PCB capacitance automatic detection equipment with shockproof base

Abstract

The utility model relates to electronic component production technical field especially PCB capacitance automatic detection equipment with shockproof pedestal, its technical scheme includes support, the top of support installs and elevates module, the outside of elevating module installs microscopic module, the top of support is provided with operation board, four groups of spring no.

Description

Technical Field

[0001] This utility model relates to the field of electronic component manufacturing technology, and in particular to an automatic PCB capacitance detection device with a shockproof base. Background Technology

[0002] In the field of electronic component manufacturing, capacitance testing of PCBs (printed circuit boards) is a key process to ensure their electrical performance. Among them, the initial screening and detection of capacitance defects on PCBs requires the assistance of specific microscopic equipment for observation.

[0003] Existing PCB capacitance microscopic inspection equipment mainly consists of a working board, a telescopic module, a microscopic module, and a display screen. Its working principle is as follows: the PCB to be inspected is placed on the working board, and the telescopic module is adjusted to move the microscopic module down closer to the PCB. The microscopic module is electrically connected to the display screen. At this time, the microscopic module will clearly display the capacitance value of the PCB on the display screen for easy observation by the staff.

[0004] In existing processes, rigid contact between the PCB board and the work board can easily cause damage to the board surface. Although adding a spring buffer device under the work board or changing the work board to an elastic material can alleviate the impact, excessive rebound force will be generated when the operator accidentally places the board with great force. This causes the equipment to wait for the spring vibration to decay before it can perform microscopic inspection, which affects the inspection efficiency and accuracy. Therefore, this application proposes an automatic PCB capacitance inspection device with a shockproof base. Utility Model Content

[0005] The purpose of this invention is to address the problem in the prior art that requires waiting for the vibration of traditional springs to decay, and to propose an automatic PCB capacitance detection device with a shockproof base.

[0006] The technical solution of this utility model is as follows: an automatic PCB capacitance detection device with a shockproof base, including a support, a lifting module installed at the top of the support, a microscopic module installed on the outside of the lifting module, a working plate set at the top of the support, four sets of springs fixedly connected between the bottom of the working plate and the support, a fixing block fixedly connected inside the support, a fixing rod fixedly connected at the top of the fixing block, a conical block fixedly connected at the top of the fixing rod, a top seat fixedly connected at the bottom of the working plate, a locking mechanism that cooperates with the conical block to restrict the movement of the working plate is set inside the top seat, and an unlocking component that cooperates with the locking mechanism is set around the fixing rod.

[0007] Optionally, the locking mechanism includes a triangular block, a mounting groove, a square rod, a second spring, and a baffle. The triangular block is disposed inside the top seat, the mounting groove is formed on the inner wall of the top seat, the square rod is disposed inside the mounting groove and is slidably connected to the inside of the top seat, the end of the square rod near the first conical block is fixedly connected to the triangular block, the two ends of the second spring are respectively connected to the triangular block and the mounting groove, and the baffle is fixedly connected to the end of the square rod away from the triangular block.

[0008] Optionally, the unlocking component includes a second conical block, which is slidably connected to the outside of the fixing rod and fits against the top of the fixing block.

[0009] Optionally, the locking mechanism is provided in pairs, with the pair of locking mechanisms symmetrically located on both sides of the top seat.

[0010] Optionally, a traction rope is fixed to one end of each pair of baffles facing away from each other, and the middle of the traction rope passes through the support.

[0011] Optionally, a pair of limiting plates are bolted to the top of the support, and a rubber pad is provided between the pair of limiting plates and the working plate. The rubber pad is glued to the bottom of the limiting plate.

[0012] Compared with the prior art, this application includes at least one of the following beneficial technical effects:

[0013] This invention utilizes a collaborative working mechanism between the spring and the locking mechanism. The top seat drives the locking mechanism to form a self-locking engagement with the conical block, limiting the reset stroke of the spring and effectively solving the problem of spring rebound vibration caused by forceful placement. This ensures that the microscopic module quickly enters a stable detection state while avoiding potential damage to the PCB board due to excessive rebound. Attached Figure Description

[0014] Figure 1 This is a schematic diagram of the overall structure of an automatic PCB capacitance testing device with a shockproof base.

[0015] Figure 2 This is a schematic cross-sectional view of the support and the working plate;

[0016] Figure 3 This is a schematic diagram of the top seat cross-section;

[0017] Figure 4 This is a schematic diagram of two cross-sections of the conical block;

[0018] Figure 5 This is a schematic diagram of the traction rope structure;

[0019] Figure 6 This is a schematic diagram of the limiting plate and rubber pad.

[0020] Reference numerals in the attached diagram: 1. Support; 2. Lifting module; 3. Microscopic module; 4. Working plate; 5. Spring 1; 6. Fixing block; 7. Fixing rod; 8. Conical block 1; 9. Top seat; 10. Triangular block; 11. Mounting groove; 12. Square rod; 13. Spring 2; 14. Baffle; 15. Conical block 2; 16. Traction rope; 17. Limiting plate; 18. Rubber pad. Detailed Implementation

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

[0022] Example 1

[0023] like Figures 1-4 As shown, the automatic PCB capacitance testing device with a shockproof base proposed in this utility model includes a support 1. A lifting module 2 is installed at the top of the support 1, and a microscopic module 3 is installed on the outside of the lifting module 2. A working plate 4 is provided at the top of the support 1, and four sets of springs 5 ​​are fixed between the bottom end of the working plate 4 and the support 1. The operator first places the PCB board on the working plate 4. When the PCB board contacts the working plate 4, the working plate 4 will be compressed and move downwards. The movement of the working plate 4 will compress the four sets of springs 5, causing the springs 5 ​​to deform, thereby reducing the impact force when the working plate 4 contacts the PCB board. After the staff removes the PCB board, the four sets of springs 5 ​​release their elastic potential energy, causing the working board 4 and the PCB board to rise and reset. At this time, the testing equipment can use the lifting module to move the microscopic module down to approach the PCB board, thereby detecting its capacitance, appearance, and data, which are then displayed on the screen. It should be noted that the lifting module, microscopic module, and display screen are all conventional and mature technologies in existing microscopic testing, and will not be elaborated on further. However, if the staff accidentally places the board with excessive force, it will generate excessive rebound force, causing the equipment to have to wait for the vibration of spring 5 to decay before performing microscopic testing, which affects the testing efficiency and accuracy.

[0024] In response to the above problems, such as Figure 2 , Figure 3 and Figure 4 As shown, this embodiment also includes a fixing block 6, a fixing rod 7, a conical block 8, a top seat 9, a locking mechanism, and an unlocking assembly, which will be described in detail below:

[0025] The fixing block 6 is fixed inside the support 1, the fixing rod 7 is fixed to the top of the fixing block 6, the conical block 8 is fixed to the top of the fixing rod 7, and the top seat 9 is fixed to the bottom of the working plate 4. When the operator places the PCB board on the surface of the working plate 4 with force, the working plate 4 will cause the top seat 9 to move downward a certain distance. The locking mechanism is set inside the top seat 9. The locking mechanism cooperates with the conical block 8 to restrict the movement of the working plate 4. At this time, the top seat 9 will cause the locking mechanism to contact the inclined surface of the conical block 8. When the locking mechanism passes the conical block 8 and the operator removes the PCB board, the working plate 4 will reset under the action of the spring 5, and the top seat 9 will reset synchronously. However, at this time, the locking mechanism will be limited by the bottom of the conical block 8 and cannot reset, thereby shortening the reset distance of the working plate 4, thereby reducing the vibration generated by the spring 5 during reset, thus accelerating the vibration attenuation of the spring 5 and improving the efficiency during testing.

[0026] Among them, such as Figure 3 As shown, the unlocking component is located around the fixed rod 7. The unlocking component works with the locking mechanism to end the restriction on the working plate 4. When the PCB board is removed, the operator can press the working plate 4 to continue to move it down. At this time, the top seat 9 will drive the locking mechanism to contact the unlocking component. Subsequently, during the process of the top seat 9 moving up and resetting, the cone block 8 will not be able to block the locking mechanism, thereby ensuring that the working plate 4 is reset to the initial position.

[0027] In addition, such as Figure 3 and Figure 4 As shown, the locking mechanism includes a triangular block 10, a mounting groove 11, a square rod 12, a spring 13, and a baffle 14. The triangular block 10 is disposed inside the top seat 9. The mounting groove 11 is formed on the inner wall of the top seat 9. The square rod 12 is disposed inside the mounting groove 11 and is slidably connected to the inside of the top seat 9. When the top seat 9 moves down, it will drive the triangular block 10 and the square rod 12 down. When the triangular block 10 moves down, it will contact the inclined surface of the cone block 8. When the triangular block 10 is subjected to force, it will move towards the square rod 12. The square rod 12 is close to the cone block 8. One end of the cone block 8 is fixed to the triangular block 10. The movement of the triangular block 10 drives the square rod 12 to move. The two ends of the spring 13 are respectively connected to the triangular block 10 and the mounting groove 11. The baffle 14 is fixed to the end of the square rod 12 away from the triangular block 10. When the square rod 12 moves, it will squeeze the spring 13, causing the spring 13 to deform and generate elastic potential energy. At this time, the triangular block 10 passes over the cone block 8. When the top seat 9 moves up and resets, the cone block 8 will block the reset path of the support 1, thereby limiting the rise of the working plate 4.

[0028] Furthermore, such as Figure 3 and Figure 4As shown, the unlocking component includes a second conical block 15, which is slidably connected to the outside of the fixed rod 7 and fits against the top of the fixed block 6. When the top seat 9 needs to be unlocked, it is only necessary to continue to move the top seat 9 down. At this time, the triangular block 10 will contact the inclined surface of the second conical block 15. When the triangular block 10 rises, it will drive the second conical block 15 to move up. At this time, the second conical block 15 and the first conical block 8 will fit together to form a "rhombus". At the moment the triangular block 10 moves up, it will avoid contacting the bottom of the first conical block 8. The first conical block 8 will then stop blocking the triangular block 10, thus ensuring the normal reset of the top seat 9 and the working plate 4.

[0029] Furthermore, such as Figure 3 As shown, the locking mechanism is provided in pairs, with the pair of locking mechanisms symmetrically located on both sides of the top seat 9. If one set of locking mechanisms malfunctions, the other set can be used instead, without affecting the normal operation of the equipment.

[0030] In addition, such as Figure 1 and Figure 5 As shown, a traction rope 16 is fixed to one end of a pair of baffles 14 facing away from each other. The middle of the traction rope 16 passes through the support 1. The traction rope 16 can also be pulled to move the triangular block 10 laterally and disengage from the conical block 8, thus providing two unlocking functions.

[0031] Example 2

[0032] like Figure 6 As shown, based on Embodiment 1, a pair of limiting plates 17 are bolted to the top of the support 1. A rubber pad 18 is provided between the pair of limiting plates 17 and the working plate 4. The rubber pad 18 is glued to the bottom of the limiting plate 17. When the working plate 4 is reset, it can be blocked by the limiting plate 17, thereby avoiding the working plate 4 from resetting too much. In addition, the setting of the rubber pad 18 can reduce the impact force between the working plate 4 and the limiting plate 17, and play a buffering role.

[0033] In this embodiment, when the worker forcefully places the PCB board on the surface of the work board 4, the work board 4 will cause the top seat 9 to move downward by a certain distance. At this time, the top seat 9 will cause the locking mechanism to contact the inclined surface of the conical block 8. When the locking mechanism passes the conical block 8 and the worker leaves the PCB board, the work board 4 will reset under the action of the spring 5, and the top seat 9 will reset synchronously. However, at this time, the locking mechanism will be limited by the bottom end of the conical block 8 and cannot reset.

[0034] When removing the PCB board, the worker can press the work plate 4 to continue moving downwards. At this time, the top seat 9 will drive the locking mechanism to contact the unlocking component. Subsequently, during the process of the top seat 9 moving upwards to reset, the cone block 8 will not be able to block the locking mechanism, thus ensuring that the work plate 4 is reset to the initial position.

[0035] When the top seat 9 moves down, it will cause the triangular block 10 and the square rod 12 to move down. The triangular block 10 will contact the inclined surface of the cone block 8. The force on the triangular block 10 will cause it to move towards the square rod 12. The movement of the triangular block 10 will then cause the square rod 12 to move. The movement of the square rod 12 will compress the spring 13, causing the spring 13 to deform and generate elastic potential energy. At this time, the triangular block 10 will pass over the cone block 8. When the top seat 9 moves up to reset, the cone block 8 will block the reset path of the support 1, thereby limiting the rise of the working plate 4.

[0036] When the top seat 9 needs to be unlocked, simply continue to move the top seat 9 down. At this time, the triangular block 10 will contact the inclined surface of the second conical block 15. When the triangular block 10 rises, it will drive the second conical block 15 to move upward. At this time, the second conical block 15 and the first conical block 8 will fit together to form a "rhombus". At the moment the triangular block 10 moves upward, it will avoid contacting the bottom end of the first conical block 8. The first conical block 8 will then stop blocking the triangular block 10, thus ensuring the normal reset of the top seat 9 and the working plate 4.

[0037] The above specific embodiments are merely several optional embodiments of this utility model. Based on the technical solution of this utility model and the relevant teachings of the above embodiments, those skilled in the art can make various alternative improvements and combinations to the above specific embodiments.

Claims

1. An automatic PCB capacitance testing device with a shockproof base, comprising a support (1), a lifting module (2) installed at the top of the support (1), a microscopic module (3) installed on the outside of the lifting module (2), a working plate (4) provided at the top of the support (1), and four sets of springs (5) fixedly connected between the bottom end of the working plate (4) and the support (1), characterized in that: A fixing block (6) is fixed inside the support (1), a fixing rod (7) is fixed at the top of the fixing block (6), a conical block (8) is fixed at the top of the fixing rod (7), a top seat (9) is fixed at the bottom of the working plate (4), a locking mechanism that cooperates with the conical block (8) to restrict the movement of the working plate (4) is provided inside the top seat (9), and an unlocking component that cooperates with the locking mechanism is provided on the periphery of the fixing rod (7).

2. The automatic PCB capacitance detection device with a shockproof base according to claim 1, characterized in that, The locking mechanism includes a triangular block (10), a mounting groove (11), a square rod (12), a second spring (13), and a baffle (14). The triangular block (10) is located inside the top seat (9). The mounting groove (11) is located on the inner wall of the top seat (9). The square rod (12) is located inside the mounting groove (11) and is slidably connected to the inside of the top seat (9). The end of the square rod (12) near the first conical block (8) is fixedly connected to the triangular block (10). The two ends of the second spring (13) are respectively connected to the triangular block (10) and the mounting groove (11). The baffle (14) is fixedly connected to the end of the square rod (12) away from the triangular block (10).

3. The automatic PCB capacitance detection device with a shockproof base according to claim 1, characterized in that, The unlocking component includes a second conical block (15), which is slidably connected to the outside of the fixed rod (7) and fits against the top of the fixed block (6).

4. The automatic PCB capacitance detection device with a shockproof base according to claim 1, characterized in that, The locking mechanism is provided in pairs, and the pair of locking mechanisms are symmetrically located on both sides of the top seat (9).

5. The automatic PCB capacitance detection device with a shockproof base according to claim 2, characterized in that, A traction rope (16) is fixed to one end of each pair of baffles (14) facing away from each other, and the middle of the traction rope (16) passes through the support (1).

6. The automatic PCB capacitance detection device with a shockproof base according to claim 1, characterized in that, The top of the support (1) is bolted to a pair of limiting plates (17), and a rubber pad (18) is provided between the pair of limiting plates (17) and the working plate (4). The rubber pad (18) is glued to the bottom of the limiting plate (17).

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