CN113664111B - Bending forming die with high precision, high stability and high convenience and process - Google Patents
Bending forming die with high precision, high stability and high convenience and process Download PDFInfo
- Publication number
- CN113664111B CN113664111B CN202110930915.2A CN202110930915A CN113664111B CN 113664111 B CN113664111 B CN 113664111B CN 202110930915 A CN202110930915 A CN 202110930915A CN 113664111 B CN113664111 B CN 113664111B
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- punch
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- 238000005452 bending Methods 0.000 title claims abstract description 16
- 238000000034 method Methods 0.000 title claims abstract description 11
- 238000003825 pressing Methods 0.000 claims description 31
- 238000000465 moulding Methods 0.000 claims description 7
- 238000007493 shaping process Methods 0.000 abstract description 10
- 230000001771 impaired effect Effects 0.000 abstract 1
- 239000002184 metal Substances 0.000 description 5
- 230000004308 accommodation Effects 0.000 description 2
- 238000012986 modification Methods 0.000 description 2
- 230000004048 modification Effects 0.000 description 2
- 238000012545 processing Methods 0.000 description 2
- 238000004080 punching Methods 0.000 description 2
- 238000003466 welding Methods 0.000 description 2
- 230000009286 beneficial effect Effects 0.000 description 1
- 238000013329 compounding Methods 0.000 description 1
- 238000005520 cutting process Methods 0.000 description 1
- 230000007547 defect Effects 0.000 description 1
- 238000013461 design Methods 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- 230000002349 favourable effect Effects 0.000 description 1
- 238000003754 machining Methods 0.000 description 1
- 230000001737 promoting effect Effects 0.000 description 1
- 238000012797 qualification Methods 0.000 description 1
- 238000010008 shearing Methods 0.000 description 1
- 238000005482 strain hardening Methods 0.000 description 1
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
- B21D5/00—Bending sheet metal along straight lines, e.g. to form simple curves
- B21D5/02—Bending sheet metal along straight lines, e.g. to form simple curves on press brakes without making use of clamping means
- B21D5/0209—Tools therefor
-
- 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
- B21D37/12—Particular guiding equipment, e.g. pliers; Special arrangements for interconnection or cooperation of dies
-
- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02P—CLIMATE CHANGE MITIGATION TECHNOLOGIES IN THE PRODUCTION OR PROCESSING OF GOODS
- Y02P40/00—Technologies relating to the processing of minerals
- Y02P40/50—Glass production, e.g. reusing waste heat during processing or shaping
- Y02P40/57—Improving the yield, e-g- reduction of reject rates
Landscapes
- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Mounting, Exchange, And Manufacturing Of Dies (AREA)
Abstract
The invention discloses a bending forming die with high precision, high stability and high convenience and a process, wherein the forming die comprises a lower die and an upper die; the lower die comprises a lower die seat, a forming seat, a guide seat, a baffle plate, a forming sliding block and a first spring; the upper surface of the lower die holder is concavely provided with a containing cavity; the forming seat and the guide seat are both arranged in the accommodating cavity, a cavity is concavely arranged on one side surface of the forming seat, the guide seat is positioned beside the cavity, a chute is formed in the guide seat, the forming sliding block can horizontally slide back and forth and is arranged in the chute, a punch head is arranged at one end of the forming sliding block, the punch head is opposite to the cavity, and the upper die can be vertically movably arranged right above the lower die. Through fixedly setting up a guide holder in the lower mould, inlay the shaping slider in the guide holder, the shaping slider can obtain more excellent length proportion, significantly reduces the motion frictional force to the shaping slider does not take place the friction with the die cavity, and the die cavity can not be impaired, and life is longer, and the economic nature is high.
Description
Technical Field
The invention relates to the technology in the field of mold processing, in particular to a bending forming mold and a process with high precision, high stability and high convenience.
Background
Sheet metal is a comprehensive cold working process for metal sheets, including shearing, punching, cutting, compounding, folding, welding, riveting, splicing, forming and the like, and some metal sheets are generally subjected to plastic deformation by manual or mould punching to form the desired shape and size, and further more complex parts can be formed by welding or a small amount of mechanical working, and the bending process is an important component in sheet metal processing. The forming slide block and the forming seat of the existing bending die for sheet metal machining are directly fixed in the die cavity of the die plate, and the forming slide block and the die cavity of the die plate are rubbed in the bending process of the workpiece, so that the service life of the die cavity is influenced; the reset spring is arranged between the forming sliding block and the forming seat, the spring is pressed to be arranged in the template during assembly, and the spring is easy to pop up during disassembly. Therefore, there is a need to devise a new solution to the above-mentioned problems.
Disclosure of Invention
In view of the above, the present invention aims at overcoming the defects of the prior art, and its main objective is to provide a bending forming mold and process with high precision, high stability and convenience, which has the characteristics of high precision, good stability, long service life, high economy and convenient disassembly and assembly.
In order to achieve the above purpose, the present invention adopts the following technical scheme:
a bending forming die with high precision, high stability and high convenience comprises a lower die and an upper die;
the lower die comprises a lower die seat, a forming seat, a guide seat, a baffle plate, a forming sliding block and a first spring; the upper surface of the lower die holder is concavely provided with a containing cavity; the forming seat and the guide seat are both arranged in the accommodating cavity, a cavity is concavely formed in one side surface of the forming seat, the guide seat is positioned beside the cavity, a sliding groove is formed in the guide seat, and a fixing groove is formed in one side surface, close to the forming block, of the guide seat and is communicated with the sliding groove; the baffle is inserted in the fixed groove; the molding slide block can horizontally slide back and forth and is arranged in the chute, one end of the molding slide block is provided with a punch head, the punch head faces the cavity, and the other end of the molding slide block is provided with a first pressing inclined surface; the first spring is arranged in the chute, one end of the first spring is propped against the forming sliding block, and the other end of the first spring is propped against the inner side surface of the baffle plate;
the upper die is movably arranged right above the lower die, and comprises an upper die seat, an adjusting punch, a second spring and an adjusting rod; the upper die holder is internally provided with a first accommodating groove with a downward opening, and the side surface of the upper die holder is provided with a second accommodating groove communicated with the first accommodating groove; the adjusting punch is arranged in the first accommodating groove in a vertically movable mode, the lower end of the adjusting punch is provided with a second pressing inclined plane, the second pressing inclined plane is mutually abutted with the first pressing inclined plane, the adjusting punch moves vertically to enable the forming sliding block to move horizontally back and forth, and the upper end of the adjusting punch is provided with a third pressing inclined plane; the second spring is arranged in the first accommodating groove and promotes the adjusting punch to move upwards; the adjusting rod can be horizontally arranged in the second accommodating groove in a back-and-forth movable mode in the lateral direction, a fourth pressing inclined plane is arranged at the inner end of the adjusting rod, the fourth pressing inclined plane is mutually abutted with the third pressing inclined plane, the adjusting rod horizontally moves back-and-forth to enable the adjusting punch to move up and down, and an adjusting screw rod is connected between the outer end of the adjusting rod and the upper die holder.
As a preferable scheme, the forming sliding block comprises a base part, the punch part integrally extends out laterally at one side of the top end of the base part, the first pressing inclined plane is positioned on the other side of the top end of the base part, the inner side surface of the base part is concavely provided with a containing hole, the containing hole is opposite to the baffle plate, the first spring is positioned in the containing hole, one end of the first spring is propped against the bottom surface of the containing hole, and the other end of the first spring is propped against the inner side surface of the baffle plate.
As a preferable scheme, guide grooves are concavely formed on two side surfaces of the base, guide rails are convexly arranged on two side inner walls of the guide grooves, and the guide rails are embedded in the guide grooves and are in sliding fit with the guide grooves.
As a preferable scheme, the fixing groove is a dovetail groove, and the baffle is a dovetail block matched with the dovetail groove.
As a preferable scheme, the die cavity is of a triangular structure which is gradually increased from top to bottom.
As a preferable scheme, the outer end of the adjusting rod is provided with a through hole and a first screw hole, the side surface of the upper die holder is provided with a second screw hole, the second screw hole is opposite to the through hole, two adjusting screws are arranged, one of the two adjusting screws penetrates through the through hole to be in threaded connection with the second screw hole, and the other end of the adjusting screw is in threaded connection with the first screw hole and abuts against the outer side surface of the upper die holder.
A bending molding process with high precision, high stability and high convenience comprises the following steps:
(1) According to the angle of the workpiece to be molded and bent, the adjusting screw rod is rotated to enable the adjusting rod to be positioned at a proper horizontal position, so that the adjusting punch is positioned at a proper height position;
(2) After the upper die and the lower die are opened, the pre-bent workpiece is placed on the top surface of the forming seat for positioning, and the part to be bent is positioned on the outer side surface of the cavity;
(3) The upper die and the lower die are clamped, and the adjusting punch moves downwards to enable the forming sliding block to move close to the workpiece, so that the punch part bends and forms the workpiece;
(4) And opening the upper die and the lower die, and resetting the forming sliding block to leave the workpiece under the action of the first spring, so that the workpiece can be taken out.
Compared with the prior art, the invention has obvious advantages and beneficial effects, and in particular, the technical scheme can be as follows:
1. the forming sliding block is embedded in the guide seat by fixedly arranging the guide seat in the lower die, so that the forming sliding block can obtain a better length-height ratio, the movement friction force is greatly reduced, the forming sliding block does not rub with the cavity, the cavity is not damaged, the service life is longer, and the economy is high; meanwhile, the first spring is arranged in the chute of the guide seat, and the side face of the chute is provided with the spring baffle, so that the assembly and the disassembly are convenient, the first spring is not required to be pressed for loading, and the spring cannot pop up during the disassembly, so that the assembly and the disassembly are convenient and quick.
2. Through being provided with the guide rail in the both sides of spout to set up the guide slot in the both sides of shaping slider, guide rail and guide slot mutually support and guarantee the motion precision of shaping slider, and the precision is high, and stability is better, thereby is favorable to promoting the quality of shaping product.
In order to more clearly illustrate the structural features and efficacy of the present invention, the present invention will be described in detail below with reference to the accompanying drawings and examples.
Drawings
FIG. 1 is an assembled schematic view of a preferred embodiment of the present invention;
FIG. 2 is a partially assembled schematic illustration of a preferred embodiment of the present invention;
FIG. 3 is a partially exploded view of the preferred embodiment of the present invention;
fig. 4 is another partially exploded view of the preferred embodiment of the present invention.
The attached drawings are used for identifying and describing:
10. lower die 101 and accommodating cavity
102. Cavity 103 and chute
104. Fixed slot 105 and receiving hole
106. Guide groove 11 and lower die holder
12. Shaping seat 13 and guiding seat
131. Guide rail 14, baffle
15. Shaping slide 151, base
152. Punch 153, first pressing inclined plane
16. First spring 20, upper die
201. First accommodation groove 202 and second accommodation groove
203. Through hole 204, first screw hole
205. Second screw hole 21, upper die holder
22. Adjusting punch 221, second pressing inclined plane
222. Third pressing inclined plane 23, second spring
24. Adjusting lever 241, fourth pressing inclined plane
25. Adjusting screw 30 and workpiece.
Detailed Description
Referring to fig. 1 to 4, a specific structure of a preferred embodiment of the present invention is shown, which includes a lower mold 10 and an upper mold 20.
The lower die 10 comprises a lower die holder 11, a forming seat 12, a guide seat 13, a baffle 14, a forming sliding block 15 and a first spring 16.
The upper surface of the lower die holder 11 is concavely provided with a containing cavity 101.
The forming seat 12 and the guide seat 13 are both arranged in the accommodating cavity 101, a cavity 102 is concavely arranged on one side surface of the forming seat 12, and the cavity 102 is of a triangle structure which gradually increases from top to bottom; the guide seat 13 is positioned beside the cavity 102, a sliding groove 103 is formed in the guide seat 13, a fixing groove 104 is formed in one side surface, close to the forming block 12, of the guide seat 103, and the fixing groove 104 is communicated with the sliding groove 103.
The baffle 14 is inserted into the fixing groove 104, the fixing groove 104 is a dovetail groove, and the baffle 14 is a dovetail block matched with the dovetail groove.
The forming slide block 15 is slidably disposed in the chute 103, one end of the forming slide block has a punch portion 152, the punch portion 152 faces the cavity 102, and the other end of the forming slide block 15 has a first pressing inclined surface 153. In this embodiment, the forming slider 15 includes a base 151, the punch portion 152 integrally extends laterally from one side of the top end of the base, the first pressing inclined surface 153 is located on the other side of the top end of the base 151, the inner side of the base 151 is concavely provided with a receiving hole 105, and the receiving hole 105 is opposite to the baffle 14; guide grooves 106 are concavely formed on two side surfaces of the base 151, guide rails 131 are convexly arranged on two side inner walls of the sliding groove 103, and the guide rails 131 are embedded in the guide grooves 106 and are in sliding fit with the guide grooves 106.
The first spring 16 is arranged in the chute 103, one end of the first spring 16 is propped against the forming sliding block 15, and the other end of the first spring 16 is propped against the inner side surface of the baffle 14; the first spring 16 is located in the accommodating hole 105, one end of the first spring 16 abuts against the bottom surface of the accommodating hole 105, and the other end abuts against the inner side surface of the baffle 14.
The upper die 20 is movably disposed right above the lower die 10, and the upper die 20 includes an upper die holder 21, an adjusting punch 22, a second spring 23, and an adjusting rod 24.
The upper die holder 21 has a first accommodating groove 201 with a downward opening, and a second accommodating groove 202 communicating with the first accommodating groove 201 is formed on a side surface of the upper die holder 21.
The adjusting punch 22 is movably disposed in the first accommodating groove 201, the lower end of the adjusting punch 22 has a second pressing inclined plane 221, the second pressing inclined plane 221 is in contact with the first pressing inclined plane 153, the adjusting punch 22 moves up and down to enable the forming slide block 15 to move horizontally back and forth, and the upper end of the adjusting punch 22 has a third pressing inclined plane 222.
The second spring 23 is disposed in the first receiving groove 201 and urges the adjustment punch 22 to move upward.
The adjusting rod 24 is movably disposed in the second accommodating groove 202 horizontally and horizontally, a fourth pressing inclined plane 241 is disposed at the inner end of the adjusting rod 24, the fourth pressing inclined plane 241 and the third pressing inclined plane 222 are mutually abutted, the adjusting rod 24 horizontally moves back and forth to urge the adjusting punch 22 to move up and down, and an adjusting screw 25 is connected between the outer end of the adjusting rod 24 and the upper die holder 21. The outer end of the adjusting rod 24 is provided with a through hole 203 and a first screw hole 204, the side surface of the upper die holder 21 is provided with a second screw hole 205, the second screw hole 205 is opposite to the through hole 203, two adjusting screws 25 are provided, one adjusting screw 25 passes through the through hole 203 to be in threaded connection with the second screw hole 205, and the other adjusting screw 25 is in threaded connection with the first screw hole 204 and is propped against the outer side surface of the upper die holder 21.
The invention also discloses a bending forming process with high precision, high stability and high convenience, which comprises the following steps:
(1) The adjusting rod 24 is positioned at a proper horizontal position by rotating the adjusting screw 25 according to the angle of the bending to be formed of the workpiece 30, so that the adjusting punch 22 is positioned at a proper height position.
(2) After the upper die 20 and the lower die 10 are opened, the pre-bent workpiece 30 is placed on the top surface of the forming seat 12 for positioning, and the part to be bent is positioned on the outer side surface of the cavity 102.
(3) The upper die 20 and the lower die 10 are clamped, and the adjusting punch 22 moves downwards to drive the forming slide block 15 to move close to the workpiece 30, so that the punch part 152 bends and forms the workpiece 30.
(4) The upper die 20 and the lower die 10 are opened, the forming slide block 15 is reset to leave the workpiece 30 under the action of the first spring 16, and the workpiece 30 can be taken out at this time.
After the treatment, the dimensional tolerance of the formed workpiece 30 is +/-0.01 mm, so that high precision is achieved, the product quality is very good, and the qualification rate is very high.
The design focus of the invention is that:
1. the forming sliding block is embedded in the guide seat by fixedly arranging the guide seat in the lower die, so that the forming sliding block can obtain a better length-height ratio, the movement friction force is greatly reduced, the forming sliding block does not rub with the cavity, the cavity is not damaged, the service life is longer, and the economy is high; meanwhile, the first spring is arranged in the chute of the guide seat, and the side face of the chute is provided with the spring baffle, so that the assembly and the disassembly are convenient, the first spring is not required to be pressed for loading, and the spring cannot pop up during the disassembly, so that the assembly and the disassembly are convenient and quick.
2. Through being provided with the guide rail in the both sides of spout to set up the guide slot in the both sides of shaping slider, guide rail and guide slot mutually support and guarantee the motion precision of shaping slider, and the precision is high, and stability is better.
The foregoing description is only a preferred embodiment of the present invention, and is not intended to limit the technical scope of the present invention, so any minor modifications, equivalent changes and modifications made to the above embodiments according to the technical principles of the present invention are still within the scope of the technical solutions of the present invention.
Claims (4)
1. The utility model provides a high accuracy high stability and high forming die that bends of convenience which characterized in that: comprises a lower die and an upper die; the lower die comprises a lower die seat, a forming seat, a guide seat, a baffle plate, a forming sliding block and a first spring; the upper surface of the lower die holder is concavely provided with a containing cavity; the forming seat and the guide seat are both arranged in the accommodating cavity, a cavity is concavely formed in one side surface of the forming seat, the guide seat is positioned beside the cavity, a sliding groove is formed in the guide seat, and a fixing groove is formed in one side surface, close to the forming block, of the guide seat and is communicated with the sliding groove; the baffle is inserted in the fixed groove; the molding slide block can horizontally slide back and forth and is arranged in the chute, one end of the molding slide block is provided with a punch head, the punch head faces the cavity, and the other end of the molding slide block is provided with a first pressing inclined surface; the first spring is arranged in the chute, one end of the first spring is propped against the forming sliding block, and the other end of the first spring is propped against the inner side surface of the baffle plate;
the upper die is movably arranged right above the lower die, and comprises an upper die seat, an adjusting punch, a second spring and an adjusting rod; the upper die holder is internally provided with a first accommodating groove with a downward opening, and the side surface of the upper die holder is provided with a second accommodating groove communicated with the first accommodating groove; the adjusting punch is arranged in the first accommodating groove in a vertically movable mode, the lower end of the adjusting punch is provided with a second pressing inclined plane, the second pressing inclined plane is mutually abutted with the first pressing inclined plane, the adjusting punch moves vertically to enable the forming sliding block to move horizontally back and forth, and the upper end of the adjusting punch is provided with a third pressing inclined plane; the second spring is arranged in the first accommodating groove and promotes the adjusting punch to move upwards; the adjusting rod can be horizontally arranged in the second accommodating groove in a back-and-forth movable mode in the lateral direction, a fourth pressing inclined plane is arranged at the inner end of the adjusting rod, the fourth pressing inclined plane is mutually abutted with the third pressing inclined plane, the adjusting rod horizontally moves back-and-forth to enable the adjusting punch to move up and down, and an adjusting screw rod is connected between the outer end of the adjusting rod and the upper die holder;
the forming sliding block comprises a base part, the punch part integrally extends out laterally at one side of the top end of the base part, the first pressing inclined surface is positioned on the other side of the top end of the base part, the inner side surface of the base part is concavely provided with a containing hole, the containing hole is opposite to the baffle plate, the first spring is positioned in the containing hole, one end of the first spring is propped against the bottom surface of the containing hole, and the other end of the first spring is propped against the inner side surface of the baffle plate; the fixed groove is a dovetail groove, and the baffle is a dovetail block matched with the dovetail groove;
the outer end of the adjusting rod is provided with a through hole and a first screw hole, the side surface of the upper die holder is provided with a second screw hole, the second screw hole is opposite to the through hole, two adjusting screws are arranged, one of the two adjusting screws penetrates through the through hole to be in threaded connection with the second screw hole, and the other end of the adjusting screw is in threaded connection with the first screw hole and abuts against the outer side surface of the upper die holder.
2. The bending mold with high precision, high stability and high convenience according to claim 1, wherein: guide grooves are concavely formed in the two side faces of the base, guide rails are convexly arranged on the inner walls of the two sides of the sliding groove, and the guide rails are embedded in the guide grooves and are in sliding fit with the guide grooves.
3. The bending mold with high precision, high stability and high convenience according to claim 1, wherein: the die cavity is of a triangle structure which gradually increases from top to bottom.
4. A bending forming process with high precision, high stability and high convenience is characterized in that: a bending mold with high precision, high stability and high convenience according to any one of claims 1 to 3, comprising the steps of:
(1) According to the angle of the workpiece to be molded and bent, the adjusting screw rod is rotated to enable the adjusting rod to be positioned at a proper horizontal position, so that the adjusting punch is positioned at a proper height position;
(2) After the upper die and the lower die are opened, the pre-bent workpiece is placed on the top surface of the forming seat for positioning, and the part to be bent is positioned on the outer side surface of the cavity;
(3) The upper die and the lower die are clamped, and the adjusting punch moves downwards to enable the forming sliding block to move close to the workpiece, so that the punch part bends and forms the workpiece;
(4) And opening the upper die and the lower die, and resetting the forming sliding block to leave the workpiece under the action of the first spring, so that the workpiece can be taken out.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202110930915.2A CN113664111B (en) | 2021-08-13 | 2021-08-13 | Bending forming die with high precision, high stability and high convenience and process |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202110930915.2A CN113664111B (en) | 2021-08-13 | 2021-08-13 | Bending forming die with high precision, high stability and high convenience and process |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN113664111A CN113664111A (en) | 2021-11-19 |
| CN113664111B true CN113664111B (en) | 2023-09-08 |
Family
ID=78542743
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202110930915.2A Active CN113664111B (en) | 2021-08-13 | 2021-08-13 | Bending forming die with high precision, high stability and high convenience and process |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN113664111B (en) |
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| CN107737841A (en) * | 2017-11-30 | 2018-02-27 | 海信（山东）空调有限公司 | Lateral bending device |
| CN208728432U (en) * | 2018-06-02 | 2019-04-12 | 天津博世川页科技有限公司 | A kind of automobile guide rail piercing die |
| CN208879483U (en) * | 2018-07-24 | 2019-05-21 | 东莞市罗丹伊园景观装饰工程有限公司 | A kind of efficient molding die |
| CN112547873A (en) * | 2019-09-25 | 2021-03-26 | 河南森源电气股份有限公司 | Workpiece bending device |
| CN210632703U (en) * | 2019-09-29 | 2020-05-29 | 广东昇辉实业有限公司 | Angle steel frock of bending |
| WO2021120657A1 (en) * | 2019-12-17 | 2021-06-24 | 苏州和林微纳科技股份有限公司 | Side punching mechanism having movable guide block |
| CN211679597U (en) * | 2019-12-23 | 2020-10-16 | 广东龙辉科技有限公司 | Sliding pressure riveting die |
| CN213256395U (en) * | 2020-08-23 | 2021-05-25 | 惠州市炜旭精密部件有限公司 | Continuous bending die production device |
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Denomination of invention: High precision, high stability, and high convenience bending forming molds and processes Granted publication date: 20230908 Pledgee: Shenzhen small and medium sized small loan Co.,Ltd. Pledgor: SHENZHEN CHUANGYITONG TECHNOLOGY Co.,Ltd. Registration number: Y2024980006731 |
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