CN121521756A - A fully automatic mobile phone screen defect detection device - Google Patents
A fully automatic mobile phone screen defect detection deviceInfo
- Publication number
- CN121521756A CN121521756A CN202610031101.8A CN202610031101A CN121521756A CN 121521756 A CN121521756 A CN 121521756A CN 202610031101 A CN202610031101 A CN 202610031101A CN 121521756 A CN121521756 A CN 121521756A
- Authority
- CN
- China
- Prior art keywords
- detection
- box
- mobile phone
- sliding
- phone screen
- 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.)
- Granted
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- G—PHYSICS
- G01—MEASURING; TESTING
- G01N—INVESTIGATING OR ANALYSING MATERIALS BY DETERMINING THEIR CHEMICAL OR PHYSICAL PROPERTIES
- G01N21/00—Investigating or analysing materials by the use of optical means, i.e. using sub-millimetre waves, infrared, visible or ultraviolet light
- G01N21/01—Arrangements or apparatus for facilitating the optical investigation
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B08—CLEANING
- B08B—CLEANING IN GENERAL; PREVENTION OF FOULING IN GENERAL
- B08B1/00—Cleaning by methods involving the use of tools
- B08B1/10—Cleaning by methods involving the use of tools characterised by the type of cleaning tool
- B08B1/16—Rigid blades, e.g. scrapers; Flexible blades, e.g. wipers
- B08B1/165—Scrapers
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B08—CLEANING
- B08B—CLEANING IN GENERAL; PREVENTION OF FOULING IN GENERAL
- B08B1/00—Cleaning by methods involving the use of tools
- B08B1/30—Cleaning by methods involving the use of tools by movement of cleaning members over a surface
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B08—CLEANING
- B08B—CLEANING IN GENERAL; PREVENTION OF FOULING IN GENERAL
- B08B5/00—Cleaning by methods involving the use of air flow or gas flow
- B08B5/02—Cleaning by the force of jets, e.g. blowing-out cavities
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B08—CLEANING
- B08B—CLEANING IN GENERAL; PREVENTION OF FOULING IN GENERAL
- B08B5/00—Cleaning by methods involving the use of air flow or gas flow
- B08B5/04—Cleaning by suction, with or without auxiliary action
-
- G—PHYSICS
- G01—MEASURING; TESTING
- G01N—INVESTIGATING OR ANALYSING MATERIALS BY DETERMINING THEIR CHEMICAL OR PHYSICAL PROPERTIES
- G01N1/00—Sampling; Preparing specimens for investigation
- G01N1/28—Preparing specimens for investigation including physical details of (bio-)chemical methods covered elsewhere, e.g. G01N33/50, C12Q
- G01N1/34—Purifying; Cleaning
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- G—PHYSICS
- G01—MEASURING; TESTING
- G01N—INVESTIGATING OR ANALYSING MATERIALS BY DETERMINING THEIR CHEMICAL OR PHYSICAL PROPERTIES
- G01N21/00—Investigating or analysing materials by the use of optical means, i.e. using sub-millimetre waves, infrared, visible or ultraviolet light
- G01N21/84—Systems specially adapted for particular applications
- G01N21/88—Investigating the presence of flaws or contamination
- G01N21/8806—Specially adapted optical and illumination features
-
- G—PHYSICS
- G01—MEASURING; TESTING
- G01N—INVESTIGATING OR ANALYSING MATERIALS BY DETERMINING THEIR CHEMICAL OR PHYSICAL PROPERTIES
- G01N21/00—Investigating or analysing materials by the use of optical means, i.e. using sub-millimetre waves, infrared, visible or ultraviolet light
- G01N21/84—Systems specially adapted for particular applications
- G01N21/88—Investigating the presence of flaws or contamination
- G01N21/8851—Scan or image signal processing specially adapted therefor, e.g. for scan signal adjustment, for detecting different kinds of defects, for compensating for structures, markings, edges
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- G—PHYSICS
- G01—MEASURING; TESTING
- G01N—INVESTIGATING OR ANALYSING MATERIALS BY DETERMINING THEIR CHEMICAL OR PHYSICAL PROPERTIES
- G01N21/00—Investigating or analysing materials by the use of optical means, i.e. using sub-millimetre waves, infrared, visible or ultraviolet light
- G01N21/84—Systems specially adapted for particular applications
- G01N21/88—Investigating the presence of flaws or contamination
- G01N21/95—Investigating the presence of flaws or contamination characterised by the material or shape of the object to be examined
- G01N21/958—Inspecting transparent materials or objects, e.g. windscreens
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- Health & Medical Sciences (AREA)
- Life Sciences & Earth Sciences (AREA)
- Pathology (AREA)
- General Health & Medical Sciences (AREA)
- Immunology (AREA)
- Physics & Mathematics (AREA)
- Chemical & Material Sciences (AREA)
- Analytical Chemistry (AREA)
- Biochemistry (AREA)
- General Physics & Mathematics (AREA)
- Engineering & Computer Science (AREA)
- Biomedical Technology (AREA)
- Molecular Biology (AREA)
- Computer Vision & Pattern Recognition (AREA)
- Signal Processing (AREA)
- Cleaning In General (AREA)
Abstract
The invention relates to the technical field of detection equipment, in particular to a full-automatic mobile phone screen defect detection device which comprises a conveying belt, wherein a support frame is transversely arranged above the conveying belt, a sliding frame is arranged on the support frame in a linear driving mode, an adsorption mechanism is arranged on the sliding frame in a lifting mode, a detection box is fixedly arranged on one side of the conveying belt, a detection table for detecting a mobile phone screen is arranged on the detection box, an opening is arranged above the detection box, a sliding box is slidably arranged above the detection box, an opening is arranged below the sliding box, a detection camera for detecting images of the mobile phone screen in the detection table is fixedly arranged inside the sliding box, one side of the sliding box is fixedly connected with the sliding frame, and a scraping plate is arranged inside the sliding box.
Description
Technical Field
The invention relates to the technical field of detection equipment, in particular to a full-automatic mobile phone screen defect detection device.
Background
The mobile phone screen is fixed (usually through glue adhesion each other) between gland operation and the mobile phone support when production, after the gland is accomplished, in order to avoid appearing unqualified product inflow market, can generally use automatic defect detection device to carry out quality detection (adopt to shoot the mobile phone screen and gather, and then judge whether there is the defect) to the mobile phone screen behind the gland, but in the production process, because glue adhesion each other is usually passed through between screen and the support, in the production process, can not remain glue (especially around the mobile phone screen) on the mobile phone screen, these remaining glue can influence the judgement of computer to the image of gathering at mobile phone screen defect detection's in-process.
Disclosure of Invention
Aiming at the defects existing in the prior art, the invention provides a full-automatic mobile phone screen defect detection device, which can effectively solve the problem that in the prior art, because the screens and the supports are adhered to each other through glue, glue residues on the mobile phone screen are unavoidable in the production process, and the residual glue influences the judgment of a computer on the acquired images in the mobile phone screen defect detection process.
In order to achieve the above purpose, the invention is realized by the following technical scheme:
The invention provides a full-automatic mobile phone screen defect detection device, which comprises a conveying belt, wherein a support frame is transversely arranged above the conveying belt, a sliding frame is arranged on the support frame in a linear driving manner, an adsorption mechanism is arranged on the sliding frame in a lifting manner, a detection box is fixedly arranged on one side of the conveying belt, a detection table for detecting a mobile phone screen is arranged on the detection box, and the adsorption mechanism is used for placing the mobile phone screen on the conveying belt on the detection table;
the detection device comprises a detection box, a detection camera, a detection table and a control system, wherein an opening is formed in the upper part of the detection box, a sliding box is slidably installed above the detection box, an opening is formed in the lower part of the sliding box, and the detection camera for detecting images of a mobile phone screen in the detection table is fixedly installed in the sliding box;
One side of the sliding box is fixedly connected with the sliding frame, a scraping plate used for scraping glue on the surface of the mobile phone screen is arranged in the sliding box, and the surface of the mobile phone screen is treated before an image is acquired by the detection camera in the sliding process of the sliding box from the detection table to the direction of the conveying belt.
Further, the inside fixed mounting of slip case has the mounting panel, detection camera fixed mounting is kept away from one side of carriage in the mounting panel middle part, scraper blade lift is installed under the mounting panel.
Further, all be provided with the guide way on the inside both sides that detects the case and face each other, the equal fixed mounting in both sides of scraper blade is used for at the inside gliding guide bar of guide way, when the scraper blade slides to the carriage direction, the guide way drives the scraper blade and moves down, the top fixed mounting of scraper blade has the slide bar, the slide bar upper end pass the mounting panel and with mounting panel sliding connection, the outside cover of slide bar is equipped with the elastic component that is used for driving the scraper blade and keeps away from the mounting panel.
Further, be provided with the detection groove that supplies the cell-phone screen to put into on the detection platform, the detection groove is kept away from one side middle part of carriage and is provided with first nozzle, the detection groove all is provided with dust collection groove towards the one end both sides of carriage, two fixed mounting has the backup pad between the dust collection groove, and the backup pad up end flushes with the detection groove bottom, the both sides of backup pad all are provided with the second nozzle, first nozzle and second nozzle are used for blowing in dust or granule dust collection groove.
Further, the dust collection box is fixedly arranged below the detection box, a communication channel is arranged above the dust collection box and is communicated with the inside of the dust collection box, and the communication channel penetrates through the bottoms of the detection box and the detection table and is communicated with the inside of the dust collection groove.
Further, the dust collection box middle part is provided with the baffle, the baffle includes vertical section and slope section, the top orientation of slope section is kept away from communication channel below opening one side slope, be provided with a plurality of intercommunication through-holes on the baffle.
Further, the detection box is kept away from one side fixed mounting of carriage and has the pneumatic cylinder, the inside slidable mounting of pneumatic cylinder has the piston, the coaxial fixed mounting in one side that the carriage was kept away from to the piston has the pneumatic lever, the pneumatic cylinder is stretched out to the other end of pneumatic lever, the outlet duct is installed in the top intercommunication of pneumatic cylinder, the outlet duct communicates with first nozzle and second nozzle respectively, the pneumatic lever is used for squeezing into the outlet duct with pneumatic cylinder inner wall air.
Further, the outside cover of pneumatic rod is equipped with reset spring, reset spring is used for driving the pneumatic rod to the direction that keeps away from the carriage and resets, the slip case is when the carriage drives down to the conveyer belt direction and remove, the inner wall of slip case supports one end on the pneumatic rod, drives pneumatic rod compressed air in the pneumatic cylinder.
Further, the air inlet pipe is installed in the lower portion of the pneumatic cylinder in a communicating mode, the other end of the air inlet pipe is communicated with the inside of the dust collection box, and the air inlet pipe is used for extracting air from the inside of the dust collection box when the pneumatic rod stretches out of the pneumatic cylinder.
Compared with the known public technology, the technical scheme provided by the invention has the following beneficial effects:
According to the invention, the scraping plates are arranged in the sliding box, when the defects of the mobile phone screen are required to be detected, the mobile phone screens to be detected are sequentially placed on the conveying belt, when the mobile phone screens move to the lower part of the adsorption mechanism, the adsorption mechanism moves downwards to adsorb the mobile phone screens below the adsorption mechanism, then the sliding frame drives the adsorption mechanism and the mobile phone screens to move towards the direction of the detection box, the mobile phone screens are placed on the detection table, and then the sliding frame drives the adsorption mechanism to return to the position right above the conveying belt.
According to the invention, the first nozzle and the second nozzle are respectively arranged at the front side and the rear side of the detection groove, after the detected mobile phone screen is taken out from the detection table, the gas can be respectively sprayed out from the first nozzle and the second nozzle by supplying the gas into the first nozzle and the second nozzle, so that the scraped glue falls into the dust collection groove, the scraps can be conveniently collected, and the scraped glue is prevented from being remained in the detection groove to influence the placement of the mobile phone screen.
According to the invention, the pneumatic cylinder is arranged on one side of the detection box, the pneumatic rod is slidably arranged at one end of the pneumatic cylinder far away from the conveying belt, when the pneumatic rod moves towards the conveying belt, the piston can be driven to squeeze air in the pneumatic cylinder, so that the air in the pneumatic cylinder enters the air outlet pipe and is respectively discharged from the first nozzle and the second nozzle, and when the pneumatic rod moves towards the direction far away from the conveying belt, the pneumatic rod drives the piston to slide in the pneumatic cylinder, so that negative pressure is generated in the pneumatic cylinder, the air inlet pipe is enabled to extract air from the dust collection box, and glue or dust in the dust collection groove can be completely sucked into the dust collection box.
Drawings
In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the drawings used in the description of the embodiments or the prior art will be briefly described below. It is evident that the drawings in the following description are only some embodiments of the present invention and that other drawings may be obtained from these drawings without inventive effort for a person of ordinary skill in the art.
FIG. 1 is a schematic diagram of the overall structure of the present invention;
FIG. 2 is a schematic diagram of the internal structure of the detection box according to the present invention;
FIG. 3 is a schematic illustration of the present invention with the conveyor belt removed;
FIG. 4 is a schematic view of the overall structure of the inside of the detection box according to the present invention;
FIG. 5 is a side view of the inspection station and pneumatic cylinder of the present invention;
FIG. 6 is a schematic diagram of the overall structure of the inspection station according to the present invention;
fig. 7 is a schematic view of the internal structure of the dust collection box of the invention.
Reference numerals in the drawings represent respectively:
1. a conveyor belt; 2, a supporting frame, 21, a sliding frame, 3, an adsorption mechanism;
4. The device comprises a detection box, 401, a guide groove, 41, a detection table, 4101, a detection groove, 4102, a dust collection groove, 42, a first nozzle, 43, a support plate, 431, a second nozzle, 44, a dust collection box, 441, a communication channel, 442, a baffle, 45, a mounting plate, 451, a detection camera, 46, a scraper, 461, a slide bar, 462, an elastic piece, 463 and a guide rod;
5. 51, a pneumatic cylinder, 511, a pneumatic rod, 512, a return spring, 52, an air outlet pipe, 53 and an air inlet pipe.
Detailed Description
In order to make the objects, technical solutions and advantages of the embodiments of the present invention more clear, the technical solutions of the embodiments of the present invention will be clearly and completely described below with reference to the accompanying drawings in the embodiments of the present invention. It will be apparent that the described embodiments are some, but not all, embodiments of the invention. All other embodiments, which can be made by those skilled in the art based on the embodiments of the invention without making any inventive effort, are intended to be within the scope of the invention.
The invention is further described below with reference to examples.
The embodiment of the device for detecting the defects of the mobile phone screen comprises a conveying belt 1, wherein a supporting frame 2 is transversely arranged above the conveying belt 1, a sliding frame 21 is arranged on the supporting frame 2 in a linear driving mode, an adsorption mechanism 3 is arranged on the sliding frame 21 in a lifting mode, a detection box 4 is fixedly arranged on one side of the conveying belt 1, a detection table 41 for detecting the mobile phone screen is arranged on the detection box 4, and the adsorption mechanism 3 is used for placing the mobile phone screen on the conveying belt 1 on the detection table 41;
the upper opening of the detection box 4 is arranged, a sliding box 5 is slidably installed above the detection box 4, the lower opening of the sliding box 5 is arranged, a detection camera 451 for detecting images of a mobile phone screen in the detection table 41 is fixedly installed inside the sliding box 5 (usually a CCD or CMOS industrial camera is used, the resolution is extremely high (tens of millions of pixels) and defects at sub-pixel level can be captured);
One side of the sliding box 5 is fixedly connected with the sliding frame 21, a scraping plate 46 for scraping glue on the surface of the mobile phone screen is arranged inside the sliding box 5, and the scraping plate 46 processes the surface of the mobile phone screen before the image is collected by the detection camera 451 in the sliding process of the sliding box 5 from the detection table 41 to the direction of the conveying belt 1.
According to the embodiment, the scraping plates 46 are arranged in the sliding box 5, when the defects of the mobile phone screen are required to be detected, the plurality of mobile phone screens to be detected are sequentially placed on the conveying belt 1, when the mobile phone screen moves to the lower side of the adsorption mechanism 3, the adsorption mechanism 3 moves downwards to adsorb the mobile phone screen to the lower side of the adsorption mechanism 3, then the sliding frame 21 drives the adsorption mechanism 3 and the mobile phone screen to move towards the direction of the detection box 4, the mobile phone screen is placed on the detection table 41, then the sliding frame 21 drives the adsorption mechanism 3 to return to the position right above the conveying belt 1, in the process, the sliding frame 21 synchronously drives the sliding box 5 to move towards the direction of the conveying belt 1, so that the scraping plates 46 and the detection cameras 451 in the sliding box 5 sequentially pass through the upper side of the mobile phone screen, and when the scraping plates 46 pass through the upper side of the mobile phone screen, residual glue on the surface of the mobile phone screen can be scraped (meanwhile dust or particles left on the mobile phone screen can be scraped), the quality of collected photos is prevented, and the defects of the surface of the mobile phone screen are detected more accurately.
In addition, after the detection of the mobile phone screen is completed, the adsorption mechanism 3 moves to the upper side of the detection table 41 again, adsorbs the mobile phone screen, and then drives the mobile phone screen to move to the upper side of the conveying belt 1 through the adsorption mechanism 3, so that the mobile phone screen is replaced on the conveying belt 1.
It should be noted that, the working principle of performing image acquisition and detection on the surface of the mobile phone screen through the detection camera 451 is that the image acquisition, the image preprocessing to optimize the quality, the defect positioning and identification by using the traditional or deep learning algorithm, the classification and the severity assessment of the defect based on the characteristics, and the final quality inspection decision making and the output of the result are all common technologies in the prior art, so the description of the working principle is omitted here.
Further, the mounting plate 45 is fixedly mounted in the sliding box 5, the detection camera 451 is fixedly mounted at one side, far away from the sliding frame 21, of the middle part of the mounting plate 45, the scraping plate 46 is installed under the mounting plate 45 in a lifting mode, the detection camera 451 is located at one side, far away from the sliding frame 21, of the mounting plate 45, and in the process that the sliding frame 21 drives the adsorption mechanism 3 to move from the detection box 4 to the position right above the conveying belt 1, after the scraping plate 46 passes over a mobile phone screen, the detection camera 451 can collect images of the mobile phone screen.
The detection box 4 all is provided with guide way 401 in the both sides inside of mutual orientation, the both sides of scraper blade 46 are all fixed mounting and are used for at the inside gliding guide bar 463 of guide way 401, when scraper blade 46 slides to carriage 21 direction, guide way 401 drives scraper blade 46 and moves down, the top fixed mounting of scraper blade 46 has slide bar 461, slide bar 461 upper end pass mounting panel 45 and with mounting panel 45 sliding connection, the outside cover of slide bar 461 is equipped with the elastic component 462 that is used for driving scraper blade 46 and keeps away from mounting panel 45.
Wherein, through setting up guide slot 401 on the inner wall of detection case 4 to set up the guide bar 463 respectively at the both ends of scraper blade 46, in the scraper blade 46 follow the in-process that the slip case 5 was removed to conveyer belt 1 direction from the side that detection case 4 kept away from conveyer belt 1, can drive scraper blade 46 and remove a certain distance downwards, make a plurality of doctor-bars below the scraper blade 46 paste on the cell-phone screen.
Further, a detection groove 4101 for placing a mobile phone screen is formed in the detection table 41, a first nozzle 42 is arranged in the middle of one side, far away from the sliding frame 21, of the detection groove 4101, dust collection grooves 4102 are formed in two sides of one end, facing the sliding frame 21, of the detection groove 4101, a support plate 43 is fixedly mounted between the two dust collection grooves 4102, the upper end face of the support plate 43 is flush with the bottom of the detection groove 4101, second nozzles 431 are arranged in two sides of the support plate 43, and the first nozzle 42 and the second nozzle 431 are used for blowing dust or particles into the dust collection grooves 4102.
Wherein, through setting up first nozzle 42 and second nozzle 431 respectively in the front side (the side that keeps away from conveyer belt 1) and the rear side (the side that is close to conveyer belt 1) of detecting groove 4101, after detecting the cell-phone screen of accomplishing and taking out from detecting bench 41, through supplying gas to first nozzle 42 and second nozzle 431 inside, can make gas spout respectively from first nozzle 42 and second nozzle 431 department for the glue of scraping off falls into dust collection groove 4102 inside, conveniently collects these piece, avoids the glue of scraping off to stay in detecting groove 4101 inside, influences the placing of cell-phone screen.
The dust collection box 44 is fixedly arranged below the detection box 4, a communication channel 441 is arranged above the dust collection box 44, the communication channel 441 is communicated with the inside of the dust collection box 44, the communication channel 441 passes through the bottoms of the detection box 4 and the detection table 41 and is communicated with the inside of the dust collection groove 4102, a partition plate 442 is arranged in the middle of the dust collection box 44, the partition plate 442 comprises a vertical section and an inclined section, the upper side of the inclined section is inclined towards one side far away from the lower opening of the communication channel 441, and a plurality of communication through holes are formed in the partition plate 442.
Wherein, through setting up dust collection box 44 in the below that detects case 4, can make the glue that falls into dust collection tank 4102 inside (having solidified, can not take place the adhesion) drop into dust collection box 44 inside, can be more smooth carry out unified collection to the glue, through setting up baffle 442 in the inside of dust collection box 44, can lead the drop position of glue, conveniently unify the glue of depositing the collection.
Further, a pneumatic cylinder 51 is fixedly installed on one side of the detection box 4 far away from the sliding frame 21, a piston is slidably installed in the pneumatic cylinder 51, a pneumatic rod 511 is fixedly installed on one side of the piston far away from the sliding frame 21 coaxially, the other end of the pneumatic rod 511 extends out of the pneumatic cylinder 51, an air outlet pipe 52 is installed above the pneumatic cylinder 51 in a communicating mode, the air outlet pipe 52 is respectively communicated with the first nozzle 42 and the second nozzle 431, the pneumatic rod 511 is used for extruding air on the inner wall of the pneumatic cylinder 51 into the air outlet pipe 52, a reset spring 512 is sleeved on the outer side of the pneumatic rod 511, the reset spring 512 is used for driving the pneumatic rod 511 to reset in the direction far away from the sliding frame 21, and when the sliding box 5 is driven by the sliding frame 21 to move in the direction of the conveying belt 1, the inner wall of the sliding box 5 abuts against one end on the pneumatic rod 511 to drive the pneumatic rod 511 to compress the air inside the pneumatic cylinder 51.
Wherein, through setting up pneumatic cylinder 51 in detection case 4 one side, and at the one end slidable mounting pneumatic rod 511 that pneumatic cylinder 51 kept away from conveyer belt 1, when pneumatic rod 511 moves towards conveyer belt 1 direction (the whole carriage 21 that follows this moment moves towards being close to conveyer belt 1 middle part direction), can drive the inside air of piston extrusion pneumatic cylinder 51, make the inside air of pneumatic cylinder 51 enter into outlet duct 52 inside, and respectively follow first nozzle 42 and second nozzle 431 department and discharge, when pneumatic rod 511 moves towards keeping away from conveyer belt 1 direction (at this moment, sliding box 5 no longer supports pneumatic rod 511, pneumatic rod 511 resets under reset spring 512's effect), pneumatic rod 511 drives the inside slip of piston at pneumatic cylinder 51.
Still further, an air inlet pipe 53 is installed under the pneumatic cylinder 51, the other end of the air inlet pipe 53 is communicated with the inside of the dust collection box 44, and the air inlet pipe 53 is used for extracting air from the inside of the dust collection box 44 when the pneumatic rod 511 extends out of the pneumatic cylinder 51.
Wherein, through setting up intake pipe 53 below pneumatic cylinder 51, and with the other end and the inside intercommunication of dust collection box 44 of intake pipe 53, when pneumatic rod 511 moves towards keeping away from conveyer belt 1 direction (when sliding box 5 no longer supports pneumatic rod 511, pneumatic rod 511 resets under the effect of return spring 512), pneumatic rod 511 drives the piston and slides in pneumatic cylinder 51 inside, makes pneumatic cylinder 51 inside produce the negative pressure, make intake pipe 53 follow dust collection box 44 extraction gas, can be with glue or the dust inside dust collection tank 4102 completely inhale inside dust collection box 44.
The air inlet pipe 53 and the air outlet pipe 52 are provided with one-way valves to prevent the reverse flow of the air, and the direction of the arrow in fig. 5 is the air flow direction.
The mobile phone screen moving device comprises a support frame 2, a sliding frame 21, a conveying belt 1, an adsorption mechanism 3, a vacuum adsorption mechanism and the like, wherein the sliding frame 21 is arranged on the support frame 2 and is driven by a linear driving device to horizontally move to the upper side of the conveying belt 1 after the mobile phone screen reaches a preset position, and then the adsorption mechanism 3 is arranged on the sliding frame 21 in a lifting mode to grab the mobile phone screen in a vacuum adsorption mode and the like. Then, the adsorption mechanism 3 is lifted and driven by the sliding frame 21 to horizontally move to the position right above the detection table 41 above the detection box 4, and the mobile phone screen is accurately placed in the detection groove 4101 of the detection table 41;
When the slide box 5 starts to slide from the side of the detection table 41 to the side of the conveyor belt 1, the scrapers 46 fixed in the slide box start to work, the guide bars 463 at the two sides of the scrapers 46 slide along the guide grooves 401 at the side wall of the detection box 4, the special contour of the guide grooves 401 forces the guide bars 463 to be pressed down, the elastic force of the elastic piece 462 is overcome, the scrapers 46 are pushed to descend and contact the surface of the mobile phone screen in the detection groove 4101, the scrapers 46 scrape and clean glue or attachments on the surface of the screen along with the continuous movement of the slide box 5, and meanwhile, the mounting plate 45 is far away from the detection cameras 451 at the side of the conveyor belt 1 to collect images on the surface of the mobile phone screen;
After the image collection is completed, the carriage 21 drives the adsorption mechanism 3 to move towards the detection table 41 again, the detected mobile phone is taken out from the detection table 41 and put back onto the conveying belt, in the process, the carriage 5 moves towards the conveying belt 1, the inner wall of the carriage can press the air pressure rod 511 arranged on the outer side of the detection box 4 to push the air in the air pressure cylinder 51, the compressed air is conveyed to the first nozzle 42 and the second nozzle 431 on the detection table 41 through the air outlet pipe 52, the nozzles blow high-speed air flow to the detection groove 4101, particles scraped by the scraping plate 46 and original dust are blown to the dust collection groove 4102, and the dust and the particles blown into the dust collection groove 4102 finally fall into the dust collection box 44 through the communication channel 441.
In the process that the carriage 21 drives the adsorption mechanism 3 again to carry the mobile phone screen onto the detection table 41 (when the next working cycle is ready to be carried out), the air pressure rod 511 stretches out and resets under the action of the reset spring 512, negative pressure is generated inside the air pressure cylinder 51, air is extracted from the dust collection box 44 through the air inlet pipe 53, and then negative pressure is generated inside the dust collection groove 4102, so that glue and particulate matters can be sucked into the dust collection box.
Although the present invention has been described in detail with reference to the foregoing embodiments, it should be understood by those skilled in the art that the foregoing embodiments may be modified or equivalents may be substituted for some of the features thereof, and that the modification or substitution does not depart from the spirit and scope of the embodiments.
Claims (9)
1. The utility model provides a full-automatic mobile phone screen defect detection device, includes conveyer belt (1), transversely installs support frame (2) above conveyer belt (1), straight line drive installs carriage (21) on support frame (2), adsorption mechanism (3) are installed in the lift on carriage (21), a serial communication port, one side fixed mounting of conveyer belt (1) has detection case (4), be provided with on detection case (4) and be used for carrying out detection to mobile phone screen test table (41), adsorption mechanism (3) are used for placing mobile phone screen on conveyer belt (1) on detection table (41);
The detection device is characterized in that an opening is formed in the upper side of the detection box (4), a sliding box (5) is slidably arranged above the detection box (4), an opening is formed in the lower side of the sliding box (5), and a detection camera (451) for detecting images of a mobile phone screen in the detection table (41) is fixedly arranged in the sliding box (5);
One side of the sliding box (5) is fixedly connected with the sliding frame (21), a scraping plate (46) for scraping glue on the surface of a mobile phone screen is arranged in the sliding box (5), and the scraping plate (46) is used for processing the surface of the mobile phone screen before an image is acquired by the detection camera (451) in the sliding process of the sliding box (5) from the detection table (41) to the direction of the conveying belt (1).
2. The full-automatic mobile phone screen defect detection device according to claim 1, wherein a mounting plate (45) is fixedly mounted in the sliding box (5), the detection camera (451) is fixedly mounted on one side, far away from the sliding frame (21), of the middle part of the mounting plate (45), and the scraping plate (46) is mounted under the mounting plate (45) in a lifting mode.
3. The full-automatic mobile phone screen defect detection device according to claim 2, wherein guide grooves (401) are formed in two mutually-oriented sides of the detection box (4), guide rods (463) used for sliding in the guide grooves (401) are fixedly mounted on two sides of the scraping plates (46), when the scraping plates (46) slide towards the sliding frame (21), the guide grooves (401) drive the scraping plates (46) to move downwards, sliding rods (461) are fixedly mounted above the scraping plates (46), the upper ends of the sliding rods (461) penetrate through the mounting plates (45) and are in sliding connection with the mounting plates (45), and elastic pieces (462) used for driving the scraping plates (46) to be away from the mounting plates (45) are sleeved on the outer sides of the sliding rods (461).
4. The full-automatic mobile phone screen defect detection device according to claim 1, wherein a detection groove (4101) for placing a mobile phone screen is formed in the detection table (41), a first nozzle (42) is arranged in the middle of one side, far away from the sliding frame (21), of the detection groove (4101), dust collection grooves (4102) are formed in two sides of one end, facing the sliding frame (21), of the detection groove (4101), a support plate (43) is fixedly arranged between the two dust collection grooves (4102), the upper end face of the support plate (43) is flush with the bottom of the detection groove (4101), second nozzles (431) are arranged on two sides of the support plate (43), and the first nozzle (42) and the second nozzles (431) are used for blowing dust or particles into the dust collection grooves (4102).
5. The full-automatic mobile phone screen defect detection device according to claim 4, wherein a dust collection box (44) is fixedly installed below the detection box (4), a communication channel (441) is arranged above the dust collection box (44), the communication channel (441) is communicated with the inside of the dust collection box (44), and the communication channel (441) penetrates through the bottoms of the detection box (4) and the detection table (41) and is communicated with the inside of the dust collection groove (4102).
6. The full-automatic mobile phone screen defect detection device according to claim 5, wherein a partition plate (442) is arranged in the middle of the dust collection box (44), the partition plate (442) comprises a vertical section and an inclined section, the upper side of the inclined section is inclined towards one side far away from the lower opening of the communication channel (441), and a plurality of communication through holes are formed in the partition plate (442).
7. The full-automatic mobile phone screen defect detection device according to claim 6, wherein a pneumatic cylinder (51) is fixedly installed on one side, far away from the sliding frame (21), of the detection box (4), a piston is installed in the pneumatic cylinder (51) in a sliding mode, a pneumatic rod (511) is fixedly installed on one side, far away from the sliding frame (21), of the piston in a coaxial mode, the other end of the pneumatic rod (511) extends out of the pneumatic cylinder (51), an air outlet pipe (52) is installed above the pneumatic cylinder (51) in a communicating mode, the air outlet pipe (52) is respectively communicated with the first nozzle (42) and the second nozzle (431), and the pneumatic rod (511) is used for extruding air on the inner wall of the pneumatic cylinder (51) into the air outlet pipe (52).
8. The full-automatic mobile phone screen defect detection device according to claim 7, wherein a return spring (512) is sleeved on the outer side of the air pressure rod (511), the return spring (512) is used for driving the air pressure rod (511) to return towards a direction far away from the sliding frame (21), and when the sliding box (5) is driven by the sliding frame (21) to move towards the conveying belt (1), the inner wall of the sliding box (5) abuts against one end of the air pressure rod (511) to drive the air pressure rod (511) to compress air in the air pressure cylinder (51).
9. The full-automatic mobile phone screen defect detection device according to claim 8, wherein an air inlet pipe (53) is installed below the pneumatic cylinder (51) in a communicating manner, the other end of the air inlet pipe (53) is communicated with the inside of the dust collection box (44), and the air inlet pipe (53) is used for extracting air from the inside of the dust collection box (44) when the pneumatic rod (511) extends out of the pneumatic cylinder (51).
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