Automatic hole inspection equipment for PCB (Printed Circuit Board)

Abstract

The embodiment of the utility model discloses PCB automatic hole inspection equipment, and relates to the field of PCB equipment detection devices.The PCB automatic hole inspection equipment comprises a conveying device, a flow dividing device and an adjusting device, a plurality of conveying grooves are formed in the conveying device, visual inspection equipment is erected on the conveying device, a plurality of cameras are arranged on the visual inspection equipment, and the cameras correspond to the conveying grooves; the flow dividing device is arranged on one side of the conveying device and comprises a first channel and a second channel, and the first channel and the second channel are arranged corresponding to one side of the conveying groove. The adjusting device is arranged between the conveying device and the flow dividing device and comprises a plurality of driving devices and a plurality of adjusting plates, the adjusting plates correspond to the conveying grooves in a one-to-one mode, and the driving devices drive the adjusting plates to rotate so that the conveying grooves can be connected with the first channel or the second channel; through arrangement of the conveying device, the shunting device and the adjusting device, hole site detection can be performed on the PCBs, and classification of the PCBs is facilitated.

Description

Technical Field

[0001] The present application relates to the field of PCB equipment detection devices, and in particular to an automatic hole detection device for PCB boards. Background Art

[0002] PCB, the full name of which is Printed Circuit Board, is also called printed circuit board in Chinese. It is an important electronic component, a support for electronic components, and a carrier for the electrical connection of electronic components. It presses layers of different materials together through heat and adhesives. PCB plays a vital role in communication equipment. They are used in telephones, mobile phones, radios, satellite communication systems and other data transmission equipment to provide reliable signal transmission paths and ensure accurate data transmission. At the same time, in the field of medical equipment, because medical equipment has extremely high requirements for accuracy and reliability, and PCB boards can meet these requirements, they are also widely used in medical diagnostic and monitoring equipment, surgical instruments, implantable devices, etc.

[0003] In the manufacturing process of existing PCB boards, it is inevitable that the hole positions will be inaccurate and the hole radius will be different. Therefore, it is necessary to perform hole position detection on the PCB boards. The existing hole position detection efficiency is low and the PCB boards cannot be classified.

[0004] Therefore, how to realize hole position detection and classification of PCB boards is an important technical problem that needs to be solved urgently. Utility Model Content

[0005] In order to solve the problems existing in the prior art, the utility model provides an automatic hole inspection device for PCB boards, which can detect the hole positions of PCB boards by providing a transportation device, a diversion device and an adjustment device, thereby facilitating the classification of PCB boards.

[0006] The technical solution adopted by the utility model to solve the above technical problems is as follows:

[0007] The present application provides a PCB board automatic hole inspection device, comprising:

[0008] A transport device, wherein a plurality of transport slots are provided on the transport device, a visual inspection device is mounted on the transport device, and a plurality of cameras are arranged on the visual inspection device, and the cameras are arranged corresponding to the transport slots;

[0009] A flow dividing device is arranged at a side position of the transport device, the flow dividing device comprises a first channel and a second channel, the first channel and the second channel are arranged at a side position corresponding to the transport trough;

[0010] an adjusting device, arranged between the transport device and the diverting device, the adjusting device comprising a plurality of driving devices and a plurality of adjusting plates, the plurality of adjusting plates corresponding to the plurality of transport slots one by one, the driving device driving the adjusting plates to rotate so that the transport slots are connected to the first channel or the transport slots are connected to the second channel;

[0011] Wherein, the visual inspection device is electrically connected to the driving device and the transportation device.

[0012] Optionally, in some embodiments of the present application, one end of the adjustment plate close to the transport trough abuts against the transport trough, and one end of the adjustment plate close to the transport trough is rotatably connected to the transport device;

[0013] One end of the adjustment plate away from the transport trough abuts against the first channel or the second channel;

[0014] A connecting piece is arranged between the driving device and the adjusting plate, and both ends of the connecting piece are rotatably connected to the driving device and the adjusting plate.

[0015] Optionally, in some embodiments of the present application, the driving device includes a driving motor and an eccentric wheel, and the eccentric wheel is arranged on the output end of the driving motor;

[0016] A support rod is provided at a position on the adjustment plate corresponding to the connecting member;

[0017] One end of the connecting member is rotatably connected to the eccentric wheel, and the other end of the connecting member is sleeved outside the supporting rod and rotatably connected to the supporting rod.

[0018] Optionally, in some embodiments of the present application, a fixing member is provided on the eccentric wheel, and the fixing member is provided on the eccentric wheel near the edge of the eccentric wheel.

[0019] Optionally, in some embodiments of the present application, the first channel is arranged in parallel with the second channel, and when the driving device drives the connecting member so that the adjustment plate is located in a first position, the adjustment plate connects the transport trough and the first channel; when the driving device drives the connecting member so that the adjustment plate is located in a second position, the adjustment plate connects the transport trough and the second channel.

[0020] Optionally, in some embodiments of the present application, the PCB board automatic hole inspection equipment also includes a grabbing device, which is arranged at one end of the transport device away from the diversion device, and the grabbing device grabs the item and places the item in the transport trough.

[0021] Compared with the prior art, the beneficial effects of the present invention are:

[0022] The present application is provided with a transport device, a diverter device and an adjustment device. The PCB board is grabbed by a grabbing device and placed in a transport slot on the transport device. The width of the transport slot is equal to the size of the PCB board, so that the PCB board can be transported in the transport slot in sequence, which is convenient for the camera above the transport slot to detect and compare the size and position of the holes on the PCB board. When a qualified product is detected, the visual inspection device controls the driving device in the adjustment device to rotate, and an eccentric wheel is provided at the output end of the driving device. The eccentric wheel drives the connecting piece to rotate the adjustment plate so that the end of the adjustment plate away from the transport device abuts against the first channel, which is convenient for the PCB board to enter the first channel; when an unqualified product is detected, the visual inspection device controls the driving device in the adjustment device to rotate, and the eccentric wheel on the output end drives the connecting piece to rotate the adjustment plate so that the end of the adjustment plate away from the transport device abuts against the second channel, which is convenient for the PCB board to enter the second channel. BRIEF DESCRIPTION OF THE DRAWINGS

[0023] In order to more clearly illustrate the technical solutions in the embodiments of the present application, the drawings required for use in the description of the embodiments will be briefly introduced below. Obviously, the drawings described below are only some embodiments of the present application. For those skilled in the art, other drawings can be obtained based on these drawings without creative work.

[0024] Figure 1 A schematic diagram of the overall structure of the automatic hole inspection device for PCB boards provided in an embodiment of the present application;

[0025] Figure 2 for Figure 1 A schematic diagram of the state structure of the adjustment plate at the first position;

[0026] Figure 3 for Figure 1 A schematic diagram of the state structure of the adjustment plate at the second position;

[0027] Figure 4 A schematic diagram of the overall structure of the flow diversion device provided in an embodiment of the present application;

[0028] Figure 5 A schematic diagram of the overall structure of a visual inspection device provided in an embodiment of the present application;

[0029] Figure 6 A schematic diagram of the overall structure of the regulating device provided in an embodiment of the present application.

[0030] Description of reference numerals:

[0031] 100, transport device; 110, transport trough; 120, visual inspection equipment; 121, camera; 200, diversion device; 210, first channel; 220, second channel; 300, adjustment device; 310, drive device; 311, drive motor; 312, eccentric wheel; 313, fixing part; 320, adjustment plate; 321, support rod; 330, connecting part; 400, grasping device; 410, electronic gripper; 420, sliding part; 430, slide trough. DETAILED DESCRIPTION

[0032] The following will be combined with the drawings in the embodiments of the present application to clearly and completely describe the technical solutions in the embodiments of the present application. Obviously, the described embodiments are only part of the embodiments of the present application, rather than all of the embodiments. Based on the embodiments of the present application, all other embodiments obtained by ordinary technicians in this field without making creative work belong to the protection scope of the present application. It is understood that the drawings are only provided for reference and illustration, and are not used to limit the present application. The connection relationship shown in the drawings is only for the convenience of clear description and does not limit the connection method.

[0033] Specifically, Figure 1 As shown, an embodiment of the present application provides an automatic hole inspection device for a PCB board, which mainly detects the hole diameter and hole position of the PCB board through a visual inspection device 120 to select qualified products and unqualified products and classify them. Specifically, the present application is provided with a transportation device 100, a diversion device 200 and an adjustment device 300. Three transportation troughs 110 are arranged on the transportation device 100. The three transportation troughs 110 are arranged in parallel on the transportation device 100, which facilitates the transportation of the PCB board in the transportation trough 110 to quickly pass the PCB board through the adjustment device 300 and enter the diversion device 200.

[0034] Since the PCB board needs to be transported in the transport trough 110, a conveyor belt is arranged at the bottom of the transport trough 110. The running direction of the PCB board on the conveyor belt is the direction from the transport device 100 to the diversion device 200, so as to facilitate the transportation of the PCB board. A visual inspection device 120 is set on the top of the transport trough 110. Cameras 121 are arranged at positions corresponding to the transport trough 110 on the visual inspection device 120. The camera 121 takes an image of the PCB board. The image information after taking the image is calculated by a processor in the visual inspection device 120, and the image is compared with the PCB board of the standard part. When the image of the PCB board in the transport trough 110 matches that of the PCB board of the standard part, the PCB board is a qualified product. When the image of the PCB board in the transport trough 110 does not match that of the PCB board of the standard part, the PCB board is an unqualified product.

[0035] Among them, the visual inspection equipment 120 also includes a processing unit, which controls its adjustment device 300 to select a channel for the PCB board according to whether the image matching information of the PCB board is consistent. When it is a qualified product, the processing unit controls the driving device 310 to drive the adjustment plate 320 to connect the first channel 210 and the transport trough 110, so that the PCB board of the qualified product passes through the adjustment plate 320 and enters the first channel 210; when it is an unqualified product, the processing unit controls the driving device 310 to drive the adjustment plate 320 to connect the second channel 220 and the transport trough 110, so that the PCB board of the unqualified product passes through the adjustment plate 320 and enters the second channel 220.

[0036] To achieve the above process, a diverter device 200 is provided in the embodiment of the present application. The diverter device 200 is located at one end of the transport device 100, specifically at the end position of the conveyor belt running direction in the transport trough 110, and an adjusting device 300 is provided between the diverter device 200 and the transport trough 110. The adjusting device 300 includes the above-mentioned adjusting plate 320 and the driving device 310. The driving device 310 includes a driving motor 311 and an eccentric wheel 312. The eccentric wheel 312 is provided on the output end of the driving motor 311, so that the eccentric wheel 312 can rotate with the rotation of the output end of the driving motor 311. A fixing member 313 is provided on the eccentric wheel 312. The fixing member 313 is specifically located on the eccentric wheel 312 near the edge of the eccentric wheel 312. This position allows the eccentric wheel 312 to rotate when the eccentric wheel 312 rotates. When the driving motor 311 is driven, the fixing member 313 can rotate around the output shaft of the driving motor 311. A connecting member 330 is provided on the outer sleeve of the fixing member 313. The connecting member 330 is rotatably connected to the fixing member 313, and the end of the connecting member 330 away from the fixing member 313 is rotatably connected to the adjusting plate 320, so that when the driving motor 311 is driven, the rotation of the eccentric wheel 312 can drive the position of the fixing member 313 to move, and then the adjusting plate 320 is driven by the connecting member 330. During this process, when the rotation of the eccentric wheel 312 drives the fixing member 313 to be located on the eccentric wheel 312 toward one end of the adjusting plate 320, the connecting member 330 drives the adjusting plate 320 to rotate in a small range, so that the end of the adjusting plate 320 away from the transport trough 110 abuts against the first channel 210. This position is the first position. Figure 2 As shown; when the rotation of the eccentric wheel 312 drives the fixing member 313 to be located at one end of the eccentric wheel 312 away from the adjusting plate 320, the connecting member 330 drives the adjusting plate 320 to move from the first position to the second position. At this time, the end of the adjusting plate 320 away from the transport trough 110 abuts against the second channel 220, as shown in FIG. Figure 3 shown.

[0037] In the present application, a support rod 321 is provided at a position on the adjustment plate 320 corresponding to the connecting member 330, and one end of the connecting member 330 facing the adjustment plate 320 is sleeved outside the support rod 321, so that the connecting member 330 can adjust and rotate the adjusting member through the support rod 321, thereby facilitating the connection between the adjusting member and the first channel 210 or the second channel 220.

[0038] In the above, in order to achieve this technical effect, a fixed rotating shaft is provided at one end of the multiple adjustment plates 320 close to the transport trough 110 in the present application. When the adjustment plates 320 rotate between the first position and the second position, the adjustment plates 320 rotate around the fixed rotating shaft, so that the end of the adjustment plates 320 close to the transport trough 110 is rotatably connected to the transport device 100; at the same time, when the adjustment plates 320 are adjusted between the first position and the second position, they need to be adjusted by the driving device 310. In the embodiment of the present application, the driving device 310 is a servo motor, which is used to realize the technical solution and effect in the present application.

[0039] When the adjustment plate 320 is rotated and adjusted from the first position and the second position, the PCB board will enter the first channel 210 or the second channel 220 through the adjustment plate 320. In the present application, the first channel 210 and the second channel 220 are both arranged in the diversion device 200, wherein the first channel 210 and the second channel 220 in the diversion device 200 are arranged in parallel in the diversion device 200, and the distance between the first channel 210 and the second channel 220 enables the adjustment plate 320 to rotate from one end of the first channel 210 to one end of the second channel 220.

[0040] In the above, when the visual inspection device 120 detects that the PCB board in one of the transport slots 110 is unqualified, the visual inspection device 120 controls the driving device 310 corresponding to its transport slot 110 to drive the connecting member 330, so as to facilitate the rotation of the adjustment plate 320 corresponding to its transport slot 110. The rotation does not affect the transport slots 110 corresponding to other qualified PCB boards, so that the unqualified PCB board enters the second channel 220.

[0041] In the embodiment of the present application, a grabbing device 400 is also provided. The grabbing device 400 is arranged at one end of the transport device 100 away from the diversion device 200, and an electronic gripper 410 is provided in the grabbing device 400 to grab the PCB board. The electronic gripper 410 is an electronic suction cup, and the PCB board is grabbed by the electronic suction cup. At the same time, the electronic suction cup is arranged on a sliding member 420, and the sliding member 420 is slidably arranged on the grabbing device 400. A sliding groove 430 is opened at a position corresponding to the sliding member 420 on the grabbing device 400, and the sliding member 420 slides in the sliding groove 430, so that when the electronic suction cup grabs a PCB board, the program controls the sliding member 420 to move in the sliding groove 430 toward the transport device 100, so that the grabbed PCB board can be placed in the transport groove 110 for the detection of the PCB board.

[0042] The above embodiments are only used to illustrate the technical method of the utility model rather than to limit it. Although the utility model is described in detail with reference to the preferred embodiments, ordinary technicians in the field should understand that the technical method of the utility model can be modified or replaced by equivalents without departing from the spirit and scope of the technical method of the utility model.

Claims

1. A PCB board automatic hole inspection device, characterized in that: include: A transport device, wherein a plurality of transport slots are provided on the transport device, a visual inspection device is mounted on the transport device, and a plurality of cameras are arranged on the visual inspection device, and the cameras are arranged corresponding to the transport slots; A flow dividing device is arranged at a side position of the transport device, the flow dividing device comprises a first channel and a second channel, the first channel and the second channel are arranged at a side position corresponding to the transport trough; an adjusting device, arranged between the transport device and the diverting device, the adjusting device comprising a plurality of driving devices and a plurality of adjusting plates, the plurality of adjusting plates corresponding to the plurality of transport slots one by one, the driving device driving the adjusting plates to rotate so that the transport slots are connected to the first channel or the transport slots are connected to the second channel; Wherein, the visual inspection device is electrically connected to the driving device and the transportation device.

2. The automatic hole inspection device for PCB board according to claim 1 is characterized in that: One end of the adjustment plate close to the transport trough abuts against the transport trough, and one end of the adjustment plate close to the transport trough is rotatably connected to the transport device; One end of the adjustment plate away from the transport trough abuts against the first channel or the second channel; A connecting piece is arranged between the driving device and the adjusting plate, and both ends of the connecting piece are rotatably connected to the driving device and the adjusting plate.

3. The PCB board automatic hole inspection device according to claim 2, characterized in that: The driving device comprises a driving motor and an eccentric wheel, wherein the eccentric wheel is arranged on the output end of the driving motor; A support rod is provided at a position on the adjustment plate corresponding to the connecting member; One end of the connecting member is rotatably connected to the eccentric wheel, and the other end of the connecting member is sleeved outside the supporting rod and rotatably connected to the supporting rod.

4. The automatic hole inspection device for PCB board according to claim 3 is characterized in that: The eccentric wheel is provided with a fixing part, and the fixing part is arranged on the eccentric wheel near the edge of the eccentric wheel.

5. The automatic hole inspection device for PCB board according to claim 4, characterized in that: The first channel is arranged in parallel with the second channel. When the driving device drives the connecting member so that the adjustment plate is located in the first position, the adjustment plate connects the transport trough and the first channel; when the driving device drives the connecting member so that the adjustment plate is located in the second position, the adjustment plate connects the transport trough and the second channel.

6. The automatic hole inspection device for PCB board according to claim 1, characterized in that: The PCB board automatic hole inspection equipment also includes a grabbing device, which is arranged at one end of the transport device away from the diversion device, and the grabbing device grabs the object and places the object in the transport trough.

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