CN205352345U - Straight line and angle displacement sensor measurement device - Google Patents
Straight line and angle displacement sensor measurement device Download PDFInfo
- Publication number
- CN205352345U CN205352345U CN201620042567.XU CN201620042567U CN205352345U CN 205352345 U CN205352345 U CN 205352345U CN 201620042567 U CN201620042567 U CN 201620042567U CN 205352345 U CN205352345 U CN 205352345U
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- displacement sensor
- angle displacement
- straight line
- measurement apparatus
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Abstract
The utility model provides a straight line and angle displacement sensor measurement device, includes servo motor, ball, nut slider, lead screw fixing base, shaft coupling, angle displacement sensor, standard grating chi and is surveyed sharp displacement sensor, ball passes nut slider, and install respectively at both ends the lead screw fixing base, servo motor with angle displacement sensor passes through the shaft coupling install respectively in on the lead screw fixing base, ball is rotatory to be driven angle displacement sensor simultaneous movement, standard grating chi with survey the linear displacement sensor quilt through the magnetic force of connecting magnet respectively the nut slider drive. The utility model discloses establishhing comprehensive properties's linear displacement and angle displacement sensor's measuring device, can realizing that high accuracy and high -resolution measure general linear displacement sensor and angle displacement sensor, reduce cost takes up an area of the space with practicing thrift simultaneously.
Description
Technical field
This utility model relates to field of measuring technique, particularly relates to a kind of straight line and angle displacement sensor measurement apparatus.
Background technology
In commercial Application; rectilinear motion and rotary motion displacement transducer would generally be used in a large number; these sensors have the electronic ruler based on rheostatic type and angular transducer, magnetostrictive displacement sensor, inductance type differential transformer, based on the angular transducer etc. of photoelectric coded disk; these displacement transducers need after using certain time again to demarcate and detection; obtain static characteristic and the dynamic characteristic of displacement transducer, and this detection needs specialized instrument and equipment.Simultaneously, in teaching practice process, also need specialized instrument and equipment to carry out experimental teaching and displacement transducer is carried out demarcation to explain static demarcating process, strengthen the understanding of the characteristics such as sensitivity, resolution, the linearity and hysterisis error, simultaneously need to understood the dynamic characteristic of sensor by dynamic calibration；But usual employing needs linear displacement transducer and angle displacement sensor two to overlap instrument to be realized, and adds cost and takes up an area space, detection difficulty is relatively big, step complexity.
Summary of the invention
The purpose of this utility model is in that to propose a kind of straight line and angle displacement sensor measurement apparatus reducing cost and saving occupation of land space.
For reaching this purpose, this utility model by the following technical solutions:
A kind of straight line and angle displacement sensor measurement apparatus, including servomotor, ball-screw, nut slider, the fixing seat of leading screw, shaft coupling, angle displacement sensor, master grating chi and tested linear displacement transducer；
The described ball-screw described nut slider of traverse, and two ends are respectively mounted the fixing seat of described leading screw, described servomotor and described angle displacement sensor are respectively arranged on the fixing seat of described leading screw by described shaft coupling, and described ball-screw rotarily drives described angle displacement sensor and is synchronized with the movement；Described master grating chi and described tested linear displacement transducer are driven by described nut slider respectively through the magnetic force connecting Magnet.
Further illustrating, described ball-screw rotarily drives described angle displacement sensor and is synchronized with the movement, and described nut slider detects the motion of described angle displacement sensor by the detection head of master grating chi described in the magnetically-actuated of connection Magnet；
Described linear displacement transducer by connect Magnet magnetic force and by described nut slider actuation movement, the detection head of described master grating chi and described tested linear displacement transducer is driven by described nut slider be synchronized with the movement respectively through the magnetic force connecting Magnet, detects the motion of described tested linear displacement transducer.
Further illustrating, the described leading screw of described tested angle sensor one end is fixing is provided with block between seat and described connection Magnet, described block can let slip described nut slider but by spacing for described connection Magnet.
Further illustrating, the fixing seat of the described leading screw at described lead screw transmission bar two ends is respectively mounted proximity switch, and when described nut slider is close to arbitrary described proximity switch, described proximity switch sends signal and controls servomotor jerk.
Further illustrating, described straight line and angle displacement sensor measurement apparatus connect computer by A/D and D/A converter, and described computer is provided with controller.
Further illustrating, described straight line and angle displacement sensor measurement apparatus periphery also have stand.
Preferably, the length of described master grating chi is 0.4-0.6m.
Further illustrating, described ball-screw is that double lead-screw nut shim adjusts gap type structure.
Further illustrating, the control instruction that described servomotor is sent by computer and described controller drives the motion producing friction speed and different wave.
Further illustrate, the output Real time displaying and drawing on the interface of computer system of described master grating chi, described tested linear displacement transducer and described angle displacement sensor；The performance test results of described tested linear displacement transducer and angle displacement sensor passes through Computer display and storage.
The beneficial effects of the utility model: this utility model is by applying described master grating chi 7 as standard straight-line displacement transducer, motor control form in conjunction with servomotor 1 and ball-screw 2, set up the straight-line displacement of combination property and the measurement apparatus of angle displacement sensor, it is capable of high accuracy and the general linear displacement transducer of high-resolution measurement and angle displacement sensor, its certainty of measurement is 0.1 grade, Measurement Resolution is 1 micron, measuring speed can reach 10 ms/min, reduces cost simultaneously and saves occupation of land space.
Accompanying drawing explanation
Fig. 1 is the schematic diagram of a kind of straight line of one embodiment of this utility model and angle displacement sensor measurement apparatus；
The double lead-screw nut shim that Fig. 2 is one embodiment of this utility model adjusts gap type structure；
Wherein: servomotor 1, ball-screw 2, nut slider 3, leading screw fixes seat 4, block 41, proximity switch 42, shaft coupling 5, angle displacement sensor 6, master grating chi 7, tested linear displacement transducer 8, connect Magnet 9, transducer 10, computer 11, stand 12, nut a, pad s.
Detailed description of the invention
The technical solution of the utility model is further illustrated below in conjunction with accompanying drawing and by detailed description of the invention.
As it is shown in figure 1, a kind of straight line and angle displacement sensor measurement apparatus, including servomotor 1, ball-screw 2, nut slider 3, the fixing seat 4 of leading screw, shaft coupling 5, angle displacement sensor 6, master grating chi 7 and tested linear displacement transducer 8；
The described ball-screw 2 described nut slider 3 of traverse, and two ends are respectively mounted the fixing seat 4 of described leading screw, described servomotor 1 and described angle displacement sensor 6 are respectively arranged on the fixing seat 4 of described leading screw by described shaft coupling 5, and described ball-screw 2 rotarily drives described angle displacement sensor 6 and is synchronized with the movement；Described master grating chi 7 and described tested linear displacement transducer 8 are driven by described nut slider 3 respectively through the magnetic force connecting Magnet 9.
This utility model is rotated through described shaft coupling 5 by described servomotor 1 and drives described ball-screw 2 to rotate, make described nut slider 3 for linear motion along leading screw direction, thus driving the motion of described master grating chi 7 and tested linear displacement transducer 8, when described servomotor 1 is with certain low-speed motion, then can measure the static characteristic of tested linear displacement transducer 8, carry out the static demarcating to it, and servomotor 1 is with different high-speed motions, then can measure the dynamic characteristic of described tested linear displacement transducer 8, it is carried out dynamic calibration.Additionally, rotate with the described ball-screw 2 that rotarily drives of the friction speed of servomotor 1, described ball-screw 2 drives described master grating chi 7 and angle displacement sensor 6 to be synchronized with the movement, the straight-line displacement of nut slider 3 is measured by described master grating chi 7, the rotary motion of described angle displacement sensor 6 is become rectilinear motion, it is converted into straight-line displacement x by angle displacement α, according to such as following formula: α=2 π x/ λ, namely the straight-line displacement of master grating chi can obtain the angle [alpha] of detected angle displacement sensor divided by guide screw lead.Detection with reference to linear displacement transducer correspondingly carries out performance detection and the detection of analysis, demarcation and performance evaluation, repeat property and hysterisis error, it is achieved the static demarcating of described angular transducer 6 and dynamic calibration.
Therefore this utility model is by applying described master grating chi 7 as standard straight-line displacement transducer, motor control form in conjunction with servomotor 1 and ball-screw 2, set up the straight-line displacement of combination property and the measurement apparatus of angle displacement sensor, it is capable of high accuracy and the general linear displacement transducer of high-resolution measurement and angle displacement sensor, its certainty of measurement is 0.1 grade, Measurement Resolution is 1 micron, measuring speed can reach 10 ms/min, reduces cost simultaneously and saves occupation of land space.
Further illustrating, described ball-screw 2 rotarily drives described angle displacement sensor 6 and is synchronized with the movement, and described nut slider 3 detects the motion of described angle displacement sensor 6 by the detection head of master grating chi 7 described in the magnetically-actuated of connection Magnet 9；
Described linear displacement transducer 8 by connect Magnet 9 magnetic force and by described nut slider 3 actuation movement, the detection head of described master grating chi 7 and described tested linear displacement transducer 8 is driven by described nut slider 3 be synchronized with the movement respectively through the magnetic force connecting Magnet 9, detects the motion of described tested linear displacement transducer 8.
Described for connection tested linear displacement transducer and angle displacement sensor and described master grating chi are connected by described connection Magnet 9 as connecting element.When described connection Magnet 9 and described nut slider 3 make synchronize rectilinear motion along the direction of described ball-screw 2, described master grating chi 7 can be made to keep corresponding with the straight-line displacement of described tested linear displacement transducer 8, improve the accuracy of measurement.Described straight line and angle displacement sensor measurement apparatus can pass through same described master grating chi 7, detect described tested linear displacement transducer 8 and described angle displacement sensor 6 respectively, make both measurements are more accurately facilitated.
Supplementary notes, described a kind of straight line and angle displacement sensor measure system can carry out the measurement for described angle displacement sensor 6 and described tested linear displacement transducer 8 respectively, and it is generally separate detection, it is also possible to detect simultaneously, synchronize to realize demarcating or comparing.
Further illustrating, the described leading screw of described tested angle sensor 6 one end is fixing is provided with block 41 between seat 4 and described connection Magnet 9, described block 41 can let slip described nut slider 3 but by spacing for described connection Magnet 9.
Owing to the active rule head of described master grating chi 7 and described tested linear displacement transducer 8 is linked together in described nut slider 3 by described connection Magnet 9, and be synchronized with the movement along the direction of described ball-screw 2 therewith, described block 41 is set, described two pieces of block 41 spacing are equal to or more than the width of described nut slider 3, less than the spacing of described master grating chi 7 with described tested linear displacement transducer 8；Then when described servomotor 1 runs the extreme limit of travel that the described nut slider 3 of drive exceedes described master grating chi 7 and tested linear displacement transducer 8, then described connection Magnet 9 can be subject to the obstruct of described block 41 in time and stop, it is made to separate with described nut slider 3, even if servomotor 1 drives described nut slider 3 to travel forward, and described nut slider 3 and described active rule head have disengaged, thus ensureing the safety of two displacement transducers.Therefore described block 41 plays the effect of guard bit displacement sensor together with connecting Magnet 9, and described connection Magnet 9 also acts as the effect of guide rod and connection in addition, has convenient connection and dismounting effect simultaneously.
Further illustrate; the fixing seat 4 of the described leading screw at described lead screw transmission bar 2 two ends is respectively mounted proximity switch 42; when described nut slider 3 is close to arbitrary described proximity switch 42, described proximity switch 42 sends signal and controls servomotor 1 jerk, plays the effect of protection motor and whole measurement apparatus.
The limit of sports record of servomotor 1 can be set according to the range ability of standard straight-line displacement transducer at described computer 11, and the proximity switch 42 of correspondence it is provided with at the fixing seat 4 of described leading screw, therefore when computer 11 detects abnormal, can be detected by the sensing of proximity switch 42, send signal and control servomotor 1 jerk, namely stopping servomotor by force to rotate, thus ensureing the safety of extreme limit of travel, not damaging displacement transducer.
Further illustrating, described straight line and angle displacement sensor measurement apparatus connect computer 11 by A/D and D/A converter 10, and described computer 11 is provided with controller.
The signal of described master grating chi 7, tested linear displacement transducer 8 and angle displacement sensor 6 output enters computer 11 through A/D and D/A converter 10, carries out straight line or the data preservation of angle displacement sensor test, drawing, calculating, matching, performance evaluation etc.；Described servomotor 1 is that the control instruction sent by computer 11 and described controller drives the motion producing friction speed and different wave, thus realizing static test and dynamic test.
With to the measurement of described tested linear displacement transducer 8 be demarcated as example, described computer 11, by the signals collecting of described master grating chi 7 and described tested linear displacement transducer 8, completes work specific as follows:
(1) performance detection and analysis: draw the static properties curve of two displacement transducers respectively according to the linear relationship demarcated when dispatching from the factory of described master grating chi 7 and tested linear displacement transducer 8, contrast carries out precision and the performance evaluation of tested linear displacement transducer 8；
(2) demarcation and performance evaluation: the voltage output according to the straight-line displacement of described master grating chi 7 output and tested linear displacement transducer 8, again demarcate, adopt least square fitting straight line to set up the linear-static straight line of tested linear displacement transducer 8 after demarcation, carry out the analysis of sensitivity, resolution, the linearity；
(3) detection of repeat property and hysterisis error: choose tested linear displacement transducer 8 and carry out 10 reciprocal measurements of whole range respectively, hysterisis error and repeatability error is calculated respectively according to 10 measurement results, wherein the gap of ball-screw is by measuring, and compensates during commutation every time；
(4) dynamic characteristic measuring: after static demarcating terminates, is gradually increased servomotor 1 velocity of rotation according to certain rule, improves the speed of tested linear displacement transducer 8, thus measuring the dynamic characteristic of tested linear displacement transducer 8.
Further illustrating, described straight line and angle displacement sensor measurement apparatus periphery also have stand 12.
Described tested linear displacement transducer 8 can move installation at stand 12, and fixes, such that it is able to measure the tested linear displacement transducer 8 of different length, and improves the stability of described tested linear displacement transducer 8, facilitates it static and dynamic calibration.
Preferably, the length of described master grating chi 7 is 0.4-0.6m.
Using described master grating chi 7 as standard straight-line displacement transducer, the length of described tested linear displacement transducer 8 can more than described master grating chi 7, by the location-appropriate installing point of described tested linear displacement transducer 8 is moved, carry out areal survey, then can realize the Static Detection of big displacement linear displacement transducer.
Further illustrating, described ball-screw 2 adjusts gap type structure for double lead-screw nut shim.
Owing to described ball-screw 2 rotates under the drive that described servomotor 1 rotates, there is opposite clearance error, therefore described ball-screw 2 is set to double lead-screw nut shim and adjusts gap type structure, this kind of form structure is simple and reliable, good rigidity, it is most widely used, between double nut a, the form of shimming s can be required to adjust in advance pretightning force by professional production factory according to user, loads and unloads very convenient, as shown in Figure 2 during use；And by computer 11 software compensation mode, eliminate the backlass of described ball-screw 2, improve certainty of measurement.
Further illustrating, the control instruction that described servomotor 1 is sent by computer 11 and described controller drives the motion producing friction speed and different wave.
The control instruction sent by computer and described controller drives described servomotor, thus realizing static properties and the dynamic performance testing of detected linear displacement transducer and angle displacement sensor.
Further illustrate, the output Real time displaying and drawing on the interface of computer system of described master grating chi 7, described tested linear displacement transducer 8 and described angle displacement sensor 6；The performance test results of described tested linear displacement transducer 8 and angle displacement sensor 6 is shown by computer 11 and is stored.
By the computer 11 output display by described master grating chi 7, described tested linear displacement transducer 8 and described angle displacement sensor 6 and store, thus carrying out corresponding performance detection and analysis, demarcation and the detection of performance evaluation, repeat property and hysterisis error, dynamic characteristic measuring etc., finally test result is shown exactly.
Know-why of the present utility model is described above in association with specific embodiment.These describe and are intended merely to explanation principle of the present utility model, and can not be construed to the restriction to this utility model protection domain by any way.Based on explanation herein, those skilled in the art need not pay performing creative labour can associate other detailed description of the invention of the present utility model, and these modes fall within protection domain of the present utility model.
Claims (10)
1. a straight line and angle displacement sensor measurement apparatus, it is characterised in that: include servomotor, ball-screw, nut slider, the fixing seat of leading screw, shaft coupling, angle displacement sensor, master grating chi and tested linear displacement transducer；
The described ball-screw described nut slider of traverse, and two ends are respectively mounted the fixing seat of described leading screw, described servomotor and described angle displacement sensor are respectively arranged on the fixing seat of described leading screw by described shaft coupling, and described ball-screw rotarily drives described angle displacement sensor and is synchronized with the movement；Described master grating chi and described tested linear displacement transducer are driven by described nut slider respectively through the magnetic force connecting Magnet.
2. a kind of straight line according to claim 1 and angle displacement sensor measurement apparatus, it is characterized in that: described ball-screw rotarily drives described angle displacement sensor and is synchronized with the movement, described nut slider detects the motion of described angle displacement sensor by the detection head of master grating chi described in the magnetically-actuated of connection Magnet；
Described linear displacement transducer by connect Magnet magnetic force and by described nut slider actuation movement, the detection head of described master grating chi and described tested linear displacement transducer is driven by described nut slider be synchronized with the movement respectively through the magnetic force connecting Magnet, detects the motion of described tested linear displacement transducer.
3. a kind of straight line according to claim 1 and angle displacement sensor measurement apparatus, it is characterized in that: the described leading screw of described tested angle sensor one end is fixing is provided with block between seat and described connection Magnet, described block can let slip described nut slider but by spacing for described connection Magnet.
4. a kind of straight line according to claim 1 and angle displacement sensor measurement apparatus, it is characterized in that: the fixing seat of the described leading screw at described lead screw transmission bar two ends is respectively mounted proximity switch, when described nut slider is close to arbitrary described proximity switch, described proximity switch sends signal and controls servomotor jerk.
5. a kind of straight line according to claim 1 and angle displacement sensor measurement apparatus, it is characterised in that: described straight line and angle displacement sensor measurement apparatus connect computer by A/D and D/A converter, and described computer is provided with controller.
6. a kind of straight line according to claim 1 and angle displacement sensor measurement apparatus, it is characterised in that: described straight line and angle displacement sensor measurement apparatus periphery also have stand.
7. a kind of straight line according to claim 1 and angle displacement sensor measurement apparatus, it is characterised in that: the length of described master grating chi is 0.4-0.6m.
8. a kind of straight line according to claim 1 and angle displacement sensor measurement apparatus, it is characterised in that: described ball-screw is that double lead-screw nut shim adjusts gap type structure.
9. a kind of straight line according to claim 5 and angle displacement sensor measurement apparatus, it is characterised in that: the control instruction that described servomotor is sent by computer and described controller drives the motion producing friction speed and different wave.
10. a kind of straight line according to claim 1 and angle displacement sensor measurement apparatus, it is characterised in that: the output Real time displaying of described master grating chi, described tested linear displacement transducer and described angle displacement sensor and drawing on the interface of computer system；The performance test results of described tested linear displacement transducer and angle displacement sensor passes through Computer display and storage.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201620042567.XU CN205352345U (en) | 2016-01-14 | 2016-01-14 | Straight line and angle displacement sensor measurement device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201620042567.XU CN205352345U (en) | 2016-01-14 | 2016-01-14 | Straight line and angle displacement sensor measurement device |
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| CN205352345U true CN205352345U (en) | 2016-06-29 |
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| CN201620042567.XU Withdrawn - After Issue CN205352345U (en) | 2016-01-14 | 2016-01-14 | Straight line and angle displacement sensor measurement device |
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Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105547219A (en) * | 2016-01-14 | 2016-05-04 | 广东工业大学 | Linear and angular displacement sensor measurement system and method |
| CN107176282A (en) * | 2017-05-25 | 2017-09-19 | 贵州宝文电机科技有限公司 | Inside turn straight line steering wheel |
| CN107728606A (en) * | 2017-11-13 | 2018-02-23 | 吉林大学 | Servo feed system reliability test and test method |
| CN109186498A (en) * | 2018-02-11 | 2019-01-11 | 上海机动车检测认证技术研究中心有限公司 | A kind of integrated correction device |
-
2016
- 2016-01-14 CN CN201620042567.XU patent/CN205352345U/en not_active Withdrawn - After Issue
Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105547219A (en) * | 2016-01-14 | 2016-05-04 | 广东工业大学 | Linear and angular displacement sensor measurement system and method |
| CN105547219B (en) * | 2016-01-14 | 2018-10-12 | 广东工业大学 | The measuring system and measurement method of linear displacement transducer and angle displacement sensor |
| CN107176282A (en) * | 2017-05-25 | 2017-09-19 | 贵州宝文电机科技有限公司 | Inside turn straight line steering wheel |
| CN107728606A (en) * | 2017-11-13 | 2018-02-23 | 吉林大学 | Servo feed system reliability test and test method |
| CN109186498A (en) * | 2018-02-11 | 2019-01-11 | 上海机动车检测认证技术研究中心有限公司 | A kind of integrated correction device |
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Granted publication date: 20160629 Effective date of abandoning: 20181012 |
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| AV01 | Patent right actively abandoned |
Granted publication date: 20160629 Effective date of abandoning: 20181012 |