PCB multi-station automatic testing equipment

Abstract

The utility model discloses a kind of PCB multi-station automatic test equipment, including workbench, workbench is equipped with feeding assembly line, discharging assembly line, manipulator, moving mechanism and multiple pressing mechanism, each pressing mechanism corresponds a test station, with multiple DDR test stations and multiple DSP burning and semi-finished product test station, manipulator is used to move the position of PCB board, moving mechanism is used to move the qualified PCB board to equipment exterior, discharging assembly line is used to transmit the unqualified PCB board to equipment exterior. Feeding, DDR test, DSP burning and semi-finished product test, discharging process are integrated on a device, the transformation of PCB board position is realized by one manipulator, compact structure.

Description

Technical Field

[0001] This utility model relates to the field of PCB board testing equipment, specifically to a multi-station automatic testing equipment for PCB boards. Background Technology

[0002] PCB boards (integrated circuit boards) need to undergo DDR testing, DSP programming, and semi-finished product testing. Relying on manual transfer of PCB boards between different workstations is inefficient. Patent CN 109298319 A discloses a mobile multi-workstation testing and programming line, which sets up a conveyor belt between each pair of testing stations, resulting in a very long production line and a large space occupation. Utility Model Content

[0003] To address the shortcomings of existing technologies, this utility model provides a multi-station automatic testing device for PCB boards, which has a compact structure and occupies little space.

[0004] To achieve the above objectives, this utility model is implemented through the following technical solution: This utility model provides a multi-station automatic testing equipment for PCB boards, including a workbench. The workbench is equipped with an infeed line, an outfeed line, a robot arm, a moving mechanism, and multiple pressing mechanisms. Each pressing mechanism corresponds to a testing station. It has multiple DDR testing stations and multiple DSP programming and semi-finished product testing stations. The robot arm is used to move the position of the PCB board, the moving mechanism is used to transfer qualified PCB boards to the outside of the equipment, and the outfeed line is used to transfer unqualified PCB boards to the outside of the equipment.

[0005] Furthermore, the pressing mechanism includes a top plate, a fixed plate, a guide post, a drive component, a movable plate, an upper fixture, and a lower fixture. The lower fixture is mounted on the fixed plate, the top plate is mounted above the fixed plate via the guide post, the movable plate is located between the top plate and the fixed plate, a guide sleeve is mounted on the movable plate, the guide sleeve is slidably fitted onto the guide post, the drive component is fixedly mounted on the top plate and is used to drive the movable plate to move up and down, and the upper fixture is mounted on the bottom surface of the movable plate to hold the PCB board placed on the lower fixture.

[0006] Furthermore, the lower fixture includes a base, a positioning plate, a spring guide post, and a limiting screw. The positioning plate is movably mounted above the base. The top surface of the positioning plate has a groove for accommodating the PCB board. The positioning plate has a stepped hole. The limiting screw passes through the stepped hole on the positioning plate and locks itself onto the base. A spring guide post is provided between the base and the positioning plate. Furthermore, a PoGoPIN male terminal is installed on the mounting plate, which is connected to the device power supply; The base is equipped with a PoGoPIN female terminal and a power-connecting pin. The power-connecting pin is electrically connected to the PoGoPIN female terminal. The PoGoPIN female terminal is inserted into the PoGoPIN male terminal on the fixing plate. The positioning plate has through holes with connecting grooves. The power-connecting pin is aligned with the through holes on the positioning plate. The driving component presses down the positioning plate through the upper fixture. When the positioning plate moves down, the electrical pin is inserted into the groove through the through hole to achieve electrical connection with the PCB board placed in the groove.

[0007] Furthermore, multiple rotary pressing cylinders are installed on the fixed plate, and the lower fixture is detachably mounted on the fixed plate via the rotary pressing cylinders.

[0008] Furthermore, the moving mechanism includes a bracket, a diagonal brace, a linear module, and a lifting cylinder. One end of the linear module is fixed to the bracket, and the other end extends out of the worktable and is placed on the diagonal brace. The diagonal brace is fixed to the worktable. The lifting cylinder is installed on the linear module, and the linear module drives the lifting cylinder to move horizontally. A mounting plate is installed at the bottom of the lifting cylinder, and a suction cup and a pneumatic finger are installed at the bottom of the mounting plate. The suction cup is used to adsorb the PCB board, and the finger cylinder is used to clamp the wiring terminals on the PCB board. The lifting cylinder drives the mounting plate to move up and down along the Z-axis.

[0009] This utility model has the following beneficial effects: This utility model provides a multi-station automated PCB testing equipment that integrates loading, DDR testing, DSP programming and semi-finished product testing, and unloading processes into a single machine. After testing, the PCBs are automatically unloaded via a production line, reducing manual labor and shortening the cycle time. There is no need for conveyor belts between different testing stations; a robotic arm is used to change the position of the PCBs, resulting in a compact structure. Attached Figure Description

[0010] Figure 1 This is a top view of the PCB board multi-station automatic testing equipment according to an embodiment of this utility model; Figure 2 yes Figure 1 3D view of a multi-station automated testing equipment for PCB boards; Figure 3 yes Figure 2 A magnified view of a portion of the image; Figure 4 It is a 3D diagram of the pressing mechanism; Figure 5 This is a schematic diagram of the fixing plate; Figure 6 This is a schematic diagram of the base; Figure 7 This is an exploded view of the lower jig. Detailed Implementation

[0011] The present invention will be further described below with reference to the accompanying drawings and embodiments.

[0012] In the description of this utility model, it should be understood that the terms "upper", "lower", "front", "rear", "left", "right", "top", "bottom", "inner", "outer", etc., indicate the orientation or positional relationship based on the orientation or positional relationship shown in the accompanying drawings. They are only for the convenience of describing this utility model and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation. Therefore, they should not be construed as limitations on this utility model.

[0013] like Figures 1 to 7 As shown in the figure, this embodiment discloses a multi-station automatic testing equipment for PCB boards, including a workbench 1. The workbench 1 is equipped with an infeed line 2, an outfeed line 3, a robot arm 4, a moving mechanism 5, and multiple pressing mechanisms. Each pressing mechanism corresponds to a testing station, and there are multiple DDR testing stations 6 and multiple DSP programming and semi-finished product testing stations 7. The robot arm 4 is used to move the position of the PCB board, the moving mechanism 5 is used to transfer qualified PCB boards to the outside of the equipment, and the outfeed line 3 is used to transfer unqualified PCB boards to the outside of the equipment.

[0014] The robotic arm 4 is used to move the PCB boards on the feeding line 2 to the testing station, and to move the PCB boards that pass the test to the underside of the moving mechanism 5. Then, the moving mechanism 5 moves the PCB boards to the production line outside the equipment. The PCB boards that fail the test are moved by the robotic arm 4 to the discharge line 3, and the discharge line 3 outputs the unqualified PCB boards.

[0015] Each DDR test station 6 is used to test different parts of the PCB board, and each DSP programming and semi-finished product test station 7 is used to test different parts of the PCB board. The robotic arm 4 moves the PCB board from the previous test station to the next test station.

[0016] The pressing mechanism includes a top plate 8, a fixed plate 9, a guide post 10, a driving component 11, a movable plate 12, an upper fixture 26, and a lower fixture. The lower fixture is mounted on the fixed plate 9. The top plate 8 is mounted above the fixed plate 9 via the guide post 10. The movable plate 12 is located between the top plate 8 and the fixed plate 9. A guide sleeve 15 is mounted on the movable plate 12 and slides on the guide post 10. The driving component 11 is fixedly mounted on the top plate 8 and is used to drive the movable plate 12 to move up and down. The upper fixture 26 is mounted on the bottom surface of the movable plate 12 and is used to hold the PCB board placed on the lower fixture. In this embodiment, the driving component 11 is a cylinder. In other embodiments, the driving component 11 can also be a hydraulic cylinder, an electric push rod, etc.

[0017] The lower fixture is detachably mounted on the fixed plate 9, which is equipped with multiple rotary pressing cylinders 17 (such as Airtac ACK and SRC series). The lower fixture is positioned above the fixed plate 9, and the rotary pressing cylinders 17 press the lower fixture firmly onto the fixed plate 9. Because the lower fixture is fixed using rotary pressing cylinders 17, it can be quickly disassembled and assembled, thus achieving the purpose of replacing the lower fixture.

[0018] In its specific structure, the lower fixture includes a base 18, a positioning plate 19, a spring guide post 20, and a limiting screw 21. The positioning plate 19 is movably positioned above the base 18. The top surface of the positioning plate 19 has a groove for accommodating the PCB board. The positioning plate 19 also has a stepped hole 27. The limiting screw 21 passes through the stepped hole 27 on the positioning plate 19 and locks onto the base 18. The spring guide post 20 is located between the base 18 and the positioning plate 19. The spring guide post 20 pushes the positioning plate 19 upwards, raising it to its highest point to contact the head of the limiting screw 21. The spring guide post 20, also called an ejector pin, is a commonly used component in mold making and is sold in Taobao stores such as Kenda Mold Factory Store, Limek Hardware Store, and Xigui Precision Tools.

[0019] The mounting plate 9 is equipped with a PoGoPIN male terminal 21, which is connected to the device power supply. The base 18 is equipped with a PoGoPIN female terminal 22 and a power connector 23 (there are multiple power connectors, only one is shown in the figure). The power connector 23 is electrically connected to the PoGoPIN female terminal 22, and the PoGoPIN female terminal 22 is inserted into the PoGoPIN male terminal 21 on the mounting plate 9. The positioning plate 19 is provided with a through hole 24 that connects to the groove. The power connector 23 is aligned with the through hole 24 on the positioning plate 19. The driving component 11 presses down on the positioning plate 19 through the upper fixture 26. When the positioning plate 19 moves down, the power connector 23 is inserted into the groove through the through hole 24 to achieve an electrical connection with the PCB board placed in the groove.

[0020] By replacing the upper fixture 26 and the lower fixture, it is compatible with the testing of various PCB boards. A rotary pressing cylinder is used for quick-release of the lower fixture. The bottom of the lower fixture and the fixing plate are respectively equipped with PoGoPIN female and PoGoPIN male terminals. When the rotary pressing cylinders on both sides of the lower fixture press down, they can fix the lower fixture and automatically power on by plugging and unplugging the PoGoPIN female and PoGoPIN male terminals, replacing the traditional manual power-on and screw tightening. Changing the fixture allows for testing of various PCB boards. The lower fixture's quick-release structure reduces cable change time.

[0021] Preferably, both the feeding line 2 and the discharging line 3 are belt conveyors (including a motor, pulleys, and belts). In other embodiments, the feeding line 2 and the discharging line 3 may also be other types of conveyors.

[0022] The moving mechanism 5 includes a bracket 51, a diagonal brace 52, a linear module 53, and a lifting cylinder 54. One end of the linear module 53 is fixed to the bracket 51, and the other end extends beyond the worktable 1 and rests on the diagonal brace 52. The diagonal brace 52 is fixed to the worktable 1 (the diagonal brace 52 can be fixed to the equipment frame or installed on the worktable 1). The lifting cylinder 54 is installed on the linear module 53, and the linear module 53 drives the lifting cylinder 54 to move horizontally (X-axis). A mounting plate 55 is installed at the bottom of the lifting cylinder 54, and a suction cup 56 and a pneumatic finger 57 are installed at the bottom of the mounting plate 55. The suction cup 56 is used to adsorb PCB boards, and the finger cylinder is used to clamp the terminals on the PCB board. The lifting cylinder 54 drives the mounting plate 55 to rise and fall along the Z-axis. In actual use, the equipment can be placed next to a production line, and qualified PCB products can be moved to the production line by moving the bracket 51 and transported to the subsequent process. Alternatively, a storage basket can be placed next to the equipment to put qualified products into the storage basket. Because the PCB board is relatively large, a pneumatic finger gripper and suction cup integrated design is adopted to ensure that the PCB board will not tilt after being gripped.

[0023] In this embodiment, a lifting cylinder 24 is provided on the workbench, and a mounting plate 25 is installed on the lifting cylinder 24. The robotic arm places qualified PCB boards on the mounting plate 25, and then the moving mechanism moves the PCB boards on the mounting plate 25 to the production line next to the equipment. Specifically, the lifting cylinder 24 first lifts the PCB board, and the moving mechanism 5 moves along the X and Z axes. A combination of suction cups and pneumatic fingers grips the PCB board to ensure that it does not fall during the movement, and the PCB board is moved to the production line next to the equipment for automatic unloading.

[0024] The above-described embodiments are only used to illustrate the technical solutions of this utility model, and are not intended to limit it. Although this utility model has been described in detail with reference to the foregoing embodiments, those skilled in the art should understand that modifications can still be made to the technical solutions described in the foregoing embodiments, or equivalent substitutions can be made to some of the technical features. These modifications or substitutions do not cause the corresponding technical solutions to deviate from the spirit and scope of the technical solutions of the embodiments of this utility model. Therefore, all other embodiments obtained by those skilled in the art without creative effort are within the protection scope of this utility model.

Claims

1. A multi-station automatic testing device for PCB boards, characterized in that, The system includes a workbench equipped with an infeed line, an outfeed line, a robotic arm, a moving mechanism, and multiple pressing mechanisms. Each pressing mechanism corresponds to a testing station, and the system has multiple DDR testing stations and multiple DSP programming and semi-finished product testing stations. The robotic arm is used to move the position of the PCB board, the moving mechanism is used to transfer qualified PCB boards to the outside of the equipment, and the outfeed line is used to transfer unqualified PCB boards to the outside of the equipment.

2. The PCB board multi-station automatic testing equipment according to claim 1, characterized in that, The pressing mechanism includes a top plate, a fixed plate, guide columns, a drive unit, a moving plate, an upper fixture, and a lower fixture. The lower fixture is mounted on the fixed plate. The top plate is mounted above the fixed plate via the guide columns. The moving plate is located between the top plate and the fixed plate. A guide sleeve is mounted on the moving plate and slides on the guide columns. The drive unit is fixedly mounted on the top plate and is used to drive the moving plate to move up and down. The upper fixture is mounted on the bottom surface of the moving plate to hold the PCB board placed on the lower fixture.

3. The PCB board multi-station automatic testing equipment according to claim 2, characterized in that, The lower fixture includes a base, a positioning plate, a spring guide post, and a limit screw. The positioning plate is movably mounted above the base. The top surface of the positioning plate has a groove for accommodating the PCB board. The positioning plate has stepped holes. The limit screw passes through the stepped holes on the positioning plate and locks itself onto the base. A spring guide post is provided between the base and the positioning plate.

4. The PCB board multi-station automatic testing equipment according to claim 3, characterized in that, The mounting plate is equipped with a PoGoPIN male terminal, which is connected to the device power supply. The base is equipped with a PoGoPIN female terminal and a power-connecting pin. The power-connecting pin is electrically connected to the PoGoPIN female terminal. The PoGoPIN female terminal is inserted into the PoGoPIN male terminal on the fixing plate. The positioning plate has through holes with connecting grooves. The power-connecting pin is aligned with the through holes on the positioning plate. The driving component presses down the positioning plate through the upper fixture. When the positioning plate moves down, the electrical pin is inserted into the groove through the through hole to achieve electrical connection with the PCB board placed in the groove.

5. The PCB board multi-station automatic testing equipment according to claim 2, characterized in that, Multiple rotary pressing cylinders are mounted on the fixed plate, and the lower fixture is detachably mounted on the fixed plate via the rotary pressing cylinders.

6. The PCB board multi-station automatic testing equipment according to claim 1, characterized in that, The moving mechanism includes a bracket, a diagonal brace, a linear module, and a lifting cylinder. One end of the linear module is fixed to the bracket, and the other end extends out of the worktable and is placed on the diagonal brace. The diagonal brace is fixed to the worktable. The lifting cylinder is installed on the linear module, and the linear module drives the lifting cylinder to move horizontally. A mounting plate is installed at the bottom of the lifting cylinder. A suction cup and a pneumatic finger are installed at the bottom of the mounting plate. The suction cup is used to adsorb the PCB board, and the finger cylinder is used to clamp the wiring terminals on the PCB board. The lifting cylinder drives the mounting plate to move up and down along the Z-axis.

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