Equipment for automatically detecting defects of printed circuit board

Abstract

The utility model discloses a printed circuit board defect automatic detection device, which relates to the technical field of printed circuit board defect automatic detection, and comprises a fixed seat, the middle part of the top end of the fixed seat is fixedly connected with a placing plate, the two sides of the placing plate are fixedly connected with reinforcing plates, and the front part of the top end of each reinforcing plate is fixedly connected with a cleaning assembly. A supporting plate is fixedly connected to the rear portion of the top end of the reinforcing plate, an adjusting assembly is fixedly connected to the top end of the supporting plate, and the adjusting assembly comprises a connecting frame fixedly connected to the top end of the supporting plate; according to the circuit board defect detector, through the arrangement of the adjusting assembly, when a worker operates the device for use, the position of the circuit board defect detector body can be rapidly and accurately adjusted only by starting the servo motor and controlling the rotating speed and the rotating direction of the servo motor, manual repeated adjustment is not needed, the detection efficiency and precision are greatly improved, and the labor intensity of workers is reduced. And the device can adapt to detection of printed circuit boards of various sizes and specifications.

Description

TECHNICAL FIELD

[0001] The utility model relates to printed wiring board defect automatic detection technical field, concretely is printed wiring board defect automatic detection equipment. BACKGROUND

[0002] In the production process of printed wiring board, defect detection is the key link to ensure product quality, and the existing printed wiring board defect detection equipment has many problems: on the one hand, the adjustment of detection position is not flexible and accurate enough, it is difficult to adapt to the detection needs of printed wiring boards of different sizes and specifications, resulting in low detection efficiency and difficult to guarantee detection accuracy; on the other hand, before detection, there may be dust, stains and other pollutants on the surface of printed wiring board, which will affect the accuracy of detection results, but the existing equipment often lacks effective cleaning device, in addition, some equipment is not stable enough when placing printed wiring board, which is easy to cause the sliding or shaking of the board, further affecting the detection effect. Therefore, it has important practical significance to develop a new type of printed wiring board defect automatic detection equipment.

[0003] The existing printed wiring board defect automatic detection equipment has the following problems in use:

[0004] (1) Because of the traditional manual adjustment or simple mechanical adjustment mode, when facing printed wiring boards of different sizes, the adjustment of detection position needs to consume a lot of time and effort, and it is difficult to guarantee the accuracy of each adjustment, which makes it necessary to frequently recalibrate the equipment when detecting different batches of products, seriously affecting the production efficiency, and the inaccurate detection results caused by adjustment error are easy to occur;

[0005] (2) Lack of special cleaning device, can only rely on manual wiping, not only low efficiency, but also difficult to guarantee the cleaning effect, easy to miss some subtle pollutants, thereby interfering with the identification of defect detection equipment to the board, leading to misjudgment or omission.

[0006] In view of the above problems, the utility model provides printed wiring board defect automatic detection equipment. UTILITY MODEL CONTENTS

[0007] The utility model aims at providing printed wiring board defect automatic detection equipment, and the utility model realizes the efficient and accurate detection of printed wiring boards of different specifications through flexible adjustment assembly, effective cleaning assembly and stable placement structure, so as to solve the problems in the background art.

[0008] In order to realize the above-mentioned purpose, the utility model provides the following technical scheme: printed circuit board defect automatic detection equipment, including fixed base, the middle part fixed connection of fixed base top is provided with the placement board, both sides of placement board are fixedly connected with the reinforcing plate, the front of reinforcing plate top is fixedly connected with the cleaning assembly, the rear of reinforcing plate top is fixedly connected with the supporting plate, the top of supporting plate is fixedly connected with the adjusting assembly, adjusting assembly includes the connecting frame fixedly connected in the top of supporting plate, one side of connecting frame is fixedly connected with the motor box, the inside fixed connection of motor box has the servo motor.

[0009] Further, the output end of the servo motor is fixedly connected with a transmission rod, one end of the transmission rod is fixedly connected with a threaded rod, which achieves the conversion of the rotary motion of the servo motor into the rotation of the threaded rod, and provides a power source for subsequent linear displacement adjustment.

[0010] Further, one end of the threaded rod is fixedly connected with a bearing, and one end of the bearing is fixedly connected to the inner wall of the connecting frame, which achieves the support of the threaded rod, ensures its stability during rotation, reduces shaking and deviation, and ensures accurate transmission.

[0011] Further, the surface of the threaded rod is threadedly connected with a sliding block, the sliding block is slidingly connected to the inner wall of the connecting frame, and the bottom end of the sliding block is fixedly connected with a circuit board defect detector body, which achieves the use of the screw transmission principle, when the threaded rod rotates, the sliding block can move linearly along the axial direction of the threaded rod, thereby driving the circuit board defect detector body to move within the connecting frame, realizing accurate adjustment of the detection position, and adapting to the detection requirements of printed circuit boards of different thicknesses and sizes.

[0012] Further, the cleaning assembly includes a fixed plate fixedly connected to the front end of the reinforcing plate, and the surface of the fixed plate is fixedly connected with a sliding rod, which achieves the provision of a sliding track for the sliding plate and ensures the movement stability of the cleaning assembly during operation.

[0013] Further, the surface of the sliding rod is slidingly connected with a sliding plate, the bottom end of the sliding plate is fixedly connected with cleaning cotton, and the top end of the sliding plate is fixedly connected with a control handle, which achieves the pushing of the sliding plate on the sliding rod by the control handle, making the cleaning cotton fully contact with the surface of the printed circuit board, thereby cleaning the surface of the circuit board, removing dust, stains and other pollutants, and ensuring that the detection result is not disturbed by the pollutants.

[0014] Further, the front of the top end of the placing plate is provided with a square slot, and the rear of the top end of the placing plate is fixedly connected with an antiskid pad, so that the square slot can be used for placing cleaning tools or small detection auxiliary articles, and the antiskid pad increases the friction between the placing plate and the printed circuit board, prevents the printed circuit board from sliding or shaking due to vibration or improper operation during detection, and provides a stable basis for detection.

[0015] Compared with the prior art, the utility model has the advantages that:

[0016] The printed circuit board defect automatic detection equipment provided by the utility model,

[0017] (1) Through the setting of the adjusting assembly, when the personnel operating device is used, only the servo motor needs to be started and the rotating speed and rotating direction thereof are controlled, so that the position of the circuit board defect detector body can be quickly and accurately adjusted, manual repeated adjustment is not needed, the detection efficiency and precision are greatly improved, and the printed circuit boards of various sizes and specifications can be detected.

[0018] (2) Through the setting of the cleaning assembly, when the personnel operating device is used, the operator can easily clean the surface of the printed circuit board by using the control handle to operate the cleaning cotton, contaminants are effectively removed, the interference of the contaminants on the detection result is avoided, and the accuracy of the detection data is ensured. BRIEF DESCRIPTION OF DRAWINGS

[0019] Figure 1 It is a schematic view of the device of the utility model;

[0020] Figure 2 It is a schematic view of the fixed seat structure of the utility model;

[0021] Figure 3 It is a schematic view of the cleaning assembly structure of the utility model;

[0022] Figure 4 It is a schematic view of the adjusting assembly structure of the utility model;

[0023] Figure 5 It is a front view schematic view of the utility model.

[0024] In the drawing: 1, fixed seat; 2, placing plate; 3, reinforcing plate; 4, cleaning assembly; 401, fixed plate; 402, sliding rod; 403, sliding plate; 404, cleaning cotton; 405, control handle; 5, supporting plate; 6, adjusting assembly; 601, connecting frame; 602, motor box; 603, servo motor; 604, transmission rod; 605, threaded rod; 606, bearing; 607, sliding block; 608, circuit board defect detector body; 7, antiskid pad. DETAILED DESCRIPTION

[0025] The technical solutions in the embodiments of the utility model will be clearly and completely described below with reference to the drawings in the embodiments of the utility model. Obviously, the described embodiments are only part of the embodiments of the utility model, rather than all the embodiments. Based on the embodiments in the utility model, all other embodiments obtained by those skilled in the art without creative labor fall within the scope of protection of the utility model.

[0026] In order to solve the problem of how to effectively position and adjust the technology, such as Figures 1-5 As shown in the figure, the following preferred technical solutions are provided:

[0027] The printed circuit board defect automatic detection equipment comprises a fixing seat 1, a placement plate 2 fixedly connected to the middle of the top end of the fixing seat 1, reinforcing plates 3 fixedly connected to the two sides of the placement plate 2, a cleaning assembly 4 fixedly connected to the front part of the top end of the reinforcing plate 3, and the cleaning assembly 4 is arranged to enable an operator to easily clean the surface of the printed circuit board by operating the cleaning cotton 404 with the control handle 405 when the personnel operating device is used, so as to effectively remove the pollutants and avoid the interference of the pollutants on the detection result, thereby ensuring the accuracy of the detection data. The top end of the rear part of the reinforcing plate 3 is fixedly connected to a supporting plate 5, the top end of the supporting plate 5 is fixedly connected to an adjusting assembly 6, and the adjusting assembly 6 is arranged to enable the position of the circuit board defect detector body 608 to be quickly and accurately adjusted by starting the servo motor 603 and controlling the rotating speed and direction of the servo motor 603 when the personnel operating device is used, without the need for manual repeated adjustment, thereby greatly improving the detection efficiency and accuracy and enabling the detection of printed circuit boards of various sizes and specifications to be adapted. The adjusting assembly 6 comprises a connecting frame 601 fixedly connected to the top end of the supporting plate 5, a motor box 602 fixedly connected to one side of the connecting frame 601, and a servo motor 603 fixedly connected to the inside of the motor box 602.

[0028] Specifically, when the personnel operating device is used, the printed circuit board to be detected is first placed on the placement plate 2, so that the rear part of the circuit board is in contact with the non-slip pad 7 to ensure stable placement, then the sliding plate 403 in the cleaning assembly 4 is pushed by the control handle 405, and the surface of the circuit board is cleaned by the cleaning cotton 404 to remove dust, stains and other pollutants that may affect the detection result. After cleaning, the position of the circuit board defect detector body 608 is adjusted by starting the servo motor 603 according to the size of the printed circuit board and the detection requirement, and the detection is prepared.

[0029] Further, as shown in the figure, the following preferred technical solutions are provided: Figure 4

[0030] ​The output end of the servo motor 603 is fixedly connected with a transmission rod 604, one end of the transmission rod 604 is fixedly connected with a threaded rod 605, the purpose of such design is to stably transmit the rotating power output by the servo motor 603 to the threaded rod 605, so that the threaded rod 605 can rotate accurately according to the operation instruction of the servo motor 603, and provide power source for the linear motion of the sliding block 607, ensure the stability and accuracy of power transmission, and meet the power demand of different detection position adjustment.

[0031] Further, as shown in Figure 4 The following preferred technical solutions are provided:

[0032] One end of the threaded rod 605 is fixedly connected with a bearing 606, one end of the bearing 606 is fixedly connected to the inner wall of the connecting frame 601, the purpose of such design is to provide a stable support point for the threaded rod 605, reduce the shaking and deviation of the threaded rod 605 during high-speed rotation, ensure the stability of the rotation axis of the threaded rod 605, and further ensure the linear motion accuracy of the sliding block 607 on the threaded rod 605, and improve the accuracy of position adjustment of the circuit board defect detector body 608.

[0033] Further, as shown in Figure 4 The following preferred technical solutions are provided:

[0034] The surface of the threaded rod 605 is threadedly connected with a sliding block 607, the sliding block 607 is slidingly connected to the inner wall of the connecting frame 601, and the bottom end of the sliding block 607 is fixedly connected with a circuit board defect detector body 608, the purpose of such design is to utilize the characteristics of threaded transmission to convert the rotating motion of the threaded rod 605 into the linear motion of the sliding block 607. By controlling the forward and reverse rotation and speed of the servo motor 603, the distance and speed of the sliding block 607 moving up and down in the connecting frame 601 can be accurately controlled, thereby driving the circuit board defect detector body 608 to accurately position to different detection positions of the printed circuit board, and meeting the detection needs of printed circuit boards of different thickness and size.

[0035] Further, as shown in Figure 3 The following preferred technical solutions are provided:

[0036] The cleaning assembly 4 includes a fixed plate 401 fixedly connected to the top front end of the reinforcing plate 3, and a sliding rod 402 fixedly connected to the surface of the fixed plate 401, the purpose of such design is to provide a reliable sliding track for the sliding plate 403, so that the sliding plate 403 can keep stable during movement and will not deviate or shake, and ensure that the cleaning cotton 404 contacts the surface of the printed circuit board uniformly, thereby ensuring the consistency and stability of the cleaning effect.

[0037] Further, as shown in Figure 3 The following preferred technical solutions are provided:

[0038] The surface of the slide rod 402 is slidingly connected with a sliding plate 403, the bottom end of the sliding plate 403 is fixedly connected with a cleaning cotton 404, and the top end of the sliding plate 403 is fixedly connected with a control handle 405. The purpose of this design is that the operator can easily push the sliding plate 403 to slide back and forth on the slide rod 402 by holding the control handle 405, so that the cleaning cotton 404 closely contacts the surface of the printed circuit board and wipes, effectively removing the surface contaminants, and the operation is simple and convenient, improving the cleaning efficiency, and ensuring that the detection result is not interfered by the contaminants.

[0039] Further, as shown in Figure 2 The following preferred technical solutions are provided:

[0040] A square slot is formed in the front end of the top end of the placement plate 2, and a non-slip pad 7 is fixedly connected to the rear end of the top end of the placement plate 2. The purpose of this design is to effectively prevent the printed circuit board from sliding or shaking during the detection process due to equipment vibration, external impact or improper operation, etc., to provide a stable and reliable placement basis for the detection work, and to ensure the smooth progress of the detection process.

[0041] Working principle: when using the printed circuit board defect automatic detection equipment, first place the printed circuit board on the placement plate 2, fix its position through the non-slip pad 7, then the operator pushes the sliding plate 403 to slide on the slide rod 402 by the control handle 405, drives the cleaning cotton 404 to clean the surface of the circuit board, after cleaning, according to the actual situation of the circuit board, start the servo motor 603, the servo motor 603 drives the transmission rod 604 to rotate, the transmission rod 604 drives the threaded rod 605 to rotate, since the sliding block 607 is threadedly connected with the threaded rod 605 and slides in the connecting frame 601, the rotation of the threaded rod 605 makes the sliding block 607 move linearly along the axial direction of the threaded rod 605, thereby driving the circuit board defect detector body 608 to move up and down, adjusting to the appropriate detection position, finally, starting the circuit board defect detector body 608, detecting the defects of the printed circuit board, the whole process realizes efficient and accurate detection of the printed circuit board.

[0042] It should be noted that in this text, relational terms such as first and second are used only to distinguish one entity or operation from another, and do not necessarily require or imply that there is any such actual relationship or order between these entities or operations. Moreover, the terms "include", "contain" or any other variants thereof are intended to cover non-exclusive inclusion, so that the process, method, article or equipment including a series of elements not only includes those elements, but also includes other elements not explicitly listed or inherent to such process, method, article or equipment.

[0043] Although the embodiments of the present application have been shown and described, it is to be understood that various changes, modifications, substitutions and alterations can be made to these embodiments without departing from the principles and spirit of the present application, the scope of which is defined by the appended claims and their equivalents.

Claims

1. An apparatus for automatically detecting defects of a printed wiring board, comprising a fixing base (1), characterized in that: The middle part of the top end of the fixing seat (1) is fixedly connected with a placing plate (2), both sides of the placing plate (2) are fixedly connected with reinforcing plates (3), the front end of the top end of the reinforcing plate (3) is fixedly connected with a cleaning assembly (4), the rear end of the top end of the reinforcing plate (3) is fixedly connected with a supporting plate (5), the top end of the supporting plate (5) is fixedly connected with an adjusting assembly (6), the adjusting assembly (6) comprises a connecting frame (601) fixedly connected to the top end of the supporting plate (5), one side of the connecting frame (601) is fixedly connected with a motor box (602), the inside of the motor box (602) is fixedly connected with a servo motor (603).

2. The printed wiring board defect automatic inspection apparatus according to claim 1, characterized by: The output end of the servo motor (603) is fixedly connected with a transmission rod (604), one end of the transmission rod (604) is fixedly connected with a threaded rod (605).

3. The printed wiring board defect automatic inspection apparatus according to claim 2, characterized by: One end of the threaded rod (605) is fixedly connected with a bearing (606), one end of the bearing (606) is fixedly connected to the inner wall of the connecting frame (601).

4. The printed wiring board defect automatic inspection apparatus according to claim 2, characterized by: The surface of the threaded rod (605) is threadedly connected with a sliding block (607), the sliding block (607) is slidingly connected to the inner wall of the connecting frame (601), and the bottom end of the sliding block (607) is fixedly connected with a circuit board defect detector body (608).

5. The printed wiring board defect automatic inspection apparatus according to claim 1, characterized by: The cleaning assembly (4) comprises a fixed plate (401) fixedly connected to the front end of the top end of the reinforcing plate (3), and the surface of the fixed plate (401) is fixedly connected with a sliding rod (402).

6. The printed wiring board defect automatic inspection apparatus according to claim 5, characterized by: The surface of the sliding rod (402) is slidingly connected with a sliding plate (403), the bottom end of the sliding plate (403) is fixedly connected with cleaning cotton (404), and the top end of the sliding plate (403) is fixedly connected with a control handle (405).

7. The printed wiring board defect automatic inspection apparatus according to claim 1, characterized by: The front end of the top end of the placing plate (2) is provided with a square slot, and the rear end of the top end of the placing plate (2) is fixedly connected with a non-slip pad (7).

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