FCT test equipment based on turnover mechanism

Abstract

The utility model discloses an FCT test device based on a turnover mechanism, which comprises a needle plate, a jig, a turnover mechanism and a lifting mechanism, the turnover mechanism is used for turning over the jig to a position below the needle plate, the turnover mechanism comprises a motor, a rotating shaft and a rotating seat, two ends of the rotating shaft are rotatably arranged in the rotating seat in a penetrating manner, and the lifting mechanism is used for lifting the jig to the position below the needle plate. The output end of the motor is connected with one end of the rotating shaft, the outer side wall of the rotating shaft is fixedly connected with one side of the jig, and the lifting mechanism is used for controlling the needle plate to ascend and descend.

Description

Technical Field

[0001] This invention relates to an FCT testing device based on a flipping mechanism. Background Technology

[0002] Functional testing (FCT) refers to a testing method that provides a simulated operating environment (stimuli and loads) to the test target board (UUT), causing it to operate in various design states, thereby obtaining parameters for each state to verify the functionality of the UUT. Simply put, it involves applying appropriate stimuli to the UUT and measuring whether the output response meets requirements. It generally specifically refers to the functional testing of PCBAs.

[0003] FCT testing equipment typically requires manual clamping of the PCB in a fixture, followed by pressing the probe bed onto it to make the test probes contact the test points on the PCB. In existing equipment, the probe bed usually uses a vertical lifting and rotating flip-top structure to complete the contact and separation with the PCB. In the vertical lifting structure, since the workstation needs to be located directly below the probe bed, the probe bed needs to be raised high enough to facilitate the loading of the PCB. This increases the gravitational potential energy of the probe bed. To prevent the probe bed from damaging the PCB due to excessive gravitational potential energy, a buffer mechanism is required. The higher the probe bed, the higher the requirements for the buffer mechanism. This undoubtedly increases the processing cost, and increasing the lifting stroke can also easily cause the mechanism to malfunction. Utility Model Content

[0004] The purpose of this invention is to overcome the shortcomings of the prior art and provide an FCT testing device based on a flipping mechanism.

[0005] An FCT testing device based on a flipping mechanism includes a needle plate, a fixture, a flipping mechanism, and a lifting mechanism. The flipping mechanism is used to flip the fixture to the underside of the needle plate. The flipping mechanism includes a motor, a rotating shaft, and a rotating base. The two ends of the rotating shaft are rotatably inserted into the rotating base. The output end of the motor is connected to one end of the rotating shaft. The outer wall of the rotating shaft is fixedly connected to one side of the fixture. The lifting mechanism is used to control the lifting and lowering of the needle plate.

[0006] Furthermore, the lifting mechanism includes a slide rail and a slider. The slide rail is mounted on the surface of the fixed plate, and the slider is connected to the needle plate. The slider and the slide rail slide together.

[0007] Furthermore, the number of sliders is two.

[0008] Furthermore, the lower end face of the needle plate is provided with a needle bed and a buffer mechanism. The buffer mechanism includes multiple bolts and springs. The bottom of the bolts passes through the lower end face of the needle plate, and springs are sleeved on the bolts. The two ends of the springs are respectively connected to the lower end face of the needle plate and the head of the bolts.

[0009] Furthermore, the fixture includes a tooling plate, the upper surface of which is provided with at least one station for clamping the PCB, the surface of which is provided with multiple clearance holes for needles to pass through, and a clamping buckle for fixing the PCB is provided near the station.

[0010] Furthermore, the buckle includes a pressure block, a buckle body, and a spring. One end of the buckle body has a through hole, and the tooling plate has a threaded hole. The buckle body is connected to the mounting plate by bolts. A spring is provided between the head of the bolt and the surface of the buckle body. The spring is sleeved on the outside of the bolt, and the pressure block is located at the other end of the buckle body.

[0011] Furthermore, both the lifting mechanism and the tilting mechanism are mounted on the mounting platform, and a raised platform is provided directly below the needle plate to support the fixture.

[0012] Furthermore, the lower end face of the tooling plate is provided with a support member.

[0013] Beneficial effects: Compared with the prior art, the present invention has the following advantages:

[0014] The fixture can be easily flipped under the needle plate using a motor-driven flipping mechanism, simplifying the testing process and improving efficiency. This design enables the testing equipment to automatically flip the fixture, reducing reliance on manual operation and increasing the level of automation in the testing process.

[0015] The lifting mechanism employs a slide rail and slider design, ensuring the stability and accuracy of the needle plate during lifting. The sliding cooperation between the slider and the slide rail makes the movement of the needle plate smoother, avoiding testing errors caused by shaking or deviation. At the same time, the design of two sliders further enhances the stability of the lifting mechanism.

[0016] The buffer mechanism located on the lower end face of the needle plate, through a combination of bolts and springs, provides excellent cushioning for the needle plate. This not only reduces noise and vibration caused by impact during the descent of the needle plate, but also effectively protects the needle plate and test needles from damage, extending the service life of the equipment.

[0017] The fixture features multiple PCB clamping stations and clearance holes, as well as clamps for securing the PCB, enabling the testing equipment to adapt to the testing needs of PCBs of different sizes and types. The clamps are not only simple and easy to use, but also provide a stable hold, ensuring accuracy and reliability during testing.

[0018] Both the lifting and tilting mechanisms are mounted on the mounting platform, making the overall layout of the testing equipment more compact and rational. A raised platform is located directly beneath the needle plate to support the fixture after tilting, ensuring stability and safety during testing. Meanwhile, the support components on the lower end face of the tooling plate further enhance the fixture's stability and load-bearing capacity. Attached Figure Description

[0019] Figure 1 This is a schematic diagram of an FCT testing device based on a flipping mechanism;

[0020] Figure 2 This is a side view of an FCT testing device based on a flipping mechanism;

[0021] In the diagram, 1 is the mounting platform, 2 is the slide rail, 3 is the slider, 4 is the needle plate, 5 is the needle bed, 6 is the buffer mechanism, 7 is the raised platform, 8 is the tooling plate, 9 is the snap fastener, 10 is the support component, 11 is the motor, 12 is the rotating seat, and 13 is the rotating shaft. Detailed Implementation

[0022] To enhance understanding of this utility model, the present utility model will be further described in detail below with reference to the embodiments and accompanying drawings. These embodiments are only used to explain the present utility model and do not constitute a limitation on the scope of protection of the present utility model.

[0023] like Figure 1-2 As shown, the components are: mounting platform 1, slide rail 2, slider 3, needle plate 4, needle bed 5, buffer mechanism 6, raised platform 7, tooling plate 8, snap fastener 9, support component 10, motor 11, rotating seat 12, and rotating shaft 13.

[0024] An FCT testing device based on a flipping mechanism includes a needle plate 4, a fixture, a flipping mechanism, and a lifting mechanism. The flipping mechanism is used to flip the fixture to the underside of the needle plate 4. The flipping mechanism includes a motor 11, a rotating shaft 13, and a rotating seat 12. The two ends of the rotating shaft 13 are rotatably inserted into the rotating seat 12. The output end of the motor 11 is connected to one end of the rotating shaft 13. The outer wall of the rotating shaft 13 is fixedly connected to one side of the fixture. The lifting mechanism is used to control the lifting and lowering of the needle plate 4.

[0025] In this example, the lifting mechanism includes a slide rail 2 and a slider 3. The slide rail 2 is mounted on the surface of the fixed plate, and the slider 3 is connected to the needle plate 4. The slider 3 and the slide rail 2 are in sliding cooperation.

[0026] In this example, the number of sliders 3 is two.

[0027] In this example, the lower end face of the needle plate 4 is provided with a needle bed 5 and a buffer mechanism 6. The buffer mechanism 6 includes multiple bolts and springs. The bottom of the bolts passes through the lower end face of the needle plate 4, and springs are sleeved on the bolts. The two ends of the springs are respectively connected to the lower end face of the needle plate 4 and the head of the bolts.

[0028] In this example, the fixture includes a tooling plate 8, the upper surface of which is provided with at least one station for clamping a PCB, the surface of which is provided with a plurality of clearance holes for needles to pass through, and a clamping buckle 9 for fixing the PCB is provided near the station.

[0029] In this example, the snap fastener 9 includes a pressure block, a snap body, and a spring. One end of the snap body has a through hole, and the tooling plate 8 has a threaded hole. The snap body is connected to the mounting plate by bolts. A spring is provided between the head of the bolt and the surface of the snap body. The spring is sleeved on the outside of the bolt, and the pressure block is located at the other end of the snap body.

[0030] In this example, both the lifting mechanism and the flipping mechanism are mounted on the mounting platform 1. A raised platform 7 is provided directly below the needle plate 4. The raised platform 7 is used to support the fixture. It should be noted that the raised platform 7 is used to support the fixture after it is flipped, so that the tooling plate 8 and the needle plate 4 remain parallel, ensuring that the needle bed 5 can pass smoothly through the clearance hole on the workstation surface. At the same time, when the needle bed 5 contacts the PCB, it will also apply pressure to it. Without the raised platform 7, the fixture would shake and become unstable.

[0031] In this example, the lower end face of the tooling plate 8 is provided with a support member 10. It should be noted that the support member 10 is used to support the fixture before it is flipped, so that when the testing device is not working, the motor 11 does not need to work, and the other end of the tooling plate 8 will not fall onto the mounting table 1 and collide. If there is no support member 10, in order to keep the fixture from contacting the mounting table 1 and colliding, the motor 11 needs to apply an opposite rotational force to the rotating shaft 13. At the same time, the weight of the support member 10 is entirely borne by the rotating shaft 13, and the rotating shaft 13 is prone to breakage if it is subjected to torque for a long time.

[0032] Instructions for use: Place the PCB to be tested into the station of the fixture plate 8 and press it with the clamp 9 to prevent it from falling off. The pneumatic motor 11 drives the rotating shaft 13 to rotate, so that the fixture rotates to the raised platform 7 directly below the needle plate 4. Start the lifting mechanism to lower the needle plate 4, and the needle bed 5 passes through the clearance hole on the station to contact the PCB.

[0033] The above description is only a preferred embodiment of the present utility model and is not intended to limit the present utility model. Any modifications, equivalent substitutions, improvements, etc., made within the spirit and principles of the present utility model should be included within the protection scope of the present utility model.

Claims

1. An FCT testing device based on a flipping mechanism, characterized in that, The device includes a needle plate, a fixture, a flipping mechanism, and a lifting mechanism. The flipping mechanism is used to flip the fixture to the underside of the needle plate. The flipping mechanism includes a motor, a rotating shaft, and a rotating base. The two ends of the rotating shaft are rotatably inserted into the rotating base. The output end of the motor is connected to one end of the rotating shaft. The outer wall of the rotating shaft is fixedly connected to one side of the fixture. The lifting mechanism is used to control the lifting and lowering of the needle plate.

2. The FCT testing device based on a flipping mechanism according to claim 1, characterized in that, The lifting mechanism includes a slide rail and a slider. The slide rail is mounted on the surface of the fixed plate, and the slider is connected to the needle plate. The slider and the slide rail slide together.

3. The FCT testing device based on a flipping mechanism according to claim 2, characterized in that, The number of sliders is two.

4. The FCT testing device based on a flipping mechanism according to claim 1, characterized in that, The lower end face of the needle plate is provided with a needle bed and a buffer mechanism. The buffer mechanism includes multiple bolts and springs. The bottom of the bolts passes through the lower end face of the needle plate, and springs are sleeved on the bolts. The two ends of the springs are respectively connected to the lower end face of the needle plate and the head of the bolts.

5. The FCT testing device based on a flipping mechanism according to claim 1, characterized in that, The fixture includes a tooling plate, the upper surface of which is provided with at least one station for clamping a PCB. The surface of the station is provided with multiple clearance holes for needles to pass through, and a clamping buckle for fixing the PCB is provided near the station.

6. The FCT testing device based on a flipping mechanism according to claim 5, characterized in that, The buckle includes a pressure block, a buckle body, and a spring. One end of the buckle body has a through hole, and the tooling plate has a threaded hole. The buckle body is connected to the mounting plate by bolts. A spring is provided between the head of the bolt and the surface of the buckle body. The spring is sleeved on the outside of the bolt, and the pressure block is located at the other end of the buckle body.

7. The FCT testing device based on a flipping mechanism according to any one of claims 1-6, characterized in that, Both the lifting mechanism and the tilting mechanism are mounted on the mounting platform, and a raised platform is provided directly below the needle plate to support the fixture.

8. The FCT testing device based on a flipping mechanism according to claim 6, characterized in that, The tooling plate has a support member on its lower end face.

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