PCB appearance batch detection device

Abstract

The utility model relates to a detection device, in particular to a PCB appearance batch detection device. The PCB appearance batch detection device comprises a supporting frame, a fixing frame, a control screen, a first conveying belt, a second conveying belt, a bottom plate and the like. A fixing frame is connected between the front portions of the reinspection machine supporting frames, a first conveying belt is installed at the bottom of the fixing frame, and a bottom plate is connected between the upper portions of the supporting frames. According to the utility model, the PCBs are continuously conveyed on the first conveying belt for detection, batch detection of the PCBs is realized, the detected PCBs are screened according to the detection result, subsequent picking of defective products is not needed, the working steps are reduced, the process is optimized, the PCBs with appearance defects are redetected through the reinspection machine, and the detection efficiency is improved. And the occurrence of false detection is reduced.

Description

Technical Field

[0001] The utility model relates to a detection device, in particular to a PCB board appearance batch detection device. Background Art

[0002] The appearance inspection of PCB circuit boards is the first link in the production process. Its main purpose is to: detect problems early: Through appearance inspection, obvious problems such as open circuits, short circuits, solder joint defects, component misalignment, etc. can be found in the early stages of the manufacturing process to avoid potential failures from entering the subsequent testing or assembly stages, thereby reducing rework costs and time.

[0003] The utility model with patent announcement number CN211027149U discloses a circuit board appearance inspection device, which relates to the technical field of inspection equipment and aims to solve the problem of high labor costs in the prior art. The key points of its technical solution are that it includes a loading area, a detection area, and a discharging area arranged in sequence, a loading rack is arranged on a working platform and one end of the loading rack extends out of the body; the detection area includes a transparent detection platform and a CCD detection module arranged on the upper and lower sides of the transparent detection platform; the material picking device includes a suction cup and a vacuum suction cup manipulator for moving the circuit board in the loading area to the transparent detection platform; and a discharging area carried on the working platform. When it is necessary to inspect the circuit board, the vacuum suction cup manipulator sucks the circuit board on the loading rack to the transparent detection platform. After the inspection is completed, the vacuum suction cup manipulator sucks the circuit board to the discharging area. When the above-mentioned device is testing, there is no need to manually place the circuit boards on the transparent testing platform one by one. At the same time, it can classify the good and defective products after testing, without manually picking out the defective products, thereby effectively reducing the labor cost. However, during the testing, the test results will be affected by many factors. When testing defective circuit boards, it may be a false detection, and the good products may be classified as defective. This will result in a lot of time spent on determining the defective problem during later manual repairs. Utility Model Content

[0004] In order to overcome the disadvantages that the detection results of existing equipment are affected by many factors during detection, the detection of defective PCB boards may result in false detection, and good products may be classified as defective, which will result in a lot of time spent on determining the defective problem during later manual repair, resulting in a waste of time, the purpose of the utility model is to provide a PCB board appearance batch detection device provided with a re-inspection machine to re-inspect PCB boards detected with appearance defects, thereby reducing the occurrence of false detection.

[0005] The technical scheme of the utility model is: a PCB board appearance batch detection device, including a support frame, a fixed frame, a control screen, a conveyor belt 1, a conveyor belt 2, a bottom plate, a pallet, an appearance detection machine, a slide rail, a rack, a transmission group, a protective cover, a material-retrieving manipulator and a re-inspection machine, a fixed frame is connected between the front of the support frame, a conveyor belt 1 is installed at the bottom of the fixed frame, a bottom plate is connected between the upper parts of the support frame, conveyor belts 2 are installed on the support frame, pallets are fixedly connected between the conveyor belt 1 and the two conveyor belts 2, the conveyor belt 1 and the pallet on the right conveyor belt are divided into two sections, a slide rail is fixedly connected to the upper part of the bottom plate, a protective cover is slidably provided on the upper part of the slide rail, and a protective cover is provided on the upper part of the slide rail. A material-grabbing robot is installed on the right side inside the protective cover, and the material-grabbing robot consists of a cylinder and a suction cup frame. A transmission group is installed on the left side inside the protective cover, and the transmission group consists of a motor and a gear. A rack is fixedly connected to the rear part of the slide rail, and the rack is meshed with the gear of the transmission group. Appearance inspection machines are installed on the front side of the lower part of the base plate and the lower part of the fixed frame through brackets. The two appearance inspection machines are symmetrically arranged and both face the direction of conveyor belt one. Re-inspection machines are installed on the lower right side of the base plate and the lower left part of the right bracket through brackets. The two re-inspection machines are symmetrically arranged and both face conveyor belt two on the right side. A control screen is installed on the bracket on the base plate where the appearance inspection machine is installed.

[0006] Furthermore, it also includes a jet printer and a nozzle. The jet printer is installed on the lower right side of the bottom plate, and the lower right part of the jet printer is connected to the nozzle through a pipeline.

[0007] Furthermore, it also includes roller brush 1 and roller brush 2. Roller brush 1 is fixedly arranged between the front parts of conveyor belt 1 and synchronous belt, and roller brush 2 is rotatably installed on the front side of the upper part of conveyor belt 1.

[0008] Furthermore, a baffle is included, and the rear side of the top of the rear section support plate on the conveyor belt is connected with the baffle.

[0009] Furthermore, when conveyor belt 1 and conveyor belt 2 transport PCB boards, the running speed is uniform and slow.

[0010] Compared with the prior art, the utility model has the following advantages: the utility model realizes batch detection of PCB boards by continuously conveying PCB boards on a conveyor belt for detection, and screens the detected PCB boards according to the detection results, without the need to subsequently sort out defective products, thereby reducing work steps, optimizing the process, and re-inspecting PCB boards with appearance defects through a re-inspection machine to reduce the occurrence of mis-detection.

[0011] When people are repairing a PCB board with appearance defects, the utility model can quickly repair the PCB board by printing the problems on the PCB board by the inkjet printer, which can effectively help people to quickly find the problems during the later repair, reduce the repair time, and improve work efficiency. BRIEF DESCRIPTION OF THE DRAWINGS

[0012] Figure 1 It is a three-dimensional structural schematic diagram of the utility model.

[0013] Figure 2 This is a three-dimensional structural schematic diagram of the utility model without the conveyor belt 1.

[0014] Figure 3 It is a three-dimensional structural schematic diagram of the utility model's re-inspection machine, inkjet printer, inkjet head and other components.

[0015] Figure 4 It is a three-dimensional structural schematic diagram of the transmission group, protective cover, material-retrieving manipulator and other components of the utility model.

[0016] Figure 5 It is a three-dimensional structural schematic diagram of the roller brush 1 and roller brush 2 of the utility model.

[0017] Figure numbers: 1. Support frame, 2. Fixed frame, 21. Control screen, 3. Conveyor belt 1, 4. Conveyor belt 2, 41. Bottom plate, 5. Pallet, 6. Appearance inspection machine, 7. Slide rail, 71. Rack, 72. Transmission group, 8. Protective cover, 9. Material retrieving robot, 10. Re-inspection machine, 11. Inkjet printer, 12. Print head, 13. Roller brush 1, 14. Roller brush 2, 15. Baffle. DETAILED DESCRIPTION

[0018] The utility model is described in detail below in conjunction with the accompanying drawings.

[0019] Embodiment 1: A PCB board appearance batch detection device, such as Figure 1-5As shown, it includes a support frame 1, a fixed frame 2, a control screen 21, a conveyor belt 1 3, a conveyor belt 2 4, a bottom plate 41, a support plate 5, an appearance inspection machine 6, a slide rail 7, a rack 71, a transmission group 72, a protective cover 8, a material-retrieving manipulator 9 and a re-inspection machine 10. The front of the support frame 1 is connected with a fixed frame 2, and a conveyor belt 1 3 is installed at the bottom of the fixed frame 2. The front of the conveyor belt 1 3 will be placed with a PCB board to be inspected. The transmission direction of the conveyor belt 1 3 is from front to back. The upper part of the support frame 1 is connected with a bottom plate 41, and the support frame 1 is installed with a conveyor belt 2 4. The two conveyor belts 2 4 are symmetrically arranged, and the transmission The conveyor belt 24 on the left is used to transport the qualified PCB boards after inspection, and the conveyor belt 24 on the right is used to transport the PCB boards with appearance defects after inspection. The front side of the lower part of the bottom plate 41 and the lower part of the fixing frame 2 are both installed with appearance inspection machines 6 through brackets. The two appearance inspection machines 6 are symmetrically arranged and both face the direction of the conveyor belt 1 3. The lower right side of the bottom plate 41 and the lower left part of the right bracket are both installed with re-inspection machines 10 through brackets. The two re-inspection machines 10 are symmetrically arranged and both face the conveyor belt 2 4 on the right. The bracket on which the appearance inspection machine 6 is installed on the bottom plate 41 is installed with a control screen 21. The control screen 21 controls the power components and detection devices on the device through signal connection, and the detection results of the appearance detection machine 6 and the re-inspection machine 10 will be displayed through the control screen 21. A pallet 5 is fixedly connected between the conveyor belt 1 3 and the two conveyor belts 2 4. The pallet 5 is used to lift the moving PCB board to prevent the PCB board from falling during transportation. The conveyor belt 1 3 and the pallet 5 on the right conveyor belt are divided into two sections: the vacant part is used for the appearance detection machine 6 and the re-inspection machine 10 to scan the lower part of the PCB board during detection. The upper part of the conveyor belt 1 bottom plate 41 is fixedly connected with a slide rail 7, and the upper part of the slide rail 7 is provided with an anti-sliding type. Protective cover 8, a material-grabbing robot 9 is installed on the right side inside the protective cover 8, and the material-grabbing robot 9 is composed of a cylinder and a suction cup frame. A transmission group 72 is installed on the left side inside the protective cover 8, and the transmission group 72 is composed of a motor and a gear. A rack 71 is fixedly connected to the rear part of the slide rail 7, and the rack 71 is meshed with the gear of the transmission group 72. When the suction cup frame of the material-grabbing robot 9 picks up the material, the motor on the transmission group 7 rotates, driving the gear to rotate. Under the meshing of the gear and the rack 72, the protective cover 8 will drive the material-grabbing robot 9 to move forward or backward on the guide rail, so as to place the material on the conveyor belt 2 4 on the left or right side.

[0020] When the PCB board is moved to the position where the pallet 5 on the conveyor belt 3 is vacant, the appearance inspection machine 6 on the upper and lower sides of the conveyor belt 3 will perform a detailed scan of the upper and lower surfaces of the PCB board being transported, and compare the appearance information of the PCB board one by one through the data pre-stored in the control screen 21, and the inspection result will be transmitted to the material-retrieving manipulator 9. When the inspection result of the PCB board is normal, the material-retrieving manipulator 9 will extend the suction cup frame downward, and after sucking up the PCB board, the cylinder movable rod on the material-retrieving machine will retract upward, and drive the protective cover 8 and the material-retrieving manipulator 9 to move left on the slide rail 7 through the gear rotation of the transmission group 72, and the transmission The PCB board input to the rear of the upper conveyor belt 1 3 is taken and placed on the conveyor belt 2 4 on the left. The conveyor belt 2 4 on the left will transport the PCB board to the left. When the PCB board is inspected, if the PCB board has appearance defects, the material-taking robot 9 will place it on the conveyor belt 2 4 on the right. The conveyor belt 2 4 on the right will transport it to the right. The re-inspection machines 10 installed on the upper and lower sides of the conveyor belt 2 4 on the right will scan and re-inspect the transmitted PCB board. Through the secondary inspection, the occurrence of wrong inspection by the appearance inspection machine 6 is reduced. The inspection result will be transmitted to the control screen 21. People determine the inspection result through the re-inspection information displayed on the control screen 21. By continuously transporting PCB boards on the conveyor belt 3 for inspection, batch inspection of PCB boards is realized. At the same time, the inspected PCB boards are screened according to the inspection results on the conveyor belt 3, and there is no need to subsequently select defective products, reduce work steps, optimize the process, and re-inspect the PCB boards detected with appearance defects through the re-inspection machine 10 to reduce the occurrence of wrong inspections.

[0021] Embodiment 2: Based on embodiment 1, Figure 1-2 As shown, it also includes a printer 11 and a nozzle 12. The printer 11 is installed on the lower right side of the bottom plate 41. The lower right side of the printer 11 is connected to the nozzle 12 through a pipeline. The printer 11 is connected to the control screen 21 through a signal. After the re-inspection machine 10 has been inspected, the control screen 21 will output the inspection result on the printer 11, and the printer 11 will spray text of the feedback problem through the nozzle 12 and print it on the PCB board.

[0022] like Figure 1 and Figure 5As shown: it also includes a roller brush 13 and a roller brush 2 14. The conveyor belt 1 and the conveyor belt 2 are both composed of two groups of synchronous belts, a driving motor, a rotating shaft and a mounting frame. A roller brush 13 is fixedly provided between the front parts of the synchronous belt groups of the conveyor belt 3. The roller brush 13 will rotate synchronously with the conveying of the conveyor belt 3, and the rotation direction is the same. A roller brush 2 14 is rotatably installed on the front side of the upper part of the conveyor belt 3. When the PCB board is transmitted on the conveyor belt 3, it will pass between the roller brush 13 and the roller brush 2 14, so as to clean the upper and lower board surfaces of the PCB board to a certain extent.

[0023] like Figure 5 As shown: a baffle 15 is also included, and a baffle 15 is connected to the rear side of the top of the rear section support plate 5 on the conveyor belt 3. The baffle 15 installed on the conveyor belt 3 support plate 5 will block the PCB board that has been transported to the rear of the conveyor belt 3 after inspection.

[0024] When the conveyor belt 3 is transmitting the PCB board, the PCB board will first contact the roller brush 13 and the roller brush 2 14 on the conveyor belt 3. The rolling roller brush 13 and the roller brush 2 14 that rolls with the PCB board transmission will roll and clean the surface of the PCB board, which will reduce the dust and dirt on the PCB board to a certain extent and improve the detection accuracy. The baffle 15 installed on the conveyor belt 3 support plate 5 will block the PCB board that has been transported to the rear of the conveyor belt 3 after detection, so as to avoid the material picking robot 9 from picking up the material in time and the PCB board from falling during transmission. When a PCB board with appearance defects is transmitted on the conveyor belt 24 on the right, after the inspection by the re-inspection machine 10 is completed, the inkjet printer 11 located on the right side of the re-inspection machine 10 will spray ink onto the transmitted PCB board through the nozzle 12. The inkjet printer 11 will spray the problems detected by the PCB board on the PCB board by printing text. When people repair the PCB board with appearance defects, they can quickly repair the PCB board through the printed problems, which can effectively help people quickly find problems during repairs at a later time, reduce repair time, and improve work efficiency.

[0025] In a preferred embodiment, when conveyor belt 1 3 and conveyor belt 2 4 transport PCB boards, they run at a uniform and slow speed. The slow transmission speed makes it easier for the appearance inspection machine 6 and the re-inspection machine 10 to scan the moving PCB boards more clearly.

[0026] The above embodiments are only preferred embodiments of the present invention and are not intended to limit the scope of implementation of the present invention. Therefore, any equivalent changes made to the contents described in the claims of the present invention should be included in the scope of the claims of the present invention.

Claims

1. A PCB board appearance batch inspection device, comprising a support frame (1), a fixed frame (2), a control screen (21), a conveyor belt 1 (3), a conveyor belt 2 (4), a bottom plate (41) and a support plate (5), wherein the front part of the support frame (1) is connected with the fixed frame (2), the bottom of the fixed frame (2) is equipped with the conveyor belt 1 (3), the upper part of the support frame (1) is connected with the bottom plate (41), the support frame (1) is equipped with the conveyor belt 2 (4), the conveyor belt 1 (3) and the two conveyor belts 2 (4) are fixedly connected with the support plate (5), and the conveyor belt 1 (3) and the support plate (5) on the right conveyor belt are divided into two sections; Its characteristics are: The invention also comprises an appearance inspection machine (6), a slide rail (7), a rack (71), a transmission group (72), a protective cover (8), a material taking manipulator (9) and a re-inspection machine (10). The upper part of the bottom plate (41) is fixedly connected with the slide rail (7). The upper part of the slide rail (7) is slidably provided with a protective cover (8). The right side of the protective cover (8) is installed with a material taking manipulator (9). The material taking manipulator (9) is composed of a cylinder and a suction cup frame. The left side of the protective cover (8) is installed with a transmission group (72). The transmission group (72) is composed of a motor and a gear. The rear part of the slide rail (7) is fixedly connected with the material taking manipulator (9). A rack (71) is provided, the rack (71) meshing with the gear of the transmission group (72); the front side of the lower part of the bottom plate (41) and the lower part of the fixed frame (2) are both mounted with appearance inspection machines (6) through brackets; the two appearance inspection machines (6) are symmetrically arranged and both face the direction of the conveyor belt 1 (3); the lower right side of the bottom plate (41) and the lower left part of the right bracket are both mounted with re-inspection machines (10) through brackets; the two re-inspection machines (10) are symmetrically arranged and both face the conveyor belt 2 (4) on the right; and a control screen (21) is mounted on the bracket on which the appearance inspection machines (6) are mounted on the bottom plate (41).

2. A PCB board appearance batch detection device as claimed in claim 1, characterized in that: It also includes a jet printer (11) and a nozzle (12). The jet printer (11) is installed on the lower right side of the bottom plate (41), and the lower right side of the jet printer (11) is connected to the nozzle (12) through a pipeline.

3. A PCB board appearance batch detection device as claimed in claim 2, characterized in that: It also includes a roller brush 1 (13) and a roller brush 2 (14). The roller brush 1 (13) is fixedly arranged between the front parts of the synchronous belt of the conveyor belt 1 (3), and the roller brush 2 (14) is rotatably installed on the front side of the upper part of the conveyor belt 1 (3).

4. A PCB board appearance batch detection device as claimed in claim 3, characterized in that: It also includes a baffle (15), and the baffle (15) is connected to the rear side of the top of the rear section support plate (5) on the conveyor belt (3).

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