (32) and forming surface (211) outer profile coincide.
4. according to claim 3 rush hole flanging mold, it is characterised in that: in the through-hole (21) on retainer mould (20), back segment
Respectively minor diameter hole section, major diameter hole section, punching hole seat (40) middle part, which has, arranges composition flange collar along its tube body radial projection
(41) and flange collar (41) is located in major diameter hole section, is connected with the first spring between flange collar (41) side plate face and the second die holder
(22), when nature, the first spring (22) drives flange collar (41) another lateral plates to be resisted against the platform that large and small diameter hole section is constituted
On terrace (212), the outer tunnel end end face of punching hole seat (40) is concordant with the front side opening's edge of forming surface (211).
5. according to claim 4 rush hole flanging mold, it is characterised in that: the elastic force that the first spring (22) provides is greater than embryo material
(A) stamping press needed for punching.
6. according to claim 4 rush hole flanging mold, it is characterised in that: the outer diameter of the flange collar (41) and through-hole (21)
The aperture of major diameter hole section is consistent, and flange collar (41) and the cooperation of major diameter hole section limit punching hole seat (40) along through-hole (21) hole core side
To movement.
7. according to claim 2 rush hole flanging mold, it is characterised in that: offer on the swaging die (10) for jumper bar
(30) tail end in the hole being pierced by, jumper bar (30) is connected with wedge block (11), connects between swaging die (10) and wedge block (11)
There are second spring (12).
8. a kind of hole flanging mold described in claim 1 that rushes is by the method for embryo material machine-shaping, it is characterised in that: including following step
It is rapid:
A, embryo material to be processed (A) is placed between retainer mould (20) and swaging die (10)；
B, driving mechanism drives swaging die (10) mobile to embryo material (A) and embryo material (A) is pressed on retainer mould (20)；
C, driving mechanism drives jumper bar (30) to continue mobile to embryo material (A), formed punch (31) and punching hole seat (40) of jumper bar (30)
Outer tunnel end nozzle opening's edge constitute shearing with merging embryo material
(A) go out hole portion, the elastic force that the first spring (22) provides drive the flange collar (41) of punching hole seat (40) be resisted against always it is big,
On the step surface (212) that minor diameter hole section is constituted；
D, driving mechanism drives jumper bar (30) to continue to move to until the table top of the rotary table section of jumper bar (30) is resisted against punching hole seat
(40) on end surfaces, when the pressure of jumper bar (30) is greater than the elastic force that the first spring (22) provide, jumper bar (30) and punching hole seat
(40) it moves together, the forming surface (211) of the bellmouth of the outer peripheral surface and retainer mould (20) of rotary table section (32) cooperates to embryo material (A)
On the hole gone out carry out flange；
E, driving mechanism retracts, and swaging die (10) is separated with retainer mould (20), removes embryo material
(A) up to required workpiece.
9. according to claim 8 rush hole flanging mold, it is characterised in that: driving mechanism includes the pressure being connected with the first die holder
Machine is provided with driving voussoir (13) on the first die holder, and driving voussoir (13), which moves up and down, drives wedge block (11) to move horizontally,
Wedge block (11) drives the embryo material (A) of jumper bar (30) vertical arrangement to carry out compression and forming action.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201811055091.3A CN109940087A (en) | 2018-09-11 | 2018-09-11 | Hole flanging mold and the mold are rushed by the method for embryo material machine-shaping |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201811055091.3A CN109940087A (en) | 2018-09-11 | 2018-09-11 | Hole flanging mold and the mold are rushed by the method for embryo material machine-shaping |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN109940087A true CN109940087A (en) | 2019-06-28 |
Family
ID=67005849
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201811055091.3A Pending CN109940087A (en) | 2018-09-11 | 2018-09-11 | Hole flanging mold and the mold are rushed by the method for embryo material machine-shaping |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN109940087A (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN112828146A (en) * | 2020-12-31 | 2021-05-25 | 广州敏实汽车零部件有限公司 | Progressive die production mechanism for side flanging |
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| JPS58112614A (en) * | 1981-12-26 | 1983-07-05 | Nissan Motor Co Ltd | Press die |
| KR20010107264A (en) * | 2000-05-26 | 2001-12-07 | 이선도 | Manufacturing apparatus for flange fittings and manufacturing method therefor |
| CN201676965U (en) * | 2010-04-14 | 2010-12-22 | 无锡市中捷减震器有限公司 | Punched tape hole flanging die of inner supporting pipe of automobile shock absorber |
| CN103537541A (en) * | 2013-09-25 | 2014-01-29 | 浙江吉利控股集团有限公司 | Installing hole punching device |
| CN203804031U (en) * | 2014-03-18 | 2014-09-03 | 广东美的集团芜湖制冷设备有限公司 | Hole-flanging die tripping prevention device |
| CN204486603U (en) * | 2015-03-17 | 2015-07-22 | 安徽江淮汽车股份有限公司 | Punching hole flanging mechanism and diel |
| CN205096362U (en) * | 2015-10-13 | 2016-03-23 | 无锡明豪汽车轻量化技术应用有限公司 | Construct towards hole flanging mold machine simultaneously |
| CN107199273A (en) * | 2016-03-16 | 2017-09-26 | 宝沃汽车（中国）有限公司 | A kind of bellmouth building mortion, car door shaping dies and bellmouth manufacturing process |
| CN207103562U (en) * | 2017-08-03 | 2018-03-16 | 奇瑞汽车股份有限公司 | A kind of thin plate punching die structure |
| CN207222692U (en) * | 2017-05-25 | 2018-04-13 | 马鞍山市力长机械科技有限公司 | A kind of high intensity, anti abrasive pierce punch |
| CN108393400A (en) * | 2018-02-10 | 2018-08-14 | 奇瑞汽车股份有限公司 | Flanging die |
| CN207839798U (en) * | 2018-01-04 | 2018-09-11 | 上海赛科利汽车模具技术应用有限公司 | A kind of punching hole flanging integral mechanism |
-
2018
- 2018-09-11 CN CN201811055091.3A patent/CN109940087A/en active Pending
Patent Citations (12)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS58112614A (en) * | 1981-12-26 | 1983-07-05 | Nissan Motor Co Ltd | Press die |
| KR20010107264A (en) * | 2000-05-26 | 2001-12-07 | 이선도 | Manufacturing apparatus for flange fittings and manufacturing method therefor |
| CN201676965U (en) * | 2010-04-14 | 2010-12-22 | 无锡市中捷减震器有限公司 | Punched tape hole flanging die of inner supporting pipe of automobile shock absorber |
| CN103537541A (en) * | 2013-09-25 | 2014-01-29 | 浙江吉利控股集团有限公司 | Installing hole punching device |
| CN203804031U (en) * | 2014-03-18 | 2014-09-03 | 广东美的集团芜湖制冷设备有限公司 | Hole-flanging die tripping prevention device |
| CN204486603U (en) * | 2015-03-17 | 2015-07-22 | 安徽江淮汽车股份有限公司 | Punching hole flanging mechanism and diel |
| CN205096362U (en) * | 2015-10-13 | 2016-03-23 | 无锡明豪汽车轻量化技术应用有限公司 | Construct towards hole flanging mold machine simultaneously |
| CN107199273A (en) * | 2016-03-16 | 2017-09-26 | 宝沃汽车（中国）有限公司 | A kind of bellmouth building mortion, car door shaping dies and bellmouth manufacturing process |
| CN207222692U (en) * | 2017-05-25 | 2018-04-13 | 马鞍山市力长机械科技有限公司 | A kind of high intensity, anti abrasive pierce punch |
| CN207103562U (en) * | 2017-08-03 | 2018-03-16 | 奇瑞汽车股份有限公司 | A kind of thin plate punching die structure |
| CN207839798U (en) * | 2018-01-04 | 2018-09-11 | 上海赛科利汽车模具技术应用有限公司 | A kind of punching hole flanging integral mechanism |
| CN108393400A (en) * | 2018-02-10 | 2018-08-14 | 奇瑞汽车股份有限公司 | Flanging die |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN112828146A (en) * | 2020-12-31 | 2021-05-25 | 广州敏实汽车零部件有限公司 | Progressive die production mechanism for side flanging |
| CN112828146B (en) * | 2020-12-31 | 2023-03-14 | 广州敏实汽车零部件有限公司 | Progressive die production mechanism for side flanging |
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Application publication date: 20190628 |