CN114199894A

CN114199894A - AOI detection device for PCB welding spot detection

Info

Publication number: CN114199894A
Application number: CN202111507198.9A
Authority: CN
Inventors: 李祥; 易中群
Original assignee: Shenzhen Ektion Technology Co ltd
Current assignee: Shenzhen Ektion Technology Co ltd
Priority date: 2021-12-10
Filing date: 2021-12-10
Publication date: 2022-03-18

Abstract

The invention belongs to the technical field of detection devices, and discloses an AOI detection device for detecting welding spots of a PCB (printed circuit board), which comprises a case, wherein an operation table is fixedly installed at the top of the case, a support frame is fixedly installed at the rear end of the top of the operation table, a sliding frame is movably installed at the top of the support frame, a mounting frame is fixedly installed at the top of the sliding frame, and a detector and an optical sensor are movably installed on the front surface of the mounting frame. According to the invention, the positions of the sliding frame, the mounting frame, the detector and the threaded sleeve can be respectively adjusted through the sliding frame, the mounting frame, the limiting groove and the positioning groove, the effect of adjusting the position of the optical sensor can be achieved, and the positions of the sliding frame, the detector and the threaded sleeve can be respectively fixed under the matching of the locking rod, the locking sleeve, the connecting shaft and the fixing plate, so that the effects of being suitable for detecting and positioning workpieces with different sizes are achieved.

Description

AOI detection device for PCB welding spot detection

Technical Field

The invention belongs to the technical field of detection devices, and particularly relates to an AOI detection device for detecting welding spots of a PCB.

Background

AOI detection equipment, also known as AOI optical automatic detection equipment, is an important detection tool and a process quality control tool for ensuring the product quality in the electronic manufacturing industry; therefore, how to select and use AOI optical automatic detection equipment suitable for the requirements of the AOI optical automatic detection equipment from a plurality of AOI brands becomes a great concern for vast electronic manufacturing workers.

At present, AOI automatic detection device's use is increasingly extensive, and although current AOI detection device also can reach daily detection's function, nevertheless because it adopts the mode of bolt to install fixedly, though the installation is very stable like this, it has also restricted the application range of check out test set, and then leads to equipment to be difficult to make the adjustment according to the size and the shape of actual detection work piece to be applicable to and carry out continuity detection to the work piece of different sizes, thereby reduce the practicality of equipment, also can bring the inconvenience for detecting simultaneously.

Moreover, because AOI detection device mostly all need detect batch product work piece in the laboratory, and then just need wait to detect each and detect the work piece and carry out material loading and accurate location to detection device measures accurate testing result, and because current check out test set is difficult to carry out automatic accurate location according to the interval between the different work pieces, thereby also bring inconvenience for detecting, can lead to detection efficiency to reduce simultaneously.

Meanwhile, the detection equipment needs to detect batch workpieces, so that the purpose of efficient processing is achieved, the purpose of detection is not only that unqualified products need to be detected, but also that unqualified products are rejected, and the existing detection equipment does not have the function of automatically rejecting unqualified products according to a detection structure while detecting, so that improvement is needed.

Disclosure of Invention

The invention aims to provide an AOI detection device for detecting welding spots of a PCB (printed circuit board), so as to solve the problems in the background technology.

In order to achieve the above purpose, the invention provides the following technical scheme: the utility model provides a PCB board solder joint detects AOI detection device who uses, includes quick-witted case, the top fixed mounting of machine case has the operation panel, the rear end fixed mounting at operation panel top has the support frame, the top movable mounting of support frame has the balladeur train, the top fixed mounting of balladeur train has the mounting bracket, the front movable mounting of mounting bracket has detector and light sensor, because the setting of balladeur train good mounting bracket can remove the holistic position of detector and light sensor through balladeur train and mounting bracket under the cooperation of support frame and spacing groove to make its detection that is applicable to not unidimensional work piece, and can fix a position the work piece that removes to its below at any time through light sensor, thereby in time detect it with the detector.

Preferably, the spacing groove has been seted up at the positive top of support frame, the check lock lever has been cup jointed in the inside activity of spacing groove, the left end of check lock lever runs through spacing groove and support frame and extends to the left side of support frame, the right-hand member of check lock lever runs through spacing groove and support frame and extends to the right side of support frame and screw thread cup joint the lock sleeve, the left side of lock sleeve and the right side swing joint of balladeur train through the check lock lever and the lock sleeve that set up, can wholly remove and fix the balladeur train through the spacing groove under the cooperation of the two to make detector and optical sensor can remove to arbitrary position and can fix it.

Preferably, the positive movable mounting of support frame has the connecting plate that is located the light sensor back, the positive fixed mounting of connecting plate has the rectangle pole, the left end fixedly connected with rectangular block of rectangle pole because the setting of rectangle pole can restrict the screw rod when the thread bush drives the threaded rod motion, can further restrict the screw rod simultaneously under the cooperation of rectangle block, and then avoid it to follow the thread bush rotation.

Preferably, the threaded rod is sleeved on the outer surface of the rectangular block in a movable mode, the thread sleeve is sleeved on the outer surface of the threaded rod in a threaded mode, the left side of the threaded rod penetrates through the thread sleeve and is fixedly connected with the right side of the optical sensor, the right side of the thread sleeve is movably connected with the left side of the connecting plate, the threaded sleeve is arranged in a set mode, the rotary thread sleeve can drive the optical sensor to move left and right under the limit of the rectangular rod and the rectangular block to the threaded rod, and therefore the rotary thread sleeve is suitable for positioning workpieces of different sizes.

Preferably, the right side fixed mounting of balladeur train has the pneumatic rod, the left side of pneumatic rod runs through spacing groove and support frame and extends to the left side of balladeur train and fixedly connected with rubber pad, because the setting of pneumatic rod, can be after the work piece that the detector was to its below detects, the pneumatic rod can promote unqualified product through the rubber pad to make it rejected.

Preferably, the constant head tank has been seted up in the front of mounting bracket, the quantity of constant head tank is two, two the connecting axle has been cup jointed in the equal activity of inside of constant head tank, through the constant head tank that sets up, can adjust the height of detector and thread bush under the cooperation of connecting axle, and then also can reach the effect of highly adjusting to light sensor.

Preferably, the quantity of connecting axle is two, two the front of connecting axle all runs through the constant head tank and extends to the front of mounting bracket and respectively with the back fixed connection of detector and connecting plate, because the setting of connecting axle not only can highly adjust detector and thread bush under the cooperation with the constant head tank, also can reach the effect that restriction it rocked simultaneously to realize stable the removal.

Preferably, two the constant head tank is all run through and the back that extends to the mounting bracket and all through bolt fixedly connected with fixed plate to the back of connecting axle, the front of fixed plate and the back swing joint of mounting bracket through the fixed plate that sets up, can fix thread bush and detector under the cooperation of connecting axle to make it fix a position and detect not unidimensional work piece.

Preferably, the positive movable mounting of support frame has the conveyer belt that is located the atmospheric pressure pole below, the top movable mounting of conveyer belt inner chamber has the backup pad, the back of backup pad and the positive fixed connection of support frame can transmit batch work piece under the cooperation of backup pad because the setting of conveyer belt, simultaneously because the cooperation of backup pad can be ensured when transmitting the work piece, can not lead to the condition that the work piece emptys because of the bending of conveyer belt to improve the stability of work piece transmission.

Preferably, the driving roller that is located the backup pad left and right sides is cup jointed in the equal activity in both ends about the conveyer belt inner wall, the inside activity joint of driving roller has the transmission shaft, the back of driving roller and transmission shaft all with the positive swing joint of support frame, the back fixedly connected with connecting axle of transmission shaft, the back of connecting axle runs through the inner wall activity of support frame and surface and support frame and cup joints, through the transmission shaft that sets up, can drive the conveyer belt through two driving rollers and stabilize rotatoryly under the transmission of connecting axle, can be connected the whole external drive device of transmission shaft simultaneously through the connecting axle to reach the motion that the equipment of opening started the conveyer belt simultaneously.

The invention has the following beneficial effects:

1. according to the invention, the positions of the sliding frame, the mounting frame, the detector and the threaded sleeve can be respectively adjusted through the sliding frame, the mounting frame, the limiting groove and the positioning groove, the effect of adjusting the position of the optical sensor can be achieved, and the positions of the sliding frame, the detector and the threaded sleeve can be respectively fixed under the matching of the locking rod, the locking sleeve, the connecting shaft and the fixing plate, so that the effects of being suitable for detecting and positioning workpieces with different sizes are achieved.

2. According to the invention, through the optical sensor, the rectangular rod, the threaded sleeve and the threaded rod, the threaded rod can be driven to move left and right by rotating the threaded sleeve under the limit of the rectangular rod and the rectangular block on the threaded rod, so that the effect of adjusting the position of the optical sensor can be achieved, and the optical sensor can be used for automatically positioning workpieces with different sizes and positioned at different positions on the top of the conveyor belt.

3. According to the invention, the sliding frame, the air pressure rod and the rubber pad are used for driving the air pressure rod to move along the inner wall of the limiting groove while the sliding frame integrally moves the detector and the optical sensor, so that the effect that the air pressure rod is always positioned right below the detector is achieved, the effect of rejecting unqualified products can be achieved through the air pressure rod and the rubber pad through the feedback of the detector to the air pressure rod, and finally the steps can be repeated by transmitting the next workpiece to the position below the optical sensor 7 under the transmission of the conveyor belt, so that the effect of continuously detecting and rejecting unqualified products is achieved.

Drawings

FIG. 1 is a schematic structural view of the present invention;

FIG. 2 is a schematic view of the back structure of the present invention

FIG. 3 is a front sectional view of the support plate of the present invention;

FIG. 4 is a side cross-sectional structural schematic view of the present invention;

FIG. 5 is a schematic side sectional view of the air spring of the present invention;

FIG. 6 is a schematic view of a large scale-up structure at A in FIG. 3;

fig. 7 is a schematic diagram of a large-scale structure at B in fig. 4.

In the figure: 1. a chassis; 2. an operation table; 3. a support frame; 4. a carriage; 5. a mounting frame; 6. a detector; 7. a light sensor; 8. a limiting groove; 9. a locking lever; 10. a locking sleeve; 11. a connecting plate; 12. a rectangular bar; 13. a threaded sleeve; 14. a threaded rod; 15. a rectangular block; 16. a pneumatic rod; 17. a rubber pad; 18. positioning a groove; 19. a connecting shaft; 20. a fixing plate; 21. a driving roller; 22. a conveyor belt; 23. a support plate; 24. a drive shaft; 25. and (7) connecting the shafts.

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.

As shown in fig. 1 to 7, in the embodiment of the present invention, an AOI detection apparatus for detecting a solder joint of a PCB includes a chassis 1, an operation platform 2 is fixedly installed on a top of the chassis 1, a support frame 3 is fixedly installed at a rear end of a top of the operation platform 2, a carriage 4 is movably installed on a top of the support frame 3, a mounting frame 5 is fixedly installed on a top of the carriage 4, and a detector 6 and an optical sensor 7 are movably installed on a front surface of the mounting frame 5, and due to the fact that the carriage 4 is well installed on the mounting frame 5, the position of the detector 6 and the position of the optical sensor 7 can be moved integrally through the carriage 4 and the mounting frame 5 under the cooperation of the support frame 3 and a limit groove 8, so that the AOI detection apparatus is suitable for detecting workpieces with different sizes, and the optical sensor 7 can position a workpiece moved to a position below the detector at any time, so that the workpiece and the detector 6 can be detected in time.

Wherein, spacing groove 8 has been seted up at the positive top of support frame 3, check lock bar 9 has been cup jointed in the inside activity of spacing groove 8, check lock bar 9's left end runs through spacing groove 8 and support frame 3 and extends to the left side of support frame 3, check lock bar 9's right-hand member runs through spacing groove 8 and support frame 3 and extends to support frame 3's right side and screw thread and has cup jointed lock sleeve 10, the left side of lock sleeve 10 and balladeur train 4's right side swing joint, through the check lock bar 9 and the lock sleeve 10 that set up, can wholly remove and fix balladeur train 4 through spacing groove 8 under the cooperation of the two, thereby make detector 6 and optical sensor 7 can remove to arbitrary position and can fix it.

Wherein, the front movable mounting of support frame 3 has the connecting plate 11 that is located the light sensor 7 back, and the front fixed mounting of connecting plate 11 has rectangular rod 12, and the left end fixedly connected with rectangular block 15 of rectangular rod 12 because the setting of rectangular rod 12 can restrict threaded rod 14 when threaded bush 13 drives threaded rod 14 motion, can further restrict threaded rod 14 simultaneously under the cooperation of rectangular block 15, and then avoid it to follow the rotation of threaded bush 13.

Wherein, threaded rod 14 has been cup jointed in the surface activity of rectangular block 15, threaded sleeve 13 has been cup jointed to the surface screw thread of threaded rod 14, threaded sleeve 13 and the right side fixed connection of light sensor 7 are run through on the left side of threaded rod 14, the right side of threaded sleeve 13 and the left side swing joint of connecting plate 11, through the setting of the threaded sleeve 13 that sets up, rotatory threaded sleeve 13 can be under rectangular rod 12 and rectangular block 15 restriction to threaded rod 14, control about driving light sensor 7 through threaded rod 14, so that it is applicable to and fixes a position not unidimensional work piece.

Wherein, the right side fixed mounting of balladeur train 4 has pneumatic rod 16, and spacing groove 8 and support frame 3 and extend to the left side of balladeur train 4 and fixedly connected with rubber pad 17 are run through to pneumatic rod 16's left side, because pneumatic rod 16's setting, can be at the work piece of detector 6 to its below detect the back, pneumatic rod 16 can promote unqualified product through rubber pad 17 to make it rejected.

Wherein, the constant head tank 18 has been seted up in the front of mounting bracket 5, and the quantity of constant head tank 18 is two, and connecting axle 19 has been cup jointed in the equal activity of inside of two constant head tanks 18, through the constant head tank 18 that sets up, can adjust the height of detector 6 and thread bush 13 under the cooperation of connecting axle 19, and then also can reach the effect of adjusting the height of light sensor 7.

Wherein, the quantity of connecting axle 19 is two, and the front of two connecting axles 19 all runs through constant head tank 18 and extend to the front of mounting bracket 5 and respectively with the back fixed connection of detector 6 and connecting plate 11, owing to the setting of connecting axle 19, not only can highly adjust detector 6 and thread bush 13 under the cooperation with constant head tank 18, also can reach the effect of restriction its rocking simultaneously to realize the steady removal.

Wherein, the constant head tank 18 and extend to the back of mounting bracket 5 and all through bolt fixedly connected with fixed plate 20 are all run through to the back of two connecting axles 19, the front of fixed plate 20 and the back swing joint of mounting bracket 5, through the fixed plate 20 that sets up, can fix thread bush 13 and detector 6 under connecting axle 19's cooperation to make it fix a position and detect not unidimensional work piece.

Wherein, the front movable mounting of support frame 3 has the conveyer belt 22 that is located the pneumatic rod 16 below, the top movable mounting of conveyer belt 22 inner chamber has backup pad 23, the back of backup pad 23 and the front fixed connection of support frame 3, because the setting of conveyer belt 22, can transmit batch work piece under the cooperation of backup pad 23, simultaneously because the cooperation of backup pad 23 can be ensured when transmitting the work piece, can not lead to the condition that the work piece emptys because the bending of conveyer belt 22 to improve the stability of work piece transmission.

Wherein, the equal activity in both ends of controlling of conveyer belt 22 inner wall has cup jointed the driving roller 21 that is located the backup pad 23 left and right sides, the inside activity joint of driving roller 21 has transmission shaft 24, the back of driving roller 21 and transmission shaft 24 all with the positive swing joint of support frame 3, the back fixedly connected with connecting axle 25 of transmission shaft 24, the back of connecting axle 25 runs through support frame 3 and the surface cup joints with the inner wall activity of support frame 3, transmission shaft 24 through setting up, can drive conveyer belt 22 through two driving rollers 21 under the transmission of connecting axle 25 and stabilize rotatoryly, can be connected the whole with external drive device of transmission shaft 24 simultaneously through connecting axle 25, thereby reach the motion that the equipment of opening started conveyer belt 22 simultaneously.

The working principle and the using process are as follows:

firstly, workpieces to be detected in batches are placed on the conveyor belt 22, then the positions of the detector 6 and the optical sensor 7 are adjusted according to the positions of the workpieces, firstly, the locking rod 9 and the locking sleeve 10 are rotated to release the locking of the sliding frame 4, the detector 6 and the light sensor 7 are then moved integrally to the desired position by the carriage 4, the carriage 4 is locked by the locking rod 9 and the locking sleeve 10, the rotation of the fixing plate 20 can then unlock the threaded sleeve 13 and the measuring device 6 via the connecting shaft 19, after the detector 6 and the threaded sleeve 13 are integrally moved to the required height respectively, the fixed plate 20 is screwed in to lock the detector 6 and the threaded sleeve 13, and finally the threaded sleeve 13 is rotated to drive the threaded rod 14 to move left and right under the limitation of the rectangular rod 12 and the rectangular block 15, so that the optical sensor 7 can be driven to move left and right to the required position through the threaded rod 14;

finally, the equipment is started to simultaneously start the detector 6, the optical sensor 7 and the conveyor belt 22, and as the movement of the conveyor belt 22 can stably transmit batch workpieces under the cooperation of the supporting plate 23, when the workpieces move to the position below the optical sensor 7, signals can be transmitted to a computer through a lead and the conveyor belt 22 is controlled to stop running for a certain time through the lead, the workpieces can be stopped from being conveyed, so that the detector 6 can conveniently detect the workpieces;

and when detecting the unqualified product, the pneumatic rod 16 can be controlled by a lead to be started, and then the unqualified product is removed by the rubber pad 17.

It is noted that, herein, relational terms such as first and second, and the like may be used solely to distinguish one entity or action from another entity or action without necessarily requiring or implying any actual such relationship or order between such entities or actions. Also, the terms "comprises," "comprising," or any other variation thereof, are intended to cover a non-exclusive inclusion, such that a process, method, article, or apparatus that comprises a list of elements does not include only those elements but may include other elements not expressly listed or inherent to such process, method, article, or apparatus.

Although embodiments of the present invention have been shown and described, it will be appreciated by those skilled in the art that changes, modifications, substitutions and alterations can be made in these embodiments without departing from the principles and spirit of the invention, the scope of which is defined in the appended claims and their equivalents.

Claims

1. The utility model provides a PCB board solder joint detects AOI detection device who uses, includes quick-witted case (1), its characterized in that: the top fixed mounting of machine case (1) has operation panel (2), the rear end fixed mounting at operation panel (2) top has support frame (3), the top movable mounting of support frame (3) has balladeur train (4), the top fixed mounting of balladeur train (4) has mounting bracket (5), the positive movable mounting of mounting bracket (5) has detector (6) and light sensor (7).

2. The AOI detection device for PCB solder joint detection according to claim 1, wherein: spacing groove (8) have been seted up at the positive top of support frame (3), check lock lever (9) have been cup jointed in the inside activity of spacing groove (8), the left end of check lock lever (9) runs through spacing groove (8) and support frame (3) and extends to the left side of support frame (3), check lock lever (9)'s right-hand member runs through spacing groove (8) and support frame (3) and extends to the right side of support frame (3) and screw thread cup joints lock sleeve (10), the left side of lock sleeve (10) and the right side swing joint of balladeur train (4).

3. The AOI detection device for PCB solder joint detection according to claim 1, wherein: the front movable mounting of support frame (3) has connecting plate (11) that are located the light sensor (7) back, the front fixed mounting of connecting plate (11) has rectangle pole (12), the left end fixedly connected with rectangular block (15) of rectangle pole (12).

4. The AOI detection device for PCB solder joint detection according to claim 3, wherein: threaded rod (14) have been cup jointed in the surface activity of rectangle piece (15), threaded bush (13) has been cup jointed to the surface screw thread of threaded rod (14), the left side of threaded rod (14) run through threaded bush (13) and with the right side fixed connection of light sensor (7), the right side of threaded bush (13) and the left side swing joint of connecting plate (11).

5. The AOI detection device for PCB solder joint detection according to claim 1, wherein: the right side fixed mounting of balladeur train (4) has pneumatic rod (16), spacing groove (8) and support frame (3) are run through and extend to the left side of balladeur train (4) and fixedly connected with rubber pad (17) in the left side of pneumatic rod (16).

6. The AOI detection device for PCB solder joint detection according to claim 1, wherein: the front of mounting bracket (5) has seted up constant head tank (18), the quantity of constant head tank (18) is two, two the equal activity of inside of constant head tank (18) has cup jointed connecting axle (19).

7. The AOI detection device for PCB solder joint detection according to claim 6, wherein: the quantity of connecting axle (19) is two, two the front of connecting axle (19) all runs through constant head tank (18) and extend to the front of mounting bracket (5) and respectively with the back fixed connection of detector (6) and connecting plate (11).

8. The AOI detection device for PCB solder joint detection according to claim 6, wherein: the back of two connecting axle (19) all runs through constant head tank (18) and extends to the back of mounting bracket (5) and all through bolt fixedly connected with fixed plate (20), the front of fixed plate (20) and the back swing joint of mounting bracket (5).

9. The AOI detection device for PCB solder joint detection according to claim 6, wherein: the front movable mounting of support frame (3) has conveyer belt (22) that are located pneumatic rod (16) below, the top movable mounting of conveyer belt (22) inner chamber has backup pad (23), the back of backup pad (23) and the front fixed connection of support frame (3).

10. The AOI detection device for PCB solder joint detection according to claim 9, wherein: the equal activity in both ends of controlling of conveyer belt (22) inner wall has cup jointed driving roller (21) that are located backup pad (23) left and right sides, the inside activity joint of driving roller (21) has transmission shaft (24), the back of driving roller (21) and transmission shaft (24) all with the front swing joint of support frame (3), the back fixedly connected with connecting axle (25) of transmission shaft (24), the back of connecting axle (25) runs through the inner wall activity of support frame (3) and surface and support frame (3) and cup joints.