PCB welding spot detection device

Abstract

The utility model discloses a PCB (Printed Circuit Board) welding spot detection device, which comprises a rack, a fixed frame is fixed on one side above the rack, a first conveying belt is arranged above the fixed frame, a first motor is fixed on one side of the fixed frame, a fixed bolt penetrates through one side of the fixed frame, and the other side of the fixed bolt is movably connected with a baffle plate; according to the PCB welding spot detection device, a servo motor, a lead screw, a movable sleeve, a connecting block, a mounting frame and a second conveying belt are used in cooperation, a PCB is conveyed to the position above the second conveying belt and detected through a camera, and when it is detected that welding spots of the PCB are unqualified, a switch of the servo motor is turned on, the movable sleeve is driven to slide, the second conveying belt slides out, and the PCB is conveyed to the position above the second conveying belt. The defective PCBs above the second conveying belt can be conveyed into the defective product box, then the second conveying belt slides back to be aligned with the first conveying belt, the defective PCBs can be automatically picked out through the device, and time and labor are saved.

Description

Technical Field

[0001] The utility model relates to the technical field related to PCB boards, in particular to a PCB board solder joint detection device. Background Art

[0002] PCB, whose Chinese name is printed circuit board, is also called printed circuit board. It is an important electronic component, a support for electronic components, and a carrier for electrical connection of electronic components. Since it is made by electronic printing technology, it is called a "printed" circuit board. Almost every electronic device, from electronic watches and calculators to computers, communication electronic equipment, and military weapon systems, as long as there are electronic components such as integrated circuits, must use printed boards to make electrical interconnections between various components. Solder joint detection is required during the PCB board processing process.

[0003] However, the existing PCB board solder joint detection device cannot directly pick out the defective PCB boards after detecting PCB boards with unqualified solder joints, which increases the time for staff to manually pick out defective PCB boards, is time-consuming and labor-intensive, and has poor practicality. Therefore, the present application provides a PCB board solder joint detection device to meet the needs. Utility Model Content

[0004] The purpose of the utility model is to provide a PCB solder joint detection device to solve the problems raised in the above background technology.

[0005] To achieve the above-mentioned purpose, the utility model provides the following technical solutions: a PCB board solder joint detection device, comprising a frame, a fixing frame is fixed on one side above the frame, a first conveyor belt is installed above the fixing frame, a first motor is fixed on one side of the fixing frame, a fixing bolt passes through one side of the fixing frame, a baffle is movably connected to the other side of the fixing bolt, a slide is arranged above the frame, a servo motor is fixed on one side above the slide, a lead screw is installed on one output end of the servo motor, a movable sleeve is provided on the outer side of the lead screw, a connecting block is fixed above the movable sleeve, a mounting frame is fixed above the connecting block, a second conveyor belt is installed above the mounting frame, and a second motor is fixed on one side of the mounting frame.

[0006] Preferably, the baffle is threadedly connected to the fixing frame via fixing bolts, and the baffle is symmetrically arranged with respect to the central axis of the fixing frame.

[0007] Preferably, a support column is fixed on one side above the rack, a cross bar is fixed above the support column, an electric slide rail is installed on one side of the cross bar, a slider is installed on one side of the electric slide rail, and a camera is installed on one side of the slider.

[0008] Preferably, the camera forms a sliding structure through an electric slide rail and a cross bar, and the electric slide rail is used in conjunction with a slider.

[0009] Preferably, the movable sleeve is consistent with the size of the screw rod, and the movable sleeve is symmetrically arranged with respect to the central axis of the connecting block.

[0010] Preferably, the mounting frame forms a sliding structure through a movable sleeve and a slide table, and the servo motor is used in conjunction with a lead screw.

[0011] Preferably, a defective product box is fixed to one side of the frame, and the defective product box is arranged corresponding to the second conveyor belt.

[0012] Compared with the prior art, the beneficial effects of the utility model are:

[0013] 1. This PCB solder joint detection device uses a servo motor, a screw rod, a movable sleeve, a connecting block, a mounting frame and a second conveyor belt. When the PCB board is transported to the second conveyor belt, it is inspected by a camera. When the solder joint of the PCB board is detected to be unqualified, the servo motor is turned on to drive the movable sleeve to slide, and the second conveyor belt is slid out, so that the defective PCB board above the second conveyor belt can be transported to the defective box, and then the second conveyor belt is slid back to align with the first conveyor belt. The device can automatically pick out the defective PCB board, saving time and labor;

[0014] 2. The PCB solder joint detection device is provided with a first conveyor belt, a first motor, a fixing bolt and a baffle. The first conveyor belt is provided to facilitate the transportation of the PCB board, thereby improving the detection efficiency. The baffle can limit the two sides of the PCB board to prevent the PCB board from falling.

[0015] 3. This PCB solder joint detection device facilitates the adjustment of the position of the camera on one side of the cross bar through the arrangement of the cross bar, the electric slide rail, the slider and the camera, so that the PCB board can be photographed at different positions, avoiding the situation where there is a blind spot in the shooting that leads to failure to detect, thereby improving the detection accuracy of the device. BRIEF DESCRIPTION OF THE DRAWINGS

[0016] Figure 1 It is a schematic diagram of the overall structure of the utility model;

[0017] Figure 2 It is a structural schematic diagram of the first conveyor belt of the utility model;

[0018] Figure 3 It is a structural schematic diagram of the camera of the utility model;

[0019] Figure 4 It is a structural schematic diagram of the slide table of the utility model;

[0020] Figure 5 It is a structural schematic diagram of the second conveyor belt of the utility model.

[0021] In the figure: 1. frame; 2. fixing frame; 3. first conveyor belt; 4. first motor; 5. fixing bolt; 6. baffle; 7. support column; 8. cross bar; 9. electric slide rail; 10. slider; 11. camera; 12. slide table; 13. servo motor; 14. lead screw; 15. movable sleeve; 16. connecting block; 17. mounting frame; 18. second conveyor belt; 19. second motor; 20. defective box. DETAILED DESCRIPTION

[0022] The following will be combined with the drawings in the embodiments of the utility model to clearly and completely describe the technical solutions in the embodiments of the utility model. Obviously, the described embodiments are only part of the embodiments of the utility model, not all of the embodiments. Based on the embodiments in the utility model, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the utility model.

[0023] See also Figure 1-3 The utility model provides a technical solution: a PCB board solder joint detection device, including a frame 1, a fixing frame 2 is fixed on one side above the frame 1, a first conveyor belt 3 is installed above the fixing frame 2, a first motor 4 is fixed on one side of the fixing frame 2, a fixing bolt 5 is passed through one side of the fixing frame 2, a baffle 6 is movably connected to the other side of the fixing bolt 5, the baffle 6 is threadedly connected to the fixing frame 2 through the fixing bolt 5, the baffle 6 is symmetrically arranged with the central axis of the fixing frame 2, the arrangement of the first conveyor belt 3 facilitates the transportation of the PCB board, and improves the detection efficiency, and the baffle 6 can perform both sides of the PCB board. The rack 1 is provided with a support column 7 fixed on one side above the rack 1, a cross bar 8 fixed on the top of the support column 7, an electric slide rail 9 installed on one side of the cross bar 8, a slider 10 installed on one side of the electric slide rail 9, and a camera 11 installed on one side of the slider 10, so that the position of the camera 11 on one side of the cross bar 8 can be adjusted to shoot the PCB board at different positions, so as to avoid the situation that the PCB board cannot be detected due to the shooting blind angle. The camera 11 forms a sliding structure with the cross bar 8 through the electric slide rail 9, and the electric slide rail 9 and the slider 10 are used together to improve the detection accuracy of the device;

[0024] See also Figure 1 , Figure 4 and Figure 5A slide 12 is arranged above the frame 1, a servo motor 13 is fixed on one side above the slide 12, a lead screw 14 is installed on one output end of the servo motor 13, a movable sleeve 15 is sleeved on the outer side of the lead screw 14, the movable sleeve 15 is consistent with the size of the lead screw 14, the movable sleeve 15 is symmetrically arranged with the central axis of the connecting block 16, the lead screw 14 is driven to rotate by the servo motor 13, and then the movable sleeve 15 is driven to slide on the outer side of the lead screw 14, a connecting block 16 is fixed above the movable sleeve 15, and a mounting frame 17 is fixed above the connecting block 16, and the mounting frame 17 forms a sliding connection with the slide 12 through the movable sleeve 15 The structure is as follows: the servo motor 13 and the lead screw 14 are used together to facilitate the adjustment of the position of the second conveyor belt 18, and the defective PCB boards can be automatically picked out. The second conveyor belt 18 is installed above the mounting frame 17, and a second motor 19 is fixed to one side of the mounting frame 17. A defective box 20 is fixed to one side of the frame 1, and the defective box 20 is arranged corresponding to the second conveyor belt 18. When the solder joints of the PCB board are detected to be unqualified, the switch of the servo motor 13 is turned on to drive the movable sleeve 15 to slide, and the second conveyor belt 18 is slid out, so that the defective PCB boards above the second conveyor belt 18 can be transported to the defective box 20.

[0025] Working principle: When using the PCB solder joint detection device, firstly, connect the external power supply, then place the PCB board on the first conveyor belt 3, turn on the switch of the first motor 4 to transport the PCB board, and after the PCB board is transported to the second conveyor belt 18, it is photographed by the camera 11, and the photographed PCB board photo is detected and analyzed by the computer. If the detection is qualified, the PCB board is transported out from the other side of the first conveyor belt 3. Secondly, when it is detected that the solder joint of the PCB board is unqualified, turn on the switch of the servo motor 13, drive the movable sleeve 15 to slide, and the second conveyor belt 18 is moved to the second conveyor belt 18. The second conveyor belt 18 slides out, so that the defective PCB boards above the second conveyor belt 18 can be conveyed to the defective box 20, and finally the second conveyor belt 18 is slid back to align with the first conveyor belt 3, so as to automatically pick out the defective PCB boards, saving time and effort. When the device is not in use, the external power supply of the device is cut off. The model of the first motor 4 and the second motor 19 is ZD-2HD542, the model of the electric slide rail 9 is FSK30, and the model of the servo motor 13 is YE2-132S-4. In this way, the use process of the PCB board solder joint detection device is completed.

[0026] Although embodiments of the present invention have been shown and described, it will be appreciated by those skilled in the art that various changes, modifications, substitutions and variations may be made to the embodiments without departing from the principles and spirit of the present invention, and that the scope of the present invention is defined by the appended claims and their equivalents.

Claims

1. A PCB solder joint detection device, comprising a frame (1), characterized in that: A fixing frame (2) is fixed on one side above the frame (1), a first conveyor belt (3) is installed on the top of the fixing frame (2), a first motor (4) is fixed on one side of the fixing frame (2), a fixing bolt (5) passes through one side of the fixing frame (2), a baffle (6) is movably connected to the other side of the fixing bolt (5), a slide (12) is arranged above the frame (1), a servo motor (13) is fixed on one side above the slide (12), a lead screw (14) is installed on one output end of the servo motor (13), a movable sleeve (15) is sleeved on the outer side of the lead screw (14), a connecting block (16) is fixed on the top of the movable sleeve (15), a mounting frame (17) is fixed on the top of the connecting block (16), a second conveyor belt (18) is installed on the top of the mounting frame (17), and a second motor (19) is fixed on one side of the mounting frame (17).

2. A PCB solder joint detection device according to claim 1, characterized in that: The baffle (6) is threadedly connected to the fixing frame (2) via fixing bolts (5), and the baffle (6) is symmetrically arranged with respect to the central axis of the fixing frame (2).

3. A PCB solder joint detection device according to claim 1, characterized in that: A support column (7) is fixed on one side above the frame (1), a cross bar (8) is fixed above the support column (7), an electric slide rail (9) is installed on one side of the cross bar (8), a slider (10) is installed on one side of the electric slide rail (9), and a camera (11) is installed on one side of the slider (10).

4. A PCB solder joint detection device according to claim 3, characterized in that: The camera (11) forms a sliding structure through an electric slide rail (9) and a cross bar (8), and the electric slide rail (9) is used in conjunction with a slider (10).

5. A PCB solder joint detection device according to claim 1, characterized in that: The movable sleeve (15) is consistent with the size of the screw rod (14), and the movable sleeve (15) is symmetrically arranged with respect to the central axis of the connecting block (16).

6. A PCB solder joint detection device according to claim 1, characterized in that: The mounting frame (17) forms a sliding structure with the slide table (12) through a movable sleeve (15), and the servo motor (13) is used in conjunction with the screw rod (14).

7. A PCB solder joint detection device according to claim 1, characterized in that: A defective product box (20) is fixed to one side of the frame (1), and the defective product box (20) is arranged corresponding to the second conveyor belt (18).

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