CN112246937B - Anti-cracking rounding forming process for notebook shell - Google Patents
Anti-cracking rounding forming process for notebook shell Download PDFInfo
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- CN112246937B CN112246937B CN202011041630.5A CN202011041630A CN112246937B CN 112246937 B CN112246937 B CN 112246937B CN 202011041630 A CN202011041630 A CN 202011041630A CN 112246937 B CN112246937 B CN 112246937B
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- die
- aluminum plate
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- lower die
- punching
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- 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
- B21D21/00—Combined processes according to methods covered by groups B21D1/00 - B21D19/00
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- 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
- B21D19/00—Flanging or other edge treatment, e.g. of tubes
- B21D19/08—Flanging or other edge treatment, e.g. of tubes by single or successive action of pressing tools, e.g. vice jaws
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- 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
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- 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
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- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Shaping Metal By Deep-Drawing, Or The Like (AREA)
- Bending Of Plates, Rods, And Pipes (AREA)
- Punching Or Piercing (AREA)
Abstract
The invention relates to the technical field of notebook shell forming processes, in particular to a cracking-proof rounding forming process for a notebook shell, which solves the defects in the prior art and comprises two sets of dies, namely a first die and a second die; the method comprises the following steps: s1, placing the aluminum plate in the first die, and enabling four corners of the aluminum plate to form 90-degree right-angle edges; s2, placing the punched aluminum plate in a second die, and punching right-angled edges from the direction of 40-50 degrees by using a punching push block to dispersedly bend the right-angled edges; and S3, cutting the punched aluminum plate, and removing redundant metal at the corners to form round edges at each corner. The inclined direction punch forming technology is adopted, after 90-degree right-angle sides are formed through one-time punch forming, the dies are used for punching the right-angle sides from 45-50-degree angles, so that metal sheets on the right-angle sides are scattered and bent, cracking cannot be caused, and the area of the finally formed round edge is large.
Description
Technical Field
The invention relates to the technical field of notebook shell forming processes, in particular to a notebook shell anti-cracking round-bag forming process.
Background
The stamping process is a production technology for obtaining product parts with certain shape, size and performance by directly applying deformation force to a plate in a die by means of the power of conventional or special stamping equipment and deforming the plate. The plate, the die and the equipment are three elements of stamping processing. The hot stamping and the cold stamping are divided according to the stamping processing temperature. The former is suitable for processing sheet materials with high deformation resistance and poor plasticity; the latter is carried out at room temperature and is a common stamping method for thin sheets. It is one of the main methods of metal plastic working (or pressure working), and also belongs to the material forming engineering technology.
The length of the corner wrapping circle of the notebook shell in the prior art is short, components and parts in the notebook are not protected in place, the inside of the notebook is easily damaged, a conventional forming process is adopted, as shown in fig. 3, a product is stamped from one side of a right-angle edge, and even if the area of the wrapping circle is increased, the corners are damaged and cracked due to extrusion between metals, so that the quality of the product is affected.
Disclosure of Invention
The invention aims to solve the defects in the prior art, and provides a notebook shell anti-cracking round-packed forming process.
In order to achieve the purpose, the invention adopts the following technical scheme:
a notebook shell anti-cracking rounding forming process relates to two sets of dies, namely a first die and a second die;
the first die comprises a first lower die and a top plate, a first guide pillar is fixed between the first lower die and the top plate through a screw, a first upper die is assembled outside the first guide pillar in a sliding mode, a bending female die and a bending male die are respectively installed at the top of the first lower die and the bottom of the first upper die, and a female die cavity is formed in the bending female die;
the second die comprises a second lower die and a second upper die, a second guide pillar is fixed at the top of the second lower die, the second upper die is assembled outside the second guide pillar in a sliding mode, symmetrically arranged wedge blocks are fixed at the bottom of the second upper die through countersunk bolts, a stamping push block is arranged at the top of the second lower die in a sliding mode, the stamping push block is in sliding fit with the wedge blocks, and a placing groove is formed in the second lower die;
the method comprises the following steps:
s1, selecting an aluminum plate to be placed in a first mold in a mold opening state, enabling the aluminum plate to be located in a cavity of a female mold, starting the first mold, enabling a first upper mold to move downwards to drive a bending male mold and the bending female mold to be matched so that four corners of the aluminum plate form 90-degree right-angle sides;
s2, after the first die is reset, placing the punched aluminum plate in a second die in a die opening state, placing the aluminum plate in a placing groove of a second lower die, starting the second die, moving a second upper die of the second die downwards along a second guide pillar for die closing, driving a wedge block to simultaneously move downwards by the second upper die, sliding a punching push block along the top of the second lower die under the extrusion action of the wedge block, and punching the right-angle side from the direction of 40-50 degrees by the punching push block to make the right-angle side be scattered and bent;
and S3, taking down the aluminum plate after the second die is reset, cutting the punched aluminum plate, and removing redundant metal at the corners to form round edges.
Preferably, the aluminum plate is made of AL 5052.
The invention has the beneficial effects that: compared with the prior art, the invention adopts an inclined-direction punch forming process, after 90-degree right-angle sides are formed by one-time punch forming, the dies are used for punching the right-angle sides from an angle of 45-50 degrees, so that metal sheets of the right-angle sides are scattered and bent, cracking is avoided, the finally formed round-covered edges are large in area, components inside the notebook can be effectively protected, and the notebook is suitable for popularization and use.
Drawings
FIG. 1 is a schematic view of a single molding process according to the present invention;
FIG. 2 is a schematic view of the secondary molding proposed by the present invention;
FIG. 3 is a schematic diagram of a prior art stamping process;
FIG. 4 is a schematic structural view of a first mold according to the present invention;
fig. 5 is a schematic structural view of a second mold according to the present invention.
In the figure: the stamping die comprises an aluminum plate 1, a right-angle edge 2, a round edge 3, a first die 4, a first lower die 41, a top plate 42, a first upper die 43, a bending male die 44, a bending female die 45, a female die cavity 46, a first guide pillar 47, a second die 5, a second lower die 51, a second upper die 52, a second guide pillar 53, a wedge block 54 and a stamping push block 55.
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.
Referring to fig. 1-4, a notebook shell cracking-prevention rounding forming process relates to two sets of dies, namely a first die 4 and a second die 5; the first mold 4 comprises a first lower mold 41 and a top plate 42, a first guide post 47 is fixed between the first lower mold 41 and the top plate 42 through a screw, a first upper mold 43 is assembled outside the first guide post 47 in a sliding manner, a bending female mold 45 and a bending male mold 44 are respectively installed at the top of the first lower mold 41 and the bottom of the first upper mold 43, and a female mold cavity 46 is formed in the bending female mold 45; the second die 5 comprises a second lower die 51 and a second upper die 52, a second guide post 53 is fixed at the top of the second lower die 51, the second upper die 52 is slidably assembled outside the second guide post 53, symmetrically-arranged wedges 54 are fixed at the bottom of the second upper die 52 through countersunk bolts, a stamping push block 55 is slidably arranged at the top of the second lower die 51, the stamping push block 55 is in sliding fit with the wedges 54, and a placing groove is formed in the second lower die 51;
the invention provides a notebook computer shell anti-cracking round-packed molding process which comprises the following steps: the method comprises the following steps:
s1, selecting an aluminum plate 1 to be placed in a first mold 4 in a mold opening state, wherein the aluminum plate 1 is made of AL5052, the aluminum plate 1 is located in a cavity 46, starting the first mold 4, and driving a bending male mold 44 and a bending female mold 45 to be closed by downward movement of a first upper mold 43 so that four corners of the aluminum plate 1 form 90-degree right-angle sides 2;
s2, after the first die 4 is reset, placing the punched aluminum plate 1 in a second die 5 in a die opening state, placing the aluminum plate 1 in a placing groove of a second lower die 51, starting the second die 5, moving a second upper die 52 of the second die 5 downwards along a second guide pillar 53 to close the die, driving a wedge block 54 to simultaneously move downwards by the second upper die 52, sliding a punching push block 55 along the top of the second lower die 51 under the extrusion action of the wedge block 54, punching the right-angle edge 2 from 40-50 degrees by the punching push block 55, and enabling the right-angle edge 2 to be scattered and bent;
and S3, taking down the aluminum plate 1 after the second die 5 is reset, cutting the punched aluminum plate 1, and removing redundant metal at corners to form rounded edges 3 at the corners.
According to the invention, an inclined-direction punch forming process is adopted, after 90-degree right-angle sides are formed through one-step punch forming, the right-angle sides are punched from an angle of 45-50 degrees by using a die, so that metal sheets of the right-angle sides 2 are scattered and bent, cracking is avoided, the area of the finally formed round-covered sides 3 is large, components in a notebook can be effectively protected, and the notebook is suitable for popularization and use.
The first embodiment of the invention provides a notebook computer shell anti-cracking round-packed forming process, which comprises the following steps: the method comprises the following steps:
s1, selecting an aluminum plate 1 to be placed in a first mold 4 in a mold opening state, wherein the aluminum plate 1 is made of AL5052, the aluminum plate 1 is located in a cavity 46, starting the first mold 4, and driving a bending male mold 44 and a bending female mold 45 to be closed by downward movement of a first upper mold 43 so that four corners of the aluminum plate 1 form 90-degree right-angle sides 2;
s2, after the first die 4 is reset, placing the punched aluminum plate 1 in a second die 5 in a die opening state, placing the aluminum plate 1 in a placing groove of a second lower die 51, starting the second die 5, moving a second upper die 52 of the second die 5 downwards along a second guide pillar 53 for die assembly, driving a wedge block 54 to simultaneously move downwards by the second upper die 52, sliding a punching push block 55 along the top of the second lower die 51 under the extrusion action of the wedge block 54, punching the right-angle side 2 from the 40-degree direction by the punching push block 55, and enabling the right-angle side 2 to be scattered and bent;
s3, taking down the aluminum plate 1 after the second die 5 is reset, cutting the punched aluminum plate 1, removing redundant metal at corners, and enabling the corners to form rounded edges 3 to obtain a first finished product.
In a second embodiment, a notebook computer case anti-cracking rounding forming process includes the following steps: the method comprises the following steps:
s1, selecting an aluminum plate 1 to be placed in a first mold 4 in a mold opening state, wherein the aluminum plate 1 is made of AL5052, the aluminum plate 1 is located in a cavity 46, starting the first mold 4, and driving a bending male mold 44 and a bending female mold 45 to be closed by downward movement of a first upper mold 43 so that four corners of the aluminum plate 1 form 90-degree right-angle sides 2;
s2, after the first die 4 is reset, placing the punched aluminum plate 1 in a second die 5 in a die opening state, placing the aluminum plate 1 in a placing groove of a second lower die 51, starting the second die 5, moving a second upper die 52 of the second die 5 downwards along a second guide pillar 53 to close the die, driving a wedge block 54 to simultaneously move downwards by the second upper die 52, sliding a punching push block 55 along the top of the second lower die 51 under the extrusion action of the wedge block 54, punching the right-angle edge 2 from a 45-degree direction by the punching push block 55, and enabling the right-angle edge 2 to be scattered and bent;
and S3, taking down the aluminum plate 1 after the second die 5 is reset, cutting the punched aluminum plate 1, removing redundant metal at corners, and forming rounded edges 3 at the corners to obtain a finished product II.
In a third embodiment, a notebook computer case anti-cracking rounding forming process includes the following steps: the method comprises the following steps:
s1, selecting an aluminum plate 1 to be placed in a first mold 4 in a mold opening state, wherein the aluminum plate 1 is made of AL5052, the aluminum plate 1 is located in a cavity 46, starting the first mold 4, and driving a bending male mold 44 and a bending female mold 45 to be closed by downward movement of a first upper mold 43 so that four corners of the aluminum plate 1 form 90-degree right-angle sides 2;
s2, after the first die 4 is reset, placing the punched aluminum plate 1 in a second die 5 in a die opening state, placing the aluminum plate 1 in a placing groove of a second lower die 51, starting the second die 5, moving a second upper die 52 of the second die 5 downwards along a second guide pillar 53 to close the die, driving a wedge block 54 to simultaneously move downwards by the second upper die 52, sliding a punching push block 55 along the top of the second lower die 51 under the extrusion action of the wedge block 54, punching the right-angle side 2 from a 50-degree direction by the punching push block 55, and enabling the right-angle side 2 to be scattered and bent;
and S3, taking down the aluminum plate 1 after the second die 5 is reset, cutting the punched aluminum plate 1, removing redundant metal at corners, and forming rounded edges 3 at the corners to obtain a finished product III.
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 (2)
1. A notebook shell anti-cracking rounding forming process is characterized in that the process relates to two sets of dies, namely a first die (4) and a second die (5);
the first die (4) comprises a first lower die (41) and a top plate (42), a first guide pillar (47) is fixed between the first lower die (41) and the top plate (42) through screws, a first upper die (43) is assembled outside the first guide pillar (47) in a sliding mode, a bending female die (45) and a bending male die (44) are respectively installed at the top of the first lower die (41) and the bottom of the first upper die (43), and a female die cavity (46) is formed in the bending female die (45);
the second die (5) comprises a second lower die (51) and a second upper die (52), a second guide post (53) is fixed at the top of the second lower die (51), the second upper die (52) is assembled outside the second guide post (53) in a sliding mode, symmetrically-arranged wedge blocks (54) are fixed at the bottom of the second upper die (52) through countersunk bolts, a stamping push block (55) is arranged at the top of the second lower die (51) in a sliding mode, the stamping push block (55) is in sliding fit with the wedge blocks (54), and a placing groove is formed in the second lower die (51);
the process comprises the following steps:
s1, selecting an aluminum plate (1) to be placed in a first mold (4) in a mold opening state, enabling the aluminum plate (1) to be located in a female mold cavity (46), starting the first mold (4), enabling a first upper mold (43) to move downwards to drive a bending male mold (44) and a bending female mold (45) to be matched, and enabling four corners of the aluminum plate (1) to form 90-degree right-angle sides (2);
s2, after the first die (4) is reset, placing the aluminum plate (1) which is punched inside a second die (5) in a die opening state, placing the aluminum plate (1) inside a placing groove of a second lower die (51), starting the second die (5), moving a second upper die (52) of the second die (5) downwards along a second guide pillar (53) to close the die, driving a wedge block (54) to move downwards by the second upper die (52), sliding a punching push block (55) along the top of the second lower die (51) under the extrusion action of the wedge block (54), punching the right-angle side (2) from the direction of 40-50 degrees by the punching push block (55), and enabling the right-angle side (2) to be scattered and bent;
and S3, taking down the aluminum plate (1) after the second die (5) is reset, cutting the punched aluminum plate (1), and removing redundant metal at the corners to form round edges (3) at all corners.
2. The notebook shell anti-cracking rounding forming process according to claim 1, characterized in that the aluminum plate (1) is made of AL 5052.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202011041630.5A CN112246937B (en) | 2020-09-28 | 2020-09-28 | Anti-cracking rounding forming process for notebook shell |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202011041630.5A CN112246937B (en) | 2020-09-28 | 2020-09-28 | Anti-cracking rounding forming process for notebook shell |
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| Publication Number | Publication Date |
|---|---|
| CN112246937A CN112246937A (en) | 2021-01-22 |
| CN112246937B true CN112246937B (en) | 2022-03-08 |
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| Application Number | Title | Priority Date | Filing Date |
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| CN202011041630.5A Active CN112246937B (en) | 2020-09-28 | 2020-09-28 | Anti-cracking rounding forming process for notebook shell |
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Families Citing this family (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN116274656B (en) * | 2023-02-23 | 2024-03-29 | 苏州炳荣精密五金制品有限公司 | Die and method for integrally forming notebook computer rounding and shell |
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| JP2005240083A (en) * | 2004-02-25 | 2005-09-08 | Kobe Steel Ltd | Method for molding aluminum alloy material |
| CN201684838U (en) * | 2010-01-12 | 2010-12-29 | 东莞中兴电子有限公司 | Forming mold structure for enclosing and forming product |
| CN102784843A (en) * | 2012-08-14 | 2012-11-21 | 昆山旭虹精密零组件有限公司 | 90-degree bent stamping part mold and forming process thereof |
| CN103920779A (en) * | 2013-10-08 | 2014-07-16 | 湖北省齐星汽车车身股份有限公司 | Inward flanging process and die for complex closed thick plates |
| JP2017221957A (en) * | 2016-06-14 | 2017-12-21 | 三菱アルミニウム株式会社 | Bending processing method of aluminum resin composite laminate plate |
| CN111545616A (en) * | 2020-04-20 | 2020-08-18 | 广德竹昌电子科技有限公司 | Method for forming inner buckle wrapping circle of notebook computer shell |
-
2020
- 2020-09-28 CN CN202011041630.5A patent/CN112246937B/en active Active
Patent Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2005240083A (en) * | 2004-02-25 | 2005-09-08 | Kobe Steel Ltd | Method for molding aluminum alloy material |
| CN201684838U (en) * | 2010-01-12 | 2010-12-29 | 东莞中兴电子有限公司 | Forming mold structure for enclosing and forming product |
| CN102784843A (en) * | 2012-08-14 | 2012-11-21 | 昆山旭虹精密零组件有限公司 | 90-degree bent stamping part mold and forming process thereof |
| CN103920779A (en) * | 2013-10-08 | 2014-07-16 | 湖北省齐星汽车车身股份有限公司 | Inward flanging process and die for complex closed thick plates |
| JP2017221957A (en) * | 2016-06-14 | 2017-12-21 | 三菱アルミニウム株式会社 | Bending processing method of aluminum resin composite laminate plate |
| CN111545616A (en) * | 2020-04-20 | 2020-08-18 | 广德竹昌电子科技有限公司 | Method for forming inner buckle wrapping circle of notebook computer shell |
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| CN112246937A (en) | 2021-01-22 |
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