CN208720997U - A kind of flat-type workpiece size detection system based on machine vision - Google Patents
A kind of flat-type workpiece size detection system based on machine vision Download PDFInfo
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- CN208720997U CN208720997U CN201821531461.1U CN201821531461U CN208720997U CN 208720997 U CN208720997 U CN 208720997U CN 201821531461 U CN201821531461 U CN 201821531461U CN 208720997 U CN208720997 U CN 208720997U
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- backlight source
- collimated backlight
- mobile mechanism
- machine vision
- flat
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Abstract
The flat-type workpiece size detection system based on machine vision that the utility model discloses a kind of, including computer processing terminal, objective table, mobile mechanism, collimated backlight source, telecentric lens and Image Acquisition camera, the mobile mechanism is mounted on objective table, the collimated backlight source is arranged in sample to be tested bottom, the mobile mechanism drives sample to be tested and collimated backlight source to move horizontally simultaneously, the light beam of the collimated backlight source output enters Image Acquisition camera internal by telecentric lens, described image acquires camera and is communicated to connect by Ethernet and computer processing terminal.The utility model exports collimated light beam by collimated backlight source, vision inspection apparatus is formed using telecentric lens and Image Acquisition camera, collimated backlight source and mobile mechanism is cooperated to carry out Image Acquisition, image procossing is carried out using image segmentation, image mosaic scheduling algorithm, quickly judge whether workpiece is qualified, realizes real-time measurement and monitoring.
Description
Technical field
The utility model relates to workpiece size detection technique fields, more specifically to a kind of flat based on machine vision
Plate type part size detecting system.
Background technique
In the industrial production, the actual measurement size of workpiece is the important evidence for judging whether its quality is up to standard, controls part
Size is to guarantee the important means of quality of finished in the error range of design.With the development of technology, market is to workpiece size
Required precision it is higher and higher.
Existing workpiece size detection mode has following four classes.The first is artificial detection, and worker uses vernier caliper etc.
Traditional measurement instrument is completed to groundworks such as the detections, analysis and judgement of part size specification, and this contact type measurement is easy
Defective work piece consumes a large amount of manpower and material resources, while measurement accuracy is low, and artificial detection judges that the qualified or not error of product is larger,
Reliability is low, and production efficiency is caused to reduce；Second method is pneumatic type method, and size signal is converted measurement pipeline by this method
The variation of interior gas flow, and by pneumatic-to-current converter, gas signal is converted into electric signal, is shown by the light beam that luminous tube forms
Value, or by the buoy indicating value in graduated glass tube, although electronics pillar pneumatic measuring instrument be can automatically detect, but be not easy
Realize electro-pneumatic, measurement target has limitation, at high cost；The third method is sensor measurement, for example, application No. is
CN201510591207 discloses a kind of part size detection device, although this method precision improves, can only measure metal
Workpiece, mechanical device structure is complicated, configuration requirement is high, at high cost, and effective life is not grown；4th kind is machine vision side
Method, for example, Publication No. CN102538672A discloses one kind based on CMOS machine vision part dimension measurement system and measurement
The method of inspection, machine vision on-line measurement have many advantages, such as that equipment is simple, versatility is good, non-contact, easy to automate,
In the application of industrial detection, machine vision replaces rapidly artificial detection.But workpiece is detected using machine vision method at present
The technology of size is less, is not able to satisfy the market demand.
But technical solution in the prior art has the following deficiencies: the full-scale survey that can not achieve to the big workpiece of flat-type
Amount, is unable to satisfy the processing demand being increasingly urgent to；Accurate ginseng can not achieve to the through-hole of specific shapes various on workpiece
Number measurement and real-time monitoring.
Utility model content
Technical problem to be solved by the utility model is: how to realize the automated high-precision inspection to flat-type workpiece size
It surveys.
The solution that the utility model solves its technical problem is:
A kind of flat-type workpiece size detection system based on machine vision, including computer processing terminal, objective table, movement
Mechanism, collimated backlight source, telecentric lens and Image Acquisition camera, the mobile mechanism are mounted on objective table, described parallel
Backlight is arranged in sample to be tested bottom, and the mobile mechanism drives sample to be tested and collimated backlight source to move horizontally simultaneously,
The light beam of the collimated backlight source output enters Image Acquisition camera internal by telecentric lens, and it is logical that described image acquires camera
It crosses Ethernet and computer processing terminal communicates to connect.
As a further improvement of the above technical scheme, the mobile mechanism include motor, motor driver, screw axis with
And feed screw nut, the computer processing terminal output end and motor driver are electrically connected, the motor driver and motor electricity
Property connection, motor driven screw axis rotation, screw axis rotation drives feed screw nut to move along screw axis simultaneously, parallel back
Light source and sample to be tested are mounted on feed screw nut.
As a further improvement of the above technical scheme, the motor is stepper motor.
As a further improvement of the above technical scheme, described image acquisition camera is CCD camera.
The beneficial effects of the utility model are: the utility model exports collimated light beam by collimated backlight source, telecentricity is utilized
Camera lens and Image Acquisition camera form vision inspection apparatus, cooperate collimated backlight source and mobile mechanism to carry out Image Acquisition, fastly
Speed judges whether workpiece is qualified, realizes real-time measurement and monitoring.
Detailed description of the invention
It, below will be to required in embodiment description in order to illustrate more clearly of the technical scheme in the embodiment of the utility model
Attached drawing to be used is briefly described.Obviously, described attached drawing is a part of the embodiment of the utility model, rather than complete
Portion's embodiment, those skilled in the art without creative efforts, can also be obtained according to these attached drawings it
His design scheme and attached drawing.
Fig. 1 is the apparatus structure schematic diagram of the utility model.
Specific embodiment
It is carried out below with reference to technical effect of the embodiment and attached drawing to the design of the utility model, specific structure and generation
It clearly and completely describes, to be completely understood by the purpose of this utility model, feature and effect.Obviously, described embodiment
It is a part of the embodiment of the utility model, rather than whole embodiments, it is based on the embodiments of the present invention, the skill of this field
Art personnel other embodiments obtained without creative efforts belong to the model of the utility model protection
It encloses.In addition, all connection relationships being previously mentioned in text, not singly refer to that component directly connects, and referring to can be according to specific implementation feelings
Condition, by adding or reducing connection auxiliary, Lai Zucheng more preferably connection structure.Each technical characteristic in the utility model,
It can be with combination of interactions under the premise of not conflicting conflict.
Referring to Fig.1, the flat-type workpiece size detection system based on machine vision that the utility model discloses a kind of, including
Computer processing terminal 1, objective table 2, mobile mechanism, collimated backlight source 4, telecentric lens 5 and Image Acquisition camera 6, the shifting
Motivation structure is mounted on objective table 2, and the collimated backlight source 4 is arranged in sample to be tested bottom, and the mobile mechanism drives simultaneously
Sample to be tested and collimated backlight source 4 move horizontally, and the light beam that the collimated backlight source 4 exports is entered by telecentric lens 5
Inside Image Acquisition camera 6, described image acquires camera 6 and is communicated to connect by Ethernet and computer processing terminal 1.Specifically,
The utility model exports collimated light beam by collimated backlight source 4, forms vision using telecentric lens 5 and Image Acquisition camera 6
Detection device cooperates collimated backlight source 4 and mobile mechanism to carry out Image Acquisition, using image segmentation, image mosaic scheduling algorithm into
Row image procossing quickly judges whether workpiece is qualified, realizes real-time measurement and monitoring.
It is further used as preferred embodiment, in specific embodiment of the present invention, the mobile mechanism includes electricity
Machine 31, motor driver, screw axis 32 and feed screw nut 33,1 output end of computer processing terminal and motor driver electricity
Property connection, the motor driver and motor 31 be electrically connected, and 31 drive screw shaft 32 of the motor rotation, screw axis 32 rotates
Feed screw nut 33 is driven to move along screw axis 32 simultaneously, collimated backlight source 4 and sample to be tested are mounted on feed screw nut 33.
In addition the mobile mechanism can also use ball linear guide to realize locomotive function, by collimated backlight source 4 and
Sample to be tested is loaded on the sliding block of ball linear guide, and the locomotive function to realize sliding block is being driven using motor.
It is further used as preferred embodiment, in specific embodiment of the present invention, the motor 31 is stepping electricity
Machine, the motor driver include model DRV8825 driving chip and its peripheral circuit, and the driving chip of the model can
It controls stepper motor and realizes forward and reverse rotation, while controlling precision height, peripheral circuit structure is simple.
It is further used as preferred embodiment, in specific embodiment of the present invention, described image acquisition camera 6 is
CCD camera effectively improves the Image Acquisition quality to sample to be tested by the CCD camera.
The better embodiment of the utility model is illustrated above, but the utility model be not limited to it is described
Embodiment, those skilled in the art can also make various equivalent changes without departing from the spirit of the present invention
Type or replacement, these equivalent variation or replacement are all included in the scope defined by the claims of the present application.
Claims (4)
1. a kind of flat-type workpiece size detection system based on machine vision, it is characterised in that: including computer processing terminal
(1), objective table (2), mobile mechanism, collimated backlight source (4), telecentric lens (5) and Image Acquisition camera (6), the movement
Mechanism is mounted on objective table (2), and mobile mechanism's driving collimated backlight source (4) moves horizontally, the collimated backlight source (4)
It is internal that the light beam of output by telecentric lens (5) enters Image Acquisition camera (6), described image acquire camera (6) by with
Too net and computer processing terminal (1) communicate to connect.
2. a kind of flat-type workpiece size detection system based on machine vision according to claim 1, it is characterised in that:
The mobile mechanism includes motor (31), motor driver, screw axis (32) and feed screw nut (33), and the computer processing is eventually
(1) output end and motor driver is held to be electrically connected, the motor driver and motor (31) are electrically connected, the motor (31)
Drive screw shaft (32) rotation, screw axis (32) rotate while driving feed screw nut (33) mobile along screw axis (32), in parallel
Backlight (4) and sample to be tested are mounted on feed screw nut (33).
3. a kind of flat-type workpiece size detection system based on machine vision according to claim 2, it is characterised in that:
The motor (31) is stepper motor.
4. a kind of flat-type workpiece size detection system based on machine vision according to claim 1, it is characterised in that:
It is CCD camera that described image, which acquires camera (6),.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201821531461.1U CN208720997U (en) | 2018-09-18 | 2018-09-18 | A kind of flat-type workpiece size detection system based on machine vision |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201821531461.1U CN208720997U (en) | 2018-09-18 | 2018-09-18 | A kind of flat-type workpiece size detection system based on machine vision |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN208720997U true CN208720997U (en) | 2019-04-09 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201821531461.1U Expired - Fee Related CN208720997U (en) | 2018-09-18 | 2018-09-18 | A kind of flat-type workpiece size detection system based on machine vision |
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Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109211110A (en) * | 2018-09-18 | 2019-01-15 | 佛山科学技术学院 | A kind of flat-type workpiece size detection system and method based on machine vision |
| CN110349174A (en) * | 2019-06-28 | 2019-10-18 | 佛山科学技术学院 | A kind of sliding rail Multi-parameter Measurement Method and measuring device |
-
2018
- 2018-09-18 CN CN201821531461.1U patent/CN208720997U/en not_active Expired - Fee Related
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109211110A (en) * | 2018-09-18 | 2019-01-15 | 佛山科学技术学院 | A kind of flat-type workpiece size detection system and method based on machine vision |
| CN110349174A (en) * | 2019-06-28 | 2019-10-18 | 佛山科学技术学院 | A kind of sliding rail Multi-parameter Measurement Method and measuring device |
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| Date | Code | Title | Description |
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| GR01 | Patent grant | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20190409 Termination date: 20200918 |
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| CF01 | Termination of patent right due to non-payment of annual fee |