PCB automatic test mechanism

Abstract

The utility model provides a PCB board automatic testing mechanism, relates to the PCB board testing equipment field, the PCB board automatic testing mechanism comprises a detection device used for testing a PCB board, the detection device is internally provided with a turnover part used for turning over the PCB board, and the turnover part is accurately controlled by a double-shaft cylinder to turn over the PCB board. The output ends at the two ends can drive the two supporting plates to move towards the two sides of the PCB, the PCB is clamped and limited through the clamping pieces arranged on one sides of the two supporting plates, when one sides of the clamping plates make contact with the PCB, the clamping pieces can move towards the interiors of the grooves formed in one sides of the supporting plates and extrude the elastic pieces, and under the elastic effect of the elastic pieces, the clamping pieces can move towards the interiors of the grooves formed in one sides of the supporting plates and extrude the elastic pieces. The shape and the size of the PCB can be adjusted in a self-adaptive mode, so that clamping force is evenly distributed, the abrasion risk caused by too large local pressure can be reduced through the structure, and the detection efficiency of the PCB is improved to a certain degree.

Description

Technical Field

[0001] The utility model relates to the field of PCB board testing equipment, in particular to an automatic testing mechanism for a PCB board. Background Art

[0002] PCB board is a plate-like structure made of specific materials. Its surface and interior form predetermined conductive paths through printing, etching and other processes. It is used to fix and connect various electronic components to achieve electrical interconnection and signal transmission between them. The PCB board automatic testing mechanism is a device specially used to automatically detect the quality and performance of PCB boards. It can accurately detect various defects and problems on PCB boards, ensure that the produced PCB boards meet quality standards, and improve production efficiency and product quality. It includes electrical testing, appearance inspection, X-ray inspection and other links.

[0003] When performing appearance inspection on PCB boards, high-precision cameras are usually used to inspect the PCB boards. After the top of the PCB board is inspected by the high-precision camera, a flipping mechanism is generally used to turn the PCB board over, and after turning over, another high-precision camera is used to inspect the bottom of the PCB board. Most of the existing flipping mechanisms are composed of a threaded rod, two clamping plates and a motor. The distance between the two clamping plates is adjusted by rotating the threaded rod, so that the two sides of the PCB board are clamped and limited, and the two clamping plates are driven by the motor to flip over, so as to realize the flipping of the PCB board. However, due to the accuracy limitation of the threaded rod adjustment, the clamping force may be unevenly distributed, so that the area with excessive clamping force causes wear on the surface of the PCB board. If the clamping force is too small, the PCB board may slide or fall off during the flipping process, affecting the inspection efficiency of the PCB board.

[0004] Therefore, it is necessary to provide a new PCB board automatic testing mechanism to solve the above technical problems. Utility Model Content

[0005] In order to solve the above technical problems, the utility model provides a PCB board automatic testing mechanism.

[0006] The PCB board automatic testing mechanism provided by the utility model comprises a detection device for testing the PCB board, wherein a turning component for turning over the PCB board is arranged inside the detection device;

[0007] The flipping component includes a driving assembly, a double-axis cylinder, a fixed block and two support plates. The driving assembly and the bottom of the fixed block are fixed inside the detection equipment. The output shaft of the driving assembly is movably connected to one side of the fixed block. One side of the double-axis cylinder is provided with multiple connecting blocks, and the multiple connecting blocks are fixedly sleeved on the surface of the output shaft of the driving assembly. The two support plates are respectively fixedly connected to the two ends of the double-axis cylinder. One side of the two support plates is provided with a clamping piece, and one side of the two support plates is provided with a groove for the clamping piece to move. One side of the clamping piece is connected to the inner side of the groove through multiple elastic pieces, and the other side of the clamping piece is provided with multiple protruding blocks.

[0008] Preferably, the elastic member is a spring, one end of the spring is fixedly connected to one side of the clamping member located inside the groove, and the other end of the spring is fixedly connected to the inner side of the groove.

[0009] Preferably, the driving component is a motor, the bottom of the motor is fixed inside the detection device, the output end of the motor is movably connected to one side of the fixed block, and a plurality of connecting blocks are fixedly sleeved on the surface of the motor output shaft.

[0010] Preferably, the clamping member includes a movable plate and a clamping plate, one side of the movable plate is located inside the groove, and the side of the movable plate located inside the groove is fixedly connected to one end of the spring, the other side of the movable plate is fixedly connected to one side of the clamping plate, and a plurality of protrusions are provided on the side of the clamping plate away from the movable plate.

[0011] Preferably, the outer side of the movable plate fits with the inner side of the groove.

[0012] Preferably, the detection device is internally provided with a plurality of high-precision cameras for observing the PCB board.

[0013] Compared with the related art, the PCB board automatic testing mechanism provided by the utility model has the following beneficial effects:

[0014] 1. Through the precise control of the double-axis cylinder, the output ends at both ends can drive the two support plates to move to the two sides of the PCB board, and the PCB board is clamped and limited by the clamping members arranged on one side of the two support plates. When one side of the clamping plate contacts the PCB board, the clamping member moves into the groove opened on one side of the support plate and squeezes the elastic member. Under the elastic action of the elastic member, the shape and size of the PCB board can be adaptively adjusted, so that the clamping force is evenly distributed. The above structure can reduce the risk of wear caused by excessive local pressure, and improve the detection efficiency of the PCB board to a certain extent.

[0015] 2. Under the elastic action of the elastic member, a certain extrusion force can also be applied to one side of the PCB board, so that the PCB board is more stable during the flipping process and prevents it from sliding or falling off.

[0016] 3. By setting a plurality of raised blocks on one side of the clamping member, the contact area with one side of the PCB board can be increased, thereby increasing the friction between the clamping member and the PCB board and increasing the stability of the PCB board during movement. BRIEF DESCRIPTION OF THE DRAWINGS

[0017] Figure 1 A schematic cross-sectional structure diagram of the PCB board automatic testing mechanism provided by the utility model;

[0018] Figure 2 for Figure 1 The overall structure of the flip component shown is shown Figure 1 ;

[0019] Figure 3 for Figure 1 The overall structure of the flip component shown is shown Figure 2 ;

[0020] Figure 4 for Figure 3 The structural schematic diagram of the support plate, movable plate and clamping plate shown;

[0021] Figure 5 The utility model provides an overall structural diagram of the PCB board automatic testing mechanism.

[0022] Numbers in the figure: 1. Detection equipment; 2. Flipping component; 3. Dual-axis cylinder; 4. Fixed block; 5. Connecting block; 6. Support plate; 7. Groove; 8. Raised block; 9. Spring; 10. Motor; 11. Movable plate; 12. Clamping plate; 13. High-precision camera. DETAILED DESCRIPTION

[0023] The utility model is further described below in conjunction with the accompanying drawings and implementation modes.

[0024] Please refer to Figure 1 , Figure 2 , Figure 3 , Figure 4 as well as Figure 5 ,in, Figure 1 A schematic cross-sectional structure diagram of the PCB board automatic testing mechanism provided by the utility model; Figure 2 for Figure 1 The overall structure of the flip component shown is shown Figure 1 ; Figure 3 for Figure 1 The overall structure of the flip component shown is shown Figure 2 ; Figure 4 for Figure 3 The structural schematic diagram of the support plate, movable plate and clamping plate shown; Figure 5 The utility model provides an overall structural diagram of the PCB board automatic testing mechanism.

[0025] In the specific implementation process, Figure 1-Figure 5 As shown, a PCB board automatic testing mechanism comprises a testing device 1 for testing a PCB board, a flipping component 2 for flipping the PCB board is arranged inside the testing device 1, the flipping component 2 comprises a driving component, a double-axis cylinder 3, a fixing block 4 and two supporting plates 6, the driving component and the bottom of the fixing block 4 are fixed inside the testing device 1, the output shaft of the driving component is movably connected with one side of the fixing block 4, a plurality of connecting blocks 5 are arranged on one side of the double-axis cylinder 3, and the plurality of connecting blocks 5 are fixedly sleeved on the surface of the output shaft of the driving component, the two supporting plates 6 are respectively fixedly connected with the two ends of the double-axis cylinder 3, a clamping piece is arranged on one side of the two supporting plates 6, and a groove 7 for the clamping piece to move is arranged on one side of the two supporting plates 6, one side of the clamping piece is connected with the inner side of the groove 7 through a plurality of elastic pieces, and a plurality of protruding blocks 8 are arranged on the other side of the clamping piece, and the contact area with one side of the PCB board can be increased by the plurality of protruding blocks 8 arranged on one side of the clamping plate 12, thereby increasing the friction between the clamping plate and the PCB board, and increasing the stability of the PCB board during movement;

[0026] The elastic member is a spring 9, one end of the spring 9 is fixedly connected to one side of the clamping member located inside the groove 7, and the other end of the spring 9 is fixedly connected to the inner side of the groove 7. The driving component is a motor 10, the bottom of the motor 10 is fixed inside the detection device 1, the output end of the motor 10 is movably connected to one side of the fixed block 4, and a plurality of connecting blocks 5 are fixedly sleeved on the surface of the output shaft of the motor 10, the clamping member includes a movable plate 11 and a clamping plate 12, one side of the movable plate 11 is located inside the groove 7, and the side of the movable plate 11 located inside the groove 7 is fixedly connected to one end of the spring 9. The movable plate 11 is fixedly connected, and the other side of the movable plate 11 is fixedly connected to one side of the clamping plate 12. A plurality of protrusions 8 are provided on the side of the clamping plate 12 away from the movable plate 11. The outer side of the movable plate 11 fits with the inner side of the groove 7. A plurality of high-precision cameras 13 for observing the PCB board are provided inside the detection device 1. When the clamping plate 12 clamps and limits the PCB board, a certain extrusion force can be applied to the PCB board under the elastic action of the spring 9, so that the PCB board is more stable during the flipping process to prevent it from sliding or falling off.

[0027] The working principle provided by the utility model is as follows: a PCB board to be inspected is placed inside the inspection device 1, and the PCB board is transported to the bottom of the high-precision camera 13 by a conveyor belt arranged inside the inspection device 1, and the top of the PCB board is inspected by the high-precision camera 13. After the inspection of the PCB board is completed, when the PCB board moves between the two clamping plates 12, the output ends at both ends can drive the two support plates 6 to move toward the two sides of the PCB board through the precise control of the double-axis cylinder 3, and the clamping plate 12 is driven to move toward the PCB board through the support plate 6, and one side of the clamping plate 12 is in contact with the surface of the PCB board. Because one side of the movable plate 11 is located in the groove 7 and is connected to one end of the spring 9, when one side of the clamping plate 12 is in contact with the surface of the PCB board, the clamping plate 12 and the movable plate 11 are moved into the groove 7 and the spring 9 is squeezed. Under the elastic action of the spring 9, the shape and size of the PCB board can be adaptively adjusted, so that the clamping force is evenly distributed, reducing the risk of wear caused by excessive local pressure.

[0028] After the PCB board is clamped and limited, the motor 10 is started, and the output shaft of the motor 10 rotates to drive the multiple connecting blocks 5 and the double-axis cylinder 3 to flip, and the double-axis cylinder 3 drives the clamped PCB board to flip, so that the high-precision camera 13 set inside the detection device 1 can detect the bottom of the PCB board;

[0029] At the same time, when the clamping plate 12 clamps and limits the PCB board, under the elastic action of the spring 9, a certain extrusion force can be applied to the PCB board, so that the PCB board is more stable during the flipping process and prevents it from sliding or falling off. In addition, the multiple protrusions 8 set on one side of the clamping plate 12 can increase the contact area with one side of the PCB board, thereby increasing the friction between the PCB board and the PCB board, and increasing the stability of the PCB board during movement. Because the outer side of the movable plate 11 fits with the inner side of the groove 7, the movable plate 11 can move more stably inside the groove 7.

[0030] The circuits and controls involved in the present invention are all prior art and will not be described in detail here.

[0031] The above description is only an embodiment of the present invention, and does not limit the patent scope of the present invention. Any equivalent structure or equivalent process transformation made by using the contents of the specification and drawings of the present invention, or directly or indirectly applied in other related technical fields, are also included in the patent protection scope of the present invention.

Claims

1. A PCB board automatic testing mechanism, comprising a detection device (1) for testing a PCB board, characterized in that: The detection device (1) is provided with a turning component (2) for turning over the PCB board; The flip component (2) comprises a driving component, a double-axis cylinder (3), a fixed block (4) and two support plates (6); the driving component and the bottom of the fixed block (4) are fixed inside the detection device (1); the output shaft of the driving component is movably connected to one side of the fixed block (4); one side of the double-axis cylinder (3) is provided with a plurality of connecting blocks (5), and the plurality of connecting blocks (5) are fixedly sleeved on the surface of the output shaft of the driving component; the two support plates (6) are respectively fixedly connected to the two ends of the double-axis cylinder (3); one side of the two support plates (6) is provided with a clamping piece, and one side of the two support plates (6) is provided with a groove (7) for the clamping piece to move; one side of the clamping piece is connected to the inner side of the groove (7) through a plurality of elastic pieces; the other side of the clamping piece is provided with a plurality of protruding blocks (8).

2. The PCB board automatic testing mechanism according to claim 1, characterized in that: The elastic member is a spring (9), one end of the spring (9) is fixedly connected to one side of the clamping member located inside the groove (7), and the other end of the spring (9) is fixedly connected to the inner side of the groove (7).

3. The PCB board automatic testing mechanism according to claim 2, characterized in that: The driving component is a motor (10), the bottom of the motor (10) is fixed inside the detection device (1), the output end of the motor (10) is movably connected to one side of the fixing block (4), and a plurality of connecting blocks (5) are fixedly sleeved on the surface of the output shaft of the motor (10).

4. The PCB board automatic testing mechanism according to claim 3, characterized in that: The clamping member comprises a movable plate (11) and a clamping plate (12); one side of the movable plate (11) is located inside the groove (7); the side of the movable plate (11) located inside the groove (7) is fixedly connected to one end of the spring (9); the other side of the movable plate (11) is fixedly connected to one side of the clamping plate (12); and a plurality of protrusions (8) are provided on the side of the clamping plate (12) away from the movable plate (11).

5. The PCB board automatic testing mechanism according to claim 4, characterized in that: The outer side of the movable plate (11) fits the inner side of the groove (7).

6. The PCB board automatic testing mechanism according to claim 5, characterized in that: The detection device (1) is internally provided with a plurality of high-precision cameras (13) for observing the PCB board.

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