CN207866274U - Encoder accuracy detection device - Google Patents
Encoder accuracy detection device Download PDFInfo
- Publication number
- CN207866274U CN207866274U CN201721805439.7U CN201721805439U CN207866274U CN 207866274 U CN207866274 U CN 207866274U CN 201721805439 U CN201721805439 U CN 201721805439U CN 207866274 U CN207866274 U CN 207866274U
- Authority
- CN
- China
- Prior art keywords
- motor
- bracket plate
- encoder
- transmission shaft
- circular gratings
- 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.)
- Active
Links
Landscapes
- Transmission And Conversion Of Sensor Element Output (AREA)
Abstract
The utility model is related to a kind of encoder accuracy detection devices, the device includes upper bracket plate, lower bracket plate, Circular gratings, transmission shaft, motor and read head, the motor is installed on upper bracket plate, go out axis connection after the motor and is tested encoder, described transmission shaft one end passes through the front output shaft of upper bracket plate and motor to connect, the transmission shaft other end is connect after passing through lower bracket plate with Circular gratings, the read head is installed on the side of Circular gratings on lower bracket plate, and the motor drives Circular gratings to rotate by transmission shaft.Compared with prior art, the utility model has many advantages, such as that simple in structure, precision is high.
Description
Technical field
The utility model is related to encoder detection technique fields, more particularly, to a kind of encoder accuracy detection device.
Background technology
Manufacturing link due to code-disc groove, assembly technology, photocell characteristic and signal processing etc. all can be to coding
The final positional precision of device has a huge impact, therefore encoder before being taken into use must test to its positional precision
And it corrects.Usually all it is to utilize high precision position measuring device to tested to minimize the error brought in these links
Encoder is measured, and to obtain one group of site error curve, which is written in encoder, is corrected.(this
A device is for detecting encoder accuracy, without calibration function.The step is in entire encoder mounting process whole
Completion includes after correcting, for accuracy of detection.Because encoder is after installation is complete, although having correction, still meeting
There is deviation, can not ensure centainly to reach requirement.This device is exactly for detecting whether reaching requirement.Such as：The coding installed
Device precision wishes to reach 13, and after the inspection of this device, we can accurately read this encoder actual installation
To how many precision.)
As shown in figure 4, the prior art passes through shaft coupling by the way of to dragging, with rear shaft first motor 9 with encoder
Device 10 drives the second motor 11, and tested encoder is installed on the rear shaft of the second motor 11.This method is lacked there are following
It falls into：(1), the first motor of driving in this way is needed using with the volume than needing encoder higher precision to be tested
Code device.And need accurately to know the available accuracy of this encoder, but encoder on the market can't inform accurate precision.
(2), connection type uses shaft coupling connection so that obtained data are inaccurate.
By retrieval, China Patent Publication No. is that CN204241016U discloses a kind of encoder accuracy detection device, is wrapped
Include fixing bracket, large inertia device, electromagnetic clutch, driving electromagnetic clutch work servo motor, for connecting computer
The input/output interface of system, and servo motor is run according to the instruction that input/output interface is received from computer system；It is to be measured
Encoder is fixed on large inertia device center of top and transmits corner numerical value to computer system by input/output interface, is used to greatly
Amount device is rotatably connected by bearing on fixing bracket, and electromagnetic clutch is arranged immediately below large inertia device and is used to big
The connection of device coaxial transmission is measured, input/output interface is connect with encoder to be measured, servo motor respectively.It is to be measured in the utility model
The multiple repairing weld of encoder can be carried out continuously without whole device is static, therefore measurement efficiency greatly improves.But
Encoder to be measured is still fixedly connected by the shaft coupling with the output shaft of large inertia device in the utility model, obtained number
According to not accurate enough, measurement accuracy is not high.
Utility model content
The purpose of this utility model is exactly to provide a kind of encoder essence to overcome the problems of the above-mentioned prior art
Spend detection device.
The purpose of this utility model can be achieved through the following technical solutions：
A kind of encoder accuracy detection device, the device include upper bracket plate, lower bracket plate, Circular gratings, transmission shaft, motor
And read head, the motor are installed on upper bracket plate, and axis connection is gone out after the motor and is tested encoder, the transmission
Axis one end passes through the front output shaft of upper bracket plate and motor to connect, the transmission shaft other end pass through after lower bracket plate with Circular gratings
Connection, the read head are installed on the side of Circular gratings on lower bracket plate, and the motor drives Circular gratings to revolve by transmission shaft
Turn.
Preferably, the device further includes for ensureing that the axis for being driven shaft concentricity surveys seat.
Preferably, the device further includes the locking nut for preventing transmission shaft axial float.
Preferably, the fever upper bracket plate is connect with lower bracket plate by support column.
Preferably, the device further includes the regulating mechanism of Circular gratings levelness.
Preferably, the transmission shaft is connect using stop screw with motor.
Compared with prior art, the utility model has the following advantages：
1, existing scheme selects Circular gratings that can explicitly know the precision of Circular gratings, and this by the type selecting to Circular gratings
Precision is significantly larger than tested motor institute band encoder accuracy.
2, existing scheme uses stop screw to connect immediately above in connection type, does not use shaft coupling, ensure that tested
The precision of data.
Description of the drawings
Fig. 1 is the apparatus structure schematic diagram of the utility model；
Fig. 2 is the device entirety front view of the utility model；
Fig. 3 is the Circular gratings partial structural diagram of utility model device；
Fig. 4 is existing measuring device structural schematic diagram.
Wherein 1 is Circular gratings, and 2 be bearing block, and 3 be locking nut, and 4 be axis, and 5 be motor, and 6 be read head, and 7 be upper bracket
Plate, 8 be lower bracket plate, and 9 be first motor, and 10 be shaft coupling, and 11 be the second motor.
Specific implementation mode
Below by the technical scheme in the utility model embodiment is clearly and completely described, it is clear that described
Embodiment is a part of the embodiment of the utility model, rather than whole embodiments.Based on the embodiments of the present invention, originally
The every other embodiment that field those of ordinary skill is obtained without making creative work should all belong to this
The range of utility model protection.
As depicted in figs. 1 and 2, a kind of encoder accuracy detection device, the device include：Upper bracket plate 7, lower bracket plate 8,
Circular gratings 1, bearing block 2, locking nut 3, transmission shaft 4, motor 5 and read head 6, the upper bracket plate 7 pass through with lower bracket plate 8
Pillar connects, and the motor 5 is installed on upper bracket plate 7, and axis connection is gone out after the motor 5 and is tested encoder, described
One end of transmission shaft 4 connect with the front output shaft of motor 5 across upper bracket plate 7, the other end of the transmission shaft 4 sequentially passes through
Locking nut 3, bearing block 2 and lower bracket plate 8 are connect with Circular gratings 1, and the read head 6 is installed on Circular gratings 1 on lower bracket plate 8
Side, the position of the read head 6 can read 1 related data of Circular gratings, and the motor 5 passes through transmission shaft 4 and drives circle
Grating 1 rotates.
As shown in figure 3, the levelness of Circular gratings 1 is adjusted after the device is inverted.The precision of the Circular gratings 1
The precision of encoder need to be significantly larger than tested.The transmission shaft is connect using stop screw with motor.
The operation principle of this programme is the utilization by Circular gratings 1, to accurately detect the precision of encoder.The dress
In setting：Bearing block 2 is used to ensure the concentricity of transmission shaft 4, locking nut 3 for ensure transmission shaft 4 will not axial float, transmission
Axis 4 is equipped with tested for connecting Circular gratings 1 and motor 5, motor 5 for driving Circular gratings 1 to rotate in the rear shaft of motor 5
Encoder, read head is used for reading Circular gratings related data, and is compared with the data of tested encoder, to realize encoder
The measurement of precision.
Above description is only a specific implementation of the present invention, but the scope of protection of the utility model is not limited to
In this, any one skilled in the art within the technical scope disclosed by the utility model, can readily occur in various
Equivalent modifications or substitutions, these modifications or substitutions should be covered within the scope of the utility model.Therefore, this practicality
Novel protection domain should be subject to the protection scope in claims.
Claims (6)
1. a kind of encoder accuracy detection device, which is characterized in that the device includes upper bracket plate, lower bracket plate, Circular gratings, biography
Moving axis, motor and read head, the motor are installed on upper bracket plate, and axis connection is gone out after the motor and is tested encoder,
Described transmission shaft one end passes through the front output shaft of upper bracket plate and motor to connect, and the transmission shaft other end passes through lower bracket plate
It is connect afterwards with Circular gratings, the read head is installed on the side of Circular gratings on lower bracket plate, and the motor passes through transmission shaft band
Dynamic Circular gratings rotation.
2. a kind of encoder accuracy detection device according to claim 1, which is characterized in that the device further includes using
In the axis survey seat for ensureing transmission shaft concentricity.
3. a kind of encoder accuracy detection device according to claim 1, which is characterized in that the device further includes using
In the locking nut for preventing transmission shaft axial float.
4. a kind of encoder accuracy detection device according to claim 1, which is characterized in that the upper bracket plate is under
Supporting plate is connected by support column.
5. a kind of encoder accuracy detection device according to claim 1, which is characterized in that the device further includes circle
The regulating mechanism of grating levelness.
6. a kind of encoder accuracy detection device according to claim 1, which is characterized in that the transmission shaft, which uses, to be stopped
Dynamic screw is connect with motor.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201721805439.7U CN207866274U (en) | 2017-12-21 | 2017-12-21 | Encoder accuracy detection device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201721805439.7U CN207866274U (en) | 2017-12-21 | 2017-12-21 | Encoder accuracy detection device |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN207866274U true CN207866274U (en) | 2018-09-14 |
Family
ID=63465712
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201721805439.7U Active CN207866274U (en) | 2017-12-21 | 2017-12-21 | Encoder accuracy detection device |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN207866274U (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110332955A (en) * | 2019-07-25 | 2019-10-15 | 长沙滕创信息技术有限公司 | A kind of photoelectric encoder calibration method |
| WO2020108469A1 (en) * | 2018-11-29 | 2020-06-04 | 歌尔股份有限公司 | Rotary encoder testing device |
-
2017
- 2017-12-21 CN CN201721805439.7U patent/CN207866274U/en active Active
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO2020108469A1 (en) * | 2018-11-29 | 2020-06-04 | 歌尔股份有限公司 | Rotary encoder testing device |
| CN110332955A (en) * | 2019-07-25 | 2019-10-15 | 长沙滕创信息技术有限公司 | A kind of photoelectric encoder calibration method |
| CN110332955B (en) * | 2019-07-25 | 2022-03-11 | 苏州安必轩微电子技术有限公司 | Photoelectric encoder calibration method and photoelectric encoder and motor combined structure |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN101561349B (en) | Large gear detecting method and detecting device | |
| CN100545613C (en) | Gear pair transmission accuracy measuring method | |
| CN103257050B (en) | Three-directional static rigidity synchronous testing system for machine tool | |
| CN102032921B (en) | Automatic calibration method for inclinometer | |
| CN102494710A (en) | Angle measurement precision detection apparatus of encoder and detection method thereof | |
| CN201497631U (en) | Detection device for large-sized gear | |
| CN105269404A (en) | Detection device for knife point dynamic characteristics of numerical control machine tool and method of detection device | |
| CN207866274U (en) | Encoder accuracy detection device | |
| CN105127735A (en) | Installation aligning method for shafting | |
| CN105043317A (en) | Device and method for measuring dynamic revolution error of main shaft of set of revolution equipment | |
| CN104236903A (en) | Calibration device of gear transmission error detection equipment | |
| CN110455227A (en) | Four through axial bore coaxiality error detection method of telescope | |
| CN102636186A (en) | Positioning and calibration device of angular position of three-axis turntable | |
| CN104458762B (en) | Digital optical fiber sensor-based detection method for quality of ABS gear ring | |
| CN201837399U (en) | Automatic calibrating device for inclinometer | |
| CN102155214A (en) | Detection device for gyrolevel | |
| CN109945909A (en) | A kind of encoder accuracy detection device | |
| CN204116043U (en) | A kind of calibrating installation detection architecture of gear drive error checkout equipment | |
| CN103591874A (en) | Method for achieving polar coordinate gear measuring center zero point calibration through standard block | |
| CN204101578U (en) | Inertia turntable angular speed calibrating installation | |
| CN210625622U (en) | Eccentric shaft system with angular position self-checking and automatic calibration functions | |
| CN209857935U (en) | Detection device for detecting precision of photoelectric encoder | |
| CN103575251A (en) | Center deviation detecting method for rotary type ultrasonic flaw detection device | |
| CN108562425A (en) | Gear hobbing machine knife frame test platform and its test method | |
| CN206493337U (en) | A kind of test device of industrial robot repetitive positioning accuracy |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| GR01 | Patent grant | ||
| GR01 | Patent grant |