CN109489963A - Automobile button service life durable test device - Google Patents
Automobile button service life durable test device Download PDFInfo
- Publication number
- CN109489963A CN109489963A CN201811591060.XA CN201811591060A CN109489963A CN 109489963 A CN109489963 A CN 109489963A CN 201811591060 A CN201811591060 A CN 201811591060A CN 109489963 A CN109489963 A CN 109489963A
- Authority
- CN
- China
- Prior art keywords
- key
- fixed
- service life
- temperature control
- control box
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
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Classifications
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- 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
- G01—MEASURING; TESTING
- G01M—TESTING STATIC OR DYNAMIC BALANCE OF MACHINES OR STRUCTURES; TESTING OF STRUCTURES OR APPARATUS, NOT OTHERWISE PROVIDED FOR
- G01M17/00—Testing of vehicles
- G01M17/007—Wheeled or endless-tracked vehicles
Abstract
The present invention provides a kind of automobile button service life durable test devices, including temperature control box and the power mechanism being arranged on the outside of temperature control box, the fixed mechanism for the fixed auto parts and components containing key is provided in the temperature control box, the pressure mechanism for testing key is arranged in the outside opposite with the fixed mechanism, and the power mechanism is connect with pressure mechanism by crankshaft rotating mechanism and carries out circulating analog pressing test to key.The device overcomes the problem that servo motor cannot be placed in temperature control box, realizes the movement of simulation manpower key, the structure operation that complete machine is taken is simple, and flexibility ratio is higher, and the range of adaptation is wider, can test multiple products simultaneously, more efficient.
Description
Technical field
It is resistance in particular to a kind of automobile button service life the present invention relates to automobile assembly durability test technical field
Long test device.
Background technique
Fatigue is the main damage forms of auto parts and components, in actual use, continuous with speed due to loading
Changing these components would generally be by periodic alternate stress until destroying, this is thus referred to as fatigue rupture, when destruction
Mileage or cycle-index are fatigue life.Currently, key and touch screen are used in electronic product extensively, using as number
According to the peripheral equipment inputted with control command, such as: automobile, personal computer, industrial control unit (ICU) etc. have the function of information input
Electronic equipment, and the direct operating unit of keyboard be key, with touch screen electronic equipment direct operating unit be touching
It touches screen, thus the quality of key and touch screen and its whether can directly affect the operation of the electronic equipment with normal operating,
Most of electronic product is required to be detected before starting assembling or after being completed.Now, various zero on automobile
Part application is also more and more, in order to promote auto parts and components quality, reduces components production cost, improves vehicle comprehensive competition
Power, auto parts and components either exploitation or volume production stage be both needed to carry out reliability demonstration, components endurance test its act on
In the correctness of verifying product design, the reliability of the reasonability of manufacturing process and the work of each component, various controls are pressed in automobile
Key it is durable, all the time be embody automotive quality a pith, it is therefore desirable to key class part on automobile
Carry out actuation endurance test.
The purpose of automobile button service life durable test is the situation of analog subscriber routine use automobile, tests different parts
Push button longevity situation and the size that is effectively used as power of verifying automobile button, simulate people's key tap, verify product key, it is thin
The service life of the materials such as film, silica gel push-button, silica gel panel.Automobile button service life durable test can be confirmed that automobile button designs
Whether there is or not the missing in design, the flaw whether there is or not machining machine and tool or technology can be confirmed, can be confirmed indefectible zero group
Part can be confirmed that whether there is or not any variation generations.Existing automobile button service life durable testing machine, can only test at normal temperature, cannot
Carry out high/low temperature and temperature and humidity circulation experiment.
And precision is low, low efficiency, and appropriate products are single.
The present invention is therefore.
Summary of the invention
The present invention is intended to provide a kind of automobile button service life durable test device, to solve the problems of the prior art.
To achieve the goals above, according to an aspect of the invention, there is provided a kind of automobile button service life durable test
Device, including temperature control box and the power mechanism being arranged on the outside of temperature control box, which is characterized in that be provided with and be used in the temperature control box
The fixed mechanism of the fixed auto parts and components containing key, the outside opposite with the fixed mechanism are arranged for testing key
Pressure mechanism, the power mechanism are connect with pressure mechanism by crankshaft rotating mechanism and carry out circulating analog pressing survey to key
Examination.
Technical solution of the present invention is by external on the outside of temperature control box by power mechanism, by fixed mechanism, pressure mechanism, crankshaft
Rotating mechanism etc. is all installed in temperature control box, can shield influence of the power mechanism to automobile button service life durable test, temperature control
It can can be configured according to the requirement of automobile button with low temperature, temperature with high temperature in case.
Further technical solution is that guiding mechanism is arranged on the outside of the fixed mechanism, and the pressure mechanism setting is being led
It is slided to mechanism and along the guide direction of guiding mechanism.
Further technical solution is that the power mechanism includes servo motor, and the output shaft of the servo motor passes through
Transmission shaft through temperature control box connect driving crankshaft rotating mechanism rotation with crankshaft rotating mechanism.
Manpower in practical application is simulated in the prior art to the pressing of key class part on automobile, electronic product and to loose one's grip dynamic
Make, realized often through the stretching motion of cylinder, by adjusting throttle valve opening come adjustment effect in the pressing on part
Power size, in general larger to the adjusting difficulty of throttle valve opening, noise is big when electromagnetism Vavle switching cylinder intake direction, cylinder
Also exhaust noise is generated when exhaust, the stretching motion using cylinder carry out the pressing of analogue-key class part and loose one's grip act when,
High to the stability requirement of gas source, cylinder action is larger in the pressing fluctuation of key, is unable to ensure the stabilization of gas source atmospheric pressure value,
Also the pressing force value that cannot ensure the pressing to key class part and loose one's grip when acting, and then the precision for not being able to satisfy test is wanted
It asks.Rotary motion is become to move along a straight line up and down by the present invention by crankshaft rotating mechanism, realizes that simulation hand presses the movement of key,
The size of pressing force is controlled by pressure mechanism.
Further technical solution is, the pressure mechanism includes with each of auto parts and components containing key by key mapping
Corresponding pressure head is set, the pressure head is fixed on movable plate, and the activity board ends are slided up and down with guiding mechanism cooperation；It is described
Clump weight is arranged in the upper end of movable plate, and the clump weight carries out counterweight according to the preset requirement of each key testing.
Further technical solution is that the guiding mechanism includes four guide upright posts being fixed on fixed mechanism, described
The guide sleeve fixed with movable plate is arranged on guide upright post.
Further technical solution is that several strip grooves are arranged on the movable plate, the pressure head through strip groove with
Auto parts and components press key contacts, and the strip groove is used to adjust the projection position of pressure head according to the key position of auto parts and components
It sets.
Further technical solution is that the crankshaft rotating mechanism includes crankshaft, and the crankshaft two end is fixed with transmission shaft,
The crankshaft is connect by connecting rod with movable plate, and the crank rotation drives movable plate to move up and down.
Further technical solution is that the fixed mechanism includes the fixation bottom plate fixed with temperature control box, the automobile zero
Component is fixed on fixed bottom plate.
Compared with prior art, the present invention has substantive distinguishing features following prominent and conspicuousness progress:
Automobile button service life durable test device of the present invention can be applied to key as push button longevity durability experiment equipment
Service life durable test field.The present invention cannot test in high-low temperature chamber again before overcoming the problems, such as, experimental machine structure is simpler
It is single ingenious, while automation control is used, experiment finishes, is automatically stopped, and easy to operate, precision is higher, and equipment is more stable and reliable.
Adaptation range is wider, more efficient, remodels more convenient.
Automobile button service life durable test device of the present invention adds the form of transmission shaft using servo motor, by power source and into
The executing agency of row key durable test separates, to occur under the conditions of avoiding for power source being placed on high and low temperature environment unstable
Phenomenon, high and low temperature environment are enclosed in temperature control box, it is ensured that the temperature in temperature control box keeps stablizing, in addition simple with one
Mechanism (crankshaft) rotary motion is become to move along a straight line up and down, realize that simulation hand presses the movement of key.
The present invention overcomes the difficulty that servo motor cannot be placed in temperature control box compared with experimental facilities in the prior art
Topic, power source are successfully transferred power in temperature control box, while cleverly converting rotary motion to by a transmission shaft
Linear motion up and down, to realize simulation manpower by the movement of key, the structure operation that complete machine is taken is simple, and flexibility ratio is higher,
The range of adaptation is wider, can test multiple products simultaneously, more efficient.
Detailed description of the invention
The Figure of description for constituting a part of the invention is used to provide further understanding of the present invention, and of the invention shows
Examples and descriptions thereof are used to explain the present invention for meaning property, does not constitute improper limitations of the present invention.In the accompanying drawings:
The structure that Fig. 1 shows the automobile button service life durable test device that a kind of exemplary embodiment of the present invention proposes is shown
It is intended to.
Fig. 2 shows a kind of automobile button service life another structures of durable test device that exemplary embodiment proposes of the invention
Schematic diagram.
Specific embodiment
It is noted that following detailed description is all illustrative, it is intended to provide further instruction to the present invention.Unless another
It indicates, all technical and scientific terms used herein has usual with general technical staff of the technical field of the invention
The identical meanings of understanding.
It should be noted that term used herein above is merely to describe specific embodiment, and be not intended to restricted root
According to exemplary embodiments of the present invention.As used herein, unless the context clearly indicates otherwise, otherwise singular
Also it is intended to include plural form, additionally, it should be understood that, when in the present specification using term "comprising" and/or " packet
Include " when, indicate existing characteristics, step, operation, device, component and/or their combination.
It should be noted that description and claims of this specification and term " first " in above-mentioned attached drawing, "
Two " etc. be to be used to distinguish similar objects, without being used to describe a particular order or precedence order.It should be understood that using in this way
Data be interchangeable under appropriate circumstances, so that embodiments of the present invention described herein for example can be in addition to herein
Sequence other than those of diagram or description is implemented.In addition, term " includes " and " having " and their any deformation, it is intended that
Be to cover it is non-exclusive include, for example, containing the process, method, system, product or equipment of a series of steps or units not
Those of be necessarily limited to be clearly listed step or unit, but may include be not clearly listed or for these processes, side
The intrinsic other step or units of method, product or equipment.
For ease of description, spatially relative term can be used herein, as " ... on ", " ... top ",
" ... upper surface ", " above " etc., for describing such as a component shown in the figure or module or feature and other
The spatial relation of component or module or feature.It should be understood that spatially relative term be intended to comprising in addition to component or
Different direction in use or operation except orientation of person's module described in figure.For example, if component in attached drawing
Perhaps module is squeezed, be described as " above other component or module or construction " or " in other component or module or
On construction " component or module after will be positioned as " below other component or module or construction " or " at other
Under component or module or construction ".Thus, exemplary term " ... top " may include " ... top " and
" in ... lower section " two kinds of orientation.The component or module can also be positioned with other different modes (to be rotated by 90 ° or in other
Orientation), and respective explanations are made to the opposite description in space used herein above.
As background technique is introduced, prior art automobile button equipment for testing service life can only be tested at normal temperature, no
It can be carried out high/low temperature and temperature and humidity circulation experiment.And precision is low, and low efficiency, appropriate products are single, and the present invention provides one kind
Automobile button service life durable test device, solves these problems in the prior art.
A specific embodiment of the invention provides a kind of automobile button service life durable test device, comprising: temperature control box and
Power mechanism on the outside of temperature control box is set, which is characterized in that is provided in the temperature control box for the fixed vapour containing key
The fixed mechanism of vehicle components, the pressure mechanism for testing key is arranged in the outside opposite with the fixed mechanism, described dynamic
Force mechanisms are connect with pressure mechanism by crankshaft rotating mechanism and carry out circulating analog pressing test to key.
The present invention adds the form of transmission shaft using servo motor, power source and executing agency is separated, to avoid to move
Power source is placed on the wild effect occurred in high-low temperature chamber, and by crankshaft rotary motion, the movement of pressure mechanism is become up and down
Linear motion realizes that simulation hand presses the movement of key.
The total degree and experiment frequency that setting experiment carries out on automation control case are required according to key durability test
Rate replaces suitable clump weight, presses start button, servo motor rotation, and crank rotating mechanism band dynamic head moves up and down, because
Have relative motion between pressure head and movable plate, when crankshaft is moved to limes superiors position, movable plate band dynamic head rise, make itself and
Key is detached from, and when crankshaft is moved to limit inferior position, pressure head is pressed on key, and key bears the pressure that clump weight is born；Such as
This circulation completes experiment.
Embodiment
As depicted in figs. 1 and 2, the automobile button service life durable test device, including temperature control box (not shown) and setting exist
Power mechanism (not shown) on the outside of temperature control box, the temperature control box can set predetermined temperature, such as the requirement of key durability test
Temperature requirement.Setting fixed mechanism, pressure mechanism and crankshaft rotating mechanism in temperature control box.
Specifically, the fixed mechanism for the fixed auto parts and components containing key is provided in the temperature control box, with institute
State the opposite outside of fixed mechanism and pressure mechanism for testing key be set, the power mechanism by crankshaft rotating mechanism with
Pressure mechanism connection carries out circulating analog pressing test to key.
Guiding mechanism is set on the outside of the fixed mechanism, and the pressure mechanism is arranged in guiding mechanism and along guiding mechanism
Guide direction sliding.The power mechanism includes servo motor (not shown), and the output shaft of the servo motor passes through through temperature
The transmission shaft 1 of control case connect driving crankshaft rotating mechanism rotation with crankshaft rotating mechanism 2.The pressure mechanism include with containing by
The corresponding pressure head 3 of each key position of the auto parts and components of key, the pressure head are fixed on movable plate 4, the movable plate two
End is slided up and down with guiding mechanism cooperation；Clump weight 5 is arranged in the upper end of the movable plate, and the clump weight 5 is according to each key
The preset requirement of test carries out counterweight.
The guiding mechanism includes four guide upright posts 6 being fixed on fixed mechanism, is arranged and lives on the guide upright post 6
The fixed guide sleeve 7 of movable plate.1 strip groove 8 is set on the movable plate, and the pressure head is through strip groove and auto parts and components
By key contacts, the strip groove is used to adjust the projected position of pressure head according to the key position of auto parts and components.
The crankshaft rotating mechanism includes crankshaft, and the crankshaft two end is fixed with transmission shaft, the crankshaft by connecting rod with
Movable plate connection, the crank rotation drive movable plate to move up and down.The fixed mechanism includes the fixation fixed with temperature control box
Bottom plate 9, the auto parts and components are fixed on fixed bottom plate.
Experiment start after, operator be arranged on automation control case according to national standard experiment progress total degree with
And test frequency, suitable clump weight is replaced on pressure mechanism；
Automobile button components are installed on fixed mechanism, start button, servo motor rotation, crank whirler are pressed
Structure band dynamic head moves up and down, because there is relative motion between pressure head and movable plate, when crankshaft is moved to limes superiors position, and activity
Strip dynamic head rises, and is detached from itself and key, and when crankshaft is moved to limit inferior position, pressure head is pressed on key, and key is born
The pressure that clump weight is born；So circulation completes experiment.
It can be seen from the above description that the above embodiments of the present invention realized the following chievements:
For test device of the invention compared with experimental facilities in the prior art, temperature cannot be placed on by overcoming servo motor
The problem in case is controlled, power source is successfully transferred power in temperature control box by a transmission shaft, while cleverly will rotation
Conversion of motion is to move along a straight line up and down, to realize simulation manpower by the movement of key, the structure operation that complete machine is taken is simple, spirit
Activity is higher, and the range of adaptation is wider, can test multiple products simultaneously, more efficient.
The foregoing is only a preferred embodiment of the present invention, is not intended to restrict the invention, for the skill of this field
For art personnel, the invention may be variously modified and varied.All within the spirits and principles of the present invention, made any to repair
Change, equivalent replacement, improvement etc., should all be included in the protection scope of the present invention.
Claims (8)
1. a kind of automobile button service life durable test device, including temperature control box and the power mechanism being arranged on the outside of temperature control box,
It is characterized in that, the fixed mechanism for the fixed auto parts and components containing key is provided in the temperature control box, with the fixation
The pressure mechanism for testing key is arranged in the opposite outside of mechanism, and the power mechanism passes through crankshaft rotating mechanism and press machine
Structure connection carries out circulating analog pressing test to key.
2. automobile button service life durable test device according to claim 1, which is characterized in that
Guiding mechanism is set on the outside of the fixed mechanism, and guiding mechanism and the guiding along guiding mechanism is arranged in the pressure mechanism
Direction sliding.
3. automobile button service life durable test device according to claim 2, which is characterized in that
The power mechanism includes servo motor, and the output shaft of the servo motor passes through the transmission shaft and crankshaft through temperature control box
Rotating mechanism connection driving crankshaft rotating mechanism rotation.
4. automobile button service life durable test device according to claim 3, which is characterized in that
The pressure mechanism includes pressure head corresponding with each key position of the auto parts and components containing key, and the pressure head is solid
It is scheduled on movable plate, the activity board ends are slided up and down with guiding mechanism cooperation；Clump weight is arranged in the upper end of the movable plate,
The clump weight carries out counterweight according to the preset requirement of each key testing.
5. automobile button service life durable test device according to claim 4, which is characterized in that
The guiding mechanism includes four guide upright posts being fixed on fixed mechanism, is arranged on the guide upright post solid with movable plate
Fixed guide sleeve.
6. automobile button service life durable test device according to claim 4, which is characterized in that
Several strip grooves are set on the movable plate, and the pressure head presses key contacts, institute through strip groove and auto parts and components
Strip groove is stated for adjusting the projected position of pressure head according to the key position of auto parts and components.
7. automobile button service life durable test device according to claim 4, which is characterized in that
The crankshaft rotating mechanism includes crankshaft, and the crankshaft two end is fixed with transmission shaft, and the crankshaft passes through connecting rod and activity
Plate connection, the crank rotation drive movable plate to move up and down.
8. automobile button service life durable test device according to claim 4, which is characterized in that
The fixed mechanism includes the fixation bottom plate fixed with temperature control box, and the auto parts and components are fixed on fixed bottom plate.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201811591060.XA CN109489963A (en) | 2018-12-25 | 2018-12-25 | Automobile button service life durable test device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201811591060.XA CN109489963A (en) | 2018-12-25 | 2018-12-25 | Automobile button service life durable test device |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN109489963A true CN109489963A (en) | 2019-03-19 |
Family
ID=65711812
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201811591060.XA Pending CN109489963A (en) | 2018-12-25 | 2018-12-25 | Automobile button service life durable test device |
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| Country | Link |
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Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110017979A (en) * | 2019-05-14 | 2019-07-16 | 常州机电职业技术学院 | A kind of automobile controller test fixture |
| CN112945530A (en) * | 2021-02-01 | 2021-06-11 | 江西现代职业技术学院 | Automobile part durability test control device based on mathematical simulation |
| CN116358859A (en) * | 2023-05-24 | 2023-06-30 | 广州弘艺智车科技有限公司 | Automobile key life test system and method |
Citations (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN201266159Y (en) * | 2008-08-26 | 2009-07-01 | 比亚迪股份有限公司 | Test equipment for push button durability |
| CN101509956A (en) * | 2009-03-20 | 2009-08-19 | 曹君 | Push button longevity detection device |
| 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 |
| CN103135050A (en) * | 2011-11-22 | 2013-06-05 | 海洋王照明科技股份有限公司 | Key testing device |
| CN105258941A (en) * | 2015-11-30 | 2016-01-20 | 广东小天才科技有限公司 | Key life test device |
| CN105784342A (en) * | 2016-03-09 | 2016-07-20 | 杭州奥腾电子股份有限公司 | Press button durability testing device used in broad temperature range |
| CN209416674U (en) * | 2018-12-25 | 2019-09-20 | 江苏省优联检测技术服务有限公司 | Automobile button service life durable test device |
-
2018
- 2018-12-25 CN CN201811591060.XA patent/CN109489963A/en active Pending
Patent Citations (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN201266159Y (en) * | 2008-08-26 | 2009-07-01 | 比亚迪股份有限公司 | Test equipment for push button durability |
| CN101509956A (en) * | 2009-03-20 | 2009-08-19 | 曹君 | Push button longevity detection device |
| 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 |
| CN103135050A (en) * | 2011-11-22 | 2013-06-05 | 海洋王照明科技股份有限公司 | Key testing device |
| CN105258941A (en) * | 2015-11-30 | 2016-01-20 | 广东小天才科技有限公司 | Key life test device |
| CN105784342A (en) * | 2016-03-09 | 2016-07-20 | 杭州奥腾电子股份有限公司 | Press button durability testing device used in broad temperature range |
| CN209416674U (en) * | 2018-12-25 | 2019-09-20 | 江苏省优联检测技术服务有限公司 | Automobile button service life durable test device |
Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110017979A (en) * | 2019-05-14 | 2019-07-16 | 常州机电职业技术学院 | A kind of automobile controller test fixture |
| CN110017979B (en) * | 2019-05-14 | 2024-03-12 | 常州机电职业技术学院 | Automobile controller test fixture |
| CN112945530A (en) * | 2021-02-01 | 2021-06-11 | 江西现代职业技术学院 | Automobile part durability test control device based on mathematical simulation |
| CN112945530B (en) * | 2021-02-01 | 2023-01-24 | 江西现代职业技术学院 | Automobile part durability test control device based on mathematical simulation |
| CN116358859A (en) * | 2023-05-24 | 2023-06-30 | 广州弘艺智车科技有限公司 | Automobile key life test system and method |
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