CN108398258B - Piano key switch life-span testing arrangement - Google Patents
Piano key switch life-span testing arrangement Download PDFInfo
- Publication number
- CN108398258B CN108398258B CN201810457949.2A CN201810457949A CN108398258B CN 108398258 B CN108398258 B CN 108398258B CN 201810457949 A CN201810457949 A CN 201810457949A CN 108398258 B CN108398258 B CN 108398258B
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- sliding
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- clamp
- key
- testing
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- 238000012360 testing method Methods 0.000 title claims abstract description 102
- 238000010438 heat treatment Methods 0.000 claims abstract description 28
- 230000005540 biological transmission Effects 0.000 claims description 6
- 238000010168 coupling process Methods 0.000 claims description 6
- 238000005859 coupling reaction Methods 0.000 claims description 6
- 230000008878 coupling Effects 0.000 claims description 4
- 238000005096 rolling process Methods 0.000 claims description 2
- 238000010586 diagram Methods 0.000 description 2
- 230000009286 beneficial effect Effects 0.000 description 1
- 230000001276 controlling effect Effects 0.000 description 1
- 230000007547 defect Effects 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 238000000034 method Methods 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 238000004321 preservation Methods 0.000 description 1
- 230000001105 regulatory effect Effects 0.000 description 1
Classifications
-
- 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
-
- G—PHYSICS
- G05—CONTROLLING; REGULATING
- G05D—SYSTEMS FOR CONTROLLING OR REGULATING NON-ELECTRIC VARIABLES
- G05D23/00—Control of temperature
- G05D23/19—Control of temperature characterised by the use of electric means
- G05D23/1927—Control of temperature characterised by the use of electric means using a plurality of sensors
- G05D23/1928—Control of temperature characterised by the use of electric means using a plurality of sensors sensing the temperature of one space
Abstract
The invention relates to a life testing device for a key switch, which comprises a rack, a testing box body arranged at the lower end of the rack, a pressing mechanism, a key clamp and a sliding mechanism, wherein a heating mechanism is arranged on the rack above the testing box body, and part of the pressing mechanism stretches into the testing box body. The invention has simple structure, reasonable design and strong practicability, realizes the up-and-down reciprocating motion of the pressing device through the eccentric wheel, better simulates the manual pressing of the key through the finger-shaped pressing device, further improves the authenticity of the test, realizes the switching of different key switches through the sliding mechanism, and heats the test box body through the heating pipe, thereby ensuring the test of the key switches under the corresponding constant temperature condition.
Description
Technical Field
The invention relates to the technical field of switch service life testing devices, in particular to a key switch service life testing device.
Background
The key is one of important elements of a piano, the service life of the key directly influences the service life of the piano, the existing key service life test mode can be divided into a screw rod reciprocating pressing mode, a cam-spring pressing mode and the like according to the working principle, the traditional service life tester only carries out mechanical repeated pressing and can not test a key switch well, the test result is unreliable, in addition, the damage modes of the key switch are not necessarily the same under different temperature environments because the service life of the key switch has a great relation with the environment temperature, but the existing key service life test can not meet the test under different temperatures, the test result of the key switch is inaccurate,
disclosure of Invention
Aiming at the defects of the prior art, the invention provides a key switch service life testing device capable of accurately controlling the testing temperature.
The technical scheme of the invention is as follows: the utility model provides a key switch life-span testing arrangement, includes the frame and sets up the test box in the frame lower extreme, the device still include pressing mechanism, key anchor clamps, slide mechanism, heating mechanism, part pressing mechanism set up in the frame of test box top, in addition part pressing mechanism stretch into the test box in, key anchor clamps, slide mechanism, heating mechanism all set up in the test box, key anchor clamps be used for the centre gripping to wait to test the key switch, this key anchor clamps set up on slide mechanism to drive the key anchor clamps horizontal slip through slide mechanism, and then realize the switching between the key switch that awaits measuring of difference on the key anchor clamps, heating mechanism be used for the test box heating, thereby guarantee the test temperature in the test box, thereby guarantee the test temperature of waiting to test the key switch, the heating mechanism test on the inside wall of test box.
The pressing mechanism comprises a stepping motor, an eccentric wheel main shaft, a pressing plate, a telescopic rod, a connecting plate and a pressing device, wherein the stepping motor is arranged on a frame above a testing box body through a stepping motor mounting seat, the stepping motor is in transmission connection with one end of the eccentric wheel main shaft through a shaft coupler a, the other end of the eccentric wheel main shaft is arranged on the frame through a bearing seat, the eccentric wheel main shaft is provided with the eccentric wheel, the lower end of the eccentric wheel is provided with the pressing plate which is used for being matched with the eccentric wheel, the lower end of the pressing plate is provided with the telescopic rod, the eccentric wheel is in contact with the pressing plate, the pressing plate is also in spring connection with the telescopic rod in a sleeved mode, the telescopic rod extends downwards into the testing box body, the lower end of the telescopic rod is provided with a connecting plate, and the lower end of the connecting plate is provided with a finger-shaped pressing device so as to better simulate a key pressing switch, further improve the authenticity of testing.
Further, slide mechanism include slide motor, slide rail a, slide rail b, lead screw, slide motor set up in the frame through the slide motor mount pad, the one end of lead screw passes through shaft coupling b and slide motor transmission and is connected, the other end passes the test box and is connected with the lead screw seat that sets up in the test box, still be provided with slide rail a and slide rail b in the test box of lead screw both sides, the slide pass through a plurality of slides and set up on slide rail a and slide rail b, the slide still set up on the lead screw through the antifriction shaft seat, the slide on be provided with the key anchor clamps, the key anchor clamps on place a plurality of key switches that wait to test, through slide motor drive lead screw rotation to control slide on slide rail a and slide rail b, thereby realize the switching of different key switches on the key anchor clamps.
Further, the key anchor clamps include U type splint, left clamp splice, right clamp splice, anchor clamps body, U type splint on be provided with the anchor clamps body, the left side of anchor clamps body still be provided with left clamp splice, the right side still is provided with right clamp splice, the anchor clamps body on be provided with a plurality of locating pins that are used for placing key switch.
Further, the heating device comprises a plurality of heating pipes arranged on the inner side wall of the test box body.
Further, the device also includes the PLC controller, the controller be connected with step motor, sliding motor through driver a and driver b respectively, the PLC controller still be connected with the heating pipe through the temperature controller to control the heating pipe through the temperature controller, and then adjust the temperature in the test box.
Further, a plurality of temperature sensors are further arranged on the inner side wall of the testing box body, the temperature sensors are connected with the PLC, the temperature in the testing box body is detected in real time through the temperature sensors and transmitted to the PLC, and accordingly the PLC controls the heating pipe through the temperature controller.
Further, the telescopic rod is further provided with a locking screw, and the extension length of the telescopic rod is adjusted through the locking screw.
Further, the test box body is also provided with an observation window and a touch screen, and the touch screen is connected with the PLC.
Further, the inner side wall of the test box body is also provided with a heat preservation layer.
Further, a rubber sleeve is sleeved on the pressing device.
The beneficial effects of the invention are as follows: simple structure, reasonable in design, the practicality is strong, realize the up-and-down reciprocating motion of pressing device through the eccentric wheel, and press the key through the better analog people's hand of pressing device of finger, further improve the authenticity of test, and realize the switching of different key switches through slide mechanism, and realize the heating for the test box through the heating pipe, thereby guarantee that the key switch tests under corresponding invariable temperature condition, thereby avoid because the inaccurate problem of test that the temperature factor leads to, during the test, the device replaces the rotatory knob switch of staff positive and negative direction repeatedly, workman's intensity of labour has been reduced greatly, moreover the speed and the time interval of test all can keep highly uniform, the test effect is good, the test efficiency is high.
Drawings
FIG. 1 is a schematic diagram of a first embodiment of the present invention;
FIG. 2 is a schematic diagram of a second embodiment of the present invention;
FIG. 3 is a schematic view of the pressing mechanism of the present invention;
FIG. 4 is a schematic view of a sliding mechanism according to the present invention;
fig. 5 is a schematic structural view of the key holder of the present invention;
in the figure, 1-rack, 2-test box, 3-pressing mechanism, 4-sliding mechanism, 5-key clamp, 6-key switch, 30-stepper motor, 31-eccentric spindle, 32-eccentric, 33-pressing plate, 34-telescopic rod, 35-connecting plate, 36-presser, 37-slide bar a, 38-slide bar b, 40-slide plate, 41-sliding motor, 42-screw rod, 43-slide rail a, 44-slide rail b, 45-slide seat, 46-screw rod seat, 47-coupling b, 48-sliding motor mounting seat, 51-U-shaped clamping plate, 52-clamp body, 53-left clamping block, 54-right clamping block, 55-locating pin, 301-stepper motor mounting seat, 310-coupling a, 311-bearing seat, 370-sliding shaft seat a, 380-sliding shaft seat b.
Detailed Description
The following is a further description of embodiments of the invention, taken in conjunction with the accompanying drawings:
as shown in fig. 1 and 2, a life test device for a key switch includes a frame 1, and a test box 2 disposed at the lower end of the frame 1, the device further includes a pressing mechanism 3, a key clamp 5, a sliding mechanism 4, and a heating mechanism, part of the pressing mechanism 3 is disposed on the frame 1 above the test box 2, and the other part of the pressing mechanism 3 extends into the test box 2, the key clamp 5 and the sliding mechanism 4 are both disposed in the test box 2, the key clamp 5 is used for placing the key switch 6 to be tested, and the key clamp 5 is disposed on the sliding mechanism 4, so that the key clamp 5 is driven to slide horizontally by the sliding mechanism 4, so as to realize switching between different key switches 6 to be tested on the key clamp 5, and ensure the test temperature in the test box 2 by the heating mechanism, so as to ensure the test temperature of the key switch 6 to be tested.
As shown in fig. 3, the pressing mechanism comprises a stepping motor 30, an eccentric wheel 32, an eccentric wheel main shaft 31, a pressing plate 33, a telescopic rod 34, a connecting plate 35 and a pressing device 36, wherein the stepping motor 30 is arranged on the frame 1 above the testing box body 2 through a stepping motor mounting seat 301, the stepping motor 30 is in transmission connection with one end of the eccentric wheel main shaft 31 through a coupling a310, the other end of the eccentric wheel main shaft 31 is arranged on the frame 1 through a bearing seat 311, the eccentric wheel main shaft 31 is provided with the eccentric wheel 32, the lower end of the eccentric wheel 32 is provided with a pressing plate 33 matched with the eccentric wheel 32, the lower end of the pressing plate 33 is provided with a telescopic rod 34, in order to ensure that the eccentric wheel 32 contacts with the pressing plate 33, the pressing plate 33 is also connected with a spring sleeved on the telescopic rod 34, the telescopic rod 34 extends downwards into the testing box body 2, the telescopic rod 34 is connected with the test box body 2 through a rod sleeve so as to better seal the test box body 2, a connecting plate 35 is arranged at the lower end of the telescopic rod 34, a finger-shaped pressing device 36 is arranged at the lower end of the connecting plate 35 so as to better simulate a human hand to press the key switch 6, the test authenticity is further improved, in addition, in order to ensure that the connecting plate 35 moves in the vertical direction, the connecting plate 35 is respectively connected with a sliding rod a37 and a sliding rod b38 arranged in the test box body 2 through a sliding shaft seat a370 and a sliding shaft seat b380 so as to ensure that the telescopic rod 34 moves back and forth in the vertical direction, a stepping motor 30 drives a deflection wheel spindle 31 to rotate so as to drive an eccentric wheel on the eccentric wheel spindle 31 to rotate 32, and when the eccentric wheel spindle rotates, different positions of the eccentric wheel 32 are contacted with a pressing plate 33 so as to drive the pressing plate 33 to reciprocate up and down, and further drives the telescopic rod 34 to drive the presser 36 on the connecting plate 35 to reciprocate up and down.
Further, as shown in fig. 4, the sliding mechanism 4 includes a sliding motor 41, a sliding plate 40, a sliding rail a43, a sliding rail b44, and a screw rod 42, the sliding motor 41 is disposed on the frame 1 through a sliding motor mounting seat 48, one end of the screw rod 42 is in transmission connection with the sliding motor 41 through a coupling b47, the other end of the screw rod 42 passes through the testing box 2 and is connected with a screw rod seat 46 disposed in the testing box 2, a sliding rail a43 and a sliding rail b44 are further disposed in the testing box 2 on two sides of the screw rod 42, the sliding plate 40 is disposed on the sliding rail a43 and the sliding rail b44 through a plurality of sliding seats 45, the sliding plate 40 is disposed on the screw rod 42 through a rolling shaft seat, a key clamp 5 is disposed on the sliding plate 40, a plurality of key switches 6 to be tested are disposed on the key clamp 5, and the sliding motor 41 drives the screw rod 42 to rotate, so that the sliding plate 40 is controlled to slide on the sliding rail a43 and the sliding rail b44, and switching of different key switches 6 on the key clamp 5 is realized.
Further, as shown in fig. 5, the key clamp 5 includes a U-shaped clamping plate 51, a left clamping block 53, a right clamping block 54, and a clamp body 52, the U-shaped clamping plate 51 is provided with the clamp body 52, the left side of the clamp body 52 is further provided with the left clamping block 53, the right side is further provided with the right clamping block 54, the clamp body 52 is clamped by the left clamping block 53 and the right clamping block 54, and the clamp body 52 is provided with a plurality of positioning pins 55 for placing the key switch 6.
Further, the heating device comprises a plurality of heating pipes arranged on the inner side wall of the test box body 2.
Further, the device also comprises a PLC controller, the controller is connected with the stepping motor 30 and the sliding motor 41 through the driver a and the driver b respectively, and the PLC controller is also connected with the heating pipe through a temperature controller, so that the heating pipe is controlled through the temperature controller, and the temperature in the test box body 2 is regulated.
Further, a plurality of temperature sensors are further arranged on the inner side wall of the test box body 2, the temperature sensors are connected with the PLC, the temperature in the test box body 2 is detected in real time through the temperature sensors and is transmitted to the PLC, and accordingly the PLC controls the heating pipe through the temperature controller.
Further, a locking screw is further provided on the telescopic rod 34, and the extension length of the telescopic rod 34 is adjusted by the locking screw.
Further, the test box body 2 on still be provided with observation window and touch-sensitive screen, the touch-sensitive screen be connected with the PLC controller, be convenient for observe the test condition in the test box body through the observation window to control the test process through the touch-sensitive screen.
Further, an insulating layer is further arranged on the inner side wall of the test box body 2.
Further, a rubber sleeve is sleeved on the presser 36.
The foregoing embodiments and description have been provided merely to illustrate the principles and best modes of carrying out the invention, and various changes and modifications can be made therein without departing from the spirit and scope of the invention as defined in the appended claims.
Claims (4)
1. The utility model provides a key switch life-span testing arrangement, includes the frame, and sets up the test box at the frame lower extreme, its characterized in that: the testing device also comprises a pressing mechanism, a key clamp and a sliding mechanism, wherein a part of the heating mechanism is arranged on the frame above the testing box body, the other part of the pressing mechanism stretches into the testing box body, the key clamp and the sliding mechanism are both arranged in the testing box body, the key clamp is used for clamping a key switch to be tested, the key clamp is arranged on the sliding mechanism, the heating mechanism is used for heating the testing box body, and the heating mechanism is arranged on the inner side wall of the testing box body;
the pressing mechanism comprises a stepping motor, an eccentric wheel main shaft, a pressing plate, a telescopic rod, a connecting plate and a pressing device, wherein the stepping motor is arranged on a frame above a testing box body through a stepping motor mounting seat, the stepping motor is in transmission connection with one end of the eccentric wheel main shaft through a shaft coupling a, the other end of the eccentric wheel main shaft is arranged on the frame through a bearing seat, the eccentric wheel main shaft is provided with the eccentric wheel, the lower end of the eccentric wheel is provided with the pressing plate matched with the eccentric wheel, the lower end of the pressing plate is provided with the telescopic rod, the pressing plate is also connected with a spring sleeved on the telescopic rod, the lower end of the telescopic rod downwards extends into the testing box body and is connected with the connecting plate arranged in the testing box body, the lower end of the connecting plate is provided with a finger-shaped pressing device, and the left end and the right end of the connecting plate are respectively in sliding connection with a sliding rod and a sliding rod b arranged in the testing box body through a sliding shaft seat a and a sliding shaft seat b;
the sliding mechanism comprises a sliding motor, a sliding plate, a sliding rail a, a sliding rail b and a screw rod, wherein the sliding motor is arranged on the frame through a sliding motor mounting seat, one end of the screw rod is in transmission connection with the sliding motor through a coupler b, the other end of the screw rod extends into the testing box body and is connected with a screw rod seat arranged in the testing box body, the testing box body at the left side and the right side of the screw rod is also internally provided with the sliding rail a and the sliding rail b, the sliding plate is arranged on the sliding rail a and the sliding rail b through a plurality of sliding seats, the sliding plate is also arranged on the screw rod through a rolling shaft seat, a key clamp is arranged on the sliding plate, and a plurality of key switches to be tested are placed on the key clamp;
the key clamp comprises a U-shaped clamp plate, a left clamp block, a right clamp block, a clamp body and positioning pins, wherein the clamp body is arranged on the U-shaped clamp plate, the left side of the clamp body is also provided with the left clamp block, the right side of the clamp body is also provided with the right clamp block, and the clamp body is provided with a plurality of positioning pins for placing a key switch;
the heating mechanism comprises a plurality of heating pipes arranged on the inner side wall of the test box body;
the device also comprises a PLC controller, wherein the controller is connected with the stepping motor and the sliding motor through a driver a and a driver b respectively, and the PLC controller is also connected with the heating pipe through a temperature controller;
the inner side wall of the test box body is also provided with a plurality of temperature sensors, and the temperature sensors are connected with the PLC.
2. The life testing device of a key switch according to claim 1, wherein: the pressing device is also sleeved with a rubber sleeve.
3. The life testing device of a key switch according to claim 1, wherein: and the test box body is also provided with an observation window and a touch screen, and the touch screen is connected with the PLC.
4. A key switch life test device according to claim 3, wherein: and an insulating layer is further arranged on the inner side wall of the test box body.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201810457949.2A CN108398258B (en) | 2018-05-14 | 2018-05-14 | Piano key switch life-span testing arrangement |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201810457949.2A CN108398258B (en) | 2018-05-14 | 2018-05-14 | Piano key switch life-span testing arrangement |
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| CN108398258A CN108398258A (en) | 2018-08-14 |
| CN108398258B true CN108398258B (en) | 2023-11-10 |
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| Application Number | Title | Priority Date | Filing Date |
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| CN201810457949.2A Active CN108398258B (en) | 2018-05-14 | 2018-05-14 | Piano key switch life-span testing arrangement |
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Families Citing this family (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109459692A (en) * | 2019-01-03 | 2019-03-12 | 珠海隆鑫科技有限公司 | A kind of modular switch fatigue tester and test method |
| CN111982484B (en) * | 2020-08-19 | 2021-06-15 | 无锡科睿检测服务有限公司 | Speed-division pressing type automobile key life detection system |
| CN112556962A (en) * | 2020-12-07 | 2021-03-26 | 安徽江淮汽车集团股份有限公司 | Reliability test bed and method |
| CN113916579B (en) * | 2021-10-25 | 2023-10-31 | 江苏经贸职业技术学院 | Comprehensive testing device suitable for financial equipment modules of different specification types |
| CN114166498A (en) * | 2021-12-09 | 2022-03-11 | 成都成维精密机械制造有限公司 | Button lock durability test device |
| CN116586777B (en) * | 2023-07-12 | 2023-10-13 | 南通优睿半导体有限公司 | Semiconductor laser marking machine with pressure test function automation |
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| CN202133603U (en) * | 2011-06-03 | 2012-02-01 | 惠州市德赛西威汽车电子有限公司 | Key durance test device |
| CN104459528A (en) * | 2014-11-26 | 2015-03-25 | 江门市竞晖电器实业有限公司 | Key switch service life testing device |
| CN205940971U (en) * | 2016-08-30 | 2017-02-08 | 余正明 | Mechanical keyboard switch dust environmental test device |
| WO2017156778A1 (en) * | 2016-03-18 | 2017-09-21 | 深圳市艾励美特科技有限公司 | Test fixture for electronic product |
| CN208254780U (en) * | 2018-05-14 | 2018-12-18 | 五邑大学 | A kind of key switch endurance testing device |
Family Cites Families (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| TWI479138B (en) * | 2013-03-22 | 2015-04-01 | Quanta Comp Inc | Keyboard testing machine |
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2018
- 2018-05-14 CN CN201810457949.2A patent/CN108398258B/en active Active
Patent Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN202133603U (en) * | 2011-06-03 | 2012-02-01 | 惠州市德赛西威汽车电子有限公司 | Key durance test device |
| CN104459528A (en) * | 2014-11-26 | 2015-03-25 | 江门市竞晖电器实业有限公司 | Key switch service life testing device |
| WO2017156778A1 (en) * | 2016-03-18 | 2017-09-21 | 深圳市艾励美特科技有限公司 | Test fixture for electronic product |
| CN205940971U (en) * | 2016-08-30 | 2017-02-08 | 余正明 | Mechanical keyboard switch dust environmental test device |
| CN208254780U (en) * | 2018-05-14 | 2018-12-18 | 五邑大学 | A kind of key switch endurance testing device |
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