CN113210510A - Improve material of pressing of antetheca part profile size precision punching device that buckles - Google Patents
Improve material of pressing of antetheca part profile size precision punching device that buckles Download PDFInfo
- Publication number
- CN113210510A CN113210510A CN202110410209.5A CN202110410209A CN113210510A CN 113210510 A CN113210510 A CN 113210510A CN 202110410209 A CN202110410209 A CN 202110410209A CN 113210510 A CN113210510 A CN 113210510A
- Authority
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- China
- Prior art keywords
- die
- connecting plate
- punching
- upper die
- fixedly connected
- 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
Links
- 238000004080 punching Methods 0.000 title claims abstract description 50
- 238000003825 pressing Methods 0.000 title claims abstract description 17
- 239000000463 material Substances 0.000 title claims description 11
- 238000005452 bending Methods 0.000 claims abstract description 18
- 239000002699 waste material Substances 0.000 claims description 7
- 238000004519 manufacturing process Methods 0.000 abstract description 11
- 238000000034 method Methods 0.000 description 3
- 238000000465 moulding Methods 0.000 description 2
- 238000007493 shaping process Methods 0.000 description 2
- 238000010586 diagram Methods 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- 238000009434 installation Methods 0.000 description 1
- 239000002184 metal Substances 0.000 description 1
- 238000003860 storage Methods 0.000 description 1
- 238000009966 trimming Methods 0.000 description 1
Images
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
- B21D37/00—Tools as parts of machines covered by this subclass
- B21D37/10—Die sets; Pillar guides
-
- 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
- B21D22/00—Shaping without cutting, by stamping, spinning, or deep-drawing
- B21D22/02—Stamping using rigid devices or tools
-
- 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
- B21D28/04—Centering the work; Positioning the tools
-
- 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
- B21D35/00—Combined processes according to or processes combined with methods covered by groups B21D1/00 - B21D31/00
- B21D35/001—Shaping combined with punching, e.g. stamping and perforating
-
- 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
- B21D35/00—Combined processes according to or processes combined with methods covered by groups B21D1/00 - B21D31/00
- B21D35/002—Processes combined with methods covered by groups B21D1/00 - B21D31/00
- B21D35/003—Simultaneous forming, e.g. making more than one part per stroke
-
- 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
- B21D45/02—Ejecting devices
-
- 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
- B21D53/00—Making other particular articles
- B21D53/88—Making other particular articles other parts for vehicles, e.g. cowlings, mudguards
Abstract
The invention discloses a pressing, bending and punching device for improving the dimensional accuracy of the molded surface of a front wall plate part, which comprises: the upper die mechanism comprises an upper die base, a female die, a plurality of first punches and a plurality of limiting blocks, the female die is fixedly connected to the upper die base, the first punches are connected to the upper die base and extend out of the surface of the female die, and the limiting blocks are connected to the upper die base and located on the periphery of the female die; the lower die mechanism comprises a lower die base, a male die, a plurality of side punching parts and a plurality of side forming parts, the male die, the side punching parts and the side forming parts are all connected to the lower die base, the male die is matched with the female die, the side forming parts comprise third connecting plates fixedly connected to the lower die base, the third connecting plates are connected with side forming parts in a sliding mode, the side forming parts are connected with fourth connecting plates in a public mode, and the tops of the fourth connecting plates are fixedly connected to the upper die base. Compared with the prior art, the invention can solve the problems of poor production quality and low efficiency of parts of the automobile which need front wall plates.
Description
Technical Field
The invention relates to the field of part punch forming, in particular to a material pressing, bending and punching device for improving the size precision of the molded surface of a front wall plate part.
Background
With the development of science and technology, stamping dies are required to be used for various parts of an automobile body in the production and manufacturing of automobiles, and the automobile parts are produced by the stamping dies, so that the production efficiency of the automobiles can be greatly improved.
At present, in the whole automobile industry, the row shapes of a plurality of metal stamping parts are odd and strange, especially, the automobile can be manufactured only by forming front wall plate parts firstly, and then carrying out technological processes of trimming, punching, side punching and the like, but a stamping die adopted by the automobile part production enterprises for producing the parts is single, only a single procedure of the parts can be processed, so that the equipment investment is huge, and the occupied area of a warehouse and a production workshop during storage and work is also large; multiple sets of dies need multiple sets of corresponding stamping workers during production of the production line, so that the labor cost is increased, the quality cannot be controlled, and the production cost is increased.
Disclosure of Invention
The invention aims to: the pressing, bending and punching device for improving the molded surface size precision of the front wall plate part is provided for solving the problems of poor production quality and low efficiency of the front wall plate part required by an automobile.
In order to achieve the purpose, the invention adopts the following technical scheme: the utility model provides an improve material of pressing of preceding wallboard part profile size precision punching device that buckles, it includes: the upper die mechanism comprises an upper die base, a female die, a plurality of first punches and a plurality of limiting blocks, the female die is fixedly connected to the upper die base, the first punches are connected to the upper die base and extend out of the surface of the female die, and the limiting blocks are connected to the upper die base and located on the periphery of the female die; the lower die mechanism comprises a lower die base, a male die, a plurality of side edge punching parts and a plurality of side edge forming parts, the male die, the side punching parts and the side forming parts are all connected on the lower die seat, the male die is matched with the female die, the side punching parts and the side forming parts are positioned on the same side, the side punching component comprises a first connecting plate fixedly connected on the lower die holder, a punching head holder is connected on the first connecting plate in a sliding manner, the punch seat is connected with a second connecting plate, the top of the second connecting plate is fixedly connected with the upper die seat, the side edge forming component comprises a third connecting plate fixedly connected on the lower die base, a side edge forming male is connected on the third connecting plate in a sliding way, the side edge forming male die is connected with a fourth connecting plate, and the top of the fourth connecting plate is fixedly connected to the upper die base.
As a further description of the above technical solution:
the two opposite sides of the first connecting plate are respectively provided with a first sliding groove, a first sliding block is connected to the first sliding grooves in a sliding mode, and one end of the first sliding block is fixedly connected to the punch seat.
As a further description of the above technical solution:
one side of punch holder is provided with the second drift, be provided with on the lateral wall of die and dodge the groove, dodge the position of groove with the second drift is corresponding.
As a further description of the above technical solution:
the relative both sides of third connecting plate are provided with the second spout respectively, sliding connection has the second slider on the second spout, the one end fixed connection of second slider is on the fixing base, the public installation of side shaping is in on the fixing base.
As a further description of the above technical solution:
the contact surface of the fourth connecting plate and the fixed seat is an inclined surface.
As a further description of the above technical solution:
at least one layer of base plate is arranged between the fourth connecting plate and the fixed seat.
As a further description of the above technical solution:
the two sides of the fourth connecting plate are respectively provided with a connecting block, one end of each connecting block is hooked on the corresponding fixing seat, and the other end of each connecting block is fixedly connected onto the fourth connecting plate through a pin.
As a further description of the above technical solution:
the connecting block is provided with a clamping groove, the bottom of the clamping groove is in contact with the groove in the fixing seat, and the top of the clamping groove is in contact with the top surface of the base plate.
As a further description of the above technical solution:
and a plurality of waste sliding plates are respectively arranged on two sides of the lower die mechanism.
1. When the upper die mechanism and the lower die mechanism are closed, the upper die base extrudes the fourth connecting plate, so that the second sliding blocks on the two sides of the fixed base slide along the second sliding grooves, the fixed base can be limited from deviating, and the purpose of improving the forming is achieved.
2. According to the invention, when the product is subjected to lateral punching, the second punch arranged on the punch seat is pushed by the upper die base to perform lateral punching on the product, and when the upper die mechanism and the lower die mechanism are closed, the upper die base extrudes the second connecting plate, so that the first sliding blocks on two sides of the punch seat slide along the first sliding grooves, the punch seat can be limited from deviating, and the quality of punching is improved.
3. In the invention, in order to improve the quality of lateral forming and punching, the upper die holder is fixedly provided with a limiting block which can limit the movement of the male die during forming; through the waste material slide that sets up, can in time discharge the waste material, avoid haring the mould, reach the purpose that improves life.
Drawings
In order to more clearly illustrate the technical solutions of the embodiments of the present invention, the drawings needed to be used in the embodiments will be briefly described below, it should be understood that the following drawings only illustrate some embodiments of the present invention and therefore should not be considered as limiting the scope, and for those skilled in the art, other related drawings can be obtained according to the drawings without inventive efforts.
Fig. 1 is a schematic structural diagram of a material pressing, bending and punching device for improving the profile dimension precision of a front wall plate part.
Fig. 2 is a schematic view of an internal structure of a material pressing, bending and punching device for improving the profile dimension precision of front wall plate parts.
Fig. 3 is a second internal structure view of the material pressing, bending and punching device for improving the profile dimension precision of the front wall plate part.
Fig. 4 is a structural view of a side edge forming part in the material pressing, bending and punching device for improving the profile dimension precision of the front wall plate part.
FIG. 5 is a structural view of a side punching component in the material pressing, bending and punching device for improving the profile dimension precision of front wall plate parts.
FIG. 6 is a partial internal structural view of a material pressing, bending and punching device for improving the profile dimension precision of front wall plate parts.
Illustration of the drawings:
1. an upper die mechanism; 11. an upper die holder; 12. a female die; 13. a first punch; 14. a limiting block; 2. a lower die mechanism; 21. a lower die holder; 22. a male die; 23. a side punching component; 231. a first connecting plate; 2311. a first chute; 232. a punch holder; 2321. a second punch; 233. a second connecting plate; 24. a side molding member; 241. a third connecting plate; 2411. a second chute; 242. forming a side edge; 243. a fourth connecting plate; 3. a first slider; 4. a second slider; 5. a fixed seat; 6. a base plate; 7. connecting blocks; 71. a card slot; 8. a waste slide plate.
Detailed Description
The technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only a part of the embodiments of the present invention, and not all of the embodiments. All other embodiments, which can be derived by a person skilled in the art from the embodiments given herein without making any creative effort, shall fall within the protection scope of the present invention.
Referring to fig. 1-6, the present invention provides a technical solution: a pressing, bending and punching device for improving the size precision of the front wall part profile comprises an upper die mechanism 1, an upper die base 11, a female die 12, a plurality of first punches 13 and a plurality of limiting blocks 14, wherein the female die 12 is fixedly connected to the upper die base 11, the first punches 13 are connected to the upper die base 11 and extend out of the surface of the female die 12, and the limiting blocks 14 are connected to the upper die base 11 and located around the female die 12;
the lower die mechanism 2 comprises a lower die base 21, a male die 22, a plurality of side punching components 23 and a plurality of side forming components 24, wherein the male die 22, the plurality of side punching components 23 and the plurality of side forming components 24 are all connected to the lower die base 21, the male die 22 is matched with the female die 12, the plurality of side punching components 23 and the plurality of side forming components 24 are positioned at the same side, the side punching components 23 comprise first connecting plates 231 fixedly connected to the lower die base 21, punch bases 232 are connected to the first connecting plates 231 in a sliding manner, second connecting plates 233 are connected to the punch bases 232, the tops of the second connecting plates 233 are fixedly connected to the upper die base 11, the side forming components 24 comprise third connecting plates 241 fixedly connected to the lower die base 21, and side forming male dies 242 are connected to the third connecting plates 241 in a sliding manner, the side forming male 242 is connected with a fourth connecting plate 243, and the top of the fourth connecting plate 243 is fixedly connected to the upper die holder 11.
The two opposite sides of the first connecting plate 231 are respectively provided with a first sliding groove 2311, the first sliding groove 2311 is connected with a first sliding block 3 in a sliding manner, and one end of the first sliding block 3 is fixedly connected to the punch holder 232. The punch seat can be limited from deviating, and the punching quality can be improved.
A second punch 2321 is arranged on one side of the punch seat 232, an avoiding groove 121 is arranged on the side wall of the female die 12, and the position of the avoiding groove 121 corresponds to the second punch 2321. The second punch can be prevented from being crashed.
The opposite two sides of the third connecting plate 241 are respectively provided with a second sliding groove 2411, the second sliding groove 2411 is connected with a second sliding block 4 in a sliding manner, one end of the second sliding block 4 is fixedly connected to the fixed seat 5, and the side edge forming male 242 is installed on the fixed seat 5. The deviation of the fixing seat can be limited, and the quality of molding is improved.
The contact surface of the fourth connecting plate 243 and the fixing seat 5 is an inclined surface.
A layer of backing plate 6 is arranged between the fourth connecting plate 243 and the fixed seat 5. The backing plate can set up the polylith according to actual demand to can reach the purpose of adjusting the public position of side shaping, and then can improve fashioned quality.
The two sides of the fourth connecting plate 243 are respectively provided with a connecting block 7, one end of each connecting block 7 is hooked on the corresponding fixing seat 5, and the other end of each connecting block 7 is fixedly connected to the fourth connecting plate 243 through a pin.
A clamping groove 71 is formed in the connecting block 7, the bottom of the clamping groove 71 is in contact with a groove in the fixing seat 5, and the top of the clamping groove 71 is in contact with the top surface of the backing plate 6. The backing plate can be fixed more firmly.
And a plurality of waste sliding plates 8 are respectively arranged on two sides of the lower die mechanism 2. The waste materials can be discharged in time, the damage to the die is avoided, and the purpose of prolonging the service life is achieved.
The working principle is as follows: when a product is processed, the upper die mechanism 1 folds towards the lower die mechanism, the first punch 13 punches a hole on the top surface of the product, the female die 12 and the male die 22 are matched and formed, the upper die base 11 extrudes the fourth connecting plate 243, the second sliders 4 on two sides of the fixing base 5 slide along the second sliding grooves 2411, the fixing base 5 can be limited to deflect, the purpose of improving forming is achieved, the upper die base 11 extrudes the second connecting plate 233 simultaneously, the first sliders on two sides of the punch base slide along the first sliding grooves, the punch base can be limited to deflect, the quality of punching is improved, the limiting block 14 is located on one side of the female die 12, the side punching component 23 and the side forming component 24 are located on the other side of the female die 12, the male die 22 can be prevented from deflecting. Therefore, the invention can effectively solve the problems of poor production quality and low efficiency of parts of the front wall plate of the automobile, can realize one-time completion of a plurality of processing procedures, and achieves the purposes of reducing the occupied area of a factory building and saving manpower.
The above description is only for the preferred embodiment of the present invention, but the scope of the present invention is not limited thereto, and any person skilled in the art should be considered to be within the technical scope of the present invention, and the technical solutions and the inventive concepts thereof according to the present invention should be equivalent or changed within the scope of the present invention.
Claims (9)
1. The utility model provides an improve material punching device that buckles that presses of antetheca part profile size precision which characterized in that includes:
the die assembly comprises an upper die mechanism (1) and a lower die mechanism, wherein the upper die mechanism comprises an upper die base (11), a female die (12), a plurality of first punches (13) and a plurality of limiting blocks (14), the female die (12) is fixedly connected to the upper die base (11), the first punches (13) are connected to the upper die base (11) and extend out of the surface of the female die (12), and the limiting blocks (14) are connected to the upper die base (11) and located on the periphery of the female die (12);
the lower die mechanism (2) comprises a lower die holder (21), a male die (22), a plurality of side punching components (23) and a plurality of side forming components (24), wherein the male die (22), the side punching components (23) and the side forming components (24) are connected to the lower die holder (21), the male die (22) is matched with the female die (12), the side punching components (23) and the side forming components (24) are positioned on the same side, the side punching components (23) comprise first connecting plates (231) fixedly connected to the lower die holder (21), the first connecting plates (231) are slidably connected with a punching head holder (232), the punching head holder (232) is connected with a second connecting plate (233), and the top of the second connecting plate (233) is fixedly connected to the upper die holder (11), the side edge forming part (24) comprises a third connecting plate (241) fixedly connected to the lower die holder (21), a side edge forming male part (242) is connected to the third connecting plate (241) in a sliding mode, a fourth connecting plate (243) is connected to the side edge forming male part (242), and the top of the fourth connecting plate (243) is fixedly connected to the upper die holder (11).
2. The swaging, bending and punching device for improving the profile dimension precision of front wall plate parts according to claim 1, wherein the first connecting plate (231) is provided with first sliding grooves (2311) on opposite sides thereof, the first sliding grooves (2311) are slidably connected with first sliding blocks (3), and one end of each first sliding block (3) is fixedly connected to the punch holder (232).
3. The pressing, bending and punching device for improving the profile dimension precision of front wall plate parts according to claim 2 is characterized in that a second punch (2321) is arranged on one side of the punch seat (232), an avoiding groove (121) is arranged on the side wall of the female die (12), and the position of the avoiding groove (121) corresponds to the second punch (2321).
4. The swaging, bending and punching device for improving the profile dimension precision of the front wall plate part according to claim 1, wherein the third connecting plate (241) is provided with second sliding grooves (2411) on opposite sides thereof, the second sliding grooves (2411) are slidably connected with second sliding blocks (4), one ends of the second sliding blocks (4) are fixedly connected to a fixed seat (5), and the side edge forming male members (242) are mounted on the fixed seat (5).
5. The swaging, bending and punching device for improving the profile dimension precision of front wall plate parts according to claim 4, wherein the contact surface of the fourth connecting plate (243) and the fixed seat (5) is an inclined surface.
6. The pressing, bending and punching device for improving the profile dimension precision of front wall plate parts according to claim 4 is characterized in that at least one layer of cushion plate (6) is arranged between the fourth connecting plate (243) and the fixed seat (5).
7. The pressing, bending and punching device for improving the profile dimension precision of front wall plate parts according to claim 6, wherein connecting blocks (7) are respectively arranged on two sides of the fourth connecting plate (243), one end of each connecting block (7) is hooked on the fixing seat (5), and the other end of each connecting block (7) is fixedly connected to the fourth connecting plate (243) through a pin.
8. The swaging, bending and punching device for improving the profile dimension precision of front wall plate parts according to claim 7, wherein a clamping groove (71) is formed in the connecting block (7), the bottom of the clamping groove (71) is in contact with a groove in the fixing seat (5), and the top of the clamping groove (71) is in contact with the top surface of the backing plate (6).
9. The pressing, bending and punching device for improving the profile dimension precision of front wall plate parts according to claim 1 is characterized in that a plurality of waste sliding plates (8) are respectively arranged on two sides of the lower die mechanism (2).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202110410209.5A CN113210510A (en) | 2021-04-16 | 2021-04-16 | Improve material of pressing of antetheca part profile size precision punching device that buckles |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202110410209.5A CN113210510A (en) | 2021-04-16 | 2021-04-16 | Improve material of pressing of antetheca part profile size precision punching device that buckles |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN113210510A true CN113210510A (en) | 2021-08-06 |
Family
ID=77087555
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202110410209.5A Pending CN113210510A (en) | 2021-04-16 | 2021-04-16 | Improve material of pressing of antetheca part profile size precision punching device that buckles |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN113210510A (en) |
Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1457941A (en) * | 2002-05-16 | 2003-11-26 | 优美克斯股份有限公司 | Sliding inclined wedge punching mold |
| JP2012096252A (en) * | 2010-10-29 | 2012-05-24 | Daihatsu Motor Co Ltd | Method of manufacturing panel assembly, and hemming machining device of the assembly |
| CN106862386A (en) * | 2017-03-11 | 2017-06-20 | 广州永盟汽车零部件有限公司 | A kind of automobile front arm lower carriage stamping mold and stamping system |
| CN108202108A (en) * | 2018-01-23 | 2018-06-26 | 江苏凡润电子有限公司 | The processing mold and its processing method of the backboard frame fixing piece of liquid crystal display |
| CN208162432U (en) * | 2018-04-09 | 2018-11-30 | 郑州信昌汽车部品有限公司 | Punching, side punching, separation composite die |
| CN210614826U (en) * | 2019-04-01 | 2020-05-26 | 无锡威唐工业技术股份有限公司 | Machining die for fixing binding band of automobile oil tank |
-
2021
- 2021-04-16 CN CN202110410209.5A patent/CN113210510A/en active Pending
Patent Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1457941A (en) * | 2002-05-16 | 2003-11-26 | 优美克斯股份有限公司 | Sliding inclined wedge punching mold |
| JP2012096252A (en) * | 2010-10-29 | 2012-05-24 | Daihatsu Motor Co Ltd | Method of manufacturing panel assembly, and hemming machining device of the assembly |
| CN106862386A (en) * | 2017-03-11 | 2017-06-20 | 广州永盟汽车零部件有限公司 | A kind of automobile front arm lower carriage stamping mold and stamping system |
| CN108202108A (en) * | 2018-01-23 | 2018-06-26 | 江苏凡润电子有限公司 | The processing mold and its processing method of the backboard frame fixing piece of liquid crystal display |
| CN208162432U (en) * | 2018-04-09 | 2018-11-30 | 郑州信昌汽车部品有限公司 | Punching, side punching, separation composite die |
| CN210614826U (en) * | 2019-04-01 | 2020-05-26 | 无锡威唐工业技术股份有限公司 | Machining die for fixing binding band of automobile oil tank |
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| RJ01 | Rejection of invention patent application after publication |
Application publication date: 20210806 |
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