CN206818741U - The measurement apparatus of steering wheel - Google Patents
The measurement apparatus of steering wheel Download PDFInfo
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- CN206818741U CN206818741U CN201720360461.9U CN201720360461U CN206818741U CN 206818741 U CN206818741 U CN 206818741U CN 201720360461 U CN201720360461 U CN 201720360461U CN 206818741 U CN206818741 U CN 206818741U
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- steering wheel
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- rotation
- measurement apparatus
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Abstract
The utility model discloses a kind of measurement apparatus of steering wheel, including：Steering wheel fixing device, shaft coupling, grating, photoelectric encoder, drive shaft and controller, wherein, steering wheel to be tested is fixed in the steering wheel fixing device, the grating is arranged on the code-disc of the photoelectric encoder, one end of the shaft coupling is connected with the steering wheel to be tested, the other end of the shaft coupling is connected by drive shaft with the code-disc of the photoelectric encoder, the shaft coupling is used for the rotation that the code-disc of the photoelectric encoder is driven by the rotation of the steering wheel to be tested, and then the grating is driven to rotate, the photoelectric encoder is used to the optical signal collected using grating rotation being converted to pulse signal, and the pulse signal is sent to the controller, the controller is used for the rotation information that the steering wheel to be tested is calculated according to the pulse signal.The measuring accuracy of the measurement apparatus of steering wheel provided by the utility model is high, disclosure satisfy that the requirement of test.
Description
Technical field
Intelligent robot technology field is the utility model is related to, more particularly, to a kind of measurement apparatus of steering wheel.
Background technology
Articulated part of the robot steering wheel as robot, action of its running precision to robot have important shadow
Ring, therefore, the measurement to the angle and speed of steering wheel operating is most important.
In the prior art, the angular surveying of steering wheel operating is measured by dial, about ± 0.5 ° of its measurement accuracy, steering wheel
The time of steering wheel operating is measured during the tachometric survey of operating by stopwatch, the steering wheel operating for then recycling dial to measure
Angle manually calculate steering wheel operating speed.The angular surveying of above-mentioned steering wheel operating and the mode measurement error of tachometric survey
It is larger, measurement request can not be met.
Utility model content
A purpose of the present utility model is to provide a kind of new solution of the measurement apparatus of steering wheel.
According to one side of the present utility model, there is provided a kind of measurement apparatus of steering wheel, including：Steering wheel fixing device,
Shaft coupling, grating, photoelectric encoder, drive shaft and controller, wherein, the steering wheel to be tested is fixed on the steering wheel and fixes dress
Put, the grating is arranged on the code-disc of the photoelectric encoder, and one end of the shaft coupling connects with the steering wheel to be tested
Connect, the other end of the shaft coupling is connected by drive shaft with the code-disc of the photoelectric encoder, and the shaft coupling is used to pass through
The rotation of the steering wheel to be tested drives the rotation of the code-disc of the photoelectric encoder, and then drives the grating to rotate, described
Photoelectric encoder is used to the optical signal collected using grating rotation being converted to pulse signal, and the pulse is believed
Number send to the controller, the controller is used for the rotation that the steering wheel to be tested is calculated according to the pulse signal
Information.
Alternatively, first group grid stroke and second group grid stroke of the grating including being used for reflection light, described first
Group grid stroke and second group of grid stroke are the equal radial grid line of pitch, and first group of grid stroke and described the
Two groups of grid strokes mutually stagger arrangement.
Alternatively, the photoelectric encoder includes：Light-emitting component, light-sensitive element and optical signal prosessing element.
Alternatively, the controller includes pulse count signal device, timer and rotation information counting circuit, wherein, institute
State rotation information counting circuit and be used for the pulse signal according to pulse count signal device record and the timer record
Time of the steering wheel to be tested rotation calculate the rotation information of the steering wheel to be tested.
Alternatively, the rotation information includes：Direction of rotation, the anglec of rotation and rotary speed.
Alternatively, the photoelectric encoder is incremental optical-electricity encoder.
Alternatively, the measurement apparatus also includes：Terminal, communicated to connect with the controller, for showing what is calculated
The rotation information of the steering wheel to be tested.
The measurement apparatus of steering wheel provided by the utility model, when steering wheel to be measured is rotated, drive photoelectric encoder
Code-disc is rotated, and then drives the grating being arranged on the code-disc of photoelectric encoder to be rotated, and photoelectric encoder will gather
To the optical signal of optical grating reflection be converted to pulse signal, the rotation of steering wheel to be tested is calculated according to pulse signal for controller
Transfering the letter breath, realizes the measurement of the rotation information to steering wheel to be tested.The metering system provided relative to prior art, this practicality
The measuring accuracy of the measurement apparatus of the steering wheel of new offer is high, disclosure satisfy that the requirement of test.
It is of the present utility model other by referring to the drawings to the detailed description of exemplary embodiment of the present utility model
Feature and its advantage will be made apparent from.
Brief description of the drawings
It is combined in the description and the accompanying drawing of a part for constitution instruction shows embodiment of the present utility model, and
And it is used to explain principle of the present utility model together with its explanation.
Fig. 1 shows the structural representation of the measurement apparatus of the steering wheel according to the utility model one embodiment.
Fig. 2 shows the connection signal according to the grating of the utility model one embodiment, photoelectric encoder and drive shaft
Figure.
Fig. 3 shows the schematic diagram of the grating according to the utility model one embodiment.
Fig. 4 a show the schematic diagram of the two prescription shaped pulse signals according to the utility model one embodiment.
Fig. 4 b show another schematic diagram of the two prescription shaped pulse signals according to the utility model one embodiment.
Embodiment
Various exemplary embodiments of the present utility model are described in detail now with reference to accompanying drawing.It should be noted that：It is unless another
Illustrate outside, the part and the positioned opposite of step, numerical expression and numerical value otherwise illustrated in these embodiments is unlimited
The scope of the utility model processed.
The description only actually at least one exemplary embodiment is illustrative to be never used as to this practicality below
New and its application or any restrictions used.
It may be not discussed in detail for technology, method and apparatus known to person of ordinary skill in the relevant, but suitable
In the case of, the technology, method and apparatus should be considered as part for specification.
In shown here and discussion all examples, any occurrence should be construed as merely exemplary, without
It is as limitation.Therefore, other examples of exemplary embodiment can have different values.
It should be noted that：Similar label and letter represents similar terms in following accompanying drawing, therefore, once a certain Xiang Yi
It is defined, then it need not be further discussed in subsequent accompanying drawing in individual accompanying drawing.
One embodiment of the present utility model provides a kind of measurement apparatus of steering wheel.The measurement apparatus of steering wheel is at least wrapped
Include：Steering wheel fixing device, shaft coupling, grating, photoelectric encoder and controller.Fig. 1 is shown according to one reality of the utility model
Apply the structural representation of the measurement apparatus of the steering wheel of example.Fig. 1 illustrate only steering wheel fixing device 110, shaft coupling 120, photoelectricity and compile
Code device 130, drive shaft 140 and steering wheel to be tested 200.Steering wheel 200 to be tested is fixed in steering wheel fixing device 110.When treating
When testing the progress test operation of steering wheel 200, steering wheel 200 to be tested can carry out rotation process.Grating is arranged on photoelectric encoder 130
Code-disc 1310 on.One end of shaft coupling 120 is connected with steering wheel 200 to be tested, and the other end of shaft coupling 120 passes through drive shaft
140 are connected with the code-disc 1310 of photoelectric encoder 130.Shaft coupling 120 is used to drive photoelectricity by the rotation of steering wheel 200 to be tested
The rotation of the code-disc 1310 of encoder 130, and then drive turning for the grating being arranged on the code-disc 1310 of photoelectric encoder 130
It is dynamic.Photoelectric encoder 130 is converted to pulse signal for will rotate the optical signal collected using grating, and will be converted to
Pulse signal send to controller.Controller is used for the rotation information that steering wheel 200 to be tested is calculated according to pulse signal.
The measurement apparatus of steering wheel provided by the utility model, when steering wheel to be measured is rotated, drive photoelectric encoder
Code-disc is rotated, and then drives the grating being arranged on the code-disc of photoelectric encoder to be rotated, and photoelectric encoder will gather
To the optical signal of optical grating reflection be converted to pulse signal, the rotation of steering wheel to be tested is calculated according to pulse signal for controller
Transfering the letter breath, realizes the measurement of the rotation information to steering wheel to be tested.The metering system provided relative to prior art, this practicality
The measuring accuracy of the measurement apparatus of the steering wheel of new offer is high, disclosure satisfy that the requirement of test.
In the utility model embodiment, the rotation information of steering wheel to be tested comprise at least steering wheel to be tested direction of rotation,
The anglec of rotation and rotary speed.
Fig. 2 shows the connection signal according to the grating of the utility model one embodiment, photoelectric encoder and drive shaft
Figure.Referring to Fig. 2, grating 210 is arranged on the code-disc 1310 of photoelectric encoder 130, and photoelectric encoder 130 passes through drive shaft 140
It is connected with shaft coupling 120.
Fig. 3 shows the schematic diagram of the grating according to the utility model one embodiment.Referring to Fig. 3, grating 210 includes two
Grid stroke of the group for reflection light, i.e. first group of grid stroke 210a and second group of grid stroke 210b.First group of grid stroke 210a
With second group of grid stroke 210b radial grid lines that to be pitch equal, and first group of grid stroke 210a and second group of grid stroke
210b mutually staggers arrangement.Referring to Fig. 2, first group of grid stroke 210a is radially arranged in the outer rim position of code-disc, relative to
First group of grid stroke 210a, second group of grid stroke 210b radially position arrangement closer to code-disc center position, and first
Group grid stroke 210a and second group of grid stroke 210b mutually staggers.In the utility model embodiment, first group of grid stroke 210a and
Second group of grid stroke 210b mutually staggers 1/4 pitch.When light directive grating 210, first group of grid stroke 210a and second group
Grid stroke 210b can reflection light.Photoelectric encoder can receive first group of grid stroke 210a and second group of grid stroke 210b reflection
Light, generate optical signal, and optical signal be converted to corresponding pulse signal.
In the utility model embodiment, photoelectric encoder in addition to including the above-mentioned code-disc being related to, in addition to：Luminous member
Part, light-sensitive element and optical signal prosessing element.Light-emitting component is used to emit beam, and the light directive grating that will be sent.It is photosensitive
Element is used to the light for receiving grating line reflection generating optical signal, and sends optical signals to optical signal prosessing element.Light
Signal Processing Element is used to optical signal changing generation pulse signal.
When grating rotates, first group of grid stroke and second group of grid stroke are respectively reflected light.Photosensitive member
Part receives two groups of different optical signals, i.e. first group of optical signal and second group of optical signal, wherein, first group of optical signal is by
Grid line in one group of grid stroke reflects what is obtained, and second group of optical signal is to reflect what is obtained by the grid line in second group of grid stroke.
First group of optical signal and second group of optical signal are converted to two prescription shape wave pulse signals by optical signal prosessing element respectively, i.e.,
First group pulse signal and the second group pulse signal.When first group of grid stroke and second group of grid stroke mutually stagger 1/4 pitch,
The the first group pulse signal and the phase of the second group pulse signal that optical signal prosessing element is converted to differ 90 °.Fig. 4 a are shown
According to the schematic diagram of two prescription shaped pulse signals of the utility model one embodiment.Fig. 4 b are shown according to the utility model
Another schematic diagram of the two prescription shaped pulse signals of one embodiment.Square pulse positioned at Fig. 4 a and Fig. 4 b top halfs is believed
Number oscillogram corresponding to be the first group pulse signal, the square shape pulsed signal positioned at Fig. 4 a and Fig. 4 b the latter half is corresponding
It is the second group pulse signal.Phase of the phase of the first prescription shaped pulse signal shown in Fig. 4 a than the second prescription shaped pulse signal
Advanced 90 °, 90 ° more advanced than the phase of the first prescription shaped pulse signal of the phase of the second prescription shaped pulse signal shown in Fig. 4 b.
In the utility model embodiment, the phase of the second prescription shaped pulse signal by comparing the first prescription shaped pulse signal, it is determined that
The direction of rotation of steering wheel to be tested.For example, work as phase of the phase than the second prescription shaped pulse signal of the first prescription shaped pulse signal
Position advanced 90 ° when, it may be determined that steering wheel to be tested rotates forward, when the phase of the second prescription shaped pulse signal is than the first prescription shape arteries and veins
Rush signal phase it is advanced 90 ° when, it may be determined that steering wheel to be tested inverts.
In the utility model embodiment, controller comprises at least：Pulse count signal device, timer and rotation information calculate
Circuit.Pulse count signal device is used to count the pulse signal received.Timer is used to record steering wheel rotation to be tested
The initial time that turns and the time is terminated, and then according to initial time and terminate the time that the time calculates steering wheel to be tested and rotate.
Rotation information counting circuit is used for the rudder to be tested of the pulse signal and timer record recorded according to pulse count signal device
The time of machine rotation calculates the rotation information of steering wheel to be tested.For example, first group of grid stroke and second group are placed with grating
Grid stroke, wherein, the quantity of first group of grid stroke and second group of grid stroke is 1000, and light-emitting component emits beam directive light
The a certain specific region of grid, the grid stroke positioned at the specific region are reflected light, when grating rotating one week, i.e., 360 °,
The grid line in 1000 first group of grid strokes on grating is reflected light in sequence, and light-sensitive element receives
The light that grid line in 1000 first group of grid strokes reflects in sequence, generate 1000 optical signals.Optical signal prosessing element
1000 optical signals are converted to 1000 square shape pulsed signals.When the time of the rotation of the steering wheel to be tested of timer record
It is 10s, and when the quantity of the square shape pulsed signal of pulse count signal device record generation is 100, then rotation information calculates electricity
The anglec of rotation that road calculates the steering wheel to be tested in 10s is 36 °, and then the rotary speed for calculating steering wheel to be tested is
3.6°/s。
In the utility model embodiment, photoelectric encoder is preferably incremental optical-electricity encoder.It the utility model is related to
Photoelectric encoder can be also other any type of photoelectric encoders, on the other hand, the utility model does not do any restriction.
In the utility model embodiment, the measurement apparatus of steering wheel at least also includes terminal.The terminal and controller communication link
Connect, for the rotation information of the steering wheel to be tested calculated will to be shown.
It is described above each embodiment of the present utility model, described above is exemplary, and non-exclusive, and
And it is also not necessarily limited to disclosed each embodiment.In the case of without departing from the scope and spirit of illustrated each embodiment, for
Many modifications and changes will be apparent from for those skilled in the art.The choosing of term used herein
Select, it is intended to best explain the principle of each embodiment, practical application or to the technological improvement in market, or make the art
Other those of ordinary skill be understood that each embodiment disclosed herein.The scope of the utility model is limited by appended claims
It is fixed.
Claims (7)
- A kind of 1. measurement apparatus of steering wheel, it is characterised in that including：Steering wheel fixing device, shaft coupling, grating, photoelectric encoder, Drive shaft and controller, wherein, steering wheel to be tested is fixed in the steering wheel fixing device, and the grating is arranged on the photoelectricity On the code-disc of encoder, one end of the shaft coupling is connected with the steering wheel to be tested, and the other end of the shaft coupling passes through drive Moving axis is connected with the code-disc of the photoelectric encoder, and the shaft coupling is used for by described in the rotation drive of the steering wheel to be tested The rotation of the code-disc of photoelectric encoder, and then drive the grating to rotate, the photoelectric encoder is used to that the grating will to be utilized Rotate the optical signal collected and be converted to pulse signal, and the pulse signal is sent to the controller, the control Device is used for the rotation information that the steering wheel to be tested is calculated according to the pulse signal.
- 2. measurement apparatus according to claim 1, it is characterised in that the grating includes first group for reflection light Grid stroke and second group of grid stroke, first group of grid stroke and second group of grid stroke are the equal radial grid of pitch Line, and first group of grid stroke and second group of grid stroke mutually stagger arrangement.
- 3. measurement apparatus according to claim 1, it is characterised in that the photoelectric encoder includes：It is light-emitting component, photosensitive Element and optical signal prosessing element.
- 4. according to any described measurement apparatus of claim 1-3, it is characterised in that the controller includes pulse count signal Device, timer and rotation information counting circuit, wherein, the rotation information counting circuit is used for according to the pulse count signal The time of the steering wheel rotation to be tested of the pulse signal and the timer record of device record calculates described to be tested The rotation information of steering wheel.
- 5. measurement apparatus according to claim 4, it is characterised in that the rotation information includes：Direction of rotation, the anglec of rotation Degree and rotary speed.
- 6. measurement apparatus according to claim 1, it is characterised in that the photoelectric encoder encodes for increment photoelectric Device.
- 7. measurement apparatus according to claim 1, it is characterised in that the measurement apparatus also includes：Terminal, with the control Device communication connection processed, for showing the rotation information of the steering wheel to be tested calculated.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201720360461.9U CN206818741U (en) | 2017-04-07 | 2017-04-07 | The measurement apparatus of steering wheel |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201720360461.9U CN206818741U (en) | 2017-04-07 | 2017-04-07 | The measurement apparatus of steering wheel |
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| Publication Number | Publication Date |
|---|---|
| CN206818741U true CN206818741U (en) | 2017-12-29 |
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| CN201720360461.9U Active CN206818741U (en) | 2017-04-07 | 2017-04-07 | The measurement apparatus of steering wheel |
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Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108613819A (en) * | 2018-05-02 | 2018-10-02 | 北京尖翼科技有限公司 | a kind of test system |
| CN109520528A (en) * | 2018-11-29 | 2019-03-26 | 歌尔股份有限公司 | Rotary encoder test device |
| CN109991439A (en) * | 2019-04-24 | 2019-07-09 | 苏州科美澄汽车科技有限公司 | A kind of device of electric card pincers motor speed measurement and corresponding control method |
-
2017
- 2017-04-07 CN CN201720360461.9U patent/CN206818741U/en active Active
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108613819A (en) * | 2018-05-02 | 2018-10-02 | 北京尖翼科技有限公司 | a kind of test system |
| CN109520528A (en) * | 2018-11-29 | 2019-03-26 | 歌尔股份有限公司 | Rotary encoder test device |
| CN109991439A (en) * | 2019-04-24 | 2019-07-09 | 苏州科美澄汽车科技有限公司 | A kind of device of electric card pincers motor speed measurement and corresponding control method |
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