CN107175219B - FPC appearance inspection machine and double-side inspection mechanism and method thereof - Google Patents
FPC appearance inspection machine and double-side inspection mechanism and method thereof Download PDFInfo
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- CN107175219B CN107175219B CN201710530036.4A CN201710530036A CN107175219B CN 107175219 B CN107175219 B CN 107175219B CN 201710530036 A CN201710530036 A CN 201710530036A CN 107175219 B CN107175219 B CN 107175219B
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B07—SEPARATING SOLIDS FROM SOLIDS; SORTING
- B07C—POSTAL SORTING; SORTING INDIVIDUAL ARTICLES, OR BULK MATERIAL FIT TO BE SORTED PIECE-MEAL, e.g. BY PICKING
- B07C5/00—Sorting according to a characteristic or feature of the articles or material being sorted, e.g. by control effected by devices which detect or measure such characteristic or feature; Sorting by manually actuated devices, e.g. switches
- B07C5/34—Sorting according to other particular properties
- B07C5/342—Sorting according to other particular properties according to optical properties, e.g. colour
- B07C5/3422—Sorting according to other particular properties according to optical properties, e.g. colour using video scanning devices, e.g. TV-cameras
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- G01—MEASURING; TESTING
- G01N—INVESTIGATING OR ANALYSING MATERIALS BY DETERMINING THEIR CHEMICAL OR PHYSICAL PROPERTIES
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- 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
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Abstract
The invention provides an FPC appearance inspection machine, a double-side inspection mechanism and an inspection method thereof, wherein the FPC double-side appearance inspection mechanism comprises a turntable and an inspection system, a plurality of stations are distributed on the turntable, a first carrier for placing a workpiece is correspondingly arranged at each station, and each station comprises a front inspection station and a back inspection station for waiting materials; the inspection system comprises a front inspection mechanism and a back inspection mechanism, the front inspection mechanism and the back inspection mechanism are respectively arranged on two axial sides of the turntable, the front inspection mechanism is correspondingly arranged at the position of the front inspection station, the back inspection mechanism is correspondingly arranged at the position of the back inspection station, and the back inspection station is arranged, so that workpieces can be stably and sequentially transferred on the front inspection station and the back inspection station in the inspection process, and the front inspection mechanism and the back inspection mechanism synchronously work to ensure the feeding rhythm of the workpieces, so that the workpieces are fed and are parallelly checked with the workpieces, and the stability, the consistency and the efficiency of workpiece inspection are comprehensively improved.
Description
Technical Field
The invention relates to the technical field of detection, in particular to an FPC appearance inspection machine, a double-side inspection mechanism and an inspection method thereof.
Background
A Flexible Printed Circuit (FPC) is a highly reliable and Flexible Printed Circuit board made of polyimide or polyester film as a base material, has the characteristics of high wiring density, light weight, thin thickness and good bending property, and is widely used in various fields. Conventionally, FPC is inspected for defects with the human eye. In recent years, visual inspection has been developed more and more rapidly, and measurement and judgment are gradually performed instead of the human eye. The visual detection converts the shot target into an image signal, transmits the image signal to a special image processing system, and converts the image signal into a digital signal according to the information of pixel distribution, brightness, color and the like; the image system performs various calculations on these signals to extract the features of the target, and then controls the operation of the on-site equipment according to the result of the discrimination.
In contrast, chinese patent document CN101403709B discloses a circuit board appearance inspection machine, which includes a frame 1 and a conveying mechanism 2 disposed on the frame 1, wherein the frame 1 at the front end of the conveying mechanism 2 is provided with a board loading mechanism 3 for automatically transferring circuit boards one by one to the conveying mechanism 2, the front and rear parts of the conveying mechanism 2 are respectively provided with a scanning mechanism 4, a board turning mechanism 5 for turning over circuit boards is disposed between the two scanning mechanisms 4, and each mechanism is coordinately controlled by a control host; this circuit board visual inspection machine, the circuit board conveys 5 positions to the mechanism of turning over the board after being scanned by the scanning mechanism 4 of transport mechanism 2 anterior, and the mechanism of turning over the board 5 overturns the circuit board, then scans the another side of circuit board through the scanning mechanism 4 at transport mechanism 2 rear portion, and two scanning mechanism 4 compare the judgement with the standard model with the surface image transmission who gathers to the main control system to the realization is to the two-sided inspection of circuit board.
However, in the process of checking the circuit board appearance checking machine, the turning mechanism 5 is arranged to turn over the circuit board to realize double-sided detection of the circuit board, so that the checking steps are multiple and the efficiency is low; meanwhile, when the FPC is inspected, the FPC is light in weight, thin in thickness and good in bending property, so that the FPC is required to be effectively fixed in the overturning process to prevent the FPC from moving and even falling, and the inspection effect is ensured; therefore, how to improve the efficiency and effect of the appearance inspection of the FPC becomes a problem to be solved urgently today.
Disclosure of Invention
Therefore, the technical problem to be solved by the invention is to overcome the technical defects of low efficiency and poor effect caused by the need of turning the FPC circuit board in the FPC double-sided inspection in the prior art.
In order to achieve the purpose, the invention provides a double-sided appearance inspection mechanism for an FPC, which comprises a turntable and an inspection system, wherein the turntable can rotate intermittently, a plurality of stations are distributed on the turntable, a first carrier for placing a workpiece is correspondingly arranged at each station, the first carriers are sequentially transmitted on the stations, and the stations comprise a front inspection station and a back inspection station to be fed; the inspection system comprises a front inspection mechanism and a back inspection mechanism, wherein the front inspection mechanism and the back inspection mechanism are respectively arranged at two axial sides of the turntable, the front inspection mechanism is correspondingly arranged at the position of the front inspection station, the back inspection mechanism is correspondingly arranged at the position of the back inspection station to be fed, and the back inspection station is arranged; the front inspection mechanism comprises a first vision module for inspecting workpieces on the front inspection station; the back side inspection mechanism comprises a second vision module and a material moving device, the material moving device comprises a back side inspection gripper and a driving device, the back side inspection gripper is used for gripping a workpiece at a back side inspection material waiting station and driving the back side inspection gripper, and the back side inspection gripper moves back and forth between the back side inspection material waiting station and the second vision module; the back side inspection hand has two.
Optionally, the driving device is provided with a first driving mechanism and a second driving mechanism corresponding to each back side inspection gripper respectively, the back side inspection gripper is provided with a second carrier for adsorbing a workpiece, the first driving mechanism is connected with the back side inspection gripper and drives the back side inspection gripper to move back and forth between the back side inspection material waiting station and the second vision module, the second driving mechanism is connected with the back side inspection gripper, and the driving direction of the second driving mechanism is placed along the vertical direction.
Optionally, the first visual module and the second visual module are the same and are arranged in opposite directions; the first vision module and the second vision module respectively comprise a shooting device, a combined light source and a multi-path light source controller, through holes are formed in the combined light source, and the shooting device shoots a workpiece irradiated by the combined light source through the through holes.
Optionally, there are two front side inspection stations, there is one back side inspection station, and the two front side inspection stations and the back side inspection station are sequentially arranged along the rotation direction of the turntable; the first vision module is provided with two corresponding front inspection stations and arranged above the front inspection stations; the second vision module corresponds to one of the back surface inspection material waiting stations and is arranged below the back surface inspection material waiting station.
In order to achieve the purpose, the invention also provides an FPC appearance inspection machine, which comprises a rack, a control host arranged on the rack, an FPC double-sided appearance inspection mechanism, a temporary storage and transportation mechanism, a sorting and tray loading mechanism and a tray supply mechanism, wherein the FPC double-sided appearance inspection mechanism is electrically connected with the control host; the material tray feeding mechanism is arranged at the discharging position of the workpiece on the frame.
As optional, the transport mechanism of keeping in includes tool and the transport cylinder of keeping in, and the transport mechanism of keeping in is provided with the material loading position of keeping in and the unloading position of keeping in, and the tool that keeps in of transport cylinder drive is kept in and is removed between the material loading position of keeping in and the unloading position of keeping in.
Optionally, letter sorting sabot mechanism is including letter sorting tongs and letter sorting actuating mechanism, and letter sorting actuating mechanism is connected with the letter sorting tongs to drive letter sorting tongs along the route round trip movement of handling mechanism to charging tray feeding mechanism of keeping in.
Optionally, the material tray supply mechanism comprises a material tray storage mechanism, a material tray carrying mechanism and a material tray conveying mechanism, the material tray storage mechanism is arranged at the front end of the material tray carrying mechanism, and a material tray is stored in the material tray storage mechanism; the charging tray carrying mechanism is arranged above the charging tray storage mechanism and the charging tray conveying mechanism, a charging tray adsorption mechanism is arranged on the charging tray carrying mechanism, and the charging tray adsorption mechanism moves back and forth between the charging tray storage mechanism and the charging tray conveying mechanism.
In order to achieve the above object, the present invention further provides an FPC appearance inspection method applied to any one of the above FPC appearance inspection machines, comprising the steps of: loading a workpiece, namely loading the workpiece onto a first carrier at a turntable station; double-side inspection, namely synchronously acquiring front or back images of workpieces placed at different inspection stations and sending the images to a control host; temporarily storing the workpieces, wherein the temporarily storing and conveying mechanism receives the workpieces subjected to double-side inspection and moves the workpieces to a temporarily storing and blanking position; sorting and loading, wherein the sorting and loading mechanism sorts and grabs the workpieces at the temporary storage blanking position according to signals fed back by the control host and loads the workpieces into corresponding material trays; discharging of the material tray: the material tray feeding mechanism conveys the material trays after sorting and loading to a discharging position.
Optionally, in the step of double-sided inspection, the method comprises the steps of: the front side inspection is carried out, wherein a first vision module of the front side inspection mechanism acquires a front side image of a workpiece placed at a front side inspection station and sends the front side image to a control host; and (4) back inspection, wherein a second vision module of the back inspection mechanism acquires back images of the workpieces placed at the back inspection waiting station and sends the back images to the control host.
The FPC appearance inspection machine and the double-sided inspection mechanism and the inspection method thereof provided by the invention have the following advantages:
1. the FPC double-sided appearance inspection mechanism comprises an intermittent rotating turntable, wherein a plurality of stations are distributed on the turntable, a first carrier for placing a workpiece is correspondingly arranged at each station, the first carrier is sequentially transmitted on the stations, the stations in the mechanism comprise a front inspection station and a back inspection station, so that the workpieces can be sequentially transmitted on the front inspection station and the back inspection station, the workpieces are more stably installed and transmitted, and the front inspection mechanism and the back inspection mechanism are matched to synchronously work, so that the feeding rhythm of the workpieces is ensured, and the working efficiency is improved; simultaneously, because the front inspection mechanism and the back inspection mechanism of the inspection system are respectively arranged at the two axial sides of the turntable, the front inspection mechanism is correspondingly arranged at the position of the front inspection station, the back inspection mechanism is correspondingly arranged at the position of the back inspection station to be fed, and further the inspection system can be matched with the rotation of the turntable to synchronously inspect the workpieces at the front inspection station and the back inspection station, so that the workpieces are inspected in parallel with the workpiece inspection, and the stability, the consistency and the efficiency of the workpiece inspection are comprehensively improved.
2. According to the FPC double-sided appearance inspection mechanism provided by the invention, the front inspection mechanism comprises the first vision module for inspecting the workpiece on the front inspection station, so that the front inspection of the workpiece on the front inspection station is realized; meanwhile, the back checking mechanism comprises a second vision module and a material moving device, the material moving device comprises a back checking gripper for grabbing a workpiece on the back checking material waiting station and a driving device for driving the back checking gripper, the back checking gripper moves back and forth between the back checking material waiting station and the second vision module, and then the workpiece on the back checking material waiting station is grabbed by the back checking gripper, so that the workpiece can be transmitted to the second vision module to check the back of the workpiece, synchronous operation of the front checking mechanism and the back checking mechanism on the turntable is realized, and checking efficiency is effectively improved on the basis of realizing double-sided checking.
3. According to the FPC double-sided appearance inspection mechanism provided by the invention, as the number of the back side inspection grippers is two, the alternative work of the two back side inspection grippers can be further realized, the intermittent rotating pause beat of the turntable is fully utilized, the workpiece gripping frequency of the back side inspection mechanism is effectively improved, and the efficient inspection of the workpiece on the back side inspection station is ensured; meanwhile, the driving device is provided with a first driving mechanism and a second driving mechanism corresponding to each back side inspection gripper respectively, a second carrier for adsorbing a workpiece is arranged on each back side inspection gripper, the first driving mechanism is connected with the back side inspection gripper and drives the back side inspection gripper to move back and forth between a back side inspection material waiting station and a second vision module, position transfer of the workpiece is achieved, the second driving mechanism is connected with the back side inspection gripper, the driving direction of the second driving mechanism is placed along the vertical direction, and the back side inspection gripper can be close to or far away from the working position in the vertical direction, so that the gripping precision is improved.
4. The FPC appearance inspection machine comprises a rack, a control host arranged on the rack, an FPC double-sided appearance inspection mechanism, a temporary storage and transportation mechanism, a sorting and tray loading mechanism and a material tray supply mechanism, wherein the FPC double-sided appearance inspection mechanism is electrically connected with the control host, is the FPC double-sided appearance inspection mechanism, and further has the advantages of any one of the mechanisms; meanwhile, the temporary storage conveying mechanism is arranged behind the process of the back side inspection mechanism, so that the inspected workpieces can be temporarily stored, then good products and defective products in the workpieces are automatically sorted through the sorting tray loading mechanism arranged between the temporary storage conveying mechanism and the tray supply mechanism, and the workpieces are distinguished and placed through empty trays provided by the tray supply mechanism; and finally, the full material tray after being filled is transferred to a discharging position to be taken out, so that the automatic operation of checking, sorting and transmitting the workpieces is realized, and the detection rate, stability and consistency of the defects of the workpieces are comprehensively ensured.
5. The temporary storage carrying mechanism comprises a temporary storage jig and a carrying cylinder, the temporary storage carrying mechanism is provided with a temporary storage feeding position and a temporary storage discharging position, the carrying cylinder drives the temporary storage jig to move between the temporary storage feeding position and the temporary storage discharging position, so that a checked workpiece can be placed on the temporary storage jig at the temporary storage feeding position, and then the temporary storage jig is moved to the temporary storage discharging position through the action of the carrying cylinder, so that the workpiece on the temporary storage jig can be sorted and palletized by the sorting turntable mechanism.
6. According to the FPC appearance inspection machine provided by the invention, the sorting and tray loading mechanism comprises the sorting grippers and the sorting driving mechanism, the sorting driving mechanism is connected with the sorting grippers and drives the sorting grippers to move back and forth along the path from the temporary storage and carrying mechanism to the tray supply mechanism, and therefore, the function of transferring workpieces from the temporary storage and carrying mechanism to the tray supply mechanism is realized.
7. According to the FPC appearance inspection machine provided by the invention, the material tray storage mechanism is arranged at the front end of the material tray carrying mechanism, and material trays are stored in the material tray storage mechanism, so that empty material trays are provided for sorted workpieces in time; simultaneously, charging tray transport mechanism sets up in charging tray storage mechanism and charging tray conveying mechanism top, be provided with charging tray adsorption apparatus in the charging tray transport mechanism, charging tray adsorption apparatus moves back and forth between charging tray storage mechanism and charging tray conveying mechanism and then charging tray adsorption apparatus can place the empty charging tray after adsorbing on the charging tray conveying mechanism for letter sorting charging tray mechanism carries out the sabot, after the charging tray is filled with, charging tray conveying mechanism transmits the charging tray that is full-load to ejection of compact position and carries out the ejection of compact, thereby reached the purpose of shifting to next process with the material.
8. The FPC appearance inspection method provided by the invention comprises the steps of loading a workpiece onto a first carrier at a turntable station, synchronously acquiring front or back images of the workpiece placed at different inspection stations, and sending the front or back images to a control host computer, so as to obtain inspection data of corresponding surfaces of different workpieces, and matching with intermittent rotation of the turntable, so that the workpieces are sequentially inspected on different workpieces, and finally corresponding double-surface image data are obtained; then the work piece after will two-sided inspection through the transport mechanism that keeps in removes the unloading position that keeps in, and pick according to the work piece letter sorting of the unloading position department of keeping in of the signal of main control system feedback by letter sorting sabot mechanism, in order loading to the charging tray that corresponds, and then effectual realization is to the classification of material, at last convey the discharging position ejection of compact through the charging tray feeding mechanism with the charging tray after the letter sorting sabot, in whole working process, because the inspection of work piece and the transfer of work piece are gone on in parallel, and then can realize the parallel high-speed inspection to the two-sided outward appearance of work piece, the effectual stability and the uniformity of guaranteeing the inspection, the efficiency of inspection has been improved.
Drawings
In order to more clearly illustrate the technical solutions of the embodiments of the present invention, the following further describes the invention in detail according to the embodiments of the present invention with reference to the accompanying drawings.
FIG. 1 is a schematic view of an embodiment of an FPC appearance inspection machine of the present invention;
FIG. 2 is a schematic view of the FPC appearance inspection machine shown in FIG. 1 from another angle;
FIG. 3 is a schematic view of the FPC appearance inspection machine of FIG. 1 with the housing removed;
FIG. 4 is a schematic view of the FPC appearance inspection machine of FIG. 2 with the housing removed;
FIG. 5 is a schematic view of the FPC double-sided appearance inspection mechanism of the FPC appearance inspection machine shown in FIG. 3;
FIG. 6 is a schematic view showing the positional relationship between the front inspection mechanism and the turntable of the FPC double-sided appearance inspection mechanism shown in FIG. 5;
FIG. 7 is a schematic view showing the positional relationship between the turntable and the backside inspection mechanism of the FPC double-sided appearance inspection mechanism shown in FIG. 5;
fig. 8 is a schematic view of a temporary storage and transportation mechanism, a sorting and tray loading mechanism and a tray supply mechanism of the FPC appearance inspection machine shown in fig. 3;
fig. 9 is a schematic view of another angle of the temporary storage and transportation mechanism, the sorting and tray loading mechanism and the tray supply mechanism of the FPC appearance inspection machine shown in fig. 8;
FIG. 10 is a schematic view of a temporary storage and transportation mechanism of the FPC appearance inspection machine shown in FIG. 8;
FIG. 11 is a schematic view of a sorting and tray loading mechanism of the FPC appearance inspection machine shown in FIG. 8;
FIG. 12 is a schematic view of another angle of the pick and place mechanism of the FPC appearance inspection machine of FIG. 8;
FIG. 13 is a schematic view of a tray feeding mechanism of the FPC appearance inspection machine shown in FIG. 8;
FIG. 14 is a flow chart of the FPC appearance inspection method of the present invention.
The reference numerals in the drawings are explained below.
11-a turntable; 111-station; 112-a first carrier; 12-a front inspection mechanism;
121-a first vision module; 1211-camera; 1212-combined light source;
13-a back side inspection mechanism; 131-a second vision module; 1311-a camera;
1312-a combined light source; 132-a material moving device; 1321-back side inspection grip;
1322-a first drive mechanism; 1323-a second drive mechanism; 200-a frame;
21-a housing; 22-a first bracket; 23-a handling cylinder; 300-temporary storage and transportation mechanism;
31-temporary storage jig; 32-a handling cylinder; 400-a sorting tray loading mechanism; 41-sorting grippers;
42-a sorting drive mechanism; 500-tray feeding mechanism; 51-a tray storage mechanism;
511-storage shelf; 512-a carrying module; 52-a tray handling mechanism;
521-a tray adsorption mechanism; 53-tray conveying mechanism; 600-tray.
Detailed Description
The technical solutions of the present invention will be described clearly and completely with reference to the accompanying drawings, and it should be understood that the described embodiments are some, but not all embodiments of the present invention. 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.
In the description of the present invention, it should be noted that the terms "upper", "lower", "inside", "outside", and the like indicate orientations or positional relationships based on the orientations or positional relationships shown in the drawings, and are only for convenience in describing the present invention and simplifying the description, but do not indicate or imply that the referred device or element must have a specific orientation, be constructed in a specific orientation, and be operated, and thus, should not be construed as limiting the present invention. Furthermore, the terms "first," "second," and "third" are used for descriptive purposes only and are not to be construed as indicating or implying relative importance.
In the description of the present invention, it should be noted that, unless otherwise explicitly specified or limited, the terms "mounted," "connected," and "connected" are to be construed broadly, e.g., as meaning either a fixed connection, a removable connection, or an integral connection; may be directly connected or indirectly connected through an intermediate. The specific meanings of the above terms in the present invention can be understood in specific cases to those skilled in the art.
In addition, the technical features involved in the different embodiments of the present invention described below may be combined with each other as long as they do not conflict with each other.
Example 1
An embodiment of the FPC appearance inspection machine shown in fig. 1 to 4 includes a frame 200, a control host (not shown) disposed on the frame 200, and an FPC double-sided appearance inspection mechanism (not shown) electrically connected to the control host, wherein a housing 21 for protecting each mechanism inside the FPC appearance inspection machine is disposed outside the frame 200; the FPC double-sided appearance inspection mechanism comprises a turntable 11 and an inspection system (not marked in the figure), wherein the turntable 11 can rotate intermittently, a plurality of stations 111 are distributed on the turntable 11, a first carrier 112 for placing a workpiece (not shown in the figure) is correspondingly arranged at each station 111, the first carriers 112 are sequentially transmitted on the stations 111, and the stations 111 comprise a front inspection station and a back inspection station for waiting materials; the inspection system comprises a front inspection mechanism 12 and a back inspection mechanism 13, wherein the front inspection mechanism 12 and the back inspection mechanism 13 are respectively arranged on two axial sides of the turntable 11, the front inspection mechanism 12 is correspondingly arranged at the position of the front inspection station, and the back inspection mechanism 13 is correspondingly arranged at the position of the back inspection station to be subjected to material inspection and is provided with the back inspection station.
It should be noted that the back surface inspection material waiting station is a logic station on the turntable, the back surface inspection station is an inspection position in the back surface vision system, the back surface inspection mechanism 13 is arranged corresponding to the back surface inspection material waiting station, and when the workpiece is inspected, the back surface inspection material waiting station is transferred to the back surface inspection station for back surface inspection.
The FPC appearance inspection machine comprises the FPC double-sided appearance inspection mechanism, the FPC double-sided appearance inspection mechanism comprises a turntable 11 which rotates intermittently, a plurality of stations 111 are distributed on the turntable 11, a first carrier 112 for placing a workpiece is correspondingly arranged at each station 111, the first carrier 112 is sequentially transmitted on the stations 111, the stations 111 comprise a front inspection station and a back inspection material waiting station, the workpieces can be sequentially transmitted on the front inspection station and the back inspection material waiting station, the mounting and transmission of the workpieces are more stable, the front inspection mechanism 12 and the back inspection mechanism 13 are matched to work synchronously, the feeding rhythm of the workpieces is guaranteed, and the working efficiency is improved; meanwhile, the front checking mechanism 12 and the back checking mechanism 13 of the checking system are respectively arranged on two axial sides of the turntable 11, the front checking mechanism 12 is correspondingly arranged at the position of the front checking station, the back checking mechanism 13 is correspondingly arranged at the position of the back checking material waiting station, and therefore the checking system can synchronously check the workpieces on the front checking station and the back checking material waiting station in cooperation with the rotation of the turntable 11, the workpieces are checked in parallel, and the stability, the consistency and the efficiency of workpiece checking are comprehensively improved.
Specifically, as shown in fig. 5 to 7, there are two front side inspection stations, one back side inspection station and one back side inspection station, and the two front side inspection stations and the two back side inspection stations are sequentially arranged along the rotation direction of the turntable 11; the front inspection mechanism 12 includes a first vision module 121 for inspecting the workpiece on the front inspection station; the back inspection mechanism 13 comprises a second vision module 131 and a material moving device 132, the first vision module 121 corresponds to two front inspection stations, and is arranged above the front inspection station, the second vision module 131 corresponds to one back inspection station, and is arranged below the back inspection station, the first vision module 121 and the second vision module 131 are the same, and are opposite in direction, so that the synchronous operation of the front inspection mechanism 12 and the back inspection mechanism 13 on two sides of the turntable 11 is realized, the double-sided inspection of workpieces on the turntable 11 is realized, the intermittent rotation of the turntable 11 is matched, a plurality of workpieces can be continuously and sequentially subjected to front and back inspection, and the inspection efficiency is effectively improved.
The first and second vision modules 121 and 131 respectively include cameras 1211 and 1311, combined light sources 1212 and 1312, and a multi-path light source controller, where the combined light sources 1212 and 1312 are provided with through holes (not shown) including a first annular light source (not shown) close to the first carrier 112, a second annular light source (not shown) close to the cameras, and a bar-shaped light source (not shown) disposed between the first and second annular light sources, the first and second annular light sources are coaxially disposed, and the bar-shaped light source is spaced from central axes of the first and second annular light sources; the photographing devices 1211, 1311 photograph the workpiece irradiated with the combined light source through the through-holes.
As shown in fig. 3, 5 and 7, the rack 200 is provided with a first support 22, the material moving device 132 of the back surface inspection mechanism 13 is mounted on the first support 22 and comprises two back surface inspection hand grips 1321 for gripping the workpiece at the back surface inspection material waiting station and a driving device for driving the back surface inspection hand grips 1321, the two back surface inspection hand grips 1321 alternately grip the workpiece at the back surface inspection material waiting station, the intermittent rotation pause of the turntable 11 is fully utilized, the gripping frequency of the back surface inspection mechanism 13 to the workpiece is effectively improved, and the efficient inspection of the workpiece at the back surface inspection station is ensured; the driving device is provided with a first driving mechanism 1322 and a second driving mechanism 1323 corresponding to each back surface inspection gripper 1321, a second carrier (not shown) for adsorbing the workpiece is arranged on the back surface inspection gripper 1321, the first driving mechanism 1322 is connected with the back surface inspection gripper 1321 and drives the back surface inspection gripper 1321 to move back and forth between the back surface inspection material waiting station and the second vision module 131, so that the position transfer of the workpiece is realized, the inspected workpiece can be transferred to the second vision module 131 to inspect the back surface of the workpiece, meanwhile, the second driving mechanism 1323 is connected with the back surface inspection gripper 1321, the driving direction of the second driving mechanism 1323 is placed along the vertical direction, and the back surface inspection gripper 1321 can approach or depart from the working position in the vertical direction, so as to improve the gripping precision, in the embodiment, the second driving mechanism 1323 is a driving air cylinder, the piston shaft of the drive cylinder is connected to the back inspection hand 1321.
In addition, as shown in fig. 8 and 9, the FPC appearance inspection machine further includes a temporary storage carrying mechanism 300, a sorting and tray loading mechanism 400, and a tray feeding mechanism 500 electrically connected to the control host, the temporary storage carrying mechanism 300 is disposed after the process of the back side inspection mechanism 13, the sorting and tray loading mechanism 400 is disposed between the temporary storage carrying mechanism 300 and the tray feeding mechanism 500, the tray feeding mechanism 500 is disposed at the discharge position of the workpiece on the rack 200, after the inspected workpiece is received by the temporary storage carrying mechanism 300, the sorting and tray loading mechanism 400 automatically sorts good and defective products in the workpiece by a signal fed back by the control host, and the inspected workpiece is distinguished and placed by an empty tray provided by the tray feeding mechanism 500 at the discharge position of the workpiece; and finally, the full material tray after being loaded is transferred to a discharging position to be taken out, so that the automatic operation of checking, sorting and transmitting the workpieces is realized, and the stability and consistency of the operation are ensured.
Specifically, as shown in fig. 10, the temporary storage carrying mechanism 300 includes a temporary storage jig 31 and a carrying cylinder 32, the temporary storage carrying mechanism 300 is provided with a temporary storage feeding position and a temporary storage discharging position, the carrying cylinder 32 drives the temporary storage jig 31 to move between the temporary storage feeding position and the temporary storage discharging position, and further a workpiece after being inspected can be placed on the temporary storage jig 31 of the temporary storage feeding position, then the workpiece is moved through the carrying cylinder 32, so that the temporary storage jig 31 is moved to the temporary storage discharging position, and the workpiece on the temporary storage jig 31 is sorted and palletized by the sorting turntable 11 mechanism.
As shown in fig. 4, 11 and 12, the rack 200 is further provided with a second support 23, the sorting and tray loading mechanism 400 is mounted on the second support 23 and includes a sorting gripper 41 and a sorting driving mechanism 42, the sorting driving mechanism 42 is connected to the sorting gripper 41 and drives the sorting gripper 41 to move back and forth along a path from the temporary storage and transportation mechanism 300 to the tray supply mechanism 500, so as to implement a function of transferring the workpiece from the temporary storage and transportation mechanism 300 to the tray supply mechanism 500.
As shown in fig. 13, the tray supply mechanism 500 includes a tray storage mechanism 51, a tray carrying mechanism 52 and a tray conveying mechanism 53, the tray storage mechanism 51 is disposed at the front end of the tray carrying mechanism 52, and a tray 600 is stored in the tray storage mechanism 51; the material tray conveying mechanism 52 is arranged above the material tray storage mechanism 51 and the material tray conveying mechanism 53, the material tray conveying mechanism 52 is provided with a material tray adsorption mechanism 521, the material tray adsorption mechanism 521 moves back and forth between the material tray storage mechanism 51 and the material tray conveying mechanism 53, and then the material tray storage mechanism 51 provides an empty material tray 600 for the sorted workpieces in time; the material tray adsorption mechanism 521 adsorbs the empty material tray 600 and then places the empty material tray 600 on the material tray conveying mechanism 53 for the sorting tray loading mechanism 400 to carry out tray loading, and after the material tray 600 is filled, the material tray conveying mechanism 53 transmits the fully loaded material tray 600 to the discharging position to discharge, so that the purpose of transferring the material to the next procedure is achieved.
Specifically, the tray storing mechanism 51 includes a storage rack 511 and a carrying module 512, and a plurality of trays 600 are accommodated in the storage rack 511; the carrying module 512 is movably mounted on the storage rack 511, the tray 600 is placed on the carrying module 512, the carrying module 512 drives the tray 600 to move on the storage rack 511, and further after the tray 600 on the material conveying module 53 is loaded, the tray conveying mechanism 53 conveys the fully loaded tray 600 to the discharging position for discharging, meanwhile, the carrying module 512 of the tray storage mechanism 51 moves to enable the tray 600 on the storage rack 511 to move to the supplying position, and the tray carrying mechanism 52 receives a corresponding signal to adsorb and grab the tray 600 at the supplying position and transfer the tray 600 to the tray conveying mechanism 53, so as to complete the supplying process of the empty tray 600. In the whole working process, automatic sorting and tray loading of workpieces are realized, and therefore production efficiency and stability are effectively improved.
As an optional embodiment, the tray supply mechanism 500 has two trays and respectively includes a good tray for collecting qualified workpieces and a bad tray for collecting unqualified workpieces, and the sorting and tray loading mechanism 400 sorts and trays the workpieces on the temporary storage and transportation mechanism 300 into the good tray and the bad tray according to the structure detected by the inspection system.
Example 2
As shown in fig. 14, an FPC appearance inspection method applied to the FPC appearance inspection machine in embodiment 1 includes the steps of:
loading a workpiece onto a first carrier 112 at a station 111 of the turntable 11;
double-side inspection, namely synchronously acquiring front or back images of workpieces placed at different inspection stations 111 and sending the images to a control host;
temporarily storing the workpieces, wherein the temporarily storing and conveying mechanism 300 receives the workpieces subjected to double-side inspection and moves the workpieces to a temporarily storing and blanking position;
sorting and loading, wherein the sorting and loading mechanism 400 sorts and grabs the workpieces at the temporary storage blanking position according to the signals fed back by the control host and loads the workpieces into the corresponding material tray 600;
discharging of the material tray: the tray feeding mechanism 500 conveys the trays 600 sorted and palletized to the discharging position.
According to the FPC appearance inspection method, the workpieces are loaded on the first carrier 112 at the station 111 of the turntable 11, the front or back images of the workpieces placed at different inspection stations 111 are synchronously acquired and sent to the control host, so that inspection data of corresponding surfaces of the different workpieces are obtained, and feeding and inspection of the workpieces at different stations 111 are performed in parallel by matching with intermittent rotation of the turntable 11, so that corresponding double-surface image data are finally obtained; then the work piece after will two-sided inspection through transport mechanism 300 of keeping in removes the unloading position of keeping in, and pick by the work piece letter sorting of letter sorting sabot mechanism 400 to unloading position department of keeping in according to the signal of control host computer feedback, in order loading to the charging tray 600 that corresponds, and then the effectual classification to the material that has realized, at last through charging tray feed mechanism 500 with the charging tray 600 after the letter sorting sabot convey to the ejection of compact position ejection of compact, in whole course of the work, because the inspection of work piece and the transfer of work piece are gone on in parallel, and then can realize the parallel high-speed inspection to the two-sided outward appearance of work piece, the effectual stability and the uniformity of having guaranteed the inspection, the efficiency of inspection has been improved.
As an optional embodiment, in the step of double-sided inspection, the method comprises the steps of:
front inspection, wherein a first vision module 121 of the front inspection mechanism 12 collects front images of workpieces placed at a front inspection station and sends the front images to a control host;
and in back inspection, the second vision module 131 of the back inspection mechanism 13 acquires back images of the workpieces placed at the back inspection waiting station and sends the back images to the control host.
As an alternative embodiment, the step of back side inspection comprises:
the back side inspection hand 1321 of the back side inspection mechanism 13 grips the workpiece at the back side inspection material waiting station and moves to the upper part of the second vision system;
the second vision module 131 collects the back images of the workpieces and sends the back images to the control host, and the collected workpieces are transferred to the temporary storage and transportation mechanism 300.
As an alternative embodiment, there are two front side inspection stations, which are a first front side inspection station and a second front side inspection station respectively; one back surface inspection waiting station is provided, and two front surface inspection stations and two back surface inspection waiting stations are arranged in sequence along the rotation direction of the turntable 11, the number of the back surface inspection hand 1321 is two, and when one back surface inspection hand 1321 grips the workpiece at the back surface inspection waiting station, the other back surface inspection hand 1321 is positioned at the back surface inspection waiting station or in the back surface inspection process.
In the front-side inspection process, when the first carrier 112 mounted with the workpiece to be inspected rotates to a first front-side inspection station, the first vision system corresponding to the first front-side inspection station works and collects the front-side image of the workpiece, and at this time, the control host receives the collected signal to start a front-side inspection working thread; then the first carrier 112 rotates to the second front side inspection station, the first vision system corresponding to the second inspection station works, and continues to collect the front side image of the workpiece, and the front side inspection thread continues to work, and at this time, the control host receives the collected signal and feeds back the front side inspection thread to continue working, so as to perform front side inspection on the next workpiece.
In the back side inspection process, the workpiece after the front side inspection is finished rotates to a back side inspection standby station along with the turntable 11, at this time, the control host drives the back side inspection hand 1321 at the back side inspection standby station to grab the workpiece, and moves the workpiece to the upper side of the second vision module 131 for back side inspection operation, at this time, the other back side inspection hand 1321 moves to the back side inspection standby station; after the inspection of the workpiece on the second vision module 131 is completed, the back inspection gripper 1321 gripping the workpiece is transferred to the temporary storage and transportation mechanism 300, and the back inspection gripper 1321 at the back inspection standby station is moved to the back inspection standby station to perform a back inspection operation on the next workpiece.
Two drawing positions are arranged above the second vision module 131, when a workpiece is located at one drawing position, the second vision module 131 acquires an image, the back side inspection thread starts to work, and at the moment, the control host controls the back side inspection hand 1321 to place the workpiece at the other drawing position according to the acquired information so as to continue the back side inspection thread; after the inspection is completed, the workpiece is transferred to the temporary storage and transportation mechanism 300.
As an optional implementation manner, the material tray 600 includes a good product material tray and a defective product material tray, and in the sorting and tray loading process, when the sorting and tray loading mechanism 400 receives a good product signal fed back by the control host, the sorting gripper 41 of the sorting and tray loading mechanism 400 grips the workpiece temporarily stored at the blanking position and moves and places the workpiece to the position of the good product material tray to be fed; when the sorting and tray loading mechanism 400 receives a defective product signal fed back by the control host, the sorting gripper 41 of the sorting and tray loading mechanism 400 grabs and temporarily stores the workpiece at the blanking position, and moves and places the workpiece at the position of a defective product tray to be fed, and after the workpiece tray 600 is full of workpieces, the tray feeding mechanism 500 conveys the workpiece tray 600 containing the workpieces to the discharging position for the operator to take away the workpieces in time; meanwhile, the material tray storage mechanism 51 in the material tray supply mechanism 500 provides a new empty material tray 600, and the empty material tray is adsorbed and conveyed to the material tray conveying mechanism 53 through the material tray adsorption mechanism 521 so as to be continuously discharged by the sorting gripper 41.
It should be understood that the above examples are only for clarity of illustration and are not intended to limit the embodiments. Other variations and modifications will be apparent to persons skilled in the art in light of the above description. And are neither required nor exhaustive of all embodiments. And obvious variations or modifications therefrom are within the scope of the invention.
Claims (10)
1. The utility model provides a two-sided visual inspection mechanism of FPC which characterized in that includes:
the rotary table (11) can intermittently rotate, a plurality of stations (111) are distributed on the rotary table (11), a first carrier (112) for placing a workpiece is correspondingly arranged at each station (111), the first carriers (112) are sequentially transmitted on the stations (111), and each station (111) comprises a front inspection station and a back inspection station for waiting materials;
the inspection system comprises a front inspection mechanism (12) and a back inspection mechanism (13), wherein the front inspection mechanism (12) and the back inspection mechanism (13) are respectively arranged on two axial sides of the turntable (11), the front inspection mechanism (12) is correspondingly arranged at the position of the front inspection station, and the back inspection mechanism (13) is correspondingly arranged at the position of the back inspection material waiting station and is provided with a back inspection station;
the front inspection mechanism (12) comprises a first vision module (121) for inspecting the workpiece on the front inspection station; the back side inspection mechanism (13) comprises a second vision module (131) and a material moving device (132), the material moving device (132) comprises a back side inspection gripper (1321) for gripping the workpiece at the back side inspection material waiting station and a driving device for driving the back side inspection gripper (1321), and the back side inspection gripper (1321) moves back and forth between the back side inspection material waiting station and the second vision module (131); there are two of the backside inspection grippers (1321).
2. The FPC double-sided appearance inspection mechanism according to claim 1, wherein the driving device is provided with a first driving mechanism (1322) and a second driving mechanism (1323) corresponding to each of the back inspection grippers (1321), respectively, the back inspection gripper (1321) is provided with a second carrier for adsorbing the workpiece, the first driving mechanism (1322) is connected to the back inspection gripper (1321) and drives the back inspection gripper (1321) to move back and forth between the back inspection standby station and the second vision module (131), the second driving mechanism (1323) is connected to the back inspection gripper (1321), and a driving direction of the second driving mechanism (1323) is placed in a vertical direction.
3. The FPC double-sided appearance inspection mechanism according to claim 1 or 2, wherein the first vision module (121) and the second vision module (131) are identical and are arranged in opposite directions; the first vision module (121) and the second vision module (131) respectively comprise shooting devices (1211, 1311), combined light sources (1212, 1312) and a multi-path light source controller, through holes are formed in the combined light sources (1212, 1312), and the shooting devices (1211, 1311) shoot the workpiece irradiated by the combined light sources through the through holes.
4. The FPC double-sided appearance inspection mechanism according to claim 1 or 2, wherein there are two front side inspection stations, one back side inspection station, and the two front side inspection stations and the back side inspection station are arranged in sequence in a rotation direction of the turntable (11); the number of the first vision modules (121) is two corresponding to the front inspection stations, and the first vision modules are arranged above the front inspection stations; the second vision module (131) is provided with one corresponding to the back surface inspection material waiting station and is arranged below the back surface inspection material waiting station.
5. An FPC appearance inspection machine is characterized by comprising a machine frame (200), a control host placed on the machine frame (200), an FPC double-sided appearance inspection mechanism, a temporary storage and transportation mechanism (300), a sorting and tray loading mechanism (400) and a tray supply mechanism (500), wherein the FPC double-sided appearance inspection mechanism, the temporary storage and transportation mechanism (300), the sorting and tray loading mechanism (400) and the tray supply mechanism are electrically connected with the control host, the FPC double-sided appearance inspection mechanism is the FPC double-sided appearance inspection mechanism as claimed in any one of claims 1-4, the temporary storage and transportation mechanism (300) is arranged after the process of a back surface inspection mechanism (13), and the sorting and tray loading mechanism (400) is arranged between the temporary storage and transportation mechanism (300) and the tray supply mechanism (; the tray feeding mechanism (500) is arranged at the discharging position of the workpiece on the rack (200).
6. The FPC appearance inspection machine according to claim 5, wherein the temporary storage conveying mechanism (300) comprises a temporary storage jig (31) and a conveying cylinder (32), the temporary storage conveying mechanism (300) is provided with a temporary storage feeding position and a temporary storage blanking position, and the conveying cylinder (32) drives the temporary storage jig (31) to move between the temporary storage feeding position and the temporary storage blanking position.
7. The FPC appearance inspection machine according to claim 5 or 6, wherein the sorting tray mechanism (400) comprises a sorting gripper (41) and a sorting driving mechanism (42), and the sorting driving mechanism (42) is connected with the sorting gripper (41) and drives the sorting gripper (41) to move back and forth along a path from the temporary storage and transportation mechanism (300) to the tray feeding mechanism (500).
8. The FPC appearance inspection machine according to claim 5 or 6, wherein the tray supply mechanism (500) includes a tray storage mechanism (51), a tray carrying mechanism (52), and a tray conveying mechanism (53), the tray storage mechanism (51) is disposed at a front end of the tray carrying mechanism (52), and a tray (600) is stored in the tray storage mechanism (51); the material tray conveying mechanism (52) is arranged above the material tray storage mechanism (51) and the material tray conveying mechanism (53), a material tray adsorption mechanism (521) is arranged on the material tray conveying mechanism (52), and the material tray adsorption mechanism (521) moves back and forth between the material tray storage mechanism (51) and the material tray conveying mechanism (53).
9. An FPC appearance inspection method applied to the FPC appearance inspection machine of any one of claims 5 to 8, characterized by comprising the steps of:
loading workpieces onto a first carrier (112) at a station (111) of a turntable (11);
double-side inspection, namely synchronously acquiring front or back images of the workpieces placed at different inspection stations (111) and sending the images to a control host;
temporarily storing the workpieces, wherein the temporarily storing and conveying mechanism (300) receives the workpieces subjected to double-side inspection and moves the workpieces to a temporarily storing and blanking position;
the sorting and tray loading mechanism (400) sorts and grabs the workpieces at the temporary storage blanking position according to the signals fed back by the control host and loads the workpieces into corresponding material trays (600);
discharging of the material tray: the tray feeding mechanism (500) conveys the trays (600) after sorting and loading to a discharging position.
10. The FPC appearance inspection method according to claim 9, characterized by comprising, in the step of double-sided inspection, the steps of:
the method comprises the steps that front side inspection is carried out, wherein a first vision module (121) of a front side inspection mechanism (12) collects front side images of a workpiece placed at a front side inspection station and sends the front side images to a control host;
and back surface inspection, wherein a second vision module (131) of the back surface inspection mechanism (13) collects back surface images of the workpieces placed at a back surface inspection material waiting station and sends the back surface images to the control host.
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| CN107884702A (en) * | 2017-10-17 | 2018-04-06 | 豫鑫达（深圳）智能化设备有限责任公司 | A kind of FPC function automatic detections machine |
| CN108971009B (en) * | 2018-04-27 | 2024-04-02 | 成都西纬科技有限公司 | Detection equipment for product appearance |
| CN109239100B (en) * | 2018-10-24 | 2024-04-02 | 东莞市乐琪光电科技有限公司 | Lithium battery surface detection equipment |
| CN109433652B (en) * | 2018-11-01 | 2020-12-11 | 昆山市泽荀自动化科技有限公司 | Feeding operation control method of inductance detection equipment |
| CN109613003A (en) * | 2018-12-12 | 2019-04-12 | 江西理工大学 | A kind of appearance quality detecting device and method |
| CN111665250A (en) * | 2019-03-07 | 2020-09-15 | 宁波舜宇光电信息有限公司 | Appearance detection device and method |
| CN111665194A (en) * | 2019-03-07 | 2020-09-15 | 宁波舜宇光电信息有限公司 | Appearance detection system and detection method |
| CN109946321B (en) * | 2019-03-29 | 2022-04-08 | 广东利元亨智能装备股份有限公司 | Detection method of battery cell flexible circuit board |
| CN110238081A (en) * | 2019-06-21 | 2019-09-17 | 广州蓝海智能装备有限公司 | A kind of eyeglass front and back sides are detected automatically and sorting device |
| CN110900292B (en) * | 2019-12-04 | 2021-03-09 | 台州来智科技有限公司 | Automatic tool for trundle bracket |
| CN111093326A (en) * | 2019-12-23 | 2020-05-01 | 昆山倍驰自动化设备有限公司 | Electronic equipment base plate outward appearance detection device |
| CN111776650B (en) * | 2020-07-22 | 2021-11-09 | 丘林城 | Four-dimensional displacement positioning system based on Internet of things |
| CN112304945A (en) * | 2020-10-23 | 2021-02-02 | 欧菲影像技术（广州）有限公司 | Single appearance inspection equipment of camera module Cube |
| CN112730250B (en) * | 2020-12-29 | 2023-08-25 | 业成科技（成都）有限公司 | Detection jig and detection method |
| CN113819868A (en) * | 2021-01-29 | 2021-12-21 | 常州铭赛机器人科技股份有限公司 | Hot-pressing detection system and method |
| CN113458007B (en) * | 2021-06-24 | 2023-11-14 | 盐城维信电子有限公司 | Correlation equipment and defective product detection method thereof |
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| US7987968B2 (en) * | 2004-04-13 | 2011-08-02 | Tdk Corporation | Chip component carrying method and system, and visual inspection method and system |
| CN101683648A (en) * | 2008-09-26 | 2010-03-31 | 三星科技股份有限公司 | Sorting machine with reflecting mirrors |
| CN101858728B (en) * | 2009-04-08 | 2013-03-20 | 鸿富锦精密工业（深圳）有限公司 | Measurement equipment and measurement method |
| CN201446092U (en) * | 2009-06-26 | 2010-05-05 | 致茂电子(苏州)有限公司 | Classification system with initial survey qualified solar wafer pivoting and dividing device |
| CN203044369U (en) * | 2013-01-08 | 2013-07-10 | 深圳市大族激光科技股份有限公司 | Automatic classification and collection system |
| CN204620477U (en) * | 2015-03-26 | 2015-09-09 | 宁波科瑞特光电技术有限公司 | A kind of material choosing apparatus of reinforcing chip |
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