Automatic detection equipment for PCB (Printed Circuit Board)

Abstract

The utility model relates to automatic detection equipment for a PCB (Printed Circuit Board), which comprises a feeding conveying mechanism which is conveyed to a material taking station through a feeding conveying belt, a cover plate disassembling mechanism which is used for taking out a cover plate placed on the upper side of the PCB in a carrier, a movable manipulator, a detection mechanism which is used for taking the PCB out of the carrier, and a detection mechanism which is used for detecting parameters of the PCB, the detection mechanism comprises a transverse detection transmission mechanism, a movable detection jig is arranged on the upper side of the transverse detection transmission mechanism and used for placing a PCB to be detected, a plurality of top detection mechanisms are further arranged on the upper side of the transverse detection transmission mechanism, and when moving on the upper side of the transverse detection transmission mechanism, the detection jig sequentially passes through the top detection mechanisms and is used for detecting the PCB to be detected. And the discharging manipulator is used for classifying the detected PCBs and moving the PCBs to a qualified material receiving station, the discharging conveyor belt and the transverse detection transmission mechanism which is linearly arranged are adopted, to-be-detected products are placed on the detection jig, and in the moving process of the detection jig, multiple top detection can be rapidly completed, so that the production efficiency is improved.

Description

TECHNICAL FIELD

[0001] The utility model relates to the field of PCB production equipment, in particular to a kind of PCB automatic detection equipment. BACKGROUND

[0002] In the production process of PCB, a plurality of inspections need to be carried out to ensure that the PCB meets the quality requirements, in the prior art, in order to detect different needs, different detection equipment needs to be used, when there are multiple detection requirements, the product needs to be sequentially passed through the inspection equipment, at this time, the product needs to be moved multiple times by a mechanical hand, so that a certain time is needed for each movement during detection, and positioning is also needed during detection, thereby affecting the detection efficiency. SUMMARY

[0003] Therefore, it is necessary to provide a kind of PCB automatic detection equipment for the problems in the prior art.

[0004] A kind of PCB automatic detection equipment, characterized by comprising

[0005] Feeding transmission mechanism is equipped with feeding conveyor belt, PCB board is placed on the upper side of carrier, is conveyed to material taking station by feeding conveyor belt,

[0006] Cover plate mechanism is used to take out the cover plate placed on the upper side of PCB board in carrier, so that PCB board can be taken out from the upper side position of carrier,

[0007] Moving mechanical hand is used to take out PCB board from carrier and move to detection mechanism,

[0008] Detection mechanism is used to detect PCB board parameters, and the detection mechanism includes transverse detection transmission mechanism, the detection fixture for placing PCB board to be detected is arranged on the upper side of the transverse detection transmission mechanism, and a plurality of top detection mechanisms are further arranged on the upper side of the transverse detection transmission mechanism, the detection fixture sequentially passes through the top detection mechanism when moving on the upper side of the transverse detection transmission mechanism,

[0009] Discharging mechanical hand is used to classify and move the PCB board after detection to qualified material receiving station and discharging conveyor belt.

[0010] In one embodiment, the cover plate mechanism includes a horizontal transmission structure, which is arranged parallel to the feeding conveyor belt, a vertical cylinder is arranged on the upper side of the horizontal transmission structure, a moving bracket is connected to the piston rod of the vertical cylinder, the shape of the moving bracket is matched with the shape of the cover plate, and a plurality of cover plate suction cups are arranged on the moving bracket.

[0011] In one of the embodiments, the moving manipulator comprises a longitudinal moving structure which is arranged across the feeding conveyor and the upper side of the detection mechanism, the upper side of the longitudinal moving structure is provided with a transverse moving structure, the lateral side of the transverse moving structure is provided with a vertical moving structure, and the vertical moving structure comprises a moving suction cup which is used for sucking and fixing the PCB board on the upper side of the carrier.

[0012] In one of the embodiments, the detection mechanism further comprises a bottom detection mechanism which is arranged between the transverse detection transmission mechanism and the feeding conveyor, and after the moving manipulator takes out the PCB board from the carrier plate of the feeding conveyor, the moving manipulator is moved to the position of the bottom detection mechanism to detect the bottom of the PCB board.

[0013] In one of the embodiments, the discharging manipulator comprises a manipulator main body, and the manipulator main body is connected with a suction plate mechanism, the suction plate mechanism comprises a transverse support, the lower side of the transverse support is provided with a suction plate cylinder, the piston rod of the suction plate cylinder is connected with a suction plate assembly which is used for sucking the PCB board.

[0014] In one of the embodiments, the suction plate assembly comprises a suction plate structure, the fixed plate of the suction plate structure is connected with a connecting plate through a connecting rod on the lower side, the outer side of the connecting rod is sleeved with a spring, the upper end of the connecting rod passes through a through hole which is arranged on the fixed plate, the upper end of the connecting rod is provided with a limit snap spring, and the lower side of the connecting rod is provided with a detachable discharging suction plate, and the lower side of the discharging suction plate is provided with a discharging suction cup.

[0015] In one of the embodiments, the automatic detection equipment further comprises a carrier recycling mechanism which is arranged at the end position of the feeding conveyor and is used for recycling the carrier which has taken out the PCB board, the carrier recycling mechanism comprises a recycling platform, the recycling platform is connected with a vertical lead screw through a moving pair, the upper side of the recycling platform is provided with a longitudinal recycling moving structure, the upper side of the longitudinal recycling moving structure is provided with a recycling bin, and the recycling bin is provided with a plurality of clamping grooves which are arranged in an up-down distribution.

[0016] In one of the embodiments, the automatic detection equipment further comprises a printing and labeling mechanism, the printing and labeling mechanism comprises a printer and a labeling structure, the labeling outlet of the printer is provided with a label stripping plate, the outer side of the label stripping plate is provided with a horizontal bottom plate, and the label which is printed is stripped at the position of the label stripping plate and is moved to the position of the horizontal bottom plate, the labeling structure comprises a transverse labeling transmission mechanism, the moving end of the transverse labeling transmission mechanism is provided with a vertical labeling cylinder, the piston rod of the vertical labeling cylinder is connected with a labeling horizontal plate, the lower side of the labeling horizontal plate is provided with an L-shaped labeling plate, the L-shaped labeling plate is provided with a horizontal part, and the horizontal part is provided with a labeling suction head which is used for sucking and moving the label at the position of the horizontal bottom plate.

[0017] The PCB automatic detection equipment, when the PCB to be detected is moved to a preset position through the feeding conveying belt, then the cover plate on the upper side of the PCB is taken out through the cover plate dismounting mechanism, and then the PCB is moved to the detection mechanism through the moving manipulator, the detection of the PCB is completed, after the detection is completed, the discharging manipulator classifies and processes the PCB, so that the detection process of the PCB is completed, the whole process is automated, meanwhile, the horizontal detection conveying mechanism arranged in a straight line is adopted, the product to be detected is placed on the detection jig, during the movement of the detection jig, multiple top detections can be quickly completed, so that the production efficiency is improved. BRIEF DESCRIPTION OF DRAWINGS

[0018] Figure 1 It is an overall structural schematic view of the PCB automatic detection equipment.

[0019] Figure 2 It is a cover plate dismounting mechanism structural schematic view of the PCB automatic detection equipment.

[0020] Figure 3 It is a moving manipulator structural schematic view of the PCB automatic detection equipment.

[0021] Figure 4 It is a plate suction assembly structural schematic view of the PCB automatic detection equipment.

[0022] Figure 5 It is a printing and labeling mechanism structural schematic view of the PCB automatic detection equipment.

[0023] Figure 6 It is a carrier recycling mechanism structural schematic view of the PCB automatic detection equipment.

[0024] 1, feeding conveying mechanism;

[0025] 2, cover plate dismounting mechanism; 21, horizontal conveying structure; 22, vertical air cylinder; 23, moving support;

[0026] 3, moving manipulator; 31, longitudinal moving structure; 32, horizontal moving structure; 33, vertical moving structure; 34, moving suction disc;

[0027] 4, detection mechanism; 40, detection jig; 41, top detection mechanism; 42, bottom detection mechanism;

[0028] 5, discharging manipulator; 51, manipulator main body; 52, horizontal support; 53, plate suction air cylinder; 54, plate suction assembly; 541, fixed plate; 542, connecting plate; 543, spring; 544, discharging plate suction;

[0029] 6, carrier recycling mechanism; 61, recycling platform; 62, longitudinal recycling moving structure; 63, recycling bin;

[0030] 7, printing and labeling mechanism; 71, label stripping plate; 72, horizontal bottom plate; 73, transverse labeling transmission mechanism; 74, vertical labeling cylinder; 75, labeling horizontal plate; 76, L-shaped labeling plate; 77, labeling suction head. DETAILED DESCRIPTION

[0031] In order to make the above-mentioned purposes, features and advantages of the present application more obvious and easy to understand, the specific embodiments of the present application will be described in detail below with reference to the drawings. In the following description, many specific details are set forth in order to provide a thorough understanding of the present application. However, the present application can be implemented in many other ways different from those described herein, and those skilled in the art can make similar improvements without departing from the spirit of the present application, therefore the present application is not limited to the specific embodiments disclosed below.

[0032] It should be noted that when an element is referred to as "fixed to" another element, it can be directly on the other element or there can be a middle element. When an element is referred to as "connected to" another element, it can be directly connected to the other element or there can be a middle element. Conversely, when an element is referred to as "directly on" another element, there is no middle element. The terms "vertical", "horizontal", "left", "right" and similar expressions used herein are for illustrative purposes only.

[0033] Unless otherwise defined, all technical and scientific terms used herein have the same meaning as commonly understood by one of ordinary skill in the art to which the present application belongs. The terms used in the specification of the present application herein are only for the purpose of describing the specific embodiments and are not intended to limit the present application. The term "and / or" used herein includes any and all combinations of one or more related listed items.

[0034] As shown in Figures 1 to 6 A PCB automatic detection device, characterized in that it comprises

[0035] The feeding transmission mechanism 1 is provided with a feeding conveyor belt, and the PCB is placed on the upper side of the carrier, which is conveyed to the material taking station by the feeding conveyor belt,

[0036] The cover plate mechanism 2 is used to take out the cover plate placed on the upper side of the PCB in the carrier, so that the PCB can be taken out from the upper side of the carrier,

[0037] The moving manipulator 3 is used to take out the PCB from the carrier and move it to the detection mechanism 4,

[0038] The detection mechanism 4 is used for detecting the PCB parameters, and the detection mechanism 4 comprises a transverse detection transmission mechanism, the upper side of the transverse detection transmission mechanism is provided with a movable detection jig 40 for placing the PCB to be detected, and the upper side of the transverse detection transmission mechanism is further provided with a plurality of top detection mechanisms 41, and the detection jig 40 sequentially passes through the top detection mechanisms 41 when moving on the upper side of the transverse detection transmission mechanism.

[0039] The discharging manipulator 5 is used for classifying and moving the detected PCB to a qualified material receiving station and a discharging conveying belt.

[0040] The PCB to be detected is moved to a preset position through the feeding conveying belt, then the cover plate on the upper side of the PCB is taken out through the cover plate removing mechanism 2, and then the PCB is moved to the detection mechanism 4 through the moving manipulator 3, the detection of the PCB is completed, and after the detection is completed, the discharging manipulator 5 classifies and processes the PCB, so that the detection process of the PCB is completed, the whole process is automated, meanwhile, the transverse detection transmission mechanism arranged in a straight line is used to place the product to be detected on the detection jig 40, and a plurality of top detections can be quickly completed during the movement of the detection jig 40, so that the production efficiency is improved.

[0041] At this time, the carrier comprises a bottom plate, the upper side of the bottom plate is provided with a groove for placing the PCB, and the upper side of the PCB is provided with a cover plate, so that during the detection process, the cover plate needs to be taken off first, and then the PCB to be detected can be taken out, therefore, in the embodiment, the cover plate removing mechanism 2 comprises a transverse transmission structure 21, the transverse transmission structure 21 is arranged in parallel with the feeding conveying belt, the upper side of the transverse transmission structure 21 is provided with a vertical air cylinder 22, the piston rod of the vertical air cylinder 22 is connected with a moving bracket 23, the shape of the moving bracket 23 is matched with the shape of the cover plate, and the moving bracket 23 is provided with a plurality of plate removing suction cups. The transverse transmission structure 21 can adopt a guide rail sliding block structure driven by a motor, or can adopt a linear motor, the vertical air cylinder 22 is arranged on the upper side of the transverse transmission structure 21, so as to realize the transverse movement of the vertical air cylinder 22, and the moving bracket 23 is fixed with the piston rod of the vertical air cylinder 22, so as to realize the transverse movement (in the direction of the feeding conveying belt) and the vertical movement (perpendicular to the direction of the feeding conveying belt) of the moving bracket 23, in this way, the carrier on the upper side of the feeding conveying belt can be taken out after entering, the cover plate outside the nozzle of the carrier can be taken out through the plate removing suction cup arranged on the moving bracket 23, so as to expose the PCB, so as to facilitate the taking out of the PCB for detection in the subsequent process. At this time, the plate removing suction cup is a plurality of suction cups, and the shape of the suction cup is matched with the shape of the cover plate.

[0042] After the cover plate on the upper side of the carrier is taken out, the PCB board needs to be taken out from the upper side of the carrier bottom plate and moved to the detection result position, so in this embodiment, the moving manipulator 3 includes a longitudinal moving structure 31 which is transverse to the upper side of the feeding conveyor and the detection mechanism 4, the upper side of the longitudinal moving structure 31 is provided with a transverse moving structure 32, the side of the transverse moving structure 32 is provided with a vertical moving structure 33, the vertical moving structure 33 includes a moving suction cup 34 for suction fixing the PCB board on the upper side of the carrier. The longitudinal moving structure 31 is perpendicular to the transverse moving structure 32, at this time, the longitudinal moving structure 31 and the transverse moving structure 32 can be motor-driven guide rail slider structures, or linear motors can also be used, so as to control the transverse and longitudinal movement of the vertical moving structure 33, so as to realize the taking out of the PCB board from the upper side of the carrier bottom plate and placing it to a specific position (detection result), at this time, the moving suction cup 34 is a vacuum suction cup, the shape distribution of which is adapted to the PCB board, so as to suction fix the PCB board.

[0043] The detection structure mainly detects through the camera, so in the detection process, in order to ensure that the product after detection meets the requirements, the product needs to be detected from multiple sides, in this embodiment, the detection structure further includes a bottom detection mechanism 42 between the transverse detection transmission mechanism and the feeding conveyor, after the PCB board is taken out from the carrier plate of the feeding conveyor by the moving manipulator 3, it is first moved to the position of the bottom detection mechanism 42 to detect the bottom of the PCB board. At this time, the bottom of the PCB board is not blocked because the PCB board is grabbed and moved by the discharging manipulator 5, so the detection of the bottom of the PCB board can be completed in the moving process, so it is not necessary to design another moving structure to move and detect the PCB board, so as to simplify the overall structure and improve the detection efficiency.

[0044] At this time, the bottom detection mechanism 42 is a 3D camera for detecting whether the electrical component is missing, damaged or abnormal, and the top detection mechanism 41 is a 2D camera for detecting whether the product is abnormal through imaging.

[0045] After the detection is completed, the PCB board after detection needs to be taken out and moved to the qualified material receiving station, the discharging manipulator 5 includes a manipulator body 51, the manipulator body 51 is connected with a suction plate mechanism, the suction plate mechanism includes a transverse support 52, the lower side of the transverse support 52 is provided with a suction plate cylinder 53, the piston rod of the suction plate cylinder 53 is connected with a suction plate assembly 54 for suctioning the PCB board. At this time, the qualified material receiving station is provided with a material receiving plastic tray, after the suction plate assembly 54 suctions and fixes the PCB board, the PCB board after detection is taken out from the detection fixture 40 under the action of the manipulator body 51, classified according to the detection condition and placed in the qualified material receiving station, the unqualified product is placed to the discharging conveyor, at this time, a collection frame is arranged at the end of the discharging conveyor for collecting the defective products.

[0046] Specifically, the suction plate assembly 54 comprises a suction plate structure, the suction plate structure is fixed plate 541, the lower side of the fixed plate 541 is connected with connecting plate 542 through connecting rod, the outer side of the connecting rod is sleeved with spring 543, the upper end of the connecting rod passes through the through hole of the fixed plate 541, the upper end of the connecting rod is provided with limit snap spring, the lower side of the connecting rod is provided with detachable discharge suction plate 544, the lower side of the discharge suction plate 544 is provided with discharge suction disc. At this time, the lower end of the connecting rod is fixed with the discharge suction plate 544 through fastener, when the discharge suction disc moves downward, if the lower side abuts against the PCB board, the spring 543 will be compressed, so that the discharge suction plate 544 will not directly hard contact the PCB board, so as to protect the PCB board, at the same time, the discharge suction disc is arranged at the lower side of the discharge suction plate 544, the discharge suction disc is connected with the vacuum pump, so as to form vacuum adsorption.

[0047] After the PCB board on the carrier is taken out, the carrier needs to be collected, therefore, in the embodiment, the automatic detection equipment further comprises a carrier recycling mechanism 6 arranged at the end position of the feeding conveyor belt, used for recycling the carrier after taking out the PCB board, the carrier recycling mechanism 6 comprises a recycling platform 61 connected with a vertical lead screw through a moving pair, the upper side of the recycling platform 61 is provided with longitudinal recycling moving structure 62, the upper side of the longitudinal recycling moving structure 62 is provided with recycling bin 63, the recycling bin 63 is provided with a plurality of clamping grooves distributed upward and downward. The vertical lead screw is connected with a motor, the rotation of the vertical lead screw is controlled through the motor, so as to control the upward and downward movement of the recycling bin 63, so that the clamping groove of the recycling bin 63 can be controlled to be at different height positions, when the carrier moves, the height of the clamping groove of the recycling bin 63 is adjusted, so that the carrier moves into the clamping groove, thereby recycling the carrier, at the same time, the lower side of the recycling bin 63 is provided with longitudinal recycling moving structure 62, specifically, a motor and a conveyor belt structure are arranged, after the recycling bin 63 collects the carrier, the recycling bin 63 can be moved to the side position through the longitudinal recycling moving structure 62, and a new recycling bin 63 can be placed at the original position, so as to realize the automatic collection and discharging of the carrier.

[0048] When collecting the good products, labeling also needs to be performed, therefore, in the embodiment, the automatic detection device further comprises a printing and labeling mechanism 7, which comprises a printer and a labeling structure, the printer is provided with a label stripping plate 71, a horizontal bottom plate 72 is arranged outside the label stripping plate 71, the label after printing is stripped at the position of the label stripping plate 71 and moved to the position of the horizontal bottom plate 72, the labeling structure comprises a horizontal labeling transmission mechanism 73, a vertical labeling cylinder 74 is arranged at the moving end of the horizontal labeling transmission mechanism 73, a labeling horizontal plate 75 is connected to the piston rod of the vertical labeling cylinder 74, an L-shaped labeling plate 76 is arranged at the lower side of the labeling horizontal plate 75, the L-shaped labeling plate 76 is provided with a horizontal part, a labeling suction head 77 is arranged at the position of the horizontal part, for sucking and moving the label at the position of the horizontal bottom plate 72. The label stripping plate 71 is arranged at the discharging position of the printer, at this time, the label stripping plate 71 adopts the existing design, the horizontal bottom plate 72 is arranged outside the label stripping plate 71, for bearing the stripped label, the horizontal labeling transmission mechanism 73 is a horizontally arranged cylinder, under the action of the horizontal labeling transmission mechanism 73 and the vertical labeling cylinder 74, the L-shaped labeling plate 76 can move horizontally and vertically, so that the labeling suction head 77 moves horizontally and vertically, when vertically moving, the label can be sucked and taken out, then horizontally moved to the upper side of the PCB board, then downward moved to paste the label on the upper side of the PCB board, so as to complete the labeling work of the PCB board, at this time, the labeling structure is simple as a whole, and is suitable for pasting the label arranged in rows.

[0049] The technical features of the above embodiments can be combined arbitrarily, and for the sake of brevity, all possible combinations of the technical features in the above embodiments are not described, however, as long as the combinations of the technical features do not exist contradictory, they should be considered as the scope of the present application.

[0050] The above embodiments only express several implementation manners of the present application, the description is more specific and detailed, but it should not be understood as the limitation of the scope of the present application. It should be pointed out that, for ordinary skilled in the art, without departing from the concept of the present application, a number of modifications and improvements can be made, which all belong to the protection scope of the present application. Therefore, the protection scope of the present application patent should be subject to the appended claims.

Claims

1. An automatic PCB board inspection device, characterized in that, include The feeding and conveying mechanism is equipped with a feeding conveyor belt. The PCB board is placed on the upper side of the carrier and is conveyed to the picking station via the feeding conveyor belt. The cover removal mechanism is used to remove the cover plate placed on the upper side of the PCB board in the carrier, allowing the PCB board to be removed from the upper side of the carrier. A mobile robotic arm is used to remove PCB boards from a carrier and move them to the inspection mechanism. A testing mechanism for detecting PCB board parameters includes a lateral testing and transfer mechanism. A movable testing fixture is mounted on the upper side of the lateral testing and transfer mechanism for placing the PCB board to be tested. Multiple top testing mechanisms are also mounted on the upper side of the lateral testing and transfer mechanism. As the testing fixture moves along the upper side of the lateral testing and transfer mechanism, it passes through the top testing mechanisms sequentially. The unloading robot is used to classify the inspected PCB boards and move them to the qualified receiving station and unloading conveyor belt.

2. The automatic PCB board inspection equipment according to claim 1, characterized in that, The cover plate removal mechanism includes a transverse transmission structure, which is arranged parallel to the feeding conveyor belt. A vertical cylinder is provided on the upper side of the transverse transmission structure. The piston rod of the vertical cylinder is connected to a movable bracket. The shape of the movable bracket is adapted to the shape of the cover plate. The movable bracket is provided with multiple cover plate removal suction cups.

3. The automatic PCB board inspection equipment according to claim 2, characterized in that, The mobile robotic arm includes a longitudinal moving structure spanning the upper side of the feeding conveyor belt and the detection mechanism. A transverse moving structure is provided on the upper side of the longitudinal moving structure, and a vertical moving structure is provided on the side of the transverse moving structure. The vertical moving structure includes a movable suction cup for adsorbing and fixing the PCB board on the upper side of the carrier.

4. The automatic PCB board inspection equipment according to claim 3, characterized in that, The detection mechanism also includes a bottom detection mechanism between the transverse detection and transmission mechanism and the feeding conveyor belt. After the mobile robot takes the PCB board off the carrier of the feeding conveyor belt, it first moves to the bottom detection mechanism to detect the bottom of the PCB board.

5. The automatic PCB board inspection equipment according to claim 4, characterized in that, The unloading robot includes a robot body, which is connected to a suction plate mechanism. The suction plate mechanism includes a horizontal support, and a suction plate cylinder is provided on the lower side of the horizontal support. The piston rod of the suction plate cylinder is connected to a suction plate assembly for adsorbing PCB boards.

6. The automatic PCB board inspection equipment according to claim 5, characterized in that, The suction plate assembly includes a suction plate structure, which includes a fixed plate. A connecting plate is connected to the lower side of the fixed plate via a connecting rod. A spring is sleeved on the outer side of the connecting rod. The upper end of the connecting rod passes through a through hole provided in the fixed plate. A limiting spring is provided at the upper end of the connecting rod. A detachable discharge suction plate is provided on the lower side of the connecting rod. A discharge suction cup is provided on the lower side of the discharge suction plate.

7. The automatic PCB board inspection equipment according to any one of claims 1 to 6, characterized in that, The automatic detection equipment also includes a carrier recovery mechanism, which is located at the end of the feeding conveyor belt and is used to recover the carrier after removing the PCB board. The carrier recovery mechanism includes a recovery platform, which is connected to a vertical lead screw through a sliding pair. A longitudinal recovery moving structure is provided on the upper side of the recovery platform, and a recovery bin is provided on the upper side of the longitudinal recovery moving structure. The recovery bin has multiple slots distributed vertically.

8. The automatic PCB board inspection equipment according to any one of claims 1 to 6, characterized in that, The automatic detection equipment also includes a printing and labeling mechanism, which includes a printer and a labeling structure. The printer's label outlet is equipped with a peeling plate, and a horizontal base plate is provided on the outside of the peeling plate. After printing, the label is peeled off at the peeling plate and moved to the horizontal base plate. The labeling structure includes a horizontal labeling transmission mechanism. The moving end of the horizontal labeling transmission mechanism is equipped with a vertical labeling cylinder. The piston rod of the vertical labeling cylinder is connected to a labeling horizontal plate. An L-shaped labeling plate is provided on the lower side of the labeling horizontal plate. The L-shaped labeling plate has a horizontal part, and a labeling suction head is provided at the horizontal part for adsorbing and moving the label at the horizontal base plate.

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