CN109000564A - A kind of keycap assembling method for testing performance and automatic detection device - Google Patents
A kind of keycap assembling method for testing performance and automatic detection device Download PDFInfo
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- CN109000564A CN109000564A CN201810832946.2A CN201810832946A CN109000564A CN 109000564 A CN109000564 A CN 109000564A CN 201810832946 A CN201810832946 A CN 201810832946A CN 109000564 A CN109000564 A CN 109000564A
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- keycap
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- template drawing
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- G—PHYSICS
- G01—MEASURING; TESTING
- G01B—MEASURING LENGTH, THICKNESS OR SIMILAR LINEAR DIMENSIONS; MEASURING ANGLES; MEASURING AREAS; MEASURING IRREGULARITIES OF SURFACES OR CONTOURS
- G01B11/00—Measuring arrangements characterised by the use of optical techniques
-
- G—PHYSICS
- G01—MEASURING; TESTING
- G01B—MEASURING LENGTH, THICKNESS OR SIMILAR LINEAR DIMENSIONS; MEASURING ANGLES; MEASURING AREAS; MEASURING IRREGULARITIES OF SURFACES OR CONTOURS
- G01B11/00—Measuring arrangements characterised by the use of optical techniques
- G01B11/14—Measuring arrangements characterised by the use of optical techniques for measuring distance or clearance between spaced objects or spaced apertures
-
- G—PHYSICS
- G01—MEASURING; TESTING
- G01B—MEASURING LENGTH, THICKNESS OR SIMILAR LINEAR DIMENSIONS; MEASURING ANGLES; MEASURING AREAS; MEASURING IRREGULARITIES OF SURFACES OR CONTOURS
- G01B11/00—Measuring arrangements characterised by the use of optical techniques
- G01B11/26—Measuring arrangements characterised by the use of optical techniques for measuring angles or tapers; for testing the alignment of axes
-
- G—PHYSICS
- G01—MEASURING; TESTING
- G01N—INVESTIGATING OR ANALYSING MATERIALS BY DETERMINING THEIR CHEMICAL OR PHYSICAL PROPERTIES
- G01N21/00—Investigating or analysing materials by the use of optical means, i.e. using sub-millimetre waves, infrared, visible or ultraviolet light
- G01N21/84—Systems specially adapted for particular applications
-
- G—PHYSICS
- G01—MEASURING; TESTING
- G01N—INVESTIGATING OR ANALYSING MATERIALS BY DETERMINING THEIR CHEMICAL OR PHYSICAL PROPERTIES
- G01N21/00—Investigating or analysing materials by the use of optical means, i.e. using sub-millimetre waves, infrared, visible or ultraviolet light
- G01N21/84—Systems specially adapted for particular applications
- G01N2021/8411—Application to online plant, process monitoring
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- General Physics & Mathematics (AREA)
- Health & Medical Sciences (AREA)
- Life Sciences & Earth Sciences (AREA)
- Chemical & Material Sciences (AREA)
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Abstract
The present invention discloses a kind of keycap assembling method for testing performance and automatic detection device, wherein, keycap assembling method for testing performance includes the following steps: the polishing mode using top light and/or sidelight, the qualified surface of keyboard template drawing of keycap assembling is obtained, which contains the location information of each keycap；Surface of keyboard image to be measured is obtained under the conditions of same light is shone；Each keycap position in surface of keyboard image to be measured and surface of keyboard template drawing is compared, when each keycap location information difference, which meets detection accuracy, to be required, illustrates that keycap assembling is qualified, is otherwise unqualified.Keycap assembling property automatic detection device based on the detection method includes device pedestal, the image acquisition component of monitor station and its top is fixed on device pedestal, and monitor station front, rear, left and right side is respectively equipped with light source；Further include that the image being electrically connected with image acquisition component stores comparison module, receives storage keyboard surface image information, is compared with template drawing.
Description
Technical field
The present invention relates to a kind of keycap assembling method for testing performance and keycap assembling property automatic detection devices, belong to keyboard
Production technical field.
Background technique
Traditional keyboard assembling production is usually manual operation, manual inspection, wherein keycap is generally by the way of pressing
Assembling, keycap setting angle, height of keycap, keycap peripheral clearance etc. can all influence the use and the beauty of keyboard entirety of keycap,
Therefore the detection of keycap assembled position is very necessary, also critically important, and still, existing keycap position detection is generally by naked eyes
Observation, naked-eye observation precision is limited, can only find some apparent differences, and observation time it is long be easy to produce visual fatigue,
Accuracy of observation is further influenced, being easy to cause some keycaps to assemble underproof product can not detected, and lead to final product quality
Unstable, defect rate and rework rate are high；In addition, artificially time-consuming for observation, and long-term observation is easy to produce visual fatigue, needs to determine
Phase rest is observed again, so that the low efficiency of keycap detection.
Summary of the invention
Goal of the invention: existing keycap assembled position detection there are aiming at the problem that, the present invention provides a kind of keycap assemblability
Energy detection method, and based on this method provides corresponding keycap assembling property automatic detection devices.
Technical solution: a kind of keycap assembling method for testing performance of the present invention includes the following steps:
(1) using the polishing mode of top light and/or sidelight, the qualified surface of keyboard template drawing of keycap assembling is obtained, it should
Template drawing face contains the location information of each keycap；
(2) surface of keyboard image to be measured is obtained under the conditions of same light is shone；
(3) each keycap position in surface of keyboard image and surface of keyboard template drawing to be measured is compared, when each keycap position
When breath difference meets detection accuracy requirement, illustrates that keycap assembling is qualified, be otherwise unqualified.
Wherein, the location information of keycap includes the rotation angle of keycap and the position gap of the keycap, wherein the rotation of keycap
Gyration is angle of the keycap relative to key center axis where it, and the position gap of keycap includes the keycap and adjacent keycap
Between at the top of keyboard between and the distance between with keyboard bottom.
The detection accuracy of keycap rotation angle and the position gap of keycap requires to be preset according to processing request, preferably
, the detection accuracy of position gap can be preset as being less than 0.15mm, the detection accuracy for rotating angle is preset as 1 °, that is, when certain
The keycap of one position in surface of keyboard image each position gap and its difference between each position gap in template drawing
When value is respectively less than 0.15mm, illustrate that the position gap of the keycap is met the requirements；When the keycap of a certain position is in surface of keyboard image
In rotation angle and difference between the rotation angle in template drawing less than 1 ° when, illustrate that the rotation angle of the keycap is full
Foot requires.
A kind of keycap assembling property automatic detection device of the invention, including device pedestal are fixed with inspection on device pedestal
Scaffold tower and the image acquisition component being positioned above, and monitor station front, rear, left and right side is equipped with light source；It further include that image is deposited
Comparison module is stored up, which stores the qualified surface of keyboard template drawing of the keycap assembling built in comparison module, and itself and image
Acquisition component is electrically connected, for receives the surface of keyboard image to be measured of storage image acquisition component acquisition and by the image and
Keycap location information in surface of keyboard template drawing is compared, calculates；Surface of keyboard image to be measured takes illumination item when phase
Part and surface of keyboard template drawing are identical when taking phase.Wherein, before monitor station light direction of illumination direct projection product, referred to as top light；Inspection
The light of right side rear side slants product on the left of scaffold tower, is sidelight.
When the difference of keycap location information, which meets detection accuracy, to be required, illustrate that detection is qualified.Specifically, keycap position
Information includes the rotation angle of each keycap and the position gap of the keycap, wherein the rotation angle of keycap is that the keycap is opposite
Angle of key center axis where it, it is preferred that when a certain position rotation angle of the keycap in surface of keyboard image with
When difference between the rotation angle in template drawing is less than 1 °, the rotation angle of the keycap is met the requirements；The position of keycap
Gap include between the keycap and adjacent keycap keyboard at the top of between and the gap between keyboard bottom, it is preferred that when
The keycap of a certain position in surface of keyboard image each position gap and its between each position gap in template drawing
When difference is respectively less than 0.15mm, illustrate that the position gap of the keycap is met the requirements.
Above-mentioned image storage comparison module include the image storage module being electrically connected with image acquisition component and with figure
As the image comparison module that memory module connects, the image comparison module built-in keybad surface template drawing and image compare journey
Sequence.
Preferably, which may also include the barcode scanning gun being fixed on device pedestal, sweep
Code rifle and image comparison module are electrically connected；Image comparison module may include the surface of keyboard template drawing of multiple machines, connect
The keyboard machine information of barcode scanning gun acquisition is received, surface of keyboard template drawing corresponding with the machine is matched, is with acquisition to be measured
Surface of keyboard image is compared.
Further, it may also include the light source control module with barcode scanning gun and the electric connection of each light source, the light source control mould
The illumination standard information of multiple machines built in block, wherein the illumination standard information of each machine includes the switch state of each light source
Information and light intensity information；Light source control module receives the keyboard machine information that barcode scanning gun obtains, matches and meet the machine
Illumination standard information, light conditions and the machine surface of keyboard template drawing when then feeding back to each light source, making to take phase take
Illumination condition when phase is identical.
Preferably, keycap assembling property automatic detection device of the invention may also include driving part and induction control
Component, for driving part for driving keyboard to be measured to reach monitor station, induction control unit includes for incuding keyboard position to be measured
Inductor and information for receiving inductor induction and issue movement or halt instruction to driving part according to the information
Controller.
The utility model has the advantages that compared with the prior art, the advantages of the present invention are as follows: (1) keycap of the invention assembles performance detection
Method obtains surface of keyboard image to be measured by multi-direction polishing capture, the image be able to reflect out keycap rotation angle, on
It is compared with template drawing, can accurately identify underproof completed knocked down products and assembling by lower left and right clearance condition
Position largely reduces the error of naked eyes detection, reduction in the numbers of seconds and rework rate, improves final product quality；(2) of the invention
Keycap assembling property automatic detection device can assembling situation quickly and accurately to keycap carry out detection and substandard product
Identification is detected by mechanization and is compared, while improving recognition accuracy, substantially increases detection speed；The equipment is used
In keyboard assembly line, the whole efficiency of production line can be improved.
Detailed description of the invention
Fig. 1 is the structural schematic diagram of keycap assembling property automatic detection device of the invention；
Fig. 2 is the whole control process of keycap assembling property automatic detection device of the invention.
Specific embodiment
Technical solution of the present invention is described further with reference to the accompanying drawing.
Keyboard assembling may include following steps: first by raw material dedusting, raw material includes wiring board and bottom plate, secondly by route
Plate and bottom plate assemble, then successively assemble scissor, keycap, then the print character on keycap, and finally labeling, dedusting are obtained into
Product, packaging.Keycap be completed after, before character printing, need to assembling to each keycap whether qualification detects, key of the invention
Cap assembling property detection method is the detection for the installation site of keycap.
Specifically, a kind of keycap of the invention assembles method for testing performance, include the following steps:
(1) using the polishing mode of top light and/or sidelight, the qualified surface of keyboard template drawing of keycap assembling is obtained, it should
Template drawing face contains the location information of each keycap；It, can be by the camera perpendicular alignmnet keycap set of image acquisition component when taking phase
Qualified keyboard is filled, according to keyboard concrete type immediately ahead of it and/or each side (left side, right side, rear side) polishing, is adjusted simultaneously
Whole light intensity, shoots surface of keyboard template drawing, which can clearly reflect keycap positional structure；
(2) surface of keyboard image to be measured is obtained under the conditions of same light is shone；Identical illumination condition includes identical polishing side
Formula and identical light intensity；
(3) surface of keyboard image to be measured is carried out keycap position with surface of keyboard template drawing to compare, when keycap position is believed
When breath difference meets detection accuracy requirement, illustrates that keycap assembling is qualified, be otherwise unqualified.
Wherein, keycap location information includes the rotation angle of keycap and the position gap of the keycap.The rotation angle of keycap
Angle for the keycap relative to the central axis of key where it, the position gap of keycap include the keycap and adjacent keycap it
Between at the top of keyboard between and the distance between with keyboard bottom.The detection accuracy requirement of keycap location information generally can root
It is preset according to processing request, is such as preset as the detection accuracy of keycap position gap to be less than 0.15mm, indicate to work as a certain position
Keycap in surface of keyboard image each position gap and its difference between each position gap in template drawing it is small
When 0.15mm, the position gap of the keycap is met the requirements；For another example the detection accuracy of keycap rotation angle is preset as 1 °, indicated
When the keycap of a certain position is in the rotation angle in surface of keyboard image and the difference between the rotation angle in template drawing
Less than 1 °, illustrate that the rotation angle of the keycap is met the requirements.
The detection method obtains surface of keyboard image to be measured by multi-direction polishing capture, which is able to reflect out keycap
Rotation angle, clearance condition up and down, it is compared with template drawing, can accurately identify underproof group
Product and assembled position are filled, the error of naked eyes detection, reduction in the numbers of seconds and rework rate are largely reduced, is improved into quality
Amount.
Method for testing performance is assembled based on keycap of the invention, the present invention also provides a kind of keycap assembling properties to examine automatically
Survey device.
Such as Fig. 1, which includes device pedestal 1, and monitor station 2 and Image Acquisition are fixed on device pedestal 1
Component 3, monitor station 2 are located at right above monitor station 2 for placing keyboard to be measured, image acquisition component 3, can be camera head, phase
Head vertically downward, in alignment with monitor station 2；The front, rear, left and right side of monitor station 2 is provided with light source, respectively front side light source
41, (right side source and left side light source are oppositely arranged, right due to viewing angles for rear side light source 42, left side light source 43 and right side source
Side light source is not shown in Fig. 1), the direction of illumination direct projection product of monitor station front side light source 41, referred to as top light；On the left of monitor station,
The light source of right side and rear side slants product, is sidelight, by the way that light source is arranged in monitor station front, rear, left and right side, can form top light
Or the polishing mode of sidelight, polishing mode is chosen according to the concrete condition of keyboard when detection, selection condition is to guarantee to take mutually to produce
Product structure or surface are clear, by choosing polishing mode, can carry out taking phase to product with more intuitive, disappear when to take phase and take product not
Necessary shade；Phase is taken to keyboard to be measured by multi-angle polishing, can get on keyboard to be measured each keycap lateral, longitudinal
Position.
The automatic detection device further includes image storage comparison module, such as Fig. 2 comprising image storage module and image ratio
To module, wherein image storage module and image acquisition component 3 are electrically connected, and receive and store the acquisition of image acquisition component 3
Surface of keyboard image to be measured；Image comparison module is connect with image storage module, the surface of keyboard of built-in keycap installation qualification
Template drawing and image alignment programs, the surface of keyboard image to be measured that image comparison module stores image storage module with it is right
The surface of keyboard template drawing answered is compared, and calculates to the keycap location information difference in figure；Keycap location information packet
The rotation angle of each keycap and the position gap of the keycap are included, when the difference of keycap location information meets detection accuracy requirement
When, illustrate that detection is qualified.The qualified surface of keyboard template drawing of keycap assembling is to be stored in image comparison module after obtaining in advance
In, subsequent surface of keyboard image to be measured takes illumination condition and surface of keyboard template drawing when phase to take being consistent when phase.This
The automatic detection device of invention may include industrial personal computer, and setting image stores comparison module in industrial personal computer, realize image compare and
The extraction and measuring and calculating of keycap location information；Industrial personal computer can be fixed on device pedestal 1.
The keycap of built-in multiple machines installs template drawing in image comparison module, to realize heterogenous detection, this hair
Bright automatic detection device may also include barcode scanning gun 5, and barcode scanning gun 5 is fixed on device pedestal 1, and electrical with image comparison module
Connection, image comparison module receive the keyboard machine information of the acquisition of barcode scanning gun 5, match surface of keyboard sample corresponding with the machine
Plate drawing is compared with the surface of keyboard image information to be measured obtained.
Keycap assembles in automatic performance detection system, and also settable light source control module realizes the automatic of illumination condition
It adjusts.Light source control module and barcode scanning gun 5 and each light source 41,42,43 are electrically connected, the illumination standard letter of built-in multiple machines
Breath, the illumination standard information of each machine includes the switching-state information and light intensity information of each light source；Light source control module
Receive barcode scanning gun 5 obtain keyboard machine information, match the illumination standard information for meeting the machine, then feed back to light source,
Light conditions when making to take phase take illumination condition when phase identical with the machine surface of keyboard template drawing.Light source control module
It may be provided in industrial personal computer, industrial personal computer may include artificial setting window, and illumination standard information can be preparatory by the way that window is manually arranged
It sets；For a certain machine, phase situation is taken to manually adjust polishing mode and light intensity according to camera, record obtains keyboard table
Then Lighting information when the template drawing of face is inputted, the illumination standard information as the machine by manually setting window.
For the further automation for realizing detection device, automatic detection device of the invention may also include driving part and sense
Control unit is answered, it can be servo motor that driving part, which reaches monitor station 2 for transporting keyboard to be measured,；Incude control unit packet
Inductor and controller are included, the two is electrically connected, wherein inductor is used to incude the position of keyboard to be measured, and controller receives sense
It answers the information of device induction and issues the instruction of movement or stop motion to driving part according to the information.Wherein, inductor is fixed
On device pedestal 1, controller can be located inside industrial personal computer.
Automatic detection device of the invention, which may also include, stops positioning element 6, can be stop cylinder, when driving part drives
When moving keyboard to be measured and reaching monitor station 2, inductor senses keyboard to be measured in place, transfers information to controller, controller control
Stop cylinder processed rises, and positions to keyboard to be measured.
The work process of keycap assembling property automatic detection device of the invention is as follows:
Support plate 101 carries keyboard 100 to be measured and is sent to scissor assembling property automatic detection of the invention through conveyer belt
System entry, inductor sense that 101 position of support plate transfers information to controller, and controller notifies driving part to transport support plate
101 to monitor station 2, and support plate 101 carries after keyboard 100 to be measured reaches monitor station 2, and inductor is again by 101 location information of support plate
It is transferred to controller, controller notice stops positioning element 6 to stop support plate 101, position to keyboard 100 to be measured；
Support plate 101 in place after, barcode scanning gun 5 scans keyboard 100 to be measured and obtains machine information and be transferred to light source control module
With image comparison module, light source control module matches the illumination standard information of corresponding machine and feeds back to front, rear, left and right side
Light source, front, rear, left and right side light source is opened or closed according to light source standard information and light intensity also reaches particular state, most
The illumination condition presented eventually and the surface of keyboard template drawing of the machine are identical when taking phase；Meanwhile image comparison module matches
The surface of keyboard template drawing of corresponding machine；
After inductor senses support plate 101 in place, controller is transferred information to, controller notifies image acquisition component 3
Phase is taken under particular light intensity；
The surface of keyboard image to be measured that image acquisition component 3 acquires successively is transmitted to image storage module and image compares mould
Block is compared by the image alignment programs built in image comparison module with surface of keyboard template drawing, and to surface of keyboard
The keycap location information of template drawing and surface of keyboard figure to be measured extracts and calculates；As each keycap location information meets detection
Required precision illustrates that keycap assembling is qualified, flows out the automatic detection device, into next website, such as detects unqualified, inflow
Defective products maintenance station repairs, and after maintenance, is fed again into automatic detection device detection.
Claims (10)
1. a kind of keycap assembles method for testing performance, which is characterized in that include the following steps:
(1) using the polishing mode of top light and/or sidelight, the qualified surface of keyboard template drawing of keycap assembling, the template are obtained
Drawing contains the location information of each keycap；
(2) surface of keyboard image to be measured is obtained under the conditions of same light is shone；
(3) each keycap position in surface of keyboard image and surface of keyboard template drawing to be measured is compared, when each keycap location information
When difference meets detection accuracy requirement, illustrates that keycap assembling is qualified, be otherwise unqualified.
2. keycap according to claim 1 assembles method for testing performance, which is characterized in that the location information packet of the keycap
Include the rotation angle of keycap and the position gap of the keycap, wherein the rotation angle of keycap is that the keycap is pressed relative to its place
The angle of key central axis, the position gap of keycap include between the keycap and adjacent keycap keyboard at the top of between and and key
The distance between pan bottom.
3. keycap according to claim 2 assembles method for testing performance, which is characterized in that when a certain keycap is in keyboard to be measured
When position gap difference in surface image and surface of keyboard template drawing is respectively less than 0.15mm, the position gap of the keycap meets
It is required that；When rotation angle difference of a certain keycap in surface of keyboard image to be measured and surface of keyboard template drawing is less than 1 °,
The rotation angle of the keycap is met the requirements.
4. a kind of keycap assembling property automatic detection device, which is characterized in that including device pedestal, inspection is fixed on device pedestal
Scaffold tower and the image acquisition component being positioned above, and monitor station front, rear, left and right side is equipped with light source；It further include that image is deposited
Comparison module is stored up, which stores the qualified surface of keyboard template drawing of the keycap assembling built in comparison module, and itself and image
Acquisition component is electrically connected, for receives the surface of keyboard image to be measured of storage image acquisition component acquisition and by the image and
Keycap location information in surface of keyboard template drawing is compared, calculates；The surface of keyboard image to be measured takes light when phase
It takes identical when condition and surface of keyboard template drawing take picture.
5. keycap assembling property automatic detection device according to claim 4, which is characterized in that the keycap location information
Including the rotation angle of each keycap and the position gap of the keycap, wherein the rotation angle of keycap is the keycap relative to it
The angle of place key center axis, the position gap of keycap include between the keycap and adjacent keycap keyboard at the top of between with
And the gap between keyboard bottom.
6. keycap assembling property automatic detection device according to claim 5, which is characterized in that when a certain keycap is in keyboard
When rotation angle difference in surface image and template drawing is less than 1 °, the rotation angle of the keycap is met the requirements；When a certain key
When position gap difference of the cap in surface of keyboard image and template drawing is less than 0.15mm, illustrate that the position gap of the keycap is full
Foot requires.
7. keycap assembling property automatic detection device according to claim 4, which is characterized in that described image storage compares
Module includes that the image storage module being electrically connected with image acquisition component and the image connecting with image storage module compare
Module, the image comparison module built-in keybad surface template drawing and image alignment programs.
8. keycap assembling property automatic detection device according to claim 4, which is characterized in that further include being fixed on device
Barcode scanning gun on pedestal, the barcode scanning gun and image comparison module are electrically connected, and image comparison module includes the key of a variety of machines
Panel surface template drawing receives the keyboard machine information of barcode scanning gun acquisition, matches the surface of keyboard template for meeting the machine
Drawing is compared with the surface of keyboard image to be measured of acquisition.
9. keycap assembling property automatic detection device according to claim 8, which is characterized in that further include and the barcode scanning
The light source control module that rifle and each light source are electrically connected, the illumination standard information of multiple machines built in the light source control module,
In, the illumination standard information of each machine includes the switching-state information and light intensity information of each light source；The light source control
Module receives the keyboard machine information of barcode scanning gun acquisition, matches the illumination standard information for meeting the machine, then feeds back to each
Light source, light conditions when making to take phase take illumination condition when phase identical with the machine surface of keyboard template drawing.
10. keycap assembling property automatic detection device according to claim 4, which is characterized in that further include driving part
With induction control unit, for the driving part for driving keyboard to be measured to reach monitor station, induction control unit includes for feeling
It answers the inductor of keyboard position to be measured and the information for receiving inductor induction and is issued according to the information to driving part and transported
Dynamic or halt instruction controller.
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| Application Number | Priority Date | Filing Date | Title |
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| CN201810832946.2A CN109000564A (en) | 2018-07-26 | 2018-07-26 | A kind of keycap assembling method for testing performance and automatic detection device |
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Cited By (6)
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| CN110658194A (en) * | 2019-09-30 | 2020-01-07 | 联想(北京)有限公司 | Keyboard detection method and keyboard detection equipment |
| CN111815621A (en) * | 2020-07-27 | 2020-10-23 | 北京联想软件有限公司 | Data processing method and device and electronic equipment |
| CN112051279A (en) * | 2019-06-06 | 2020-12-08 | 深圳市瑞微智能有限责任公司 | Circuit board welding quality detection method and assembly |
| CN112642752A (en) * | 2019-10-10 | 2021-04-13 | 泰克元有限公司 | Sorting machine for processing electronic parts |
| CN113532332A (en) * | 2021-06-08 | 2021-10-22 | 宁波帅特龙集团有限公司 | Method and device for detecting workpiece installation angle |
| CN117232384A (en) * | 2023-07-12 | 2023-12-15 | 深圳市精科实业有限公司 | Key cap position detection method, device and system |
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