CN219179204U

CN219179204U - PCB detection equipment

Info

Publication number: CN219179204U
Application number: CN202223591455.4U
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 frame, a detection device, a feeding frame, a discharging frame, a feeding manipulator and a discharging manipulator, wherein the frame is provided with a feeding opening, a discharging opening, a feeding level and a discharging level, the feeding opening and the discharging opening are arranged on the same side of the frame side by side, the feeding level is arranged on the inner side of the feeding opening, and the discharging level is arranged on the inner side of the discharging opening. The detection device is arranged on the frame and is positioned at one side of the feeding level far away from the feeding opening; the feeding frame is slidably arranged at the feeding level through the feeding opening; the blanking frame is slidably arranged at the blanking level through the blanking opening; the feeding manipulator is arranged on the frame and located above the feeding level, and the feeding manipulator is used for transferring the PCB in the feeding frame to the detection device for detection. The blanking manipulator is arranged on the frame and is positioned above the blanking level, and the blanking manipulator is used for transferring the qualified PCB detected by the detection device to the blanking frame. The technical scheme of the utility model can reduce the occupied space of the PCB detection equipment.

Description

PCB detection equipment

Technical Field

The utility model relates to the technical 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, defect inspection needs to be performed on the front and back surfaces of the PCB boards in the production process. In some current PCB detecting apparatuses, a loading level is set at the front side of the PCB detecting apparatus, a unloading level is set at the rear side, and the loading and unloading generally need to be manually operated, so that the front side and the rear side of the PCB detecting apparatus are required to have enough operation space for the movement of the staff. This can lead to large footprint for the PCB inspection apparatus and is inconvenient in situations where space is limited or where space constraints are placed on the apparatus layout.

Disclosure of Invention

The utility model mainly aims to provide a PCB detection device, which aims to reduce the occupied space of the PCB detection device.

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

the machine frame is provided with a feeding opening, a discharging opening, a feeding level and a discharging level, wherein the feeding opening and the discharging opening are arranged on the same side of the machine frame side by side, the feeding level is arranged on the inner side of the feeding opening, and the discharging level is arranged on the inner side of the discharging opening;

The detection device is arranged on the frame and is positioned at one side of the feeding level far away from the feeding opening;

the feeding frame is slidably arranged at the feeding level through the feeding opening;

the blanking frame is slidably arranged at the blanking level through the blanking opening;

the feeding manipulator is arranged on the rack and is positioned above the feeding level, and the feeding manipulator is used for transferring the PCB in the feeding rack to the detection device for detection; and

and the blanking manipulator is arranged on the frame and positioned above the blanking level, and is used for transferring the qualified PCB detected by the detection device to the blanking frame.

Optionally, the PCB detection apparatus further includes an empty tray frame, the empty tray frame is slidably mounted on the feeding level through the feeding opening, and is arranged side by side with the feeding frame, and the feeding manipulator is further configured to transfer an empty tray on the feeding frame to the empty tray frame.

Optionally, the feeding level is provided with a first lifting mechanism, the first lifting mechanism is provided with a first bracket, the bottom of the feeding frame is provided with a first avoidance position, and the first bracket can extend into the feeding frame through upward movement of the first avoidance position so as to jack up a tray in the feeding frame; the feeding level is provided with a second lifting mechanism, the second lifting mechanism is provided with a second bracket, the bottom of the empty tray frame is provided with a second avoidance position, and the second bracket can move upwards through the second avoidance position to extend into the empty tray frame so as to jack up a tray in the feeding frame.

Optionally, the PCB check out test set still includes transfer mechanism, transfer mechanism is including placing seat and first manipulator, place the seat install in go up the material level with between the detection device, place the seat and be equipped with the position of placing, place the position and be used for supplying the PCB board to place, first manipulator movably install in place the seat top for place the seat with remove between the detection device, the material loading manipulator is used for with the PCB board in the material loading material level shifts to place the seat, first manipulator is used for with PCB board on the seat shifts to detection device.

Optionally, the PCB detection apparatus further includes a tray rack, the tray rack is slidably mounted on the blanking level through the blanking opening and is disposed side by side with the blanking rack, the tray rack is used for stacking and placing a plurality of empty trays, and the blanking manipulator is further used for transferring the empty trays in the tray rack to the blanking rack.

Optionally, the frame still is equipped with the material taking mouth and is located the inside NG material level of material taking mouth, the unloading manipulator still is used for will pass through the unqualified PCB board after detection device detects to the NG material level, the material taking mouth the material loading opening with the unloading opening is located the same side of frame, just the material taking mouth is located the material loading opening with between the unloading opening.

Optionally, the PCB check out test set still includes well swivel mount and second manipulator, the swivel mount is located down the material level with between the detection device, the swivel mount is used for supplying the PCB board to place, the second manipulator movably install in well swivel mount top is used for in the swivel mount with remove between the detection device, in order to pass through PCB board after the detection device detects shifts to the swivel mount, the unloading manipulator is used for with pass through on the swivel mount qualified PCB board shifts to in the charging tray of unloading work or material rest, the unloading manipulator is still used for with disqualified PCB board on the swivel mount shifts to the NG material level.

Optionally, the transfer seat includes a first seat body, a driving component and two turnover plates, wherein the two turnover plates are arranged side by side, one side, adjacent to each other, of each turnover plate is rotatably installed on the first seat body, each turnover plate has a horizontal state in which each turnover plate is horizontally placed and a vertical state in which each turnover plate is vertically placed, in the vertical state, the two turnover plates are mutually close to each other, so that the two PCBs on the two turnover plates are vertically lifted and mutually attached, and the driving component is installed on the first seat body and is in driving connection with the two turnover plates to drive the two turnover plates to switch between the horizontal state and the vertical state; the blanking manipulator is provided with a clamp, and the clamp is used for clamping two PCB boards between two turnover boards in the standing state.

Optionally, the unloading manipulator still is equipped with negative pressure and absorbs the structure, negative pressure is absorbed the structure with the anchor clamps interval, works as the second manipulator is placed be on the upset board when unqualified PCB board under the horizontality, the unloading manipulator is used for through negative pressure absorbs the structure absorbs unqualified PCB board on the upset board, and shifts to NG material level.

Optionally, the second manipulator has two material taking components for take two PCB boards simultaneously, and place in two the upset board, the transfer seat still is equipped with temporary storage, temporary storage with the upset board is parallel, and the interval sets up.

Optionally, the detection device includes roating seat, a plurality of year material seat, dirty detection camera and quality detection camera, the roating seat rotationally install in the frame, and be located go up one side of material level, the frame still is equipped with two at least detection positions, the roating seat is located two detect the position below, a plurality of year material seat all install in the roating seat, and encircle the rotation axis of roating seat is arranged when the roating seat is rotatory, a plurality of year material seat passes through two in proper order detect the position, dirty detection camera install in one of them detect the position, and towards being located detect the position below carry the material seat setting, quality detection camera install in another detect the position, and towards being located detect the position below carry the material seat setting, quality detection camera is located dirty detection camera's low reaches.

Optionally, the detecting device includes a rotating seat, a visual detecting mechanism and a plurality of material carrying seats, the rotating seat is rotatably installed on the frame, a plurality of sliding rails are arranged on the rotating seat, the sliding rails are sequentially arranged in a head-to-tail manner along the circumferential direction of the rotating seat, each material carrying seat is correspondingly installed on one sliding rail, and the visual detecting mechanism is arranged above the rotating seat and is downwards arranged; the PCB detection equipment further comprises a driving mechanism, wherein the driving mechanism is arranged on the rack or the rotating seat, and the driving mechanism is connected with the material carrying seat and is used for driving the material carrying seat to move relative to the visual detection mechanism so that the visual detection mechanism sweeps the PCB on the material carrying seat.

According to the technical scheme, the feeding opening, the discharging opening, the feeding level and the discharging level are formed in the frame, the feeding frame and the feeding manipulator are arranged at the feeding level to realize feeding, the discharging frame and the discharging manipulator are arranged at the discharging level to realize discharging, and the feeding opening and the discharging opening are arranged on the same side of the frame side by side, so that a worker can realize feeding of a PCB to be tested and discharging of the detected PCB on the same side of the PCB detection device, the space requirement of the PCB detection device is reduced, the occupied space of the PCB detection device can be reduced, and the PCB detection device can be conveniently used under the condition of limited space or space limitation on the layout of the device.

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 diagram of a PCB inspection apparatus according to an embodiment of the present utility model;

FIG. 2 is an enlarged view of FIG. 1 at A;

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

FIG. 4 is an enlarged view at B in FIG. 3;

FIG. 5 is a schematic view of the structure of the rotary base in FIG. 4;

FIG. 6 is a schematic view of the material loading seat in FIG. 4;

FIG. 7 is a schematic diagram of the driving mechanism of FIG. 4;

FIG. 8 is a schematic view of the PCB inspection device of FIG. 1 at another angle;

FIG. 9 is a schematic view of the PCB inspection device of FIG. 8 at the loading and unloading level;

FIG. 10 is a schematic structural view of the discharging manipulator in FIG. 9;

FIG. 11 is a schematic view of the second robot and the middle swivel mount of FIG. 9.

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.

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 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 11, the PCB detecting apparatus includes a frame 10, a detecting device 20, a feeding frame 121, a discharging frame 131, a feeding manipulator 18 and a discharging manipulator 19, where the frame 10 is provided with a feeding opening 101, a discharging opening 102, a feeding level 12 and a discharging level 13, the feeding opening 101 and the discharging opening 102 are arranged on the same side of the frame 10 side by side, the feeding level 12 is arranged on the inner side of the feeding opening 101, and the discharging level 13 is arranged on the inner side of the discharging opening 102. The detection device 20 is arranged on the frame 10 and is positioned on one side of the feeding level 12 away from the feeding opening 101; the feeding frame 121 is slidably mounted on the feeding level 12 through the feeding opening 101; the blanking frame 131 is slidably mounted on the blanking level 13 through the blanking opening 102; the feeding manipulator 18 is installed on the frame 10 and located above the feeding level 12, and the feeding manipulator 18 is used for transferring the PCB board in the feeding frame 121 to the detection device 20 for detection. The blanking manipulator 19 is installed on the frame 10 and located above the blanking level 13, and the blanking manipulator 19 is used for transferring the qualified PCB board detected by the detecting device 20 to the blanking frame 131.

In use, the loading frame 121 may be pulled out from the loading opening 101, and the loading frame 121 may be pushed into the loading position 12 after the tray with the PCB board is placed in the loading frame 121. The feeding manipulator 18 transfers the PCB board of the feeding frame 121 to the detection device 20 for detection. After the detection by the detection device 20 is completed, the qualified PCB is transferred to the blanking frame 131 through the blanking machine, and after the blanking frame 131 is filled with the qualified PCB, the blanking frame 131 is drawn out, so that the qualified PCB can be taken out.

According to the technical scheme, the frame 10 is provided with the feeding opening 101, the discharging opening 102, the feeding level 12 and the discharging level 13, the feeding level 12 is provided with the feeding frame 121 and the feeding manipulator 18 to realize feeding, the discharging level 13 is provided with the discharging frame 131 and the discharging manipulator 19 to realize discharging, and the feeding opening 101 and the discharging opening 102 are arranged on the same side of the frame 10 side by side, so that a worker can realize feeding of a PCB to be tested and discharging of the detected PCB on the same side of the PCB detection device, the space requirement of the PCB detection device is reduced, namely the occupied space of the PCB detection device (namely the space occupied by the PCB detection device and the space required by operating the PCB detection device) can be reduced, and the PCB detection device can be conveniently used under the condition of limited space or space limitation on the layout of the device.

After the detection by the detection device 20 is completed, if the unqualified PCB is found, when the unqualified PCB moves to the material taking position of the blanking manipulator 19, the unqualified PCB is transferred to the NG material level 11 by the blanking manipulator 19 (because the PCB has an identification code, the identification code can be scanned and positioned by the code scanner before the detection, and therefore, the blanking can be distinguished). For qualified PCB boards, the blanking robot 19 is placed in the tray of the blanking rack 131. After all trays in the blanking frame 131 are full, the blanking frame 131 is drawn out, and the qualified PCB can be taken out. When the NG level 11 is full, the reject PCB may be removed through the second opening.

In some embodiments, the PCB detection apparatus further comprises an empty tray 122, the empty tray 122 being slidably mounted on the loading level 12 through the loading opening 101 and being arranged side by side with the loading tray 121, and the loading robot 18 further being configured to transfer empty trays on the loading tray 121 to the empty tray 122. Specifically, during loading, the loading frame 121 may be pulled out from the loading opening 101, a plurality of trays containing PCB boards may be stacked and placed in the loading frame 121, and then the loading frame 121 may be pushed into the loading position 12. Before the detection, the empty tray 122 is in an empty state, and when all the PCBs in the upper tray of the loading rack 121 are taken out, the empty tray is transferred to the empty tray 122 by the loading manipulator 18, so that the PCBs 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 122, the empty tray 122 can be pulled out of the loading opening 101, and the empty tray is taken out and pushed into the loading level 12 through the empty tray, so as to continuously receive the empty tray. Thus, a plurality of trays can be placed in the feeding frame 121 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 the structure of the feeding position 12 can be simplified by realizing feeding and transferring of the empty trays by one feeding manipulator 18, so that the structure of the PCB detection device is simplified, and the production cost and the maintenance cost of the PCB detection device can be reduced.

In some embodiments, the loading robot 18 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 18 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.

Wherein, can set up vacuum chuck on the material loading manipulator 18 and absorb PCB board and empty charging tray and shift, also can shift through anchor clamps 195 centre gripping PCB board and empty charging tray.

In some embodiments, the PCB inspection apparatus further includes a first visual positioning device mounted to the frame 10 above the loading level 12, the first visual positioning device being disposed toward the loading level 12 for detecting a position of the PCB board in the loading rack 121. Specifically, the first visual positioning device comprises a mounting frame and a CCD camera (CCD: charge coupled device charge coupled device) mounted on the mounting frame, so that the position and the state of the PCB mounted on the tray can be photographed in real time, and the feeding manipulator 18 can accurately take the PCB in the tray. Of course, in other embodiments, the first visual positioning device may also employ a CMOS camera (CMOS: complementary Metal-Oxide-Semiconductor complementary metal Oxide Semiconductor). In addition, in other embodiments, the trays may be of the same size, and the material taking path of the feeding manipulator 18 may be preset, so that the feeding manipulator 18 may be installed with a predetermined program to take the PCB board on the tray.

In some embodiments, the feeding level 12 is provided with a first lifting mechanism 141, the first lifting mechanism 141 is provided with a first bracket, the bottom of the feeding frame 121 is provided with a first avoidance position, and the first bracket can extend into the feeding frame 121 through upward movement of the first avoidance position so as to jack up a tray in the feeding frame 121. Specifically, the first lifting mechanism 141 further includes a driving structure and at least one lifting slide rail, the lifting slide rail is mounted on the frame 10 and extends in the up-down direction, the first bracket is slidably mounted on the lifting slide rail, and the driving structure is mounted on the frame 10 and is connected with the first bracket, so that the first bracket can be driven to move up and down by the driving structure. After the loading manipulator 18 moves the empty tray at the uppermost layer of the loading frame 121 away, the first bracket can be driven by the driving structure to move upwards, so that the remaining trays are moved upwards, and the uppermost tray can be always at the same height, so that the loading manipulator 18 can position and take the PCB. Among them, the structure of the driving structure is various, for example, the driving structure includes a motor and a transmission structure (a rack-and-pinion structure or a lead screw nut pair) or the driving structure includes an air cylinder or a hydraulic cylinder. Of course, in other embodiments, the first elevating mechanism 141 may not be provided.

In some embodiments, the loading level 12 is further provided with a second lifting mechanism, the second lifting mechanism is provided with a second bracket, the bottom of the empty tray frame 122 is provided with a second avoidance position, and the second bracket can move upwards through the second avoidance position to extend into the empty tray frame 122 so as to jack up the tray in the loading frame 121. Specifically, when the empty tray is not placed in the empty tray frame 122, the second bracket is located at the upper portion of the empty tray frame 122, and when the loading manipulator 18 places the empty tray in the loading frame 121 into the empty tray frame 122, the second bracket moves down, so that the loading manipulator 18 places the empty tray in the empty tray frame 122 at the same height position, so that the paths of transferring the empty tray by the loading manipulator 18 each time are uniform, which is beneficial to improving the loading efficiency. The specific structure of the second lifting mechanism may refer to the structure of the first lifting mechanism 141, which is not described herein. In addition, in other embodiments, the second lifting mechanism may not be provided.

In some embodiments, the upper ends and the lower ends of the lifting slide rails of the first lifting mechanism 141 and the second lifting mechanism are respectively provided with a limit sensor, the PCB detection device further comprises a controller, the limit sensors are electrically connected with the controller, and when the limit sensor at the upper end detects the first bracket (the second bracket), the first bracket (the second bracket) is indicated to have moved to the highest position, and at this time, the first lifting mechanism 141 (the second lifting mechanism) can be controlled by the controller to stop working. And when the limit sensor at the lower end detects the first bracket (the second bracket), it indicates that the first bracket (the second bracket) has moved to the bottommost position, and at this time, the first lifting mechanism 141 (the second lifting mechanism) can be controlled by the controller to stop working.

In some embodiments, the PCB detection apparatus further comprises a transfer mechanism 50, the transfer mechanism 50 comprises a placement base 51 and a first manipulator 52, the placement base 51 is installed between the loading level 12 and the detection device 20, the placement base 51 is provided with a placement position for placing a PCB, the first manipulator 52 is movably installed above the placement base 51 for moving between the placement base 51 and the detection device 20, the loading manipulator 18 is used for transferring the PCB in the loading level 12 to the placement base 51, and the first manipulator 52 is used for transferring the PCB on the placement base 51 to the detection device 20.

During operation, the PCB is taken from the tray of the loading level 12 through the loading manipulator 18, after the PCB is placed in the placement position of the placement seat 51, the loading manipulator 18 returns to the loading level 12 to continue taking the PCB, and meanwhile, the first manipulator 52 moves to the placement position to take the PCB, and then the PCB is moved to the detection device 20. Thus, the feeding stroke of the feeding manipulator 18 can be shortened, the size of the feeding manipulator 18 can be reduced, and the structure is simplified. And the position of putting of PCB board in the charging tray is usually comparatively random, and rethread material loading manipulator 18 removes the PCB board behind the seat 51 of placing of transfer mechanism 50, can also be convenient for fix a position the PCB board to make first manipulator 52 can 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 122 and the feeding frame 121 are disposed at the feeding level 12, after the last or last group of PCB boards on the tray are transferred to the transfer mechanism 50 by the feeding manipulator 18, when the first manipulator 52 transfers the PCB boards on the placement seat 51, the feeding manipulator 18 can carry the empty tray in the feeding frame 121 to the empty tray frame 122, so that the movement stroke of the feeding manipulator 18 is shortened, the feeding manipulator 18 can carry the empty tray to the empty tray frame 122 more quickly, the waiting time of the detection device 20 is also reduced, and the feeding efficiency of the PCB detection device is improved.

In some embodiments, the placing seat 51 is provided with first guide rails 511 on two opposite sides of the placing position, the first guide rails 511 extend along the direction of the loading level 12 pointing to the detecting device 20, the first manipulator 52 includes a first support arm 521, a first lifting component 522 mounted on the first support arm 521, and a material taking structure 523 mounted on the first lifting component 522, one end of the first support arm 521 is slidably mounted on one of the first guide rails 511, and the other end is slidably mounted on the other first guide rail 511 and located above the placing position. Specifically, the transfer mechanism 50 further includes a first driving member 53, where the first driving member 53 is mounted on one of the placement base 51 and the first support arm 521 and is in driving connection with the other to drive the first support arm 521 to move along the first guide 511. The first support arm 521 has a material taking position moving to a position right above the placement position and a material unloading position moving to a position above the receiving position of the detecting device 20, when the first support arm 521 moves to the material taking position, the material taking structure 523 can be driven to move downwards by the first lifting component 522 so as to take the PCB board from the placement position, and after the PCB board is taken, the material taking structure 523 and the PCB board are driven to move upwards by the first lifting component 522 so as to leave the open position. And then moves to the unloading position under the driving of the first driving member 53, and at this time, the material taking structure 523 is driven to move downward by the first lifting assembly 522, so as to place the PCB board at the receiving position of the detecting device 20. Compared with the first manipulator 52, the six-axis mechanical arm 191 is adopted, so that the structure of the first manipulator 52 is simple, and the process of transferring the PCB from the placement position to the detection device 20 is stable.

In some embodiments, the first lift assembly 522 includes a first lift cylinder mounted to the first support arm 521 and a first connector mounted to a piston rod of the first lift cylinder and coupled to the take out structure 523. The first driving member 53 of the first lifting assembly 522 is acted by the air cylinder, so that the structure of the first lifting assembly 522 can be simplified, and the cost can be reduced. Of course, in other embodiments, the first lift assembly 522 includes an electric cylinder mounted to the first support arm 521 and a first connector mounted to the push rod of the electric cylinder and coupled to the take-off structure 523.

In some embodiments, the PCB detecting apparatus further includes a tray rack 132 slidably mounted on the blanking level 13 through the blanking opening 102 and disposed side by side with the blanking rack 131, the tray rack 132 is used for stacking a plurality of empty trays, and the blanking robot 19 is further used for transferring the empty trays in the tray rack 132 into the blanking rack 131. The blanking manipulator 19 is further used for transferring the PCB board detected by the detecting device 20 to an empty tray of the blanking frame 131. That is, when in use, the empty tray on the upper layer of the tray rack 132 is taken by the blanking manipulator 19, and is transferred to the blanking rack 131, and then the PCB board detected by the detecting device 20 is transferred to the empty tray of the blanking rack 131. When the trays in the discharging frame 131 are filled with the PCB boards, empty trays are taken from the tray frame 132 and stacked above the full trays in the discharging frame 131.

In some embodiments, the discharging level 13 is provided with a third lifting mechanism 143, the third lifting mechanism 143 is provided with a third bracket, the bottom of the discharging frame 131 is provided with a third avoidance position, and the third bracket can extend into the discharging frame 131 through upward movement of the third avoidance position so as to jack up a tray in the discharging frame 131. Specifically, the third lifting mechanism 143 further includes a driving structure and at least one lifting slide rail, the lifting slide rail is mounted on the frame 10 and extends in the up-down direction, the third bracket is slidably mounted on the lifting slide rail, and the driving structure is mounted on the frame 10 and is connected to the third bracket, so that the third bracket can be driven to move up and down by the driving structure. When empty trays are not placed in the upper material rack 121, the third bracket is positioned on the upper portion of the lower material rack 131, the empty trays in the tray rack 132 are placed in the lower material rack 131 along with the lower material manipulator 19, the driving structure drives the third bracket to move downwards gradually so as to ensure that the uppermost tray is always positioned at the same height position, and thus the lower material manipulator 19 always places the detected PCB in the tray of the lower material rack 131 at the same height position, and the lower material manipulator 19 is convenient to position and place the PCB, thereby being beneficial to improving the lower material efficiency. In addition, in other embodiments, the third elevating mechanism 143 may not be provided.

In some embodiments, the discharging level 13 is provided with a fourth lifting mechanism 144, the fourth lifting mechanism 144 is provided with a fourth bracket, the bottom of the tray frame 132 is provided with a fourth avoidance position, and the fourth bracket can move upwards through the fourth avoidance position to extend into the tray frame 132 so as to jack up the tray in the discharging frame 131. Similarly, the fourth lifting mechanism 144 can enable the empty tray at the uppermost layer in the tray rack 132 to be always at the same height position, so that the blanking manipulator 19 takes the empty tray at the same height position, the paths of transferring the empty tray each time by the blanking manipulator 19 are unified, and the blanking efficiency is improved. The specific structure of the fourth lifting mechanism 144 may refer to the structure of the third lifting mechanism 143, which is not described herein. In addition, in other embodiments, the fourth elevating mechanism 144 may not be provided.

In some embodiments, the rack 10 is further provided with a material taking opening 103 and an NG material level 11 located inside the material taking opening 103, the blanking manipulator 19 is further used for transferring the unqualified PCB board detected by the detection device 20 to the NG material level 11, the material taking opening 103, the material feeding opening 101 and the material blanking opening 102 are arranged on the same side of the rack 10, and the material taking opening 103 is arranged between the material feeding opening 101 and the material blanking opening 102. Specifically, after the detection by the detection device 20 is completed, if the unqualified PCB board is found, when the unqualified PCB board moves to the material taking position of the blanking manipulator 19, the unqualified PCB board is transferred to the NG material level 11 by the blanking manipulator 19 (since the PCB board has an identification code, the identification code can be scanned and positioned by the code scanner before the detection, so that the blanking can be distinguished). For qualified PCB boards, the blanking robot 19 is placed in the tray of the blanking rack 131. After all trays in the blanking frame 131 are full, the blanking frame 131 is drawn out, and the qualified PCB can be taken out. When the NG level 11 is full, the reject PCB may be removed through the take out port 103.

So utilize a unloading manipulator 19 to realize qualified PCB board unloading (will pass through the qualified PCB board of detection device 20 after detecting and shift to the charging tray of unloading frame 131) and unqualified PCB board unloading (will pass through the unqualified PCB board of detection device 20 after detecting and shift to NG material level 11), reduced the quantity of manipulator, both can simplify the structure of PCB check out test set, can also make unloading level 13 and NG material level 11 arrange compactly, can promote PCB check out test set compact structure, be favorable to reducing PCB check out test set's overall dimension. And the material taking opening 103, the material loading opening 101 and the material unloading opening 102 are arranged on the same side of the frame 10, so that workers can take materials of qualified products and unqualified products on the same side of the PCB detection equipment, the space requirement of the PCB detection equipment can be reduced, and the occupied space of the PCB detection equipment can be reduced.

In some embodiments, the PCB detecting apparatus further includes a middle rotating seat 31 and a second manipulator 32, the middle rotating seat 31 is disposed between the blanking level 13 and the detecting device 20, the middle rotating seat 31 is used for placing a PCB, the second manipulator 32 is movably installed above the middle rotating seat 31 and is used for moving between the middle rotating seat 31 and the detecting device 20 to transfer the PCB detected by the detecting device 20 to the middle rotating seat 31, the blanking manipulator 19 is used for transferring qualified PCBs on the middle rotating seat 31 to a tray of the blanking frame 131, and the blanking manipulator 19 is further used for transferring unqualified PCBs on the middle rotating seat 31 to the NG level 11.

During operation, the second manipulator 32 is used for taking the detected PCB on the detection device 20, and after the PCB is moved to the transfer seat 31, the second manipulator 32 returns to the detection device 20 to continue taking the next PCB, meanwhile, the blanking manipulator 19 is moved to the transfer seat 31 to take the PCB, if the PCB on the transfer seat 31 is a qualified product, the blanking manipulator 19 transfers the qualified PCB to the tray of the blanking frame 131, and if the PCB on the transfer seat 31 is a unqualified product, the blanking manipulator 19 transfers the unqualified PCB to the NG material level 11. In this way, the feeding stroke of the feeding manipulator 18 can be shortened, the production takt can be increased, the size of the discharging manipulator 19 can be reduced, and the structure can be simplified. And after the PCB is moved to the transfer seat 31 by the second manipulator 32, the positioning of the PCB can be facilitated.

In some embodiments, the middle rotating seat 31 includes a first seat body 311, a driving component 312 and two turnover plates 313, the two turnover plates 313 are arranged side by side, and one side of each of the two turnover plates 313 adjacent to each other is rotatably installed on the first seat body 311, the two turnover plates 313 have a horizontal state in which each of the two turnover plates is horizontally placed and an erect state in which each of the two turnover plates 313 is vertically placed, in the erect state, the two turnover plates 313 are close to each other so that the PCBs on the two turnover plates 313 are vertically erected and are mutually attached, and the driving component 312 is installed on the first seat body 311 and is in driving connection with the two turnover plates 313 so as to drive the two turnover plates 313 to switch between the horizontal state and the erect state; the discharging robot 19 is provided with a clamp 195, and the clamp 195 is used for clamping two PCB boards between the two flipping boards 313 in the erected state.

Specifically, the tray in the blanking frame 131 is provided with a plurality of slots, and the blanking manipulator 19 inserts the qualified PCB board in the slots of the tray. When the second robot 32 takes the PCB from the inspection apparatus 20 and moves above the flipping plates 313, the two flipping plates 313 are in a horizontal state for the PCB to be placed. When the PCBs placed on the two turnover plates 313 are qualified, the driving assembly 312 drives the sides, away from each other, of the two turnover plates 313 to turn upwards, so that when the two turnover plates 313 are in the standing state, the two PCBs are mutually attached together in the standing state, and the two PCBs can be clamped by the clamp 195 on the blanking manipulator 19 and transferred into the slots of the tray. Compared with the mode of placing the PCB horizontally in the material tray, the occupied space of each PCB in the material tray can be reduced, so that the material tray can be used for placing more PCBs, the condition that the PCB needs to be converted into the cocked state after the blanking manipulator 19 takes the PCB in the horizontal state can be avoided, and the blanking manipulator 19 is convenient to take the cocked PCB. The drive assembly 312 may be driven by a motor (e.g., a motor and gear set transmission) or a rotary cylinder. In addition, in other embodiments, the discharging manipulator 19 may take the PCB horizontally placed on the transfer seat 31 and place it in the tray, i.e. no overturning plate 313 is provided.

In some embodiments, the blanking manipulator 19 is further provided with a negative pressure suction structure 192, the negative pressure suction structure 192 is spaced from the clamp 195, and when the second manipulator 32 is placed on the flipping plate 313 and is a defective PCB, in a horizontal state, the blanking manipulator 19 is configured to suck the defective PCB on the flipping plate 313 through the negative pressure suction structure 192 and transfer to the NG level 11. Specifically, the NG level 11 is provided with an NG tray for receiving reject PCB boards. The blanking manipulator 19 sucks the unqualified PCB board placed horizontally on the turnover plate 313 through the negative pressure suction structure 192, and places the unqualified PCB board in the tray of the NG material level 11. In actual operation, when the PCB board is judged to be a defective product by the detection device 20, there may be a misjudgment situation, or a defect of the PCB board belongs to a repairable situation, etc., and after the influence factors are eliminated for the PCB boards, the PCB boards can be detected again subsequently, so that the PCB boards are placed on the NG tray to facilitate subsequent work. And when only one PCB is unqualified on the two turnover plates 313 and the other is qualified, the blanking manipulator 19 is convenient to take the unqualified PCB independently. Of course, in other embodiments, the defective PCB board may be clamped by the clamp 195 on the blanking robot 19 and placed at the NG level 11.

In some embodiments, the second manipulator 32 has two picking assemblies 325 for picking up two PCBs simultaneously and placing them on two flipping boards 313, and the transfer base 31 is further provided with a temporary storage position 314, where the temporary storage position 314 is parallel to the flipping boards 313 and spaced apart from the flipping boards 313. Specifically, when only one of the PCB boards placed on the two flipping boards 313 by the second manipulator 32 is a qualified product, the two flipping boards 313 may first allow the blanking manipulator 19 to suck the unqualified PCB boards on the flipping boards 313 through the negative pressure suction structure 192 and transfer the unqualified PCB boards to the NG level 11, and then the blanking manipulator 19 sucks the qualified PCB boards on the flipping boards 313 through the negative pressure suction structure 192 and transfers the unqualified PCB boards to the temporary storage location 314. The two flipping plates 313 are thus left empty to receive two PCBs transferred from the second robot 32 next time.

If each group of subsequent PCBs (two PCBs) is qualified, the driving assembly 312 drives the two overturning plates 313 to turn upwards on the side far away from each other, so that when the two overturning plates 313 are in the standing state, the two PCBs are mutually attached together in the standing posture for clamping by the blanking manipulator 19. If the two PCB boards on the two turnover boards 313 are all unqualified, the blanking manipulator 19 transfers the two unqualified PCB boards to the NG level 11 through the negative pressure suction structure 192.

If only one of the two turnover boards 313 is qualified, the blanking manipulator 19 first sucks the unqualified PCB on the turnover board 313 through the negative pressure suction structure 192 and transfers the unqualified PCB to the NG level 11, and then the blanking manipulator 19 sucks the qualified PCB of the temporary storage 314 through the negative pressure suction structure 192 and transfers the qualified PCB to the empty turnover board 313 (to remove the turnover board 313 of the unqualified PCB), and at this time, the two turnover boards 313 are all qualified, and one side of the two turnover boards 313 far away from each other can be driven by the driving component 312 to turn upwards.

So set up, can avoid unloading manipulator 19 to insert behind the preceding PCB board in the slot, lead to this slot to insert the condition of another PCB board for all insert two qualified PCB boards in every slot in the charging tray of unloading frame 131, can make full use of the space of charging tray.

In some embodiments, the blanking manipulator 19 is provided with two negative pressure suction structures 192, the clamp 195 is disposed between the two negative pressure suction structures 192, and the two negative pressure suction structures 192 are used to simultaneously pick up the PCB boards on the two flipping boards 313. Like this when the PCB board on two upset boards 313 all is the disqualification article, can once only shift two disqualification PCB boards to NG material level 11 through unloading manipulator 19, can promote efficiency, and clamp 195 locates between two negative pressure suction structures 192, under the condition of mutually noninterfere, can also promote the compactibility of unloading manipulator 19.

In some embodiments, the second guide rails are disposed on two opposite sides of the PCB placement position (the flipping plate 313) on the middle swivel seat 31, the second guide rails extend along the direction of the blanking level 13 pointing to the detecting device 20, the second manipulator 32 includes a second support arm 321, a second lifting component 322 mounted on the second support arm 321, and a material taking component 325 mounted on the second lifting component 322, one end of the second support arm 321 is slidably mounted on one of the second guide rails, and the other end is slidably mounted on the other second guide rail and located above the PCB placement position. Specifically, the flipping plate 313 is located between two second guide rails, and the two second guide rails are spaced apart along the extending direction of the rotation axis of the flipping plate 313.

The PCB inspection apparatus further includes a second driving member 33, and the second driving member 33 is mounted to one of the transfer base 31 and the second supporting arm 321 and is drivingly connected to the other to drive the second supporting arm 321 to move along the second guide rail. The second support arm 321 has a discharging position moving to a position right above the turnover plate 313 and a material taking position moving to a position of the PCB board of the detecting device 20, and when the second support arm 321 moves to the material taking position, the material taking assembly 325 can be driven to move downwards by the second lifting assembly 322 so as to take the PCB board from the detecting device 20, and after the PCB board is taken, the material taking assembly 325 and the PCB board are driven to move upwards by the second lifting assembly 322. And then moved to a discharging position by the driving reduction, and at this time, the material taking assembly 325 is driven to move down by the second lifting assembly 322 to place the PCB on the transfer base 31. Compared with the second manipulator 32 adopting the six-axis mechanical arm 191, the structure of the second manipulator 32 is simple, and the process of transferring the PCB from the detection device 20 to the middle rotating seat 31 is stable.

In some embodiments, the second lift assembly 322 includes a second lift cylinder 323 and a second connector 324, the second lift cylinder 323 is mounted to the second support arm 321, and the second connector 324 is mounted to a piston rod of the second lift cylinder 323 and is connected to the take out assembly 325. The second driving member 33 of the second lifting assembly 322 is acted by the air cylinder, so that the structure of the second lifting assembly 322 can be simplified, and the cost is reduced. Of course, in other embodiments, the second lift assembly 322 includes an electric cylinder mounted to the second support arm 321 and a second connector 324 mounted to the ram of the electric cylinder and connected to the take-off assembly 325.

In some embodiments, the take-out assembly 325 includes a second mounting plate 326 and a second suction member 327 mounted to the second mounting plate 326, the second suction member 327 being disposed downwardly, the second suction member 327 being for connection with a negative pressure generating device.

Specifically, the second suction piece 327 is a negative pressure sucker (suction nozzle), the second suction piece 327 is connected with a negative pressure generating device, negative pressure can be generated at the suction port of the second suction piece 327 through the negative pressure generating device, so that the PCB board can be adsorbed when the suction port of the second suction piece 327 is close to or contacts the PCB board, and the PCB board is taken out, and after the PCB board is moved to the upper part of the middle rotating seat 31, the negative pressure generating device is closed or an air path between the negative pressure generating device and the second suction piece 327 is disconnected, and the PCB board can fall off from the second suction piece 327 under the action of gravity. Therefore, the PCB board can be prevented from being damaged, and the PCB board tiled at the placement position can be taken in aspects. Of course, in other embodiments, the take out assembly 325 includes a clamping jaw through which the PCB board is clamped.

In this embodiment, the number of the second sucking parts 327 is multiple (at least two), so that the contact area between the material taking component 325 and the PCB board can be increased, and the risk of falling the PCB board in the transferring process is reduced. Of course, in other embodiments, only one second suction member 327 may be provided.

In some embodiments, the discharging manipulator 19 includes a mechanical arm 191 and a negative pressure suction structure 192, the mechanical arm 191 is mounted on the frame 10, and the negative pressure suction structure 192 is mounted on a free end of the mechanical arm 191. Alternatively, the robotic arm 191 is a six-axis robotic arm 191.

In some embodiments, the negative pressure suction structure 192 includes a first mounting plate 193 and a first suction member 194, the number of the first suction member 194 is one or more, the first mounting plate 193 is mounted on the free end of the mechanical arm 191, the first suction member 194 is mounted on the first mounting plate 193, and the first suction member 194 is used for connecting to a negative pressure generating device. Specifically, the first suction piece 194 is a negative pressure sucker (suction nozzle), the first suction piece 194 is connected with a negative pressure generating device, negative pressure can be generated at the suction port of the first suction piece 194 through the negative pressure generating device, so that when the suction port of the first suction piece 194 is close to or contacts with a PCB, the PCB can be adsorbed, the PCB can be taken out, after the PCB is moved to a proper position, the negative pressure generating device is closed or an air path between the negative pressure generating device and the first suction piece 194 is disconnected, and the PCB can fall off from the first suction piece 194 under the action of gravity. Therefore, the PCB board can be prevented from being damaged, and the PCB board tiled in the material tray can be taken in aspects. Of course, in other embodiments, the negative pressure suction structure 192 includes a clamping jaw by which the PCB board is clamped.

In some embodiments, the PCB inspection apparatus further includes a second visual positioning device mounted to the frame 10 above the blanking level 13, the second visual positioning device being disposed toward the blanking level 13 for detecting a position of the PCB board in the blanking frame 131. Specifically, the second vision positioning device comprises a mounting frame and a CCD camera mounted on the mounting frame, so that the position and the state of the PCB mounted on the tray can be photographed in real time, and the PCB in the tray can be accurately taken by the blanking manipulator 19. Of course, in other embodiments, the second visual positioning device may also employ a CMOS camera. Optionally, the second vision positioning device is slidably mounted on the frame 10 along the horizontal direction, so that the position of the second vision positioning device in the horizontal direction can be adjusted, so that each group of PCB boards can be positioned and placed. In addition, in other embodiments, the trays may be of the same specification, and the material taking path of the discharging manipulator 19 may be preset, so that the discharging manipulator 19 installs a predetermined program to take the PCB board on the tray.

In some embodiments, the number of the detecting devices 20 is two, and the PCB detecting apparatus further includes a turn-over transferring mechanism 60, where the turn-over transferring mechanism 60 is disposed between the two detecting devices 20, that is, the turn-over transferring mechanism 60 is disposed in the middle of the turn-over, and the turn-over transferring mechanism 60 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 is moved from the loading level 12 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 is moved to the next detecting device 20 by the turn-over transferring mechanism 60, and the PCB is turned over to detect the back side of the PCB 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 60 may be a six-axis robot or other turn-over structure.

In some embodiments, the detecting device 20 includes a rotating base 21 and a plurality of material carrying bases 22, the rotating base 21 is rotatably mounted on the rack 10 (the rotating direction of the rotating base 21 refers to the direction indicated by the arrow at X in fig. 3), the plurality of material carrying bases 22 are all mounted on the rotating base 21 and are distributed around the rotating axis of the rotating base 21, the rack 10 is provided with two detecting positions above each rotating base 21, when the rotating base 21 rotates, the plurality of material carrying bases 22 sequentially pass through the two detecting positions, each detecting position is provided with one visual detecting mechanism 23, in the rotating direction of the rotating base 21, the visual detecting mechanism 23 located at the upstream is used for detecting the dirt condition on the PCB board, and the visual detecting mechanism 23 located at the downstream is used for detecting the quality condition of the PCB board after being detected by the visual detecting mechanism 23 located at the upstream.

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. In the rotational direction of the rotating base 21, the visual inspection mechanism 23 located upstream includes a dirt inspection camera 231, and the visual inspection mechanism 23 located downstream includes a quality inspection camera 232. I.e. the quality detection camera 232 is located downstream of the fouling detection camera 231.

When in use, the PCB is placed on the material carrying seat 22 close to the material loading position 12, the material carrying seat 22 with the PCB is moved to the lower part of the dirt detecting camera 231 (meanwhile, the other adjacent material carrying seat 22 is moved to the position close to the material loading position 12) by rotating the rotating seat 21, and the PCB is shot by the dirt detecting camera 231 to detect whether dirt exists on the PCB. After the detection of the contamination detection camera 231 is completed, the rotating base 21 rotates, so that the PCB board detected by the contamination detection camera 231 moves to the lower side of the quality detection camera 232, and the quality of the PCB board is detected by the quality detection camera 232 (for example, 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 231 and the quality detection camera 232 are both CCD cameras.

When the dirt detecting camera 231 detects that the PCB has dirt, the PCB on the carrier seat 22 may be directly removed by a set manipulator or manually, or may be passed through the quality detecting camera 232 (no quality detection may 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 detection, so that the material can be distinguished when the material is discharged). Similarly, when the quality detection camera 232 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 when the final blanking is performed.

Through set up dirty detection camera 231 before quality detection camera 232, detect whether the PCB board exists the spot through dirty detection camera 231 earlier when detecting, can select out dirty PCB board like this, can avoid leading to the PCB board to be by the condition of misjudgement because of having the spot on the PCB board, promoted the accuracy to PCB board detection. 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 detecting camera 231 and the quality detecting camera 232, 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, and when the rotation seat 21 stops rotating, two loading seats 22 are respectively located below two detection positions; the rotary seat 21 is square, and each side edge position of the rotary seat 21 is correspondingly provided with a material carrying seat 22.

Specifically, when the rotation of the rotating base 21 is stopped, two of the loading bases 22 are respectively located below two detection positions (corresponding to detection positions), another of the loading bases 22 is adjacent to the loading position 12 (corresponding to a loading position), and the last of the loading bases 22 is adjacent to the turn-over transfer mechanism 60 (corresponding to a discharging 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 231, and directly remove the qualified or unqualified PCB board after the detection by the quality detection camera 232), 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 second seat 221 and a negative pressure suction head 227 mounted on the second 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, negative pressure suction head 227 can be sucking disc or suction nozzle, and the suction inlet of negative pressure suction head 227 is up, connects negative pressure generating device with negative pressure suction head 227, can produce the negative pressure through negative pressure generating device in negative pressure suction head 227 suction inlet department, like this when placing the PCB board on negative pressure suction head 227, can adsorb the PCB board to can prevent the condition that the PCB board dropped or squinted in transfer and testing process. 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 second 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 second 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 231, each dirt detection camera 231 is correspondingly located above one mounting rail 226, the downstream detection position is provided with two parallel quality detection cameras 232, and each quality detection camera 232 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. In addition, 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 detecting device 20 includes a rotating seat 21 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 mechanism 40, where the driving mechanism 40 is mounted on the frame 10 or the rotating base 21, and the driving mechanism 40 is connected with the material carrying base 22 and is used to drive the material carrying base 22 to move relative to the visual inspection mechanism 23, so that the visual inspection mechanism 23 sweeps across the PCB board on the material carrying base 22.

Specifically, the visual detection mechanism 23 (such as a CCD camera) is used to capture the PCB on the carrier 22 to detect whether there is a defect (such as a soldering defect, a scratch, a position and pitch error of the wires and the components, a size error of the wires and the components, a shape error of the components, on-off of the wires, 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 mechanism 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.

Through being equipped with a plurality of slip tracks 211 on roating seat 21, make a plurality of slip tracks 211 arrange end to end in proper order along the circumference of roating seat 21, be equipped with a year material seat 22 on every slip track 211, and set up actuating mechanism 40 on frame 10 or roating seat 21, make actuating mechanism 40 be connected with year material seat 22, when detecting, can drive year material seat 22 along slip track 211 through actuating mechanism 40 and remove, and make the PCB board pass through from vision detection mechanism 23 below, thereby make the PCB board on the vision detection mechanism 23 sweeps year material seat 22, in order to detect whole PCB board. 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 mechanism 40 is mounted on the frame 10 and located below the rotating seat 21, and the driving mechanism 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 track 211 under the action of the driving mechanism 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. In this way, the driving mechanism 40 is disposed below the rotating base 21 and below the rotating base 21, compared with the manner of mounting the driving mechanism 40 below the rotating base 21, the driving mechanism 40 can be disposed only at the position below the visual detection mechanism 23, and one driving mechanism 40 is not required to be disposed on the rotating base 21 for each material carrying base 22, so that the number of the driving mechanisms 40 can be reduced, the structures of the rotating base 21 and the PCB detection device can be simplified, the production cost can be reduced, and the overall weight of the rotating base 21 can be reduced.

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 third seat 421 and an elastic member, the pushing member 422 is hinged to the third 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 third 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 mechanism 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 loading seat 22 can be pushed to move along the sliding track 211 under the driving of the driving mechanism 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 mechanism 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 mechanism 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 mechanism 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 mechanism 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 mechanism 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 mechanism 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 mechanism 40 drives the pushing member 422 to reset.

In some embodiments, the material loading seat 22 includes a second seat 221 and a plurality of negative pressure suction heads 227, the second seat 221 is mounted on the sliding rail 211, two mounting rails 226 arranged side by side are provided on the second 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 with 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 second 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 second 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 is avoided, and abrasion between the second seat 221 and the sliding rail 211 can be reduced.

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

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, further comprising an empty tray rack slidably mounted to the loading level through the loading opening and positioned side-by-side with the loading tray, the loading robot being further configured to transfer empty trays on the loading tray to the empty tray rack.

3. The PCB inspection apparatus of claim 2, wherein the loading level is provided with a first lifting mechanism having a first bracket, a first avoidance seat is provided at a bottom of the loading frame, and the first bracket can extend into the loading frame through upward movement of the first avoidance seat to jack up a tray in the loading frame;

the feeding level is provided with a second lifting mechanism, the second lifting mechanism is provided with a second bracket, the bottom of the empty tray frame is provided with a second avoidance position, and the second bracket can move upwards through the second avoidance position to extend into the empty tray frame so as to jack up a tray in the feeding frame.

4. The PCB inspection apparatus of claim 1, further comprising a transfer mechanism including a placement base mounted between the loading level and the inspection device, the placement base having a placement position for placement of a PCB, and a first manipulator movably mounted above the placement base for movement between the placement base and the inspection device, the loading manipulator for transferring the PCB in the loading level to the placement base, the first manipulator for transferring the PCB on the placement base to the inspection device.

5. The PCB inspection apparatus of claim 1, further comprising a tray rack slidably mounted to the blanking level through the blanking opening and disposed side by side with the blanking rack, the tray rack for stacking a plurality of empty trays, the blanking robot further for transferring empty trays in the tray rack into the blanking rack.

6. The PCB inspection apparatus of claim 1, wherein the chassis is further provided with a take out port and an NG level inside the take out port, the blanking manipulator is further configured to transfer the reject PCB inspected by the inspection device to the NG level, the take out port, the feed opening and the blanking opening are disposed on a same side of the chassis, and the take out port is disposed between the feed opening and the blanking opening.

7. The PCB inspection apparatus of claim 6 further comprising a center swivel mount and a second robot, the center swivel mount being disposed between the blanking level and the inspection device, the center swivel mount being configured for placement of a PCB, the second robot being movably mounted above the center swivel mount for movement between the center swivel mount and the inspection device for transferring a PCB inspected by the inspection device to the center swivel mount, the blanking robot being configured for transferring a qualified PCB on the center swivel mount to a tray of the blanking rack, the blanking robot being further configured for transferring a reject PCB on the center swivel mount to the NG level.

8. The PCB inspection apparatus of claim 7, wherein the transfer base includes a first base, a driving assembly and two turnover plates, the two turnover plates are disposed side by side, and one sides of the two turnover plates adjacent to each other are rotatably mounted on the first base, the two turnover plates have a horizontal state in which they are horizontally disposed and a vertical state in which they are vertically disposed, and in the vertical state, the two turnover plates are close to each other so that the PCBs on the two turnover plates are vertically disposed and are attached to each other, and the driving assembly is mounted on the first base and is in driving connection with the two turnover plates to drive the two turnover plates to switch between the horizontal state and the vertical state; the blanking manipulator is provided with a clamp which is used for clamping two PCB boards between the two turnover boards in the standing state;

The blanking manipulator is further provided with a negative pressure suction structure which is spaced from the clamp, and when the second manipulator is placed on the turnover plate and is a defective PCB, the blanking manipulator is used for sucking the defective PCB on the turnover plate through the negative pressure suction structure and transferring the defective PCB to the NG material level in the horizontal state;

the second manipulator is provided with two material taking assemblies for taking two PCB boards simultaneously and placing the two PCB boards on the two turnover boards, the transfer seat is also provided with temporary storage positions, and the temporary storage positions are parallel to the turnover boards and are arranged at intervals.

9. The PCB inspection apparatus of any one of claims 1 to 8, wherein the inspection device includes a rotation base rotatably mounted to the frame and located at one side of the loading level, a plurality of carrier bases mounted to the rotation base and arranged around a rotation axis of the rotation base, a stain inspection camera mounted to one of the inspection locations and located toward the carrier base located below the inspection location, and a quality inspection camera mounted to the other of the inspection locations and located downstream of the stain inspection camera while the rotation base rotates.

10. The PCB inspection apparatus according to any one of claims 1 to 8, wherein the inspection device includes a rotating base rotatably mounted to the frame, a visual inspection mechanism and a plurality of loading bases, the rotating base being provided with a plurality of sliding rails, the plurality of sliding rails being arranged end to end in sequence along a circumferential direction of the rotating base, each loading base being correspondingly mounted to one of the sliding rails, the visual inspection mechanism being disposed above the rotating base and being disposed downward;

the PCB detection equipment further comprises a driving mechanism, wherein the driving mechanism is arranged on the rack or the rotating seat, and the driving mechanism is connected with the material carrying seat and is used for driving the material carrying seat to move relative to the visual detection mechanism so that the visual detection mechanism sweeps the PCB on the material carrying seat.