CN208969210U - A kind of push button longevity detection device - Google Patents
A kind of push button longevity detection device Download PDFInfo
- Publication number
- CN208969210U CN208969210U CN201821646018.9U CN201821646018U CN208969210U CN 208969210 U CN208969210 U CN 208969210U CN 201821646018 U CN201821646018 U CN 201821646018U CN 208969210 U CN208969210 U CN 208969210U
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- China
- Prior art keywords
- mandril
- cam
- optical axis
- push button
- detection device
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Abstract
A kind of push button longevity detection device of the utility model, motor rotation is controlled by single-chip microcontroller, motor driven optical axis rotation connected to it, cam is provided on optical axis, cam uses eccentric setting, one mandril being resiliently supported on bracket is set in the lower section of cam, the cam of rotation is enabled periodically to press mandril；It is provided with the platform for placing switch product immediately below mandril, so that moving up and down for mandril can periodically push switch product, switch product be connected with single-chip microcontroller, display screen is connected on single-chip microcontroller, single-chip microcontroller, which synchronizes, to be counted and show by display screen；When switch product damage, single-chip microcontroller stops counting, and the number on display screen is the service life that the number that is pressed of switch product switchs at this time.The utility model has structure simple, easy to accomplish, easy to operate, can give full play to the advantage of electromechanical integration, can meet the needs of detecting instantly to various push button longevity.
Description
Technical field
The utility model belongs to key switch application field more particularly to a kind of push button longevity detection device.
Background technique
With the arrival of information age, the usage amount of the equipment such as key, button, switch is more and more, for their matter
The requirement of amount is also higher and higher, and the service life of the equipment such as key, button, switch directly influences the reliability of system, in order to
It helps production firm or purchaser quickly to detect the superiority and inferiority of the quality of the equipment such as key, button, switch, needs to carry out key tired
Labor test, but there is detection effect inaccuracy in existing key switch test machine for service life.
Utility model content
The purpose of this utility model is to provide a kind of push button longevity detection device, to solve key switch in background technique
The problem of life tests inaccuracy, improves the detection level of key switch, provides reliable life tests foundation.
To achieve the goals above, the technology employed by the present utility model is a kind of push button longevity detection device, packet
Include: the optical axis being supported on rack cross-bar is socketed with cam on optical axis, and mandril, mandril resilient support are provided with below cam
On bracket, the bottom of mandril is placed with switch to be detected, and switch to be detected is connected with counter.
Further, the both ends of the rack cross-bar are provided with bearing block, and the both ends of optical axis are each passed through the axis at both ends
It holds seat and realizes being freely rotated on bracket.
Further, it is provided with support platform on the column of the bracket, through-hole, and through-hole position are provided in support platform
In the underface of cam, through-hole elastic connection is protruded into support platform in the lower end of mandril.
Further, crown cap is arranged in the mandril, is socketed with spring on mandril, and upper end and the top cap of spring offset, under
End offsets with support platform；The lower part of mandril penetrates the through-hole of support platform.
Further, the counter is electrically connected with control unit, and control unit is provided with display screen, display screen via
The count results of control unit simultaneous display counter.
Further, one end of the optical axis is connected with motor, and the motor is electrically connected described control unit, motor response
The rotation to optical axis is completed in control unit to control.
Further, the optical axis connects the output shaft of motor by shaft coupling, realizes the stabilization between optical axis and motor
Connection.
Further, cam is enabled to be securely fixed in optical axis using interference fit between the cam and optical axis
On.
Further, described control unit is single-chip microcontroller.
It further, further include the buzzer being connected with single-chip microcontroller, buzzer issues alarm signal in response to single-chip microcontroller.
Compared with prior art, the utility model at least has the following beneficial effects:
The utility model is rotated by the way that the optical axis that can be freely rotated a band moving cam is arranged, and further, cam can
It is pressed, and is equipped on mandril with being formed to mandril with guaranteeing to only have in the course of rotation one end can contact mandril
Spring so that the periodicity that the periodic rotary of cam is converted into mandril moves up and down, to form the periodicity to switch
Pressing.
The cam of rotation can periodically press the mandril being arranged in immediately below cam, and mandril can press after being pressed
The switch to be detected being placed below mandril, switch to be detected transmit a signal to counter after being pressed, pass through counter pair
The compression number of switch carries out stored count, and until switching damage to be detected, the number of counter is making for switch to be detected
Use the service life；Mandril is resiliently supported on bracket, and the self- recoverage of mandril may be implemented, in this way after the completion of cam once presses, top
Bar can restore to origin-location, be ready for pressing next time.The utility model is by machinery, signal processing technology, electricity
The multiple technologies such as sub- technology organically blend, and embody the intelligentized developing direction of Mechatronic Systems, and have structure simple,
It is easy to accomplish, it is easy to operate, the advantage of electromechanical integration can be given full play to, can meet and various push button longevity are detected instantly
Demand.
Further, by the way that a bearing block is respectively arranged at the both ends of rack cross-bar, the both ends of optical axis are respectively penetrated into axis
Seat is held, optical axis is supported on bracket, can be freely rotated on bracket by realization.
Further, mandril is placed by the way that a support platform is arranged on the column of bracket, is socketed on mandril
The top cap of mandril is withstood in spring, one end of spring, and the other end resists the support platform of bracket, thus complete mandril position from extensive
It is multiple；Support platform has certain thickness, so that aperture has certain height, can prevent mandril is in the horizontal direction to shake
It shakes, ensure that the steady contact between mandril and cam.
Further, cam mechanism has small in size, low cost, high-efficient, applied widely feature；Use motor driven
Cam clicks mechanism, and instead of manual operation, high degree of automation mitigates worker's fatigue strength, improves detection efficiency；
Further, motor is connected by single-chip microcontroller, to control the rotation of motor, when single-chip microcontroller detects switching damage
Motor stalls are controlled, and controls connected buzzer and issues alarm signal, staff is reminded to detect the knot of program
Beam simultaneously carries out subsequent operation.
Detailed description of the invention
Fig. 1 is the structural schematic diagram of the utility model；
Fig. 2 is the top view of the utility model；
Fig. 3 is the enlarged side view in the portion A-A in Fig. 1；
Fig. 4 is that single-chip microcontroller controls signal circulation schematic diagram in the utility model；
In figure: 1, bearing block, 2, cam, 3, optical axis, 4, shaft coupling, 5, motor, 6, bracket, 7, spring, 8, mandril.
Specific embodiment
The utility model is further introduced with reference to the accompanying drawing.
As shown in Figure 1, a kind of push button longevity detection device of the utility model, including motor 5, the input terminal of motor 5 are electrically connected
It is connected to single-chip microcontroller, single-chip microcontroller is used to control the rotation of motor 5；Be connected with shaft coupling 4 on the output shaft of motor 5, shaft coupling 4 it is another
One end connects optical axis 3, and optical axis 3 passes through the bearing block 1 that 6 two sides of bracket are arranged in, and branch is fixed on by way of two supports
On frame 6, using the assembly method of interference fit between bearing block 1 and optical axis 3, and it is using jackscrew that bearing block 1 and optical axis 3 is fixed
Tightly, so that optical axis 3 is capable of fixing on bearing block 1, rotating freely for optical axis 3 is realized.
In the preferred embodiment of the utility model, optical axis 3 uses length for 500mm, and diameter is made of the aluminium bar of 10mm.
In the preferred embodiment of the utility model, the internal orifice dimension of bearing block 1 is matched with the radial dimension of optical axis 3, so that
Bearing block 1 can just be clamped optical axis 3, and using jackscrew that bearing block 1 and optical axis 3 is fixed tight, realize being fixedly connected for the two.
It is fixed on the frame 6 that bearing block 1 adopts the mode being screwed.
As shown in Fig. 2, being socketed with cam 2 on optical axis 3, the middle position of optical axis 3 is arranged in cam 2, between the two simultaneously
Fixed with jackscrew, and between cam 2 and optical axis 3 using interference fit assembled mode, and using jackscrew cam 2 with
Optical axis 3 is fixed, and cam 2 is clamped securely on optical axis 3.Cam 2 when rotated, the side energy far from via hole
The mandril 8 below cam 2 is arranged in enough contacts, and the underface of cam 2 is arranged in mandril 8, and mandril 8 uses similar " T-type setting ",
Its top cap is used to receive the pressing of mandril 8, and in order to reduce mandril 8 to the frictional resistance of cam 2, convenient for cam 2 and mandril 8 it
Between contact, top cap is set as hemispherical, improves cam 2 to the pressing effect of mandril 8；Mandril 8 is made of aluminium bar, is erected
The diameter of straight-bar is set as 7mm, and the diameter of top cap is 20mm.
As shown in figure 3, mandril 8 is placed in the support platform of bracket 6, support platform is arranged on the column of bracket 6, branch
Support platform is provided with hole up and down, and for placing mandril 8, and hole is located at the underface of cam 2, enables cam 2
Enough periodically pressing mandrils 8,；The vertical bar of mandril 8 protrudes into the through-hole of bracket 6, and through-hole has certain height, can be to top
Bar 8, which is formed, stablizes support, and mandril 8 is prevented to be swung left and right；Spring 7, one end of spring 7 and the top cap of mandril 8 are cased on mandril 8
It offsets, the other end resists the support platform of supporting post-rod 8, to guarantee to reset in time when mandril 8 is not extruded.
Motor 5 drives optical axis 3 to rotate, and drives cam 2 periodically to be rotated in turn, and cam 2 is generated because of rotation
The periodicity that displacement difference is converted into mandril 8 moves up and down, and mandril 8 is provided with below cam 2, mandril 8 is under the action of spring 7
Can self- recoverage, to realize moving up and down for mandril 8.
It is provided in the column lower end of bracket 6 and puts object platform, for placing the products such as switch to be detected, key, house is flat
Platform is located at the lower section of support platform, specifically, switch, key for being placed on object platform etc. be placed exactly in mandril 8 just under
Side, in this way in the reciprocal periodicity pressing that can be formed in the process to switch product of mandril 8.
It is illustrated in figure 4 a kind of detection process of push button longevity detection device of the utility model:
Switch product to be detected is connected with single-chip microcontroller, and single-chip microcontroller is counted by the on-off signal of detection switch product,
And display is synchronized by connected display screen, so that the signal of switch output is converted into number and is shown in LED display
On；There is key switch common end, normally opened contact and normally-closed contact to open key in the preferred embodiment of the utility model
The common end of pass connects GND the and P3.0 pin of single-chip microcontroller with normally opened contact, after key exports a level signal to I/O port,
Single-chip microcontroller count accumulative, switch product of every pressing, and single-chip microcontroller counts adds 1 automatically, and is shown by connected LED
Screen synchronizes display；If key switch breaks down or fails, single-chip microcontroller can't detect level signal, and single-chip microcontroller stops meter
Number, correspondingly LED display counting no longer change, and the number on LED display is the fatigue of switch product to be detected at this time
Service life, single-chip microcontroller control motor 5 stop operating, and detection terminates.
Buzzer is additionally provided in the embodiment of the utility model, buzzer is connected on single-chip microcontroller, when single piece clip detects
To when key switch damage, single-chip microcontroller issues instruction control buzzer to buzzer and issues alarm signal, by voice prompting or
The mode of person's audible alarm reminds staff that test process terminates.
In the preferred embodiment of the utility model, single-chip microcontroller uses STC89C52 single chip；Motor 5 uses GB/T755-
65 type 24V direct current generators, the single-chip microcontroller and motor are the prior art, and the utility model is not related to the improvement to it.
In the utility model, motor 5 rotation by shaft coupling 4 with moving cam 2 rotate, cam mechanism have it is small in size, make
Valence is low, high-efficient, feature applied widely；It drives cam 2 to rotate with motor 5, instead of manual operation, it is strong to mitigate worker's fatigue
Degree, high degree of automation improve detection efficiency；Cam 2 is converted into the periodicity of optical axis 3 up and down because of the displacement difference that rotation generates
Mobile, at the same time, 8 push switch of mandril switchs the number being pressed and shows and record by LED display, to reflect
The service life of key switch out.The feature that the utility model has structure simple, easy to use and high test accuracy rate.
Described in the above embodiment and specification is only the preference of the utility model, and it is practical new to be not intended to limit this
Type, on the premise of not departing from the spirit and scope of the utility model, the utility model also has various changes and improvements, these changes
Change and improvement is fallen within the scope of the claimed invention.The utility model requires protection scope is wanted by appended right
Ask book and its equivalent thereof.
Claims (10)
1. a kind of push button longevity detection device, which is characterized in that including bracket (6) and the light being supported on bracket (6) cross bar
Axis (3) is socketed with cam (2) on optical axis (3), is provided with below cam (2) mandril (8), mandril (8) is resiliently supported at bracket
(6) on, the bottom of mandril (8) is placed with switch to be detected, and switch to be detected is connected with counter.
2. a kind of push button longevity detection device as described in claim 1, which is characterized in that the both ends of bracket (6) cross bar
It is provided with bearing block (1), bearing block (1) realization that the both ends of optical axis (3) are each passed through both ends freely turns on bracket (6)
It is dynamic.
3. a kind of push button longevity detection device as described in claim 1, which is characterized in that set on the column of the bracket (6)
It is equipped with support platform, through-hole is provided in support platform, and through-hole is located at the underface of cam (2), the lower end of mandril (8) is protruded into
Through-hole elastic connection is in support platform.
4. a kind of push button longevity detection device as claimed in claim 3, which is characterized in that crown cap is arranged in the mandril (8),
It is socketed on mandril (8) spring (7), the upper end of spring (7) offsets with top cap, and lower end offsets with support platform；Under mandril (8)
Portion penetrates the through-hole of support platform.
5. a kind of push button longevity detection device as described in claim 1, which is characterized in that the counter is electrically connected with control
Unit, and control unit is provided with display screen, display screen via control unit simultaneous display counter count results.
6. a kind of push button longevity detection device as claimed in claim 5, which is characterized in that one end of the optical axis (3) connects
Have motor (5), the motor (5) is electrically connected described control unit, and motor (5) is completed in response to control unit to optical axis (3)
Rotation control.
7. a kind of push button longevity detection device as claimed in claim 6, which is characterized in that the optical axis (3) passes through shaft coupling
(4) output shaft for connecting motor (5), realizes being stably connected between optical axis (3) and motor (5).
8. a kind of push button longevity detection device as described in claim 1, which is characterized in that the cam (2) and optical axis (3) it
Between using interference fit so that cam (2) can be securely fixed on optical axis (3).
9. such as a kind of push button longevity detection device described in claim 5 or 6, which is characterized in that described control unit is monolithic
Machine.
10. a kind of push button longevity detection device as claimed in claim 9, which is characterized in that further include being connected with single-chip microcontroller
Buzzer, buzzer issue alarm signal in response to single-chip microcontroller.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201821646018.9U CN208969210U (en) | 2018-09-29 | 2018-09-29 | A kind of push button longevity detection device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201821646018.9U CN208969210U (en) | 2018-09-29 | 2018-09-29 | A kind of push button longevity detection device |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN208969210U true CN208969210U (en) | 2019-06-11 |
Family
ID=66759366
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201821646018.9U Expired - Fee Related CN208969210U (en) | 2018-09-29 | 2018-09-29 | A kind of push button longevity detection device |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN208969210U (en) |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN111964894A (en) * | 2020-09-24 | 2020-11-20 | 上海拓牛智能科技有限公司 | Bucket cover service life testing device |
| CN113375916A (en) * | 2021-05-12 | 2021-09-10 | 张燕娜 | Ignition switch usability testing device and testing method |
| CN113624465A (en) * | 2021-06-21 | 2021-11-09 | 安徽工程大学 | Mechanical life detection assembly for automobile button switch |
-
2018
- 2018-09-29 CN CN201821646018.9U patent/CN208969210U/en not_active Expired - Fee Related
Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN111964894A (en) * | 2020-09-24 | 2020-11-20 | 上海拓牛智能科技有限公司 | Bucket cover service life testing device |
| CN113375916A (en) * | 2021-05-12 | 2021-09-10 | 张燕娜 | Ignition switch usability testing device and testing method |
| CN113375916B (en) * | 2021-05-12 | 2023-01-17 | 浙江浙南机车业有限公司 | Ignition switch use performance testing device and testing method |
| CN113624465A (en) * | 2021-06-21 | 2021-11-09 | 安徽工程大学 | Mechanical life detection assembly for automobile button switch |
| CN113624465B (en) * | 2021-06-21 | 2023-06-20 | 安徽工程大学 | Mechanical life detection assembly for automobile button switch |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| GR01 | Patent grant | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20190611 Termination date: 20200929 |
|
| CF01 | Termination of patent right due to non-payment of annual fee |