CN113276014B - Method for improving CNC chamfering stability of TFT-LCD (thin film transistor-liquid crystal display) full screen - Google Patents
Method for improving CNC chamfering stability of TFT-LCD (thin film transistor-liquid crystal display) full screen Download PDFInfo
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- CN113276014B CN113276014B CN202110588924.8A CN202110588924A CN113276014B CN 113276014 B CN113276014 B CN 113276014B CN 202110588924 A CN202110588924 A CN 202110588924A CN 113276014 B CN113276014 B CN 113276014B
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- tft
- lcd
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- screen
- grinding
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B24—GRINDING; POLISHING
- B24B—MACHINES, DEVICES, OR PROCESSES FOR GRINDING OR POLISHING; DRESSING OR CONDITIONING OF ABRADING SURFACES; FEEDING OF GRINDING, POLISHING, OR LAPPING AGENTS
- B24B37/00—Lapping machines or devices; Accessories
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B24—GRINDING; POLISHING
- B24B—MACHINES, DEVICES, OR PROCESSES FOR GRINDING OR POLISHING; DRESSING OR CONDITIONING OF ABRADING SURFACES; FEEDING OF GRINDING, POLISHING, OR LAPPING AGENTS
- B24B37/00—Lapping machines or devices; Accessories
- B24B37/11—Lapping tools
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B24—GRINDING; POLISHING
- B24B—MACHINES, DEVICES, OR PROCESSES FOR GRINDING OR POLISHING; DRESSING OR CONDITIONING OF ABRADING SURFACES; FEEDING OF GRINDING, POLISHING, OR LAPPING AGENTS
- B24B37/00—Lapping machines or devices; Accessories
- B24B37/27—Work carriers
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- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Grinding And Polishing Of Tertiary Curved Surfaces And Surfaces With Complex Shapes (AREA)
Abstract
The invention discloses a method for improving CNC chamfering stability of a TFT-LCD comprehensive screen, which relates to the technical field of comprehensive screen processing, in particular to S1 double-sided clamping; s2, setting a grinding shaft; s3, stabilizing shaft setting and S4 and grinding operation. According to the method for improving the CNC chamfering stability of the TFT-LCD comprehensive screen, the firmness of the clamping of the TFT-LCD comprehensive screen is improved by clamping the TFT-LCD comprehensive screen on two sides, falling is avoided, the grinding shaft moves to be attached and moved along the edge of a jig when being chamfered, meanwhile, the grinding shaft is meshed with the jig to move, the stability of the grinding shaft is improved, the grinding shaft is prevented from shaking, the stabilizing shafts are attached to the rest three sides of the TFT-LCD comprehensive screen in a distributed mode and move synchronously when the grinding shaft moves and grinds, the opposite force is generated between the stabilizing shafts and the grinding shaft, the stability of the TFT-LCD comprehensive screen is improved, the TFT-LCD comprehensive screen is prevented from shaking or shifting caused by thrust influence, and the precision of the TFT-LCD comprehensive screen after chamfering is improved.
Description
Technical Field
The invention relates to the technical field of comprehensive screen processing, in particular to a method for improving CNC chamfering stability of a TFT-LCD comprehensive screen.
Background
The TFT-LCD is a large-scale semiconductor full-integrated circuit manufacturing technology adopting a new material and a new process, is the basis of a full-face screen, is widely applied to the field of mobile phones, and needs to be subjected to CNC chamfering in order to adapt to the shape of a phone model, wherein the CNC chamfering is to grind the edge of the full-face screen of the TFT-LCD through a grinding tool until the full-face screen of the TFT-LCD is ground into a preset shape.
The existing TFT-LCD full screen is easy to have the condition of insufficient stability in the CNC chamfering process, namely when the TFT-LCD full screen is subjected to CNC chamfering, the TFT-LCD full screen or a grinding tool is easy to shake, so that the precision of the TFT-LCD full screen is insufficient.
Disclosure of Invention
Aiming at the defects of the prior art, the invention provides a method for improving the CNC chamfering stability of a TFT-LCD full screen, which solves the problem that the stability of the existing TFT-LCD full screen is easy to be insufficient in the CNC chamfering process, namely the TFT-LCD full screen or a grinding tool is easy to shake when the TFT-LCD full screen is subjected to CNC chamfering, so that the precision of the TFT-LCD full screen is insufficient.
In order to achieve the purpose, the invention is realized by the following technical scheme: a method for improving CNC chamfering stability of a TFT-LCD comprehensive screen comprises the following operation steps:
s1, double-sided clamping:
protective cotton is arranged on the surface, facing the TFT-LCD full screen, of the jig, and two jigs are arranged, wherein the two jigs are used for attaching and clamping two surfaces of the TFT-LCD full screen to be processed;
s2, setting a grinding shaft:
the grinding shaft consists of a rotating shaft, a grinding workpiece and a tooth-shaped bearing, wherein the tooth-shaped bearing is in meshed connection with the jig;
s3, setting a stable shaft:
the three stabilizing shafts are arranged and are attached to the rest three sides of the TFT-LCD full screen in a distributed mode, the TFT-LCD full screen is provided with four sides, one side of the TFT-LCD full screen is attached with the grinding shaft, and the rest three sides of the TFT-LCD full screen are attached with the stabilizing shafts;
s4, grinding operation:
and (4) rotating the grinding shaft to perform chamfering operation on the TFT-LCD comprehensive screen until the required shape is obtained.
Optionally, in the step S1, the edge shape of the jig is consistent with the shape of the entire screen of the TFT-LCD that is preset.
Optionally, in the step S1, the protective cotton plays a role in preventing clamping damage, so that the situation that the surface of the overall screen of the TFT-LCD is cracked due to overlarge pressure when the tool clamps the overall screen of the TFT-LCD is avoided, and the protective cotton increases the friction between the overall screen of the TFT-LCD and the tool.
Optionally, in the step S2, the tooth-shaped bearing is engaged with the jig, that is, a rack is disposed on the other surface of the jig, and the shape of the rack is identical to that of the jig, so that the tooth-shaped bearing is engaged with the jig through the rack.
Optionally, in the step S2, the grinding shaft rotates and moves along the edge of the jig, and the tooth-shaped bearing is engaged with the jig all the time in the process.
Optionally, in the step S3, the stabilizing shaft moves synchronously with the movement of the grinding shaft, that is, the stabilizing shaft always fits to the three sides of the TFT-LCD except the side where the grinding shaft is located.
Optionally, in the step S3, the stabilizing shaft is not connected to the power device, that is, not connected to the motor for rotation, and the stabilizing shaft rolls by the friction force between the stabilizing shaft and the side of the entire screen of the TFT-LCD when moving.
Optionally, in the step S4, a relative force is generated between the stabilizing shaft and the grinding shaft, that is, the grinding shaft is attached to the side of the TFT-LCD full-face screen to generate a thrust force to the other sides of the TFT-LCD full-face screen, and the stabilizing shaft is attached to the other sides of the TFT-LCD full-face screen to generate a relative thrust force.
The invention provides a method for improving CNC chamfering stability of a TFT-LCD comprehensive screen, which has the following beneficial effects:
according to the method for improving the CNC chamfering stability of the TFT-LCD comprehensive screen, the firmness of the TFT-LCD comprehensive screen is improved in a double-side clamping mode through the TFT-LCD comprehensive screen, falling is avoided, the grinding shaft moves in a fitting mode along the edge of a jig when moving for chamfering, meanwhile, the grinding shaft moves in a meshing mode with the jig, the stability of the grinding shaft is kept, shaking of the grinding shaft is avoided, when the grinding shaft moves and grinds, stabilizing shafts are distributed and attached to the rest three sides of the TFT-LCD comprehensive screen and move synchronously, relative force is generated between the stabilizing shafts and the grinding shaft, the stability of the TFT-LCD comprehensive screen is improved, the TFT-LCD comprehensive screen is prevented from shaking or shifting due to the influence of thrust, and therefore the precision of the TFT-LCD comprehensive screen after chamfering is improved.
Detailed Description
The invention provides a technical scheme that: a method for improving CNC chamfering stability of a TFT-LCD comprehensive screen comprises the following operation steps:
s1, double-sided clamping:
protective cotton is arranged on the surface, facing the TFT-LCD full screen, of the jig, and two jigs are arranged, wherein the two jigs are used for attaching and clamping two surfaces of the TFT-LCD full screen to be processed;
s2, setting a grinding shaft:
the grinding shaft consists of a rotating shaft, a grinding workpiece and a tooth-shaped bearing, wherein the tooth-shaped bearing is in meshed connection with the jig;
s3, setting a stable shaft:
the three stabilizing shafts are arranged and are attached to the rest three sides of the TFT-LCD full screen in a distributed mode, the TFT-LCD full screen is provided with four sides, one side of the TFT-LCD full screen is attached with the grinding shaft, and the rest three sides of the TFT-LCD full screen are attached with the stabilizing shafts;
s4, grinding operation:
and (4) rotating the grinding shaft to carry out chamfering operation on the TFT-LCD full screen until the required shape is obtained.
In the step S1, the edge shape of the jig is consistent with the shape of the preset TFT-LCD comprehensive screen, so that the grinding shaft only needs to be attached to the edge of the jig to move during operation to finish the chamfering operation, and excessive grinding of the TFT-LCD comprehensive screen is avoided.
In the step S1, the protective cotton plays a role in preventing clamping damage, the situation that the surface of the TFT-LCD comprehensive screen is cracked due to overlarge pressure when the TFT-LCD comprehensive screen is clamped by the jig is avoided, the friction force between the TFT-LCD comprehensive screen and the jig is increased by the protective cotton, and the possibility that the TFT-LCD is displaced can be reduced due to the increase of the friction force.
In the step S2, the tooth-shaped bearing is engaged with the jig, that is, a rack is disposed on the other surface of the jig, and the shape of the rack is the same as that of the jig, so that the tooth-shaped bearing is engaged with the jig through the rack, the tooth-shaped bearing is movably connected with the rotating shaft, and the rotating shaft does not affect the tooth-shaped bearing when carrying the grinding workpiece to rotate.
In the S2 step, the grinding shaft moves along the edge of the jig while rotating, the tooth-shaped bearing is always engaged with the jig and engaged with the rack on the surface of the jig, so that the rotating shaft can only move along the shape of the rack in the moving process and cannot shake due to tight engagement connection.
In step S3, the stabilizing shaft moves synchronously with the grinding shaft, i.e. the stabilizing shaft always fits the three sides of the TFT-LCD except the side where the grinding shaft is located, and the stabilizing shaft moves synchronously with the grinding shaft so that the trajectories of the stabilizing shaft and one end of the grinding shaft are consistent but not in contact with each other, thereby preventing the grinding shaft from being affected by the chamfering operation.
In the step S3, the stabilizing shaft is not connected with a power device, namely, the stabilizing shaft is not connected with a motor to rotate, the stabilizing shaft rolls through the friction force between the stabilizing shaft and the side surface of the overall screen of the TFT-LCD when moving, the stabilizing shaft moves and rolls based on the friction force, and the production cost can be reduced without arranging a corresponding motor.
In the step S4, a relative force is generated between the stabilizing shaft and the grinding shaft, namely the grinding shaft is attached to the side edge of the TFT-LCD full-face screen to generate a thrust to the other side edges of the TFT-LCD full-face screen, and meanwhile the stabilizing shaft is attached to the other side edges of the TFT-LCD full-face screen to generate a relative thrust due to the stress, and the stabilizing shaft offsets the thrust generated when the grinding shaft is attached to the side edge of the TFT-LCD full-face screen, so that the TFT-LCD full-face screen is kept stable, and the side edge of the TFT-LCD full-face screen is prevented from moving due to the thrust.
According to the method for improving the CNC chamfering stability of the TFT-LCD comprehensive screen, the firmness of the clamping of the TFT-LCD comprehensive screen is improved by clamping the TFT-LCD comprehensive screen on two sides, falling is avoided, the grinding shaft moves to be attached and moved along the edge of a jig when being chamfered, meanwhile, the grinding shaft is meshed with the jig to move, the stability of the grinding shaft is improved, the grinding shaft is prevented from shaking, the stabilizing shafts are attached to the rest three sides of the TFT-LCD comprehensive screen in a distributed mode and move synchronously when the grinding shaft moves and grinds, the opposite force is generated between the stabilizing shafts and the grinding shaft, the stability of the TFT-LCD comprehensive screen is improved, the TFT-LCD comprehensive screen is prevented from shaking or shifting caused by thrust influence, and the precision of the TFT-LCD comprehensive screen after chamfering is improved.
In summary, the method for improving the CNC chamfering stability of the TFT-LCD comprehensive screen comprises the following operation steps when in use:
double-sided clamping: protective cotton is arranged on the surface, facing the TFT-LCD full screen, of the jig, and two jigs are arranged, wherein the two jigs are used for attaching and clamping two surfaces of the TFT-LCD full screen to be processed;
the grinding shaft is provided with: the grinding shaft consists of a rotating shaft, a grinding workpiece and a tooth-shaped bearing, wherein the tooth-shaped bearing is in meshed connection with the jig;
and (3) setting a stabilizing shaft: the three stabilizing shafts are arranged and are attached to the rest three sides of the TFT-LCD full screen in a distributed mode, the TFT-LCD full screen is provided with four sides, one side of the TFT-LCD full screen is attached with the grinding shaft, and the rest three sides of the TFT-LCD full screen are attached with the stabilizing shafts;
grinding operation: the grinding shaft rotates to carry out chamfering operation on the TFT-LCD comprehensive screen until the required shape is obtained;
according to the method for improving the CNC chamfering stability of the TFT-LCD comprehensive screen, the firmness of the clamping of the TFT-LCD comprehensive screen is improved by clamping the TFT-LCD comprehensive screen on two sides, falling is avoided, the grinding shaft moves to be attached and moved along the edge of a jig when being chamfered, meanwhile, the grinding shaft is meshed with the jig to move, the stability of the grinding shaft is improved, the grinding shaft is prevented from shaking, the stabilizing shafts are attached to the rest three sides of the TFT-LCD comprehensive screen in a distributed mode and move synchronously when the grinding shaft moves and grinds, the opposite force is generated between the stabilizing shafts and the grinding shaft, the stability of the TFT-LCD comprehensive screen is improved, the TFT-LCD comprehensive screen is prevented from shaking or shifting caused by thrust influence, and the precision of the TFT-LCD comprehensive screen after chamfering is improved.
Claims (5)
1. A method for improving CNC chamfering stability of a TFT-LCD comprehensive screen is characterized by comprising the following steps: the method comprises the following operation steps:
s1, double-sided clamping:
protective cotton is arranged on the surface, facing the TFT-LCD full screen, of the jig, and two jigs are arranged, wherein the two jigs are used for attaching and clamping two surfaces of the TFT-LCD full screen to be processed;
s2, setting a grinding shaft:
the grinding shaft consists of a rotating shaft, a grinding workpiece and a tooth-shaped bearing, wherein the tooth-shaped bearing is in meshed connection with the jig, the grinding shaft moves along the edge of the jig while rotating automatically, and the tooth-shaped bearing is always in meshed connection with the jig in the process;
s3, setting a stable shaft:
the three stabilizing shafts are arranged and are attached to the rest three sides of the TFT-LCD full screen in a distributed mode, the TFT-LCD full screen is provided with four sides, one side of the TFT-LCD full screen is attached with the grinding shaft, the rest three sides of the TFT-LCD full screen are attached with the stabilizing shafts, the stabilizing shafts move synchronously along with the movement of the grinding shafts, namely the stabilizing shafts are always attached to the rest three sides of the TFT-LCD full screen except the side where the grinding shafts are located, the stabilizing shafts are not connected with a power device, namely the stabilizing shafts are not connected with a motor to rotate, and the stabilizing shafts roll through friction force between the stabilizing shafts and the side faces of the TFT-LCD full screen when the stabilizing shafts move;
s4, grinding operation:
and (4) rotating the grinding shaft to perform chamfering operation on the TFT-LCD comprehensive screen until the required shape is obtained.
2. The method for improving the CNC chamfering stability of the TFT-LCD full screen according to claim 1, wherein: in the step S1, the edge shape of the jig is consistent with the shape of the entire screen of the TFT-LCD that is preset.
3. The method for improving the CNC chamfering stability of the TFT-LCD full screen according to claim 1, wherein: in the step S1, the protective cotton plays a role in preventing clamping damage, the situation that the surface of the TFT-LCD comprehensive screen is cracked due to overlarge pressure when the TFT-LCD comprehensive screen is clamped by the jig is avoided, and the protective cotton increases the friction force between the TFT-LCD comprehensive screen and the jig.
4. The method for improving the CNC chamfering stability of the TFT-LCD full screen according to claim 1, wherein: in the step S2, the tooth-shaped bearing is engaged with the jig, that is, a rack is disposed on the other surface of the jig, and the shape of the rack is identical to that of the jig, so that the tooth-shaped bearing is engaged with the jig through the rack.
5. The method for improving the CNC chamfering stability of the TFT-LCD full screen according to claim 1, wherein: in the step S4, a relative force is generated between the stabilizing shaft and the grinding shaft, that is, the grinding shaft is attached to the side of the TFT-LCD full panel to generate a thrust to the other sides of the TFT-LCD full panel, and the stabilizing shaft is attached to the other sides of the TFT-LCD full panel to generate a relative thrust.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202110588924.8A CN113276014B (en) | 2021-05-28 | 2021-05-28 | Method for improving CNC chamfering stability of TFT-LCD (thin film transistor-liquid crystal display) full screen |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202110588924.8A CN113276014B (en) | 2021-05-28 | 2021-05-28 | Method for improving CNC chamfering stability of TFT-LCD (thin film transistor-liquid crystal display) full screen |
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| CN113276014B true CN113276014B (en) | 2022-05-24 |
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| KR20130012284A (en) * | 2011-07-25 | 2013-02-04 | 공석태 | Glass |
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2021
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| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2001030151A (en) * | 1999-05-18 | 2001-02-06 | Nippon Sheet Glass Co Ltd | Both surface polishing device and method |
| CN204413841U (en) * | 2015-01-14 | 2015-06-24 | 浙江凯吉机械设备制造有限公司 | A kind of planetary rotation clamping device of polished machine |
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| CN111975535A (en) * | 2020-09-02 | 2020-11-24 | 吴克坚 | Device for realizing corner polishing based on autorotation of processing lens |
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| CN113276014A (en) | 2021-08-20 |
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