CN112255248B - Ink defect detection method for multiple lenses - Google Patents
Ink defect detection method for multiple lenses Download PDFInfo
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- CN112255248B CN112255248B CN202011486759.7A CN202011486759A CN112255248B CN 112255248 B CN112255248 B CN 112255248B CN 202011486759 A CN202011486759 A CN 202011486759A CN 112255248 B CN112255248 B CN 112255248B
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- 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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- G01M—TESTING STATIC OR DYNAMIC BALANCE OF MACHINES OR STRUCTURES; TESTING OF STRUCTURES OR APPARATUS, NOT OTHERWISE PROVIDED FOR
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Abstract
The invention discloses a method for detecting ink defects of multiple lenses, which adopts the following detection equipment comprising a feeding station, a carrying station, a detection station and a discharging station, and is characterized in that: the automatic lens detection device comprises a loading station, wherein the loading station comprises a loading platform, the loading platform is used for feeding and detecting multiple lenses, a carrying station is used for grabbing and carrying the multiple lenses, a detection station is used for detecting defects of the multiple lenses, a discharging station is used for carrying and sending out the multiple lenses, a first air cylinder and a second air cylinder are arranged on the two transverse sides of the loading platform, a fixed platform is arranged on one longitudinal side of the loading platform, a tray is fixed on the fixed platform, a lifting elevator is arranged on one side of the tray, a discharging belt is arranged on one side of the bottom of the lifting elevator, the carrying station is arranged on one side of the loading station, and the carrying station comprises a mechanical arm and a carrying shaft.
Description
Technical Field
The invention relates to the technical field of machine vision detection, in particular to a method for detecting ink defects of multiple lenses.
Background
The visual detection system uses an industrial camera to replace human eyes to complete the functions of identification, measurement, positioning and the like. The general visual detection system is formed by combining a camera, a lens and a light source, can replace manual work to finish detection of bar code characters, cracks, packages, complete surface layers, depressions and the like, can effectively improve the detection speed and precision of a production line by using the visual detection system, greatly improves the yield and quality, reduces the labor cost, and simultaneously prevents misjudgment caused by eye fatigue.
In the ink defect detection of multiple lenses, the traditional method is mostly artificial visual inspection, the efficiency is low, long-time work easily causes visual fatigue, the detection precision is low, and the part of the detection method which adopts machines is also low in detection precision because the machine function is simple, the detection method is common, the blocking often occurs, the detection speed is low, and the detection is incomplete.
Disclosure of Invention
The present invention is directed to a method for detecting ink defects in a multi-lens system, which solves the above problems.
In order to solve the technical problems, the invention provides the following technical scheme: the ink defect detection method of the multiple lenses adopts the following detection equipment, and the detection equipment comprises a feeding station, a carrying station, a detection station and a discharging station, and is characterized in that: the feeding station comprises a feeding table, the feeding table is used for feeding and detecting multiple lenses, the carrying station is used for grabbing and carrying the multiple lenses, the detecting station is used for detecting defects of the multiple lenses, and the discharging station is used for carrying out carrying and sending out of the multiple lenses; this device can be used to the full-automatic printing ink of multiple lens to detect, puts into the tray with multiple lens after, the fixed station department is sent into to the tray that snatchs of one dish of material loading station can be automatic, and the transport is got to the transport waiting for the detection station to the multiple lens clamp in the many trays of transport station afterwards, carries out the subregion to the lens after the detection and puts, has finally reached and need not artifical the detection, and labour saving and time saving accomplishes the effect of the detection of multiple lens fully automatically.
According to the technical scheme, the loading station comprises a loading platform, a first air cylinder and a second air cylinder are arranged on two transverse sides of the loading platform, a fixed platform is arranged on one longitudinal side of the loading platform, a tray is fixed on the fixed platform, a lifting elevator is arranged on one side of the tray, and a discharging belt is arranged on one side of the bottom of the lifting elevator; the first air cylinder lifts the tray and the second air cylinder extracts the tray at the bottommost layer, then the feeding table moves the tray to the fixing table to enable the mechanical wall to grab multiple lenses, and then the empty tray is conveyed to the lower layer from the elevator to be fed into the discharging belt, so that the function of full-automatic feeding is achieved.
According to the technical scheme, the carrying station is arranged on one side of the feeding station and comprises a mechanical arm and a carrying shaft, the mechanical arm comprises a base, a clamping plate, an image sensor and a light supplementing lamp, the base is used for fixing the mechanical arm, the clamping plate is used for grabbing multiple lenses, the image sensor is used for judging the position of a target, when the target is detected, the mechanical arm is controlled to take out parts from a tray, and the light supplementing lamp supplements light for the multiple lenses; the clamp plate of the mechanical arm is controlled to clamp multiple lenses after the watch in the image sensor locking tray is used for clamping and carrying the lenses, and the accurate stability of the lenses is guaranteed.
According to the technical scheme, the clamping plate comprises a first sensor, a second sensor, a clamping jaw and a clamping cylinder, wherein the first sensor is used for detecting whether a lens is arranged in the tray or not, if the lens drops during the transportation of the mechanical arm, the first sensor can transmit a detection abnormal signal to an image sensor, the image sensor can reposition multiple lenses, the image sensor is used for judging the positions of the clamping jaws and simultaneously determining the opening and closing states of the clamping jaws, and judging tracks according to the image sensor, if the signals do not accord with the signals of the image sensor, signal feedback is sent out, so that the clamping function of the clamping jaws is monitored, the clamping jaws are used for clamping the lens, the clamping cylinder is used for controlling the clamping and releasing of the clamping jaws, after the lens drops, the image sensor repositions the multiple lenses and controls the mechanical arm to move above the lens again to control the clamping cylinder, the clamping cylinder force has a memory function, so that the force for clamping again is greater than the force for clamping last time, the force is automatically changed slightly, the clamping is automatically and quickly carried out again while the operation of the machine is not stopped, the clamping force parameter is automatically adjusted, and the function of automatic picking when the mechanical arm is carried and dropped is realized; the carrying shaft comprises a transverse translation unit, a longitudinal translation unit and a carrying claw, the transverse translation unit and the longitudinal translation unit are used for transversely and longitudinally moving the carrying claw, and the carrying claw is used for clamping multiple lenses and overturning the multiple lenses; the carrying shaft can carry multiple lenses stably and quickly, the transverse translation unit and the longitudinal translation unit can be moved simultaneously by the carrying shaft only by determining the position parameters of the terminal point, the moving speed is adjustable, and a user can debug and find the best balance point of the carrying shaft between stability and quickness.
According to the technical scheme, the detection station comprises a backlight source detection module, a first dim light test module, a second dim light test module, an ink detection module, a bright light detection module, a support substrate and a lamp panel, wherein the support substrate is used for carrying and placing five pieces of multiple lenses so that the five pieces of multiple lenses can be simultaneously detected, the backlight source detection module is used for detecting the interiors of the multiple lenses and ensuring that no impurities exist in the interiors of the multiple lenses, the first dim light test module is used for detecting defects on the forward surfaces of the multiple lenses, the second dim light test module is used for detecting defects on the reverse surfaces of the multiple lenses, the ink detection module is used for detecting whether ink of the lenses overflows or has defects, the lamp panel is used for obliquely irradiating the multiple lenses and refracting bright light to the bright light detection module so as to improve a refraction light source, the bright light detection module is used for rotating along with the angles of the lenses in a bright light environment, capturing reflected light rays at multiple angles to detect multiple lens surface defects again; the detection station carries out the detection of different types to the lens in proper order, and each camera lens divide the different condition to give the detection in all-round, guarantees the accurate complete and quick characteristic of detection to need not artifical visual observation, labour saving and time saving can accomplish the detection.
According to the technical scheme, the detection method of the detection station comprises the following steps:
s1, determining a starting position A and an end position B of the support substrate;
s2, preparing the bracket substrate at a clamping position A;
s3, clamping 5 lenses by the support substrate;
s4, moving all the lenses forward by one position;
s5, placing all the lenses at the position of the terminal point B;
s6, returning the bracket substrate to the initial position, and repeating the steps S1-S5;
in the step S1, the start position a is located in a buffer area before the detection station to an ink detection module in the fourth position in the detection station, and the end position B is located in the first position to the fifth position of the backlight module.
According to the technical scheme, the blanking station comprises a gantry claw, a qualified blanking belt and an unqualified blanking belt, the gantry claw is electrically connected with the detection station and is used for grabbing multiple lenses detected by the detection station and placing the lenses to the qualified blanking belt or the unqualified blanking belt according to a judgment result of the detection station; finally, the multiple lenses which are detected are obtained, the qualified rate detection number and the like can be known, and the functions of full-automatic detection and full-automatic distinguishing are further realized.
According to the technical scheme, the ink detection method of the multiple lenses comprises the following steps:
s1, loading a tray with multiple lenses at a loading station;
s2, the tray is conveyed to a fixed platform by the feeding platform, and a code scanning gun is arranged on one side of the fixed platform to scan the two-dimensional codes on the multiple lenses;
s3, the mechanical arm conveys the multiple lenses to the conveying shaft;
s4, the carrying shaft carries the multiple lenses to a buffer area in front of the detection station to wait;
s5, sequentially detecting multiple lenses by a detection station;
s6, completing detection, and sorting the multiple lenses by the gantry claw according to the detection values;
s7, the detection value is qualified, the gantry claw is placed in a qualified feeding belt, the detection value is unqualified, the deviation of the distance between the detection value and the qualified value is less than 5%, the gantry claw is placed in a cleaning area, and the gantry claw is placed in an unqualified feeding belt when the detection value is unqualified and the deviation of the value is more than or equal to 5%.
The cleaning area comprises a cleaning pool, a scouring table and a drying cabinet, the cleaning pool, the scouring table and the drying cabinet are connected through carrying shafts, the multiple lenses enter the buffer area again after being cleaned by the cleaning area to repeat the steps S1-S6, unqualified deviation in the step S7 is skipped during sorting, the judgment result is directly read, errors caused by dust contamination of the multiple lenses in the detection process are prevented, and the accuracy of the detection result is improved.
According to the above technical solution, the step S5 includes:
s51, testing backlight;
s52, testing dark light for the first time;
s53, testing in dark light for the second time;
s54, detecting ink;
and S55, detecting the bright light.
According to the technical scheme, in the ink detection process of the step S54, the camera angle needs to rotate around the lens by 180 degrees, so that the ink of each side of the multiple lenses can be detected, the integrity of detection is improved, the camera is ensured to be vertical to the lens angle, any object needs to be prevented from moving above the multiple lenses in the ink detection process of the multiple lenses, and dust and impurities are prevented from falling above the lenses to influence the detection result and redundant processes.
Compared with the prior art, the invention has the following beneficial effects: in the invention, the raw materials are mixed,
(1) the full-automatic printing ink detection device is provided with a feeding station, a carrying station, a detection station and a discharging station, and can be used for full-automatic printing ink detection of multiple lenses;
(2) the first air cylinder and the second air cylinder are arranged, the first air cylinder lifts the tray, the second air cylinder extracts the tray at the bottommost layer, then the feeding table moves the tray to the fixed table to enable the mechanical wall to grab multiple lenses, and then the empty tray is conveyed to the lower layer from the elevator and is conveyed to the discharging belt, so that the function of full-automatic feeding is realized;
(3) by arranging the first sensor, the second sensor and the image sensor, when the lens falls, the image sensor repositions multiple lenses and controls the mechanical arm to move above the lens again to control the clamping cylinder to clamp, and when the lens is clamped again, the clamping cylinder force has a memory function, so that the clamping force for clamping again is greater than the clamping force for clamping the lens last time, the force is automatically changed slightly, the lens is quickly and automatically clamped again without stopping the operation of the machine, the clamping force parameter is automatically adjusted, and the automatic picking function when the mechanical arm is carried and falls is realized;
(4) the carrying shaft is arranged, so that multiple lenses can be stably and quickly carried by the carrying shaft, the carrying shaft can simultaneously move the transverse translation unit and the longitudinal translation unit only by determining the position parameters of the terminal point, the moving speed is adjustable, and a user can debug and find the optimal balance point of the carrying shaft between stability and quickness;
(5) the detection station is arranged, the detection station sequentially detects different types of lenses, and each lens can give detection in different conditions in an all-around manner, so that the characteristics of accuracy, completeness and quickness of detection are guaranteed, manual visual observation is not needed, and the detection can be completed in a time-saving and labor-saving manner;
(6) by arranging the gantry claw, the gantry claw sorts multiple lenses according to detection values, the detection values are qualified, the gantry claw is placed in a qualified blanking belt, the detection values are unqualified, but the deviation from the qualified values is less than 5%, the gantry claw is placed in a cleaning area, the detection values are unqualified, and when the deviation from the numerical values is more than or equal to 5%, the gantry claw is placed in an unqualified blanking belt, the multiple lenses enter the buffer area again after being cleaned in the cleaning area to repeat steps S1-S6, the unqualified deviation in the step S7 is skipped during sorting, the judgment result is directly read, errors caused by dust staining of the multiple lenses in the detection process are prevented, and the accuracy of the detection result is improved.
Drawings
The accompanying drawings, which are included to provide a further understanding of the invention and are incorporated in and constitute a part of this specification, illustrate embodiments of the invention and together with the description serve to explain the principles of the invention and not to limit the invention. In the drawings:
FIG. 1 is a schematic view of the overall structure of the present invention;
FIG. 2 is a schematic view of the loading station configuration of the present invention;
FIG. 3 is a schematic view of a robotic arm of the present invention;
FIG. 4 is a schematic view of the splint construction of the present invention;
FIG. 5 is a schematic view of a carrier shaft configuration of the present invention;
FIG. 6 is a schematic view of the inspection station of the present invention;
FIG. 7 is a schematic view of the blanking station of the present invention;
in the figure: 1. a feeding station; 2. a transfer station; 3. a detection station; 4. a blanking station; 11. a feeding table; 12. a first cylinder; 13. a second air cylinder; 14. a tray; 15. an elevator; 16. a discharge belt; 17. a fixed table; 21. a mechanical arm; 211. a base; 212. a splint; 213. an image sensor; 214. a light supplement lamp; 2121. a first sensor; 2122. a second sensor; 2123. clamping a cylinder; 2124. a clamping jaw; 22. a carrying shaft; 221. a transverse translation unit; 222. a longitudinal translation unit; 223. a carrying claw; 31. a backlight source detection module; 32. testing a module in dark light; 33. testing a second module in dark light; 34. an ink detection module; 35. a bright light detection module; 36. a support substrate; 37. a lamp panel; 41. a gantry claw; 42. unqualified material discharging belts; 43. and (5) discharging the qualified material belt.
Detailed Description
The technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only a part of the embodiments of the present invention, and not all of the embodiments. All other embodiments, which can be derived by a person skilled in the art from the embodiments given herein without making any creative effort, shall fall within the protection scope of the present invention.
Referring to fig. 1-7, the present invention provides the following technical solutions: referring to fig. 1, the method for detecting ink defects of a multi-lens adopts the following detection equipment, and the detection equipment comprises a loading station 1, a carrying station 2, a detection station 3 and a blanking station 4, and is characterized in that: the loading station 1 comprises a loading platform 11, the loading platform 11 is used for feeding and detecting multiple lenses, the carrying station 2 is used for grabbing and carrying the multiple lenses, the detecting station 3 is used for detecting defects of the multiple lenses, and the unloading station 4 is used for carrying and sending out the multiple lenses; this device can be used to the full-automatic printing ink of multiple lens to detect, puts into tray 14 back with multiple lens, and the tray 14 that snatchs that 1 material loading station can be automatic a dish sends into fixed station 17 department, and the multiple lens clamp in 2 many trays 14 of transport station is got afterwards and is carried to 3 waiting for detections in detection station, carries out the subregion to the lens after detecting and puts, has finally reached and need not artifical the detection, and labour saving and time saving accomplishes the effect of the detection of multiple lens fully automatically.
As shown in fig. 2, the loading station 1 comprises a loading platform 11, a first cylinder 12 and a second cylinder 13 are arranged on two lateral sides of the loading platform 11, a fixed platform 17 is arranged on one longitudinal side of the loading platform 11, a tray 14 is fixed on the fixed platform 17, and a lifting elevator 15 is arranged on one side of the tray 14, and a discharging belt 16 is arranged on one side of the bottom of the lifting elevator 15; the first air cylinder 12 lifts the tray 14, the second rear air cylinder 13 draws the tray 14 at the bottommost layer away, then the loading table 11 moves the tray 14 to the fixing table 17, the mechanical wall is used for grabbing multiple lenses, and then the empty tray 14 is conveyed to the lower layer from the elevator 15 and is conveyed to the unloading belt 16, so that the function of full-automatic loading is realized.
As shown in fig. 3, the carrying station 2 is disposed on one side of the loading station 1, the carrying station 2 includes a robot arm 21 and a carrying shaft 22, the robot arm 21 includes a base 211, a clamp plate 212, an image sensor 213 and a fill-in light 214, the base 211 is used for fixing the robot arm 21, the clamp plate 212 is used for grabbing multiple lenses, the image sensor 213 is used for determining a target position, when a target is detected, the robot arm 21 is controlled to take out a part from the tray 14, and the fill-in light 214 fills in light for the multiple lenses; the clamp plate 212 of the mechanical arm 21 is controlled to clamp and carry multiple lenses after the watch in the tray 14 is locked by the image sensor 213, and the precision stability of clamping the lenses is ensured.
Referring to fig. 4 and 5, the clamp plate 212 includes a first sensor 2121, a second sensor 2122, a clamping jaw 2124 and a clamping cylinder 2123, the first sensor 2121 is used for detecting whether a lens is mounted in the tray 14, if the lens falls off during the transportation of the robot arm 21, the first sensor 2121 can transmit an abnormal detection signal to the image sensor 213, the image sensor 213 can reposition the multiple lenses, the image sensor 213 is used for determining the position of the clamping jaw 2124, determining the open/close state of the clamping jaw 2124, and performing trajectory determination according to the image sensor 213, if the abnormal detection signal does not conform to the signal of the image sensor 213, sending a signal feedback to monitor the clamping function of the clamping jaw 2124, the clamping jaw 2124 is used for clamping the lens, the clamping cylinder 2123 is used for controlling the clamping and releasing of the clamping jaw 2124, when the lens falls off, the image sensor 213 repositions the multiple lenses and controls the robot arm 21 to move above the lens, meanwhile, when the robot arm 21 is carried and dropped, the clamping cylinder 2123 has a memory function in terms of force, so that the force for secondary clamping is greater than that for the last clamping, the force is automatically changed slightly, the robot arm is rapidly and automatically clamped again without stopping the operation of the machine, the clamping force parameter is automatically adjusted, and the function of automatic picking when the robot arm 21 is carried and dropped is realized; the carrying shaft 22 comprises a transverse translation unit 221, a longitudinal translation unit 222 and a carrying claw 223, wherein the transverse translation unit 221 and the longitudinal translation unit 222 are used for carrying out transverse and longitudinal movement on the carrying claw 223, and the carrying claw 223 is used for clamping a multiple lens and overturning the multiple lens; the carrying shaft 22 can stably and rapidly carry multiple lenses, only the position parameters of the end point need to be determined, the carrying shaft 22 can simultaneously move the transverse translation unit 221 and the longitudinal translation unit 222, the moving speed can be adjusted, and a user can find the optimal balance point of the carrying shaft 22 between stabilization and rapidness.
As shown in fig. 6, the inspection station 3 includes a backlight source detection module 31, a first dark light test module 32, a second dark light test module 33, an ink detection module 34, a bright light detection module 35, a support substrate 36 and a lamp panel 37, wherein the support substrate 36 is used for carrying and placing five multiple lenses, so that the five multiple lenses can be simultaneously detected, the backlight source detection module 31 is used for detecting the interior of the multiple lenses to ensure that the interior of the multiple lenses is free from impurities, the first dark light test module 32 is used for detecting defects on the forward surfaces of the multiple lenses, the second dark light test module 33 is used for detecting defects on the reverse surfaces of the multiple lenses, the ink detection module 34 is used for detecting whether ink of the lenses overflows or defects, the lamp panel 37 is used for obliquely irradiating the multiple lenses and refracting bright light to the bright light detection module 35, thereby improving a refraction light source, the bright light detection module 35 is used for rotating with the angles of the lenses in a bright light environment, capturing reflected light rays at multiple angles to detect multiple lens surface defects again; the detection station 3 carries out detection of different categories to the lens in proper order, and each camera lens divide the different condition to give the detection in all-round, guarantees the accurate complete and quick characteristic of detection to need not artifical visual observation, labour saving and time saving can accomplish the detection.
The detection method of the detection station 3 comprises the following steps:
s1, determining a starting position A and an end position B by the bracket base plate 36;
s2, the holder base plate 36 is ready to be in the clamping position a;
s3, clamping 5 lenses by the support base plate 36;
s4, moving all the lenses forward by one position;
s5, placing all the lenses at the position of the terminal point B;
s6, returning the bracket substrate 36 to the initial position, and repeating the steps S1-S5;
in step S1, the start position a is located in the buffer area before the detection station 3 to the ink detection module 34 at the fourth position in the detection station 3, and the end position B is located in the backlight module at the first position to the bright light detection module 35 at the fifth position.
As shown in fig. 7, the blanking station 4 includes a gantry claw 41, a qualified blanking belt 43 and an unqualified blanking belt 42, the gantry claw 41 is electrically connected to the detection station 3, the gantry claw 41 is used for grabbing the multiple lenses detected by the detection station 3, and placing the multiple lenses to the qualified blanking belt 43 or the unqualified blanking belt 42 according to the judgment result of the detection station 3; finally, the multiple lenses which are detected are obtained, the qualified rate detection number and the like can be known, and the functions of full-automatic detection and full-automatic distinguishing are further realized.
The ink detection method of the multiple lenses comprises the following steps:
s1, loading the tray 14 with multiple lenses at the loading station 1;
s2, the tray 14 is conveyed to the fixed platform 17 by the feeding platform 11, and a code scanning gun is arranged on one side of the fixed platform 17 to scan the two-dimensional codes on the multiple lenses;
s3, the robot 21 transfers the multiple lenses to the transfer shaft 22;
s4, the conveying shaft 22 conveys the multiple lenses to a buffer area in front of the detection station 3 to wait;
s5, sequentially detecting multiple lenses by a detection station 3;
s6, completing detection, and sorting the multiple lenses by the gantry claw 41 according to the detection values;
s7, the detection value is qualified, the gantry claw 41 is placed in the qualified blanking belt 43, the detection value is unqualified, the deviation from the qualified value is less than 5%, the gantry claw 41 is placed in the cleaning area, and when the detection value is unqualified and the deviation from the value is more than or equal to 5%, the gantry claw 41 is placed in the unqualified blanking belt 42.
The cleaning zone includes the washing pond, erodes the platform and dries the pavilion, wash the pond, erode and dry and connect by carrying axle 22 between the pavilion, multiple lens pass through the cleaning zone and wash the back and enter the buffer zone again and carry out repetition step S1-S6 to jump the unqualified deviation volume in step S7 during the letter sorting, directly read the judged result, and then prevent because of the error that multiple lens are infected with the dust and bring the testing result among the testing process, improve the accuracy of testing result.
Step S5 includes:
s51, testing backlight;
s52, testing dark light for the first time;
s53, testing in dark light for the second time;
s54, detecting ink;
and S55, detecting the bright light.
In the ink detection process of step S54, the camera angle needs to rotate 180 degrees around the lens, so that ink detection can be performed on each side of the multiple lenses, the integrity of detection is improved, and it is ensured that the camera is perpendicular to the lens angle, and any object needs to be prevented from moving above the multiple lenses in the ink detection process of the multiple lenses, so as to prevent dust and impurities from falling above the lenses to affect the detection result and redundant processes.
It is noted that, herein, relational terms such as first and second, and the like may be used solely to distinguish one entity or action from another entity or action without necessarily requiring or implying any actual such relationship or order between such entities or actions. Also, the terms "comprises," "comprising," or any other variation thereof, are intended to cover a non-exclusive inclusion, such that a process, method, article, or apparatus that comprises a list of elements does not include only those elements but may include other elements not expressly listed or inherent to such process, method, article, or apparatus.
Finally, it should be noted that: although the present invention has been described in detail with reference to the foregoing embodiments, it will be apparent to those skilled in the art that changes may be made in the embodiments and/or equivalents thereof without departing from the spirit and scope of the invention. Any modification, equivalent replacement, or improvement made within the spirit and principle of the present invention should be included in the protection scope of the present invention.
Claims (4)
1. The method for detecting the ink defects of the multiple lenses comprises the following detection equipment comprising a feeding station (1), a carrying station (2), a detection station (3) and a discharging station (4), and is characterized in that: the feeding station (1) comprises a feeding table (11), the feeding table (11) is used for feeding and detecting multiple lenses, the carrying station (2) is used for grabbing and carrying the multiple lenses, the detecting station (3) is used for detecting defects of the multiple lenses, and the discharging station (4) is used for carrying and sending out the multiple lenses;
the loading station (1) comprises a loading platform (11), a first air cylinder (12) and a second air cylinder (13) are arranged on two transverse sides of the loading platform (11), a fixing platform (17) is arranged on one longitudinal side of the loading platform (11), a tray (14) is fixed on the fixing platform (17), a lifting elevator (15) is arranged on one side of the tray (14), and a discharging belt (16) is arranged on one side of the bottom of the lifting elevator (15);
the carrying station (2) is arranged on one side of the feeding station (1), the carrying station (2) comprises a mechanical arm (21) and a carrying shaft (22), the mechanical arm (21) comprises a base (211), a clamping plate (212), an image sensor (213) and a light supplementing lamp (214), the base (211) is used for fixing the mechanical arm (21), the clamping plate (212) is used for grabbing multiple lenses, the image sensor (213) is used for judging the target position, when the target is detected, the robot is controlled to take out parts from the tray (14), and the light supplementing lamp (214) supplements light for the image sensor (213);
the clamping plate (212) comprises a first sensor (2121), a second sensor (2122), a clamping jaw (2124) and a clamping cylinder (2123), the first sensor (2121) is used for detecting whether a lens is arranged in the tray (14) or not, the image sensor (213) is used for judging the position of the clamping jaw (2124), at the same time, the opening and closing state of the clamping jaws (2124) is confirmed, and the track is judged according to the image sensor (213), the clamping jaw (2124) is used for clamping a lens, the clamping cylinder (2123) is used for controlling the clamping and releasing of the clamping jaw (2124), the conveying shaft (22) comprises a transverse translation unit (221), a longitudinal translation unit (222) and a conveying claw (223), the transverse translation unit (221) and the longitudinal translation unit (222) are used for transversely and longitudinally moving a carrying claw (223), and the carrying claw (223) is used for clamping a multiple lens and overturning the multiple lens;
the detection station (3) comprises a backlight source detection module (31), a first dim light test module (32), a second dim light test module (33), an ink detection module (34), a bright light detection module (35), a support substrate (36) and a lamp panel (37), wherein the support substrate (36) is used for carrying and placing five pieces of multiple lenses, five pieces of multiple lenses can be simultaneously detected, the backlight source detection module (31) is used for detecting the inside of the multiple lenses and ensuring that the inside of the multiple lenses is free of impurities, the first dim light test module (32) is used for detecting defects on the forward surfaces of the multiple lenses, the second dim light test module (33) is used for detecting the defects on the reverse surfaces of the multiple lenses, the ink detection module (34) is used for detecting whether ink of the lenses overflows or defects, the lamp panel (37) is used for obliquely irradiating the multiple lenses and refracting bright light to the bright light detection module (35), thereby improving the refraction light source, and the bright light detection module (35) is used for capturing the reflected light rays at multiple angles under a bright light environment and rotating along with the angle of the lens so as to detect the surface defects of the multiple lenses again.
2. The method for detecting ink defects in a multi-lens assembly of claim 1, wherein: the detection method of the detection station (3) comprises the following steps:
s1, determining a starting position A and an end position B by the bracket substrate (36);
s2, preparing the bracket substrate (36) at a clamping position A;
s3, clamping 5 lenses by the support base plate (36) at the same time;
s4, moving all the lenses forward by one position;
s5, placing all the lenses at the position of the terminal point B;
s6, returning the bracket substrate (36) to the initial position, and repeating the steps S1-S5;
in the step S1, the start position a is located from the buffer area before the detection station (3) to the ink detection module (34) at the fourth position in the detection station (3), and the end position B is located from the backlight module at the first position to the bright light detection module (35) at the fifth position.
3. The method for detecting ink defects in a multi-lens system according to claim 2, wherein: the blanking station (4) comprises a gantry claw (41), a qualified blanking belt (43) and an unqualified blanking belt (42), the gantry claw (41) is electrically connected with the detection station (3), and the gantry claw (41) is used for grabbing multiple lenses which are detected by the detection station (3) and placing the lenses to the qualified blanking belt (43) or the unqualified blanking belt (42) according to a judgment result of the detection station (3).
4. The method for detecting ink defects in a multi-lens set according to claim 3, wherein: the ink detection method of the multiple lenses comprises the following steps:
s1, loading a tray (14) with multiple lenses at the loading station (1);
s2, the tray (14) is conveyed to a fixing table (17) by the feeding table (11), and a code scanning gun is arranged on one side of the fixing table (17) to scan the two-dimensional codes on the multiple lenses;
s3, the mechanical arm (21) transports the multiple lenses to the transport shaft (22);
s4, the conveying shaft (22) conveys the multiple lenses to a buffer area in front of the detection station (3) for waiting;
s5, sequentially detecting the multiple lenses by the detection station (3);
s6, completing detection, and sorting the multiple lenses by the gantry claw (41) according to the detection values;
s7, detecting the qualified numerical value, placing the gantry claw (41) into a qualified blanking belt (43), detecting the unqualified numerical value but having a deviation less than 5% from the qualified numerical value, placing the gantry claw (41) into a cleaning area, and placing the gantry claw (41) into an unqualified blanking belt (42) when the detected numerical value is unqualified and the deviation of the numerical value is more than or equal to 5%; the cleaning area comprises a cleaning pool, a scouring table and a drying cabinet, the cleaning pool, the scouring table and the drying cabinet are all connected by a carrying shaft (22), the multiple lenses are cleaned by the cleaning area and then enter the buffer area again to repeat the steps S1-S6, and unqualified deviation in the step S7 is skipped during sorting, and the judgment result is directly read;
the step S5 includes:
s51, testing backlight;
s52, testing dark light for the first time;
s53, testing in dark light for the second time;
s54, detecting ink;
s55, detecting bright light;
in the ink detection process of step S54, the camera angle needs to rotate 180 degrees around the lens, and meanwhile, the camera angle is ensured to be vertical, and any object needs to be prevented from moving above the multiple lenses in the ink detection process of the multiple lenses.
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