CN113182212A - Circuit board visual detection mechanism and detection method thereof - Google Patents
Circuit board visual detection mechanism and detection method thereof Download PDFInfo
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- CN113182212A CN113182212A CN202110527308.1A CN202110527308A CN113182212A CN 113182212 A CN113182212 A CN 113182212A CN 202110527308 A CN202110527308 A CN 202110527308A CN 113182212 A CN113182212 A CN 113182212A
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- circuit board
- fixed
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- supporting
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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
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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
- B07C5/02—Measures preceding sorting, e.g. arranging articles in a stream orientating
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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
- B07C5/36—Sorting apparatus characterised by the means used for distribution
- B07C5/361—Processing or control devices therefor, e.g. escort memory
- B07C5/362—Separating or distributor mechanisms
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Abstract
The invention provides a visual detection mechanism of a circuit board and a detection method thereof, belonging to the technical field of circuit board detection equipment, wherein the visual detection mechanism of the circuit board comprises a supporting base, wherein the left side and the right side of the supporting base are respectively provided with two second supporting plates and a first supporting plate; the feeding mechanism is positioned between the two first supporting plates and is used for bearing the circuit board; the two groups of grabbing mechanisms are respectively positioned at the upper sides of the second supporting plate and the first supporting plate and are respectively used for grabbing the circuit board and enabling the circuit board to move linearly in the transverse direction or the longitudinal direction; the bottoms of the two portal frames are respectively fixed at the upper ends of the two first supporting plates; the invention enables the circuit board to take a photo by transmitting light, thereby enabling the circuit board to more clearly display whether the printed part has defects or not, being more accurate in distinguishing and not easy to generate errors.
Description
Technical Field
The invention belongs to the technical field of circuit board detection equipment, and particularly relates to a circuit board visual detection mechanism and a detection method thereof.
Background
The circuit board has the name: ceramic circuit board, alumina ceramic circuit board, aluminum nitride ceramic circuit board, PCB board, aluminum substrate, high frequency board, thick copper board, impedance board, PCB, ultra-thin circuit board, printed (copper etching technology) circuit board, etc. The circuit board enables the circuit to be miniaturized and visualized, and plays an important role in batch production of fixed circuits and optimization of electric appliance layout.
The circuit board can be directed against needs part and print, and the effect after the printing detects, and reuse solvent dissolves the unprinted part after the printing and has realized having directly influenced subsequent process to needs circuit board part's processing procedure, and the effect after the printing mainly judges through subjective vision, and is not only inefficient for current detection printing effect is the error that produces easily moreover, thereby causes bigger mistake easily when leading to subsequent use.
Disclosure of Invention
The invention aims to provide a visual detection mechanism for a circuit board, and aims to solve the problems that in the prior art, the circuit board can be printed on a required part, the printed effect is detected, the non-printed part is dissolved by using a solvent after printing, the treatment process for the part of the required circuit board is realized, the printed effect directly influences the subsequent process, the existing detection printing effect is mainly judged by subjective vision, the efficiency is low, the detection effect is easy to generate errors, and larger errors are easy to generate during subsequent use.
In order to achieve the purpose, the invention provides the following technical scheme:
circuit board visual detection mechanism includes:
the left side and the right side of the supporting base are respectively provided with two second supporting plates and a first supporting plate;
the feeding mechanism is positioned between the two first supporting plates and is used for bearing the circuit board;
the two groups of grabbing mechanisms are respectively positioned at the upper sides of the second supporting plate and the first supporting plate and are respectively used for grabbing the circuit board and enabling the circuit board to move linearly in the transverse direction or the longitudinal direction;
the bottom parts of the two portal frames are respectively fixed at the upper ends of the two first supporting plates, and the two portal frames are connected with the grabbing mechanism positioned on the right side so as to be fixed above the first supporting plates;
the bottoms of the two L-shaped frames are respectively fixed at the upper ends of the two second supporting plates, and the two L-shaped frames are connected with the grabbing mechanism positioned on the left side so as to be fixed above the second supporting plates;
the three groups of conveying mechanisms are respectively connected with the supporting base and the two second supporting plates to realize the transportation of the circuit board, and are electrically connected sequentially through a communication line;
the photographing mechanism is positioned on the upper side of the supporting base and is used for photographing and uploading the circuit board transported by the transport mechanism; and
the collection mechanism comprises an abnormal collection plate, a plurality of OK collection plates and a plurality of problem collection plates, the abnormal collection plate is fixed at the left ends of the two second support plates, one end of each of the two second support plates is provided with a fixing groove matched with the OK collection plate and the problem collection plate, the OK collection plates and the problem collection plates are fixedly arranged in the fixing grooves respectively, and the OK collection plates and the problem collection plates are staggered up and down.
As a preferable scheme of the present invention, the feeding mechanism includes a fixing rod and a feeding table, the fixing rod is fixed between the left adjacent ends of the two first supporting plates, and the feeding table is fixed at the right end of the fixing rod.
As a preferred scheme of the invention, each group of the grabbing mechanisms consists of a slide rail, a screw nut driving assembly, a slide block, a telescopic assembly and a suction assembly, the slide rails in the two groups of grabbing mechanisms are respectively distributed transversely and longitudinally, and the two slide rails are respectively fixed between two L-shaped frames and the bottom wall of a portal frame; the slider sliding connection is on the slide rail, be connected between screw-nut drive assembly and the slider in order to realize that it makes linear motion, all be connected between flexible subassembly and the slider and the absorption subassembly in order to realize absorbing the subassembly and make linear motion from top to bottom, it is used for snatching the circuit board to absorb the subassembly.
As a preferable scheme of the invention, each group of the telescopic assemblies comprises a fixed plate, a first connecting plate and three cylinders, the fixed plate is fixed at the lower end of the sliding block, the upper ends of the three cylinders are fixed at the lower end of the fixed plate, and the upper end of the first connecting plate and the output ends of the three cylinders are fixed.
As a preferred scheme of the present invention, each of the suction assemblies includes an air pump, two second connection plates, four suction cups and four communication pipes, the air pump is fixed to the upper end of the first connection plate, the two second connection plates are respectively fixed to two sides of the lower end of the first connection plate, the four suction cups are respectively fixed to the four second connection plates through bolts, the four suction cups are distributed in a rectangular shape, one end of each of the four communication pipes is fixedly connected to an output end of the air pump, and the other end of each of the four communication pipes is respectively fixed to and communicated with the insides of the four suction cups.
As a preferred scheme of the invention, each group of conveying mechanisms comprises a transmission shaft, two transverse plates and two conveying belts, the two transverse plates are respectively fixed at the front part and the rear part of the upper end of the supporting base, the two conveying belts are rotatably connected between the end parts of the two transverse plates, and the transmission shaft is in transmission connection with the circumferential surfaces of the two conveying belts; the front ends of the conveying belts on the left side in the three groups of conveying mechanisms respectively movably penetrate through the front ends of the three transverse plates on the front side and extend forwards, spool wheels are fixed on the circumferential surfaces of the extension ends of the three conveying belts, belts are connected between the circumferential surfaces of the spool wheels in a transmission mode, a second motor is fixed at the rear end of one transverse plate, and an output shaft of the second motor movably penetrates through the front ends of the transverse plates and is fixed with the end portion of one conveying belt on the left side.
As a preferred scheme of the invention, the photographing mechanism comprises a photographing box, a fixed seat and a camera, the photographing box is fixed at the upper end of the supporting base, the bottom of the photographing box is a notch, and the lower parts of the left and right ends of the photographing box are respectively provided with a notch allowing the circuit board to be transported; the camera and the fixing seat are both provided with a plurality of one-to-one correspondence, the fixing seat is fixed on the upper inner wall of the photographing box, and the camera is movably connected to the lower end of the fixing seat.
As a preferred scheme of the invention, a tray is fixed between the front inner wall and the rear inner wall of the photographing box, the bottom of the tray is attached to the upper surface of one of the transmission shafts, an inclined surface is arranged on one side of the tray close to the fixed rod, a plurality of uniformly distributed mounting grooves are formed in the upper end of the tray, lamp beads are fixedly mounted in the mounting grooves, and the lamp beads are electrically connected with an external power supply.
In a preferred embodiment of the present invention, a plurality of second reinforcing rods are fixed between the adjacent ends of the two second supporting plates, and a plurality of first reinforcing rods are fixed between the adjacent ends of the two first supporting plates.
As a preferred embodiment of the present invention, a method for inspecting a circuit board visual inspection mechanism, which uses the circuit board visual inspection mechanism of any one of claims 1 to 9, comprises the following steps:
s1: when a circuit board needs to be detected, the circuit board is placed on a feeding table, an air cylinder is started to drive a sucker in a suction assembly to move downwards and contact with the upper surface of the circuit board, an air suction pump is started to vacuumize the sucker through a communicating pipe, so that the sucker has adsorption force and can adsorb the circuit board, the sucker is driven to ascend through the air cylinder again, a sliding block is driven to move leftwards through a screw nut driving assembly, the sliding block drives the air cylinder to move through a fixing plate, the air cylinder drives the sucker to move, and finally the circuit board falls on a conveying belt on the left side;
s2; the second motor is started, an output shaft of the second motor drives the transmission shaft to rotate, the transmission shaft drives the I-shaped wheels fixed with the transmission shaft to rotate, the belt is in transmission connection with the circumferential surfaces of the three I-shaped wheels, and the conveyor belts are in transmission connection with the circumferential surfaces of the two transmission shafts, so that the transmission shafts respectively drive the conveyor belts to perform transmission, and when the circuit board falls onto the conveyor belt on the left side, the circuit board moves rightwards;
s3: when the circuit board passes through the tray, the circuit board is pushed to the upper side of the tray through the conveyor belt, light emitted by the lamp beads arranged on the tray penetrates through the circuit board, the circuit board is subjected to light transmission shooting by the camera at the moment, after shooting is finished, data are output to the control end through the camera and compared with the stored data center, and after the comparison is finished, the circuit board can be slightly pushed so that the circuit board falls on the conveyor belt to be transmitted;
s4: when the circuit board is positioned on the conveyor belt on the left side, the grabbing mechanism on the left side is started at the moment, so that the circuit board is adsorbed by the sucking disc and is distinguished, the circuit board is moved out to one side when qualified, and the circuit board is moved to the other side when unqualified; finally, the circuit boards are conveyed to a collecting mechanism through a conveying belt, so that qualified circuit boards and unqualified circuit boards can be placed in a distinguishing mode.
Compared with the prior art, the invention has the beneficial effects that:
1. the plurality of cameras are arranged in the scheme, the circuit boards are photographed, whether the printed circuit boards are qualified or not is distinguished, and the qualified circuit boards are placed in a partition mode through the grabbing mechanism, so that the detection efficiency of the circuit boards is higher; when the circuit board was shot, the light that sends through the lamp pearl sees through the circuit board for the circuit board carries out the printing opacity and shoots, thereby whether the demonstration printed portion that makes the circuit board more clear has the defect, and is more accurate when distinguishing, is difficult for producing the error.
2. Through the absorption subassembly that is equipped with in this scheme for the sucking disc adsorbs through the mode of evacuation when snatching the circuit board, makes the circuit board adsorb more firmly, is difficult for dropping the damage.
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 first perspective view of the present invention;
FIG. 2 is a second perspective view of the present invention;
FIG. 3 is an enlarged view of a portion of the present invention at B of FIG. 2;
FIG. 4 is a third perspective view of the present invention;
FIG. 5 is an enlarged view of a portion of the invention at A in FIG. 4;
FIG. 6 is a partial perspective view of a photographing mechanism according to the present invention;
FIG. 7 is an enlarged view of a portion of the tray of the present invention;
fig. 8 is a fourth perspective view of the present invention.
In the figure: 1. a support base; 2. a first support plate; 201. a first reinforcement bar; 3. a second support plate; 301. a second reinforcement bar; 4. a photographing box; 5. a camera; 51. a fixed seat; 6. a grabbing mechanism; 61. a slide rail; 62. a first motor; 63. a slider; 64. a fixing plate; 641. a cylinder; 642. a first connecting plate; 65. an air pump; 651. a communicating pipe; 652. a suction cup; 653. a second connecting plate; 7. a transport mechanism; 701. a conveyor belt; 702. a drive shaft; 703. a transverse plate; 8. an anomaly collection plate; 801. an OK collecting plate; 802. a problem collection plate; 9. an L-shaped frame; 10. a spool; 11. a belt; 12. a tray; 121. mounting grooves; 122. a lamp bead; 13. a second motor; 14. fixing the rod; 141. a feeding table; 15. a portal frame.
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.
Example 1
Referring to fig. 1-8, the present invention provides the following technical solutions:
circuit board visual detection mechanism includes:
the supporting device comprises a supporting base 1, wherein two second supporting plates 3 and two first supporting plates 2 are respectively arranged on the left side and the right side of the supporting base 1;
the feeding mechanism is positioned between the two first supporting plates 2 and is used for bearing the circuit board;
the two groups of grabbing mechanisms 6 are respectively positioned at the upper sides of the second supporting plate 3 and the first supporting plate 2, and the two groups of grabbing mechanisms 6 are respectively used for grabbing the circuit board and enabling the circuit board to move transversely or longitudinally in a straight line;
the bottom parts of the two portal frames 15 are respectively fixed at the upper ends of the two first supporting plates 2, and the two portal frames 15 are connected with the grabbing mechanism 6 positioned on the right side so as to be fixed above the first supporting plates 2;
the bottoms of the two L-shaped frames 9 are respectively fixed at the upper ends of the two second supporting plates 3, and the two L-shaped frames 9 are connected with the grabbing mechanism 6 positioned on the left side so as to be fixed above the second supporting plates 3;
the three groups of conveying mechanisms 7 are arranged above the supporting base 1, the other group of conveying mechanisms 7 are arranged at the centers of the tops of the two second supporting plates 3, the three groups of conveying mechanisms 7 are respectively connected with the supporting base 1 and the two second supporting plates 3 to realize the transportation of the circuit board, and the three groups of conveying mechanisms 7 are electrically connected through communication lines in sequence;
the photographing mechanism is positioned on the upper side of the supporting base 1 and is used for photographing and uploading the circuit board transported by the transport mechanism 7; and
collect the mechanism, collect the mechanism by unusual collecting plate 8, a plurality of OK collecting plates 801 and a plurality of problem collecting plates 802 are constituteed, unusual collecting plate 8 is fixed in the left end of two second backup pads 3, the one end of two second backup pads 3 all seted up with OK collecting plate 801 and problem collecting plate 802 assorted fixed slot, a plurality of OK collecting plates 801 and problem collecting plate 802 are fixed respectively and are set up in a plurality of fixed slots, and a plurality of OK collecting plates 801 and problem collecting plate 802 are crisscross from top to bottom.
In the embodiment of the invention, the supporting base 1 in the device is used for supporting two groups of conveying mechanisms 7 and photographing mechanisms, two second supporting plates 3 are used for supporting an L-shaped frame 9 and one group of conveying mechanisms 7, two first supporting plates 2 are used for supporting a feeding mechanism and two portal frames 15, the feeding mechanism is used for placing a printed circuit board and grabbing the circuit board through a grabbing mechanism 6, the grabbing mechanism 6 consists of a slide rail 61, a screw nut driving component, a slide block 63, a telescopic component and a suction component, the slide rail 61 is fixed on the two portal frames 15, the portal frames 15 are used for supporting the L-shaped frame 9, the slide rail 61 is transversely fixed, so that the slide block 63 can transversely move linearly, the slide block 63 is driven through the screw nut driving component, the screw nut driving component consists of a first motor 62, a screw rod and a screw nut, the screw rod is fixed in the slide rail 61, the screw rod nut is in threaded connection with the circumferential surface of the screw rod, the screw rod nut is fixed with the sliding block 63, a bevel gear is fixed at one end of the screw rod through an output shaft of the first motor 62, and the two bevel gears are meshed with each other, so that the output shaft of the first motor 62 can drive the screw rod to rotate, the screw rod nut drives the sliding block 63 to do linear motion, at the moment, the output end of the air cylinder 641 drives the first connecting plate 642 to move up and down through starting the air cylinder 641, the first connecting plate 642 drives the bottom of the sucker 652 to be attached to a circuit through the second connecting plate 653, then the air pump 65 is started, an air suction port of the air pump 65 vacuumizes the inside of the sucker 652 through the communicating pipe 651, the sucker 652 has adsorption force, the circuit board can be adsorbed, at the moment, the sucker 652 is driven to ascend through the air cylinder 641, at the moment, the sliding block 63 is driven to move leftwards through the screw rod nut driving component, the slide block 63 drives the cylinder 641 to move through the fixing plate 64, so that the cylinder 641 drives the sucker 652 to move, the circuit board finally falls on the conveyor belt 701 in the left-side conveying mechanism 7, then the circuit board is conveyed to the tray 12 in the photographing box 4 through the cylinder, the light emitted by the lamp beads 122 penetrates through the circuit board, the circuit board is subjected to light transmission photographing, at the moment, the circuit board is photographed through the camera 5, the camera 5 transmits the picture of the circuit board subjected to light transmission photographing to the external control end and compares the picture with the stored data, so that the circuit board is continuously conveyed to the upper side of the second supporting plate 3, then the left-side grabbing mechanism 6 is started, the working principle of the circuit board is the same as that of the right side, only the moving direction of the circuit board is in longitudinal linear movement, the sucker 652 sucks the circuit board, moves the qualified circuit board out of one side to the OK collecting plate 801, and moves to the problem collecting plate 802 on the other side for distinguishing, a front part and a rear part which are arranged on the upper side of the conveyor belt 701; finally, the circuit board is conveyed to a collecting mechanism through a conveyor belt 701, an abnormal collecting plate 8 is used for collecting abnormal circuit boards, an OK collecting plate 801 is used for collecting OK boards, a problem collecting plate 802 is used for collecting problem boards, and qualified circuit boards and unqualified circuit boards can be placed in a distinguishing mode.
Preferably, the device is controlled by a single chip microcomputer arranged at an external control end, the single chip microcomputer is electrically connected with the camera 5, the air cylinder 641, the air suction pump 65, the first motor 62, the second motor 13 and the lamp bead 122 respectively to realize automatic control, and an electronic control circuit is arranged in the single chip microcomputer;
in this embodiment: according to the invention, the camera 5, the cylinder 641, the air pump 65, the first motor 62, the second motor 13 and the lamp bead 122 are correspondingly and automatically controlled through the single chip microcomputer and the corresponding electronic control circuit, and based on the idea of the invention, a person skilled in the art can easily set the corresponding electronic control circuit, in other words, how to realize the automatic control belongs to the common knowledge of the person skilled in the art, and therefore, the description is omitted; it should be noted that: what type of singlechip, camera 5, cylinder 641, aspiration pump 65, first motor 62, second motor 13 and lamp pearl 122 specifically used are selected by the familiar correlation technique personnel in this field by oneself, and above all belong to prior art about singlechip, camera 5, cylinder 641, aspiration pump 65, first motor 62, second motor 13 and lamp pearl 122 etc. this scheme is not repeated and is described
Specifically referring to fig. 5, the feeding mechanism includes a fixing rod 14 and a feeding platform 141, the fixing rod 14 is fixed between the left adjacent ends of the two first supporting plates 2, and the feeding platform 141 is fixed at the right end of the fixing rod 14; by placing the circuit board on the feeding table 141, the suction cup 652 is facilitated to suck, and the fixing rod 14 is used for supporting the feeding table 141, so that the fixing is stable.
Specifically, referring to fig. 1 and fig. 3, each group of grabbing mechanism 6 consists of a sliding rail 61, a screw nut driving assembly, a sliding block 63, a telescopic assembly and a sucking assembly, the sliding rails 61 in the two groups of grabbing mechanisms 6 are respectively distributed in the transverse direction and the longitudinal direction, and the two sliding rails 61 are respectively fixed between the two L-shaped frames 9 and the bottom wall of the portal frame 15; the sliding block 63 is connected to the sliding rail 61 in a sliding manner, the screw nut driving assembly is connected with the sliding block 63 to realize linear motion of the screw nut driving assembly, the telescopic assembly is connected with the sliding block 63 and the suction assembly to realize linear motion of the suction assembly up and down, and the suction assembly is used for grabbing a circuit board; two sets of mechanisms 6 that snatch are used for the centre gripping of circuit board material loading and the centre gripping of unloading difference respectively for circuit board detection efficiency increases, has reduced hand labor's consumption.
Specifically referring to fig. 3, each set of telescopic assemblies includes a fixing plate 64, a first connecting plate 642 and three cylinders 641, the fixing plate 64 is fixed to the lower end of the sliding block 63, the upper ends of the three cylinders 641 are fixed to the lower end of the fixing plate 64, and the upper ends of the first connecting plate 642 and the output ends of the three cylinders 641 are fixed together.
In this embodiment: the output shaft through the feeding table 141 drives the first connecting plate 642 to move up and down, so that the first connecting plate 642 can drive the sucker 652 in the driving assembly to be better attached to and adsorbed by the circuit board, and the circuit board can be better moved.
Referring to fig. 3 specifically, each group of suction assemblies includes a suction pump 65, two second connecting plates 653, four suction cups 652 and four communicating pipes 651, the suction pump 65 is fixed to the upper end of the first connecting plate 642, the two second connecting plates 653 are respectively fixed to two sides of the lower end of the first connecting plate 642, the four suction cups 652 are respectively fixed to the four second connecting plates 653 through bolts, the four suction cups 652 are distributed in a rectangular shape, one end of each of the four communicating pipes 651 is fixedly connected to an output end of the suction pump 65, and the other end of each of the four communicating pipes 651 is respectively fixed to the four suction cups 652 and respectively communicated with the interiors of the four suction cups 652.
In this embodiment: through starting aspiration pump 65 for the evacuation pump 65 carries out the evacuation in with sucking disc 652 through communicating pipe 651, laminates with the circuit board at sucking disc 652, can live the circuit board absorption better, makes it be difficult for dropping.
Specifically, referring to fig. 1, fig. 6 and fig. 8, each set of conveying mechanism 7 includes a transmission shaft 702, two transverse plates 703 and two conveyor belts 701, the two transverse plates 703 are respectively fixed at the front and rear parts of the upper end of the supporting base 1, the two conveyor belts 701 are rotatably connected between the adjacent end parts of the two transverse plates 703, and the transmission shaft 702 is in transmission connection with the circumferential surfaces of the two conveyor belts 701; the front ends of the left-side conveyor belts 701 in the three sets of conveying mechanisms 7 respectively movably penetrate through the front ends of the three transverse plates 703 and extend forwards, spool 10 is fixed on the circumferential surfaces of the extending ends of the three conveyor belts 701, a belt 11 is connected between the circumferential surfaces of the spool 10 in a transmission manner, a second motor 13 is fixed on the rear end of one transverse plate 703, and an output shaft of the second motor 13 movably penetrates through the front ends of the transverse plates 703 and is fixed with the end portion of one of the left-side conveyor belts 701.
In this embodiment: by starting the second motor 13, the output shaft of the second motor 13 drives the transmission shaft 702 fixed with the second motor to rotate, the transmission shaft 702 drives the spool 10 fixed with the transmission shaft to rotate, the belt 11 is in transmission connection with the circumferential surfaces of the three spools 10, and the conveyor belt 701 is in transmission connection with the circumferential surfaces of the two transmission shafts 702, so that the transmission shafts 702 respectively drive the conveyor belts 701 to perform transmission, and when a circuit board falls on the conveyor belt 701 on the left side, the circuit board moves rightwards; the circuit board is stable in transportation and clear in photographing.
Referring to fig. 6, the photographing mechanism includes a photographing box 4, a fixing seat 51 and a camera 5, the photographing box 4 is fixed on the upper end of the supporting base 1, the bottom of the photographing box 4 is a gap, and the lower parts of the left and right ends of the photographing box 4 are both provided with gaps allowing the circuit board to be transported; camera 5 and fixing base 51 all are equipped with a plurality ofly and the one-to-one, and fixing base 51 is fixed in the last inner wall of case 4 of shooing, and camera 5 swing joint is in fixing base 51's lower extreme.
In this embodiment: through being equipped with a plurality of cameras 5 for it is all-round to shoot, and is more clear, difficult error that produces, and fixing base 51 is used for fixed camera 5 simultaneously, through the fix with screw between fixing base 51 and the camera 5, makes camera 5 can be according to actual demand angle regulation, convenient regulation.
Referring to fig. 7 specifically, a tray 12 is fixed between the front inner wall and the rear inner wall of the photographing box 4, the bottom of the tray 12 is attached to the upper surface of one of the transmission shafts 702, an inclined surface is arranged on one side of the tray 12 close to the fixing rod 14, a plurality of uniformly distributed mounting grooves 121 are formed in the upper end of the tray 12, lamp beads 122 are fixedly mounted in the mounting grooves 121, and the lamp beads 122 are electrically connected with an external power supply.
In this embodiment: through the tray 12 that is equipped with, and the one end of tray 12 is the inclined plane for on the circuit board can get into tray 12 better when passing through conveyer belt 701 transmission, mounting groove 121 is used for installing lamp pearl 122, and the light that sends through lamp pearl 122 sees through the circuit board, makes the circuit board carry out the printing opacity and shoots, thereby whether the more clear demonstration printed portion of making the circuit board has the defect, more accurate when distinguishing, difficult production error.
Specifically, referring to fig. 1, a plurality of uniformly distributed second reinforcing rods 301 are fixed between the adjacent ends of the two second supporting plates 3, and a plurality of uniformly distributed first reinforcing rods 201 are fixed between the adjacent ends of the two first supporting plates 2.
In this embodiment: further strengthen the connection between two second backup pads 3 and the first backup pad 2 through a plurality of second stiffener 301 and first stiffener 201 for second backup pad 3 is more firm when placing on the ground with first backup pad 2, is difficult for rocking, and is more stable.
The working principle and the using process of the invention are as follows: the detection method of the circuit board visual detection mechanism comprises the following steps:
s1: when a circuit board needs to be detected, the circuit board is firstly placed on the feeding table 141, the air cylinder 641 is started to drive the suction cup 652 in the suction assembly to move downwards and contact with the upper surface of the circuit board, then the air suction pump 65 is started, so that an air suction port of the air suction pump 65 vacuumizes the interior of the suction cup 652 through the communicating pipe 651, the suction cup 652 has suction force and can suck the circuit board, the air cylinder 641 drives the suction cup 652 to ascend again, the lead screw nut drives the assembly to drive the sliding block 63 to move leftwards, the sliding block 63 drives the air cylinder 641 to move through the fixing plate 64, and the air cylinder 641 drives the suction cup 652 to move, so that the circuit board finally falls on the conveyor belt 701 on the left side;
s2; at the moment, the second motor 13 is started, the output shaft of the second motor 13 drives the transmission shaft 702 fixed with the second motor to rotate, the transmission shaft 702 drives the spool 10 fixed with the transmission shaft 702 to rotate, the belt 11 is in transmission connection with the circumferential surfaces of the three spools 10, and the conveyor belt 701 is in transmission connection with the circumferential surfaces of the two transmission shafts 702, so that the transmission shafts 702 respectively drive the conveyor belts 701 to perform transmission, and when the circuit board falls on the conveyor belt 701 on the left side, the circuit board moves rightwards at the moment;
s3: when the circuit board passes through the tray 12, the circuit board is pushed to the upper side of the tray 12 through the conveyor belt 701, light emitted by the lamp beads 122 installed on the tray 12 penetrates through the circuit board, at the moment, the camera 5 conducts light transmission shooting on the circuit board, after shooting is completed, data are output to the control end through the camera 5 to be compared with a stored data center, and after comparison is completed, the circuit board can be pushed slightly to enable the circuit board to fall on the conveyor belt 701 for transmission;
s4: when the circuit board is positioned on the left conveyor belt 701, the grabbing mechanism 6 on the left side is started at the moment, the operation steps are the same as those in S1, so that the circuit board is sucked by the suction cup 652 and is distinguished, the circuit board is moved out to an OK collecting plate from one side and is not qualified, and the circuit board is moved to a problem collecting plate on the other side and is distinguished from the other side; and finally, the abnormal circuit boards are conveyed to the abnormal collecting board through the conveying belt 701, so that the qualified circuit boards and the unqualified circuit boards can be placed in a distinguishing way.
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 (10)
1. Circuit board visual detection mechanism, its characterized in that includes:
the supporting device comprises a supporting base (1), wherein two second supporting plates (3) and a first supporting plate (2) are respectively arranged on the left side and the right side of the supporting base (1);
the feeding mechanism is positioned between the two first supporting plates (2) and is used for bearing the circuit board;
the two groups of grabbing mechanisms (6) are respectively positioned at the upper sides of the second supporting plate (3) and the first supporting plate (2), and the two groups of grabbing mechanisms (6) are respectively used for grabbing the circuit board and enabling the circuit board to do horizontal or longitudinal linear movement;
the bottom parts of the two portal frames (15) are respectively fixed at the upper ends of the two first supporting plates (2), and the two portal frames (15) are connected with the grabbing mechanism (6) positioned on the right side so as to be fixed above the first supporting plates (2);
the bottoms of the two L-shaped frames (9) are respectively fixed at the upper ends of the two second supporting plates (3), and the two L-shaped frames (9) are connected with the grabbing mechanism (6) positioned on the left side to fix the L-shaped frames above the second supporting plates (3);
three groups of conveying mechanisms (7), wherein two groups of conveying mechanisms (7) are positioned above the supporting base (1), the other group of conveying mechanisms (7) are positioned at the centers of the tops of the two second supporting plates (3), the three groups of conveying mechanisms (7) are respectively connected with the supporting base (1) and the two second supporting plates (3) to realize the transportation of the circuit board, and the three groups of conveying mechanisms (7) are electrically connected through a communication line in sequence;
the photographing mechanism is positioned on the upper side of the supporting base (1) and is used for photographing and uploading the circuit board transported by the conveying mechanism (7); and
the collection mechanism comprises an abnormal collection plate (8), a plurality of OK collection plates (801) and a plurality of problem collection plates (802), the abnormal collection plate (8) is fixed at the left ends of the two second support plates (3), fixing grooves matched with the OK collection plates (801) and the problem collection plates (802) are formed in one ends of the two second support plates (3), the OK collection plates (801) and the problem collection plates (802) are fixedly arranged in the fixing grooves respectively, and the OK collection plates (801) and the problem collection plates (802) are staggered up and down.
2. The visual circuit board inspection mechanism of claim 1, wherein the feeding mechanism comprises a fixing rod (14) and a feeding table (141), the fixing rod (14) is fixed between the left side and the near end of the two first support plates (2), and the feeding table (141) is fixed at the right end of the fixing rod (14). [ parts of the fixing rod (14) and the loading table (141) are concentrated in the figure, and the marks are easy to be confused, so that the parts are enlarged and marked in the figure 5 ]
3. The visual circuit board detection mechanism according to claim 2, wherein each group of the grabbing mechanisms (6) consists of a sliding rail (61), a screw nut driving assembly, a sliding block (63), a telescopic assembly and a suction assembly, the sliding rails (61) in the two groups of grabbing mechanisms (6) are respectively distributed transversely and longitudinally, and the two sliding rails (61) are respectively fixed between the two L-shaped frames (9) and the bottom wall of the portal frame (15); slider (63) sliding connection is on slide rail (61), be connected between screw-nut drive assembly and slider (63) and make rectilinear motion in order to realize it, all be connected between flexible subassembly and slider (63) and the absorption subassembly in order to realize absorbing the subassembly and make rectilinear motion from top to bottom, it is used for snatching the circuit board to absorb the subassembly.
4. The visual inspection mechanism of circuit board according to claim 3, wherein each set of said telescopic assemblies comprises a fixed plate (64), a first connecting plate (642) and three cylinders (641), said fixed plate (64) is fixed to the lower end of the sliding block (63), the upper ends of said three cylinders (641) are fixed to the lower end of the fixed plate (64), and the upper end of the first connecting plate (642) and the output ends of the three cylinders (641) are fixed to each other.
5. The visual circuit board detection mechanism according to claim 4, wherein each group of the suction assemblies comprises a suction pump (65), two second connecting plates (653), four suction cups (652) and four communicating pipes (651), the suction pump (65) is fixed at the upper end of the first connecting plate (642), the two second connecting plates (653) are respectively fixed at two sides of the lower end of the first connecting plate (642), the four suction cups (652) are respectively fixed on the four second connecting plates (653) through bolts, the four suction cups (652) are distributed in a rectangular shape, one ends of the four communicating pipes (651) are respectively fixedly connected with the output end of the suction pump (65), and the other ends of the four communicating pipes (651) are respectively fixed between the four suction cups (652) and respectively communicated with the interiors of the four suction cups (652).
6. The visual circuit board detection mechanism according to claim 5, wherein each set of the conveying mechanism (7) comprises a transmission shaft (702), two transverse plates (703) and two conveyor belts (701), the two transverse plates (703) are respectively fixed at the front and rear parts of the upper end of the support base (1), the two conveyor belts (701) are rotatably connected between the end parts of the two transverse plates (703) which are close to each other, and the transmission shaft (702) is in transmission connection with the circumferential surfaces of the two conveyor belts (701); the front ends of the conveying belts (701) positioned on the left side in the three groups of conveying mechanisms (7) respectively and movably penetrate through the front ends of the three transverse plates (703) positioned on the front side and extend forwards, the circumferential surfaces of the extending ends of the three conveying belts (701) are respectively fixed with a spool (10), a belt (11) is in transmission connection between the circumferential surfaces of the spools (10), the rear end of one transverse plate (703) is fixed with a second motor (13), and an output shaft of the second motor (13) movably penetrates through the front end of the transverse plate (703) and is fixed with the end of one conveying belt (701) positioned on the left side.
7. The visual inspection mechanism for circuit boards according to claim 6, wherein the photographing mechanism comprises a photographing box (4), a fixing seat (51) and a camera (5), the photographing box (4) is fixed on the upper end of the supporting base (1), the bottom of the photographing box (4) is a notch, and the lower parts of the left and right ends of the photographing box (4) are provided with notches allowing the circuit boards to be transported; camera (5) and fixing base (51) all are equipped with a plurality ofly and one-to-one, fixing base (51) are fixed in the last inner wall of case (4) of shooing, camera (5) swing joint is in the lower extreme of fixing base (51).
8. The visual inspection mechanism for circuit boards as claimed in claim 7, wherein a tray (12) is fixed between the front and rear inner walls of the photographing box (4), the bottom of the tray (12) is attached to the upper surface of one of the transmission shafts (702), an inclined surface is arranged on one side of the tray (12) close to the fixing rod (14), a plurality of uniformly distributed mounting grooves (121) are formed in the upper end of the tray (12), a plurality of lamp beads (122) are fixedly mounted in the mounting grooves (121), and the plurality of lamp beads (122) are electrically connected with an external power supply.
9. The visual inspection mechanism for circuit board according to claim 8, wherein a plurality of uniformly distributed second reinforcing rods (301) are fixed between the adjacent ends of the two second supporting plates (3), and a plurality of uniformly distributed first reinforcing rods (201) are fixed between the adjacent ends of the two first supporting plates (2).
10. The detection method of the circuit board visual detection mechanism is characterized in that the circuit board visual detection mechanism of any one of claims 1 to 9 is used, and comprises the following steps:
s1: when the circuit board needs to be detected, the circuit board is firstly placed on a feeding table (141), firstly, an air cylinder (641) is started to drive a sucker (652) in a suction assembly to move downwards and contact with the upper surface of the circuit board, then, an air suction pump (65) is started, an air suction port of the air suction pump (65) vacuumizes the inside of the sucker (652) through a communicating pipe (651), so that the sucker (652) has suction force and can suck the circuit board, at the moment, the sucker (652) is driven to ascend through the air cylinder (641) again, at the moment, a sliding block (63) is driven to move leftwards through a screw nut driving assembly, the sliding block (63) drives the air cylinder (641) to move through a fixing plate (64), so that the air cylinder (641) drives the sucker (652) to move, and finally, the circuit board falls onto a conveyor belt (701) on the left side;
s2; at the moment, a second motor (13) is started, an output shaft of the second motor (13) drives a transmission shaft (702) fixed with the second motor to rotate, the transmission shaft (702) drives a spool (10) fixed with the transmission shaft to rotate, a belt (11) is in transmission connection with the circumferential surfaces of three spools (10), and a conveyor belt (701) is in transmission connection with the circumferential surfaces of two transmission shafts (702), so that the transmission shafts (702) respectively drive the conveyor belts (701) to transmit in the direction, and when a circuit board falls onto the conveyor belt (701) on the left side, the circuit board moves rightwards at the moment;
s3: when the circuit board passes through the tray (12), the circuit board is pushed to the upper side of the tray (12) through the conveyor belt (701), light emitted by the lamp beads (122) installed on the tray (12) penetrates through the circuit board, the circuit board is subjected to light transmission photographing by the camera (5), after photographing is finished, data are output to the control end through the camera (5) and compared with the stored data center, and after comparison is finished, the circuit board can be pushed slightly to enable the circuit board to fall onto the conveyor belt (701) for transmission;
s4: when the circuit board is positioned on the conveyor belt (701) on the left side, the grabbing mechanism (6) on the left side is started at the moment, so that the circuit board is adsorbed by the sucking disc (652) and is distinguished, qualified circuit boards are moved out to one side, and unqualified circuit boards are moved to the other side for distinguishing; finally, the circuit boards are conveyed to a collection mechanism through a conveyor belt (701), so that qualified circuit boards and unqualified circuit boards can be placed in a distinguishing mode.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
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| CN202110527308.1A CN113182212A (en) | 2021-05-14 | 2021-05-14 | Circuit board visual detection mechanism and detection method thereof |
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| Application Number | Priority Date | Filing Date | Title |
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| CN202110527308.1A CN113182212A (en) | 2021-05-14 | 2021-05-14 | Circuit board visual detection mechanism and detection method thereof |
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Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
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| CN113941512A (en) * | 2021-09-03 | 2022-01-18 | 句容协鑫集成科技有限公司 | Code printing testing device for comprehensive performance of solar cell |
| CN114235833A (en) * | 2021-12-14 | 2022-03-25 | 深圳仁海实业有限公司 | Detection equipment is transferred to high density interconnect printed circuit board's backplate |
| CN114985297A (en) * | 2021-09-16 | 2022-09-02 | 上海一航凯迈光机电设备有限公司 | Radar power supply module circuit board testing device and using method |
| CN116165143A (en) * | 2023-04-18 | 2023-05-26 | 深圳市南德谱光电有限公司 | Appearance defect detection device of polaroid |
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- 2021-05-14 CN CN202110527308.1A patent/CN113182212A/en active Pending
Cited By (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN113941512A (en) * | 2021-09-03 | 2022-01-18 | 句容协鑫集成科技有限公司 | Code printing testing device for comprehensive performance of solar cell |
| CN114985297A (en) * | 2021-09-16 | 2022-09-02 | 上海一航凯迈光机电设备有限公司 | Radar power supply module circuit board testing device and using method |
| CN114985297B (en) * | 2021-09-16 | 2024-01-23 | 上海一航凯迈光机电设备有限公司 | Radar power supply module circuit board testing device and application method |
| CN114235833A (en) * | 2021-12-14 | 2022-03-25 | 深圳仁海实业有限公司 | Detection equipment is transferred to high density interconnect printed circuit board's backplate |
| CN116511079A (en) * | 2023-04-16 | 2023-08-01 | 常州市武进华瑞电子有限公司 | Instrument panel upper cover locating hole detection device |
| CN116511079B (en) * | 2023-04-16 | 2024-01-30 | 常州市武进华瑞电子有限公司 | Instrument panel upper cover locating hole detection device |
| CN116165143A (en) * | 2023-04-18 | 2023-05-26 | 深圳市南德谱光电有限公司 | Appearance defect detection device of polaroid |
| CN116165143B (en) * | 2023-04-18 | 2023-09-15 | 深圳市南德谱光电有限公司 | Appearance defect detection device of polaroid |
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