CN203438007U - On-side measuring device for electric runout and capable of separating revolution error of main shaft - Google Patents
On-side measuring device for electric runout and capable of separating revolution error of main shaft Download PDFInfo
- Publication number
- CN203438007U CN203438007U CN201320217646.6U CN201320217646U CN203438007U CN 203438007 U CN203438007 U CN 203438007U CN 201320217646 U CN201320217646 U CN 201320217646U CN 203438007 U CN203438007 U CN 203438007U
- Authority
- CN
- China
- Prior art keywords
- sensor
- current vortex
- vortex sensor
- laser displacement
- electricity
- 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.)
- Expired - Fee Related
Links
Images
Abstract
The utility model relates to an on-side measuring device for electric runout and capable of separating revolution error of a main shaft. The outside of a detected revolving body is provided with a laser displacement sensor, a first current vortex sensor and a second current vortex sensor, wherein the first and the second current vortex sensors are arranged on the same circumference with the laser displacement sensor; the circumference shares the same shaft with the detected revolving body; an angle sensor is closely arranged in an axial direction of the second current vortex sensor; all the above sensors are connected with a control module; the control module sends out a signal to a collecting module; and the collecting module is connected with a computer position. By the measuring method for electric runout and separating revolution error of the main shaft, each sensor can be placed in a suitable position by an action of an adjusting device.
Description
Technical field
The utility model relates to accurate on-position measure technical field, especially a kind of electricity of separated spindle rotation error on-position measure device of beating.
Background technology
Electricity (the Electrical Runout that beats, ERO) characterize the inhomogeneities of precision rotating body part (as turbine, generator, internal combustion engine, machine tool chief axis etc. and other large rotor) material electromagnetic property, affecting vibration and the operational reliability of machine, is an important evaluation index of rotor machining quality.API Std API612, API617 have done clearly restriction to the electricity runout error such as beat, and require rotor comprehensively to beat to be no more than 25% or 6.3 μ of vibration peak peak value.Comprehensively beating is the summation that electricity is beated with mechanical run, mechanical run reflection be the machining error of part.The measuring method of mechanical run amount is more, and the control ratio of mechanical run error is easier to.The detection of electricity jerk value mainly adopts current vortex sensor to carry out, and need to coordinate with mechanical run amount synchro measure, due to the existence of machine spindle rotary error, is difficult to reach the high-precision requirement of accurate measurement.At present, machine spindle rotary error is carried out to separation, the runout errors such as on-position measure electricity is beated, mechanical run there is no very ripe effective method and instrument.
The error separating technology that grow up the sixties in 20th century (Error Separation Technique, EST), can separate tested revolution shape error and machine spindle rotary error.Can, not improving under the prerequisite of the former accuracy of manufacture of measuring instrument, increase substantially certainty of measurement thus.At present, conventional turn error separation method has two-point method, line-of-sight course, transposition method etc.In the occasion of macrotype axes series parts on-position measure, due to the restriction of structure and installing space, too much probe is installed and certainly will be caused installing adjustment difficulty.And transposition method complex operation, measuring period in implementation process is long, also has the problems such as harmonic wave inhibition.
Utility model content
The purpose of this utility model is to provide a kind of precision high in order to solve the deficiency of above-mentioned technology, the electricity of the separated spindle rotation error that efficiency is high beat on-position measure device and measuring method.
In order to achieve the above object, the electricity of the separated spindle rotation error that the utility model the is designed on-position measure device of beating, it mainly comprises laser displacement sensor, current vortex sensor and angular transducer, in tested revolving body outside, be provided with laser displacement sensor, the first current vortex sensor and the second current vortex sensor, laser displacement sensor is arranged on the first current vortex sensor and the second current vortex sensor centre position, the first current vortex sensor, the second current vortex sensor and laser displacement sensor are arranged on same circumference, and the first current vortex sensor, the circumference at the second current vortex sensor and laser displacement sensor place is coaxial with tested revolving body, angular transducer and the second current vortex sensor are in the axial direction near setting.Angular transducer, the first current vortex sensor, the second current vortex sensor and laser displacement sensor are all connected with control module, and control module is exported to acquisition module by signal, and acquisition module is connected with upper seat in the plane again.
Be provided with Hall element with the same axial location of laser displacement sensor, on the tested revolving body cross section with Hall element correspondence position, be provided with the mark magnet that can be identified by Hall element.
Above-mentioned all sensors be installed in can radially move and with measuring in the adjusting device that cross section deflection swings, adjusting device is arranged on to be measured on support, adjusting device is comprised of precision displacement table and angular displacement platform.
Side at above-mentioned all the sensors is all connected with the protective device that stops sensor to contact tested revolving body surface, and protective device is protruding circular piece, and is connected on sensor outer housing.
Three displacement transducers can be also an eddy current displacement sensor and two laser displacement sensor combinations, and the second current vortex sensor substitutes with the second laser displacement sensor; Described laser displacement sensor substitutes with pressure-sensitive displacement transducer simultaneously.
The electricity of the resulting separated spindle rotation error of the utility model on-position measure device of beating, it has the following advantages:
1. certainty of measurement is high.The utility model adopts sensor mixing method to carry out the separation of machine spindle rotary error, efficiently solves harmonic wave and suppresses problem, has avoided the impact of the precision of on-position measure machine tool on measurement result own.In addition, the laser displacement sensor that the utility model adopts is at can the reach ± 0.05%F.S. of situation lower linear error of measurement category ± 0.5mm, thereby the linearity error of the mechanical run amount of this sensor measurement is ± 0.5 μ.The linearity error of the comprehensive jerk value that current vortex sensor records is ± 1 μ.The electric jerk value linearity error that analytical calculation draws is ± 1.1 μ, has very little systematic error.
2. efficient measurement in place.Measurement support of the present utility model can be fixed on lathe saddle easily, with knife rest feeding, moves, and can realize convenience, efficient on-position measure, for process provides effective guidance.
3. flexible high.The measuring method that the utility model adopts goes for the detection of the tested rotary part of various sizes, and measuring probe dismounting is flexible, versatility is high, and measuring method has very high flexibility.
Accompanying drawing explanation
Fig. 1 is measurement framework map of the present utility model;
Fig. 2 is installation of sensors schematic diagram of the present utility model;
Fig. 3 is the scheme of installation of laser displacement sensor of the present utility model and Hall element;
Fig. 4 is turn error separation principle figure of the present utility model.
The specific embodiment
Below by embodiment, the utility model will be further described by reference to the accompanying drawings.
Embodiment 1:
As Fig. 1, Fig. 2, Fig. 3, shown in Fig. 4, the electricity of the separated spindle rotation error that the present embodiment the is described on-position measure device of beating, it mainly comprises laser displacement sensor 2, the first current vortex sensor 3, the second current vortex sensor 4 and angular transducer 5, in tested revolving body 1 outside, be provided with laser displacement sensor 2, the first current vortex sensor 3 and the second current vortex sensor 4, laser displacement sensor 2 is arranged on the first current vortex sensor 3 and the second current vortex sensor 4 centre positions, the first current vortex sensor 3, the second current vortex sensor 4 and laser displacement sensor 2 are arranged on same circumference, and the first current vortex sensor 3, the second current vortex sensor 4 is coaxial with tested revolving body 1 with the circumference at laser displacement sensor 2 places, angular transducer 5 and the second current vortex sensor 4 are in the axial direction near layout.Angular transducer 5, the first current vortex sensor 3, the second current vortex sensor 4 are all connected with control module 12 with laser displacement sensor 2, and control module 12 is exported to acquisition module 13 by signal, and acquisition module 13 is connected with upper seat in the plane 14 again.
Be provided with Hall element 6 with the same axial location of laser displacement sensor 2, on the tested revolving body 1 with Hall element 6 correspondence positions, be provided with the mark magnet 7 that can be identified by Hall element 6.
Above-mentioned all sensors be installed in can radially move and with measuring in the adjusting device 11 that cross section deflection swings, adjusting device 11 is arranged on to be measured on support 10, adjusting device 11 is comprised of precision displacement table a and angular displacement platform b.
Side at above-mentioned all the sensors is all connected with the protective device 8 that stops sensor to contact tested revolving body 1 surface, and protective device 8 is protruding circular piece, and is connected on sensor outer housing 9.
The electricity of the separated spindle rotation error on-position measure method of beating, before measurement, tested revolving body 1 stall, installs and measures support 10, and opening device makes each sensor in correct position by adjusting device 11, during measurement, tested revolving body 1 rotation, rotating speed immobilizes, measurement parameter is set in Survey Software, start sensor starts to measure and data acquisition, laser displacement sensor 2, the first current vortex sensor 3, the second current vortex sensor 4, the analog signal that angular transducer 5 gathers, through capture card, carry out A/D conversion, finally become data signal and import host computer into, the pulse signal that Hall element 6 gathers is sent to PLC and counts and process and be sent to host computer, the data analysis that computer is come in to transmission is processed, separated machine spindle rotary error, obtain that electricity is beated and the runout error measurement result of mechanical run, result is measured in finally output.
Specific implementation method: the separated mixing method of error is to use the first current vortex sensor 3, the second current vortex sensor 4 and 5 realizations of an angular transducer separated to the test of morpheme error and spindle rotation error, and can accurately measure desired radio-frequency component.
Existing the first current vortex sensor 3 in electricity is beated extracting method, then increase the same cross-sectional distribution of the second current vortex sensor 4, increase an angular transducer 5 and the second current vortex sensor 4 and axially near distributing, can realize this error separation method.If O is the origin of coordinates, P is a bit on revolving body, comprises workpiece morpheme r (θ) expression for error that mechanical run, electricity are beated, and θ is measurement point P and X-axis angle, and between two sensors, angle is α=90 °.
When turn error is existed, the displacement output valve of the second current vortex sensor 4 and the angle output valve of angular transducer 5 are expressed as D
1(θ) and A
1(θ) have
D
1(θ)＝r(θ)+e
x(θ)
Wherein R is tested revolving body 1 radius.The displacement output valve of the first current vortex sensor 3 is
D
2(θ)＝r(θ-α)+e
y(θ)
With above-mentioned equation, can solve three unknown quantitys: morpheme error r (θ) and spindle rotation error component e
x(θ), e
y(θ), reach the object of error separation.
For the first current vortex sensor 3, before using the actual range finding of sensor, with measuring material, sensor instrument distance and output voltage V are demarcated, obtain nominal data and fit to straight line, in measuring process, tested revolving body 1 material electromagnetic property changes the Voltage-output that the voltage change producing is sneaked into actual physical skew generation.In separation after machine spindle rotary error, with the displacement signal of the first current vortex sensor 3, remove the actual physical deviation that laser displacement sensor 2 records, analyze and obtain the electric jerk value that does not comprise machine spindle rotary error.
Claims (7)
1. the electricity of the separated spindle rotation error on-position measure device of beating, it mainly comprises laser displacement sensor, current vortex sensor and angular transducer, it is characterized in that being provided with laser displacement sensor in tested revolving body outside, the first current vortex sensor and the second current vortex sensor, laser displacement sensor is arranged on the first current vortex sensor and the second current vortex sensor centre position, the first current vortex sensor, the second current vortex sensor and laser displacement sensor are arranged on same circumference, and the first current vortex sensor, the circumference at the second current vortex sensor and laser displacement sensor place is coaxial with tested revolving body, angular transducer and the second current vortex sensor are in the axial direction near layout, angular transducer, the first current vortex sensor, the second current vortex sensor is all connected with control module with laser displacement sensor, control module is exported to acquisition module by signal, acquisition module is connected with upper seat in the plane again.
2. the electricity of the separated spindle rotation error according to claim 1 on-position measure device of beating, it is characterized in that being provided with Hall element with the same axial location of laser displacement sensor, on the tested revolving body with Hall element correspondence position, be provided with the mark magnet that can be identified by Hall element.
3. the electricity of the separated spindle rotation error according to claim 1 and 2 on-position measure device of beating, it is characterized in that above-mentioned all sensors be installed in can radially move and with measuring in the adjusting device that cross section deflection swings, adjusting device is arranged on to be measured on support, and adjusting device is comprised of precision displacement table and angular displacement platform.
4. the electricity of the separated spindle rotation error according to claim 1 and 2 on-position measure device of beating, is characterized in that being all connected with at the side of above-mentioned all the sensors the protective device that stops sensor to contact tested revolving body surface.
5. the electricity of the separated spindle rotation error according to claim 4 on-position measure device of beating, is characterized in that protective device is protruding circular piece, and is connected on sensor outer housing.
6. the electricity of the separated spindle rotation error according to claim 5 on-position measure device of beating, is characterized in that the second described current vortex sensor is alternative with the second laser displacement sensor.
7. the electricity of the separated spindle rotation error according to claim 5 on-position measure device of beating, is characterized in that described laser displacement sensor is alternative with pressure-sensitive displacement transducer.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201320217646.6U CN203438007U (en) | 2013-04-25 | 2013-04-25 | On-side measuring device for electric runout and capable of separating revolution error of main shaft |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201320217646.6U CN203438007U (en) | 2013-04-25 | 2013-04-25 | On-side measuring device for electric runout and capable of separating revolution error of main shaft |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN203438007U true CN203438007U (en) | 2014-02-19 |
Family
ID=50089081
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201320217646.6U Expired - Fee Related CN203438007U (en) | 2013-04-25 | 2013-04-25 | On-side measuring device for electric runout and capable of separating revolution error of main shaft |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN203438007U (en) |
-
2013
- 2013-04-25 CN CN201320217646.6U patent/CN203438007U/en not_active Expired - Fee Related
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN103213033B (en) | The electricity separating spindle rotation error is beated on-position measure device and measuring method | |
| CN103983227B (en) | A kind of eccentric spindle rotation error measuring method and device of being removably installed | |
| CN101458157B (en) | Dynamic performance integrated test experimental device for high speed principal axis | |
| CN108020409B (en) | A kind of 4 points of dynamic measurements of spindle rotation error and separation method | |
| CN105234745B (en) | Machine tool spindle thermal error, deviation from circular from are separated and processing method with turn error | |
| CN104075677A (en) | Method and system for measuring concentricity and tip clearance of rotor and stator of aero-engine | |
| CN102359759B (en) | Measuring system for electrical runout amount of revolving body | |
| CN103759941A (en) | Precise main shaft rotation accuracy detecting device and method | |
| CN202903177U (en) | Laser range finder | |
| CN103411764B (en) | A kind of inner rotor type gyro motor proving installation | |
| CN102937409A (en) | Polar coordinate gear measurement center and zero calibrating method thereof | |
| CN105043317A (en) | Device and method for measuring dynamic revolution error of main shaft of set of revolution equipment | |
| CN102175207A (en) | High-accuracy roundness detection method based on combination of reverse and multi-sensor methods | |
| CN202255414U (en) | Tilt angle calibration device | |
| CN203908522U (en) | Spindle revolution error measuring device capable of separating mounting eccentricity | |
| CN203824546U (en) | Device for calibrating blade tip gap sensor | |
| CN102359755B (en) | Method for detecting pitch error of ABS gear ring by magnetic induction | |
| CN203349773U (en) | Testing device for radial revolution error and inclination angle revolution error of main shaft of precise centrifuge | |
| CN203438007U (en) | On-side measuring device for electric runout and capable of separating revolution error of main shaft | |
| CN203587021U (en) | Roundness error detector | |
| CN106052956A (en) | Force-hammer sensitivity automatic calibration device and method | |
| CN202216664U (en) | System for measuring electrical runout of revolving body | |
| CN102699766A (en) | Method for measuring distance between cutter mounting end surface and rotating center during numerical control machining | |
| CN114838650B (en) | Displacement sensor calibration device and method based on turntable | |
| CN102707092A (en) | Calibration method for single-beam laser tachymeter based on angular rate table |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20140219 Termination date: 20210425 |