An inductance testing machine and testing method for circuit board inductors.

Abstract

This invention relates to the field of inductor component testing, specifically disclosing an inductor testing machine and method for circuit board inductors. It solves the problems of existing circuit board inductor testing methods, such as the inability to stably clamp inductors, leading to errors and low testing efficiency. The proposed solution includes a testing stage, an inductor component analysis and testing module, testing probes, an adjustment component, a limit slider, a mounting base, a connecting base, a slide bar, a chuck, a ramp, a triangular pull rod, a variable frequency motor, a ring stage, a lever, a telescopic component, a mounting frame, a linkage component, and a groove. A roller guide rail is slidably arranged within the groove. A driving component is provided on the mounting frame to drive the roller guide rail upwards and tilts, thus unloading the tested circuit board. This equipment and method can accurately and efficiently test and analyze inductors on circuit boards, and it has strong versatility, adapting to circuit boards of various sizes and models.

Description

Technical Field

[0001] This invention relates to the field of inductor testing, and in particular to an inductor testing machine and method for circuit board inductors. Background Technology

[0002] A circuit board, also known as a printed circuit board, is a core component that provides mechanical assembly support and electrical connections for components in various electronic systems. It also carries the core functions of signal transmission, signal reception, and power supply for electronic devices. The working principle of a circuit board is to use the insulating material on the board base to isolate the conductive copper foil layer on the surface, allowing current to flow along pre-designed paths through various components, thereby achieving functions such as signal transmission, amplification, attenuation, modulation, demodulation, and encoding.

[0003] Inductors on a circuit board are components that convert electrical energy into magnetic energy and store it. When current flows through a coil, a magnetic field is generated around it. The changing current produces a changing magnetic field, which in turn induces an electromotive force within the coil itself, opposing the change in current, much like an "inertial element" of the current. Therefore, during the production, manufacturing, and development of circuit boards, it is necessary to test the various inductors that are planned and connected on the circuit board to check their performance.

[0004] However, existing circuit board inductor testing machines generally cannot achieve intelligent clamping and stabilization of the circuit board to ensure its stability during probe testing of inductors and thus guarantee testing accuracy. Furthermore, they lack universal clamping and stabilization capabilities when testing different circuit boards, and manual removal of the tested circuit board is required after testing, resulting in low testing efficiency. Therefore, this paper proposes an inductor testing machine and method for circuit board inductors. Summary of the Invention

[0005] To overcome the shortcomings of existing technologies, this invention proposes an inductor testing machine and method for circuit board inductor components, which solves the problems of non-uniform and stable clamping of inductor components on existing circuit boards, easy error in testing, and low testing efficiency.

[0006] To solve the above-mentioned technical problems, the basic technical solution proposed by this invention is as follows:

[0007] An inductance testing machine for circuit board inductors includes a testing platform, an inductor analysis and testing module mounted on the upper end of the testing platform, a pair of testing probes on the upper inner wall of the testing platform, an adjustment component for adjusting the position and angle of the testing probes on the testing platform, a plurality of limiting sliders arranged in an array through the testing platform, a mounting base connected to the upper end of the limiting slider, a connecting base provided on each mounting base, and a slide bar slidably sleeved in the connecting base, a pawl rotatably connected to the upper end of the slide bar via a spring hinge, an inclined plate cooperating with the pawl for limiting the movement on the connecting base, and a triangular pull rod connected to the lower end of the slide bar;

[0008] A variable frequency motor is installed at the lower end of the testing platform, and a ring platform is installed at the lower output end of the variable frequency motor. The outer side of the ring platform is arranged with levers that slide and abut against the triangular pull rod. A telescopic component two is installed at the bottom of the testing platform, and a mounting frame is connected to the upper output end of the telescopic component two. A linkage component is provided on the testing platform. The linkage component is used to drive the limit sliders to slide together when the mounting frame slides down. A groove is opened at the upper end of the testing platform, and a roller guide rail is slidably arranged in the groove. A drive component is provided on the mounting frame. The drive component is used to drive the roller guide rail to move upward and tilt to unload the tested circuit board.

[0009] Preferably, the upper surface of the testing platform is provided with multiple limiting grooves, and each limiting groove is arranged in a circumferential array around the center of the testing platform. Each limiting slider slides in the limiting groove on its own side, and the upper and lower ends of the limiting slider extend through the limiting groove to the upper and lower sides of the testing platform, respectively. The mounting base is connected to the extension end of the limiting slider on the upper side of the testing platform. The lower ends of the connecting base and the slide bar extend through the limiting groove to the lower side of the testing platform. The lower extension end of the connecting base is connected to slide rods arranged on both sides of the slide bar. The lower extension end of the slide bar is connected to sleeve blocks that slide with the slide rods, and a spring sleeved on the outside of the slide rod is connected between the sleeve blocks and the lower end of the slide rod.

[0010] Preferably, the connecting seats on the front and rear sides are connected to the mounting base, and the mounting bases on the left and right sides are slidably fitted with slide rod frames, and the slide rod frames are rotatably fitted with screws. The connecting seats on the left and right sides are connected to the slide rod frames on the side of the mounting base near the center of the testing table. The screws are threaded in the mounting base and pass through the mounting base and are rotatably connected to the connecting seats through bearings.

[0011] Preferably, each of the connecting seats is vertically provided with a slide rail, the two sides of the slide bar are limited and slidably connected in the slide rail, and the inclined plate is connected to the upper end of the connecting seat and tilted away from the center of the detection table.

[0012] Preferably, the outer surface of the ring platform is connected to a threaded cylinder array, and one end of each lever is threadedly sleeved inside the threaded cylinder, while the other end extends to the outside of the threaded cylinder and slides against the triangular pull rod.

[0013] Preferably, the adjustment assembly includes an x-axis guide rail, a y-axis guide rail, a guide block, a telescopic component one, an electric steering seat one, an electric steering seat two, and push rod motors. The x-axis guide rail is installed on the upper inner wall of the testing table. The y-axis guide rail is arranged perpendicular to the x-axis guide rail and is slidably connected to the x-axis guide rail. The guide block is slidably connected inside the y-axis guide rail. The telescopic component one is installed at the lower end of the guide block and extends below the y-axis guide rail. The electric steering seat one is installed at the lower output end of the telescopic component. The electric steering seat two is installed at the lower output end of the electric steering seat two. Two push rod motors are provided and installed on both sides of the lower output end of the electric steering seat two. The upper ends of the detection probes on both sides are connected to the output ends of the push rod motors on both sides.

[0014] Preferably, the linkage assembly includes a vertical plate, a guide rod, and a slide. The vertical plate is connected to the extension end of each limiting slider on the lower side of the detection table. The guide rod is arrayed and connected to the bottom of the detection table. The slide is slidably sleeved on the outer side of each guide rod and sleeved on the outer side of the telescopic member, and is located on the lower side of the mounting frame and abuts against the lower end face of the mounting frame. The slide and the bottom of the detection table are also connected by a spring that is sleeved on the outer side of the guide rod. A rotating plate is rotatably connected between the slide and each vertical plate.

[0015] Preferably, the drive assembly includes a second guide rod, a front slide plate, a rear slide plate, a short connecting rod, a long sliding rod, a top frame, a limiting inclined block, and a limiting plate. The second guide rod is connected to the lower end face of the testing platform and is located on the front and rear sides of the lower end of the testing platform. The front slide plate is slidably fitted on the outside of the front guide rod, and the rear slide plate is slidably fitted on the outside of the rear guide rod. The short connecting rod is connected to the upper sides of the front slide plate, and the long sliding rod is connected to the upper sides of the rear slide plate. The front and rear ends of the roller guide rail extend to the front and rear outer sides of the testing platform, respectively. The upper end of the short connecting rod is rotatably connected to the lower front end of the roller guide rail, and the upper end of the long sliding rod is slidably engaged with the lower rear end of the roller guide rail. The top frame is rotatably connected to both sides of the mounting frame via a spring hinge. The mounting frame is also connected to a limiting inclined block located on the lower rear end of the top frame and engaging with the lower side of the top frame for limitation. The limiting plate is connected to the front side of the lower end of the testing platform, and the lower end of the top frame is slidably engaged with the limiting plate.

[0016] Preferably, a slide frame is connected to the lower rear end of the roller guide rail, the upper end of the long slide rod slides against the inner wall of the slide frame, and a collection frame is placed on the front side of the detection table.

[0017] A method for testing the inductance of an inductor component on a circuit board includes the following steps:

[0018] Step 1: Place the circuit board on the roller guide rail of the testing table and between the various connecting seats. Then, the telescopic component retracts, causing the mounting frame to slide down. The linkage component drives the various connecting seats to move closer together, centering and limiting the sides of the circuit board.

[0019] Step 2: As the telescopic component 2 retracts, the mounting frame will continue to move downwards. After each connecting seat centers and limits the circuit board, the frequency converter motor is started, which in turn drives each lever to rotate. Through the sliding contact between the lever and the triangular pull rod, the slide bar is pulled to slide downwards within the connecting seat.

[0020] Step 3: As the slider slides down, the claw connected to its upper end via the spring hinge will gradually move from contact with the inclined plate to contact with the vertical connecting seat. This allows the claw to overcome the spring hinge from the inclined state and rotate to the vertical state. As it continues to move down, the claw will lock onto the upper edge of each circuit board to securely lock the circuit board in place.

[0021] Step 4: Adjust the position of the detection probes on both sides by adjusting the components, so that the detection probes can move flexibly in the horizontal and vertical directions. At the same time, the detection probes can also be deflected appropriately during adjustment to move to different positions and deflect at different angles, so as to test the inductor components on the circuit board. The detected data is then analyzed by the inductor component analysis and testing module.

[0022] Step 5: After the test is completed, extend the telescopic component to remove the clamps from the upper edge of the circuit board and the clamps from each connector to each side of the circuit board. Then, by continuing to extend the telescopic component, the mounting frame and the drive components set on it will run, pushing the circuit board out from the top of the testing table and allowing it to slide down, thus completing the unloading.

[0023] The beneficial effects of this invention are:

[0024] 1. The technical solution of this invention involves placing the circuit board between various mounting seats and connecting seats, then initiating the retraction of the telescopic component two, which causes the mounting frame to move downward. This downward movement of the mounting frame presses down the slide, and the rotating plate pulls the various limiting sliders, mounting seats, and connecting seats closer together, achieving stable clamping of the circuit board on various sides. After the connecting seats move closer together and clamp the circuit board, the variable frequency motor can be driven to rotate the ring platform and lever. Through the sliding contact between the lever and the triangular pull rod, the slide bar is pulled downward. This causes the claws, which are connected by spring hinges at the upper end of the slide bar, to gradually move downward from the inclined limit of the inclined plate to the vertical limit of the connecting seat. As the claws in the vertical state continue to move downward, they can also clamp the side edge of the upper surface of the circuit board, further stabilizing the clamping of the circuit board. This ensures that the detection probe can accurately locate each inductor on the circuit board, obtain accurate test data, and finally, the inductor analysis and testing module analyzes the data to obtain more accurate results.

[0025] 2. The technical solution of the present invention is that the left and right mounting seats are not directly connected to the connecting seats, but the left and right connecting seats are connected to the slides, and the slides slide on the mounting seats. At the same time, the slides are rotatably fitted with screws, and one end of the screws is rotatably connected to the connecting seats. The screws are threaded into the mounting seats. In this way, the distance between the left and right connecting seats can be adjusted by rotating the screws. When centering and limiting circuit boards of different sizes, the ratio of the distance between the left and right connecting seats to the distance between the front and rear connecting seats can be adjusted to achieve universal clamping and improve the versatility of the device.

[0026] 3. The technical solution of this invention moves the mounting frame upward by the upward movement of the telescopic component two. This causes the top frame, which is rotatably connected to both sides of the mounting frame by spring hinges and is in contact with the limiting inclined block, to move upward. During this process, the top frame will simultaneously lift the front and rear slide plates by its raised front end and tilted rear end until the raised front end of the top frame contacts the limiting plate. Then, the top frame can overcome the elasticity of the spring hinge and rotate, so that the raised front end of the top frame stops moving upward, while the rear end continues to move upward under the rotation of the top frame. At this time, the upward movement of only the rear end of the top frame will push the rear end of the roller guide rail to rotate around the rotational connection between the front end of the roller guide rail and the short connecting rod as the center through the long sliding rod. This causes the rear end of the roller guide rail to rotate upward and tilt, so that the circuit board supported on it is guided to slide down from the front end of the testing table for unloading, thereby realizing automated unloading and improving testing efficiency. Attached Figure Description

[0027] Figure 1 This is a schematic diagram of the structure of the present invention;

[0028] Figure 2 This is a schematic diagram of the rear view structure of the present invention;

[0029] Figure 3 This is a schematic diagram of the lower structure of the testing stage of the present invention;

[0030] Figure 4 This is a bottom view of the underside structure of the testing platform of the present invention;

[0031] Figure 5 This is a side sectional view of the underside structure of the testing platform of the present invention;

[0032] Figure 6 This is a top sectional view of the following structure at the threaded cylinder of the present invention;

[0033] Figure 7 This is a schematic diagram of the internal structure of the detection platform of the present invention;

[0034] Figure 8 This is a schematic diagram of the structure of the linkage component of the present invention;

[0035] Figure 9 This is a schematic diagram of the relevant structures on the left and right mounting bases and connecting bases of the present invention;

[0036] Figure 10 This is a side view of the relevant structures on the left and right mounting bases and connecting bases of the present invention;

[0037] Figure 11 This is a schematic diagram of the structure of the driving component of the present invention;

[0038] Figure 12 This is a schematic diagram of the structure of the adjustment component of the present invention.

[0039] Explanation of reference numerals in the attached figures:

[0040] 1. Testing platform; 2. Inductor component analysis and testing module; 3. X-axis guide rail; 4. Y-axis guide rail; 5. Guide block; 6. Telescopic component one; 7. Electric steering seat one; 8. Electric steering seat two; 9. Push rod motor; 10. Testing probe; 11. Limiting slide groove; 12. Limiting slider; 13. Vertical plate; 14. Mounting base; 15. Connecting base; 16. Slide rail; 17. Slide bar; 18. Claw; 19. Inclined plate; 20. Slide rod; 21. Spring one; 22. Triangular tie rod; 23. Variable frequency motor 24. Ring platform; 25. Threaded cylinder; 26. Lever; 27. Guide rod one; 28. Slide; 29. ​​Sleeve block; 30. Spring two; 31. Turning plate; 32. Telescopic component two; 33. Mounting frame; 34. Guide rod two; 35. Front slide plate; 36. Rear slide plate; 37. Groove; 38. Short connecting rod; 39. Roller guide rail; 40. Slide frame; 41. Long slide rod; 42. Top frame; 43. Limiting inclined block; 44. Limiting plate; 45. Screw; 46. Slide rod frame; 47. Collection frame. Detailed Implementation

[0041] The following will be combined with the appendix Figure 1 To be continued Figure 12 The technical solutions in the embodiments of the present invention have been clearly and completely described. Obviously, the described embodiments are only a part of the embodiments of the present invention, and not all of them. Based on the embodiments of the present invention, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the scope of protection of the present invention.

[0042] Example 1:

[0043] like Figures 1-12 As shown, this invention discloses an inductance testing machine for circuit board inductance components, including a testing platform 1, an inductance component analysis and testing module 2 installed on the upper end of the testing platform 1, a pair of testing probes 10 also provided on the upper inner wall of the testing platform 1, and an adjustment component for adjusting the position and angle of the testing probes 10 provided on the testing platform 1. The invention is characterized in that multiple limiting sliders 12 are slidably arranged in an array through the testing platform 1, the upper end of the limiting sliders 12 is connected to a mounting base 14, each mounting base 14 is provided with a connecting base 15, and a slide bar 17 is slidably sleeved in the connecting base 15. The upper end of the slide bar 17 is rotatably connected to a claw 18 through a spring hinge, and an inclined plate 19 that cooperates with the claw 18 for limiting is also connected to the connecting base 15. The lower end of the slide bar 17 is connected to a triangular pull rod 22.

[0044] Among them, the inductor component analysis and testing module 2 is an existing data analysis device that can test and analyze each inductor component on the circuit board, so as to realize the acquisition of the operating status data of the inductor components on the circuit board through the two detection probes 10.

[0045] A variable frequency motor 23 is installed at the lower end of the testing table 1, and a ring platform 24 is installed at the lower output end of the variable frequency motor 23. The outer side of the ring platform 24 is arranged with levers 26 that slide and abut against the triangular pull rod 22. A telescopic component 32 is installed at the bottom of the testing table 1, and a mounting frame 33 is connected to the upper output end of the telescopic component 32. A linkage component is provided on the testing table 1. The linkage component is used to drive the limit sliders 12 to slide together when the mounting frame 33 slides down. A groove 37 is opened at the upper end of the testing table 1, and a roller guide rail 39 is slidably arranged in the groove 37. A drive component is provided on the mounting frame 33. The drive component is used to drive the roller guide rail 39 to move upward and tilt so as to unload the tested circuit board.

[0046] Multiple limiting grooves 11 are provided through the upper surface of the testing table 1, and each limiting groove 11 is arranged in a circumferential array around the center of the testing table 1. Each limiting slider 12 slides in the limiting groove 11 on its own side, and the upper and lower ends of the limiting slider 12 extend through the limiting groove 11 to the upper and lower sides of the testing table 1, respectively. The mounting base 14 is connected to the extension end of the limiting slider 12 on the upper side of the testing table 1. The lower ends of the connecting base 15 and the slider 17 both extend through the limiting groove 11 to the lower side of the testing table 1. The lower extension end of the connecting base 15 is connected to the slider rod 20 arranged on both sides of the slider 17. The lower extension end of the slider 17 is connected to the sleeve block 29 that slides with the slider rod 20. A spring 21 sleeved on the outside of the slider rod 20 is connected between the sleeve block 29 and the lower end of the slider rod 20.

[0047] The opening of the limiting groove 11 allows the limiting slider 12 to slide stably within it. By penetrating the limiting groove 11, it extends to the upper and lower sides of the detection table 1. The sliding sleeve 29 and the sliding rod 20 can stabilize the sliding of the slider 17. Under the action of the spring 21, the sleeve 29 and the slider 17 can slide upward, so that the pawl 18, which is rotatably connected to the upper end of the slider 17 through the spring hinge, can move to the top of the connecting seat 15 and make inclined contact with the inclined plate 19 connected to the upper end of the connecting seat 15. Under the action of external force, when the slider 17 slides downward, the pawl 18 will move downward, canceling the inclined limit with the inclined plate 19 and making vertical contact limit with the connecting seat 15.

[0048] The connecting seats 15 on the front and rear sides are connected to the mounting seats 14. The sliding rod brackets 46 are slidably sleeved through the mounting seats 14 on the left and right sides, and the screws 45 are rotatably sleeved on the sliding rod brackets 46. The connecting seats 15 on the left and right sides are connected to the sliding rod brackets 46 on the side of the mounting seat 14 near the center of the testing table 1. The screws 45 are threaded in the mounting seat 14 and pass through the mounting seat 14 and are rotatably connected to the connecting seats 15 through bearings.

[0049] This allows the spacing between the left and right connecting seats 15 to be adjustable. In practical use, when the size of the circuit board that needs to be stabilized and limited is different, the screws 45 threaded on the left and right connecting seats 15 can be rotated to drive the two connecting seats 15 to move closer to each other. This allows for the adjustment of the ratio between the spacing between the left and right connecting seats 15 and the spacing between the front and rear connecting seats 15, so that circuit boards of different sizes can be universally centered and stabilized.

[0050] Each connecting seat 15 is vertically provided with a slide rail 16, and the two sides of the slide bar 17 are limited and slidably connected in the slide rail 16. The inclined plate 19 is connected to the upper end of the connecting seat 15 and tilts away from the center of the detection table 1.

[0051] The slide rail 16 on the connector 15 ensures the stable sliding of the slider 17 within it. The inclined plate 19 tilts away from the center of the test stage 1, allowing the claw 18 to also tilt away from the center of the test stage 1 when it is stopped by the spring hinge. As the slider 17 pulls the claw 18 to slide down, the claw 18 can gradually tilt to a vertical position and engage with the edge of the circuit board between the connectors 15. This allows the circuit board to be centered and stopped by the connectors 15, and the claw 18 can further engage the edge of the circuit board, ensuring the stability of the circuit board and the accuracy of the positioning test of the inductor connected to it by the test probe 10.

[0052] The outer surface of the ring platform 24 is connected with a threaded cylinder 25. One end of each lever 26 is threaded inside the threaded cylinder 25, while the other end extends to the outside of the threaded cylinder 25 and slides against the triangular pull rod 22.

[0053] The ring platform 24 is connected by an array of threaded cylinders 25, and one end of the threaded cylinder 25 is threadedly sleeved with the lever 26. After the distance between the connecting seats 15 on the left and right sides is adjusted by rotating the screw 45, the lever 26 can be rotated to extend or slide into the threaded cylinder 25, so as to adjust the length of the lever 26 at the outer extension end of the threaded cylinder 25, so that the lever 26 can effectively and stably slide and contact the triangular pull rod 22.

[0054] Example 2:

[0055] like Figures 1-12 As shown, the present invention discloses an inductance testing machine for circuit board inductance components. Compared with Embodiment 1, this embodiment discloses the structure of the adjustment component.

[0056] The adjustment assembly includes an x-axis guide rail 3, a y-axis guide rail 4, a guide block 5, a telescopic component 6, an electric steering seat 7, an electric steering seat 8, and a push rod motor 9. The x-axis guide rail 3 is installed on the upper inner wall of the testing table 1. The y-axis guide rail 4 is arranged perpendicular to the x-axis guide rail 3 and is slidably connected to the x-axis guide rail 3. The guide block 5 is slidably connected inside the y-axis guide rail 4. The telescopic component 6 is installed at the lower end of the guide block 5 and extends below the y-axis guide rail 4. The electric steering seat 7 is installed at the lower output end of the telescopic component 6. The electric steering seat 8 is installed at the lower output end of the electric steering seat 7. There are two push rod motors 9, which are installed on both sides of the lower output end of the electric steering seat 8. The upper ends of the detection probes 10 on both sides are connected to the output ends of the push rod motors 9 on both sides.

[0057] This allows the left and right positions of the y-axis guide rail 4 to be adjusted via the x-axis guide rail 3, and the front and rear positions of the guide block 5 to be adjusted via the y-axis guide rail 4. This enables the guide block 5 and the telescopic component 6 to be adjusted to any position in the horizontal direction. The detection probe 10 can also be height adjusted via the telescopic component 6. Furthermore, through the cooperation of the electric steering seat 7 and the electric steering seat 8, the detection probe 10 can be rotated and deflected at an angle to test inductors at different positions on the circuit board. The deflection of the detection probe 10 can also test multiple inductors that are obstructed in the vertical direction.

[0058] Example 3:

[0059] like Figures 1-12 As shown, this invention discloses an inductance testing machine for circuit board inductance components. Compared with Embodiment 2, this embodiment discloses the structure of the linkage component.

[0060] The linkage assembly includes a vertical plate 13, a guide rod 27, and a slide 28. The vertical plate 13 is connected to the extension end of each limiting slider 12 on the lower side of the detection table 1. The guide rod 27 is arrayed and connected to the bottom of the detection table 1. The slide 28 is slidably sleeved on the outer side of each guide rod 27, and the slide 28 is sleeved on the outer side of the telescopic component 32, and is located on the lower side of the mounting frame 33, abutting against the lower end face of the mounting frame 33. The slide 28 and the bottom of the detection table 1 are also connected by a spring 30 sleeved on the outer side of the guide rod 27. A rotating plate 31 is rotatably connected between the slide 28 and each vertical plate 13.

[0061] When the telescopic component 32 retracts and moves the mounting frame 33 downward, it can resist the slide 28 located under the mounting 33 and move downward. Then, by pulling the rotating plate 31 to rotate, it can drive the vertical plates 13, the limiting slider 12, the mounting base 14 and the connecting base 15 to move closer to each other, and center and limit the sides of the circuit board.

[0062] Example 4:

[0063] like Figures 1-12 As shown, the present invention discloses an inductor testing machine for circuit board inductor components. Compared with Embodiment 3, this embodiment discloses the structure of the driving component.

[0064] The drive assembly includes guide rod 34, front slide plate 35, rear slide plate 36, short connecting rod 38, long sliding rod 41, top frame 42, limiting inclined block 43, and limiting plate 44. Guide rod 34 is connected to the lower end face of the detection table 1 and is located on the front and rear sides of the lower end of the detection table 1. The front slide plate 35 is slidably sleeved on the outside of the front guide rod 34, and the rear slide plate 36 is slidably sleeved on the outside of the rear guide rod 34. Short connecting rod 38 is connected to the upper sides of the front slide plate 35, and long sliding rod 41 is connected to the upper sides of the rear slide plate 36. Roller guide rail 3 The front and rear ends of the 9 extend to the front and rear outer sides of the testing table 1, respectively. The upper end of the short connecting rod 38 is rotatably connected to the lower front end of the roller guide rail 39. The upper end of the long sliding rod 41 slides and abuts against the lower rear end of the roller guide rail 39. The top frame 42 is rotatably connected to both sides of the mounting frame 33 through a spring hinge. The mounting frame 33 is also connected to a limiting inclined block 43 located on the lower rear end of the top frame 42 and abutting against the lower side of the top frame 42. The limiting plate 44 is connected to the lower front side of the testing table 1. The lower end of the top frame 42 slides and abuts against the limiting plate 44.

[0065] The lower rear end of the roller guide rail 39 is connected to the slide frame 40, and the upper end of the long slide rod 41 slides against the inner wall of the slide frame 40. A collection frame 47 is also placed on the front side of the detection table 1.

[0066] After the circuit board test is completed, the upward movement of the telescopic component 32 causes the mounting frame 33 to move upward. This causes the top frame 42, which is rotatably connected to both sides of the mounting frame 33 via spring hinges and is limited by the limiting inclined block 43, to move upward. During this process, the top frame 42 will simultaneously lift the front slide plate 35 and the rear slide plate 36 through its raised front end and inclined downward rear end. The front slide plate 35 and the rear slide plate 36 can then move upward stably along their respective sliding guide rods 34 until the raised front end of the top frame 42 contacts the limiting plate 44. After this, the top frame 42 can... Overcoming the elasticity of the spring hinge, the top frame 42 rotates, causing the raised front end to stop moving upwards, while the rear end continues to move upwards under the rotation of the top frame 42. At this time, the upward movement of only the rear end of the top frame 42 will push the rear end of the roller guide rail 39 to rotate around the rotational connection between the front end of the roller guide rail 39 and the short connecting rod 38 through the long slide rod 41. This causes the rear end of the roller guide rail 39 to rotate upwards and tilt, so that the circuit board supported on it is guided to slide down from the front end of the test table 1 and finally fall into the collection box 47, realizing automated unloading and improving testing efficiency.

[0067] Furthermore, the top frame 42 needs to move upwards a short distance before contacting the limiting plate 44, so that the roller guide rail 39 can be moved upwards first to above each mounting seat 14 and connecting seat 15, and then the circuit board is tilted and guided to slide down. This avoids the circuit board being obstructed by the mounting seat 14 and connecting seat 15 during the sliding process, preventing it from sliding smoothly into the collection frame 47, or even remaining on the testing table 1, which would affect the continuous and efficient testing of the subsequent circuit boards.

[0068] Example 5:

[0069] like Figure 1-12 As shown, this invention discloses a method for testing inductance in circuit board inductors, comprising the following steps:

[0070] Step 1: Place the circuit board on the roller guide rail 39 of the test table 1 and between each connecting seat 15. Then, the telescopic component 2 32 retracts, causing the mounting frame 33 to slide down. The linkage component drives each connecting seat 15 to move closer to each other and center and limit the circuit board on each side.

[0071] Step 2: As the telescopic component 2 32 retracts, the mounting frame 33 will continue to move downward. After each connecting seat 15 centers and limits the circuit board, the variable frequency motor 23 is started, which in turn drives each lever 26 to rotate. Through the sliding contact between the lever 26 and the triangular pull rod 22, the slide bar 17 is pulled to slide downward within the connecting seat 15.

[0072] Step 3: As the slider 17 slides down, the claw 18, which is connected to its upper end by a spring hinge, will gradually slide down from its inclined position against the inclined plate 19 to its position against the vertical connecting seat 15. This allows the claw 18 to rotate from its inclined position to a vertical position against the spring hinge. As it continues to slide down, the claw 18 will lock onto the upper edge of each circuit board to securely lock the circuit board in place.

[0073] Step 4: Adjust the position of the detection probes 10 on both sides by adjusting the components, so that the detection probes 10 can move flexibly in the horizontal and vertical directions. At the same time, the detection probes 10 can also be deflected appropriately during adjustment to move to different positions and deflect at different angles, so as to test the inductor components on the circuit board. The detected data is then analyzed by the inductor component analysis and testing module 2.

[0074] Step 5: After the test is completed, extend the telescopic component 32, cancel the locking position of the claw 18 on the upper edge of the circuit board and the locking position of each connecting seat 15 on each side of the circuit board. Then, through the continued extension of the telescopic component 32, drive the mounting frame 33 and the drive components set on it to run, push the circuit board out from the upper end of the testing table 1 and slide it down to realize the unloading.

[0075] Based on the disclosure and teachings of the foregoing specification, those skilled in the art can make changes and modifications to the above embodiments. Therefore, the present invention is not limited to the specific embodiments disclosed and described above, and some modifications and changes to the present invention should also fall within the protection scope of the claims of the present invention. Furthermore, although some specific terms are used in this specification, these terms are only for convenience of explanation and do not constitute any limitation on the present invention.

Claims

1. Inductance testing machine for circuit board inductance elements, comprising a detection table (1), the upper end of the detection table (1) is provided with an inductance element analysis testing module (2), and an upper inner wall of the detection table (1) is further provided with a pair of detection probes (10); the detection table (1) is provided with an adjusting assembly for adjusting the position and angle of the detection probes (10), characterized in that, The detection platform (1) is provided with a plurality of limiting sliding blocks (12) through the sliding of the array, the upper end of the limiting sliding block (12) is connected with a mounting seat (14), each mounting seat (14) is provided with a connecting seat (15), the connecting seat (15) is slidably sleeved with a sliding bar (17), the upper end of the sliding bar (17) is rotatably connected with a pawl (18) through a spring hinge, the connecting seat (15) is further connected with an inclined plate (19) matched with the pawl (18) for limiting, and the lower end of the sliding bar (17) is connected with a triangular pull rod (22). The lower end of the detection platform (1) is provided with a variable frequency motor (23), and the lower side output end of the variable frequency motor (23) is provided with a ring table (24), the outer side of the ring table (24) is provided with a plurality of push rods (26) which are in sliding fit with the triangular pull rod (22), the bottom of the detection platform (1) is provided with a telescopic member two (32), and the upper side output end of the telescopic member two (32) is connected with a mounting frame (33), the detection platform (1) is provided with a linkage assembly, the linkage assembly is used for driving each limiting sliding block (12) to slide towards each other when the mounting frame (33) slides downwards, the upper end of the detection platform (1) is provided with a groove (37), and the groove (37) is slidably provided with a roller guide rail (39), the mounting frame (33) is provided with a driving assembly, and the driving assembly is used for driving the roller guide rail (39) to move upwards and tilt, so as to unload the circuit board after detection.

2. The inductance testing machine for a circuit board inductance element according to Claim 1, wherein The upper end face of the detection platform (1) is provided with a plurality of limiting sliding grooves (11) through the sliding, and each limiting sliding groove (11) is arranged in the circumferential direction of the detection platform (1), each limiting sliding block (12) is slidably arranged in the limiting sliding groove (11) on one side, and the upper and lower ends of the limiting sliding block (12) extend on the upper and lower sides of the detection platform (1) through the limiting sliding groove (11), the mounting seat (14) is connected to the extending end of the limiting sliding block (12) on the upper side of the detection platform (1), the connecting seat (15) and the lower end of the sliding bar (17) extend below the detection platform (1) through the limiting sliding groove (11), the lower extending end of the connecting seat (15) is connected with the sliding rods (20) arranged on both sides of the sliding bar (17), the lower extending end of the sliding bar (17) is connected with the sleeve blocks (29) slidably sleeved with the sliding rods (20), and the sleeve blocks (29) and the lower ends of the sliding rods (20) are connected with the springs one (21) sleeved outside the sliding rods (20).

3. The inductance testing machine for a circuit board inductance element according to Claim 1, wherein The connecting seat (15) on the front and rear sides is connected to the mounting seat (14), the mounting seat (14) on the left and right sides is slidably sleeved with a sliding rod frame (46) through the sliding, the sliding rod frame (46) is rotatably sleeved with a screw rod (45), the connecting seat (15) on the left and right sides is connected to the sliding rod frame (46) on the side of the mounting seat (14) close to the center of the detection platform (1), the screw rod (45) is threadedly sleeved in the mounting seat (14) and is rotatably connected with the connecting seat (15) through the bearing.

4. The inductance testing machine for a circuit board inductance element according to Claim 1, wherein Each of the connecting seat (15) is vertically opened with slide rail (16), the two sides of the slide bar (17) are limitedly connected in the slide rail (16), the inclined plate (19) is connected in the upper end of the connecting seat (15), and is deflected and inclined to the side away from the center of the detection table (1).

5. The inductance testing machine for a circuit board inductance element according to Claim 1, wherein The outer side of the ring table (24) is arrayed with a threaded cylinder (25), one end of each of the shift lever (26) is threadedly sleeved in the threaded cylinder (25), and the other end extends outside the threaded cylinder (25) and is in sliding fit and resistance with the triangular pull rod (22).

6. The inductance testing machine for a circuit board inductance element according to Claim 1, wherein The adjusting assembly comprises an x-axis guide rail (3), a y-axis guide rail (4), a guide block (5), a telescopic part one (6), an electric steering seat one (7), an electric steering seat two (8), a push rod motor (9), the x-axis guide rail (3) is installed on the upper inner wall of the detection table (1), the y-axis guide rail (4) is arranged perpendicularly to the x-axis guide rail (3) and is in sliding connection with the x-axis guide rail (3), the guide block (5) is in sliding connection in the y-axis guide rail (4), the telescopic part one (6) is installed at the lower end of the guide block (5) and extends below the y-axis guide rail (4), the electric steering seat one (7) is installed at the lower side output end of the telescopic part one (6), the electric steering seat two (8) is installed at the lower side output end of the electric steering seat one (7), the push rod motor (9) is provided with two and is installed at the lower side output ends of the electric steering seat two (8), and the upper ends of the detection probes (10) on the two sides are connected to the output ends of the push rod motors (9) on the two sides.

7. The inductance testing machine for a circuit board inductance element according to Claim 1, wherein The linkage assembly comprises a vertical plate (13), a guide rod one (27) and a sliding frame (28), the vertical plate (13) is connected to the extended end of each limiting sliding block (12) on the lower side of the detection table (1), the guide rod one (27) is arrayed connected to the bottom of the detection table (1), the sliding frame (28) is slidably sleeved on the outer side of each guide rod one (27), the sliding frame (28) is sleeved on the outer side of the telescopic part two (32) and is in resistance with the lower end surface of the mounting frame (33) on the lower side of the mounting frame (33), the sliding frame (28) and the bottom of the detection table (1) are further connected with a spring two (30) sleeved on the outer side of the guide rod one (27), and the sliding frame (28) and each vertical plate (13) are rotatably connected with a rotating plate (31).

8. The inductance testing machine for a circuit board inductance element according to Claim 1, wherein The driving assembly comprises a second guide rod (34), a front sliding plate (35), a rear sliding plate (36), a short connecting rod (38), a long sliding rod (41), a top frame (42), a limiting inclined block (43), and a limiting plate (44), the second guide rod (34) is connected to the lower end face of the detection table (1) and is located on the front and rear sides of the lower end of the detection table (1), the front sliding plate (35) is slidably arranged outside the front second guide rod (34), the rear sliding plate (36) is slidably arranged outside the rear second guide rod (34), the short connecting rod (38) is connected to the upper end of the front sliding plate (35), the long sliding rod (41) is connected to the upper end of the rear sliding plate (36), the roller guide rail (39) extends to the front and rear sides of the detection table (1), the upper end of the short connecting rod (38) is rotatably connected to the lower end of the front roller guide rail (39), the upper end of the long sliding rod (41) is slidably connected to the lower end of the rear roller guide rail (39), the top frame (42) is rotatably connected to the two sides of the mounting frame (33) through a spring hinge, the mounting frame (33) is further provided with the limiting inclined block (43) located at the lower side of the rear end of the top frame (42) and abutting against the lower side of the top frame (42), the limiting plate (44) is connected to the front lower end of the detection table (1), and the lower end of the top frame (42) abutting against the limiting plate (44).

9. The inductance testing machine for a circuit board inductance element according to Claim 8, wherein The lower end of the rear roller guide rail (39) is connected with a sliding channel frame (40), the upper end of the long sliding rod (41) abutting against the inner wall of the sliding channel frame (40), and the front side of the detection table (1) is further provided with a collecting frame (47).

10. An inductance testing method for a circuit board inductance element, based on the inductance testing machine for a circuit board inductance element according to any one of claims 1 to 9, characterized by, The method comprises the following steps: Step one: place the circuit board on the roller guide rail (39) of the detection table (1) and between the connecting seats (15), then contract the second telescopic part (32) to drive the mounting frame (33) to slide downward, and drive the connecting seats (15) to move close to each other through the linkage assembly to center and limit the sides of the circuit board; Step two: as the second telescopic part (32) is contracted, the mounting frame (33) will continue to move downward, when the connecting seats (15) center and limit the circuit board, start the variable frequency motor (23) to drive the lever rods (26) to rotate, and drive the sliding strip (17) to slide downward in the connecting seat (15) through the sliding and abutting of the lever rods (26) and the triangular pull rod (22); Step three: in the process of sliding downward of the sliding strip (17), the upper end of the sliding strip (17) is rotatably connected with the pawl (18) through a spring hinge, the pawl (18) will gradually abut against the inclined plate (19) and slide downward to abut against the vertical connecting seat (15), so that the pawl (18) can rotate from the inclined state to the vertical state by overcoming the action of the spring hinge, and in the process of continuous downward movement, the pawl (18) can be clamped on the upper side of the edge of each circuit board to stably clamp the circuit board. Step four: adjust the position of the two sides of the detection probe (10) through the adjusting assembly, so that the detection probe (10) can be flexibly moved in horizontal and vertical directions, and at the same time, the detection probe (10) can also be appropriately deflected in the adjustment to move to different positions and deflect at different angles, realize the test of the inductance element on the circuit board, and analyze the detected data through the inductance element analysis test module (2); Step five: when the test is completed, extend the telescopic member two (32), cancel the clamping of the clamping jaw (18) on the end face edge of the circuit board and the clamping of each connecting seat (15) on each side of the circuit board, and then continue to extend the telescopic member two (32) to drive the mounting frame (33) and the driving assembly arranged thereon to run, push the circuit board out of the upper end of the detection table (1) and slide down to realize the discharging.

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