CN112509841A - Manufacturing method of keyboard, keyboard and electronic equipment - Google Patents
Manufacturing method of keyboard, keyboard and electronic equipment Download PDFInfo
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- CN112509841A CN112509841A CN202011295339.0A CN202011295339A CN112509841A CN 112509841 A CN112509841 A CN 112509841A CN 202011295339 A CN202011295339 A CN 202011295339A CN 112509841 A CN112509841 A CN 112509841A
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- material plate
- keyboard
- convex surface
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- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01H—ELECTRIC SWITCHES; RELAYS; SELECTORS; EMERGENCY PROTECTIVE DEVICES
- H01H13/00—Switches having rectilinearly-movable operating part or parts adapted for pushing or pulling in one direction only, e.g. push-button switch
- H01H13/70—Switches having rectilinearly-movable operating part or parts adapted for pushing or pulling in one direction only, e.g. push-button switch having a plurality of operating members associated with different sets of contacts, e.g. keyboard
- H01H13/88—Processes specially adapted for manufacture of rectilinearly movable switches having a plurality of operating members associated with different sets of contacts, e.g. keyboards
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- G—PHYSICS
- G06—COMPUTING; CALCULATING OR COUNTING
- G06F—ELECTRIC DIGITAL DATA PROCESSING
- G06F3/00—Input arrangements for transferring data to be processed into a form capable of being handled by the computer; Output arrangements for transferring data from processing unit to output unit, e.g. interface arrangements
- G06F3/01—Input arrangements or combined input and output arrangements for interaction between user and computer
- G06F3/02—Input arrangements using manually operated switches, e.g. using keyboards or dials
- G06F3/0202—Constructional details or processes of manufacture of the input device
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- General Engineering & Computer Science (AREA)
- Theoretical Computer Science (AREA)
- Human Computer Interaction (AREA)
- Physics & Mathematics (AREA)
- General Physics & Mathematics (AREA)
- Shaping Metal By Deep-Drawing, Or The Like (AREA)
Abstract
The invention relates to a manufacturing method of a keyboard, which comprises the following steps: detecting the concave-convex surface of the original material plate to obtain a material plate to be processed; the material plate to be processed comprises a concave surface and a convex surface opposite to the concave surface; placing the material plate to be processed on a workbench in a mode that the concave surface faces downwards and the convex surface faces upwards to wait for processing; and processing the material plate to be processed to obtain a formed keyboard. Meanwhile, the invention also provides a keyboard and electronic equipment. The keyboard has the beneficial effects that the material plate to be processed, which comprises the concave surface and the convex surface which are oppositely arranged, is placed on the workbench for processing in a mode that the concave surface faces downwards and the convex surface faces upwards, so that the purpose of reducing the flatness of the keyboard is achieved.
Description
Technical Field
The present invention relates to the field of electronic product manufacturing technologies, and in particular, to a keyboard, a manufacturing method thereof, and an electronic device.
Background
For most electronic devices, a keyboard is an essential component. In order to input parameters, the keyboard usually needs to be provided with a key area for installing keys or a touch pad area for installing a touch pad. The existing keyboard products are usually made of flat material plates by CNC (Computer i sed nut i ca l control l machine i ne, Computer numerical control machine), and they have the following defects:
(1) the required thickness for most areas of the finished keyboard is 0.5mm and 0.4mm, while the thickness of the flitch is typically 5.5mm, which makes the flitch to be formed through a large amount of CNC machining. However, after a large amount of CNC processing, the two ends of the keyboard end product are usually warped and deformed, so that the flatness of the keyboard end product is high (the maximum flatness can exceed 5mm), and finally the flatness defect rate of the keyboard end product is up to 50%.
(2) Because the required hole spacing of the key area of the finished keyboard is only 1.4mm, the material thickness of the keyboard area is only 1.225mm, and the strength of the keyboard is weak. When the raw material is punched, plane deformation is easily caused due to large blanking force.
(3) The size of the keyboard finished product is larger, the length of the keyboard finished product is 277.5mm generally, the width of the keyboard finished product is 214mm generally, the flatness specification of a customer is 0.7mm generally, and the existing processing mode of selecting a straight material plate for processing is difficult to meet the requirement.
Disclosure of Invention
Based on the above, the invention provides a manufacturing method of a keyboard, which adopts a material plate to be processed, which comprises a concave surface and a convex surface which are oppositely arranged, and the material plate to be processed is placed on a workbench to be processed in a manner that the concave surface faces downwards and the convex surface faces upwards, so as to achieve the purpose of reducing the flatness of the keyboard.
A manufacturing method of a keyboard comprises the following steps:
detecting the concave-convex surface of the original material plate to obtain a material plate to be processed; the material plate to be processed comprises a concave surface and a convex surface opposite to the concave surface;
placing the material plate to be processed on a workbench in a mode that the concave surface faces downwards and the convex surface faces upwards to wait for processing;
and processing the material plate to be processed to obtain a formed keyboard.
According to the manufacturing method of the keyboard, the concave-convex surface detection is firstly carried out on the original material plate, and the material plate to be processed with the concave surface and the convex surface arranged oppositely is obtained. Then, the material plate to be processed is placed on the workbench in a state opposite to the deformation state of the subsequent processing, namely, the material plate to be processed is placed on the workbench in a compensation mode in a mode that the concave surface faces downwards and the convex surface faces upwards. And finally, processing the material plate to be processed on the workbench to obtain the formed keyboard. Through the design, the material plate to be processed is obtained through concave-convex surface detection before processing, and the material plate to be processed is placed on the workbench in a mode that the concave surface faces downwards and the convex surface faces upwards for processing, so that the purpose of reducing the flatness of the keyboard is achieved.
In one embodiment, the performing concave-convex surface detection on the stoker plate includes:
placing the original flitch on a detection platform, and respectively detecting whether the gap distance between each vertex angle of the original flitch and the detection platform exceeds a preset distance;
if the clearance distance between each vertex angle of the original flitch and the detection platform exceeds a preset distance, the surface of one side, close to the detection platform, of the original flitch is a convex surface;
and if the clearance distance between each top angle of the original flitch and the detection platform does not exceed the preset distance, the surface of one side, close to the detection platform, of the original flitch is a concave surface.
In one embodiment, the predetermined distance is 0.1 mm.
In one embodiment, the detecting the concave-convex surface of the raw material plate further includes:
carrying out convex surface marking on the detected convex surface;
and marking the detected concave surface.
In one embodiment, the detecting the concave-convex surface of the raw material plate further includes:
when the surface of one side of the original material plate is detected to be a convex surface, detecting whether the surface of one side opposite to the convex surface is a concave surface;
and if the surface of one side opposite to the convex surface is a concave surface, the original material plate is a material plate to be processed.
In one embodiment, the detecting the concave-convex surface of the raw material plate further includes:
when the surface of one side of the original material plate is detected to be a concave surface, detecting whether the surface of one side opposite to the concave surface is a convex surface;
and if the surface of one side opposite to the concave surface is a convex surface, the original material plate is a material plate to be processed.
In one embodiment, the raw material plate is a rectangular material plate.
Meanwhile, the invention also provides a keyboard.
A keyboard is manufactured by adopting the manufacturing method of the keyboard of any one of the embodiments. The keyboard is manufactured by placing a material plate to be processed on a workbench in a mode that a concave surface faces downwards and a convex surface faces upwards, and the purpose of reducing the flatness of the keyboard is achieved.
Meanwhile, the invention also provides electronic equipment.
An electronic device comprises the keyboard. The keyboard in the electronic equipment is manufactured by placing a material plate to be processed on a workbench in a mode that a concave surface faces downwards and a convex surface faces upwards, and the purpose of reducing the flatness of the keyboard is achieved.
Drawings
Fig. 1 is a schematic flow chart illustrating a method for manufacturing a keyboard according to an embodiment of the present invention;
fig. 2 is a schematic view of a work table on which a material plate to be processed is placed in the manufacturing method of the keyboard shown in fig. 1;
FIG. 3 is a schematic diagram illustrating the flatness of the keyboard in the method of manufacturing the keyboard shown in FIG. 1;
fig. 4 is a detailed flowchart illustrating step S30 in the method for manufacturing the keyboard shown in fig. 1;
fig. 5 is a schematic diagram of a keyboard according to an embodiment of the invention.
The meaning of the reference symbols in the drawings is:
100-a material plate to be processed; 101-convex surface; 102-a concave surface; 100' -a keyboard;
200-a workbench;
Detailed Description
To facilitate an understanding of the invention, the invention will now be described more fully with reference to the accompanying drawings. Preferred embodiments of the present invention are shown in the drawings. This invention may, however, be embodied in many different forms and should not be construed as limited to the embodiments set forth herein. Rather, these embodiments are provided so that this disclosure will be thorough and complete.
It will be understood that when an element is referred to as being "secured to" another element, it can be directly on the other element or intervening elements may also be present. When an element is referred to as being "connected" to another element, it can be directly connected to the other element or intervening elements may also be present.
Unless defined otherwise, all technical and scientific terms used herein have the same meaning as commonly understood by one of ordinary skill in the art to which this invention belongs. The terminology used in the description of the invention herein is for the purpose of describing particular embodiments only and is not intended to be limiting of the invention.
Fig. 1 to 5 show a method for manufacturing a keyboard 100' according to an embodiment of the invention.
As shown in fig. 1, the manufacturing method of the keyboard 100' includes the steps of:
s10, detecting the concave-convex surface of the original material plate to obtain a material plate 100 to be processed; the material plate 100 to be processed comprises a concave surface 102 and a convex surface 101 arranged opposite to the concave surface 102.
Wherein, based on the shape of the keyboard 100' to be formed, the proper material plate 100 to be processed is detected. In this embodiment, the original material plate is selected as a rectangular material plate, the concave-convex surface detection is performed on the rectangular original material plate, the to-be-processed material plate 100 having the concave surface 102 and the convex surface 101 at the same time is selected, and the concave surface 102 and the convex surface 101 are disposed opposite to each other, and then the to-be-processed material plate 100 is processed to form the keyboard 100'. It should be noted that, in other embodiments, the shape of the stoker plate may also not be limited to a rectangle, and the shape of the stoker plate may also be selected according to actual needs. The original material plate can be a steel plate, a plastic plate or a material plate made of other materials, and is not limited here.
In order to detect the concave-convex surface of the original flitch, in this embodiment, the original flitch is horizontally placed on a detection platform, and whether the gap distance between each vertex angle of the original flitch and the detection platform exceeds a preset distance is respectively detected.
If the clearance distance between each vertex angle of the original flitch and the detection platform exceeds a preset distance, the surface of one side, close to the detection platform, of the original flitch is a convex surface 101.
If the clearance distance between each vertex angle of the original flitch and the detection platform does not exceed the preset distance, the surface of one side, close to the detection platform, of the original flitch is a concave surface 102.
In this embodiment, the detection platform is a marble platform, and the preset distance is 0.1 mm. In other embodiments, the detection platform may be another platform, and it is only required to ensure that the surface of the detection platform on which the stoker is placed is a flat surface, so as to more accurately detect whether the surface of the stoker is a concave surface 102 or a convex surface 101.
In this embodiment, in order to facilitate the post-processing of the original material plate, the surface of the original material plate may be marked with a concave-convex surface. Furthermore, the detected convex 101 can be marked convexly, and the detected concave 102 can be marked concavely, so as to distinguish the convex 101 and the concave 102 of the original material plate more intuitively. The convex marks and the concave marks can be in various forms such as patterns, characters or combination thereof. By taking the patterns selected for the convex marks and the concave marks as examples, the writing pens can be used for making the number matching marks on the detected convex surfaces and the writing pens can be used for making the circle marks on the detected concave surfaces so as to distinguish the surfaces of the original material plates in different shapes.
In this embodiment, to obtain the material plate 100 to be processed with the concave surface 102 opposite to the convex surface 101, the following detection processes are performed:
as an embodiment, specifically, the raw material plate comprises two surfaces, and when one side surface of the raw material plate is detected to be a convex surface 101, convex surface marking is performed on the convex surface 101; further, after the convex surface 101 is marked, a technician or a motor-driven manipulator may turn over the raw material plate to expose a surface of the raw material plate opposite to the convex surface 101. It should be noted that the manner of turning over the raw material plate may also be other manners, and is not limited herein.
After exposing the surface on the side opposite to the convex surface 101, it is continuously detected whether the surface on the side opposite to the convex surface 101 is the concave surface 102. If the surface opposite to the convex surface 101 is a concave surface 102, the concave surface 102 is marked concavely. Wherein, the original material plate is the material plate 100 to be processed.
Further, if a side surface opposite to the convex surface 101 is a non-concave surface, the original material plate is not a material plate to be processed.
As another embodiment, specifically, when the concave surface 102 is detected as one side surface of the original plate, the concave surface 102 is marked; further, after the concave surface 102 is marked, the raw material plate can be turned over by a technician or by a motor-driven robot so as to expose the surface on the side opposite to the concave surface 102. It should be noted that the manner of turning over the raw material plate may also be other manners, and is not limited herein.
After exposing the surface on the side opposite to the concave surface 102, the detection is continued to detect whether the surface on the side opposite to the concave surface 102 is the convex surface 101. If the surface opposite to the concave surface 102 is a convex surface 101, the convex surface 101 can be marked convexly. Wherein, the original material plate is the material plate 100 to be processed.
Further, if a side surface opposite to the concave surface 102 is a non-convex surface, the original material plate is not a material plate to be processed.
Specifically, after the rough-surface detection is performed on the raw material plate, the material plate 100 to be processed may be removed from the detection platform and provided to the work table 200, and the operation of the next step (step S20) may be continued. On the premise of satisfying the conditions (thickness and size requirements, etc.), the non-to-be-processed material plate can be subjected to secondary processing as required to form the to-be-processed material plate 100 meeting the requirements. In addition, the non-processed material plate can be directly recovered by a technician or by adopting a mode of driving a mechanical arm by a motor. The recycling method herein may be other recycling methods as long as the non-processed material plate is recycled, and is not limited herein.
In this embodiment, through carrying out concave-convex surface detection to the original flitch to obtain the material board of treating that has the concave surface and the convex surface of relative setting, so that follow-up will treat that the material board is placed on workstation 200 with concave surface down and convex surface up's mode, can effectively avoid because the naked eye can't confirm treat the condition of concave surface and convex surface of material board, can effectively reduce the plane degree of follow-up keyboard.
In this embodiment, in order to detect whether the clearance distance between each apex angle of the original flitch and the testing platform exceeds a preset distance, a feeler gauge with a thickness of 0.1mm is selected for testing in this embodiment. Specifically, the clearance between each vertex angle of the original flitch and the detection platform is respectively plugged by the feeler gauge with the thickness of 0.1mm, and whether the clearance distance between each vertex angle of the original flitch and the detection platform exceeds a preset distance is determined by observing whether the feeler gauge can be plugged into each clearance.
In this embodiment, whether the gap distance between each vertex angle of the original flitch and the detection platform exceeds a preset distance is detected, so as to accurately and effectively determine which side surface of the original flitch is a concave surface and which side surface is a convex surface.
Further, a clearance gauge with the thickness of 0.1mm is sequentially plugged into the clearance between each vertex angle of the original flitch and the detection platform. It can be understood that, the primitive flitch is a rectangular flitch with four apex angles, and gaps are formed between the four apex angles of the primitive flitch and the detection platform, that is, four gaps are formed between the primitive flitch and the detection platform, so as to sequentially plug a feeler gauge with a thickness of 0.1mm into the gaps between the apex angles of the primitive flitch and the detection platform.
Specifically, if the feeler can be sequentially plugged into the gaps between the vertex angles of the original flitch and the detection platform, the surface of one side, close to the detection platform, of the original flitch is the convex surface 101, that is, the feeler can be plugged into the four gaps, and the surface of one side, close to the detection platform, of the original flitch is the convex surface 101. Further, if the feeler is respectively stopped outside the gaps between the top corners of the original flitch and the detection platform, that is, the feeler cannot be plugged into the gaps between the top corners of the original flitch and the detection platform, that is, cannot be plugged into the above four gaps, the surface of one side of the original flitch, which is close to the detection platform, is the concave surface 102.
In other embodiments, other methods may also be used for detecting, for example, a high-precision measuring device is used to detect a gap distance between each vertex angle of the raw material plate and the detection platform, or another method or device that can detect and determine whether the gap distance exceeds a preset distance is used.
And S20, placing the material plate 100 to be processed on the workbench 200 in a mode that the concave surface 102 faces downwards and the convex surface 101 faces upwards, and waiting for processing.
Specifically, since the flitch may generate deformation that the middle portion is concave and the edge is warped in the processing process, in this embodiment, as shown in fig. 2, the flitch to be processed 100 is placed on the workbench 200 in a state that the concave surface 102 faces downward and the convex surface 101 faces upward (i.e., in a state opposite to a subsequent processing deformation state) to be processed, so as to effectively reduce the degree of concavity of the middle portion of the flitch to be processed 100 and the degree of upwarp of the edge of the flitch to be processed in a form of a compensation method, thereby making the manufactured keyboard 100 'more flat and effectively reducing the flatness of the keyboard 100'.
Further, after the material plate 100 to be processed is placed on the worktable 200 with the concave surface 102 facing downward and the convex surface 101 facing upward for processing, as shown in fig. 3, since the material plate 100 to be processed is placed on the worktable 200 with the concave surface 102 facing downward and the convex surface 101 facing upward for processing, when the material plate 100 to be processed is processed, such as CNC processing or stamping processing, the convex surface 101 approaches the processing table 200, and since the convex surface 101 shares a part of stamping force, the force exerted on the four corners of the material plate 100 to be processed is small, so that the deformation of the four corners of the obtained molded keyboard 100 'is small, and specifically, the flatness d of the keyboard 100' may be lower than 0.7 mm.
And S30, processing the material plate 100 to be processed to obtain the formed keyboard 100'.
In the present embodiment, as shown in fig. 4, step S30 includes the following steps:
and S31, performing CNC rough machining on the material plate 100 to be machined and forming positioning holes.
Specifically, the positioning holes are formed outside the keyboard region of the material plate 100 to be processed, and through the arrangement of the positioning holes, the material plate 100 to be processed is positioned on the workbench 200, so that the post-processing of the material plate 100 to be processed is facilitated.
S32, performing injection molding on the material plate 100 to be processed, so as to form plastic on the lower side edge of the concave surface 102 of the material plate 100 to be processed (as shown in fig. 4).
And S33, performing CNC machining on the concave surface 102 and the convex surface 101 of the material plate 100 to be machined so as to correct the flatness of the material plate 100 to be machined.
In this embodiment, the step S33 includes: firstly, CNC machining is carried out on the convex surface 101 of the material plate 100 to be machined, and then CNC machining is carried out on the concave surface 102 of the material plate 100 to be machined. It should be noted that, the order of performing the CNC machining on the concave surface 102 and the convex surface 101 is not strictly required, and the CNC machining may also be performed on the concave surface 102 of the material plate 100 to be machined first, and then the CNC machining is performed on the convex surface 101 of the material plate 100 to be machined. Alternatively, it is also possible to complete the convex surface 101 and the concave surface 102 in one CNC machining process, provided that machining conditions are met.
And S34, stamping the material plate 100 to be processed to form a keyboard hole.
After the preparation work of the previous process is completed, the material plate 100 to be processed is punched, so that a keyboard hole is formed on the keyboard region.
S35, performing CNC machining on the outer periphery of the blank 100 to be machined to modify the outer periphery profile of the blank 10.
And S36, removing burrs and wet polishing to make the surface smoother and smoother.
And S37, spraying the surface to obtain the keyboard 100'.
The manufacturing method of the keyboard provided by the embodiment of the invention has the following advantages:
(1) the improved flatness yield can reach 100%, and the average value of the flatness is 0.18mm, which is far smaller than the specification of 0.7mm required by a customer, so that the requirement of the customer can be better met.
(2) Due to the good flatness, good precondition can be brought to the CNC for improving the processing speed. Specifically, the machining time before CNC acceleration is 39.5 minutes per piece, the machining time after the CNC acceleration can be increased to 28.5 minutes per piece, and each piece can save about 11 minutes of machining time.
As shown in fig. 5, it is a keyboard 100' according to an embodiment of the present invention.
The keyboard 100' is manufactured by adopting the manufacturing method of the keyboard of any one of the embodiments. In this embodiment, the keyboard 100' is a keyboard of a notebook computer.
The keyboard 100 'is manufactured by placing the material plate 100 to be processed on a workbench 200 (as shown in fig. 2) in a manner that the concave surface 102 faces downwards and the convex surface 101 faces upwards, so as to achieve the purpose of reducing the flatness of the keyboard 100'.
Meanwhile, the invention also provides electronic equipment.
The electronic device includes the keyboard 100'. In this embodiment, the electronic device is a notebook computer.
The keyboard 100 'in the electronic device is manufactured by placing the material plate 100 to be processed on the workbench 200 (as shown in fig. 2) in a manner that the concave surface 102 faces downwards and the convex surface 101 faces upwards, so as to achieve the purpose of reducing the flatness of the keyboard 100'.
The technical features of the above embodiments can be arbitrarily combined, and for the sake of brevity, all possible combinations of the technical features in the above embodiments are not described, but should be considered as the scope of the present specification as long as there is no contradiction between the combinations of the technical features.
The above examples only express preferred embodiments of the present invention, and the description thereof is more specific and detailed, but not construed as limiting the scope of the invention. It should be noted that, for a person skilled in the art, several variations and modifications can be made without departing from the inventive concept, which falls within the scope of the present invention. Therefore, the protection scope of the present patent shall be subject to the appended claims.
Claims (9)
1. A manufacturing method of a keyboard is characterized in that: the method comprises the following steps:
detecting the concave-convex surface of the original material plate to obtain a material plate to be processed; the material plate to be processed comprises a concave surface and a convex surface opposite to the concave surface;
placing the material plate to be processed on a workbench in a mode that the concave surface faces downwards and the convex surface faces upwards to wait for processing;
and processing the material plate to be processed to obtain a formed keyboard.
2. The method for manufacturing the keyboard according to claim 1, wherein the detecting the concave-convex surface of the raw material plate comprises:
placing the original flitch on a detection platform, and respectively detecting whether the gap distance between each vertex angle of the original flitch and the detection platform exceeds a preset distance;
if the clearance distance between each vertex angle of the original flitch and the detection platform exceeds a preset distance, the surface of one side, close to the detection platform, of the original flitch is a convex surface;
and if the clearance distance between each top angle of the original flitch and the detection platform does not exceed the preset distance, the surface of one side, close to the detection platform, of the original flitch is a concave surface.
3. The method of claim 2, wherein the predetermined distance is 0.1 mm.
4. The method for manufacturing a keyboard according to claim 2, wherein the detecting of the concave-convex surface of the raw material plate further comprises:
carrying out convex surface marking on the detected convex surface;
and marking the detected concave surface.
5. The method for manufacturing a keyboard according to claim 2, wherein the detecting of the concave-convex surface of the raw material plate further comprises:
when the surface of one side of the original material plate is detected to be a convex surface, detecting whether the surface of one side opposite to the convex surface is a concave surface;
and if the surface of one side opposite to the convex surface is a concave surface, the original material plate is a material plate to be processed.
6. The method for manufacturing a keyboard according to claim 5, wherein the detecting of the concave-convex surface of the raw material plate further comprises:
when the surface of one side of the original material plate is detected to be a concave surface, detecting whether the surface of one side opposite to the concave surface is a convex surface;
and if the surface of one side opposite to the concave surface is a convex surface, the original material plate is a material plate to be processed.
7. The method for manufacturing a keyboard according to claim 1, wherein the raw material plate is a rectangular material plate.
8. A keyboard manufactured by the method of manufacturing a keyboard according to any one of claims 1 to 7.
9. An electronic device comprising the keyboard of claim 8.
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| Application Number | Priority Date | Filing Date | Title |
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| CN202011295339.0A CN112509841B (en) | 2020-11-18 | 2020-11-18 | Manufacturing method of keyboard, keyboard and electronic equipment |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202011295339.0A CN112509841B (en) | 2020-11-18 | 2020-11-18 | Manufacturing method of keyboard, keyboard and electronic equipment |
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| CN112509841A true CN112509841A (en) | 2021-03-16 |
| CN112509841B CN112509841B (en) | 2022-11-29 |
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| JP2881146B1 (en) * | 1998-03-31 | 1999-04-12 | 日本特殊陶業株式会社 | Inspection apparatus, inspection method, and method for manufacturing bumped substrate |
| CN1719194A (en) * | 2004-07-07 | 2006-01-11 | 中国科学院力学研究所 | A kind of curved face measurement method |
| EP1983535A2 (en) * | 2007-04-16 | 2008-10-22 | Pasquale Cacchio | Keyboard and related manufacturing process |
| CN203232829U (en) * | 2013-04-25 | 2013-10-09 | 东莞万德电子制品有限公司 | Placement tool adjusting keycap surface radian |
| CN104723400A (en) * | 2015-04-14 | 2015-06-24 | 大族激光科技产业集团股份有限公司 | Method for drilling plastic plates |
| TW201903804A (en) * | 2017-06-01 | 2019-01-16 | 達方電子股份有限公司 | Key switch with capability of noise reduction and assembly method thereof |
-
2020
- 2020-11-18 CN CN202011295339.0A patent/CN112509841B/en active Active
Patent Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2881146B1 (en) * | 1998-03-31 | 1999-04-12 | 日本特殊陶業株式会社 | Inspection apparatus, inspection method, and method for manufacturing bumped substrate |
| CN1719194A (en) * | 2004-07-07 | 2006-01-11 | 中国科学院力学研究所 | A kind of curved face measurement method |
| EP1983535A2 (en) * | 2007-04-16 | 2008-10-22 | Pasquale Cacchio | Keyboard and related manufacturing process |
| CN203232829U (en) * | 2013-04-25 | 2013-10-09 | 东莞万德电子制品有限公司 | Placement tool adjusting keycap surface radian |
| CN104723400A (en) * | 2015-04-14 | 2015-06-24 | 大族激光科技产业集团股份有限公司 | Method for drilling plastic plates |
| TW201903804A (en) * | 2017-06-01 | 2019-01-16 | 達方電子股份有限公司 | Key switch with capability of noise reduction and assembly method thereof |
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| Publication number | Publication date |
|---|---|
| CN112509841B (en) | 2022-11-29 |
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