CN207976417U - A kind of two-sided scanning mechanism of pcb board appearance detecting system - Google Patents
A kind of two-sided scanning mechanism of pcb board appearance detecting system Download PDFInfo
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- CN207976417U CN207976417U CN201721808190.5U CN201721808190U CN207976417U CN 207976417 U CN207976417 U CN 207976417U CN 201721808190 U CN201721808190 U CN 201721808190U CN 207976417 U CN207976417 U CN 207976417U
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Abstract
The utility model discloses a kind of two-sided scanning mechanisms of pcb board appearance detecting system, it is characterized in that, including scanning platform, illuminace component, camera and image processing and analyzing host, scanning platform drives pcb board horizontal movement, illuminace component is set to the top of running pcb board, camera is set to the top of running pcb board and obtains the image of pcb board, for image processing and analyzing host for being handled the image of pcb board and being obtained flaw location, the outlet side of scanning platform is additionally provided with crawl switching mechanism.The two-sided scanning mechanism of pcb board detecting system disclosed by the utility model, simplifies the structure of sweep mechanism itself, captures switching mechanism by setting, realizes duplex scanning.
Description
Technical field
The utility model is related to the inspection fields of pcb board, and in particular to a kind of duplex scanning of pcb board appearance detecting system
Mechanism.
Background technology
Pcb board is in printing process, due to various uncontrollable factors, it may appear that printing line segment is discontinuous or does not print success
The problem of, therefore, circuit board, can be to pcb board by optical check, desk checking and laser after being completed for printing
Detection automatically, label and grade separation is carried out to accomplish to make the best use of everything, in optical check according to different select
When, how to carry out double sided optical inspection is the technical issues of the application will solve.
Invention content
The purpose of this utility model is to provide a kind of two-sided scanning mechanism of pcb board appearance detecting system, simplifies scanning
The structure of mechanism itself captures switching mechanism by setting, realizes duplex scanning.
In order to achieve the above objectives, the technical solution adopted in the utility model is：A kind of pcb board appearance detecting system it is two-sided
Sweep mechanism, including scanning platform, illuminace component, camera and image processing and analyzing host, the scanning platform drive pcb board
Horizontal movement, the illuminace component are set to the top of running pcb board, and the camera is set to the top of running pcb board
And the image of pcb board is obtained, described image processing analysis host is for handling the image of pcb board and obtaining flaw position
It sets, the outlet side of the scanning platform is additionally provided with crawl switching mechanism, and the crawl switching mechanism includes crawl transfer rack, peace
Loaded on the horizontal transfer guide rail and two placement units in the crawl transfer rack, each placement unit includes configuration
In the horizontal horizontal transfer guide block transferred on guide rail, it is installed on the horizontal transfer guide rail and drives the level transfer
First crawl transfer driving equipment of guide block movement, is configured at the vertical transfer guide rail being installed on the horizontal transfer guide block
The vertical vertical transfer guide block transferred on guide rail is installed on the vertical transfer guide rail and the vertical transfer is driven to lead
Second crawl transfer driving equipment of block movement is installed on the vertical transfer guide block and is rotatably set around horizontal axis
The fixed plate set, be installed in the fixed plate and detect pcb board product sensor, the suction that is installed in the fixed plate
Disk, the vacuum generator being connected to the sucker, the high-speed flow source being connected to the vacuum generator and crawl transfer control
The input terminal of device processed, the crawl transfer controller connects the product sensor, the output end of the crawl transfer controller
Described first is connected, two crawl transfer driving equipments, wherein the sucker of described two placement units is set downward or relatively
It sets.
In above-mentioned technical proposal, the scanning platform includes belt conveyor, the belt conveyor along its conveying direction successively
It is set as feeding station, scanning station and discharge station, the illuminace component and the camera are set to the scanning station
Upside, is equipped with two baffles on the upside of the scanning station, the baffle opposite face it is arranged successively in the conveying direction for guiding surface,
Positioning is faced directly and guiding surface, and the distance between guiding surface described in two sides successively decreases and is much larger than gradually along conveying direction
The width of pcb board, it is identical simultaneously that the minimum range between guiding surface described in two sides the distance between is faced in positioning described in two sides directly
And slightly larger than the width of pcb board.
In above-mentioned technical proposal, two baffles have degree of freedom close to each other or being located remotely from each other movement.
In above-mentioned technical proposal, the scanning platform is additionally provided with the guiding axis extended in left-right direction, on the guiding axis
It movably is connected with guide sleeve, two baffles are relatively fixed with a guide sleeve respectively.
In above-mentioned technical proposal, the guide sleeve is the guide sleeve with self-locking.
In above-mentioned technical proposal, the scanning platform is also set to the support board on the belt conveyor, and the support board is set
There are vacuum absorption holes, the lower end of the vacuum absorption holes to be connect with the second vacuum generator.
In above-mentioned technical proposal, the product sensor is proximity sensor.
In above-mentioned technical proposal, the high-speed flow source passes through the valve A connections vacuum generator, the high-speed flow
Source is additionally provided with displacement sensor also by the valve B connections sucker in the fixed plate, the crawl transfer controller
Input terminal connects institute's displacement sensors, and the output end of the crawl transfer controller connects the valve A, B.
Since above-mentioned technical proposal is used, the utility model has following advantages compared with prior art：The utility model
The two-sided scanning mechanism of disclosed pcb board detecting system, simplifies the structure of sweep mechanism itself, and tipper is captured by setting
Structure realizes duplex scanning.
Description of the drawings
Fig. 1 is the composition schematic diagram of appearance detecting system disclosed by the utility model；
Fig. 2 is the composition schematic diagram of optical checking equipment disclosed by the utility model；
Fig. 3 is the structural schematic diagram of rack disclosed by the utility model；
Fig. 4 is the composition schematic diagram of laser beam marking equipment disclosed by the utility model；
Fig. 5 is the composition schematic diagram of cleaning equipment disclosed by the utility model；
Fig. 6 is the structural schematic diagram of material loading platform mechanism disclosed by the utility model；
Fig. 7 is the structural schematic diagram of feeding mounting table disclosed by the utility model；
Fig. 8 is the location diagram of material loading platform unit and rotary table disclosed by the utility model；
Fig. 9 is the structural schematic diagram that feeding disclosed by the utility model captures transfer mechanism；
Figure 10 is the connection relationship diagram in high-speed flow source and sucker disclosed by the utility model；
Figure 11 is the structural schematic diagram of fixed plate disclosed by the utility model；
The schematic diagram of Figure 12 sweep mechanisms disclosed by the utility model；
Figure 13 is the location diagram of belt conveyor disclosed by the utility model and baffle；
Figure 14 is the location diagram of belt conveyor disclosed by the utility model and support board；
The schematic diagram of Figure 15 laser mechanisms disclosed by the utility model；
Figure 16 is the location diagram of belt conveyor disclosed by the utility model and baffle；
Figure 17 is the location diagram of belt conveyor disclosed by the utility model and support board；
Figure 18 is the structural schematic diagram that blanking disclosed by the utility model captures transfer mechanism；
Figure 19 is the connection relationship diagram in high-speed flow source and sucker disclosed by the utility model；
Figure 20 is the structural schematic diagram of fixed plate disclosed by the utility model；
Figure 21 is the structural schematic diagram of platform of blanking mechanism disclosed by the utility model；
Figure 22 is the structural schematic diagram of blanking mounting table disclosed by the utility model (not including positioning plate)；
Figure 23 is the structural schematic diagram of blanking mounting table (including positioning plate) disclosed by the utility model；
Figure 24 is disclosed by the utility model first, the location diagram of two platform of blanking units and rotary table；
Figure 25 is the structural schematic diagram of high-pressure washing mechanism disclosed by the utility model；
Figure 26 is the structural schematic diagram of the roller of high-pressure washing mechanism disclosed by the utility model；
Figure 27 is the structural schematic diagram of water removal body disclosed by the utility model；
Figure 28 is the structural schematic diagram of the roller of water removal body disclosed by the utility model；
Figure 29 is the structural schematic diagram of water-absorption mechanism disclosed by the utility model；
Figure 30 is the structural schematic diagram of the roller of water-absorption mechanism disclosed by the utility model；
Figure 31 is the structural schematic diagram of drying mechanism disclosed by the utility model.
Specific implementation mode
The utility model is further described in conjunction with accompanying drawings and embodiments：
Referring to Fig. 1 to Fig. 5, as shown in legend therein, a kind of appearance detecting system of pcb board, including：
Optical checking equipment 11 comprising the first material loading platform mechanism 111, the first feeding crawl transfer mechanism 112, scanning
Mechanism 113, the first blanking crawl transfer mechanism 114 and the first platform of blanking mechanism 115, the first material loading platform mechanism 111 use
In placing pcb board, the first feeding crawl transfer mechanism 112 is used to capture pcb board from the first material loading platform mechanism 111 and be transferred to
On the scanning platform of sweep mechanism 113, the camera of sweep mechanism 113 is used to obtain pcb board image on its scanning platform and right
Pcb board image is handled and is analyzed to obtain flaw quantity and flaw location, and the first blanking captures transfer mechanism 114 and is used for certainly
The scanning platform crawl pcb board of sweep mechanism 113 is simultaneously transferred in the first platform of blanking mechanism 115, the first platform of blanking mechanism
115 for placing pcb board；
Desk checking platform 12 comprising workbench, the lighting mechanism on workbench and the rack for placing pcb board
121, rack 121 includes three placing grooves 122, and placing groove 122 includes side wall, bottom wall and end wall, and side wall and bottom wall are mutual
It intersects vertically, end wall is set to one end of side wall and bottom wall and intersects vertically with side wall and bottom wall, and side wall is in first with vertical plane
Acute angle, bottom wall are in third acute angle, first, two, three acute angles with vertical plane horizontal by the second acute angle, end wall
Angle is no more than 45 °；
Laser beam marking equipment 13 comprising the second material loading platform mechanism 131, the second feeding crawl transfer mechanism 132, radium
Penetrate mechanism 133, the second blanking crawl transfer mechanism 134 and the second platform of blanking mechanism 135, the second material loading platform mechanism 131
For placing pcb board, the second feeding crawl transfer mechanism 132 is used to capture pcb board from the second material loading platform mechanism 131 and transfer
To the radium-shine platform of laser mechanism 133, the laser head of laser mechanism 133 is used to carry out laser incising to the flaw location of pcb board
Print, the second blanking crawl transfer mechanism 134 are used to capture pcb board from the radium-shine platform of laser mechanism 133 and be transferred under second
Expect on platform mechanism 135, the second platform of blanking mechanism 135 is for placing pcb board；
Cleaning equipment 14 comprising the first squeegee washer structure 141, water removal body 142, the second pressure (hydraulic) water set gradually
Washing machine structure 143, the first hot water wash mechanism 144, third squeegee washer structure 145, the second hot water wash mechanism 146, pure water rinsing machine
Structure 147, water-absorption mechanism 148, the first dry body 149, the second dry body 1410 and drying mechanism 1411；
Wherein, optical checking equipment 11 and laser beam marking equipment 13 communicate.
The appearance detecting method of pcb board introduced below using above-mentioned appearance delection device, includes the following steps：
S1, pcb board are positioned in the first material loading platform mechanism 111, and the first feeding crawl transfer mechanism 112 grabs pcb board
It takes and is carried on the scanning platform of sweep mechanism 113, sweep mechanism 113 is scanned to pcb board and image processing and analyzing, obtains
One group of indefectible pcb board and one group are had the flaw by the flaw location and flaw quantity of pcb board, the first blanking crawl transfer mechanism 114
Defect pcb board captures respectively to be transferred to the first different platform of blanking mechanisms 113 and carries out classification blanking, into S2；
S2, above-mentioned one group of indefectible pcb board is carried on rack 21, above-mentioned one group indefectible product is carried out artificial
It examines, and determines the false drop rate of a collection of pcb board according to inspection result, it, then will be upper if false drop rate is more than false drop rate setting value
The material loading platform mechanism 111 that a collection of pcb board puts back to optical checking equipment 11 is stated, S1 is returned to, as false drop rate is set no more than false drop rate
Definite value then enters S3；
S3, flaw pcb board is positioned in the second material loading platform mechanism 131 by above-mentioned one group, the crawl transfer of the second feeding
By on the scanning platform of pcb board grasp handling to laser mechanism 133, laser mechanism 133 carries out radium-shine mark to pcb board for mechanism 132
Above-mentioned one group is had flaw pcb board to capture respectively to be transferred to difference by note, the second blanking crawl transfer mechanism 134 according to flaw quantity
The second platform of blanking mechanism 135 carry out classification blanking；
S4, flaw product cleans by the way that cleaning equipment 14 is above-mentioned to each grade successively；
S5, above-mentioned a collection of pcb board is manually inspected by random samples, and determines the flase drop of above-mentioned a batch PCB plates according to Examined
Above-mentioned a collection of pcb board is then put back to the material loading platform mechanism 111 of the optical checking equipment by rate if false drop rate is greater than the set value,
Return to S1.
Referring to Fig. 6 to Fig. 8, as shown in legend therein, the first material loading platform mechanism 111 and the second material loading platform mechanism
131 be identical structure, including material loading platform unit 20, which includes feed frame 21, is installed on feeding
Riser guide in rack 21, the lifting guide block being configured on riser guide, the feeding mounting table 22 being installed on lifting guide block,
It is installed on feed frame 21 and drives feeding driving equipment 23 that the feeding mounting table 22 moves along the vertical direction, be installed on
On feed frame 21 and positioned at PCB plates crawl position side fibre optical sensor 24, be installed on feed frame 21 and
Positioned at the crawl position other side of pcb board light source 25, be installed on feeding mounting table 22 and incude on feeding mounting table 22
Pcb board pressure sensor 26 and feeding controller, feeding controller input terminal connection fibre optical sensor 24 and pressure
Force snesor 26, the output end connection feeding driving equipment 23 of the feeding controller.
Fibre optical sensor 24 detects light source 25, such as detects, then explanation waits for that feeding crawl position does not have PCB plates, then feeding
Controller sends out control instruction control feeding driving equipment 23 and feeding mounting table 22 is driven to rise, and fibre optical sensor 24 continues to detect
Light source 25, such as can't detect, and illustrate to wait for that there is pcb board in feeding crawl position, then feeding controller does not send out control instruction, and pressure passes
Sensor 26 detects the pressure sensed, such as detects, illustrates there is pcb board on feeding mounting table 22, feeding controller is according to optical fiber
The testing result of sensor 24 is controlled, and such as can't detect, then illustrates do not have pcb board on feeding mounting table 22, feeding control
Device sends out control instruction control feeding driving equipment 23 and feeding mounting table 22 is driven to decline, and is placed on feeding mounting table 22 again
Pcb board.
Feeding mounting table 22 includes fixed part 221 and floating part 222, and floating part 222 is connected by elastomeric element
In fixed part 221, pcb board is positioned over floating part 222.
When the upper and lower position slightly error of pcb board, since feeding mounting table 22 is floating structure, error benefit may be implemented
It repays.
The surrounding of feeding mounting table 22 is additionally provided with positioning plate 23, and the positioning plate 23 is movably connected in the horizontal direction
On the table top of feeding mounting table 22, under the return action power of elastomeric element, platform of the positioning plate 23 to asymptotic feeding mounting table 22
The movement of face center position, under external force, positioning plate 23 overcome the recovery force effect of elastomeric element to gradually remote feeding mounting table
22 table top center position movement.
By flexibly positioned, mutually sliding is fallen between preventing multi-layer PCB board, and can realize determining for more size PCB plates
Position.
The one side at positioning plate 23 towards the table top center of feeding mounting table 22 is inclined-plane 231, inclined-plane 231 and feeding mounting table
The vertical range of 22 table top central axis is incremented by successively from bottom to top.
It is acted on by pcb board self- steering before feeding by the way that inclined-plane 231 is arranged, it can be more effortless to feeding mounting table
22 are put into pcb board.
Feeding driving equipment 23 is servo motor or servo cylinder.
Two material loading platform units 20 are circumferentially uniformly arranged on rotary table.When one of material loading platform unit
After the completion of pcb board feeding on 20, by Switch of working position, the material loading platform unit 20 that another is installed to pcb board is transferred to and waits for
Feeding crawl position.
The rotary table top 20a and driving rotary table top that rotary table includes pedestal, is rotatablely connected on pedestal
The rotational driving device of 20a rotations, the output end of feeding controller are also connected with rotational driving device.
Referring to Fig. 9 to Figure 11, as shown in legend therein, the first feeding captures transfer mechanism 112 and the crawl of the second feeding
Transfer mechanism 132 is identical structure, including the horizontal transfer guide rail that crawl is transferred rack 31, is installed on crawl drag-over unit 31
32, the level being configured on horizontal transfer guide rail 32 transfers guide block, is installed on horizontal transfer guide rail 32 and driving level is transferred
The first feeding crawl transfer driving equipment 33 of guide block movement, is matched at the vertical transfer guide rail 34 being installed on horizontal transfer guide block
It is placed in the vertical vertical transfer guide block transferred on guide rail 34, is installed on vertical transfer guide rail 34 and vertical guide block of transferring is driven to move
Dynamic the second feeding crawl transfers driving equipment 35, the fixed plate 36 being installed on vertical transfer guide block, is installed on fixed plate 36
Above and detect the product sensor 37 of pcb board, the sucker 38 being installed in fixed plate 36, the vacuum being connected to sucker 38 generation
Device 39, the high-speed flow source 310 being connected to vacuum generator 39 and crawl transfer controller, the input of crawl transfer controller
End connection product sensor 37, the output end connection first of crawl transfer controller, two crawl transfer driving equipments 33,35.
First feeding crawl transfer driving equipment 33 drives fixed plate in material loading platform mechanism and sweep mechanism or laser machine
It is moved between structure, the second feeding crawl transfer driving equipment 35 drives fixed plate close downwards or is upwardly away from feeding mounting table
22, scanning platform and radium-shine platform, product sensor 37 detect pcb board, such as detect, then illustrate to capture successfully, transfer control
Device processed controls the first feeding crawl transfer driving equipment 33 and fixed plate is driven to carry out transfer movement, is such as not detected, then illustrates to inhale
Disk 38 capture it is unsuccessful, transfer controller control the second feeding crawl transfer driving equipment 35 and sucker 38 act again successively,
Again pcb board is captured.
Product sensor 37 is proximity sensor.
By valve A311 connections vacuum generator 39, high-speed flow source 310 also passes through valve B312 in high-speed flow source 310
Connecting sucker 38, displacement sensor 313 is additionally provided in fixed plate 36, and the input terminal of crawl transfer controller connects displacement sensing
Device 313, output end the connecting valve A, B311,312 of crawl transfer controller.Valve A311 is opened so that sucker 37 generates very
Suction takes pcb board, valve B313 to open so that sucker 37 generates positive pressure and blows off pcb board.
Valve A, B311,312 are integrated into a three-way valve.
38 rectangular array of multiple suckers is set in fixed plate 36.
Fixed plate 36 includes fixed part 361 and floating part 362, and floating part 362 is connected to solid by elastomeric element
Determine part 361, sucker 38 is fixed on floating part 362.
When the upper and lower position slightly error of pcb board, since fixed plate 36 is floating structure, error compensation may be implemented.
Referring to Figure 12 to Figure 14, as shown in legend therein, sweep mechanism 113 includes scanning platform 113a, illuminace component
113b, camera 113c and image processing and analyzing host, scanning platform 113a drive pcb board horizontal movement, illuminace component 113b
Set on the top of running pcb board, camera 113c is set to the top of running pcb board and obtains the image of pcb board, image
For processing analysis host for being handled the image of pcb board and being obtained flaw location, scanning platform 113a includes belt conveyor,
Belt conveyor 113a is set gradually along its conveying direction as feeding station, scanning station and discharge station, illuminace component 113b
It is set to the upside of scanning station with camera 113c, is equipped with two baffle 113d on the upside of scanning station, baffle 113d opposite faces are along defeated
It send direction to set gradually and faces 113f and the second guiding surface 113g directly for the first guiding surface 113e, positioning, two sides first is led
To the distance between inclined-plane 113e along it is asymptotic position face directly 113f direction successively decrease gradually and much larger than pcb board width, two
The distance between face the second guiding surface 113g successively decreases along the direction that 113f is faced in asymptotic positioning directly and gradually much larger than pcb board
The distance between 113f and two sides first are faced in width, two sides positioning directly, and the minimum range between two guiding surfaces is identical and omits
More than the width of pcb board.
Baffle 113d can be oriented to the pcb board of positive supplied materials and reversed supplied materials first, then be positioned so that
The image that sweep mechanism obtains is normal place image, reduces scanning error.
Two baffle 113d have degree of freedom close to each other or being located remotely from each other movement.It can be adapted for different in width
Pcb board.
Scanning platform 113a is additionally provided with the guiding axis extended in left-right direction, and guide sleeve is movably connected on guiding axis,
Two baffle 113d are relatively fixed with a guide sleeve respectively, and guide sleeve is the guide sleeve with self-locking.
Scanning platform 113a is also set to the support board 113h on the belt conveyor, and support board 113h is equipped with vacuum suction
Hole, the lower end of the vacuum absorption holes are connect with the second vacuum generator.Pcb board is placed into scanning by feeding crawl transfer mechanism
It on platform, is positioned over first on support board 113h, passes through vacuum suction so that pcb board will not be inclined when being transferred on scanning platform
Pan position.
Referring to Figure 15 to Figure 17, laser mechanism 133 includes radium-shine platform 133a and laser head 133b, radium-shine platform 133a bands
Dynamic pcb board horizontal movement, laser head 133b are set to the top of running pcb board and are carried out to the flaw location of pcb board radium-shine
Label, radium-shine platform 133a includes belt conveyor, and belt conveyor 133a is set gradually along its conveying direction as feeding station, radium
Station and discharge station are penetrated, laser head 133b is set to the upside of radium-shine station, two baffle 133d is equipped on the upside of radium-shine station,
It is the first guiding surface 133e that baffle 133d opposite faces are arranged successively in the conveying direction, positioning is faced 133f and second directly and is oriented to tiltedly
Face 133g, the distance between two sides the first guiding surface 133e face the direction of 133f directly and successively decrease gradually and long-range along asymptotic position
In the width of pcb board, the distance between two sides the second guiding surface 133g successively decreases gradually along the direction that 133f is faced in asymptotic positioning directly
And much larger than the width of pcb board, two sides, which positions, faces the distance between 133f and two sides first directly, between two guiding surfaces most
Small distance is identical and is slightly larger than the width of pcb board.
Baffle 133d can be oriented to the pcb board of positive supplied materials or reversed supplied materials first, then be positioned so that
The image that laser mechanism obtains is normal place image, reduces radium-shine error.
Two baffle 133d have degree of freedom close to each other or being located remotely from each other movement.It can be adapted for different in width
Pcb board.
Radium-shine platform 133a is additionally provided with the guiding axis extended in left-right direction, and guide sleeve is movably connected on guiding axis,
Two baffle 133d are relatively fixed with a guide sleeve respectively, and guide sleeve is the guide sleeve with self-locking.
Radium-shine platform 133a is also set to the support board 133h on the belt conveyor, and support board 133h is equipped with vacuum suction
Hole, the lower end of the vacuum absorption holes are connect with the second vacuum generator.Pcb board is placed into radium-shine by feeding crawl transfer mechanism
It on platform, is positioned over first on support board 133h, passes through vacuum suction so that pcb board will not be inclined when being transferred on radium-shine platform
Pan position.
Laser head 133b includes laser generator, laser beam transfer passage and mirror assembly, the laser beam conveying
The entrance in channel is connected to the emission port of the laser emitter, and the mirror assembly is arranged in the laser beam transfer passage
Exit, the mirror assembly include the multiple speculums being rotatably arranged, and the multiple speculum can be mutually reflected sharp
Light beam, in the multiple speculum, the emission port of laser generator described in the input path face of one of speculum, wherein
Pcb board described in the reflected light path face of one speculum.
Referring to Figure 18 to Figure 20, above-mentioned first blanking crawl transfer mechanism 114 and the second blanking crawl transfer mechanism 134 are
Same structure, including crawl transfer rack 41, the horizontal transfer guide rail 42 that is installed in crawl transfer rack 41 and two grab
Take unit, each placement unit, which includes the horizontal transfer guide block being configured on horizontal transfer guide rail 42, is installed on horizontal transfer leads
On rail and the first crawl transfer driving equipment 43 of driving level transfer guide block movement, be installed on it is vertical on horizontal transfer guide block
Transfer guide rail 44, is installed on vertical transfer guide rail 44 and drives the vertical transfer guide block being configured on vertical transfer guide rail 44
Second crawl of vertical transfer guide block movement is transferred driving equipment 45, is installed on vertical transfer guide block and can around horizontal axis
The fixed plate 46 of the setting of rotation, is installed on fixation at the product sensor 47 for being installed in fixed plate 46 and detecting pcb board
Sucker 48 on plate 47, the vacuum generator 49 being connected to sucker 48, the high-speed flow source 410 being connected to vacuum generator 49 with
And crawl transfer controller, the input terminal connection product sensor 47 of crawl transfer controller, the output of crawl transfer controller
End connection first, two crawl transfer driving equipments 43,45, wherein the sucker of two placement units downward or is oppositely arranged.
One Surface scan or radium-shine good pcb board are scanned platform or radium-shine platform is transferred to blanking crawl position, wherein one
It is overturn after a placement unit crawl pcb board, is overturn after another placement unit crawl pcb board, realize the overturning of pcb board, will turn over
Pcb board is placed on scanning platform or radium-shine platform after turning, and scanning platform and radium-shine platform reversely convey, to the another of pcb board
Face is scanned or radium-shine, and two sides is scanned or radium-shine good pcb board is scanned platform or radium-shine platform is transferred to blanking crawl
Position is transferred to platform of blanking mechanism, the first blanking crawl transfer after the placement unit crawl pcb board of platform of blanking mechanism
Driving equipment 43 drives fixed plate to be moved between platform of blanking mechanism and sweep mechanism or laser mechanism, and the second blanking crawl moves
Driving equipment 45 is sent to drive fixed plate close downwards or be upwardly away from blanking mounting table, scanning platform and radium-shine platform.
Product sensor 47 is proximity sensor.
By valve A411 connections vacuum generator 49, high-speed flow source 410 also passes through valve B412 in high-speed flow source 410
Connecting sucker 48, displacement sensor 413 is additionally provided in fixed plate 46, and the input terminal of crawl transfer controller connects displacement sensing
Device 413, output end the connecting valve A, B411,412 of crawl transfer controller.
Valve A411 is opened so that sucker 47 generates vacsorb pcb board, and valve B413 is opened so that sucker 47 generates
Positive pressure blows off pcb board.
Valve A, B411,412 are integrated into a three-way valve.
48 rectangular array of multiple suckers is set in fixed plate 46.
Fixed plate 46 includes fixed part 461 and floating part 462, and floating part 462 is connected to solid by elastomeric element
Determine part 461, sucker 48 is fixed on floating part 462.
When the upper and lower position slightly error of pcb board, since fixed plate 36 is floating structure, error compensation may be implemented.
Referring to Figure 21 to Figure 24, as shown in legend therein, the first platform of blanking mechanism 115 and the second platform of blanking mechanism
135 be identical structure, including the first platform of blanking unit 50a and the second platform of blanking unit 50b, above-mentioned first, two blankings
Platform unit is identical structure, including blanking rack 51, be installed in blanking rack 51 riser guide, be configured at lifting and lead
Lifting guide block on rail, the blanking mounting table 52 being installed on lifting guide block, be installed in blanking rack 51 and drive it is described under
Blanking driving equipment 53 that material mounting table 52 moves along the vertical direction is installed in blanking rack 51 and being grabbed positioned at pcb board
Fetch bit is set the fibre optical sensor 54 of side, is installed in blanking rack 51 and positioned at the light of the crawl position other side of pcb board
Source 55, the pressure sensor 56 for being installed on blanking mounting table 52 and incuding the pcb board on blanking mounting table 52 and blanking
Controller, the input terminal connection fibre optical sensor 54 and pressure sensor 56 of discharge controller, the output of the discharge controller
End connection blanking driving equipment 54.
Fibre optical sensor 54 detects light source 55, such as can't detect, illustrates to wait for that lower discharge position has pcb board, then discharge controller
Sending out control instruction control blanking driving equipment 53 drives blanking mounting table 52 to decline, and fibre optical sensor 54 continues to detect light source
55, it such as detects, illustrates to wait for that lower discharge position does not have pcb board, then discharge controller does not send out control instruction, pressure sensor
The pressure that 56 detections sense, such as can't detect, then illustrates do not have pcb board on blanking mounting table 52, discharge controller is according to light
The testing result control blanking driving equipment 53 of fiber sensor 54, the pressure such as detected reaches threshold value, then illustrates that blanking is placed
It is already filled with pcb board on platform 52, needs to remove pcb board, then discharge controller controls blanking driving equipment 53 and blanking is driven to put
It sets platform 52 and rises to and wait for lower discharge position.
Blanking mounting table 52 includes fixed part 521 and floating part 522, and floating part 522 is connected by elastomeric element
In fixed part 521, pcb board is positioned over floating part 522.When the upper and lower position slightly error of pcb board, since blanking is placed
Platform 52 is floating structure, and error compensation may be implemented.
The surrounding of blanking mounting table 52 is additionally provided with positioning plate 53, and the positioning plate 53 is movably connected in the horizontal direction
On the table top of blanking mounting table 52, under the return action power of elastomeric element, platform of the positioning plate 53 to asymptotic blanking mounting table 52
The movement of face center position, under external force, positioning plate 53 overcome the recovery force effect of elastomeric element to gradually remote blanking mounting table
52 table top center position movement.
Mutually sliding is fallen between preventing multi-layer PCB board.
The one side at positioning plate 53 towards the table top center of blanking mounting table 52 is inclined-plane 531, inclined-plane 531 and blanking mounting table
The vertical range of 52 table top central axis is incremented by successively from bottom to top.
By be arranged inclined-plane 231, pcb board by self- steering effect can be more effortless be put between positioning plate 23.
Blanking driving equipment 53 is servo motor or servo cylinder.
First platform of blanking unit 50a is set as two, and two the second platform of blanking unit 50b are set as two, two
First platform of blanking unit 50a and two the second platform of blanking unit 50b are circumferentially spaced is set on rotary table.
First platform of blanking unit 50a and the second platform of blanking unit 50b is used to place the different pcb board of credit rating,
After filling pcb board on one of them first platform of blanking unit 50a, by Switch of working position, by another first
Platform of blanking unit 50a, which is transferred to, waits for lower discharge position.After filling pcb board on one of them second platform of blanking unit 50b,
By Switch of working position, another the second platform of blanking unit 50b is transferred to and waits for lower discharge position.
The rotary table top 50c and driving rotary table top that rotary table includes pedestal, is rotatablely connected on pedestal
The rotational driving device of 50c rotations, the output end of discharge controller are also connected with rotational driving device.
Referring to Figure 25, Figure 26, as shown in legend therein, above-mentioned first, two, three squeegee washer structures 141,143,145
For identical structure, including holding groove 61, by 61 top of holding groove and transfers the conveying device of pcb board and be installed on transfer
In pcb board above upper pressurized spray head 62 and be installed on transfer in pcb board below lower pressurized spray head, conveying dress
It sets and lower pressurized spray head shares the same part, including roller 631, the cavity 632 inside roller 631, connection cavity 632
To the inlet opening 633 of 631 end face of roller, the water source that is connected to inlet opening 633 and connection cavity 632 to 631 sub- side of roller
Several hole for water sprayings 634.
Upper pressurized spray head 62 is used for carrying out pressurization washing above pcb board, and roller 631 is for conveying PCB plates and right
Pressurization washing is carried out below pcb board, to can be achieved to clean without dead angle below pcb board.
Inlet opening 633 is equipped with rotary joint.Prevent inlet pipeline rotation from breaking.
It is connected by water pump between inlet opening 633 and water source.
Upper pressurized spray head 632 is around the conveying direction rotary setting perpendicular to conveying device.Realize uniformly cleaning
The conveying speed of conveying device is 25 ms/min, it is described on, the hydraulic pressure of lower pressurized spray head is 2-6Mpa.
Holding groove 61 includes two pieces of partition boards 612 of two sidings 611 and standing opposite setting of standing opposite setting, every
The height of plate 612 is less than 611 height of siding, and conveying device is by above partition board, holding groove 61 is also configured with cover board 613, cover board
613 are set to above conveying device and are connected on two sidings 611, and the upper pressurized spray head 62 is installed on cover board 613.
Holding groove 61 passes through filter element and pumping part and upper, the inlet opening connection of lower pressurized spray head.
Referring to Figure 27 and Figure 28, as shown in legend therein, water removal body 142 includes holding groove 71, by holding groove 71
Top and transfer pcb board conveying device and be installed on transfer in pcb board above upper water removal air knife 72 and be installed on
Lower water removal air knife below pcb board in transfer, conveying device and lower water removal air knife share the same part, including roller 731, set
The air admission hole 733 of cavity 732, connection cavity 732 to roller end surface inside roller 731, the gas being connected to air admission hole 733
Source and connection cavity 732 to 731 side of roller several fumaroles 734.
Upper water removal air knife 72 is used for being removed water above pcb board, and roller 731 is for conveying pcb board and under pcb board
Face is removed water, to can be achieved to remove water without dead angle below pcb board.
Air admission hole 733 is equipped with rotary joint.Prevent air inlet pipeline rotation from breaking.
Above-mentioned air source is compressed gas source.
The conveying speed of conveying device is 25 ms/min.
Holding groove 71 includes two pieces of partition boards 712 of two sidings 711 and standing opposite setting of standing opposite setting, every
The height of plate 712 is also configured with cover board 713, cover board less than 711 height of siding, conveying device by 712 top of partition board, holding groove
713 are set to above conveying device and are connected on two sidings 711, and upper water removal air knife 72 is installed on cover board 713.
Referring to Figure 29 and Figure 30, as shown in legend therein, above-mentioned water-absorption mechanism 148 includes holding groove 81, by accepting
Above slot and transfer upper absorbent material layer 82 and peace above the conveying device of pcb board and the pcb board being installed in transfer
Loaded on the lower absorbent material layer 83 below the pcb board in transfer, conveying device includes upper passive roller 84 and lower active roller 85,
Upper absorbent material layer 82 is coated on 84 outside of passive roller, and lower absorbent material layer 83 is coated on 85 outside of lower active roller.
Upper passive roller 84 and the lower active roller 85 are same structure comprising roller 861 is set in roller 861
The cavity 862 in portion, the aspirating hole 863 of connection cavity 862 to roller end surface, the suction pump and connection being connected to aspirating hole 863
Cavity 862 to roller side several suction holes 864.
By upper, lower absorbent material layer 83,83 absorbs water, and roller 861 conveys pcb board, while to upper, lower absorbent material layer into
Sector-style is dry so that on, lower absorbent material layer keeps drying.
The conveying speed of conveying device is 25 ms/min.
Holding groove 81 includes two pieces of partition boards 812 of two sidings 811 and standing opposite setting of standing opposite setting, every
The height of plate 812 is also configured with cover board 813 less than 811 height of siding, conveying device by 812 top of partition board, holding groove 81,
Cover board 813 is set to above conveying device and is connected on two sidings 811.
On, lower absorbent material layer 82,83 is spongy layer.
Referring to Figure 31, as shown in legend therein, the drying mechanism 1411 includes holding groove 91, by holding groove 91
Side and transfer pcb board conveying device 92 and be installed on transfer in pcb board above upper drying component and be installed on shifting
Lower drying component below the pcb board sent, 91 notch of holding groove are equipped with cover board 913 to form confined space, and confined space is set
There are inlet port and outlet port, conveying device 92 to pass through feed inlet, confined space and discharge port, upper drying component and lower baking successively
Dry part forms drying unit 93, and drying unit 93 is set in the confined space, in the shape of a spiral, the conveying of conveying device 92
Direction with the helical axis of drying unit 93 as identical, and conveying device 92 pass through drying unit 93 spring coil.
Drying unit 93 is arranged around pcb board, realizes the comprehensive drying of pcb board.
Drying unit 93 is electric heater unit or hot oil heater.
The conveying speed of conveying device 92 is 25 ms/min.
Holding groove 91 includes two pieces of partition boards 912 of two sidings 911 and standing opposite setting of standing opposite setting, every
Less than 911 height of siding, cover board 913 is set to 92 top of conveying device and is connected on two sidings 911 height of plate 912, defeated
Send device 92 by between cover board 913 and partition board 912.
The appearance detecting method of pcb board introduced below using above-mentioned appearance delection device, includes the following steps：
S1, flaw is obtained to printed patterns progress capture, processing, the analysis of a collection of pcb board by optical checking equipment 11
Quantity and flaw location, a collection of pcb board, which is then divided into one group of indefectible product and one group, flaw product, into S2；
S2, desk checking is carried out to described one group indefectible product, and a collection of pcb board is determined according to inspection result
False drop rate a collection of pcb board is then put back to the feeding of the optical checking equipment if false drop rate is more than false drop rate setting value
Platform mechanism returns to S1, if false drop rate is not more than false drop rate setting value, then enters S3；
S3, the flaw location of flaw product carries out flaw label by described one group by laser beam marking equipment 13, then
Having flaw product to be divided into multiple grades by described one group has flaw product；
S4, by cleaning equipment 14 successively to thering is flaw product to clean described in each grade；
S5, a collection of pcb board is manually inspected by random samples, and determines the flase drop of a batch PCB plates according to Examined
The a collection of pcb board is then put back to the material loading platform mechanism of the optical checking equipment, returned by rate if false drop rate is greater than the set value
To S1.
In S2, the false drop rate setting value is 10%.
In S3, the multiple grade, which has flaw product to include the first estate, has flaw product, the second grade to have flaw product
And the tertiary gradient has flaw product, described the first estate to have the flaw quantity of flaw product to be less than or equal to 2, second grade
There is the flaw quantity heavy rain of flaw product and less than or equal to 5, the tertiary gradient has the flaw quantity of flaw product to be more than 5 simultaneously
And it is less than or equal to 10.
S4 includes the following steps carried out successively：Pressurization washing for the first time, water removal, second of pressurization washing, for the first time heat
It washes, pressurization washing for the third time, second of hot water wash, pure water rinsing, blot, drying for the first time, for the second time drying and drying；
Wherein, described first, two, the hydraulic pressure of washing of pressurizeing three times is 2-6Mpa, described first, the water temperature of second heat washing is 40-60
℃。
Described first, two, the hydraulic pressure for washing of pressurizeing three times is 3-5Mpa.
Described first, the water temperature of second heat washing is 45-55 DEG C.
The step is carried out while the pcb board at the uniform velocity moves.
The movement speed of the pcb board is 25 ms/min.
The foregoing description of the disclosed embodiments enables professional and technical personnel in the field to realize or use this practicality new
Type.Various modifications to these embodiments will be apparent to those skilled in the art, and determine herein
The General Principle of justice can be realized in other embodiments without departing from the spirit or scope of the present utility model.Cause
This, the utility model is not intended to be limited to the embodiments shown herein, and is to fit to and principles disclosed herein
The widest range consistent with features of novelty.
Claims (8)
1. a kind of two-sided scanning mechanism of pcb board appearance detecting system, which is characterized in that including scanning platform, illuminace component, phase
Machine and image processing and analyzing host, the scanning platform drive pcb board horizontal movement, the illuminace component to be set to running
The top of pcb board, the camera are set to the top of running pcb board and obtain the image of pcb board, described image processing analysis
For being handled the image of pcb board and being obtained flaw location, the outlet side of the scanning platform is additionally provided with crawl and turns over host
Rotation mechanism, the crawl switching mechanism includes crawl transfer rack, the horizontal transfer that is installed in the crawl transfer rack is led
Rail and two placement units, each placement unit include that the horizontal transfer being configured on the horizontal transfer guide rail is led
Block, the first crawl transfer driving equipment for being installed on the horizontal transfer guide rail and driving the horizontal transfer guide block movement,
The vertical transfer guide rail being installed on the horizontal transfer guide block, the vertical transfer being configured on the vertical transfer guide rail are led
Block, be installed on it is described it is vertical transfer guide rail on and drive it is described it is vertical transfer guide block movement second crawl transfer driving equipment,
Be installed on the vertical transfer guide block and around the fixed plate that horizontal axis is rotatably arranged, be installed in the fixed plate
And the product sensor for detecting pcb board, the sucker being installed in the fixed plate, the vacuum being connected to the sucker occur
The defeated of controller is transferred in device, the high-speed flow source being connected to the vacuum generator and crawl transfer controller, the crawl
Enter end and connects the product sensor, the output end connection described first of the crawl transfer controller, two crawl transfer drivings
Equipment, wherein the sucker of described two placement units downward or is oppositely arranged.
2. the two-sided scanning mechanism of pcb board appearance detecting system according to claim 1, which is characterized in that the scanning
Platform includes belt conveyor, and the belt conveyor is set gradually along its conveying direction as feeding station, scanning station and blanking
Station, the illuminace component and the camera are set to the upside of the scanning station, and two gears are equipped on the upside of the scanning station
Plate, it is guiding surface that the baffle opposite face is arranged successively in the conveying direction, positioning is faced directly and guiding surface, is led described in two sides
Successively decrease and be much larger than the width of pcb board gradually along conveying direction to the distance between inclined-plane, is positioned described in two sides between facing directly
Distance and guiding surface described in two sides between minimum range it is identical and slightly larger than pcb board width.
3. the two-sided scanning mechanism of pcb board appearance detecting system according to claim 2, which is characterized in that described two
Baffle has degree of freedom close to each other or being located remotely from each other movement.
4. the two-sided scanning mechanism of pcb board appearance detecting system according to claim 3, which is characterized in that the scanning
Platform is additionally provided with the guiding axis extended in left-right direction, and guide sleeve, two baffles are movably connected on the guiding axis
It is relatively fixed respectively with a guide sleeve.
5. the two-sided scanning mechanism of pcb board appearance detecting system according to claim 4, which is characterized in that the guide sleeve
For the guide sleeve with self-locking.
6. the two-sided scanning mechanism of pcb board appearance detecting system according to claim 2, which is characterized in that the scanning
Platform is also set to the support board on the belt conveyor, and the support board is equipped with vacuum absorption holes, under the vacuum absorption holes
End is connect with the second vacuum generator.
7. the two-sided scanning mechanism of pcb board appearance detecting system according to claim 1, which is characterized in that the product
Sensor is proximity sensor.
8. the two-sided scanning mechanism of pcb board appearance detecting system according to claim 1, which is characterized in that the high speed
For air flow source by the valve A connections vacuum generator, the high-speed flow source is described also by the valve B connections sucker
Displacement sensor is additionally provided in fixed plate, the input terminal connection institute displacement sensors of the crawl transfer controller are described
The output end of crawl transfer controller connects the valve A, B.
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| Application Number | Priority Date | Filing Date | Title |
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| CN201721808190.5U CN207976417U (en) | 2017-12-22 | 2017-12-22 | A kind of two-sided scanning mechanism of pcb board appearance detecting system |
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| CN201721808190.5U CN207976417U (en) | 2017-12-22 | 2017-12-22 | A kind of two-sided scanning mechanism of pcb board appearance detecting system |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110470349A (en) * | 2019-09-20 | 2019-11-19 | 深圳市鑫荣精工科技有限公司 | A kind of precision CNC converted products quality determining method |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110470349A (en) * | 2019-09-20 | 2019-11-19 | 深圳市鑫荣精工科技有限公司 | A kind of precision CNC converted products quality determining method |
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