Testing device

Abstract

The utility model discloses a testing device, which relates to the technical field of circuit boards and comprises a base. The supporting frame is arranged on the base; the tray is arranged on the base, the tray is used for bearing a circuit board, and the circuit board is provided with a protruding test position; the cover plate is provided with through holes, and the cover plate is arranged on the tray and movably connected with the tray so as to press the circuit board on the tray to enable the test positions to penetrate through the corresponding through holes; the lifting assembly is arranged on the supporting frame; and the lifting assembly is in driving connection with the detection assembly so as to drive the detection assembly to ascend and descend, so that the detection assembly is in contact with the test position. According to the technical scheme provided by the utility model, the circuit board can be prevented from being damaged due to the movement of the circuit board under the driving of friction force when the detection assembly ascends, and the accuracy of subsequent multiple measurement data of the circuit board is improved.

Description

Technical Field

[0001] This utility model relates to the field of circuit board technology, and in particular to a testing device. Background Technology

[0002] PCBs are now widely used in various electronic products, leading to increasingly stringent quality requirements. During PCB production, various methods are employed to assess performance indicators such as conductivity and insulation. These methods include visual inspection, in-circuit ICT (In-Circuit Testing), flying probe testing, AOI (Automated Optical Inspection), automated X-ray inspection, and test fixtures. For example, a test fixture uses a series of precisely arranged probes to contact test points on the PCB. However, in practice, after testing, when the probes move away from the circuit board, the physical contact force between the probes and the board, as well as the friction generated during movement, can cause displacement or even damage to the PCB. Furthermore, this positional change can affect the positioning accuracy of subsequent test points, thus impacting the accuracy of the test results. Utility Model Content

[0003] The main objective of this invention is to provide a testing device designed to prevent circuit board movement during testing.

[0004] To achieve the above objectives, the testing device proposed in this utility model includes:

[0005] Base;

[0006] A support frame is provided on the base;

[0007] A tray, located on the base, is used to support a circuit board having protruding test positions.

[0008] A cover plate with a through hole is disposed on the tray and movably connected to the tray to press the circuit board on the tray so that the test position passes through the corresponding through hole;

[0009] A lifting assembly is provided on the support frame; and

[0010] A detection component, wherein the lifting component is driven to connect to the detection component to drive the detection component to rise and fall so that the detection component contacts the test position.

[0011] In one embodiment, the cover plate has a notch at its edge, and the testing device further includes a snap fastener. The snap fastener is disposed corresponding to the notch and is rotatably connected to the tray to have a first state and a second state. In the first state, the snap fastener rotates into the notch so that the cover plate can be separated from the tray. In the second state, the snap fastener rotates to be misaligned with the notch and cooperates with the tray to press the cover plate.

[0012] In one embodiment, multiple test positions, through holes, and detection components are provided, and each through hole and detection component is provided in a one-to-one correspondence with a test position.

[0013] In one embodiment, multiple lifting components are provided, and each lifting component is driven to connect to a mounting block. The mounting block has at least one detection component on the side facing the tray.

[0014] In one embodiment, the testing device further includes a mounting frame disposed on the base, a support frame disposed above the mounting frame, and the output end of the lifting assembly passing downward through the mounting frame and connected to the mounting block.

[0015] In one embodiment, the mounting block has at least one guide post on the side away from the tray, and the mounting frame has at least one guide hole. The guide post is located in the guide hole and slides in the guide hole when the mounting block is raised or lowered.

[0016] In one embodiment, the tray has a slot, and the circuit board is placed in the slot.

[0017] In one embodiment, the tray is slidably disposed on the base.

[0018] In one embodiment, a handle is provided on one side of the tray.

[0019] In one embodiment, the testing apparatus further includes an analyzer that is communicatively connected to the detection component.

[0020] In the technical solution of this utility model, the testing device includes a base, on which a support frame and a tray are mounted. The tray is used to place the circuit board, and a cover plate is detachably installed on top of the tray. The cover plate is installed on the tray to press the circuit board on the tray. The cover plate has through holes corresponding to the test positions of the circuit board. When the cover plate is installed on the tray, the test position is positioned in the through hole. A lifting component is installed on the support frame. The lifting component drives and connects to a detection component, and drives the detection component to rise and fall. When it is necessary to test the continuity and insulation status of the circuit board, the lifting component drives the detection component to fall, so that the detection component passes through the through hole to contact the test position and perform the test, and record the test results. After the test is completed, the lifting component drives the detection component to rise and leave the test position. Because the cover plate presses the circuit board, the circuit board can be prevented from moving during the test, which would affect the test accuracy. It also prevents the circuit board from moving due to friction when the detection component rises, which would cause damage to the circuit board. It also improves the accuracy of subsequent multiple measurement data of the circuit board. In addition, the cover plate is connected to the tray, and when the lifting component drives the detection component to move, it will not cause the cover plate to move with it, which can also avoid damage to the circuit board. Attached Figure Description

[0021] In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the following briefly introduces the drawings required for use in the embodiments or the description of the prior art. Obviously, the drawings described below are only some embodiments of the present invention. For ordinary technicians in this field, other drawings can be obtained based on the structures shown in these drawings without paying any creative work.

[0022] Figure 1 A schematic diagram of the structure of an embodiment of the testing device provided by this utility model;

[0023] Figure 2 A schematic diagram of the lifting assembly provided by this utility model;

[0024] Figure 3 This is a schematic diagram of the structure of the tray and circuit board provided by this utility model;

[0025] Figure 4 This is a structural schematic diagram of the tray and cover plate provided by this utility model.

[0026] Explanation of icon numbers:

[0027] 100. Base; 110. Button; 120. Slide rail;

[0028] 200. Mounting bracket; 201. Guide hole; 210. Support bracket;

[0029] 300, tray; 301, slot; 310, snap fastener; 320, handle;

[0030] 400, cover plate; 410, through hole; 420, notch;

[0031] 500. Lifting assembly; 510. Mounting block; 520. Guide column; 530. Handle; 540. Linkage mechanism; 550. Drive rod; 560. Mounting base;

[0032] 600. Detection components;

[0033] 700, Circuit board; 710, Test position.

[0034] The realization of the purpose, functional features and advantages of the present invention will be further explained in conjunction with embodiments and with reference to the accompanying drawings. Detailed Implementation

[0035] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the scope of protection of the present utility model.

[0036] It should be noted that if the embodiments of this utility model involve directional indicators (such as up, down, left, right, front, back, etc.), the directional indicators are only used to explain the relative positional relationship and movement of the components in a specific posture. If the specific posture changes, the directional indicators will also change accordingly.

[0037] Furthermore, if the embodiments of this utility model involve descriptions such as "first" or "second," these descriptions are for descriptive purposes only and should not be construed as indicating or implying their relative importance or implicitly specifying the number of technical features indicated. Therefore, a feature defined with "first" or "second" may explicitly or implicitly include at least one of those features. Additionally, the use of "and / or" or "and / or" throughout the text includes three parallel solutions. For example, "A and / or B" includes solution A, solution B, or a solution where both A and B are satisfied simultaneously. Furthermore, the technical solutions of the various embodiments can be combined with each other, but this must be based on the ability of those skilled in the art to implement them. When the combination of technical solutions is contradictory or impossible to implement, it should be considered that such a combination of technical solutions does not exist and is not within the scope of protection claimed by this utility model.

[0038] Please see Figure 1 and Figure 4 In one embodiment of this utility model, the testing device includes:

[0039] Base 100;

[0040] Support frame 210 is disposed on the base 100;

[0041] A tray 300 is disposed on the base 100, the tray 300 is used to support a circuit board 700, the circuit board 700 having a protruding test position 710;

[0042] The cover plate 400 is provided with a through hole 410. The cover plate 400 is disposed on the tray 300 and is movably connected to the tray 300 to press the circuit board 700 on the tray 300 so that the test position 710 passes through the corresponding through hole 410.

[0043] Lifting assembly 500 is disposed on the support frame 210; and

[0044] The detection component 600 is driven by the lifting component 500 to raise and lower the detection component 600 so that the detection component 600 contacts the test position 710.

[0045] In the technical solution of this utility model, the testing device includes a base 100, on which a support frame 210 and a tray 300 are provided. The tray 300 is used to place a circuit board 700. A cover plate 400 is detachably installed above the tray 300. The cover plate 400 is installed on the tray 300 to press the circuit board 700 on the tray 300. The cover plate 400 is provided with a through hole 410 corresponding to the test position 710 of the circuit board 700. When the cover plate 400 is installed on the tray 300, the test position 710 is positioned in the through hole 410. A lifting assembly 500 is installed on the support frame 210. The lifting assembly 500 drives and connects to a detection assembly 600, and drives the detection assembly 600 to rise and fall. When it is necessary to test the continuity and insulation status of the circuit board 700, the lifting assembly 500... The detection component 600 is driven to descend, allowing it to pass through the through hole 410 and contact the test position 710 for testing and recording of results. After the test, the lifting component 500 drives the detection component 600 to rise and leave the test position 710. Since the cover plate 400 presses against the circuit board 700, the circuit board 700 can be prevented from moving during the test, thus avoiding affecting the test accuracy. It also prevents the circuit board 700 from moving due to friction when the detection component 600 rises, thus avoiding damage to the circuit board 700. Furthermore, it improves the accuracy of subsequent multiple measurements of the circuit board 700. In addition, the cover plate 400 is connected to the tray 300, so when the lifting component 500 drives the detection component 600 to move, the cover plate 400 will not move with it, thus also avoiding damage to the circuit board 700.

[0046] Specifically, this solution can be used for circuit boards 700 on high-speed trains, which are relatively large. Therefore, the detection component 600 can use probes with a large contact area to increase the contact area, make the contact more stable, and improve the accuracy of the test results. The lifting component 500 is configured to achieve linear movement, including but not limited to cylinders, hydraulic cylinders, or electric telescopic cylinders. Its output end drives the detection component 600 to lift and lower it. In this embodiment, the lifting component 500 uses a quick clamp. Please refer to... Figure 2The quick clamp includes a handle 530, a linkage mechanism 540, a drive rod 550, and a mounting base 560. The mounting base 560 is mounted on one side of the support frame 210. The two ends of the linkage mechanism 540 are hinged to the mounting base 560 and the drive rod 550, respectively, and the linkage mechanism is also hinged to the handle 530. The other end of the drive rod 550 is connected to the detection component 600. When the handle 530 is pressed down, the linkage mechanism 540 converts the rotational motion into linear motion. The drive rod 550 moves in a linear direction along with the action of the linkage mechanism 540, thereby driving the detection component 600 to move in a linear direction, thus realizing the lifting and lowering of the detection component 600. In use, the handle 530 can be manually pressed down or lifted, or it can be pressed down or lifted by a robotic arm.

[0047] In an embodiment of this utility model, the cover plate 400 has a notch 420 on its edge, and the testing device further includes a buckle 310. The buckle 310 is provided corresponding to the notch 420 and is rotatably connected to the tray 300 to have a first state and a second state. In the first state, the buckle 310 rotates into the notch 420 so that the cover plate 400 and the tray 300 can be separated. In the second state, the buckle 310 rotates to be misaligned with the notch 420 and cooperates with the tray 300 to press the cover plate 400.

[0048] Please refer to Figure 4 A snap fastener 310, which can rotate along the edge of the tray 300, is provided on the edge of the tray 300. The snap fastener 310 is rotatably connected to the tray 300 via a pivot, and due to the pivot, the snap fastener 310 is higher than the tray 300. A notch 420 is provided on the edge of the cover plate 400, and the notch 420 corresponds to the position of the snap fastener 310. The snap fastener 310 is higher than the notch 420. When the snap fastener 310 is rotated, the snap fastener 310 and the notch 420 are exactly aligned. At this time, the cover plate 400 can be moved upward, and the notch 420 passes through the snap fastener 310 without obstruction. This allows for the installation or removal of the cover plate 400. When it needs to be fixed, the cover plate 400 is placed on the tray 300, and the buckle 310 is rotated to misalign the buckle 310 with the notch 420. Then, the buckle 310 moves downward and engages with the tray 300 to press the cover plate 400, preventing the circuit board 700 from moving. In addition, when in the first state, since the cover plate 400 can be installed or moved away from the tray 300 at will, it is easy to replace the cover plate 400. Different cover plates 400 have different through holes 410 to accommodate different circuit boards 700.

[0049] In the embodiments of this utility model, multiple test positions 710, through holes 410 and detection components 600 are provided, and the through holes 410 and detection components 600 are provided in a one-to-one correspondence with the test positions 710.

[0050] Please refer to Figure 3 The circuit board 700 has multiple test positions 710, and the cover plate 400 has through holes 410 corresponding to the test positions 710. Multiple detection components 600 are also provided, corresponding to the circuit board 700 and the test positions 710, so that when the lifting component 500 drives the detection component 600 to descend, each detection component 600 can pass through the through hole 410 to contact the test position 710, and multiple test positions 710 can be tested simultaneously.

[0051] In an embodiment of this utility model, multiple lifting components 500 are provided, and each lifting component 500 is driven to connect to a mounting block 510. The mounting block 510 is provided with at least one detection component 600 on the side facing the tray 300.

[0052] Please refer to Figure 1 Multiple lifting components 500 are spaced apart along the length of the support frame 210. Each drive rod 550 is connected to a mounting block 510. Each mounting block 510 is equipped with at least one detection component 600. The multiple lifting components 500 drive the mounting block 510 and the detection component 600 to rise and fall. By setting multiple lifting components 500 and multiple mounting blocks 510, the pressure can be distributed, avoiding damage to the mounting block 510 due to the large gravity when multiple detection components 600 are installed on one mounting block 510, which would cause the detection component 600 to fall and damage the detection component 600 and the circuit board 700. In addition, the setting of multiple lifting components 500 allows for lifting and lowering with less force.

[0053] In an embodiment of this utility model, the testing device further includes a mounting frame 200, which is disposed on the base 100. The support frame 210 is disposed above the mounting frame 200, and the output end of the lifting component 500 passes downward through the mounting frame 200 and is connected to the mounting block 510.

[0054] Please refer to Figure 1 A mounting bracket 200 is set on the base 100, and a support bracket 210 is installed on the mounting bracket 200. The mounting block 510 is inside the mounting bracket 200. Multiple through holes are provided on the upper surface of the mounting bracket 200. Each drive rod 550 passes downward through the through hole and is connected to the mounting block 510, driving the mounting block 510 to rise and fall within the mounting bracket 200. The mounting bracket 200 covers the mounting block 510 and the detection component 600, which can also prevent dust and other particles from falling on the detection component 600 and affecting the measurement.

[0055] In an embodiment of this utility model, at least one guide post 520 is provided on the side of the mounting block 510 away from the tray 300, and at least one guide hole 201 is provided on the mounting frame 200. The guide post 520 is located in the guide hole 201 and slides in the guide hole 201 when the mounting block 510 is raised or lowered. The arrangement of the guide post 520 and the guide hole 201 makes the mounting block 510 more stable when it is raised or lowered, avoiding shaking during the raising and lowering process, which would prevent the detection component 600 from accurately corresponding to the test position 710 and affect the test accuracy. Specifically, two guide posts 520 can be symmetrically installed on the side of each mounting block 510 facing the lifting component 500 to avoid skewing.

[0056] In the embodiments of this utility model, please refer to Figure 3 The tray 300 is provided with a slot 301, and the circuit board 700 is placed in the slot 301. The slot 301 is provided to facilitate the positioning of the circuit board 700 and to place the circuit board 700 in the correct position so that the subsequent detection component 600 can descend to the corresponding test position 710 for testing.

[0057] In the embodiments of this utility model, please refer to Figure 1 The tray 300 is slidably disposed on the base 100. The tray 300 slides on the base 100 along a first direction. The first direction can be perpendicular to or parallel to the length direction of the support frame 210. In this embodiment, the first direction is perpendicular to the length direction of the support frame 210. When it is necessary to place the circuit board 700 on the tray 300, the tray 300 is slid away from the mounting frame 200, the circuit board 700 and the cover plate 400 are installed on the tray 300, and then the tray 300 is slid into the mounting frame 200. At this time, the lifting component 500 drives the detection component 600 to descend. The detection component 600 performs testing at the corresponding test position 710. After the test is completed, the tray 300 is slid out, the circuit board 700 is removed, and a new circuit board 700 to be tested is placed in it. In addition, a slider is provided below the tray 300, and a slide rail 120 is provided on the upper surface of the base 100 to facilitate the sliding of the tray 300 and also to guide the sliding of the tray 300.

[0058] In the embodiments of this utility model, please refer to Figure 3 A handle 320 is provided on one side of the tray 300. The handle 320 is located on the side of the tray 300 away from the mounting bracket 200, so that the tray 300 can be slid by pulling the handle 320 for easy leverage.

[0059] In an embodiment of this utility model, the testing device further includes an analyzer. A button 110 is provided on the base 100. The test frame has a control module inside. The control module, button 110, detection component 600 and the analyzer are communicatively connected. When the detection component 600 contacts the test position 710, by pressing the button 110 on the base 100, the detection component 600 collects the response signal of the circuit board 700 under test, including output signal and status signal, and transmits the collected signal to the analyzer for signal processing and analysis to obtain the test result. By testing the circuit board 700, it is ensured that the function and performance of the circuit board 700 meet the design requirements, thereby improving the reliability and stability of the circuit board 700.

[0060] The above description is merely an exemplary embodiment of the present utility model and does not limit the patent scope of the present utility model. Any equivalent structural transformations made based on the technical concept of the present utility model and the contents of the present utility model specification and drawings, or direct / indirect applications in other related technical fields, are included within the patent protection scope of the present utility model.

Claims

1. A testing device, characterized in that, include Base; A support frame is provided on the base; A tray, located on the base, is used to support a circuit board having protruding test positions. A cover plate with a through hole is disposed on the tray and movably connected to the tray to press the circuit board on the tray so that the test position passes through the corresponding through hole; A lifting assembly is provided on the support frame; as well as A detection component, wherein the lifting component is driven to connect to the detection component to drive the detection component to rise and fall so that the detection component contacts the test position.

2. The testing apparatus as described in claim 1, characterized in that, The cover plate has a notch on its edge. The testing device also includes a snap fastener, which is set to correspond to the notch and is rotatably connected to the tray to have a first state and a second state. In the first state, the snap fastener rotates into the notch so that the cover plate can be separated from the tray. In the second state, the snap fastener rotates to be misaligned with the notch and cooperates with the tray to press the cover plate.

3. The testing apparatus as described in claim 2, characterized in that, Multiple test positions, through holes, and detection components are provided, and each through hole and detection component corresponds to a test position.

4. The testing apparatus as described in claim 3, characterized in that, Multiple lifting components are provided, and each lifting component is connected to a corresponding mounting block. The mounting block has at least one detection component on the side facing the tray.

5. The testing apparatus as described in claim 4, characterized in that, The testing device also includes a mounting frame, which is mounted on the base. The support frame is mounted above the mounting frame, and the output end of the lifting component passes downward through the mounting frame and is connected to the mounting block.

6. The testing apparatus as described in claim 5, characterized in that, The mounting block has at least one guide post on the side away from the tray, and the mounting frame has at least one guide hole. The guide post is located in the guide hole and slides in the guide hole when the mounting block is raised or lowered.

7. The testing apparatus as described in claim 1, characterized in that, The tray has slots, and the circuit board is placed in the slots.

8. The testing apparatus as described in claim 1, characterized in that, The tray is slidably mounted on the base.

9. The testing apparatus as described in claim 8, characterized in that, A handle is provided on one side of the tray.

10. The testing apparatus as described in claim 9, characterized in that, The testing device also includes an analyzer, which is communicatively connected to the detection component.

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