PCB finished board voltage resistance test base station

Abstract

The utility model discloses a kind of PCB finished plate voltage withstand test base, including base body and PCB finished plate, base body top is equipped with carousel, carousel is laid with clamping station, clamping station includes base and clamping cylinder, PCB finished plate is placed in base, carousel left side and back side are respectively equipped with CCD industrial camera and probe device, probe device includes lifting cylinder, cross bar and probe deviation rectification component, probe deviation rectification component top is equipped with first screw rod holder and second screw rod holder, second screw rod holder is equipped with probe box, probe box is equipped with probe.The utility model realizes the feeding of PCB finished plate by the structure of carousel, positioning, voltage withstand test and discharge, and the design is ingenious;PCB finished plate is positioned by CCD industrial camera, and rear probe is adjusted left and right according to positioning information by first screw rod holder and second screw rod holder, accurately voltage withstand test is carried out to PCB finished plate, and accuracy is high;The utility model structure is novel, can improve voltage withstand test efficiency and quality, is suitable for promotion.

Description

Technical Field

[0001] This utility model relates to the field of pressure resistance testing equipment manufacturing technology, and more specifically to a pressure resistance testing base for finished PCB boards. Background Technology

[0002] After the production of the PCB circuit board to be tested is completed, it needs to be tested using a withstand voltage tester to ensure that the PCB circuit board meets various performance characteristics. Only after passing the test can it be shipped for sale. Currently, withstand voltage testing of PCB circuit boards is mostly done manually. The conventional method involves placing the PCB circuit board to be tested into a special positioning test fixture, and manually performing the clamping, connecting test points, powering on, and observing the instrument. Only one product can be tested at a time. Manual testing is prone to worker fatigue, resulting in misjudgments and low testing accuracy. Defective products entering the market due to misjudgments can pose safety hazards. Furthermore, manual testing methods are inefficient and prone to accidents such as electric shock. To address these issues, the inventors propose a PCB finished board withstand voltage testing platform. By setting up a turntable, combined with a CCD industrial camera and a probe with correction function, automatic withstand voltage testing of PCB finished boards can be achieved, effectively improving testing accuracy and efficiency, reducing worker labor intensity, and increasing yield.

[0003] To improve the efficiency and safety of withstand voltage testing of finished PCB boards and achieve automated testing, Chinese Patent (Authorization Announcement No.: CN209502293U) discloses a high-precision PCB withstand voltage testing device. This utility model includes a support frame, a conveyor device, a withstand voltage tester, a detection device, a rejection device, and a PCB circuit board to be tested. The support frame is a three-dimensional frame; the transmission device includes a first servo motor, a drive gear, a driven gear, and a conveyor belt. The first servo motor is fixedly mounted on the support frame, the drive gear is mounted on the output shaft of the first servo motor, and the support frame has a driven gear shaft. The driven gear is mounted on the driven gear shaft. The conveyor belt meshes with the drive gear and the driven gear. The PCB circuit board to be tested is placed on the conveyor belt. This utility model has a novel structure, high working efficiency, high safety factor, and high measurement accuracy.

[0004] This solution still has some shortcomings in application. Because the PCB contains numerous components with highly precise positioning, the probes must not only clamp the PCB tightly during withstand voltage testing but also ensure accurate component placement. Otherwise, inaccurate positioning can easily lead to component burnout during testing, resulting in overall PCB damage. Furthermore, the withstand voltage test platform needs to facilitate easy loading and unloading by workers to prevent PCBs from falling and causing damage. Therefore, the structure of the PCB withstand voltage test platform needs to be improved to overcome the aforementioned limitations, enabling accurate withstand voltage testing, increasing the PCB test success rate, and ensuring safe loading and unloading of PCB components. Utility Model Content

[0005] This utility model discloses a PCB finished board withstand voltage test base, the main purpose of which is to overcome the above-mentioned deficiencies and shortcomings of the existing technology.

[0006] The technical solution adopted in this utility model is as follows:

[0007] A PCB finished board withstand voltage test platform includes a platform body and a PCB finished board. A turntable is provided at the top center of the platform body. Four clamping platforms are arranged on the turntable. Each clamping platform includes a base and clamping cylinders on all four sides. The base has an embedding groove. The PCB finished board is movably embedded in the embedding groove. A CCD industrial camera and a probe device are respectively installed on the left and rear sides of the turntable. The probe device includes a lifting cylinder, a crossbar, and a probe correction assembly. A first lead screw frame is provided on the top of the probe correction assembly. A second lead screw frame is mounted on the first lead screw frame. A probe box is mounted on the second lead screw frame. A probe is provided on the probe box. The probe can be adjusted by moving back and forth and left and right through the first lead screw frame and the second lead screw frame.

[0008] Furthermore, a pressure resistance test assembly is provided at the bottom of the base body, which is connected to the probe box.

[0009] Furthermore, the driving ends of the clamping cylinders all clamp the finished PCB board to one side of the center, and an air pump is installed on one side of each clamping cylinder.

[0010] Furthermore, a rotating motor is installed at the bottom of the turntable, and the turntable can rotate via the rotating motor.

[0011] Furthermore, one end of the crossbar is connected to the drive end of the lifting cylinder, and the other end is connected to the probe correction assembly, which can be raised and lowered by the lifting cylinder.

[0012] Furthermore, the first lead screw is provided in the middle of the first lead screw frame, and a first moving block is sleeved on the first lead screw. The first moving block is connected to the second lead screw frame. The second lead screw is provided in the middle of the second lead screw frame, and a second moving block is sleeved on the second lead screw. The second moving block is in close contact with the probe box. Motors are installed at the ends of both the first lead screw frame and the second lead screw frame.

[0013] Furthermore, the top of the base body is equipped with a dust cover, and a touch screen and a display screen are respectively installed on the front and rear sides of the dust cover. The touch screen is connected to the CCD industrial camera, the clamping cylinder, the lifting cylinder and the motor control, and the display screen is connected to the probe display.

[0014] Furthermore, the dust cover has an opening on its front side, and an operating table is correspondingly provided on the front side of the opening. The operating table and the opening are used for feeding and discharging materials.

[0015] As can be seen from the above description of this utility model, compared with the prior art, the advantages of this utility model are as follows:

[0016] This invention first utilizes a turntable structure to achieve PCB board loading, positioning, withstand voltage testing, and sorting / unloading. This design facilitates better loading, unloading, and withstand voltage testing of PCB boards, improving testing efficiency even for manual operation. Next, the PCB boards are placed on the base of the clamping table and clamped by a clamping cylinder. A CCD industrial camera then positions the boards, and a probe adjusts forward, backward, left, and right based on the positioning information via a first and second lead screw. The probe is then precisely moved to the components on the PCB board via a lifting cylinder for withstand voltage testing. This design effectively improves testing accuracy and prevents damage to the PCB boards due to accidental contact. Finally, the tested PCB boards are rotated to the operating table, where workers separate them according to the test results displayed on the screen, effectively preventing electric shock accidents and ensuring testing safety. This invention features a novel structure, ingenious design, and high level of automation, effectively improving the efficiency and quality of withstand voltage testing for PCB boards while maintaining high safety, making it suitable for widespread application. Attached Figure Description

[0017] Figure 1 This is a schematic diagram of the structure of this utility model.

[0018] Figure 2 This is a top view of the turntable structure of this utility model.

[0019] Figure 3 This is a side view of the probe device of this utility model.

[0020] Figure 4This is a structural schematic diagram of the first lead screw frame, the second lead screw frame, and the probe box of this utility model. Detailed Implementation

[0021] The specific embodiments of this utility model will be further described below with reference to the accompanying drawings.

[0022] like Figures 1 to 4 As shown, a PCB finished board withstand voltage test base includes a base body 1 and a PCB finished board 2. The base body 1 has a turntable 3 at the top center, and four clamping platforms 4 are arranged on the turntable 3. Each clamping platform 4 includes a base 5 and clamping cylinders 6 on all four sides. The base has an embedding groove (not shown in the schematic diagram due to viewing angle). The PCB finished board 2 is movably embedded in the embedding groove. A CCD industrial camera 7 and a probe device 8 are respectively installed on the left and rear sides of the turntable 3. The probe device 8 includes a lifting cylinder 81, a crossbar 82, and a probe correction assembly 83. The probe correction assembly 83 has a first lead screw frame 9 on top, and a second lead screw frame 10 is installed on the first lead screw frame 9. A probe box 11 is installed on the second lead screw frame 10, and a probe 12 is installed on the probe box 11. The probe 12 can be adjusted by moving back and forth and left and right through the first lead screw frame 9 and the second lead screw frame 10.

[0023] Furthermore, the base body 1 is provided with a pressure resistance test component at its bottom (not shown in the schematic diagram due to viewing angle), which is connected to the probe box 11.

[0024] Furthermore, the driving ends of the clamping cylinders 6 all clamp the finished PCB board 2 towards the middle, and each of the clamping cylinders 6 is equipped with an air pump 13.

[0025] Furthermore, a rotating motor is installed at the bottom of the turntable 3 (not shown in the schematic diagram due to viewing angle), and the turntable 3 can rotate via the rotating motor.

[0026] Furthermore, one end of the crossbar 82 is connected to the drive end of the lifting cylinder 81, and the other end is connected to the probe correction assembly 83. The probe correction assembly 83 can be raised and lowered via the lifting cylinder 81.

[0027] Furthermore, the first lead screw frame 9 has a first lead screw 91 in the middle, and the first lead screw 91 is sleeved with a first moving block (not shown in the schematic diagram due to viewing angle). The first moving block is connected to the second lead screw frame 10. The second lead screw frame 10 has a second lead screw 101 in the middle, and the second lead screw 101 is sleeved with a second moving block (not shown in the schematic diagram due to viewing angle). The second moving block is fitted and connected to the probe box 11. Motors 14 are installed at the ends of both the first lead screw frame 9 and the second lead screw frame 10.

[0028] Furthermore, the base body 1 is provided with a dust cover 15 on the top, and a touch screen 16 and a display screen 17 are respectively installed on the front and rear sides of the dust cover 15. The touch screen 16 is connected to the CCD industrial camera 7, the clamping cylinder 6, the lifting cylinder 81 and the motor 14 for control, and the display screen 17 is connected to the probe 12 for display.

[0029] Furthermore, the dust cover 15 has an opening 18 on its front side, and an operating table 19 is correspondingly provided on the front side of the opening 18. The operating table 19 and the opening 18 are used for feeding and discharging materials.

[0030] Example: First, the worker stands in front of the operating table 19 and places the finished PCB board 2 through the opening 18 of the dust cover 15 onto the base 5 of the clamping table 4 on the turntable 3, and clamps it in place with the clamping cylinder 6. Next, the turntable 3 is driven to rotate by a rotating motor, rotating the finished PCB board 2 to a position below the CCD industrial camera 7 for image capture and positioning. The positioning information is then sent to the touch screen 16. Next, the finished PCB board 2 rotates to a position below the probe device 8. Based on the positioning information of the finished PCB board 2 obtained from the touch screen 16, the probe correction component 83 adjusts its position (front, back, left, right) via the first lead screw 9 and the second lead screw 10. After adjustment, the probe correction component 83 is driven downward by the lifting cylinder 81, and the probe 12 contacts the finished PCB board 2 for a withstand voltage test. Finally, the test results are displayed on the display screen 17 for the worker to view. The finished PCB board 2 continues to rotate on the turntable 3 to the opening 18, the clamping cylinder 6 is released, and the worker separates the qualified and unqualified finished PCB boards, completing the material collection process.

[0031] As can be seen from the above description of this utility model, compared with the prior art, the advantages of this utility model are as follows:

[0032] This invention first utilizes a turntable structure to achieve PCB board loading, positioning, withstand voltage testing, and sorting / unloading. This design facilitates better loading, unloading, and withstand voltage testing of PCB boards, improving testing efficiency even for manual operation. Next, the PCB boards are placed on the base of the clamping table and clamped by a clamping cylinder. A CCD industrial camera then positions the boards, and a probe adjusts forward, backward, left, and right based on the positioning information via a first and second lead screw. The probe is then precisely moved to the components on the PCB board via a lifting cylinder for withstand voltage testing. This design effectively improves testing accuracy and prevents damage to the PCB boards due to accidental contact. Finally, the tested PCB boards are rotated to the operating table, where workers separate them according to the test results displayed on the screen, effectively preventing electric shock accidents and ensuring testing safety. This invention features a novel structure, ingenious design, and high level of automation, effectively improving the efficiency and quality of withstand voltage testing for PCB boards while maintaining high safety, making it suitable for widespread application.

[0033] The above are merely specific embodiments of this utility model, but the design concept of this utility model is not limited thereto. Any non-substantial improvements made to this utility model using this concept should be considered as infringing on the protection scope of this utility model.

Claims

1. A withstand voltage test platform for finished PCB boards, characterized in that: The device includes a base body and a finished PCB board. The base body has a turntable at the top center, on which four clamping platforms are arranged. Each clamping platform includes a base and clamping cylinders on all four sides. The base has an embedding slot, and the finished PCB board is movably embedded in the embedding slot. A CCD industrial camera and a probe device are respectively mounted on the left and rear sides of the turntable. The probe device includes a lifting cylinder, a crossbar, and a probe correction assembly. The probe correction assembly has a first lead screw frame at the top, and a second lead screw frame is mounted on the first lead screw frame. A probe box is mounted on the second lead screw frame, and a probe is mounted on the probe box. The probe can be adjusted by moving back and forth and left and right through the first lead screw frame and the second lead screw frame.

2. The PCB finished board withstand voltage test base according to claim 1, characterized in that: The base body is equipped with a pressure resistance test component at its bottom, which is connected to the probe box.

3. The PCB finished board withstand voltage test base according to claim 1, characterized in that: The driving ends of the clamping cylinders all clamp the finished PCB board to one side of the middle, and an air pump is installed on one side of each clamping cylinder.

4. The PCB finished board withstand voltage test base according to claim 1, characterized in that: The turntable is equipped with a rotating motor at its bottom, and the turntable can rotate via the rotating motor.

5. The PCB finished board withstand voltage test base according to claim 1, characterized in that: One end of the crossbar is connected to the drive end of the lifting cylinder, and the other end is connected to the probe correction assembly. The probe correction assembly can be raised and lowered by the lifting cylinder.

6. The PCB finished board withstand voltage test base according to claim 1, characterized in that: The first lead screw is provided in the middle of the first lead screw frame, and a first moving block is sleeved on the first lead screw. The first moving block is connected to the second lead screw frame. The second lead screw is provided in the middle of the second lead screw frame, and a second moving block is sleeved on the second lead screw. The second moving block is in close contact with the probe box. A motor is installed at the end of both the first lead screw frame and the second lead screw frame.

7. The PCB finished board withstand voltage test base according to claim 6, characterized in that: The base body is equipped with a dust cover on its top. The front and rear sides of the dust cover are respectively equipped with a touch screen and a display screen. The touch screen is connected to the CCD industrial camera, the clamping cylinder, the lifting cylinder and the motor control, respectively. The display screen is connected to the probe display.

8. The PCB finished board withstand voltage test base according to claim 7, characterized in that: The dust cover has an opening on its front side, and an operating table is correspondingly provided on the front side of the opening. The operating table and the opening are used for feeding and discharging materials.

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