CN204373674U - A kind of photoresistance scrambler based on machinery segmentation - Google Patents
A kind of photoresistance scrambler based on machinery segmentation Download PDFInfo
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- CN204373674U CN204373674U CN201520010520.0U CN201520010520U CN204373674U CN 204373674 U CN204373674 U CN 204373674U CN 201520010520 U CN201520010520 U CN 201520010520U CN 204373674 U CN204373674 U CN 204373674U
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- driving wheel
- photoresistance
- light emitter
- lasing light
- battle array
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Abstract
The utility model discloses a kind of photoresistance scrambler based on machinery segmentation, belong to scrambler field, this scrambler comprises main shaft, described main shaft is fixed with driving wheel, engaged wheel and this driving wheel coordinate to install and are connected, described engaged wheel is fixedly installed on driven shaft, described engaged wheel is fixed with the first lasing light emitter, photoresistance face battle array is positioned at the front of this first lasing light emitter, face array signals processing system is connected with described photoresistance face battle array, described second lasing light emitter is positioned at the front of described driving wheel, described driving wheel code value disposal system is positioned at the rear of described driving wheel, the utility model utilizes mechanically operated mode to segment photoresistance face battle array code distinguishability, solve the problem bringing high cost because photoresistance face battle array is oversize, also solve the technical difficult problem of existing encoder resolution by code-disc restriction simultaneously, encoder resolution is significantly promoted.
Description
Technical field
The utility model relates to scrambler field, particularly relates to a kind of photoresistance scrambler based on machinery segmentation.
Background technology
In the production of modern manufacturing industry, more and more higher requirement is proposed to the degree of accuracy of machine operation.Scrambler is the Primary Component affecting machine operation degree of accuracy, its in mechanical rotating shaft motion process resetting shaft position information to control system to reach the object accurately controlling rotating shaft rotary motion position and speed.
Scrambler is divided into absolute type and relative type motor two kinds, and absolute type encoder can reflect the positional information of mechanical rotating shaft relative to predetermined initial point, the reflection of relative type motor scrambler be then current axis position relative to the positional information of front axle position.
A lot of absolute type encoder at present, the coded system of employing is gray encoding.Namely on code-disc, engrave multiple tracks code channel, every bar code channel have successively 2,4,8,16...2
aroad groove.When scrambler works, code-disc is penetrated in the illumination sent by light source, by reading the secretly bright of per pass groove, obtaining a group code value come a unique corresponding axle position with this.Although this kind of scrambler principle is simple, reliable operation, strong interference immunity, its code-disc manufacturing process is complicated, and the maximum code number of channels that can carve and maximum groove number also have certain limit, can not meet the requirement of ultrahigh resolution processing.
Chinese patent CN200710006964.7 discloses a kind of scrambler, this scrambler is installed on motor or by motor-driven machine, detect the scrambler of positional information or velocity information, from the reason representing various inside, the information of the timeliness change of external cause or long-time caused code device signal characteristic value, thus obtain to the valuable information of failure prediction with to the valuable information of reason determining that alarm sends discontinuously, thus improve the maintainability of scrambler; This technical scheme mainly processes to the signal that conventional codec exports the effect improving coding, but it does not solve the technical matters of existing encoder resolution by code-disc restriction.
Summary of the invention
In order to solve the technical matters of prior art encoder encodes device resolution by code-disc restriction, the utility model provides a kind of photoresistance scrambler based on machinery segmentation, this scrambler does not need code-disc, breaks away from the restriction of code-disc, and control resolution obtains and significantly promotes.
In order to achieve the above object, the utility model provides following technical scheme:
Based on a photoresistance scrambler for machinery segmentation, comprise main shaft, driven shaft, driving wheel, engaged wheel, the first lasing light emitter, the second lasing light emitter, photoresistance face battle array, face array signals processing system and driving wheel code value disposal system; Described main shaft is fixed with driving wheel, and engaged wheel and this driving wheel coordinate to install and be connected, and drive power wheel to rotate by driving wheel, the segmentation resolution that concrete ratio of gear is measured by main shaft is determined; Described engaged wheel is fixedly installed on driven shaft, described engaged wheel is fixed with the first lasing light emitter, photoresistance face battle array is positioned at the front of this first lasing light emitter, face array signals processing system is connected with described photoresistance face battle array and is positioned at the front of described photoresistance face battle array, described second lasing light emitter is positioned at the front of described driving wheel, and described driving wheel code value disposal system is positioned at the rear of described driving wheel.
One as the technical program is improved, described driving wheel is distributed with the aperture of more than 2, little number of perforations depends on the segmentation resolution that main shaft is measured, if be subdivided into 2^n doubly, then little number of perforations is 2^ (n+1), and namely the laser of the second lasing light emitter injected in driving wheel code value disposal system by this aperture.
Another kind as the technical program improves, and described first lasing light emitter is single beam laser source; The light source beam number of described second lasing light emitter is corresponding with number of perforations little on driving wheel, and meanwhile, the laser that this second lasing light emitter produces wants the track that can produce when small holes is rotated.
Improve as another of the technical program, described photoresistance face battle array is for receiving the laser of described first lasing light emitter injection and being converted to analog voltage signal and outputting in described array signals processing system.
As the further improvement of the technical program, described driving wheel code value disposal system comprises laser pick-off module and signal processing module, and described laser pick-off module is for receiving the laser of described second lasing light emitter injection and being converted to analog voltage signal; The analog voltage signal that described signal processing module is used for laser pick-off module exports is converted to digital signal 1 or 0, be in particular and the analog voltage signal receiving the output of laser signal photosensitive unit is converted to digital signal 1, the analog voltage signal that the photosensitive unit not receiving laser signal exports is converted to digital signaling zero, thus draw the second code value, and this second code value is transferred in the array signals processing system of face.
Described array signals processing system comprises signal conversion module, photosensitive pixel address acquisition circuit and Angle Position acquisition cuicuit, the analog voltage signal that this signal conversion module is used for photoresistance face battle array exports is converted to digital signal 1 or 0, form the first code value, this photosensitive pixel address acquisition circuit obtains photosensitive photosensitive pixel address according to this first code value, comparing in this photosensitive pixel address and the second code value by this Angle Position acquisition cuicuit, draws the axle parallactic angle degree that this photosensitive pixel address is corresponding with the second code value.
In a word, the utility model compared with prior art, has following technical advantage:
The utility model utilizes mechanically operated mode to segment photoresistance face battle array code distinguishability, solve the problem bringing high cost because photoresistance face battle array is oversize, and photoresistance face battle array is integrated with a lot of light activated element, by having the coms light activated element that pixel dimension is 2.2um*2.2um on the market now.If the motion track radius of the laser of the first lasing light emitter is 5mm, then motion track one week total 14280 coms pixel, then the resolution of this scrambler is at least 360*3600/ (14280*4)=22 " (angular unit: rad), along with increasing of driving wheel aperture, resolution can reach higher level, and absolute type encoder common on the market generally has the resolution of 14, be 360/2^14=79 ", it can thus be appreciated that scrambler of the present utility model is compared with the scrambler of prior art, resolution can be crossed acquisition and significantly promote, obtain revolutionaryly progressive, without the need to special code-disc, manufacture processing cost greatly to reduce.
Accompanying drawing explanation
Fig. 1 is the structural representation of the photoresistance scrambler of the utility model machinery segmentation;
Fig. 2 is the side view of the photoresistance scrambler of the utility model machinery segmentation;
Fig. 3 is face array signals processing system schematic;
Fig. 4 is driving wheel code value process system schematic diagram.
Embodiment
Accompanying drawing, only for exemplary illustration, can not be interpreted as the restriction to this patent.
To those skilled in the art, in accompanying drawing, some known features and explanation thereof may be omitted is understandable.
Below in conjunction with drawings and Examples, be clearly and completely described the technical scheme in the utility model, obviously, described embodiment is only utility model part embodiment, instead of whole embodiments.Based on the embodiment in the utility model, those of ordinary skill in the art are not making the every other embodiment obtained under creative work prerequisite, all belong to the scope of the utility model protection.
As shown in Figure 1-2, for in the present embodiment based on the structural representation of photoresistance scrambler of machinery segmentation, comprise main shaft 1, described main shaft 1 is fixed with driving wheel 2, this driving wheel 2 is distributed with the aperture 21 of more than 2, engaged wheel 3 coordinates to install with this driving wheel 2 and is connected, engaged wheel 3 is driven to rotate by driving wheel 2, in the present embodiment, driving wheel 2 is 4 with the ratio of gear of engaged wheel 3, described engaged wheel 3 is fixed on driven shaft 4, described engaged wheel 3 is fixed with the first lasing light emitter 5, this lasing light emitter is single beam laser source, photoresistance face battle array 6 is positioned at the front of this first lasing light emitter 5, face array signals processing system 7 is connected with described photoresistance face battle array 6 and is positioned at the front of described photoresistance face battle array 6, as shown in Figure 3, this face array signals processing system 7 comprises signal conversion module 71 and photosensitive pixel address acquisition circuit 72, this signal conversion module 71 is converted to digital signal 1 or 0 for analog voltage signal photoresistance face battle array exported, be in particular and the analog voltage signal receiving the output of laser signal photosensitive unit is converted to digital signal 1, the analog voltage signal that the photosensitive unit not receiving laser signal exports is converted to digital signaling zero, thus form the first code value, this photosensitive pixel address acquisition circuit 72 obtains photosensitive photosensitive pixel address according to this first code value.
The light source beam number of the second lasing light emitter 8 is corresponding with number of perforations little on driving wheel, is positioned at the front of described driving wheel 2, and will ensure the track that the laser that this second lasing light emitter produces will be able to produce when small holes is rotated; Described driving wheel code value disposal system 9 is positioned at the rear of described driving wheel 2, as described in Figure 4, this driving wheel code value disposal system 9 comprises laser pick-off module 91 and signal processing module 92, and described laser pick-off module 91 is for receiving the laser of described second lasing light emitter injection and being converted to analog voltage signal; Described signal processing module 92 is converted to digital signal 1 or 0 for analog voltage signal laser pick-off module exported, be in particular and the analog voltage signal receiving the output of laser signal photosensitive unit is converted to digital signal 1, the analog voltage signal that the photosensitive unit not receiving laser signal exports is converted to digital signaling zero, thus forms the second code value; Again as shown in Figure 3, Angle Position acquisition cuicuit 73 is also comprised in this face array signals processing system 7, the photosensitive pixel address of record the second code value and photosensitive pixel address and Angle Position acquisition cuicuit 73 and the second code value carry out searching comparison, thus draw the Angle Position of measured axis.
Claims (2)
1. the photoresistance scrambler based on machinery segmentation, comprise main shaft, driven shaft, driving wheel, engaged wheel, first lasing light emitter, second lasing light emitter, photoresistance face battle array, face array signals processing system and driving wheel code value disposal system, it is characterized in that, described main shaft is fixed with driving wheel, engaged wheel and this driving wheel coordinate to install and are connected, described engaged wheel is fixedly installed on driven shaft, described engaged wheel is fixed with the first lasing light emitter, photoresistance face battle array is positioned at the front of this first lasing light emitter, face array signals processing system is connected with described photoresistance face battle array and is positioned at the front of described photoresistance face battle array, described second lasing light emitter is positioned at the front of described driving wheel, described driving wheel code value disposal system is positioned at the rear of described driving wheel, described driving wheel is distributed with the aperture of more than 2.
2. as claimed in claim 1 a kind of based on machinery segmentation photoresistance scrambler, it is characterized in that, described first lasing light emitter is single beam laser source, and the light source beam number of described second lasing light emitter is corresponding with little number of perforations on described driving wheel.
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| CN201520010520.0U CN204373674U (en) | 2015-01-08 | 2015-01-08 | A kind of photoresistance scrambler based on machinery segmentation |
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| CN201520010520.0U CN204373674U (en) | 2015-01-08 | 2015-01-08 | A kind of photoresistance scrambler based on machinery segmentation |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107894244A (en) * | 2017-12-27 | 2018-04-10 | 上海韦奇传感科技有限公司 | A kind of high-resolution photoelectric encoder |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107894244A (en) * | 2017-12-27 | 2018-04-10 | 上海韦奇传感科技有限公司 | A kind of high-resolution photoelectric encoder |
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| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20150603 Termination date: 20170108 |
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| CF01 | Termination of patent right due to non-payment of annual fee |