CN106019140A - Multifunctional key test machine and test method - Google Patents
Multifunctional key test machine and test method Download PDFInfo
- Publication number
- CN106019140A CN106019140A CN201610629009.8A CN201610629009A CN106019140A CN 106019140 A CN106019140 A CN 106019140A CN 201610629009 A CN201610629009 A CN 201610629009A CN 106019140 A CN106019140 A CN 106019140A
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- China
- Prior art keywords
- keyboard
- axis
- station
- test machine
- frame
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Classifications
-
- G—PHYSICS
- G01—MEASURING; TESTING
- G01R—MEASURING ELECTRIC VARIABLES; MEASURING MAGNETIC VARIABLES
- G01R31/00—Arrangements for testing electric properties; Arrangements for locating electric faults; Arrangements for electrical testing characterised by what is being tested not provided for elsewhere
- G01R31/327—Testing of circuit interrupters, switches or circuit-breakers
- G01R31/3277—Testing of circuit interrupters, switches or circuit-breakers of low voltage devices, e.g. domestic or industrial devices, such as motor protections, relays, rotation switches
-
- G—PHYSICS
- G01—MEASURING; TESTING
- G01M—TESTING STATIC OR DYNAMIC BALANCE OF MACHINES OR STRUCTURES; TESTING OF STRUCTURES OR APPARATUS, NOT OTHERWISE PROVIDED FOR
- G01M13/00—Testing of machine parts
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- Physics & Mathematics (AREA)
- General Physics & Mathematics (AREA)
- Input From Keyboards Or The Like (AREA)
Abstract
The invention relates to a multifunctional key test machine and test method. The multifunctional key test machine comprises a rack, multiple station seats are arranged on the rack side by side, and one or more keyboard stations are arranged on each station seat; the rack is provided with a detection rack capable of moving along the X axis, the Y axis and the Z axis, one or more pressure sensors corresponding to the keyboard stations are arranged on the detection rack, and the pressure sensors are connected to a data collecting card which is connected with a host processor. According to the multifunctional key test machine and test method, multiple station seats are additionally arranged, other station seats can be assembled or disassembled when one station seat is detected, and the detection efficiency is improved; detection on multiple keyboards can be conducted rapidly by means of multiple keyboard parameters stored in the host processor, the hand feeling and conduction function of the keyboards are detected automatically, the detection result is accurate, and the efficiency is high.
Description
Technical field
The present invention relates to a kind of multifunction push key test machine and method of testing, belong to testing for electrical equipment field.
Background technology
Electronic installation all has the button being available for users to operation, and the quality of button directly affects user pair
The function controlling of electronic installation, therefore, carries out test for the necessary flow process before product export to button.Tradition
Key testing program, be to be gone by each button on this keyboard with finger by a tester.If able to just
Really differentiate each button that this tester is pressed, and perform corresponding running according to this, mean that this is to be measured
Button is normal, otherwise, means that this button to be measured is defective products.But button to be detected or keyboard
Substantial amounts, if Test Engineer only performs all tests by manual key, not only test speed is slow,
Efficiency is low, it is also possible to cause the omission of test.
The more important thing is, the properties of button all has default numerical value specification, the support force model of such as button
Enclose, button to the pressing sensitivity of power or the resilience force scope of button, all need to meet institute of manufacturer pre-
If numerical value specification, to provide the use experience that user is good.But manual testing, it is only capable of according to test
" feel " experience of engineer, to judge the properties of button, it is impossible to quantifies to replicate, causes button to survey
Examination progress is slow, is not inconsistent economic benefit.And the subjective determination of Test Engineer, and cannot detect accurately
The performance going out button falls in default numerical value specification the most accurately, and the performance causing each button to be represented has
Institute is different, and then makes the user experience of each user, the most difference.
Summary of the invention
The technical problem to be solved in the present invention is: for overcoming the problems referred to above, it is provided that a kind of multifunction push key test
Machine and method of testing.
The technical solution adopted for the present invention to solve the technical problems is:
A kind of multifunction push key test machine, including frame, described frame is provided with multiple work being arranged side by side
Position seat, described station seat is provided with one or more keyboard station, described frame is provided with can X-axis,
The testing stand that Y-axis and Z axis move, described testing stand is provided with the one or more of corresponding described keyboard station
Pressure transducer, described pressure transducer is connected to data collecting card, and described data collecting card connects upper place
Reason device.
Preferably, the frame of the plurality of station seat side is provided with X-axis track, on described X-axis track
It is provided with moveable X-axis pedestal, described X-axis pedestal is provided with Z axis track, on described Z axis track
Movably it is provided with Z axis pedestal, described Z axis pedestal is provided with Y-axis track, on described Y-axis track
Described testing stand is movably set.
Preferably, described X-axis pedestal, Z axis pedestal and testing stand are driven by motor, described motor and pressure
Sensor is connected with the PLC being arranged in described frame.
Preferably, described keyboard station is c-type station, and described c-type station includes two ends and centre
Straight type section, said two end is respectively arranged with fixing bar and fixing slot in both sides.
Preferably, described frame is additionally provided with the control keyboard being connected with described Upper Processor or display.
Preferably, described frame is arranged with telescopic heel brace, is additionally provided with multiple roller under described frame.
A kind of key-press test method applying above-described multifunction push key test machine, comprises the following steps:
(1) first the keyboard needing detection is loaded on the plurality of station seat, then described testing stand is moved
Move on one of them station seat；
(2) described pressure transducer under press and rise during output signal to described data collecting card,
Described data collecting card carries out data acquisition and is then transferred to described Upper Processor；
(3) the data genaration pressure curve that described Upper Processor will collect, and carry out data analysis, sentence
The feel determining button is the most qualified.
Preferably, described step (3) is specially pressure detecting step: described Upper Processor will collect
Data genaration pressure curve, sets according to keyboard model and goes journey and the crest of backhaul and the parameter of trough, when adopting
When the pressure curve that collection generates reaches the parameter set, it is keyboard feel qualified, does not reaches the parameter of setting
Time, it is keyboard feel defective.
Preferably, Function detection step is also included: under described pressure transducer during pressure, utilize described pressure
The button of the deadweight conducting keyboard of sensor, judges that the keypress function of keyboard is the most qualified.
Preferably, the result of described pressure detecting step and Function detection step is combined, comprehensive descision key
Dish whether conformance with standard.
The invention has the beneficial effects as follows: invention increases multiple station seat, while detecting one of them,
Other can load and unload, and improves detection efficiency, and the present invention by Upper Processor store multiple
Keyboard parameter, can carry out the detection of multiple keyboard efficiently, and automatically detect feel and the conducting of keyboard
Function, testing result is accurate and efficiency is high.
Accompanying drawing explanation
The present invention is further described with embodiment below in conjunction with the accompanying drawings.
Fig. 1 is the front view of one embodiment of the invention；
Fig. 2 is the axonometric chart of one embodiment of the invention；
Fig. 3 is the side view of one embodiment of the invention；
Fig. 4 is the front view of an embodiment of keyboard station of the present invention.
Labelling in figure: 1-frame, 2-testing stand, 3-station seat, 4-keyboard station, 5-X axle track, 6-Z
Axle track, 7-Y axle track, 8-pressure transducer, 41-end, 42-straight type section, 43-fixing slot, 44-
Fix bar.
Detailed description of the invention
In conjunction with the accompanying drawings, the present invention is further detailed explanation.These accompanying drawings are the schematic diagram of simplification,
The basic structure of the present invention is described the most in a schematic way, and therefore it only shows the composition relevant with the present invention.
Embodiment 1
Of the present invention a kind of multifunction push key test machine as shown in Figure 1, including frame 1, described frame 1
Employing metal material is made, and routine preferably employs aluminium alloy, but does not limits, and also can use other as required
Material, described frame 1 is provided with multiple station seat 3 being arranged side by side, and the number of described station seat 3 can root
Being configured according to needs, station seat described in the present embodiment 3 is preferable to provide 2, and one is detected,
One is loaded and unloaded, alternate cycles operation.One or more keyboard station 4 it is provided with on described station seat 3,
Being provided with the testing stand 2 that can move at X-axis, Y-axis and Z axis in described frame 1, described testing stand 2 is at X
Axle, Y-axis and Z axis move optional existing track move, screw mandrel, mechanical hand or suspension, with specific reference to
Needs select, and described testing stand 2 is provided with one or more pressure of corresponding described keyboard station 4
Sensor 8, arranges several described keyboard station 4, then be correspondingly arranged several pressure transducer 8, and pressure
Sensor 8 is positioned at the top of keyboard station 4, exports keyboard station 4 during 2 times pressures of described testing stand
The pressure data of upper keyboard, described pressure transducer 8 is connected to data collecting card, and described data collecting card is adopted
The data spread out of on collection pressure transducer 8, the most all data of described data collecting card are uploaded to upper place
Reason device, is carried out processing judgement by described Upper Processor.
In a preferred embodiment, as shown in Figures 2 and 3, the frame 1 of the plurality of station seat 3 side
On be provided with X-axis track 5, described X-axis track 5 is provided with moveable X-axis pedestal, described X-axis base
It is provided with Z axis track 6 on Zuo, described Z axis track 6 is movably provided with Z axis pedestal, described Z axis
It is provided with Y-axis track 7 on pedestal, described Y-axis track 7 movably arranges described testing stand 2, this reality
Executing example the most preferably uses X-axis track 5, Y-axis track 7 and Z axis track 6 to realize the three of testing stand 2
Dimension is mobile, because it is easy to control, and controls precisely, low cost, but is not limited to track, also can be according to need
Select other.
In a preferred embodiment, described X-axis pedestal, Z axis pedestal and testing stand 2 are driven by motor,
Described motor and pressure transducer 8 are connected with the PLC being arranged in described frame 1, described PLC
Controller controls testing stand 2 in three-dimensional movement.
Described keyboard station 4 is c-type station, and as shown in Figure 4, described c-type station includes two ends 41
With middle straight type section 42, said two end 41 is respectively arranged with in both sides fixing bar 44 and fixing slot
43, c-type station front and back is by mutually rocking before fixing bar 44 and fixing slot 43 and preventing, it is ensured that many
Keyboard on individual c-type station is located along the same line, and so can be carried out high efficiency detecting successively.
In a preferred embodiment, described frame 1 is additionally provided be connected with described Upper Processor aobvious
Showing device, for testing result being presented directly to user, improving efficiency.
In a preferred embodiment, described frame 1 is additionally provided with the control being connected with described Upper Processor
Keyboard processed, is user-friendly for execute-in-place.
In a preferred embodiment, described frame 1 is arranged with telescopic heel brace, described frame 1 time
It is additionally provided with multiple roller, uses when needs are mobile roller to move, when needs are fixing, by heel brace
Stretching is fixing downwards, then will search book frame 1 and fix, convenient and practical.
Embodiment 2
A kind of key-press test method applying above-described multifunction push key test machine, comprises the following steps:
(1) first the keyboard needing detection is loaded on the plurality of station seat 3, then by described testing stand
2 move into above a station seat 3 at X, Y, then by pressing under the motion of Z-direction,
Now the pressure transducer 8 on testing stand 2 can contact keyboard；
(2) described pressure transducer 8 output letter during lower crimping contacts button and climbs away button
Number give described data collecting card, described data collecting card carries out data acquisition and is then transferred to described upper process
Device；
(3) data that described Upper Processor will collect, according to the difference of stress in pressure down and uphill process
Generate pressure curve, and carry out data analysis, it is determined that the feel of button is the most qualified.
In a preferred embodiment, described step (3) specially pressure detecting step: described upper process
The data that device will collect, generate pressure curve according to the different of stress in pressure down and uphill process, are combining
Keyboard model sets and goes journey and the crest of backhaul and the parameter of trough, can store each in described Upper Processor
Plant the keyboard parameter of signal, when a kind of keyboard of needs detection, its parameter is recalled, therefore the present invention
Can be conveniently used for detecting various signal keyboard, it is not necessary to adjust targetedly, when gathering the pressure generated
When force curve reaches the parameter set, it is keyboard feel qualified, when not reaching the parameter of setting, is key
Dish feel is defective.
In a preferred embodiment, also include Function detection step: when described pressure transducer is pressed for 8 times,
Utilizing the button of the deadweight conducting keyboard of described pressure transducer 8, keyboard is energized detection when,
Judge whether keyboard turns on by controller, judge that the keypress function of keyboard is the most qualified.
In a preferred embodiment, the result of described pressure detecting step and Function detection step is combined,
Comprehensive descision keyboard whether conformance with standard, two Testing index all meet and are high-class product, one of which index
Time defective, being then substandard products, two indexs do not comply with, then be defect ware.
With the above-mentioned desirable embodiment according to the present invention for enlightenment, by above-mentioned description, related work
Personnel can carry out various change and amendment completely in the range of without departing from this invention technological thought.
The content that the technical scope of this invention is not limited in description, it is necessary to according to right
Determine its technical scope.
Claims (10)
1. a multifunction push key test machine, it is characterised in that include frame, described frame is provided with many
The individual station seat being arranged side by side, described station seat is provided with one or more keyboard station, in described frame
It is provided with the testing stand that can move at X-axis, Y-axis and Z axis, described testing stand is provided with corresponding described keyboard
One or more pressure transducers of station, described pressure transducer is connected to data collecting card, described data
Capture card connects Upper Processor.
2. multifunction push key test machine as claimed in claim 1, it is characterised in that the plurality of station seat
It is provided with X-axis track in the frame of side, described X-axis track is provided with moveable X-axis pedestal, institute
State and on X-axis pedestal, be provided with Z axis track, described Z axis track is movably provided with Z axis pedestal, institute
State and on Z axis pedestal, be provided with Y-axis track, described Y-axis track movably arranges described testing stand.
3. multifunction push key test machine as claimed in claim 1 or 2, it is characterised in that described X-axis base
Seat, Z axis pedestal and testing stand are driven by motor, described motor and pressure transducer be arranged on described frame
Interior PLC connects.
4. the multifunction push key test machine as described in any one of claim 1-3, it is characterised in that described key
Dish station is c-type station, and described c-type station includes two ends and middle straight type section, said two end
It is respectively arranged with fixing bar and fixing slot in both sides in portion.
5. the multifunction push key test machine as described in any one of claim 1-4, it is characterised in that described machine
The control keyboard or display being connected with described Upper Processor it is additionally provided with on frame.
6. the multifunction push key test machine as described in any one of claim 1-5, it is characterised in that described machine
Frame is arranged with telescopic heel brace, is additionally provided with multiple roller under described frame.
7. apply a key-press test method for multifunction push key test machine described in any one of claim 1-6,
It is characterized in that, comprise the following steps:
(1) first the keyboard needing detection is loaded on the plurality of station seat, then described testing stand is moved
Move on one of them station seat；
(2) described pressure transducer under press and rise during output signal to described data collecting card,
Described data collecting card carries out data acquisition and is then transferred to described Upper Processor；
(3) the data genaration pressure curve that described Upper Processor will collect, and carry out data analysis, sentence
The feel determining button is the most qualified.
8. key-press test method as claimed in claim 7, it is characterised in that described step (3) is concrete
For pressure detecting step: the data genaration pressure curve that described Upper Processor will collect, according to keyboard type
Journey and the crest of backhaul and the parameter of trough are gone in number setting, when gathering the ginseng that the pressure curve generated reaches to set
During number, it is keyboard feel qualified, when not reaching the parameter of setting, is keyboard feel defective.
9. key-press test method as claimed in claim 8, it is characterised in that also include Function detection step:
Under described pressure transducer during pressure, utilize the button of the deadweight conducting keyboard of described pressure transducer, sentence
The keypress function determining keyboard is the most qualified.
10. key-press test method as claimed in claim 9, it is characterised in that described pressure detecting is walked
Rapid and Function detection step result combines, comprehensive descision keyboard whether conformance with standard.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201610629009.8A CN106019140A (en) | 2016-08-03 | 2016-08-03 | Multifunctional key test machine and test method |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201610629009.8A CN106019140A (en) | 2016-08-03 | 2016-08-03 | Multifunctional key test machine and test method |
Publications (1)
| Publication Number | Publication Date |
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| CN106019140A true CN106019140A (en) | 2016-10-12 |
Family
ID=57134808
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201610629009.8A Pending CN106019140A (en) | 2016-08-03 | 2016-08-03 | Multifunctional key test machine and test method |
Country Status (1)
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| CN (1) | CN106019140A (en) |
Cited By (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106405404A (en) * | 2016-11-01 | 2017-02-15 | 昆山鸿志犀自动化机电设备有限公司 | Notebook computer keyboard hand feeling and function automatic test machine |
| CN110160756A (en) * | 2018-02-13 | 2019-08-23 | 技嘉科技股份有限公司 | Pressing piece, test device and test method |
| CN110416859A (en) * | 2019-08-07 | 2019-11-05 | Oppo（重庆）智能科技有限公司 | Kato liftout attachment and method |
| CN110927461A (en) * | 2019-12-10 | 2020-03-27 | 深圳市磐石测控仪器有限公司 | High-speed multichannel button elasticity impedance curve test system |
| CN111929049A (en) * | 2020-08-07 | 2020-11-13 | 常州机电职业技术学院 | Keyboard stability and life test equipment of computer processing production usefulness |
| CN112383659A (en) * | 2020-10-29 | 2021-02-19 | 北京中科泛华测控技术有限公司 | Test platform and test method |
Citations (11)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN200965502Y (en) * | 2005-12-22 | 2007-10-24 | 比亚迪精密制造有限公司 | A key tester |
| CN201251517Y (en) * | 2008-07-23 | 2009-06-03 | 毅嘉科技股份有限公司 | Key-press detecting device |
| CN201535712U (en) * | 2009-07-28 | 2010-07-28 | 东莞市华谊创鸿试验设备有限公司 | Full-automatic loading curve testing machine with buttons in axis X, axis Y and axis Z |
| CN201788120U (en) * | 2010-07-21 | 2011-04-06 | 东莞东聚电子电讯制品有限公司 | Key testing mechanism of computer keyboard |
| CN202066673U (en) * | 2011-04-02 | 2011-12-07 | 吴江市博众精工科技有限公司 | Cantilever mechanism used in key cap testing machine for laptop |
| US20130152711A1 (en) * | 2011-12-20 | 2013-06-20 | Hon Hai Precision Industry Co., Ltd. | Testing apparatus for input device |
| CN203338138U (en) * | 2013-05-16 | 2013-12-11 | 苏州日和科技有限公司 | Moving mechanism for measuring head of keyboard test machine |
| CN104101830A (en) * | 2013-04-15 | 2014-10-15 | 广达电脑股份有限公司 | Keyboard testing machine |
| CN204903716U (en) * | 2015-07-27 | 2015-12-23 | 昆山鸿志犀自动化机电设备有限公司 | Keyboard test machine of feeling |
| CN105424339A (en) * | 2015-11-09 | 2016-03-23 | 苏州辛格顿智能科技有限公司 | Key testing mechanism |
| CN205880157U (en) * | 2016-08-03 | 2017-01-11 | 苏州安木自动化设备有限公司 | Multifunction key test machine |
-
2016
- 2016-08-03 CN CN201610629009.8A patent/CN106019140A/en active Pending
Patent Citations (11)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN200965502Y (en) * | 2005-12-22 | 2007-10-24 | 比亚迪精密制造有限公司 | A key tester |
| CN201251517Y (en) * | 2008-07-23 | 2009-06-03 | 毅嘉科技股份有限公司 | Key-press detecting device |
| CN201535712U (en) * | 2009-07-28 | 2010-07-28 | 东莞市华谊创鸿试验设备有限公司 | Full-automatic loading curve testing machine with buttons in axis X, axis Y and axis Z |
| CN201788120U (en) * | 2010-07-21 | 2011-04-06 | 东莞东聚电子电讯制品有限公司 | Key testing mechanism of computer keyboard |
| CN202066673U (en) * | 2011-04-02 | 2011-12-07 | 吴江市博众精工科技有限公司 | Cantilever mechanism used in key cap testing machine for laptop |
| US20130152711A1 (en) * | 2011-12-20 | 2013-06-20 | Hon Hai Precision Industry Co., Ltd. | Testing apparatus for input device |
| CN104101830A (en) * | 2013-04-15 | 2014-10-15 | 广达电脑股份有限公司 | Keyboard testing machine |
| CN203338138U (en) * | 2013-05-16 | 2013-12-11 | 苏州日和科技有限公司 | Moving mechanism for measuring head of keyboard test machine |
| CN204903716U (en) * | 2015-07-27 | 2015-12-23 | 昆山鸿志犀自动化机电设备有限公司 | Keyboard test machine of feeling |
| CN105424339A (en) * | 2015-11-09 | 2016-03-23 | 苏州辛格顿智能科技有限公司 | Key testing mechanism |
| CN205880157U (en) * | 2016-08-03 | 2017-01-11 | 苏州安木自动化设备有限公司 | Multifunction key test machine |
Non-Patent Citations (1)
| Title |
|---|
| 刘振等: "《产品结构设计及应用实例》", 31 May 2016 * |
Cited By (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106405404A (en) * | 2016-11-01 | 2017-02-15 | 昆山鸿志犀自动化机电设备有限公司 | Notebook computer keyboard hand feeling and function automatic test machine |
| CN106405404B (en) * | 2016-11-01 | 2024-02-02 | 昆山鸿志犀自动化机电设备有限公司 | Automatic hand feeling and function testing machine for notebook keyboard |
| CN110160756A (en) * | 2018-02-13 | 2019-08-23 | 技嘉科技股份有限公司 | Pressing piece, test device and test method |
| CN110416859A (en) * | 2019-08-07 | 2019-11-05 | Oppo（重庆）智能科技有限公司 | Kato liftout attachment and method |
| CN110927461A (en) * | 2019-12-10 | 2020-03-27 | 深圳市磐石测控仪器有限公司 | High-speed multichannel button elasticity impedance curve test system |
| CN111929049A (en) * | 2020-08-07 | 2020-11-13 | 常州机电职业技术学院 | Keyboard stability and life test equipment of computer processing production usefulness |
| CN112383659A (en) * | 2020-10-29 | 2021-02-19 | 北京中科泛华测控技术有限公司 | Test platform and test method |
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Application publication date: 20161012 |