CN115415804A - Processing technology for punching display screen back plate - Google Patents
Processing technology for punching display screen back plate Download PDFInfo
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- CN115415804A CN115415804A CN202211110122.7A CN202211110122A CN115415804A CN 115415804 A CN115415804 A CN 115415804A CN 202211110122 A CN202211110122 A CN 202211110122A CN 115415804 A CN115415804 A CN 115415804A
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- Prior art keywords
- hole
- back plate
- punching
- milling
- aperture
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B23—MACHINE TOOLS; METAL-WORKING NOT OTHERWISE PROVIDED FOR
- B23P—METAL-WORKING NOT OTHERWISE PROVIDED FOR; COMBINED OPERATIONS; UNIVERSAL MACHINE TOOLS
- B23P23/00—Machines or arrangements of machines for performing specified combinations of different metal-working operations not covered by a single other subclass
- B23P23/04—Machines or arrangements of machines for performing specified combinations of different metal-working operations not covered by a single other subclass for both machining and other metal-working operations
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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
- B21D28/00—Shaping by press-cutting; Perforating
- B21D28/24—Perforating, i.e. punching holes
- B21D28/26—Perforating, i.e. punching holes in sheets or flat parts
-
- 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
- B23—MACHINE TOOLS; METAL-WORKING NOT OTHERWISE PROVIDED FOR
- B23P—METAL-WORKING NOT OTHERWISE PROVIDED FOR; COMBINED OPERATIONS; UNIVERSAL MACHINE TOOLS
- B23P15/00—Making specific metal objects by operations not covered by a single other subclass or a group in this subclass
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- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Physics & Mathematics (AREA)
- Optics & Photonics (AREA)
- Perforating, Stamping-Out Or Severing By Means Other Than Cutting (AREA)
Abstract
The invention discloses a processing technology for display screen backboard punching, which comprises punching processing and finish milling processing which are sequentially carried out; the punching processing comprises the steps of installing a back plate to be punched in a concave die in a punching die and positioning; pressing the back plate arranged in the female die through a pressing plate; the male die descends and penetrates through the material pressing plate to punch the back plate; the fine milling comprises the steps of placing the back plate after the punching process is finished in a milling center, installing the back plate on a milling platform and positioning; then, milling the punched semi-finished product hole by a milling cutter to obtain a hole with a required size; the milling platform is a plane, a platform hole matched with the formed hole is formed in the plane, and the aperture of the platform hole is matched with the aperture of the formed hole; milling the upper surface and the lower surface of the back plate after the hole forming milling is finished to obtain the required size and precision of the back plate; the processing technology for punching the display screen back plate solves the problem that the back plate obtained by directly punching in the prior art does not meet the requirement.
Description
Technical Field
The invention belongs to the field of liquid crystal display screens, and particularly relates to a processing technology for punching a display screen back plate.
Background
Along with the big trend of liquid crystal display toward frivolous orientation development, liquid crystal display's backplate is also more and more thin, has a great deal of pore-forming simultaneously and needs to process on liquid crystal display's backplate, among the prior art, obtains through the processing of directly punching a hole mostly, but because of backplate thickness is thin, when punching a hole and add man-hour, lead to the machining precision low, the quality of punching a hole is poor etc. influences backplate quality and quality, reduces backplate yield.
Disclosure of Invention
The invention aims to provide a processing technology for punching a display screen back plate, and solves the problem that the back plate obtained by directly punching in the prior art does not meet the requirement.
The processing technology for the display screen back plate punching comprises the steps of punching processing and finish milling processing which are sequentially carried out, and finally, a hole with a required size is processed on the back plate;
the punching process mainly comprises the following steps: mounting a back plate to be punched in a concave die in a punching die and positioning; pressing the back plate placed in the concave die through a pressing plate; the male die descends and penetrates through the material pressing plate to punch the back plate;
the surface of the female die facing the back plate is an integral supporting surface, the supporting surface is adapted to the back plate, blanking holes adapted to small holes to be punched in the back plate are formed in the supporting surface, and the aperture of each blanking hole is smaller than that of a formed hole;
the surface of the material pressing plate facing the back plate is an integral material pressing surface, the material pressing surface is provided with a avoiding hole which is adaptive to the blanking hole, and the aperture of the avoiding hole is adaptive to that of the blanking hole;
the outer diameter of the male die is smaller than the aperture of the avoiding hole and is adaptive to the aperture of the blanking hole, the male die penetrates through the avoiding hole, and punching is realized at the position of the blanking hole;
the finish milling mainly comprises the following steps: placing the back plate after the punching process is finished in a milling center, installing the back plate on a milling platform and positioning; then, milling the punched semi-finished product hole by a milling cutter to obtain a hole with a required size; the milling platform is a plane, a platform hole matched with the formed hole is formed in the plane, and the aperture of the platform hole is matched with the aperture of the formed hole;
and milling the upper surface and the lower surface of the back plate after the hole forming milling is finished to obtain the required size and precision of the back plate.
Preferably, the thickness of the back plate before punching is larger than the thickness of the finished display screen back plate, and enough allowance is reserved for milling the upper surface and the lower surface of the back plate.
Preferably, the blanking hole on the die is trumpet-shaped and comprises an upper cylindrical hole with an inner diameter matched with the punch and a lower tapered column hole integrally connected with a lower opening part of the upper cylindrical hole, and the inner diameter of the lower tapered column hole is sequentially increased from top to bottom.
Preferably, the avoiding hole is trumpet-shaped and comprises a lower cylindrical hole with the inner diameter matched with the punch and an upper conical column hole integrally connected to the upper opening part of the lower cylindrical hole, and the inner diameter of the upper conical column hole is sequentially increased from bottom to top.
The processing technology for punching the display screen back plate has the beneficial effects that: through the combination of die punching and finish milling, the formed holes on the back plate are processed, the formed holes with required size and precision are obtained, and the integral processing precision of the back plate is ensured.
Drawings
Fig. 1 is a schematic structural diagram of a die used in a processing technology for punching a display screen backboard according to a technical scheme of the present invention.
Detailed Description
In order to facilitate the understanding of the technical solutions of the present invention for those skilled in the art, the technical solutions of the present invention will be further described with reference to the drawings attached to the specification.
According to the technical scheme, the processing technology for the display screen back plate punching comprises the steps of punching processing and finish milling processing which are sequentially carried out, and finally, holes with the required size are processed on the back plate. The hole is formed after the back plate is processed, and is referred to as a hole for easy understanding and distinction.
The thickness of the back plate before punching is larger than the thickness of the finished display screen back plate, and enough allowance is reserved for milling the upper surface and the lower surface of the back plate 10. The upper and lower surfaces of the back plate 10 are machined by milling, so that the surface precision of the back plate is ensured.
The punching process mainly comprises the following steps: the back plate 10 to be punched is mounted in the female die 1 in the punching die 20 and positioned. The back plate 10 placed in the female die 1 is pressed by the pressing plate 2. The male die 4 descends and penetrates through the pressure plate 2 to punch the back plate 10.
The surface of the die 1 facing the back plate 10 is an integral supporting surface 11, and the supporting surface 11 is adapted to the back plate 10. The support surface 11 is provided with a blanking hole 5 which is adapted to a small hole to be punched on the back plate 10. The aperture of the blanking hole 5 is smaller than that of the formed hole.
The surface of the pressure plate 2 facing the back plate 10 is an integral pressure surface 21, and the pressure surface 21 is provided with an avoiding hole 6 corresponding to the blanking hole 5. The aperture of the avoiding hole 6 is adapted to the aperture of the blanking hole 5.
The outer diameter of the male die 4 is smaller than the aperture of the avoiding hole 6 and is adaptive to the aperture of the blanking hole 5, the male die 4 penetrates through the avoiding hole 6, and punching is achieved at the position of the blanking hole 5.
The blanking hole 5 on the female die 1 is horn-shaped and comprises an upper cylindrical hole with the inner diameter matched with the punch and a lower conical column hole which is integrally connected with the lower opening part of the upper cylindrical hole, and the inner diameter of the lower conical column hole is sequentially increased from top to bottom.
The avoiding hole 6 is trumpet-shaped and comprises a lower cylindrical hole with the inner diameter matched with the punch and an upper conical column hole integrally connected with the upper opening part of the lower cylindrical hole, and the inner diameter of the upper conical column hole is sequentially increased from bottom to top.
The finish milling mainly comprises the following steps: and (4) placing the back plate after the punching process is finished in a milling center, installing the back plate on a milling platform, and positioning. And then milling the punched semi-finished product hole by using a milling cutter to obtain a hole with a required size. The milling platform is a plane, a platform hole matched with the formed hole is formed in the plane, and the aperture of the platform hole is matched with the aperture of the formed hole.
And milling the upper surface and the lower surface of the back plate after the hole forming milling is finished to obtain the required size and precision of the back plate.
Based on above-mentioned technical scheme, through the processing mode of earlier punching a hole after the hole milling, ensure to process out the pore-forming that needs the size on thinner backplate, ensure the size and the precision of backplate and pore-forming, also avoid appearing warping the scheduling problem in pore-forming border position backplate simultaneously.
Based on above-mentioned technical scheme, mill processing after punching a hole first, and the hole size of punching out is less than the pore-forming, and effectual reduction or avoid the problem that the process of punching a hole leads to backplate part or whole deformation. And milling after punching to obtain the required pore-forming size. Compared with the method that the back plate which is not punched is directly subjected to hole milling, the method that the hole milling is directly performed without punching is adopted, and the machining efficiency is improved.
Based on the technical scheme, the two surfaces of the backboard are milled after hole milling, and the thickness of the backboard is larger than that of a finished backboard before the surface of the backboard is milled, so that the thickness of the backboard is increased, the strength of the backboard is increased, the probability of deformation of the backboard in the punching and hole milling processes is reduced, or the deformation of the backboard is reduced. And milling the surface after hole milling is finished, on one hand, compensating micro deformation generated in punching and hole milling to obtain the required size of the back plate, on the other hand, obtaining the surface precision of the back plate, and solving the problem of abrasion of the two surfaces of the back plate in punching, hole milling and circulation.
Based on the technical scheme, when punching, the thinner back plate is supported by the integral supporting surface on the female die, so that deformation of the back plate is avoided or reduced. And the punching and blanking are realized by the arrangement of the blanking holes. The blanking hole is arranged in a horn shape, so that colleagues who ensure the size precision are convenient for blanking the waste.
Based on above-mentioned technical scheme, when punching a hole, have a terrace die mounting panel on the mould, will be all installed on the terrace die mounting panel according to required position in the equal terrace die of pore-forming quantity, the terrace die mounting panel descends, drives so the terrace die descends, passes the pressure flitch, realizes the operation of punching a hole. All wait to punch a hole on the backplate once only to accomplish and punch a hole, improve the machining efficiency that punches a hole on the one hand, also avoid the machining error that the processing of punching a hole caused many times simultaneously, reduce machining error.
Based on above-mentioned technical scheme, when punching a hole, at first utilize the pressure flitch to press the material to the backplate, avoid the backplate to appear moving scheduling problem when punching a hole, improve the backplate precision of punching a hole, especially dodge the design of hole structure and size, the effectual local deformation that has reduced the position of punching a hole.
Technical solution of the invention is described above with reference to the accompanying drawings by way of example, and it is obvious that the invention is not limited to the above embodiments, and it is within the scope of the invention to adopt various insubstantial modifications of the inventive concept and technical solution, or to apply the inventive concept and technical solution to other situations without any modification.
Claims (4)
1. A processing technology for punching a display screen back plate is characterized by comprising the steps of sequentially performing punching processing and finish milling processing, and finally processing a hole with a required size on the back plate;
the punching process mainly comprises the following steps: mounting a back plate to be punched in a concave die in a punching die and positioning; pressing the back plate placed in the concave die through a pressing plate; the male die descends and penetrates through the material pressing plate to punch the back plate;
the surface of the female die facing the back plate is an integral supporting surface, the supporting surface is adapted to the back plate, blanking holes adapted to small holes to be punched in the back plate are formed in the supporting surface, and the aperture of each blanking hole is smaller than that of a formed hole;
the surface of the pressure plate facing the back plate is an integral pressure surface, the pressure surface is provided with avoidance holes corresponding to the blanking holes, and the aperture of the avoidance holes is corresponding to that of the blanking holes;
the outer diameter of the male die is smaller than the aperture of the avoiding hole and is adaptive to the aperture of the blanking hole, the male die penetrates through the avoiding hole, and punching is realized at the position of the blanking hole;
the finish milling mainly comprises the following steps: placing the back plate after the punching process is finished in a milling center, installing the back plate on a milling platform and positioning; then, milling the punched semi-finished product hole by a milling cutter to obtain a hole with a required size; the milling platform is a plane, a platform hole matched with the formed hole is formed in the plane, and the aperture of the platform hole is matched with the aperture of the formed hole;
and milling the upper surface and the lower surface of the back plate after the hole forming milling is finished to obtain the required size and precision of the back plate.
2. The processing technology for the display screen backboard punching hole according to claim 1, wherein the thickness of the backboard before punching processing is larger than the thickness of the finished display screen backboard, so that enough allowance is left for milling processing of the upper surface and the lower surface of the backboard.
3. The processing technology for punching the display screen backboard according to claim 1, wherein the blanking hole on the female die is trumpet-shaped and comprises an upper cylindrical hole with an inner diameter matched with the punch and a lower tapered column hole integrally connected to a lower opening part of the upper cylindrical hole, and the inner diameter of the lower tapered column hole is sequentially increased from top to bottom.
4. The processing technology for punching the display screen backboard according to claim 1, wherein the avoiding hole is trumpet-shaped and comprises a lower cylindrical hole with an inner diameter matched with the punch and an upper conical column hole integrally connected to an upper opening part of the lower cylindrical hole, and the inner diameter of the upper conical column hole is sequentially increased from bottom to top.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202211110122.7A CN115415804A (en) | 2022-09-13 | 2022-09-13 | Processing technology for punching display screen back plate |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202211110122.7A CN115415804A (en) | 2022-09-13 | 2022-09-13 | Processing technology for punching display screen back plate |
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| Publication Number | Publication Date |
|---|---|
| CN115415804A true CN115415804A (en) | 2022-12-02 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202211110122.7A Pending CN115415804A (en) | 2022-09-13 | 2022-09-13 | Processing technology for punching display screen back plate |
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| CN (1) | CN115415804A (en) |
Citations (10)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2003245737A (en) * | 2002-02-22 | 2003-09-02 | Ket & Ket:Kk | Stainless steel sheet superposition-type cutting die |
| CN202824340U (en) * | 2012-08-20 | 2013-03-27 | 天津双鑫机械制造有限公司 | Punching processing die of automobile damper spring upper seat |
| CN109013854A (en) * | 2018-10-08 | 2018-12-18 | 苏州市高凡钣金有限公司 | The punching technology of sheet metal component |
| CN208944962U (en) * | 2018-10-17 | 2019-06-07 | 苏州市高凡钣金有限公司 | Four hole punching dies of sheet metal component |
| CN111113549A (en) * | 2019-12-16 | 2020-05-08 | 广州兴森快捷电路科技有限公司 | Ultra-thick core plate punching system and ultra-thick core plate punching method |
| CN211637957U (en) * | 2020-01-08 | 2020-10-09 | 佛山市威羽金属建筑装饰材料有限公司 | Aluminum plate punching machine with adjustable punching hole diameter |
| CN211965606U (en) * | 2019-12-04 | 2020-11-20 | 广州市华冠精冲零件有限公司 | Flange integrated into one piece mould of turn-ups in area |
| CN212042267U (en) * | 2020-03-27 | 2020-12-01 | 青岛益昕汽车模具有限公司 | Stepped thick plate blanking and punching die |
| CN112025825A (en) * | 2020-08-24 | 2020-12-04 | 山东华致林医药科技有限公司 | Film punching device for pharmaceutical production packaging bag |
| CN114770000A (en) * | 2022-05-06 | 2022-07-22 | 杭州富宏叉车制动器有限公司 | Processing technology and processing equipment for brake shoe |
-
2022
- 2022-09-13 CN CN202211110122.7A patent/CN115415804A/en active Pending
Patent Citations (10)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2003245737A (en) * | 2002-02-22 | 2003-09-02 | Ket & Ket:Kk | Stainless steel sheet superposition-type cutting die |
| CN202824340U (en) * | 2012-08-20 | 2013-03-27 | 天津双鑫机械制造有限公司 | Punching processing die of automobile damper spring upper seat |
| CN109013854A (en) * | 2018-10-08 | 2018-12-18 | 苏州市高凡钣金有限公司 | The punching technology of sheet metal component |
| CN208944962U (en) * | 2018-10-17 | 2019-06-07 | 苏州市高凡钣金有限公司 | Four hole punching dies of sheet metal component |
| CN211965606U (en) * | 2019-12-04 | 2020-11-20 | 广州市华冠精冲零件有限公司 | Flange integrated into one piece mould of turn-ups in area |
| CN111113549A (en) * | 2019-12-16 | 2020-05-08 | 广州兴森快捷电路科技有限公司 | Ultra-thick core plate punching system and ultra-thick core plate punching method |
| CN211637957U (en) * | 2020-01-08 | 2020-10-09 | 佛山市威羽金属建筑装饰材料有限公司 | Aluminum plate punching machine with adjustable punching hole diameter |
| CN212042267U (en) * | 2020-03-27 | 2020-12-01 | 青岛益昕汽车模具有限公司 | Stepped thick plate blanking and punching die |
| CN112025825A (en) * | 2020-08-24 | 2020-12-04 | 山东华致林医药科技有限公司 | Film punching device for pharmaceutical production packaging bag |
| CN114770000A (en) * | 2022-05-06 | 2022-07-22 | 杭州富宏叉车制动器有限公司 | Processing technology and processing equipment for brake shoe |
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