CN206311086U - A kind of great-scale displacement sensor calibrating installation - Google Patents
A kind of great-scale displacement sensor calibrating installation Download PDFInfo
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- CN206311086U CN206311086U CN201621225223.9U CN201621225223U CN206311086U CN 206311086 U CN206311086 U CN 206311086U CN 201621225223 U CN201621225223 U CN 201621225223U CN 206311086 U CN206311086 U CN 206311086U
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Abstract
The utility model discloses great-scale displacement sensor calibrating installation, including lifting fixed station, three-dimensional fine-tuning platform, step motion control platform, power supply, controller and host computer；Step motion control platform includes pedestal, grating rule displacement sensor, progressive screw, stepping guide rail, stepping fixed station and stepper motor, stepper motor is fixed on one end of pedestal, stepping guide rails assembling is above pedestal, the two ends of progressive screw are arranged on above pedestal and progressive screw and stepping guide rail parallel, stepper motor is connected with progressive screw, progressive screw is connected with stepping fixed station, stepping fixed station is located above progressive screw, stepping fixed station is connected with stepping slide, lifting fixed station is fixed on the other end of pedestal, three-dimensional fine-tuning platform is fixed on stepping fixed station, the tested sensor that the side of three-dimensional fine-tuning platform is connected with target and the target is clamped towards sensor fixed support；The utility model meets the calibration of polymorphic type displacement transducer, and calibration result is accurate, multiple functional.
Description
Technical field
The utility model is related to pick up calibration field, more particularly to a kind of great-scale displacement sensor calibrating installation.
Background technology
In recent years, developing rapidly with China's economy, the demand of the energy constantly expands, and wherein power industry is particularly dashed forward
Go out, large sized unit is continued to bring out, the fast development of nuclear power, at the same time, the safe operation to unit proposes higher wanting
Ask, the information gathering density and precision to the running of equipment are continued to increase, and there are more demands to the technology of sensor.
Turbine Safety monitoring system (Turbine Supervisor Instrument- TSI), TSI is to detect, protect
Shield power plant main equipment（Turbo-generator Set）The visual plant of safe operation, it can continuously, accurate, reliable surveillance unit opening
How important parameter change in dynamic, operation and stopping process, ensure its accurate, reliable operation, to its verifying work
It is also proposed requirement higher, while there is standard higher to the degree requirement of the Automated condtrol of machine, monitoring point it is big
Amount increases, and the high-accuracy measuring instrument instrument of great-scale displacement is widely used in monitoring of equipment.Such as bypass stroke sensor
（100mm）, lofty tone stroke sensor（160mm）, low-key stroke sensor（300mm）And various displacement stroke feedback devices etc.,
And it is all higher to certainty of measurement requirement.
At present, the equipment that calibration of the in the market to great-scale displacement measuring instrumentss is used only considers its specific aim, i.e., only
For certain types of instrument, function is relatively simple, and resource utilization is low, does not meet conventional displacement transducer and wide range is passed
The integrated application equipment of sensor verification, and can there are some errors, measurement in the result of the calibration of existing displacement measuring instrument
Data are inaccurate, also without a kind of verification standard device of ready-made available high degree of automation.Therefore, in order to improve and
The detectability and benefit in laboratory are improved, a kind of great-scale displacement measurement of advanced multi-purpose type high degree of automation is developed
Calibrating installation is very important.
Utility model content
Technical problem to be solved in the utility model is directed to above-mentioned the deficiencies in the prior art and provides a kind of wide range position
Displacement sensor calibrating installation, this great-scale displacement sensor calibrating installation meets the calibration of polymorphic type displacement transducer, calibration knot
Fruit is accurate, multiple functional.
To realize above-mentioned technical purpose, the technical scheme that the utility model is taken is：
A kind of great-scale displacement sensor calibrating installation, including lifting fixed station, three-dimensional fine-tuning platform, step motion control platform, electricity
Source, controller and host computer；
The step motion control platform includes pedestal, grating rule displacement sensor, progressive screw, stepping guide rail, stepping fixed station
And stepper motor, the stepper motor is fixed on one end of pedestal, the stepping guide rails assembling above pedestal, the stepping
The two ends of screw rod are arranged on above pedestal and the progressive screw and stepping guide rail parallel, the stepping by T-shaped bearing block
Motor is connected with progressive screw and the stepper motor is used to drive progressive screw to rotate, the progressive screw and stepping fixed station
Connect and the progressive screw is used to drive stepping fixed station to move horizontally, the stepping fixed station is located at the progressive screw
Above, the stepping fixed station is connected with the stepping slide and the stepping fixed station is located above stepping guide rail,
The grating rule displacement sensor include scale grating and grating reading head, the scale grating be fixed on pedestal and with it is described
Stepping guide rail parallel, the grating reading head is fixed on the stepping fixed station；
The lifting fixed station is fixed on the other end of pedestal, and the lifting fixed station includes lifting knob, vertical lift
Platform and sensor fixed support, the lifting knob are arranged on the side of vertical lift platform and for the height of adjusting vertical lifting platform
Degree, the sensor fixed support is fixed on above the vertical lift platform and the sensor fixed support is used to clamp quilt
Survey sensor；
The three-dimensional fine-tuning platform is fixed on the stepping fixed station, the side of the three-dimensional fine-tuning platform be connected with target and
The tested sensor that the target is clamped towards the sensor fixed support；
The power supply is electrically connected with controller, host computer, stepper motor, grating rule displacement sensor and tested sensor respectively
Connect, the host computer is electrically connected with the controller, the controller is electrically connected with the stepper motor, the grating scale displacement
Sensor is electrically connected with the controller, and the tested sensor is electrically connected with the controller.
Used as the further improved technical scheme of the utility model, the step motion control platform also includes limit switch, described
Limit switch is arranged on the two ends of the pedestal, and the limit switch is electrically connected with the controller and the stepper motor respectively
Connect.
Used as the further improved technical scheme of the utility model, the step motion control platform also includes being manually stepped knob,
Described to be manually stepped same one end that knob is fixed on pedestal with the stepper motor, the knob that is manually stepped is with the stepping spiral shell
Bar is connected and the knob that is manually stepped is for driving the progressive screw to rotate.
Used as the further improved technical scheme of the utility model, the stepping guide rail is line slideway, and the straight line is led
Rail is two, and two line slideways are arranged on above pedestal and respectively positioned at the both sides of the progressive screw, two institutes
State line slideway parallel with the progressive screw.
Used as the further improved technical scheme of the utility model, the line slideway includes sliding block and track, the cunning
Block is fixedly connected with the bottom of the stepping fixed station, and the sliding block is mobile so as to realize that the stepping fixed station exists in orbit
Moved on the line slideway.
Used as the further improved technical scheme of the utility model, the progressive screw is ball screw, the ball spiral shell
Bar is provided with the nut being engaged, and the bottom of the stepping fixed station is connected by nut seat with the nut.
Used as the further improved technical scheme of the utility model, the stepper motor passes through shaft coupling with the progressive screw
Device is connected.
Used as the further improved technical scheme of the utility model, one end of the pedestal is fixed with bench vice, the bench vice
With the lifting fixed station in same one end of pedestal, the bench vice is used to clamp tested sensor.
Used as the further improved technical scheme of the utility model, the three-dimensional fine-tuning platform includes that vernier knob, fine setting are flat
Platform and knob fasten nut, and the vernier knob is used to finely tune the fine adjustment stage in the position of three-dimensional, and the knob is consolidated
Tight nut is located on vernier knob and for fastening the vernier knob, and the target is fixed on the side of the fine adjustment stage.
Controller of the invention and host computer can realize precisely, high-efficient automatic control；Using accurate stepper motor, enter
The accurate ball screw of mouth drives, and can efficiently control positioning precision and absolute fix precision, so as to improve the equipment work longevity
Life；The present invention crosses pitching and the beat of stepping guide rail reduction stepping fixed station, make the linearity that stepping fixed station is moved with it is parallel
Degree has larger guarantee, and stepping guide rail uses the line slideway of precision linear, it is ensured that the measurement result of grating rule displacement sensor
Accuracy, the present invention is designed with anti-loose structure, and such as knob fastens nut effectively prevents vernier knob from loosening, so as to prevent target
Loosen, prevent the measurement result of tested sensor from there is error；The present invention is designed with prevents stepping from fixing the knot that stage translation overflows
Structure, such as limit switch, so as to ensure the positioning precision and absolute fix precision of stepping fixed station of the present invention, are particularly suitable for high speed past
Use again；The present invention, as displacement calibration feedback, is worked using the optical principle of grating using grating rule displacement sensor
Measurement feedback device, is effectively guaranteed the accuracy of the displacement of stepping fixed station movement, prevents stepping fixed station from needing translation
Displacement and the displacement of actual translation exist and the calibration of sensor is tested caused by error there is error, when stepping fixed station is needed
When the displacement to be translated is equal with the displacement of actual translation, the displacement and stepping of tested sensor detection target translation are just can guarantee that
Fixed station needs the displacement of translation equal, could finally ensure the current signal of tested sensor reality output in the absence of error,
So as to carry out more accurate calibration；The displacement of the actual translation of target and the displacement of the actual translation of stepping fixed station are to remain one
Cause；The present invention is applicable the displacement that range is 300mm, and sensor fixed support and bench vice are applied to the tested of clamping different model
The selection of sensor and grating rule displacement sensor has been applicable the calibration of wide range and polymorphic type displacement transducer；The present invention
Can strobe pulse number, millimeter, four kinds of different linear modules of micron as needed, and realize that the inside of controller is converted automatically,
Using more convenient；The present invention has closed loop location control function, and Real-time Feedback is realized by grating rule displacement sensor, makes stepping
The position adjustment of fixed station is more accurate with positioning.Controller of the present invention can be used RS232, USB2.0 communication interfaces, setting
Parameter can also be stored, and power down is not lost, easy operating process.Can be set to for optional position by the setting of controller by the present invention
User job origin, the convenient setting of zero-bit can simplify the operation of user.The present invention has automatically and manually participate in control stepping
The both of which of fixed stage translation, each pattern is all a complete closed-loop system, wherein the electronic automatic mold of stepper motor
Formula：Quick to navigate to target location, a plurality of tasks carrying accelerates experiment process；Wherein it is manually stepped the manual participation mould of knob
Formula：Reciprocal in multiple target locations positioning suitable for those needs, one-touch operation can reach target location.
Brief description of the drawings
Fig. 1 is the structural representation of lifting fixed station of the present utility model, three-dimensional fine-tuning platform and step motion control platform.
Fig. 2 is the structure top view of step motion control platform of the present utility model.
Fig. 3 is the structural representation of lifting fixed station of the present utility model.
Fig. 4 is the structural representation of three-dimensional fine-tuning platform of the present utility model.
Fig. 5 is general structure schematic diagram of the present utility model.
Fig. 6 is circuit theory schematic diagram of the present utility model.
Specific embodiment
Specific embodiment of the present utility model is further illustrated below according to Fig. 1 to Fig. 6：
Referring to Fig. 1, Fig. 2 and Fig. 5, a kind of great-scale displacement sensor calibrating installation, including lifting fixed station 3, three-dimensional are micro-
Adjust platform 7, step motion control platform, power supply, controller 18 and host computer 19；The step motion control platform includes that pedestal 1, grating scale displacement are passed
Sensor, progressive screw 5, stepping guide rail 6, stepping fixed station 9 and stepper motor 11, the stepper motor 11 are fixed on pedestal 1
One end, the stepping guide rail 6 is arranged on above pedestal 1, and the two ends of the progressive screw 5 are arranged on base by T-shaped bearing block
Above seat 1 and the progressive screw 5 is parallel with stepping guide rail 6, have between the bottom of the progressive screw 5 and pedestal 1 empty
Gap, progressive screw 5 by the rotation in T-shaped bearing block so that from pedestal 1 rotate, the stepper motor 11 with step
Enter screw rod 5 connect and the stepper motor 11 be used for drive progressive screw 5 to rotate, the progressive screw 5 connects with stepping fixed station 9
Connect and the progressive screw 5 is used to drive stepping fixed station 9 to move horizontally, the stepping fixed station 9 is located at the progressive screw 5
Above, the stepping fixed station 9 is slidably connected with the stepping guide rail 6 and the stepping fixed station 9 is located at stepping guide rail 6
Above, stepping guide rail 6 is the stably translational support of stepping fixed station 9, it is ensured that the translated linear degree of stepping fixed station 9；The light
Grid rule displacement sensor include scale grating 4 and grating reading head, the scale grating 4 be fixed on pedestal 1 and with the step
Enter guide rail 6 parallel, the grating reading head is fixed on the stepping fixed station 9；Referring to Fig. 3, the lifting fixed station 3 is fixed
In the other end of pedestal 1, the lifting fixed station 3 includes lifting knob 17, vertical lift platform 2 and sensor fixed support 16,
The lifting knob 17 is arranged on the side of vertical lift platform 2 and for the height of adjusting vertical lifting platform 2, and the sensor is consolidated
Fixed rack 16 is fixed on above the vertical lift platform 2 and the sensor fixed support 16 is used to clamp tested sensor；
Referring to Fig. 4, the three-dimensional fine-tuning platform 7 is fixed on the stepping fixed station 9, and the side of the three-dimensional fine-tuning platform 7 is connected with target
The tested sensor that mark 14 and the target 14 are clamped towards the sensor fixed support 16；The power supply respectively with controller
18th, host computer 19, stepper motor 11, grating rule displacement sensor and tested sensor electrical connection, the host computer 19 with it is described
Controller 18 is electrically connected, and the controller 18 is electrically connected with the stepper motor 11, the grating rule displacement sensor with it is described
Controller 18 is electrically connected, and the tested sensor is electrically connected with the controller 18, as shown in Figure 6.
In the present embodiment, grating rule displacement sensor feeds back as displacement correction, and grating rule displacement sensor is to utilize light
The measurement feedback device of the optical principle work of grid.Grating rule displacement sensor is usually applied to the closed loop servo system of Digit Control Machine Tool
In system, can be used as the detection of straight-line displacement or angular displacement.The signal of its measurement output is digit pulse, with detection range
Greatly, accuracy of detection is high, the characteristics of fast response time.
In the present embodiment, referring to Fig. 1 and Fig. 2, the step motion control platform also includes limit switch 13, the limit switch 13
Installed in the two ends of the pedestal 1, the limit switch 13 is connected between the controller 18 and the stepper motor 11.Institute
Limit switch 13 is stated for controlling the scope of the stepping of stepper motor 11, it is spacing when stepping fixed station 9 moves to limit switch 13
Switch 13 detects the connection that can be disconnected between the controller 18 and the stepper motor 11 after signal, and controller 18 stops control
Stepper motor processed 11, progressive screw 5 stops the rotation, and stepping fixed station 9 stops translation, therefore the effect of limit switch 13 is anti-
Halt to be translated into fixed station 9 and overflow.
In the present embodiment, referring to Fig. 1 and Fig. 2, the step motion control platform also includes being manually stepped knob 12, the manual step
Enter same one end that knob 12 is fixed on pedestal 1 with the stepper motor 11, it is described to be manually stepped knob 12 with the progressive screw 5
The connection and knob 12 that is manually stepped for driving the progressive screw 5 to rotate manually, progressive screw 5 has rotarily driven step
Enter the translation of fixed station 9, it is described to be manually stepped the supplement that knob 12 is stepper motor 11, it is also possible to adjust stepping fixed station manually
9 horizontal level.
In the present embodiment, the stepping guide rail 6 is line slideway, and the line slideway is two, and two straight lines are led
Rail is arranged on above pedestal 1 and respectively positioned at the both sides of the progressive screw 5, two line slideways with the stepping
Screw rod 5 is parallel.
In the present embodiment, the line slideway includes sliding block and track, the bottom of the sliding block and the stepping fixed station 9
It is fixedly connected, the sliding block is mobile so as to realize that the stepping fixed station 9 is moved on the line slideway in orbit, straight line
Guide rail ensure that the translated linear degree of stepping fixed station 9.Pitching and the beat of stepping fixed station 9 are reduced, makes stepping fixed station 9
Motion linearity and the depth of parallelism have larger guarantee, so as to ensure the utility model repetitive positioning accuracy and absolute fix precision
So as to complete accurately to correct.
In the present embodiment, the progressive screw 5 is ball screw, and the ball screw is provided with the nut being engaged, institute
The bottom for stating stepping fixed station 9 is connected by nut seat with the nut.The translation for having rotarily driven nut of ball screw, and
The translation of stepping fixed station 9 has been driven eventually through nut seat；Ball screw can efficiently control the positioning of stepping fixed station 9
Precision and absolute fix precision, also improve working life of the present utility model.
In the present embodiment, the stepper motor 11 is connected with the progressive screw 5 by shaft coupling.
In the present embodiment, referring to Fig. 1, one end of the pedestal 1 is fixed with bench vice 15, and the bench vice 15 is solid with the lifting
Platform 3 is determined in same one end of pedestal 1, and the bench vice 15 is used to clamp tested sensor.The function of bench vice 15 fixes branch with sensor
Frame 16 is identical, for the tested sensor such as fixed displacement measuring instrumentss or other fixtures.Target 14 in the present embodiment with it is described
Three-dimensional fine-tuning platform 7 is flexibly connected, and the different model according to tested sensor is flexibly installed, it is necessary to during with target 14, by target
Mark 14 is connected with the three-dimensional fine-tuning platform 7, it is not necessary to during with target 14, target 14 is separated with the three-dimensional fine-tuning platform 7；Sensing
16 points of device fixed support is the forms such as circular hole, corner apertures, mechanical arm, and the multi-form and bench vice 15 of sensor fixed support 16 are fitted
Tested sensor for clamping different model, therefore the utility model meets the calibration of polymorphic type displacement transducer.
In the present embodiment, the three-dimensional fine-tuning platform 7 includes vernier knob 10, fine adjustment stage and knob fastens nut 8, described
Vernier knob 10 is used to finely tune the fine adjustment stage in the position of three-dimensional, and the knob fastens nut 8 and is located at vernier knob
On 10 and for fastening the vernier knob 10, the target 14 is fixed on the side of the fine adjustment stage；The knob is fastened
The design of nut 8 has the effect for preventing vernier knob 10 from loosening, and effectively prevents axial float, so as to ensure target 14 in translation
When will not play in the other direction, it is ensured that the displacement of tested sensor detection of the present utility model is accurate.
The specific operation principle of the utility model is：By finely tuning the three-dimensional fine-tuning platform 7, face the front of target 14
It is tested sensor and target 14 is vertical with stepping guide rail 6, rotation and lifting knob 17, the height for being vertically moved up or down platform 2 there occurs change,
The final probe of tested sensor made on sensor fixed support 16 is maintained on sustained height with the center of target 14, described
Power supply is controller 18, host computer 19, stepper motor 11, grating rule displacement sensor and tested sensor provide electric energy, control
Device 18 presets the size that stepping fixed station 9 needs the displacement of translation, and host computer 19 sends control command to controller 18, control
Device processed 18 is started working；Controller 18 needs the size of the displacement of translation to send control according to stepping fixed station 9 set in advance
Signal is rotated to stepper motor 11, stepper motor 11 according to the control instruction of controller 18, and stepper motor 11 passes through shaft coupling
Device is rotated by driving progressive screw 5, and progressive screw 5 drives stepping fixed station 9 to be translated on stepping guide rail 6, grating scale displacement
Sensor detects the displacement of the actual translation of stepping fixed station 9 and transmission is displaced to controller 18；The controller 18 consolidates stepping
Determine the displacement of the actual translation of platform 9 and presetting stepping fixed station 9 needs the size of the displacement of translation to be contrasted and to stepping
The displacement of the actual translation of fixed station 9 is modified, and specific amendment content is：If the displacement of the actual translation of stepping fixed station 9 and pre-
First setting stepping fixed station 9 needs the size of the displacement of translation unequal, i.e., stepper motor 11 is rotated has error so as to cause step
The displacement for entering the actual translation of fixed station 9 has error, then controller 18 controls stepper motor 11 so as to correct stepper motor 11 again
The error of rotation, the displacement error of the actual translation of amendment stepping fixed station 9, finally makes the displacement of the actual translation of stepping fixed station 9
With preset stepping fixed station 9 need translation displacement it is equal in magnitude untill, controller 18 stop control stepper motor 11；
What the real-time reality of transmission stepping fixed station 9 of the controller 18 was translated is displaced to host computer 19, and host computer 19 shows stepping in real time
The displacement of the actual translation of fixed station 9；The concurrent power transmission stream letter of the displacement of the translation of target 14 described in the tested sensor real-time detection
Number to controller 18, the controller 18 receives the current signal that the tested sensor sends and extracts and passes through step（3）Repair
The current signal that tested sensor after just sends, the controller 18 judges to be fixed when stepping by being tested the model of sensor
The displacement of the actual translation of platform 9 with preset stepping fixed station 9 need translation displacement it is equal in magnitude when the tested sensing
The standard current signal that device should send, the controller 18 sends standard current signal and by step（3）Revised quilt
The current signal of the actual transmission of sensor is surveyed to host computer 19；The host computer 19 is according to the size of standard current signal and tested
Relation between the size of the current signal of the actual transmission of sensor so as to be calibrated to tested sensor, if normalized current
The size of signal and the current signal of the actual transmission of tested sensor it is equal in magnitude, then being tested sensor need not calibrate, such as
The cause not of uniform size of the size of fruit standard current signal and the current signal of the actual transmission of tested sensor, the analysis of host computer 19 two
The relation of person, so as to the size of the current signal to being tested sensor reality output is calibrated.
The utility model reduces the pitching of stepping fixed station 9 by stepping guide rail 6 using overall numerical control machining center technology
And beat, making the linearity and the depth of parallelism of the motion of stepping fixed station 9 has larger guarantee, and stepping guide rail 6 is straight using precision linear
Line guide rail, the utility model is designed with anti-loose structure, and such as knob fastens nut 8 effectively prevents vernier knob 10 from loosening, this reality
Having with new design prevents the structure of the translation spilling of stepping fixed station 9, such as limit switch 13, so as to ensure the utility model stepping
The positioning precision and absolute fix precision of fixed station 9, are particularly suitable for back and forth using at a high speed；The utility model uses grating scale displacement
Sensor, as displacement calibration feedback, is the measurement feedback device worked using the optical principle of grating, is effectively guaranteed step
Enter the accuracy of the displacement of the movement of fixed station 9, prevent stepping fixed station 9 from needing the displacement of translation and the displacement of actual translation to exist
There is error in the calibration that sensor is tested caused by error, when stepping fixed station 9 needs the displacement and actual translation of translation
When displacement is equal, just can guarantee that the displacement of the tested sensor detection translation of target 14 needs the displacement of translation with stepping fixed station 9
It is equal, could finally ensure the current signal of tested sensor reality output in the absence of error, so as to carry out more accurate calibration；
The displacement of the actual translation of target 14 is always consistent with the displacement of the actual translation of stepping fixed station 9；Tested sensor
The different parameter for causing tested sensor of model is different, and parameter is exactly that the shift value of detection is converted to electricity by tested sensor
The respective value of the specific conversion of flow valuve is different, and controller 18 is according to the signal and Parameter analysis of tested sensor when stepping is fixed
The displacement of the actual translation of platform 9 with preset stepping fixed station 9 need translation displacement it is equal in magnitude when the tested sensing
The standard current signal that device should send, standard current signal and tested sensing that controller 18 should send tested sensor
The current signal of the actual transmission of device is transported to host computer 19, and host computer 19 is calibrated, therefore the utility model calibration is very accurate
Really.The utility model meets the requirement jointly controlled to great-scale displacement sensor calibrating installation, and the utility model is applicable
Range is the displacement of 300mm, sensor fixed support 16 and bench vice 15 be applied to clamping different model tested sensor and
The selection of grating rule displacement sensor has been applicable the calibration of wide range and polymorphic type displacement transducer；The utility model can basis
Strobe pulse number, millimeter, four kinds of different linear modules of micron are needed, and realizes that the inside of controller 18 is converted automatically, used
It is more convenient；The utility model has closed loop location control function, and Real-time Feedback is realized by grating rule displacement sensor, makes stepping
The position adjustment of fixed station 9 is more accurate with positioning.The utility model can set to speed, step units and relevant parameter respectively
Put, controller 18 can be used RS232, USB2.0 communication interfaces, the parameter of setting can also be stored, and power down is not lost, easy behaviour
Make process.Optional position can be set to user job origin by the utility model by the setting of controller 18, and zero-bit conveniently sets
Surely the operation of user can be simplified.The utility model has the both of which for automatically and manually participating in the translation of control stepping fixed station 9,
Each pattern is all a complete closed-loop system, wherein the electronic automatic mode of stepper motor 11：It is quick to navigate to target position
Put, a plurality of tasks carrying, accelerate experiment process；Wherein it is manually stepped the manual participation pattern of knob 12：Suitable for those needs
It is reciprocal to reach target location by multiple target locations positioning, one-touch operation.
Protection domain of the present utility model includes but is not limited to embodiment of above, and protection domain of the present utility model is weighing
Sharp claim is defined, and any replacement being readily apparent that to those skilled in the art that this technology is made, deformation, improvement each fall within
Protection domain of the present utility model.
Claims (9)
1. a kind of great-scale displacement sensor calibrating installation, it is characterised in that：Including lifting fixed station, three-dimensional fine-tuning platform, stepping
Console, power supply, controller and host computer；
The step motion control platform includes pedestal, grating rule displacement sensor, progressive screw, stepping guide rail, stepping fixed station and step
Stepper motor, the stepper motor is fixed on one end of pedestal, the stepping guide rails assembling above pedestal, the progressive screw
Two ends be arranged on above pedestal by T-shaped bearing block and the progressive screw and stepping guide rail parallel, the stepper motor
It is connected with progressive screw and the stepper motor is used to drive progressive screw to rotate, the progressive screw is connected with stepping fixed station
And the progressive screw is used to drive stepping fixed station to move horizontally, the stepping fixed station is located at the upper of the progressive screw
Face, the stepping fixed station is connected with the stepping slide and the stepping fixed station is located above stepping guide rail, institute
Grating rule displacement sensor is stated including scale grating and grating reading head, the scale grating be fixed on pedestal and with the step
Enter guide rail parallel, the grating reading head is fixed on the stepping fixed station；
The lifting fixed station is fixed on the other end of pedestal, the lifting fixed station include lifting knob, vertical lift platform and
Sensor fixed support, the lifting knob is arranged on the side of vertical lift platform and for the height of adjusting vertical lifting platform,
The sensor fixed support is fixed on above the vertical lift platform and the sensor fixed support is tested for clamping
Sensor；
The three-dimensional fine-tuning platform is fixed on the stepping fixed station, and the side of the three-dimensional fine-tuning platform is connected with target and described
The tested sensor that target is clamped towards the sensor fixed support；
The power supply is electrically connected with controller, host computer, stepper motor, grating rule displacement sensor and tested sensor respectively,
The host computer is electrically connected with the controller, and the controller is electrically connected with the stepper motor, and the grating scale displacement is passed
Sensor is electrically connected with the controller, and the tested sensor is electrically connected with the controller.
2. great-scale displacement sensor calibrating installation according to claim 1, it is characterised in that：The step motion control platform is also
Including limit switch, the limit switch is arranged on the two ends of the pedestal, the limit switch respectively with the controller and
The stepper motor electrical connection.
3. great-scale displacement sensor calibrating installation according to claim 1, it is characterised in that：The step motion control platform is also
It is described to be manually stepped same one end that knob is fixed on pedestal with the stepper motor, the manual step including being manually stepped knob
Enter that knob is connected with the progressive screw and the knob that is manually stepped is for driving the progressive screw to rotate.
4. great-scale displacement sensor calibrating installation according to claim 1, it is characterised in that：The stepping guide rail is straight
Line guide rail, the line slideway is two, and two line slideways are arranged on above pedestal and are located at the stepping respectively
The both sides of screw rod, two line slideways are parallel with the progressive screw.
5. great-scale displacement sensor calibrating installation according to claim 4, it is characterised in that：The line slideway includes
Sliding block and track, the sliding block are fixedly connected with the bottom of the stepping fixed station, and the sliding block is mobile so as to real in orbit
The existing stepping fixed station is moved on the line slideway.
6. great-scale displacement sensor calibrating installation according to claim 1, it is characterised in that：The progressive screw is rolling
Pearl screw rod, the ball screw is provided with the nut being engaged, and the bottom of the stepping fixed station passes through nut seat and the spiral shell
Mother's connection.
7. great-scale displacement sensor calibrating installation according to claim 1, it is characterised in that：The stepper motor and institute
Progressive screw is stated to be connected by shaft coupling.
8. great-scale displacement sensor calibrating installation according to claim 1, it is characterised in that：One end of the pedestal is consolidated
Surely there is bench vice, with the lifting fixed station in same one end of pedestal, the bench vice is used to clamp tested sensor the bench vice.
9. great-scale displacement sensor calibrating installation according to claim 1, it is characterised in that：The three-dimensional fine-tuning platform bag
Include vernier knob, fine adjustment stage and knob and fasten nut, the vernier knob is used to finely tune the fine adjustment stage in three-dimensional
Position, the knob fastens nut and is located on vernier knob and for fastening the vernier knob, and the target is fixed on institute
State the side of fine adjustment stage.
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| CN201621225223.9U CN206311086U (en) | 2016-11-15 | 2016-11-15 | A kind of great-scale displacement sensor calibrating installation |
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