Printed circuit board defect detection equipment

Abstract

The utility model discloses printed circuit board defect detection equipment, which relates to the technical field of circuit boards and comprises a shell, a detection mechanism is arranged above the shell and comprises a movable cover plate and a movable frame, the upper surface of the movable cover plate is fixedly connected with two supporting plates and four fixing columns, and the upper surface of the movable cover plate is fixedly connected with the movable frame. The front face of the shell is fixedly connected with a control panel, the upper surfaces of the two supporting plates are jointly and fixedly connected with a fixed plate, the bottom face of the fixed plate is fixedly connected with an electric telescopic rod, the telescopic end of the electric telescopic rod is fixedly connected with a movable rod, and the bottom end of the movable rod is fixedly connected with a pressing plate. Electronic components on the printed circuit board can be detected through the detection board and the connecting pins, detection results can be displayed and recorded through the control panel, and the problems that power-on testing cannot be carried out on the circuit board, the operation state of the circuit board cannot be detected, and the detection efficiency is high are effectively solved. And the defect detection accuracy of the printed circuit board is reduced.

Description

Technical Field

[0001] This utility model relates to the field of printed circuit board technology, specifically a defect detection device for printed circuit boards. Background Technology

[0002] A circuit board, also known as a printed circuit board, is a substrate used to connect and support electronic components. It has conductive lines and mounting positions for electronic components printed on it. It is an indispensable component of electronic equipment, carrying out signal transmission and power supply between electronic components.

[0003] According to the utility model authorized by announcement number CN216386827U, a defect detection device for printed circuit board products is disclosed, including a base, a connecting plate fixedly arranged on the top inner side of the base, an image acquisition device arranged at the bottom of the connecting plate, an electric push rod fixedly arranged inside the base, and a support base fixedly arranged on the top of the electric push rod.

[0004] While this device uses a rotating movable column to wind around one end of a connecting rope, tightening the rope towards the fixed frame and causing the connecting rope to move a movable rod, which in turn compresses a spring, allowing the clamping block to move to a corner of the printed circuit board (PCB) for automatic clamping, this device only allows for clamping and photographing the PCB to detect surface defects. It cannot perform power-on testing or monitor the PCB's operational status, leading to reduced accuracy in PCB defect detection. Therefore, we provide a PCB defect detection device to address these issues. Utility Model Content

[0005] The purpose of this invention is to overcome the shortcomings of the existing technology and provide a printed circuit board defect detection device.

[0006] To achieve the above objectives, this utility model provides the following technical solution: a printed circuit board defect detection device, comprising a housing, a detection mechanism disposed on the upper part of the housing, the detection mechanism comprising a movable cover plate and a movable frame, two support plates and four fixed columns fixedly connected to the upper surface of the movable cover plate, a control panel fixedly connected to the front of the housing, a fixed plate fixedly connected to the upper surfaces of the two support plates, an electric telescopic rod fixedly connected to the bottom surface of the fixed plate, a movable rod fixedly connected to the telescopic end of the electric telescopic rod, and a pressure rod fixedly connected to the bottom end of the movable rod. The movable cover plate has a detection plate fixedly connected to its inner wall. The upper surface of the detection plate has several identical connection pins fixedly connected to it. The two support plates are fixedly connected to a fixed long plate on their adjacent sides. The front of the fixed long plate is fixedly connected to a limit block. The inner wall of the limit block is in contact with the outer surface of the movable rod. Two springs are provided on the outer side of each set of fixed columns. The bottom end of each set of springs is fixedly connected to the upper surface of the movable cover plate. The inner wall of each set of springs is in contact with the outer surface of the fixed column. The inner wall of the movable frame is fixedly connected to a limit frame.

[0007] Furthermore, a reinforcing frame is fixedly connected to the outer surface of the control panel, and the back of the reinforcing frame is fixedly connected to the front of the outer shell.

[0008] Furthermore, each of the two support plates has a support frame fixedly connected to its opposite side, and the bottom surface of each support frame is fixedly connected to the upper surface of the movable cover plate.

[0009] Furthermore, a protective seat is fixedly connected to the outer surface of the electric telescopic rod, and the upper surface of the protective seat is fixedly connected to the bottom surface of the fixing plate.

[0010] Furthermore, a reinforcing plate is fixedly connected to the outer surface of the telescopic end of the electric telescopic rod, the bottom surface of the reinforcing plate is fixedly connected to the upper surface of the pressure plate, and a buffer pad is fixedly connected to the bottom surface of the pressure plate.

[0011] Furthermore, the inner wall of the reinforcing plate is threaded with four limiting bolts, and the outer surface of each set of limiting bolts is threadedly connected to the inner wall of the pressure plate.

[0012] Compared with existing technologies, this printed circuit board defect detection equipment has the following advantages:

[0013] 1. This utility model, through the cooperation of a movable frame, a limiting frame, a fixed column, and a spring, can fix and limit the position of a printed circuit board, thus playing a fixing and limiting role. Furthermore, through the cooperation of an electric telescopic rod, a movable rod, a pressure plate, and a limiting block, the printed circuit board within the movable frame can be driven to descend, achieving height adjustment and enhancing the device's effectiveness. The detection board and connecting pins can detect electronic components on the printed circuit board, and the control panel can display and record the detection results. This effectively avoids the problem of reduced accuracy in printed circuit board defect detection due to the inability to perform power-on testing or detect the circuit board's operational status. Attached Figure Description

[0014] Figure 1 This is a three-dimensional structural diagram of the printed circuit board defect detection equipment of this utility model.

[0015] Figure 2 This is a three-dimensional structural diagram of the fixed frame of this utility model;

[0016] Figure 3 This is a three-dimensional structural diagram of the pressure plate of this utility model;

[0017] Figure 4 This is a three-dimensional structural diagram of the limiting frame of this utility model.

[0018] In the diagram: 1. Outer shell; 2. Detection mechanism; 201. Movable cover plate; 202. Support plate; 203. Fixing plate; 204. Control panel; 205. Movable frame; 206. Detection plate; 207. Connecting pin; 208. Fixing column; 209. Electric telescopic rod; 210. Limiting block; 211. Movable rod; 212. Pressure plate; 213. Fixing plate; 214. Limiting frame; 215. Spring; 3. Support frame; 4. Reinforcing frame; 5. Protective seat; 6. Reinforcing plate; 7. Limiting bolt; 8. Buffer pad. Detailed Implementation

[0019] The principles and features of this utility model are described below with reference to the accompanying drawings. The examples given are only for explaining this utility model and are not intended to limit the scope of this utility model.

[0020] This embodiment provides a printed circuit board defect detection device. This device is used to facilitate the detection of printed circuit boards in operation, and to facilitate the defect detection of electronic components in operation, thereby improving the detection accuracy.

[0021] See Figure 1 and Figure 2A printed circuit board defect detection device includes a housing 1, and a detection mechanism 2 is arranged on the top of the housing 1. The detection mechanism 2 includes a movable cover plate 201 and a movable frame 205. Two support plates 202 and four fixed columns 208 are fixedly connected to the upper surface of the movable cover plate 201. Support frames 3 are fixedly connected to the two support plates 202 on their opposite sides. The bottom surface of each support frame 3 is fixedly connected to the upper surface of the movable cover plate 201. The support frames 3 can fix and support the support plates 202, thereby enhancing the stability of the device.

[0022] See Figure 1 , Figure 2 and Figure 3 The front of the outer casing 1 is fixedly connected to a control panel 204. The upper surfaces of the two support plates 202 are fixedly connected to a fixing plate 203. The bottom surface of the fixing plate 203 is fixedly connected to an electric telescopic rod 209. The outer surface of the control panel 204 is fixedly connected to a reinforcing frame 4. The back of the reinforcing frame 4 is fixedly connected to the front of the outer casing 1. The reinforcing frame 4 can reinforce the control panel 204 and the outer casing 1, providing a strong fixing effect.

[0023] See Figure 1 , Figure 2 and Figure 3 The telescopic end of the electric telescopic rod 209 is fixedly connected to a movable rod 211, and the bottom end of the movable rod 211 is fixedly connected to a pressure plate 212. The inner wall of the movable cover plate 201 is fixedly connected to a detection plate 206, and the upper surface of the detection plate 206 is fixedly connected to several identical connection pins 207. The outer surface of the electric telescopic rod 209 is fixedly connected to a protective seat 5, and the upper surface of the protective seat 5 is fixedly connected to the bottom surface of the fixed plate 203. Through the protective seat 5, the electric telescopic rod 209 can be protected to avoid external interference during use.

[0024] See Figure 1 , Figure 3 and Figure 4 Two support plates 202 are fixedly connected to a fixed long plate 213 on their adjacent sides. A limit block 210 is fixedly connected to the front of the fixed long plate 213. The inner wall of the limit block 210 is in contact with the outer surface of the movable rod 211. Two springs 215 are provided on the outer side of each set of fixed columns 208. A reinforcing plate 6 is fixedly connected to the outer surface of the telescopic end of the electric telescopic rod 209. The bottom surface of the reinforcing plate 6 is fixedly connected to the upper surface of the pressure plate 212. A buffer pad 8 is fixedly connected to the bottom surface of the pressure plate 212. The reinforcing plate 6 can reinforce the electric telescopic rod 209 and the pressure plate 212 to prevent them from swaying during operation. The buffer pad 8 can play a strong buffering role to prevent the pressure plate 212 from damaging the surface of the circuit board.

[0025] See Figure 1, Figure 3 and Figure 4 The bottom end of each set of springs 215 is fixedly connected to the upper surface of the movable cover plate 201, and the inner wall of each set of springs 215 is in contact with the outer surface of the fixed column 208. The inner wall of the movable frame 205 is fixedly connected to the limiting frame 214. The inner wall of the reinforcing plate 6 is threaded with four limiting bolts 7. The outer surface of each set of limiting bolts 7 is threadedly connected to the inner wall of the pressure plate 212. Through the limiting bolts 7, the position of the reinforcing plate 6 can be restricted, which plays a fixed and limiting role and prevents its position from moving or shifting.

[0026] Working principle: In use, the printed circuit board to be tested is first placed inside the movable frame 205. The position of the printed circuit board is fixed and restricted by the limiting frame 214. Then, by extending the telescopic end of the electric telescopic rod 209, the movable rod 211 is driven to descend, thereby driving the pressure plate 212 to descend. This presses down the printed circuit board inside the movable frame 205 and causes the movable frame 205 to descend, so that the electronic components on the printed circuit board inside the movable frame 205 come into contact with the connection pins 207 on the test board 206, thereby enabling testing. The device performs defect detection on electronic components on printed circuit boards (PCBs), and the control panel 204 displays and saves the defect detection results, enhancing the applicability of the device. After the detection is completed, the telescopic end of the electric telescopic rod 209 retracts, causing the pressure plate 212 to rise. The spring 215 then generates an upward force to lift the movable frame 205, allowing the PCB to be removed after detection. This effectively avoids the problem of reduced accuracy in PCB defect detection due to the inability to perform power-on testing or detect the circuit board's operating status.

[0027] The above description is only a preferred embodiment of the present utility model and is not intended to limit the present utility model. Any modifications, equivalent substitutions, improvements, etc., made within the spirit and principles of the present utility model should be included within the protection scope of the present utility model.

Claims

1. A printed circuit board defect detection device, comprising a housing (1), characterized in that: A detection mechanism (2) is provided above the outer shell (1). The detection mechanism (2) includes a movable cover plate (201) and a movable frame (205). Two support plates (202) and four fixed columns (208) are fixedly connected to the upper surface of the movable cover plate (201). A control panel (204) is fixedly connected to the front of the outer shell (1). A fixed plate (203) is fixedly connected to the upper surfaces of the two support plates (202). An electric telescopic rod (209) is fixedly connected to the bottom surface of the fixed plate (203). A movable rod (211) is fixedly connected to the telescopic end of the electric telescopic rod (209). A pressure plate (212) is fixedly connected to the bottom end of the movable rod (211). A detection plate (205) is fixedly connected to the inner wall of the movable cover plate (201). 206), the upper surface of the detection plate (206) is fixedly connected with several identical connection pins (207), the two support plates (202) are fixedly connected to a fixed long plate (213) on their side that is close to each other, the front of the fixed long plate (213) is fixedly connected with a limiting block (210), the inner wall of the limiting block (210) is in contact with the outer surface of the movable rod (211), two springs (215) are provided on the outer side of each set of fixed columns (208), the bottom end of each set of springs (215) is fixedly connected to the upper surface of the movable cover plate (201), the inner wall of each set of springs (215) is in contact with the outer surface of the fixed column (208), and the inner wall of the movable frame (205) is fixedly connected with a limiting frame (214).

2. The printed circuit board defect detection equipment according to claim 1, characterized in that: The outer surface of the control panel (204) is fixedly connected to a reinforcing frame (4), and the back of the reinforcing frame (4) is fixedly connected to the front of the outer shell (1).

3. The printed circuit board defect detection equipment according to claim 1, characterized in that: Each of the two support plates (202) has a support frame (3) fixedly connected to one side away from the other, and the bottom surface of each support frame (3) is fixedly connected to the upper surface of the movable cover plate (201).

4. The printed circuit board defect detection equipment according to claim 1, characterized in that: The outer surface of the electric telescopic rod (209) is fixedly connected to a protective seat (5), and the upper surface of the protective seat (5) is fixedly connected to the bottom surface of the fixing plate (203).

5. The printed circuit board defect detection equipment according to claim 1, characterized in that: A reinforcing plate (6) is fixedly connected to the outer surface of the telescopic end of the electric telescopic rod (209). The bottom surface of the reinforcing plate (6) is fixedly connected to the upper surface of the pressure plate (212). A buffer pad (8) is fixedly connected to the bottom surface of the pressure plate (212).

6. The printed circuit board defect detection equipment according to claim 5, characterized in that: The inner wall of the reinforcing plate (6) is threaded with four limiting bolts (7), and the outer surface of each set of limiting bolts (7) is threadedly connected to the inner wall of the pressure plate (212).

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