CN219179243U

CN219179243U - PCB detection equipment

Info

Publication number: CN219179243U
Application number: CN202223606709.5U
Authority: CN
Inventors: 帅欣然
Original assignee: Shenzhen Goodfellas Intelligent Technology Co ltd
Current assignee: Shenzhen Goodfellas Intelligent Technology Co ltd
Priority date: 2022-12-29
Filing date: 2022-12-29
Publication date: 2023-06-13
Anticipated expiration: 2032-12-29

Abstract

The utility model discloses PCB detection equipment, which comprises a rack and a detection device, wherein the rack is provided with a feeding level and at least two detection positions; the detection device comprises a rotating seat, a plurality of material carrying seats, a dirty detection camera and a quality detection camera, wherein the rotating seat is rotatably installed on the frame and is positioned on one side of a material loading position, the material carrying seats are all installed on the rotating seat and surround the rotating axis of the rotating seat, the material carrying seats sequentially pass through two detection positions when the rotating seat rotates, the dirty detection camera is installed on one of the detection positions and faces to the material carrying seats below the detection positions, the quality detection camera is installed on the other detection position and faces to the material carrying seats below the detection positions, and the quality detection camera is positioned on the downstream of the dirty detection camera. The technical scheme of the utility model can improve the detection accuracy of the PCB.

Description

PCB detection equipment

Technical Field

The utility model relates to the field of PCB detection, in particular to PCB detection equipment.

Background

In recent years, the continuous development of information technology has led to rapid development of PCB boards as an important component of information technology, wherein in order to ensure that the output PCB boards are qualified, the PCB boards need to be subjected to defect inspection during production. At present, a PCB is usually shot by a CCD camera to judge whether the PCB has defects (such as welding defects and the like), however, in the actual production detection process, the PCB is possibly stained with dirt, and therefore, when the PCB is shot and detected by the CCD camera, the PCB is possibly misjudged as an unqualified product due to the dirt, and the PCB is also misjudged as a qualified product due to the fact that the defect is shielded by the dirt, so that the detection accuracy is poor.

Disclosure of Invention

The utility model mainly aims to provide PCB detection equipment, which aims to improve the detection accuracy of a PCB.

In order to achieve the above object, the present utility model provides a PCB inspection apparatus, comprising:

the rack is provided with a feeding position and at least two detection positions; and

the detection device comprises a rotating seat, a plurality of material carrying seats, a dirt detection camera and a quality detection camera, wherein the rotating seat is rotatably installed on the frame and positioned on one side of a material loading position, the material carrying seats are all installed on the rotating seat and surround the rotating axis of the rotating seat, the material carrying seats sequentially pass through two detection positions when the rotating seat rotates, the dirt detection camera is installed on one of the detection positions and faces towards the material carrying seat arranged below the detection positions, the quality detection camera is installed on the other detection position and faces towards the material carrying seat arranged below the detection positions, and the quality detection camera is positioned on the downstream of the dirt detection camera.

Optionally, the number of the carrying seats is four, the frame is further provided with a middle position, when the rotating seat stops rotating, two carrying seats are respectively located below the two detection positions, another carrying seat is adjacent to the feeding position, and the last carrying seat is adjacent to the middle position.

Optionally, the rotary seat is square, and each side position of the rotary seat is correspondingly provided with one material carrying seat.

Optionally, the material carrying seat comprises a first seat body and a negative pressure suction head arranged on the first seat body, wherein the negative pressure suction head is upwards arranged and is used for being connected with a negative pressure generating device so as to adsorb the PCB on the material carrying seat.

Optionally, the material carrying seat comprises a plurality of negative pressure suction heads, a mounting rail is arranged on the first seat body, the negative pressure suction heads are slidably mounted on the mounting rail, a locking piece is arranged on the negative pressure suction heads, and the locking piece is used for fixing the negative pressure suction heads on the mounting rail.

Optionally, two mounting rails are arranged on the first base body side by side, and a plurality of negative pressure suction heads are arranged on each mounting rail.

Optionally, be equipped with a plurality of slip tracks on the roating seat, a plurality of the slip track is followed the circumference of roating seat is arranged in proper order head and tail, every carry the material seat correspond install in one the slip track, PCB check out test set still includes two at least drive assembly, drive assembly install in the frame or the roating seat, drive assembly with carry the material seat to be connected, be used for the drive carry the material seat of detection position below along the slip track removes, makes quality detection camera with dirty detection sweeps respectively carry the PCB board on the material seat.

Optionally, the number of the detecting devices is two, the PCB detecting apparatus further includes a turn-over transferring mechanism, the turn-over transferring mechanism is disposed between the two detecting devices, and the turn-over transferring mechanism is used for turning over the PCB detected by the previous detecting device and transferring the PCB to the next detecting device.

Optionally, the PCB detection apparatus further includes a feeding manipulator, a feeding rack, and an empty tray rack, where the rack is further provided with a feeding level, the feeding rack is slidably mounted on the feeding level, and the feeding rack is used for placing a tray filled with a PCB; the empty tray frame is slidably arranged at the feeding level and is arranged side by side with the feeding frame; the feeding manipulator is arranged on the frame and is positioned above the feeding level, the feeding manipulator is used for taking a PCB (printed Circuit Board) in the feeding frame to transfer towards the detection device, and the feeding manipulator is also used for transferring an empty tray on the feeding frame to the empty tray frame.

Optionally, the PCB detection apparatus further includes a transfer mechanism, where the transfer mechanism includes a placement seat and a transfer manipulator, the placement seat is installed between the loading level and the rotating seat, the placement seat is provided with a placement position, the placement position is used for placing a PCB, and the transfer manipulator is movably installed above the placement seat and is used for moving between the placement seat and the detection device; the feeding manipulator is used for transferring the PCB in the feeding level to the placing seat, and the transfer manipulator is used for transferring the PCB on the placing seat to the detection device.

According to the technical scheme, the dirt detection camera is arranged in front of the quality detection camera, and the dirt detection camera is used for detecting whether dirt exists on the PCB or not during detection, so that the dirt PCB can be screened out, the situation that the PCB is misjudged due to the fact that the dirt exists on the PCB can be avoided, and the detection accuracy of the PCB is improved. And the rotary seat is used for rotating to drive the plurality of material carrying seats, so that the PCB on the material carrying seats sequentially passes through the dirt detection camera and the quality detection camera, the PCB is continuously conveyed by the plurality of material carrying seats for detection, the detection efficiency of the PCB can be improved, the whole structure of the detection device is compact, and the size of the PCB detection equipment is reduced.

Drawings

In order to more clearly illustrate the embodiments of the present utility model or the technical solutions in the prior art, the drawings that are required in the embodiments or the description of the prior art will be briefly described, and it is obvious that the drawings in the following description are only some embodiments of the present utility model, and other drawings may be obtained according to the structures shown in these drawings without inventive effort for a person skilled in the art.

FIG. 1 is a schematic view of a PCB inspection device according to an embodiment of the present utility model with a portion of a chassis removed;

FIG. 2 is a schematic view of a part of the PCB inspection device shown in FIG. 1;

FIG. 3 is a schematic view of a portion of the frame and detection device of FIG. 1;

FIG. 4 is an enlarged view of FIG. 3 at A;

FIG. 5 is a schematic diagram of the visual inspection mechanism of FIG. 4;

FIG. 6 is a schematic view of the visual inspection mechanism of FIG. 5 at another angle;

FIG. 7 is a schematic view of a visual inspection mechanism in another embodiment of a PCB inspection apparatus according to the present utility model;

FIG. 8 is a schematic view of the structure of the rotary base of FIG. 4;

FIG. 9 is a schematic view of the material loading seat in FIG. 4;

fig. 10 is a schematic structural view of the driving assembly in fig. 4.

Reference numerals illustrate:

10. a frame; 11. feeding the material; 16. discharging the material; 171. a feeding frame; 172. an empty tray rack; 173. a blanking frame; 174. a tray frame; 18. a blanking manipulator; 19. a feeding manipulator; 191. a mechanical arm; 192. a first material taking structure; 20. a detection device; 200. a camera assembly; 201. a stain detection camera; 202. a quality detection camera; 21. a rotating seat; 211. a sliding rail; 212. a relief through hole; 22. a material carrying seat; 221. a first base; 222. a top plate; 223. an abutting portion; 224. a connection part; 225. a slide block; 226. a mounting rail; 227. a negative pressure suction head; 228. a locking member; 23. a visual detection mechanism; 231. a fixing frame; 232. an assembly plate; 2321. a first mounting hole; 233. an adjustment assembly; 2331. a first lifting module; 2332. a traversing module; 2333. a rotating module; 234. a lighting assembly; 2341. a lighting lamp; 235. a second lifting module; 30. a transfer mechanism; 31. a placement seat; 32. a transfer manipulator; 40. a drive assembly; 41. a linear motor; 42. a pushing structure; 421. a second seat body; 422. a pushing member; 423. a pushing part; 50. and a turn-over transfer mechanism.

The achievement of the objects, functional features and advantages of the present utility model will be further described with reference to the accompanying drawings, in conjunction with the embodiments.

Detailed Description

The following description of the embodiments of the present utility model will be made clearly and fully with reference to the accompanying drawings, in which it is evident that the embodiments described are only some, but not all embodiments of the utility model. All other embodiments, which can be made by those skilled in the art based on the embodiments of the utility model without making any inventive effort, are intended to be within the scope of the utility model.

It should be noted that, if directional indications (such as up, down, left, right, front, and rear … …) are included in the embodiments of the present utility model, the directional indications are merely used to explain the relative positional relationship, movement conditions, etc. between the components in a specific posture (as shown in the drawings), and if the specific posture is changed, the directional indications are correspondingly changed.

In addition, if there is a description of "first", "second", etc. in the embodiments of the present utility model, the description of "first", "second", etc. is for descriptive purposes only and is not to be construed as indicating or implying a relative importance or implicitly indicating the number of technical features indicated. Thus, a feature defining "a first" or "a second" may explicitly or implicitly include at least one such feature. In addition, the meaning of "and/or" as it appears throughout is meant to include three side-by-side schemes, for example, "a and/or B", including a scheme, or B scheme, or a scheme that is satisfied by both a and B. In addition, the technical solutions of the embodiments may be combined with each other, but it is necessary to base that the technical solutions can be realized by those skilled in the art, and when the technical solutions are contradictory or cannot be realized, the combination of the technical solutions should be considered to be absent and not within the scope of protection claimed in the present utility model.

The utility model provides PCB detection equipment.

In the embodiment of the present utility model, as shown in fig. 1 to 10, the PCB detecting apparatus includes a frame 10, a feeding manipulator 19, and a detecting device 20, where the frame 10 is provided with a feeding level 11; the detection device 20 is arranged on the frame 10 and is located at one side of the feeding level 11, the feeding manipulator 19 is arranged on the frame 10 and is located above the feeding level 11, and the feeding manipulator 19 is used for transferring the PCB in the feeding frame 171 to the detection device 20. When the PCB detection device is used, the PCB to be detected can be placed on the feeding position 11, and the feeding manipulator 19 transfers the PCB on the feeding position 11 to the detection device 20 for detection. Of course, in other embodiments, the feeding manipulator 19 may not be provided, for example, the PCB may be manually placed at a corresponding position of the detecting device 20 for detection, or the PCB may be transferred to the corresponding position of the detecting device 20 by a conveyor belt for detection.

In some embodiments, the rack 10 is provided with at least two detection bits; the detecting device 20 includes a rotating base 21, a plurality of carrying bases 22, a dirt detecting camera 201 and a quality detecting camera 202, the rotating base 21 is rotatably mounted on the frame 10 (the rotating direction of the rotating base 21 refers to the direction indicated by the arrow at X in fig. 3) and is located at one side of the loading level 11, the plurality of carrying bases 22 are mounted on the rotating base 21 and are arranged around the rotating axis of the rotating base 21, when the rotating base 21 rotates, the plurality of carrying bases 22 sequentially pass through two detecting positions, the dirt detecting camera 201 is mounted at one of the detecting positions and is disposed towards the carrying base 22 located below the detecting position, the quality detecting camera 202 is mounted at the other detecting position and is disposed towards the carrying base 22 located below the detecting position, and the quality detecting camera 202 is located downstream of the dirt detecting camera 201.

Specifically, the PCB inspection apparatus further includes a driving device, which is mounted on the frame 10 and is in driving connection with the rotating base 21, so as to drive the rotating base 21 to rotate. When in use, the PCB is placed on the material carrying seat 22 close to the material loading position 11, the material carrying seat 22 filled with the PCB is moved to the lower part of the dirt detection camera 201 (meanwhile, the other adjacent material carrying seat 22 is moved to the position close to the material loading position 11) by rotating the rotating seat 21, and the PCB is shot by the dirt detection camera 201, so that whether dirt exists on the PCB is detected. After the detection of the contamination detection camera 201 is completed, the rotating base 21 rotates, so that the PCB board detected by the contamination detection camera 201 moves below the quality detection camera 202, and the quality of the PCB board is detected by the quality detection camera 202 (e.g., whether there is a soldering defect, a scratch, a position and interval error of a wire and a component, a size error of a circuit and a component, a component shape error, on-off of a circuit, etc.). Alternatively, the stain detection camera 201 and the quality detection camera 202 are both CCD cameras.

When the dirt detecting camera 201 detects that the PCB has a dirt condition, the PCB on the carrier seat 22 may be directly removed by a set manipulator or by manual operation, or may be passed through the quality detecting camera 202 (the quality detecting may not be performed at this time), and the dirt PCB and the qualified PCB are separated when the material is finally discharged (since the PCB has an identification code, the identification code may be scanned by the code scanner before the material is detected, so that the material can be distinguished when the material is discharged). Similarly, when the quality detection camera 202 detects that the PCB has a defect, the PCB on the carrier seat 22 may be directly removed by a set manipulator or by manual work, or after a subsequent detection process, the unqualified PCB and the qualified PCB may be separated during final blanking.

According to the technical scheme, the dirt detection camera 201 is arranged in front of the quality detection camera 202, and the dirt detection camera 201 is used for detecting whether dirt exists on the PCB or not during detection, so that the dirt PCB can be screened out, the situation that the PCB is misjudged due to the fact that the dirt exists on the PCB can be avoided, and the detection accuracy of the PCB is improved. And the rotary seat 21 is used for rotating to drive the plurality of material carrying seats 22, so that the PCB on the material carrying seats 22 sequentially passes through the dirt detection camera 201 and the quality detection camera 202, and the PCB is continuously conveyed by the plurality of material carrying seats 22 for detection, so that the detection efficiency of the PCB can be improved, the whole structure of the detection device 20 is compact, and the size of PCB detection equipment is reduced.

In some embodiments, the number of the loading seats 22 is four, the frame 10 is further provided with a middle position, and when the rotating seat 21 stops rotating, two loading seats 22 are respectively located below two detection positions (corresponding to detection positions), another loading seat 22 is adjacent to the loading position 11 (corresponding to a loading position), and the last loading seat 22 is adjacent to the middle position (corresponding to a blanking position). That is, in the detection process, each material carrying seat 22 is located at one station (a feeding station, a discharging station and two detection stations) to perform corresponding working procedures, so that the condition that the idle material carrying seat 22 exists is avoided, the detection efficiency can be improved, the structure of the PCB detection equipment can be improved, and the size of the PCB detection equipment can be reduced. Of course, the present utility model is not limited thereto, and in other embodiments, the number of the material loading seats 22 may be three (in this case, a manipulator may be disposed at each detection position to directly remove the dirty PCB board when the dirty PCB board is detected by the dirty detection camera 201, and directly remove the qualified or unqualified PCB board after the detection by the quality detection camera 202), or five, etc.

In some embodiments, the rotating base 21 is square, and a material carrying base 22 is disposed at each side position of the rotating base 21. The side position that so utilizes square roating seat 21 sets up and carries material seat 22 for the space that supplies the PCB board to place on each material seat 22 is great, can be applicable to rectangular shape PCB board, also can be applicable to small-size PCB board and use, has promoted PCB check out test set's compatibility. Of course, in other embodiments, the rotary seat 21 may be provided in a circular shape, or the like.

In some embodiments, the material loading seat 22 includes a first seat 221 and a negative pressure suction head 227 mounted on the first seat 221, the negative pressure suction head 227 is upward disposed, and the negative pressure suction head 227 is used for connecting a negative pressure generating device to adsorb the PCB board on the material loading seat 22. Specifically, the negative pressure suction head 227 may be a suction cup or a suction nozzle, the suction port of the negative pressure suction head 227 is upward, the negative pressure suction head 227 is connected with a negative pressure generating device, and negative pressure can be generated at the suction port of the negative pressure suction head 227 through the negative pressure generating device, so that when a PCB board is placed on the negative pressure suction head 227, the PCB board can be adsorbed, and the falling or shifting of the PCB board in the transferring and detecting process can be prevented. And when the PCB is moved to a proper position (middle position), the negative pressure generating device is closed or the air path between the negative pressure generating device and the negative pressure suction head 227 is disconnected, so that the PCB can be taken down from the negative pressure suction head 227. Thus, the PCB can be prevented from being damaged. Of course, in other embodiments, the loading base 22 is provided with clamping jaws, and the PCB board is clamped by the clamping jaws.

In some embodiments, the material loading seat 22 includes a plurality of negative pressure suction heads 227, the first seat 221 is provided with a mounting rail 226, the plurality of negative pressure suction heads 227 are slidably mounted on the mounting rail 226, and the negative pressure suction heads 227 are provided with locking members 228, and the locking members 228 are used for fixing the negative pressure suction heads 227 on the mounting rail 226. Specifically, the locking member 228 is a screw that is screwed to the suction head 227 and can abut against the mounting rail 226. The contact area between the material carrying seat 22 and the PCB can be increased by arranging the plurality of negative pressure suction heads 227, the risk of falling or shifting the PCB can be further reduced, and the long-strip PCB can be better absorbed. Of course, in other embodiments, retaining member 228 may be a pin.

In some embodiments, the first base 221 is provided with two mounting rails 226 disposed side by side, and each mounting rail 226 is provided with a plurality of negative pressure suction heads 227. Specifically, the upstream detection position is provided with two parallel dirt detection cameras 201, each dirt detection camera 201 is correspondingly located above one mounting rail 226, the downstream detection position is provided with two parallel quality detection cameras 202, and each quality detection camera 202 is correspondingly located above one mounting rail 226. During detection, a plurality of negative pressure suction heads 227 on each mounting rail 226 can absorb one PCB, namely, two PCBs can be simultaneously placed on one material carrying seat 22 for detection, so that the detection efficiency can be improved. Of course, in other embodiments, the same PCB (e.g., a larger PCB) may be suctioned by the suction heads 227 on both mounting rails 226.

In some embodiments, the number of the detecting devices 20 is two, and the PCB detecting apparatus further includes a turn-over transferring mechanism 50, where the turn-over transferring mechanism 50 is disposed between the two detecting devices 20, that is, the turn-over transferring mechanism 50 is disposed in the middle of the turn-over, and the turn-over transferring mechanism 50 is used for turning over the PCB board detected by the previous detecting device 20 and transferring the PCB board to the next detecting device 20. Specifically, when in use, the PCB board is moved from the loading level 11 to the first detecting device 20 for front (front side being detected first, back side being detected second) detection, after the front side detection is completed, the detected PCB board is moved to the next detecting device 20 by the turn-over transferring mechanism 50, and the PCB board is turned over to detect the back side of the PCB board by the next detecting device 20. Thus, the front and the back of the PCB are sequentially detected by the two detection devices 20 respectively, the retention time of the PCB at a single detection position can be reduced, and the detection efficiency can be improved. The turn-over transfer mechanism 50 may be a six-axis robot or other turn-over structure.

In some embodiments, the PCB detection apparatus further includes a loading manipulator 19, a loading frame 171, and an empty tray frame 172, the loading frame 171 is slidably mounted on the loading level 11, and the loading frame 171 is used for placing a tray containing a PCB board; the empty tray 172 is slidably mounted on the feeding level 11 and is arranged side by side with the feeding frame 171; the frame 10 is further provided with a loading level 11, a loading manipulator 19 is mounted on the frame 10 and located above the loading level 11, the loading manipulator 19 is used for taking a PCB (printed Circuit Board) board in the loading frame 171 and transferring towards the detection device 20, and the loading manipulator 19 is also used for transferring empty trays on the loading frame 171 to the empty tray frame 172.

Specifically, the frame 10 is further provided with a feeding opening, and the detection device 20 is positioned at one side of the feeding level 11 far away from the feeding opening; in the loading process, the loading frame 171 may be pulled out from the loading opening, a plurality of trays containing PCBs may be stacked and placed in the loading frame 171, and then the loading frame 171 may be pushed into the loading position 11. Before the detection, the empty tray frame 172 is in an empty state, and when all the PCB boards in the upper tray of the feeding frame 171 are taken out, the empty tray is transferred to the empty tray frame 172 by the feeding manipulator 19, so that the PCB boards in the lower tray can be continuously taken out to the detection device 20 for detection. When a certain number of empty trays are loaded in the empty tray holders 172, the empty tray holders 172 can be pulled out of the loading opening, and the empty trays can be taken out and pushed into the loading level 11 through the empty trays so as to continuously receive the empty trays.

The feeding manipulator 19 includes arm 191 and first material taking structure 192, and arm 191 installs in the top of frame 10, and first material taking structure 192 locates the tip of arm 191, and first material taking structure 192 can be used for taking PCB board and charging tray.

Through last material loading frame 171 and empty tray frame 172 that is provided with the extractable side by side at material loading level 11 to set up material loading manipulator 19 in last material loading level 11 top, like this with a plurality of stacks put into last material loading frame 171 after, the PCB board that the material loading was put at the upper most in the material loading frame 171 is shifted to detection mechanism through material loading manipulator 19 and is detected, and when the PCB board of the material loading frame 171 in the upper most in the material loading frame is whole take out the back, shift empty tray to empty tray frame 172 through material loading manipulator 19 in for the tray that the PCB board was equipped with in the below exposes, thereby can continue to shift the PCB board to detection mechanism through material loading manipulator 19 and detect. Thus, a plurality of trays can be placed in the feeding frame 171 at one time, and empty trays after material taking can be taken out at one time, so that the number of times of replacing the trays by manual replenishment is reduced, and the feeding efficiency can be improved. And realize material loading and shift empty charging tray through a material loading manipulator 19, can simplify the structure of material loading position 11 department to simplify the structure of PCB check out test set, can reduce PCB check out test set's manufacturing cost and maintenance cost.

In some embodiments, the loading robot 19 is a six-axis robot. Specifically, the mechanical arm 191 is a six-axis mechanical arm 191, so that the degree of freedom of the feeding mechanical arm 19 is high, and the feeding mechanical arm is more flexible, so that the transfer of the PCB and the tray is facilitated. Of course, in other embodiments, seven-axis or five-axis robotic arms 191 may also be employed.

In some embodiments, the PCB detection apparatus further includes a transfer mechanism 30, where the transfer mechanism 30 includes a placement seat 31 and a transfer manipulator 32, the placement seat 31 is installed between the loading level 11 and the rotating seat 21, the placement seat 31 is provided with a placement position for placing the PCB, and the transfer manipulator 32 is movably installed above the placement seat 31 for moving between the placement seat 31 and the detection device 20; the feeding manipulator 19 is used for transferring the PCB in the feeding level 11 to the placement seat 31, and the transfer manipulator 32 is used for transferring the PCB on the placement seat 31 to the detection device 20.

During operation, the PCB is taken from the tray of the feeding level 11 through the feeding manipulator 19, after the PCB is placed in the placement position of the placement seat 31, the feeding manipulator 19 returns to the feeding level 11 to continue taking the PCB, and meanwhile, the transfer manipulator 32 moves to the placement position to take the PCB, and then the PCB is moved to the detection device 20.

Through setting up the transfer mechanism 30 including placing seat 31 and transfer manipulator 32 between material loading level 11 and detection device 20, when using PCB check out test set, take the PCB board from the charging tray of material loading level 11 through material loading manipulator 19 earlier, place the PCB board in place the position back of placing seat 31 with the PCB board, material loading manipulator 19 returns material loading level 11 and continues to take the PCB board, and transfer manipulator 32 removes to place the position simultaneously and takes the PCB board, then removes the PCB board to detection device 20 in. Therefore, the feeding stroke of the feeding manipulator 19 can be shortened, the size of the feeding manipulator 19 can be reduced, and the structure is simplified. And the position of putting of PCB board in the charging tray is comparatively random generally, and rethread material loading manipulator 19 removes the PCB board behind the seat 31 of placing of transfer mechanism 30, can also be convenient for fix a position the PCB board to make transfer manipulator 32 accurately place the detection position at detection device 20 with the PCB board, can reduce the detection position skew risk of PCB board at detection device 20, promote the detection effect.

In the embodiment where the empty tray frame 172 and the feeding frame 171 are disposed at the feeding level 11, after the last or last group of PCB boards on the tray are transferred to the transfer mechanism 30 by the feeding manipulator 19, when the transfer manipulator 32 transfers the PCB boards on the placement seat 31, the feeding manipulator 19 can carry the empty tray in the feeding frame 171 to the empty tray frame 172, so that the movement stroke of the feeding manipulator 19 is shortened, the feeding manipulator 19 can carry the empty tray to the empty tray frame 172 more quickly, the waiting time of the detecting device 20 is also reduced, and the feeding efficiency of the PCB detecting device is improved.

In some embodiments, the rack 10 is further provided with a blanking level 16, the PCB detecting apparatus further includes a blanking manipulator 18, the blanking manipulator 18 is mounted on the rack 10 and located above the blanking level 16, and the blanking manipulator 18 is used for transferring the PCB board detected by the detecting device 20 to the blanking level 16. Specifically, the blanking level 16 is provided with at least one blanking frame 173, the blanking frame 173 is slidably mounted on the blanking level 16, when in use, a tray can be placed in the blanking frame 173 in advance, the detected PCB board is placed in the tray of the blanking frame 173 by the blanking manipulator 18, and when the blanking frame 173 is full or the number of the PCB boards reaches a certain number, the PCB boards can be taken out together, so that the number of manual material taking times can be reduced, and the labor cost can be reduced. Wherein a plurality of discharging frames 173 may be provided at the discharging frame 173, and the pass PCB and the fail PCB may be placed in different discharging frames 173. Or a buffer position is arranged on one side of the blanking level 16, qualified PCB boards are placed into a tray of the blanking frame 173 through the blanking manipulator 18, and unqualified PCB boards are placed into the buffer position. In addition, in other embodiments, the PCB inspection apparatus may be docked with the transfer apparatus to transfer the inspected PCB to the next process.

In some embodiments, the discharging level 16 is further provided with a tray frame 174, the discharging frame 173 and the tray frame 174 are slidably mounted on the discharging level 16 side by side, the tray frame 174 is used for stacking a plurality of empty trays, the discharging manipulator 18 is used for transferring the empty trays in the tray frame 174 to the discharging frame 173, and the discharging manipulator 18 is also used for transferring the PCB board detected by the detecting device 20 to the empty trays in the discharging frame 173. That is, when in use, the empty tray on the upper layer of the tray frame 174 is taken by the discharging manipulator 18, and transferred to the discharging frame 173, and then the PCB board detected by the detecting device 20 is transferred to the empty tray of the discharging frame 173. When the trays in the discharging frame 173 are filled with the PCB boards, empty trays are taken from the tray frame 174 and stacked above the full trays in the discharging frame 173.

In some embodiments, the detecting device 20 includes a rotating seat 21, a visual detecting mechanism 23 and a plurality of material loading seats 22, the rotating seat 21 is rotatably mounted on the frame 10, the rotating seat 21 is provided with a plurality of sliding rails 211, the plurality of sliding rails 211 are sequentially arranged end to end along the circumferential direction of the rotating seat 21, each material loading seat 22 is correspondingly mounted on one sliding rail 211, and the visual detecting mechanism 23 is disposed above the rotating seat 21 and is disposed downward; the PCB inspection apparatus further includes a driving assembly 40, where the driving assembly 40 is mounted on the frame 10 or the rotating base 21, and the driving assembly 40 is connected with the carrier 22 and is used to drive the carrier 22 to move relative to the visual inspection mechanism 23, so that the visual inspection mechanism 23 sweeps across the PCB board on the carrier 22.

In this embodiment, the visual detection mechanism 23 (for example, a CCD camera) is used to photograph the PCB on the carrier 22 to detect whether there is a defect (for example, whether there is a soldering defect, a scratch, a position and interval error of the wires and the components, a size error of the circuits and the components, a shape error of the components, on-off of the circuits, dirt, etc.) on the PCB.

In the initial state, the material carrying seat 22 is located at one end of the sliding track 211, when the material carrying seat 22 with the PCB is moved below the visual detection mechanism 23 by rotating the rotating seat 21, the rotating seat 21 stops rotating, the material carrying seat 22 is driven by the driving assembly 40 to move along the sliding track 211, and the PCB passes below the visual detection mechanism 23, so that the visual detection mechanism 23 sweeps the PCB on the material carrying seat 22 to detect the whole PCB.

According to the technical scheme, the plurality of sliding rails 211 are arranged on the rotary seat 21, the plurality of sliding rails 211 are sequentially arranged end to end along the circumferential direction of the rotary seat 21, each sliding rail 211 is provided with one material carrying seat 22, and the driving assembly 40 is arranged on the frame 10 or the rotary seat 21, so that the driving assembly 40 is connected with the material carrying seat 22, and during detection, the material carrying seat 22 can be driven by the driving assembly 40 to move along the sliding rails 211, and the PCB passes under the visual detection mechanism 23, so that the visual detection mechanism 23 sweeps the PCB on the material carrying seat 22, and the whole PCB is detected. So drive the PCB board from visual detection mechanism 23 below through loading seat 22, need not adjust visual detection mechanism 23 highly can make visual detection mechanism 23 shoot whole PCB board, can avoid highly too high and reduce the condition of detecting the precision because of visual detection mechanism 23, promoted the detection accuracy to the PCB board, reduce the erroneous judgement risk to the PCB board. And can be applicable to the PCB board of multiple specification, promoted PCB check out test set's compatibility.

In some embodiments, the driving assembly 40 is mounted on the frame 10 and located below the rotating seat 21, and the driving assembly 40 is provided with a pushing structure 42, where the pushing structure 42 has a movable pushing member 422, and the pushing member 422 is used for abutting against the loading seat 22 to push the loading seat 22 to move along the sliding track 211. Specifically, the pushing member 422 has an abutment position and a downward-moved avoiding position relative to the abutment position, and when the pushing member 422 is in the abutment position, the pushing member 422 abuts against the loading seat 22 to push the loading seat 22 to move along the sliding rail 211 under the action of the driving assembly 40. When the pushing member 422 is at the avoiding position, the pushing member 422 is located outside the movement path of the material carrying seat 22 when the rotating seat 21 rotates, so as to avoid interference with the material carrying seat 22 when the rotating seat 21 rotates. So locate drive assembly 40 frame 10 to be located the below of roating seat 21, compare in the mode of installing drive assembly 40 in roating seat 21, can only set up drive assembly 40 in the position of visual inspection mechanism 23 below, need not set up a drive assembly 40 to every year material seat 22 on roating seat 21, can reduce drive assembly 40's quantity, can simplify the structure of roating seat 21 and PCB check out test set, reduction in production cost, can alleviate the overall weight of roating seat 21 moreover.

In some embodiments, the material loading seat 22 has an abutting portion 223 below the rotating seat 21, the pushing structure 42 further includes a second seat 421 and an elastic member, the pushing member 422 is hinged to the second seat 421 and has a pushing portion 423, the pushing portion 423 gradually extends obliquely upward in the rotating direction of the rotating seat 21, and the elastic member abuts between the second seat 421 and the pushing member 422, so that when the rotating seat 21 rotates until the material loading seat 22 is located above the driving assembly 40, the pushing portion 423 abuts against the rear side of the abutting portion 223 to push the material loading seat 22 to move along the sliding track 211.

Specifically, the elastic member is in a compressed state and has an urging that urges the urging member 422 from the escape position toward the abutment position. When the rotary seat 21 rotates, the upper side of the pushing is inclined, so that the pushing portion 423 can be pushed down by the abutting portion 223 when the upper side of the pushing portion 423 is abutted, so that the pushing member 422 is at the escape position, and when the whole abutting portion 223 passes over the pushing portion 423, the pushing member 422 is automatically switched to the abutting position by the elastic member, so that the rear side of the abutting portion 223 can be abutted. After the rotary seat 21 stops rotating, the carrier seat 22 can be pushed to move along the sliding track 211 under the driving of the driving assembly 40. Therefore, the electric control structure is not needed to control the movement of the pushing piece 422, the structure is simple, the structure of the driving assembly 40 can be simplified, and the production cost of the PCB detection equipment is reduced. The elastic piece can be a compression spring, a shrapnel or a rubber block and the like. Of course, in other embodiments, a motor or cylinder may be provided on the drive assembly 40 to drive the pusher 422 between the abutment position and the retracted position.

In some embodiments, the PCB detecting apparatus further includes an elastic restoring member, where the elastic restoring member is connected to the rotating seat 21 and the material carrying seat 22, and the elastic restoring member is elastically deformed when the driving assembly 40 drives the material carrying seat 22 to move, and the elastic restoring member is used to drive the material carrying seat 22 to restore when the driving assembly 40 drives the pushing structure 42 to restore. In particular, the elastic restoring member may be a compression spring or an extension spring. When the driving assembly 40 drives the loading base 22 to move along the sliding track 211, the elastic reset member is in a compressed state or a stretched state, so as to have a tendency to drive the loading base 22 to reset. Thus, when the driving assembly 40 moves in the opposite direction to reset after the detection is completed, the material carrying seat 22 can also reset automatically under the action of the elastic reset piece. The structure of the material carrying seat 22 can be simplified with simple and reliable structure. Of course, in other embodiments, a magnet may be disposed at a position where the abutting portion 223 and the pushing portion 423 contact each other, so as to drive the loading base 22 to reset by the magnetic attraction between the abutting portion 223 and the pushing portion 423 when the driving unit 40 drives the pushing member 422 to reset.

In some embodiments, the material loading seat 22 includes a first seat 221 and a plurality of negative pressure suction heads 227, the first seat 221 is mounted on the sliding rail 211, two mounting rails 226 arranged side by side are provided on the first seat 221, each mounting rail 226 is provided with a plurality of negative pressure suction heads 227, the negative pressure suction heads 227 are used for connecting a negative pressure generating device to adsorb the PCB board on the material loading seat 22, the negative pressure suction heads 227 are provided with locking members 228, and the locking members 228 are used for fixing the negative pressure suction heads 227 on the mounting rails 226; the elastic restoring member is provided between the two mounting rails 226. The space between the two mounting rails 226 is used for mounting the elastic resetting piece, so that the space utilization rate on the material carrying seat 22 can be improved, the elastic resetting piece is arranged in the middle, the acting force of the elastic resetting piece on the material carrying seat 22 is consistent with the moving direction of the material carrying seat 22, the stress on two sides of the material carrying seat 22 is uniform, and the abrasion between the first seat body 221 and the sliding rail 211 can be reduced.

In some embodiments, the rotating seat 21 is provided with a yielding through hole 212, the yielding through hole 212 is in a strip shape extending along the length direction of the sliding rail 211, the sliding rail 211 is located between the yielding through hole 212 and the edge of the rotating seat 21, the material carrying seat 22 is provided with two connecting portions 224, one connecting portion 224 extends from the yielding through hole 212 to the lower portion of the rotating seat 21, the other connecting portion 224 extends from the outer side of the rotating seat 21 to the lower portion of the rotating seat 21, and the abutting portion 223 is connected to the two connecting portions 224. Specifically, the first base 221 includes a top plate 222 and a slider 225 mounted below the top plate 222, the slider 225 is mounted on the slide rail 211, and the mounting rail 226 is mounted above the top plate 222. The two connecting portions 224 are connected to the top plate 222, so that the top plate 222, the abutting portion 223 and the two connecting portions 224 form a frame structure, and the sliding rail 211 and the portion, located outside the yielding through hole 212, of the rotating seat 21 are sleeved with each other, so that when the pushing portion 423 abuts against the abutting portion 223, the whole load of the material carrying seat 22 can be uniform, moment generated when the material carrying seat 22 is pushed can be avoided, and abrasion between the first seat body 221 and the sliding rail 211 can be reduced.

In some embodiments, the drive assembly 40 is a linear motor 41. The structure is simple and reliable. Of course, in other embodiments, the drive assembly 40 may be a cylinder or the like.

In some embodiments, the rack 10 is further provided with at least two detecting positions, the rotating seat 21 is located below the two detecting positions, each detecting position is provided with a visual detecting mechanism 23, the visual detecting mechanism 23 of one detecting position comprises a dirt detecting camera 201, the visual detecting mechanism 23 of the other detecting position comprises a quality detecting camera 202, when the rotating seat 21 rotates, the plurality of material carrying seats 22 sequentially pass through the two detecting positions, the quality detecting camera 202 is located at the downstream of the dirt detecting camera 201, and a driving component 40 is arranged below each detecting position. When detecting, whether the dirt exists on the PCB is detected by the dirt detection camera 201, so that the dirt PCB can be screened out, the situation that the PCB is misjudged due to the dirt exists on the PCB can be avoided, and the detection accuracy of the PCB is improved. Alternatively, one of the visual detection mechanisms 23 of the detection bits comprises two soil detection cameras 201, and the other visual detection mechanism 23 of the detection bits comprises two quality detection cameras 202.

In some embodiments, the detection device 20 includes a visual detection mechanism 23, the visual detection mechanism 23 including a mount 231, a camera assembly 200, an adjustment assembly 233, and an illumination assembly 234, the camera assembly 200 being mounted to the mount 231; the adjusting assembly 233 comprises a first lifting module 2331, a traversing module 2332 and a rotating module 2333, wherein the traversing module 2332 is installed on the first lifting module 2331, one of the first lifting module 2331 and the traversing module 2332 is installed on the fixing frame 231, the other is installed on the rotating module 2333, and the light irradiation direction of the lighting assembly 234 is perpendicular to the rotating axis of the rotating module 2333; the illumination assembly 234 is mounted to the rotation module 2333, with the illumination assembly 234 being positioned laterally below the camera assembly 200.

Specifically, when the visual inspection mechanism 23 is mounted on the frame 10 for use, the traverse module 2332 may be extended in the longitudinal direction or the width direction of the slide rail 211, and the axis of the rotation module 2333 may be extended in the longitudinal direction or the width direction of the slide rail 211, and may be set according to practical situations. The first lifting module 2331, the traversing module 2332 and the rotating module 2333 may be electrically driven (e.g., driven by a motor) or manually adjustable (e.g., driven by a knob and a screw-nut pair).

According to the technical scheme of the utility model, the lighting component 234 is arranged on the rotating module 2333, the rotating module 2333 is arranged on the fixing frame 231 through the traversing module 2332 and the first lifting module 2331, and the light irradiation direction of the lighting component 234 is perpendicular to the rotating axis of the rotating module 2333. Thus, while the illumination can be gradually lifted and horizontally moved, the illumination assembly 234 can be rotated, so that the light irradiation direction of the illumination assembly 234 can be adjusted, and the adjustment freedom of the illumination assembly 234 is high. The state of the illumination component 234 can be adjusted according to the actual illumination condition during use, the installation of the visual detection mechanism 23 can be flexible, the installation can be flexible according to the mechanism of the PCB detection equipment, and the use flexibility of the visual detection mechanism 23 is greatly improved.

In some embodiments, the visual inspection mechanism 23 further includes a second lifting module 235, the second lifting module 235 is disposed on the fixing frame 231, and the camera assembly 200 is mounted on the second lifting module 235. This allows the height of the camera assembly 200 to be adjusted to facilitate device debugging and adjustment of the camera assembly 200 to a proper position.

In some embodiments, the second lifting module 235 is mounted on the fixing frame 231 through the mounting plate 232, the mounting plate 232 is provided with a first mounting hole 2321, the first mounting hole 2321 is in a strip shape extending along the horizontal direction, a threaded fastener is arranged in the first mounting hole 2321, and the mounting plate 232 is mounted at the first mounting hole 2321 through the threaded fastener, so that the position of the second lifting module 235 in the horizontal direction is adjustable. In particular, the threaded fastener may be a bolt or a screw, so that the structure is simple and the structure of the visual inspection mechanism 23 may be simplified while the position of the camera assembly 200 is adjusted.

In some embodiments, the lighting assembly 234 includes two lighting lamps 2341, and an adjusting assembly 233 is disposed on the fixing frame 231 corresponding to each lighting lamp 2341, and each lighting lamp 2341 is correspondingly mounted on a rotating module 2333 of one adjusting assembly 233; the two illumination lamps 2341 are separately provided at opposite sides of the camera assembly 200, or the two illumination lamps 2341 are provided side by side at the same side of the camera assembly 200. So set up, can promote the illuminating effect, when locating the relative both sides of camera subassembly 200 with two light 2341 branch, can promote the illumination homogeneity, further promote the illuminating effect.

In other embodiments, the illumination assembly 234 includes three illumination lamps 2341, wherein two illumination lamps 2341 are disposed on opposite sides of the camera assembly 200, and another illumination lamp 2341 is disposed on a third side of the camera assembly 200. So set up, can further promote the lighting effect.

In some embodiments, the rack 10 is provided with at least two detection bits; the PCB detection equipment further comprises a detection seat assembly, the detection seat assembly comprises a rotary seat 21 and a plurality of material carrying seats 22, the rotary seat 21 is rotatably arranged on the frame 10 and positioned below the two detection positions, the plurality of material carrying seats 22 are all arranged on the rotary seat 21 and are distributed around the rotation axis of the rotary seat 21, and when the rotary seat 21 rotates, the plurality of material carrying seats 22 sequentially pass through the two detection positions; each detection position is provided with a visual detection mechanism 23, and in the rotation direction of the rotating seat 21, the visual detection mechanism 23 positioned at the upstream is used for detecting the dirt condition on the PCB, and the visual detection mechanism 23 positioned at the downstream is used for detecting the quality condition of the PCB detected by the visual detection mechanism 23 at the upstream. That is, in the rotation direction of the rotating base 21, the camera assembly 200 of the visual inspection mechanism 23 located upstream is the stain detection camera 201, and the camera assembly 200 of the visual inspection mechanism 23 located downstream is the quality detection camera 202. The structures of the rotating base 21 and the material carrying base 22 can be referred to the above embodiments, and will not be described in detail herein. In some embodiments, the detection device 20 includes a detection seat assembly, a visual detection mechanism 23, and a drive assembly 40.

In some embodiments, the PCB inspection apparatus is provided with two inspection seat assemblies, two visual inspection mechanisms 23 are disposed above the rotary table of each inspection seat assembly, the PCB inspection apparatus further includes a turn-over transfer mechanism 50, the turn-over transfer mechanism 50 is disposed between the two inspection seat assemblies, and the turn-over transfer mechanism 50 is used for turning over and transferring the PCB board inspected by the previous inspection seat assembly to the next inspection seat assembly.

The foregoing description is only of the preferred embodiments of the present utility model and is not intended to limit the scope of the utility model, and all equivalent structural changes made by the description of the present utility model and the accompanying drawings or direct/indirect application in other related technical fields are included in the scope of the utility model.

Claims

1. A PCB inspection apparatus, comprising:

2. The PCB inspection apparatus of claim 1, wherein the number of carriers is four, the frame is further provided with a center shift, wherein when the rotation of the rotation base is stopped, two of the carriers are respectively located below two of the inspection positions, another of the carriers is adjacent to the loading position, and the last of the carriers is adjacent to the center shift.

3. The PCB inspection apparatus of claim 2, wherein the swivel base is square in configuration, and one of the carriers is provided for each side position of the swivel base.

4. The PCB inspection apparatus of claim 1, wherein the carrier base includes a first base body and a negative pressure suction head mounted on the first base body, the negative pressure suction head being disposed upwardly, the negative pressure suction head being adapted to be connected to a negative pressure generating device to adsorb the PCB onto the carrier base.

5. The PCB inspection apparatus of claim 4, wherein the carrier base includes a plurality of the suction heads, the first base body has a mounting rail, the suction heads are slidably mounted on the mounting rail, and the suction heads have locking members for fixing the suction heads on the mounting rail.

6. The PCB inspection apparatus of claim 5, wherein the first housing has two mounting rails disposed side by side, each of the mounting rails having a plurality of the negative pressure suction heads disposed thereon.

7. The PCB inspection apparatus of claim 2, wherein the rotating base is provided with a plurality of sliding rails, the sliding rails are sequentially arranged end to end along a circumferential direction of the rotating base, each of the carrier bases is correspondingly mounted on one of the sliding rails, the PCB inspection apparatus further comprises at least two driving assemblies mounted on the frame or the rotating base, and the driving assemblies are connected with the carrier bases and are used for driving the carrier bases below the inspection positions to move along the sliding rails, so that the quality inspection camera and the dirt inspection respectively sweep the PCB on the carrier bases.

8. The PCB inspection apparatus according to any one of claims 1 to 7, wherein the number of the inspection devices is two, the PCB inspection apparatus further comprising a turn-over transfer mechanism provided between the two inspection devices, the turn-over transfer mechanism being for turning over and transferring the PCB inspected by the previous inspection device to the next inspection device.

9. The PCB inspection apparatus of any one of claims 1 to 7, further comprising a loading robot, a loading rack and an empty tray rack, the rack further provided with a loading level, the loading rack being slidably mounted at the loading level, the loading rack being for placing a tray loaded with PCB boards; the empty tray frame is slidably arranged at the feeding level and is arranged side by side with the feeding frame; the feeding manipulator is arranged on the frame and is positioned above the feeding level, the feeding manipulator is used for taking a PCB (printed Circuit Board) in the feeding frame to transfer towards the detection device, and the feeding manipulator is also used for transferring an empty tray on the feeding frame to the empty tray frame.

10. The PCB inspection apparatus of claim 9, further comprising a relay mechanism including a placement base mounted between the loading level and the rotation base, the placement base having a placement position for placement of a PCB, and a relay manipulator movably mounted above the placement base for movement between the placement base and the inspection device;

The feeding manipulator is used for transferring the PCB in the feeding level to the placing seat, and the transfer manipulator is used for transferring the PCB on the placing seat to the detection device.