Positioning device for visual inspection of PCB (Printed Circuit Board)

Abstract

The utility model relates to the technical field of PCBs (printed circuit boards), in particular to a positioning device for visual inspection of PCBs, which comprises a workbench, a positioning substrate is fixedly connected to the right part of the upper end of the workbench, a fixing frame is fixedly connected to the right part of the upper end of the workbench, the fixing frame is positioned on the right side of the positioning substrate, an air cylinder is fixedly connected to the upper end of the fixing frame, and the air cylinder is positioned on the right side of the positioning substrate. The output end of the air cylinder penetrates through the middle of the upper end of the fixing frame and is fixedly connected with a pressing bottom plate, four elastic rubber blocks are fixedly connected to the lower end of the pressing bottom plate, and flexible sponge blocks are fixedly connected to the front portion and the rear portion of the lower end of the pressing bottom plate. According to the positioning device for visual inspection of the PCB, the pressing bottom plate is arranged, and the four elastic rubber blocks and the two flexible sponge blocks are fixed below the pressing bottom plate, so that the PCB can be well protected when being subjected to pressing inspection, and indentations cannot appear on the surface of the PCB when the PCB is pressed.

Description

Technical Field

[0001] The utility model relates to the technical field of PCB circuit boards, and in particular to a positioning device for visual inspection of PCB boards. Background Art

[0002] PCB refers to printed circuit board. As the carrier of various components and the hub of circuit signal transmission, PCB has become a vital component in electronic information products. Its quality and reliability determine the quality of the whole equipment. Therefore, after the production of PCB, personnel need to conduct detailed inspection of the board. However, in the existing PCB inspection and positioning process, the overall process is relatively cumbersome, and it is easy to cause indentation and scratches on the surface of the board during the inspection process, thereby reducing the production efficiency of the PCB. Therefore, further improvement is needed. Utility Model Content

[0003] The main purpose of the utility model is to provide a positioning device for visual inspection of a PCB board, which can effectively solve the problems in the background technology.

[0004] In order to achieve the above purpose, the technical solution adopted by the utility model is:

[0005] A positioning device for visual inspection of a PCB board comprises a workbench, wherein the upper right portion of the workbench is fixedly connected to a positioning substrate, the upper right portion of the workbench is fixedly connected to a fixing frame, and the fixing frame is located on the right side of the positioning substrate, the upper end of the fixing frame is fixedly connected to a cylinder, the output end of the cylinder passes through the middle of the upper end of the fixing frame and is fixedly connected to a pressing base plate, the lower end of the pressing base plate is fixedly connected to four elastic rubber blocks, the lower front end and the lower rear end of the pressing base plate are fixedly connected to flexible sponge blocks, the four elastic rubber blocks are located between two flexible sponge blocks, and the upper rear end of the workbench is fixedly connected to A carrying frame is connected, a limiting slide groove is opened at the front end of the carrying frame, an information feedback module is fixedly connected to the upper left end of the carrying frame, a driver is fixedly connected to the right end of the carrying frame, the output end of the driver passes through the middle of the right end of the carrying frame and is fixedly connected to a threaded rod, a fixing ring block is movably connected to the right part of the outer surface of the threaded rod, a base mounting plate is fixedly connected to the lower part of the outer surface of the fixing ring block, a limiting slide block is fixedly connected to the middle part of the front end of the base mounting plate, a positioning detection head and two cameras are fixedly connected to the lower end of the base mounting plate, and the positioning detection head is located between the two cameras.

[0006] Preferably, the length of the pressing base plate is the same as the width of the workbench.

[0007] Preferably, the four elastic rubber blocks are all located on the upper right side of the positioning substrate.

[0008] Preferably, the left end of the threaded rod is movably connected to the supporting frame via a bearing, and the fixed ring block does not contact the inner upper wall of the supporting frame.

[0009] Preferably, the limiting sliding block slides in the limiting sliding groove, and the base mounting plate does not contact the inner rear wall of the workbench.

[0010] Compared with the prior art, the utility model has the following beneficial effects:

[0011] 1. By setting a pressing bottom plate, four elastic rubber blocks and two flexible sponge blocks are fixed at the lower end of the pressing bottom plate, and the PCB board is placed on the positioning substrate and located at the lower side of the pressing bottom plate, so that the pressing bottom plate is used in conjunction with the cylinder, and the pressing bottom plate synchronously drives the four elastic rubber blocks and the two flexible sponge blocks to elastically press the PCB board placed below, so that no scratches will appear on the surface of the PCB board when it is pressed and fixed;

[0012] 2. By setting a driver, a threaded rod, a fixed ring block, and a base mounting plate, two cameras and a positioning detection head are fixedly installed on the lower end of the base mounting plate, and the limit slider is located in the limit slide groove for limited sliding. With these coordinated use, when the base mounting plate moves left and right, it can synchronously drive the positioning detection head and the two cameras to quickly shoot and locate the PCB board placed on the lower side, thereby improving the detection efficiency of the PCB board. BRIEF DESCRIPTION OF THE DRAWINGS

[0013] Figure 1 This is a schematic diagram of the overall structure of a positioning device for visual inspection of a PCB board according to the utility model;

[0014] Figure 2 This is a schematic diagram of the connection between the base mounting plate, the positioning detection head and the camera of a positioning device for visual inspection of a PCB board according to the utility model;

[0015] Figure 3 This is a schematic diagram of the connection between the cylinder and the pressing base plate of a positioning device for visual inspection of a PCB board of the utility model;

[0016] Figure 4 The utility model is a schematic diagram of the lower part of the pressing base plate of the positioning device for visual inspection of PCB boards.

[0017] In the figure: 1. workbench; 2. positioning base plate; 3. fixing frame; 4. cylinder; 5. bearing frame; 6. limit slide; 7. information feedback module; 8. driver; 9. threaded rod; 10. fixing ring block; 11. base mounting plate; 12. limit slide block; 13. positioning detection head; 14. camera; 15. pressing base plate; 16. elastic rubber block; 17. flexible sponge block. DETAILED DESCRIPTION

[0018] In order to make the technical means, creative features, objectives and effects achieved by the present invention easy to understand, the present invention is further described below in conjunction with specific implementation methods.

[0019] In the description of the present invention, it should be noted that the terms "upper", "lower", "inner", "outer", "front end", "rear end", "two ends", "one end", "the other end" and the like indicate positions or positional relationships based on the positions or positional relationships shown in the drawings, and are only for the convenience of describing the present invention and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, be constructed and operate in a specific orientation, and therefore cannot be understood as a limitation on the present invention. In addition, the terms "first" and "second" are used for descriptive purposes only and cannot be understood as indicating or implying relative importance.

[0020] In the description of the present invention, it should be noted that, unless otherwise clearly specified and limited, the terms "installed", "provided with", "connected", etc. should be understood in a broad sense. For example, "connected" can be a fixed connection, a detachable connection, or an integral connection; it can be a mechanical connection or an electrical connection; it can be a direct connection, or it can be an indirect connection through an intermediate medium, or it can be the internal communication of two components. For ordinary technicians in this field, the specific meanings of the above terms in the present invention can be understood according to specific circumstances.

[0021] See also Figure 1-4 , the utility model provides a technical solution:

[0022] A positioning device for visual inspection of a PCB board comprises a workbench 1, a positioning substrate 2 is fixedly connected to the right upper end of the workbench 1, a fixing frame 3 is fixedly connected to the right upper end of the workbench 1, and the fixing frame 3 is located on the right side of the positioning substrate 2, a cylinder 4 is fixedly connected to the upper end of the fixing frame 3, an output end of the cylinder 4 passes through the middle of the upper end of the fixing frame 3 and is fixedly connected to a pressing base plate 15, four elastic rubber blocks 16 are fixedly connected to the lower end of the pressing base plate 15, a flexible sponge block 17 is fixedly connected to the front and rear lower ends of the pressing base plate 15, and the four elastic rubber blocks 16 are located between the two flexible sponge blocks 17, and a cylinder 4 is fixedly connected to the upper rear end of the workbench 1 A load-bearing frame 5, a limiting slide groove 6 is provided at the front end of the load-bearing frame 5, an information feedback module 7 is fixedly connected to the upper left end of the load-bearing frame 5, a driver 8 is fixedly connected to the right end of the load-bearing frame 5, an output end of the driver 8 passes through the middle of the right end of the load-bearing frame 5 and is fixedly connected to a threaded rod 9, a fixing ring block 10 is movably connected to the right part of the outer surface of the threaded rod 9, a base mounting plate 11 is fixedly connected to the lower part of the outer surface of the fixing ring block 10, a limiting slide block 12 is fixedly connected to the middle of the front end of the base mounting plate 11, a positioning detection head 13 and two cameras 14 are fixedly connected to the lower end of the base mounting plate 11, and the positioning detection head 13 is located between the two cameras 14.

[0023] In this embodiment, the length of the pressing base plate 15 is the same as the width of the workbench 1, and the four elastic rubber blocks 16 are all located on the upper right side of the positioning substrate 2. By positioning the positioning substrate 2 on the right side of the fixing frame 3, the PCB board is placed on the positioning substrate 2, so that the right end surface of the PCB board is located on the lower side of the pressing base plate 15. When the pressing base plate 15 is pressed downward, the pressing base plate 15 can drive the four elastic rubber blocks 16 and the two flexible sponge blocks 17 to elastically press the PCB board, so that the PCB board can be tightly fixed. The left end of the threaded rod 9 is movably connected to the supporting frame 5 through a bearing, and the fixing ring block 10 is not in contact with the inner upper wall of the supporting frame 5. The limit slider 12 slides in the limit slot 6, the base mounting plate 11 does not contact the inner rear wall of the workbench 1, the base mounting plate 11 is threadedly connected to the threaded rod 9 through the fixing ring block 10, and then two cameras 14 and a positioning detection head 13 are fixed to the lower end of the base mounting plate 11 respectively, so that with the cooperation of the driver 8, the threaded rod 9, the fixing ring block 10 and the base mounting plate 11, the base mounting plate 11 can move left and right when the limit slider 12 is limited in the limit slot 6, so the positioning detection head 13 can perform a comprehensive left and right point detection on the PCB board placed on the lower side, thereby improving the detection efficiency.

[0024] It should be noted that the utility model is a positioning device for visual inspection of PCB boards. During use, the PCB board is placed on the positioning substrate 2 and is located at the lower side of the pressing base plate 15. By starting the cylinder 4, the output end of the cylinder 4 can drive the pressing base plate 15 to press downward, so that the four elastic rubber blocks 16 and the two flexible sponge blocks 17 can press the PCB board. Since the four elastic rubber blocks 16 and the two flexible sponge blocks 17 are flexible, they can protect the PCB board when pressed, so that the PCB board will not be scratched during fixed inspection. By providing a driver 8 and a threaded rod 9. A fixing ring block 10 and a base mounting plate 11. Two cameras 14 and a positioning detection head 13 are fixed at the lower end of the base mounting plate 11. The limit slider 12 is positioned in the limit slide groove 6 and slides within a limited position. With these cooperations, the base mounting plate 11 can drive the positioning detection head 13 and the two cameras 14 to perform a comprehensive left-right inspection on the quality of the PCB board placed on the lower side. The inspection results are photographed by the two cameras 14 and transmitted to the positioning detection head 13 and then fed back to the information feedback module 7, so that personnel can quickly sort out PCB boards of poor quality, thereby greatly improving the production quality and efficiency of PCB boards.

[0025] The above shows and describes the basic principle and main features of the utility model and the advantages of the utility model. Those skilled in the art should understand that the utility model is not limited by the above embodiments. The above embodiments and descriptions are only for explaining the principle of the utility model. Without departing from the spirit and scope of the utility model, the utility model may have various changes and improvements, which fall within the scope of the utility model to be protected. The scope of protection claimed by the utility model is defined by the attached claims and their equivalents.

Claims

1. A positioning device for visual inspection of a PCB board, comprising a workbench (1), characterized in that: The upper right part of the workbench (1) is fixedly connected to a positioning substrate (2), the upper right part of the workbench (1) is fixedly connected to a fixing frame (3), and the fixing frame (3) is located on the right side of the positioning substrate (2), the upper end of the fixing frame (3) is fixedly connected to a cylinder (4), the output end of the cylinder (4) passes through the middle of the upper end of the fixing frame (3) and is fixedly connected to a pressing base plate (15), the lower end of the pressing base plate (15) is fixedly connected to four elastic rubber blocks (16), the lower front and lower rear of the pressing base plate (15) are fixedly connected to flexible sponge blocks (17), and the four elastic rubber blocks (16) are located between two flexible sponge blocks (17), the upper rear of the workbench (1) is fixedly connected to a supporting frame (5), and the supporting frame ( A limiting slide groove (6) is provided at the front end of the supporting frame (5), an information feedback module (7) is fixedly connected to the upper left end of the supporting frame (5), a driver (8) is fixedly connected to the right end of the supporting frame (5), an output end of the driver (8) passes through the middle of the right end of the supporting frame (5) and is fixedly connected to a threaded rod (9), a fixing ring block (10) is movably connected to the right part of the outer surface of the threaded rod (9), a base mounting plate (11) is fixedly connected to the lower part of the outer surface of the fixing ring block (10), a limiting slide block (12) is fixedly connected to the middle of the front end of the base mounting plate (11), a positioning probe (13) and two cameras (14) are fixedly connected to the lower end of the base mounting plate (11), and the positioning probe (13) is located between the two cameras (14).

2. A positioning device for visual inspection of a PCB board according to claim 1, characterized in that: The length of the pressing base plate (15) is the same as the width of the workbench (1).

3. A positioning device for visual inspection of a PCB board according to claim 1, characterized in that: The four elastic rubber blocks (16) are all located on the upper right side of the positioning substrate (2).

4. A positioning device for visual inspection of a PCB board according to claim 1, characterized in that: The left end of the threaded rod (9) is movably connected to the supporting frame (5) via a bearing, and the fixed ring block (10) does not contact the inner upper wall of the supporting frame (5).

5. The positioning device for visual inspection of a PCB board according to claim 1, characterized in that: The limiting slide block (12) slides in the limiting slide groove (6), and the base mounting plate (11) does not contact the inner rear wall of the workbench (1).

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