CN105258931A - Method for detecting undesirable elastic force or drawing force of keycap of keyboard - Google Patents
Method for detecting undesirable elastic force or drawing force of keycap of keyboard Download PDFInfo
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- CN105258931A CN105258931A CN201510724327.8A CN201510724327A CN105258931A CN 105258931 A CN105258931 A CN 105258931A CN 201510724327 A CN201510724327 A CN 201510724327A CN 105258931 A CN105258931 A CN 105258931A
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Abstract
The present invention discloses a method for detecting the undesirable elastic force or drawing force of a keycap of a keyboard, including the steps as follows: the keyboard is pressed and held so that the keyboard is fixed; a weighing sensor with a hook on the bottom individually hangs one keycap of the keyboard to be detected for performing detection contact, the hook of the weighing sensor directly acts on any one lateral border of the keycap; a driver drives the weighing sensor to move upwards for setting a route, and the weighing sensor feeds back the modulus variation of the hook in the real time to a collecting and processing controller for collecting the real-time drawing force of the keycap; the collecting and processing controller compares the collected the real-time drawing force of the keycap with the normal drawing force and performs the judgment, and the drawing force of the keycap is judged as the undesirable drawing force when the real-time drawing force of the keycap is higher than the upper limit of the normal drawing force or is lower than the lower limit of the normal drawing force. The detection method is convenient to operate, is high in automation degree, and is suitable for the keyboard variability. The detection method has the advantages of high detection rate, low misjudgment rate, no damage to good product, low detection cost, safeness, reliability and the like.
Description
Technical field
The present invention relates to a kind of detection method, particularly relate to and a kind ofly detect keyboard cover elastic force or the bad detection method of pulling capacity.
Background technology
Keyboard is generally assembled by aluminium base, wiring board, scissors bracing frame and keycap, known keyboard cover elastic force or the bad main cause of pulling capacity of causing has at present: 1, deficient purchase, and such as, in aluminium base snap fit distortion, scissors bracing frame, axle fracture or inside and outside scissors are equipped with that button cap structure place lacks material and avalanche, corner and the inside and outside scissors of keycap be equipped with and locate (i.e. written water droplet hole by name and sliding groove structure) and exist bad; 2, assemble bad, such as, in the process of assembling, damaged keyboard or button cap structure because plant equipment that is artificial or assembling is bad.
Above 2 being caused keyboard cover elastic force or pulling capacity deficiency or not having main cause springy, can have a strong impact on the serviceable life of keyboard and the mechanical feel of use by directly causing keyboard after making finished product.So keycap is installed to after on keyboard, in order to ensure the reliability of follow-up use, the pulling capacity after to keyboard cover assembling is needed to test.
In prior art, the general hand that adopts scratches the mode of keyboard cover to judge that can pulling capacity meet request for utilization, and the artificial subjectivity of this detection mode is strong, easily cause erroneous judgement, and need to drop into a large amount of manpowers, cost is high but efficiency is low, obviously cannot meet the requirement that modern industry is produced.
At present, general use plant equipment detects automatically, such as: use brush key machine, square on the keyboard cover assembled, to drop to above keycap with one block of flexible silica gel and interfere contact, however this detection method to there is recall rate very low and can cause the deficiencies such as damage to non-defective unit; Or use top key machine, square under the keyboard cover assembled, corresponding probe is loaded onto immediately below each key, the elastic force of probe is controlled by the compression travel amount of probe, thus bad keycap is ejected keycap one-piece construction, because whole bad judgement completes by artificial visually examine and needs keycap clearly to depart from, due to the polytrope of keyboard and the fatigue tolerance of probe limited, therefore recall rate is also very low and False Rate is also very high; Again or use and inhale key machine, contact in key cap surface by enough vacuum with sucker above each keycap, thus generation suction, up drawing keycap, power due to sucker is vertically upward, and the dysplasia keycap of single pin, and its vertical strain power is normal so power of test also can heavy discount greatly, and the polytrope diversity of keyboard, causes the replacing maintenance cost of equipment very high.
Summary of the invention
Fundamental purpose of the present invention is, overcome deficiency of the prior art, a kind of new detection keyboard cover elastic force or the bad detection method of pulling capacity are provided, automaticity is high, recall rate is high, False Rate is low, can not cause damage to non-defective unit, can adapt to the polytrope of keyboard, and testing cost is low, safe and reliable, practical.
In order to achieve the above object, the technical solution adopted in the present invention is:
Detect keyboard cover elastic force or the bad detection method of pulling capacity, comprise the following steps:
1) to keyboard press mechanism pressure holding to be detected, make keyboard firmly motionless;
2) adopt the LOAD CELLS keycap tangled separately in keyboard to be detected of bottom belt hook to carry out detection contact, the hook of LOAD CELLS directly acts on the bottom surface of any lateral edges of keycap;
3) use driver drives LOAD CELLS mobile setting stroke vertically upward, carried out the collection of the real-time pulling capacity of keycap by the modulus change of LOAD CELLS Real-time Feedback hook to acquisition process controller;
4) prestore the normal pulling capacity database of keycap in acquisition process controller, by acquisition process controller, pulling capacity normal in real-time for the keycap of collection pulling capacity and database is compared and judges;
If within the upper limit that the real-time pulling capacity of keycap is in normal pulling capacity and lower range, judge that keycap pulling capacity is normal, then judge that keycap is as non-defective unit;
If the real-time pulling capacity of keycap exceeds the upper limit of normal pulling capacity or the lower limit lower than normal pulling capacity, then judge that keycap pulling capacity is bad, judges that keycap is as defective products then.
The present invention is set to further: described step 2) in LOAD CELLS hook or act on the bottom surface of the angle of intersection of arbitrary neighborhood lateral edges of keycap.
The present invention is set to further: described step 2) in LOAD CELLS the direct hooking of hook horizontal distribution in keycap two horizontal edges in any horizontal edge bottom surface, if keycap lateral side length is L, the hooking point of LOAD CELLS and the distance of horizontal edge central point are X, 0<X<0.5L.
The present invention is set to further: the hooking point of described LOAD CELLS and the distance of horizontal edge central point are X=0.4L.
The present invention is set to further: described step 2) in LOAD CELLS comprise and be set up in parallel in a row several, several LOAD CELLS are corresponding in turn to row's keycap of horizontal distribution in keyboard, and each LOAD CELLS all separately corresponding keycap of hooking detects.
The present invention is set to further: described step 3) also comprises carries out data storage by real-time for the keycap of collection pulling capacity.
The present invention is set to further: the storage mode that described data store is according to the coordinate position of keycap place keyboard and keycap real-time pulling capacity one_to_one corresponding mode.
The present invention is set to further: described step 4) also comprises carries out data record to the result of determination of the real-time pulling capacity of keycap.
The present invention is set to further: the recording mode of described data record is according to the coordinate position of keycap place keyboard and result of determination one_to_one corresponding mode.
The present invention is set to further: described step 4) also comprises and will be judged to be that the bad judged result of keycap pulling capacity carries out bad position and bad value simultaneous display.
Compared with prior art, the beneficial effect that the present invention has is:
Each keycap edge of keyboard is utilized to have the upwards pulling capacity phenomenon of its fixing corresponding stroke, the keycap tangled separately in keyboard to be detected by the LOAD CELLS of bottom belt hook carries out detection contact, through acquisition process controller, real-time for the keycap of collection pulling capacity and normal pulling capacity compared and judge, thus detecting defective products; Detection method is easy and simple to handle, automaticity is high, can adapt to the polytrope of keyboard, has the plurality of advantages such as recall rate is high, False Rate is low, do not damage non-defective unit, testing cost is low, safe and reliable.
Foregoing is only the general introduction of technical solution of the present invention, and in order to clearer understanding technological means of the present invention, below in conjunction with accompanying drawing, the invention will be further described.
Accompanying drawing explanation
Fig. 1 is the distribution plan of the hooking point of LOAD CELLS in the embodiment of the present invention.
Embodiment
Below in conjunction with Figure of description, the present invention is further illustrated.
The invention provides and a kind ofly detect keyboard cover elastic force or the bad detection method of pulling capacity, it utilizes each keycap edge of keyboard to have this principle of upwards pulling capacity of its fixing corresponding stroke, specifically comprises the following steps:
1) to keyboard press mechanism pressure holding to be detected, make keyboard firmly motionless.
2) adopt the LOAD CELLS keycap tangled separately in keyboard to be detected of bottom belt hook to carry out detections to contact, the hook of LOAD CELLS directly acts on any lateral edges of keycap or acts on the angle of intersection of arbitrary neighborhood lateral edges of keycap.Several LOAD CELLS of preferred employing are set up in parallel in a row, and detect any row's keycap of horizontal distribution in keyboard, each LOAD CELLS is the corresponding keycap of hooking all separately, realizes detection according to the order of sequence by rows simultaneously.
As shown in Figure 1, the square box 1 in figure represents a keycap, and the four edges of square box 1 is the limit, lateral edges bottom surface of keycap, comprises the horizontal edge 11 two being in horizontal distribution and the vertical edge 12 two being in vertical distribution; The hook of LOAD CELLS is preferably any one in hooking horizontal edge 11 two, and as namely circle in Fig. 12 represents the hooking point of LOAD CELLS, in figure, hooking point is distributed with 4, selects any one to carry out hooking when detecting.If keycap horizontal edge 11 length in Fig. 1 is L, then the hooking point of LOAD CELLS and the distance of horizontal edge central point 10 are X, be preferably 0<X<0.5L, namely be preferred hooking point with horizontal edge central point to the place of horizontal edge end points, in figure, the hooking point of X=0.4L is distributed in each one totally two of horizontal edge central point 10 both sides, and one of them can be selected to carry out hooking.If adopt LOAD CELLS in a row in a row to detect, the hooking point that each keycap is corresponding should be selected unanimously, is convenient to LOAD CELLS and in a row installs and regulate with spacing; If namely the hooking point selection of a keycap is as being positioned at this hooking point on the left of horizontal edge central point 10 in Fig. 1, then other keycaps are also preferably all positioned at the hooking point of relative position on the left of horizontal edge central point 10.
3) use the driver drives LOAD CELLS of servomotor and so on mobile setting stroke vertically upward, carried out the collection of the real-time pulling capacity of keycap by the modulus change of LOAD CELLS Real-time Feedback hook to acquisition process controller; And real-time for the keycap of collection pulling capacity is carried out data storage, storage mode is according to the coordinate position of keycap place keyboard and keycap real-time pulling capacity one_to_one corresponding mode.
4) prestore the normal pulling capacity database of keycap in acquisition process controller, by acquisition process controller, pulling capacity normal in real-time for the keycap of collection pulling capacity and database is compared and judges; If within the upper limit that the real-time pulling capacity of keycap is in normal pulling capacity and lower range, judge that keycap pulling capacity is normal, then judge that keycap is as non-defective unit; If the real-time pulling capacity of keycap exceeds the upper limit of normal pulling capacity or the lower limit lower than normal pulling capacity, then judge that keycap pulling capacity is bad, judges that keycap is as defective products then.
Also can carry out data record to the result of determination of the real-time pulling capacity of keycap, recording mode is according to the coordinate position of keycap place keyboard and result of determination one_to_one corresponding mode; Also can will be judged to be that the bad judged result of keycap pulling capacity carries out bad position and bad value simultaneous display.
Such as: the upper left corner of normal keyboard cover " A " key is to the 3mm place of nearest two adjacent edges, and its normal pulling capacity is f, and its scope is 280g < f < 320g; But after the damage of keycap " A " key, its pulling capacity just, not between normal upper and lower limit, by gathering its pulling capacity size and compare, can directly judge that it is bad then.Because in detection, the sensitivity of LOAD CELLS used is very high, so False Rate is very low; And testing process is judged by computer program completely, therefore can avoid artificially judging by accident or failing to judge.In testing process, the actual use range of LOAD CELLS accounts for very little ratio in its total range, so LOAD CELLS is not almost damaged in actual test process, therefore its serviceable life is very long, significantly can reduce the replacement cost of detecting sensor equipment.
More than show and describe ultimate principle of the present invention, principal character and advantage.The technician of the industry should understand; the present invention is not restricted to the described embodiments; what describe in above-described embodiment and instructions just illustrates principle of the present invention; without departing from the spirit and scope of the present invention; the present invention also has various changes and modifications, and these changes and improvements all fall in the claimed scope of the invention.Application claims protection domain is defined by appending claims and equivalent thereof.
Claims (10)
1. detect keyboard cover elastic force or the bad detection method of pulling capacity, it is characterized in that, comprise the following steps:
1) to keyboard press mechanism pressure holding to be detected, make keyboard firmly motionless;
2) adopt the LOAD CELLS keycap tangled separately in keyboard to be detected of bottom belt hook to carry out detection contact, the hook of LOAD CELLS directly acts on the bottom surface of any lateral edges of keycap;
3) use driver drives LOAD CELLS mobile setting stroke vertically upward, carried out the collection of the real-time pulling capacity of keycap by the modulus change of LOAD CELLS Real-time Feedback hook to acquisition process controller;
4) prestore the normal pulling capacity database of keycap in acquisition process controller, by acquisition process controller, pulling capacity normal in real-time for the keycap of collection pulling capacity and database is compared and judges;
If within the upper limit that the real-time pulling capacity of keycap is in normal pulling capacity and lower range, judge that keycap pulling capacity is normal, then judge that keycap is as non-defective unit;
If the real-time pulling capacity of keycap exceeds the upper limit of normal pulling capacity or the lower limit lower than normal pulling capacity, then judge that keycap pulling capacity is bad, judges that keycap is as defective products then.
2. according to claim 1ly a kind ofly detect keyboard cover elastic force or the bad detection method of pulling capacity, it is characterized in that: described step 2) in LOAD CELLS hook or act on the bottom surface of the angle of intersection of arbitrary neighborhood lateral edges of keycap.
3. according to claim 1ly a kind ofly detect keyboard cover elastic force or the bad detection method of pulling capacity, it is characterized in that: described step 2) in LOAD CELLS the direct hooking of hook horizontal distribution in keycap two horizontal edges in any horizontal edge bottom surface, if keycap lateral side length is L, the hooking point of LOAD CELLS and the distance of horizontal edge central point are X, 0<X<0.5L.
4. according to claim 3ly a kind ofly detect keyboard cover elastic force or the bad detection method of pulling capacity, it is characterized in that: the hooking point of described LOAD CELLS and the distance of horizontal edge central point are X=0.4L.
5. according to claim 1ly a kind ofly detect keyboard cover elastic force or the bad detection method of pulling capacity, it is characterized in that: described step 2) in LOAD CELLS comprise and be set up in parallel in a row several, several LOAD CELLS are corresponding in turn to row's keycap of horizontal distribution in keyboard, and each LOAD CELLS all separately corresponding keycap of hooking detects.
6. according to claim 1ly a kind ofly detect keyboard cover elastic force or the bad detection method of pulling capacity, it is characterized in that: described step 3) also comprises carries out data storage by real-time for the keycap of collection pulling capacity.
7. according to claim 6ly a kind ofly detect keyboard cover elastic force or the bad detection method of pulling capacity, it is characterized in that: the storage mode that described data store is according to the coordinate position of keycap place keyboard and keycap real-time pulling capacity one_to_one corresponding mode.
8. according to claim 1ly a kind ofly detect keyboard cover elastic force or the bad detection method of pulling capacity, it is characterized in that: described step 4) also comprises carries out data record to the result of determination of the real-time pulling capacity of keycap.
9. according to claim 8ly a kind ofly detect keyboard cover elastic force or the bad detection method of pulling capacity, it is characterized in that: the recording mode of described data record is according to the coordinate position of keycap place keyboard and result of determination one_to_one corresponding mode.
10. according to claim 9ly a kind ofly detect keyboard cover elastic force or the bad detection method of pulling capacity, it is characterized in that: described step 4) also comprises and will be judged to be that the bad judged result of keycap pulling capacity carries out bad position and bad value simultaneous display.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201510724327.8A CN105258931A (en) | 2015-10-30 | 2015-10-30 | Method for detecting undesirable elastic force or drawing force of keycap of keyboard |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201510724327.8A CN105258931A (en) | 2015-10-30 | 2015-10-30 | Method for detecting undesirable elastic force or drawing force of keycap of keyboard |
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| CN105258931A true CN105258931A (en) | 2016-01-20 |
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| Application Number | Title | Priority Date | Filing Date |
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| CN201510724327.8A Pending CN105258931A (en) | 2015-10-30 | 2015-10-30 | Method for detecting undesirable elastic force or drawing force of keycap of keyboard |
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Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109443740A (en) * | 2018-12-25 | 2019-03-08 | 昆山鸿志犀自动化机电设备有限公司 | A kind of high full-automatic keycap pull-out test device of detection efficiency and test method |
| 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 |
| CN110514429A (en) * | 2019-09-24 | 2019-11-29 | 东莞市凯锐电子自动化科技有限公司 | A kind of keyboard pulling capacity detection machine |
| CN112067267A (en) * | 2020-08-28 | 2020-12-11 | 苏州富强科技有限公司 | Method and system for detecting drawing force of key, storage medium and device |
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| JPH04145342A (en) * | 1990-10-08 | 1992-05-19 | Fujitsu Ltd | Method and apparatus for tapping key with high speed |
| CN101634610A (en) * | 2008-07-23 | 2010-01-27 | 毅嘉科技股份有限公司 | Key detecting method |
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Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| 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 |
| CN109443740A (en) * | 2018-12-25 | 2019-03-08 | 昆山鸿志犀自动化机电设备有限公司 | A kind of high full-automatic keycap pull-out test device of detection efficiency and test method |
| CN109443740B (en) * | 2018-12-25 | 2024-02-20 | 昆山鸿志犀自动化机电设备有限公司 | Full-automatic key cap drawing test device and method with high detection efficiency |
| CN110514429A (en) * | 2019-09-24 | 2019-11-29 | 东莞市凯锐电子自动化科技有限公司 | A kind of keyboard pulling capacity detection machine |
| CN112067267A (en) * | 2020-08-28 | 2020-12-11 | 苏州富强科技有限公司 | Method and system for detecting drawing force of key, storage medium and device |
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