CN106124150A - A kind of detecting device and using its adjusting means for centering - Google Patents
A kind of detecting device and using its adjusting means for centering Download PDFInfo
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- CN106124150A CN106124150A CN201610792904.1A CN201610792904A CN106124150A CN 106124150 A CN106124150 A CN 106124150A CN 201610792904 A CN201610792904 A CN 201610792904A CN 106124150 A CN106124150 A CN 106124150A
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- China
- Prior art keywords
- moving component
- parts
- photoelectricity testing
- centering
- vibration
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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
- G01M7/00—Vibration-testing of structures; Shock-testing of structures
- G01M7/02—Vibration-testing by means of a shake table
- G01M7/027—Specimen mounting arrangements, e.g. table head adapters
-
- G—PHYSICS
- G01—MEASURING; TESTING
- G01M—TESTING STATIC OR DYNAMIC BALANCE OF MACHINES OR STRUCTURES; TESTING OF STRUCTURES OR APPARATUS, NOT OTHERWISE PROVIDED FOR
- G01M7/00—Vibration-testing of structures; Shock-testing of structures
- G01M7/02—Vibration-testing by means of a shake table
- G01M7/022—Vibration control arrangements, e.g. for generating random vibrations
-
- G—PHYSICS
- G01—MEASURING; TESTING
- G01M—TESTING STATIC OR DYNAMIC BALANCE OF MACHINES OR STRUCTURES; TESTING OF STRUCTURES OR APPARATUS, NOT OTHERWISE PROVIDED FOR
- G01M7/00—Vibration-testing of structures; Shock-testing of structures
- G01M7/02—Vibration-testing by means of a shake table
- G01M7/025—Measuring arrangements
Abstract
The invention provides a kind of detection device for centering and use its adjusting means, relating to a kind of dynamic environmental test device.Described device includes: two described photoelectricity testing parts are that spacing is symmetrical arranged along the direction of reciprocating vibration of moving component, whether photoelectricity testing part is blocked for its light launched of detection in real time, and the time that its light launched of detection in real time is blocked is the most identical with the time not being blocked；Vibrating mass is for blocking the light that two photoelectricity testing parts are launched, vibrating mass is fixed at the moving component of vibration table and it is between two described photoelectricity testing parts, vibrating mass along the greatest length in the direction of reciprocating vibration of moving component is, when vibrating mass is between two photoelectricity testing parts, it can not block two photoelectricity testing parts launches the greatest length of light.Achieve and dynamic centering accurately can be detected, static centering accurately can be detected again.
Description
Technical field
The present invention relates to a kind of dynamic environmental test device, particularly relate to a kind of for electric vibration testing bench centering
Detect device and use its adjusting means.
Background technology
Electric vibration testing bench (hereinafter referred to as vibration table) is a kind of testing equipment that test specimen carries out vibration mode test.
Along with improving constantly Product Safety and reliability requirement, vibration table seems more as the key equipment of reliability test
Important.Vibration table moving component automatic centering system is a vitals of vibration experiment, and its effect is for making vibration
The moving component of platform maintains equilbrium position vibration.What vibration table manufacturer employing the most both at home and abroad was more is that static controller is with dynamic
State controller.
Static controller mainly uses mechanical holder suspension supporting device to control the centre of oscillation of table top.This suspension strut fills
Put typically by the resilient suspension hanging moving-coil top with compensate and be supported in the air spring bottom moving-coil or supercharging air chamber is constituted.
Displacement transducer judges whether moving-coil is in center, then transfers signals to static controller, and static controller leads to again
Cross and make moving-coil keep center air spring or the inflatable and deflatable of supercharging air chamber.Static controller is at test specimen loading process
The most effective, to the control poor effect of center during vibration table low-frequency operation with in vibration table high frequency running.
When vibration table is operated in displacement field and speed district (low frequency region), moving coil framework (conductor) athletic meeting in magnetic field
Producing electromotive force (generating effect), this electromotive force forms current loop through moving coil framework, and this electric current will produce in working gas gap
Hindering the counteracting force of moving-coil motion, this active force can cause the dynamic drift in moving-coil center.In order to overcome this dynamically to float
Moving, introduce dynamic controller, it uses power amplifier the most additionally to inject an electric current, makes moving-coil produce one
Extra control power carrys out counteracting counterforce, thus limits moving-coil drift so that it is maintain center.
In order to effectively keep vibration table Shaft alignment state in running, have been developed that band atmospheric pressure compensating and band at present
The controller for vibration center of electric vibrating table that current compensation controls, static cost control is united two into one, the most in fact by it with dynamically control
The center of existing system motion process controls.
Master controller with atmospheric pressure compensating is by air pressure big in baroceptor detection moving-coil support air bag or air chamber
Little, and convert thereof into voltage signal input static controller, reach the compensating action to dynamic controller.Belt current compensates
Master controller uses the size of current and direction passed through in current sensor detection moving-coil, exports a reflection and drives in coil
Size of current and the voltage signal in direction, finally imported static controller, carried out dynamic controller by static cost control effect
Compensate.But the sensor that system uses mostly is eddy displacement sensor, is output as analog voltage signal, environment resistant interference performance
Difference, easily makes automatic centring device generation misoperation.Inductance type or laser type sensor, debugging complexity, relatively costly.And control
Plate uses analog circuit, and number of elements is many, and fault rate is high, and manual adjustment link is many, and board production cost is higher.
Further, there is dynamic centering detection with static centering detection not in existing vibration table moving component automatic centering system
Problem accurately.Cause vibration table moving component cannot accurate motion to preset center position at.
Summary of the invention
It is an object of the present invention to a kind of detection device for centering is provided and uses its adjusting means, to carry
The dynamic centering accuracy of high vibration table moving component automatic centering system and static centering accuracy.
A further object of the invention is intended to the moving component accurate motion so that vibration table to the centering preset
Position.
Especially, the invention provides a kind of detection device for centering, described detection device is used for detecting vibration table
Whether moving component aligns its center position preset, and described detection device includes:
Two photoelectricity testing parts, are spacing along the direction of reciprocating vibration of described moving component about described center position
Being symmetrical arranged, described photoelectricity testing part is used for whether its light launched of detection in real time is blocked, and detects it in real time
The time that the light penetrated is blocked is the most identical with the time not being blocked, to judge the most right of described vibration table moving component
In whether accurate, then send the most different signals；
Vibrating mass, for blocking the light that two described photoelectricity testing parts are launched, described vibrating mass is fixed on institute
Stating at the moving component of vibration table and it is between two described photoelectricity testing parts, described vibrating mass is along described
The greatest length in the direction of reciprocating vibration of moving component is that described vibrating mass is between two described photoelectricity testing parts
Time, it can not block two described photoelectricity testing parts launches the greatest length of light, to judge described vibration table motion portion
The static centering of part (5) is the most accurate.
Further, described photoelectricity testing part is on-off type photoswitch, and it has the light source mutually arranged in spacing
Emitter and light source accepter；
Described vibrating mass projection is configured to baffle arrangement, when described vibrating mass follows the motion of described moving component, its
Through the described light source emitter and described light source accepter of described photoelectricity testing part, to stop described light source accepter
Receive the light that described light source emitter sends.
Further, described detection device also includes that two mounting seats, each described mounting seat are used for fixing described in one
Photoelectricity testing part；And
Fixture, described fixture is for installing two described photoelectricity testing parts to described vibration table, described solid
Locking member offers strip through hole along described direction of vibration, and described mounting seat is fixed on described strip through hole by securing member
Place, described strip through hole is for regulating the position of the most described fixture of described photoelectricity testing part；
Alternatively, described fixture is L-shaped plate-like piece, and described strip through hole is opened in the vertical plate-like of described fixture
At portion, the horizontal plate-like portion of described fixture is removably fixed at described vibration table.
It addition, present invention also offers the adjusting means that a kind of use is previously used for the detection device of centering, described regulation
Device is used for carrying out centering regulation, including:
Execution unit, for adjusting the described moving component position relative to described center position, described execution unit energy
Enough receive digital signal, and adjust the described moving component position relative to described center position according to corresponding digital signal；
And
Controlling parts, have digital signal acquiring and process function, described control parts receive described photoelectric detector
The most different signal that part sends, according to the most different described signal by digital signal acquiring with process backward described in hold
Row parts send the most different digital signals, so that described moving component aligns at described center position.
Further, described control parts judge that described moving component sends centering signal after aligning described center position,
Described control parts can carry out pulse width modulation (PWM), low-pass filtering and level and adjust described centering signal, then send out
Deliver at the coil of described vibration table.
Further, described control parts have full physical isolation pattern, and described control parts are sent out to described execution unit
Before going out the most different digital signals, described digital signal is through the full physical isolation mode treatment of described control parts, to increase
The capacity of resisting disturbance of strong described digital signal.
Further, described execution unit includes:
Airbag components, described airbag components can be inflated or exit, so that its volume increases or reduces, described
Airbag components is for adjusting the described moving component position relative to described center position；
Air pump parts, described air pump parts are for inflating for described airbag components；
Electromagnetic valve, described electromagnetic valve receives the most different digital signal that described control parts send, then according to institute
State air pump parts described in the most different Digital Signals to inflate to described airbag components, or make described airbag components discharge
Corresponding gas.
Further, the 2Hz of described moving component and following frequency of vibration thereof can be set out by described control parts
State responds.
Further, described control parts have Non-follow control function, and described Non-follow control function is at described photoelectricity
By controlling described electromagnetic valve to adjust the described moving component position relative to described center position under detection device closed mode
Put.
Although also using photoelectricity testing part in prior art, but described moving component can only be carried out preliminary dynamic by it
Centering detects, and can not accurately detect static centering with dynamic centering.And the described detection device of the present invention is by right
The position of described photoelectricity testing part sets, and the positional structure of the most described photoelectricity testing part of described vibrating mass is closed
System, the most described vibrating mass is along the greatest length in the direction of reciprocating vibration of described moving component it may be that described vibrating mass
Time between two described photoelectricity testing parts, it cannot block two described photoelectricity testing parts launches the maximum of light
Length.When described vibrating mass slightly moves along described direction of vibration, an arbitrary described photoelectricity testing part can be blocked,
Thus described photoelectricity testing part can interpolate that whether described vibrating mass is blocked, and the most described vibrating mass is in two
Time between individual described photoelectricity testing part, the light of two described photoelectricity testing parts can not be blocked, and the most just
Described moving component aligns the position of described center position, it is achieved that can accurately detect dynamic centering, again can be to quiet
State centering accurately detects.
Further, adjusting means of the present invention is by digital signal acquiring and process (DSP), relative to simulation electricity
Pressure signal capacity of resisting disturbance is higher, thus avoids automatic centring device generation misoperation.The centering that improve adjusting means is accurate
Really property.
According to below in conjunction with the accompanying drawing detailed description to the specific embodiment of the invention, those skilled in the art will be brighter
Above-mentioned and other purposes, advantage and the feature of the present invention.
Accompanying drawing explanation
Describe some specific embodiments of the present invention the most by way of example, and not by way of limitation in detail.
Reference identical in accompanying drawing denotes same or similar parts or part.It should be appreciated by those skilled in the art that these
Accompanying drawing is not necessarily drawn to scale.In accompanying drawing:
Fig. 1 is the general assembly perspective schematic view of the described according to an embodiment of the invention detection device for centering；
Fig. 2 is the schematic side elevation of the described detection device for centering shown in Fig. 1；
Fig. 3 is the schematic cross sectional views of described photoelectricity testing part；
Fig. 4 is the control process schematic of the described device detecting for centering and regulating.
Detailed description of the invention
Illustrating in conjunction with Fig. 2, the described detection device for centering may be used for whether detecting vibration table moving component 5
Aligning its center position 6 preset, described detection device may include that vibrating mass 1 and two photoelectricity testing parts 2.
Two described photoelectricity testing parts 2 can be along the direction of reciprocating vibration of described moving component 5 about described centering
Position 6 is symmetrical arranged in spacing.Described photoelectricity testing part 2 may be used for detecting whether its light launched is blocked in real time,
And time that its light launched of in real time detection is blocked is the most identical with the time not being blocked, and then sends corresponding difference
Signal；Described vibrating mass 1 may be used for blocking the light that two described photoelectricity testing parts 2 are launched, described vibrating mass 1
It is fixed at the moving component 5 of described vibration table and it may be between two described photoelectricity testing parts 2, described vibration section
Part 1 is along the greatest length in the direction of reciprocating vibration of described moving component 5 it may be that described vibrating mass 1 is positioned at described in two
Time between photoelectricity testing part 2, it cannot block two described photoelectricity testing parts 2 launches the greatest length of light.
Cleaning Principle:
For static centering detection, described vibrating mass 1 offsets and blocks it to a described photoelectricity testing part 2 and launches
Light time, and another described photoelectricity testing part 2 is in the conduction state, and a described photoelectricity testing part 2 sends accordingly
Signal, to judge that described vibrating mass 1 offsets to a described photoelectricity testing part 2.Corresponding control actuator receives
To corresponding signal and adjust described vibrating mass 1 accordingly and move to the direction of photoelectricity testing part another described 2, shake when described
Dynamic component 1 is when photoelectricity testing part another described 2 offsets and block its light launched, and a described photoelectric detector
Part 2 is in the conduction state, and another described photoelectricity testing part 2 sends corresponding signal, to judge that described vibrating mass 1 is to separately
One described photoelectricity testing part 2 offsets.Corresponding control actuator receives corresponding signal and adjusts described vibration accordingly
Parts 1 move to the direction of a described photoelectricity testing part 2, until two described photoelectricity testing parts 2 are in turning on shape
State, described moving component 5 aligns described center position 6.
Dynamic centering is detected, when relative two the described photoelectricity testing parts 2 of described vibrating mass 1 move, if one
Individual described photoelectricity testing part 2 detects that the time that its light launched is blocked is more than time (the i.e. dutycycle not being blocked
Less than 50%), it sends corresponding signal, then judge that the centre of oscillation of described moving component 5 is to a described photoelectric detector
Part 2 rolls tiltedly, and corresponding control actuator receives described corresponding signal and adjusts the centre of oscillation of described moving component 5 accordingly
Move to the direction of photoelectricity testing part another described 2；
When another described, photoelectricity testing part 2 detects time that its light launched is blocked more than not being blocked
Time (i.e. dutycycle is less than 50%), it sends corresponding signal, then judge that the centre of oscillation of described moving component 5 is to another
Described photoelectricity testing part 2 rolls tiltedly, and corresponding control actuator receives described corresponding signal and adjusts described motion accordingly
The centre of oscillation of parts 5 is moved to the direction of a described photoelectricity testing part 2；
Two described photoelectricity testing parts 2 and described control actuator constantly repeat above-mentioned detection regulation process, directly
Time (the i.e. dutycycle that the time that its light launched is blocked is equal to not be blocked is detected to described photoelectricity testing part 2
Wireless close to 50%).
Although also using photoelectricity testing part in prior art, but described moving component 5 can only tentatively be moved by it
State centering detects, and can not accurately detect static centering with dynamic centering.And the described detection device of the present invention passes through
The position of described photoelectricity testing part 2 is set, and the position knot of the most described photoelectricity testing part of described vibrating mass 12
Structure relation, the most described vibrating mass 1 along the direction of reciprocating vibration of described moving component 5 greatest length it may be that described in shake
When dynamic component 1 is between two described photoelectricity testing parts 2, it cannot block two described photoelectricity testing parts 2 launches
The greatest length of light.When described vibrating mass 1 slightly moves along described direction of vibration, arbitrary described light can be blocked
Electric detector 2, thus described photoelectricity testing part 2 can interpolate that whether described vibrating mass 1 is blocked, and the most described
When vibrating mass 1 is between two described photoelectricity testing parts 2, the light of two described photoelectricity testing parts 2 can not
It is blocked, and the most described moving component 5 aligns the position of described center position 6, it is achieved that dynamic centering can be entered
Row accurately detection, accurately can detect static centering again.
Illustrating in conjunction with Fig. 3, further, described photoelectricity testing part 2 can be on-off type photoswitch, and it is permissible
There is the light source emitter 21 and light source accepter 22 mutually arranged in spacing.
Described vibrating mass 1 projection can be configured to baffle arrangement, and described vibrating mass 1 is followed described moving component 5 and transported
Time dynamic, it is through the described light source emitter 21 and described light source accepter 22 of described photoelectricity testing part 2, to stop
State light source accepter 22 and receive the light that described light source emitter 21 sends.
Relative to using the analog photoelectric sensor being susceptible to misoperation, detection device of the present invention uses break-make
Formula photoswitch has the advantages that environment resistant interference performance is strong, and it is more accurate therefore to detect.
Illustrating in conjunction with Fig. 2, further, described vibrating mass 1 is between two described photoelectricity testing parts 2
Time, described vibrating mass 1 can all keep 0.5mm gap to arrange with the transmitting light of each described photoelectricity testing part 2.
It is arranged such, the accuracy of detection can be improved further.
Illustrating in conjunction with Fig. 1, further, described detection device can also include fixture 4 and two mounting seats 3,
Each described mounting seat 3 may be used for fixing a described photoelectricity testing part 2；Described fixture 4 may be used for two institutes
Stating photoelectricity testing part 2 to install to described vibration table, described fixture 4 offers strip through hole along described direction of vibration
42, described mounting seat 3 is fixed at described strip through hole 42 by securing member, and described strip through hole 42 may be used for regulation
The position of the described the most described fixture of photoelectricity testing part 24.
It is arranged such so that simple in construction, it is simple to install and regulate the relative position of described photoelectricity testing part 2.
Illustrating in conjunction with Fig. 1, alternatively, described fixture 4 can be L-shaped plate-like piece, and described strip through hole 42 is opened
Being located at the vertical plate-like portion of described fixture 4, the horizontal plate-like portion 41 of described fixture 4 is removably fixed in described vibration table
Place.
Inventor finds, there are the problems referred to above is owing to described sensor commonly uses current vortex sensor or analog
Photoelectric sensor, but they all use output analog voltage signal, although its output signal range width, but environment resistant interference
Ability, easily makes automatic centring device generation misoperation.Therefore cause its dynamic centering detection inaccurate with static centering detection
Really.
Therefore, present invention also offers a kind of use be previously used for centering detection device carry out centering regulation regulation dress
Putting, described adjusting means may include that execution unit and controls parts 7.
Illustrating in conjunction with Fig. 4, described execution unit may be used for adjusting described moving component 5 relative to described centering position
Putting the position of 6, described execution unit can receive digital signal, and adjusts described moving component 5 according to corresponding digital signal
Position relative to described center position 6.Described control parts 7 can have digital signal acquiring and process function, described control
Parts 7 processed receive the most different signal that described photoelectricity testing part 2 sends, and pass through according to the most different described signal
Digital signal acquiring sends the most different digital signals from processing backward described execution unit, so that described moving component 5
Align at described center position 6.
Adjusting means of the present invention, by digital signal acquiring and process (DSP), resists relative to analog voltage signal
Interference performance is higher, thus avoids automatic centring device generation misoperation.Improve the centering accuracy of adjusting means.
Illustrating in conjunction with Fig. 4, further, described control parts 7 judge that described moving component 5 aligns described centering position
Sending centering signal after putting 6, described control parts 7 can carry out pulse width modulation (PWM), low-pass filtering to described centering signal
And level adjusts, it is then forwarded at the coil of described vibration table.
Further, described control parts 7 can have full physical isolation pattern, and described control parts 7 are to described execution
Before parts send the most different digital signals, described digital signal is at the full physical isolation pattern of described control parts 7
Reason, to strengthen the capacity of resisting disturbance of described digital signal.
Illustrate in conjunction with Fig. 4, further, described execution unit may include that airbag components 8, air pump parts 9 and
Electromagnetic valve 10.
Described airbag components 8 can be inflated or exit, so that its volume increases or reduces, described airbag components
8 may be used for the position adjusting described moving component 5 relative to described center position 6；Described air pump parts 9 can be described gas
Capsule parts 8 are inflated；Described electromagnetic valve 10 receives the most different digital signal that described control parts 7 send, then according to institute
State air pump parts 9 described in the most different Digital Signals to inflate to described airbag components 8, or make described airbag components 8
Discharge corresponding gas.
It is arranged such, solves described moving component 5 under load plus-minus and vibration table high frequency (more than 20Hz) service condition
Change in location problem.And have employed the control method that gas centering is combined with electricity Middle Phase.Thus further increase centering
Accuracy.
Alternatively, described adjusting means can also have vacuum pump, and described airbag components 8 can have for reducing its body
Long-pending air outlet valve, described air outlet valve can be connected with described vacuum pump, during so that described vibration table is in level, institute
Stating moving component 5 can be with automatic alignment with described center position 6.
When described vibration table is in level, the described air outlet valve other end cannot lead directly to air, because level
The gravity of state motion parts 5 does not act at airbag components 8, it is impossible to form malleation, at this moment can going out at described air outlet valve
Gas end connects vacuum pump to form negative pressure, it is achieved described moving component 5 and the automatic alignment of described center position 6.
Further, the 2Hz of described moving component 5 and following frequency of vibration thereof can be made by described control parts 7
Dynamic response.
It is arranged such, in order to meet the needs of low-frequency vibration, it is therefore necessary to 2Hz and following frequency of vibration thereof are set out
State responds, and can not make described control parts 7 that 2Hz and following frequency of vibration thereof are considered as static centering and process.
Further, described control parts 7 can have Non-follow control function, and described Non-follow control function may be used for
By controlling described electromagnetic valve 10 to adjust described moving component 5 relative to described under described photoelectricity testing part 2 closed mode
The position of center position 6.
It is arranged such, to facilitate the artificial position regulating moving component, at this moment will close described photoelectricity testing part 2,
Control described electromagnetic valve 10 to adjust the described moving component 5 position relative to described center position 6.
The operation principle of described adjusting means may is that
After described control parts receive the corresponding signal that described photoelectricity testing part 2 sends, control to output it signal
After isolation, conditioning level are amplified, sending to described electromagnetic valve 10, described airbag components 8 is filled by described electromagnetic valve 10
Gas or venting, to change its volume, thus adjust the position of described moving component 5, makes described moving component 5 and described centering
Position 6 aligns.
So far, although those skilled in the art will appreciate that the multiple of the most detailed present invention of illustrate and describing show
Example embodiment, but, without departing from the spirit and scope of the present invention, still can be direct according to present disclosure
Determine or derive other variations or modifications of many meeting the principle of the invention.Therefore, the scope of the present invention is it is understood that and recognize
It is set to and covers other variations or modifications all these.
Claims (9)
1., for a detection device for centering, described detection device is used for detecting whether vibration table moving component (5) aligns it
The center position (6) preset, described detection device includes:
Two photoelectricity testing parts (2), along the direction of reciprocating vibration of described moving component (5) about described center position (6)
Being symmetrical arranged in spacing, whether described photoelectricity testing part (2) is blocked for its light launched of detection in real time, and in real time
Detect its time of being blocked of light launched the most identical with the time not being blocked, to judge described vibration table moving component
(5) dynamic centering is the most accurate, then sends the most different signals；
Vibrating mass (1), is used for blocking the light that two described photoelectricity testing parts (2) are launched, and described vibrating mass (1) is fixed
In moving component (5) place of described vibration table and its be between two described photoelectricity testing parts (2), described vibration section
Part (1) along the greatest length in the direction of reciprocating vibration of described moving component (5) is, described vibrating mass (1) is positioned at two institutes
When stating between photoelectricity testing part (2), it can not block two described photoelectricity testing parts (2) launches greatly enhancing most of light
Degree is the most accurate to judge the static centering of described vibration table moving component (5).
Detection device the most according to claim 1, it is characterised in that described photoelectricity testing part (2) is on-off type photoelectricity
Switch, it has the light source emitter (21) and light source accepter (22) mutually arranged in spacing；
Described vibrating mass (1) projection is configured to baffle arrangement, and described vibrating mass (1) follows described moving component (5) motion
Time, it is through the described light source emitter (21) and described light source accepter (22) of described photoelectricity testing part (2), with resistance
Keep off described light source accepter (22) and receive the light that described light source emitter (21) sends.
Detection device the most according to claim 1 and 2, it is characterised in that described detection device also includes two mounting seats
(3), each described mounting seat (3) is used for fixing a described photoelectricity testing part (2)；And
Fixture (4), described fixture (4) is used for installing to described vibration tablies two described photoelectricity testing parts (2), institute
Stating fixture (4) and offer strip through hole (42) along described direction of vibration, described mounting seat (3) is fixed on institute by securing member
Stating strip through hole (42) place, it is the most described fixing that described strip through hole (42) is used for regulating described photoelectricity testing part (2)
The position of part (4)；
Alternatively, described fixture (4) is L-shaped plate-like piece, and described strip through hole (42) is opened in the perpendicular of described fixture (4)
At straight plate-like portion, the horizontal plate-like portion (41) of described fixture (4) is removably fixed at described vibration table.
4. using the adjusting means detecting device for centering according to any one of claim 1 to 3, its feature exists
In, described adjusting means is used for carrying out centering regulation, including:
Execution unit, is used for the position adjusting described moving component (5) relative to described center position (6), described execution unit
It is able to receive that digital signal, and adjusts described moving component (5) relative to described center position (6) according to corresponding digital signal
Position；And
Controlling parts, have digital signal acquiring and process function, described control parts receive described photoelectricity testing part (2)
The most different signal sent, according to the most different described signal by digital signal acquiring and the backward described execution of process
Parts send the most different digital signals, so that described moving component (5) aligns described center position (6) place.
Adjusting means the most according to claim 4, it is characterised in that described control parts judge described moving component (5)
Aligning described center position (6) and send centering signal afterwards, described control parts can carry out pulse width to described centering signal
Modulation, low-pass filtering and level adjust, and are then forwarded at the coil of described vibration table.
Adjusting means the most according to claim 5, it is characterised in that described control parts have full physical isolation pattern,
Described control parts send before the most different digital signals to described execution unit, and described digital signal is through described control portion
The full physical isolation mode treatment of part, to strengthen the capacity of resisting disturbance of described digital signal.
7. according to the adjusting means according to any one of claim 4 to 6, it is characterised in that described execution unit includes:
Airbag components, described airbag components can be inflated or exit, so that its volume increases or reduces, described air bag
Parts are used for the position adjusting described moving component (5) relative to described center position (6)；
Air pump parts, described air pump parts are for inflating for described airbag components；
Electromagnetic valve, described electromagnetic valve receives the most different digital signal that described control parts send, then according to described phase
Air pump parts described in Digital Signals that should be different are inflated to described airbag components, or it is corresponding to make described airbag components discharge
Gas.
8. according to the adjusting means according to any one of claim 4 to 7, it is characterised in that described control parts can be to institute
Dynamic response made by 2Hz and the following frequency of vibration thereof of stating moving component (5).
9. according to the adjusting means according to any one of claim 4 to 8, it is characterised in that described control parts have manually
Controlling function, described Non-follow control function is used under described photoelectricity testing part (2) closed mode by controlling described electromagnetism
Valve is to adjust the described moving component (5) position relative to described center position (6).
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| Application Number | Priority Date | Filing Date | Title |
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| CN201610792904.1A CN106124150A (en) | 2016-08-31 | 2016-08-31 | A kind of detecting device and using its adjusting means for centering |
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| CN201610792904.1A CN106124150A (en) | 2016-08-31 | 2016-08-31 | A kind of detecting device and using its adjusting means for centering |
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| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
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