Inductance testing machine

By designing an inductance testing machine, a robotic arm is used to automatically feed, test, and collect inductors, solving the problem of low testing efficiency for plug-in inductors, improving testing efficiency, and reducing labor intensity.

CN224061788UActive Publication Date: 2026-03-31SHENZHEN JINGCHUANGHONG TECH
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Patent Information

Authority / Receiving Office
CN · China
Patent Type
Utility models(China)
Current Assignee / Owner
Filing Date
2025-05-13
Publication Date
2026-03-31

AI Technical Summary

Technical Problem

The testing efficiency of plug-in inductors in the existing technology is low, mainly because the inductors are small in size and require frequent manual handling and plugging/unplugging, resulting in high labor intensity and low efficiency.

Method used

Design an inductance testing machine, including an inductance feeding mechanism, a transfer mechanism, a testing device, and a receiving mechanism. The machine utilizes a PPU robotic arm and grippers to achieve automatic feeding, testing, and receiving of inductors, and completes the automated operation of inductors through the robotic arm.

Benefits of technology

It has automated inductance testing, improved testing efficiency, reduced labor intensity, improved the working environment, and reduced the error rate of manual operation.

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Abstract

The utility model relates to an inductance testing machine which comprises a machine frame, an inductance feeding mechanism, an inductance transplanting mechanism, an inductance testing device and a material receiving mechanism. The inductor feeding mechanism, the inductor testing device and the receiving mechanism are sequentially arranged on the rack, and the inductor feeding mechanism is used for storing and conveying to-be-detected inductors; the inductor transplanting mechanism is arranged above the output end of the inductor feeding mechanism and comprises a PPU mechanical arm, a first grabbing piece and a second grabbing piece, the PPU mechanical arm is arranged on the rack, and the first grabbing piece and the second grabbing piece are arranged at the execution end of the PPU mechanical arm at intervals in the inductor conveying direction and used for grabbing inductors conveyed by the inductor feeding mechanism to the inductor testing device. The tested inductor is grabbed to a material receiving mechanism; and the receiving mechanism is arranged on one side of the inductor testing device and is used for receiving the tested inductor. According to the utility model, automatic feeding, testing and receiving of inductors are realized, the inductor testing efficiency is improved, the labor intensity is reduced, and the testing accuracy is improved.
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Description

Technical Field

[0001] This utility model relates to the field of inductance testing technology, and specifically to an inductance testing machine. Background Technology

[0002] Inductors primarily function in circuits as filters, oscillators, delayers, and notch filters. They also screen signals, filter noise, stabilize current, and suppress electromagnetic interference. They are commonly used electrical components. Inductors are divided into surface-mount inductors and through-hole inductors. In the production of through-hole inductors, their electrical performance needs to be tested before packaging. Currently, the testing of through-hole inductors is mostly done manually using an inductance meter. During testing, the inductor is manually picked up, its leads are inserted into the inductance meter, and parameters such as resistance, inductance, and capacitance are measured. After testing, the inductor is removed for the next measurement. Due to the small size of through-hole inductors and the need for manual insertion and removal, the inductor testing efficiency is low. Utility Model Content

[0003] The purpose of this invention is to provide an inductance testing machine to solve the aforementioned problems existing in the current inductance testing process.

[0004] To achieve the above objectives, the present invention adopts the following technical solution:

[0005] An inductance testing machine includes a frame, an inductor feeding mechanism, an inductor transfer mechanism, an inductance testing device, and a receiving mechanism. The inductor feeding mechanism, inductance testing device, and receiving mechanism are sequentially arranged on the frame. The inductor feeding mechanism stores and transports inductors to be tested. The inductor transfer mechanism is located above the output end of the inductor feeding mechanism. The inductor transfer mechanism picks up the inductors transported by the inductor feeding mechanism and inserts them into the inductance testing device. It also picks up inductors that have completed testing on the inductance testing device and transfers them to the receiving mechanism. The receiving mechanism is located on one side of the inductance testing device. The inductor transfer mechanism collects the inductors that have completed testing through the receiving mechanism. The inductor transfer mechanism includes a PPU robot, a first gripper, and a second gripper. The PPU robot is mounted on the frame. The first gripper and the second gripper are spaced apart at the execution end of the PPU robot along the inductor conveying direction. The first gripper is configured to grip the inductors conveyed by the inductor feeding mechanism and transfer them to the inductor testing device when the PPU robot moves. The second gripper is configured to grip the inductors that have completed testing on the inductor testing device and transfer them to the receiving mechanism when the PPU robot moves.

[0006] Furthermore, the inductive feeding mechanism includes a vibrating feeding plate and a feeding track. The vibrating feeding plate is disposed on the frame, and the feeding track is connected to the output end of the vibrating feeding plate, with the output end of the feeding track located below the first gripper.

[0007] Furthermore, the PPU robotic arm has a mounting plate on its actuator end along the moving direction of the inductor, the first gripper is mounted on one end of the mounting plate in the vertical direction, and the second gripper is mounted on the other end of the mounting plate in the vertical direction.

[0008] Furthermore, the top surface of the inductance testing device is provided with a plug-in test hole for inserting an inductor for testing.

[0009] Furthermore, the receiving mechanism includes a motor, a turntable, a rotating platform plate, and a receiving box. The turntable is mounted on the frame, and the motor is connected to the turntable for driving the turntable to rotate. The rotating platform plate is connected to the turntable, and the receiving box is mounted on the rotating platform plate. Multiple receiving boxes are provided, each circumferentially mounted on the rotating platform plate. The motor drives each receiving box to rotate, and the receiving box is used to receive the inductors that have completed the test.

[0010] Furthermore, the inductance testing device is provided with a receiving guide hopper at one end near the receiving mechanism, and the receiving guide hopper is correspondingly provided with the receiving box.

[0011] The beneficial effects of this utility model are:

[0012] This utility model of an inductor testing machine, through the establishment of an inductor feeding mechanism, an inductor transfer mechanism, an inductor testing device, and a receiving mechanism, achieves automatic feeding, automatic transfer to the testing device, and automatic receiving of inductors. The PPU robotic arm in the inductor transfer mechanism drives the first and second grippers, enabling rapid and accurate transfer of inductors between feeding, testing, and receiving. This eliminates the need for frequent manual handling and insertion / removal of inductors, significantly shortening the testing time for individual inductors and substantially improving the overall efficiency of inductor testing. During manual testing, operators need to concentrate for extended periods on handling and insertion / removal, resulting in high labor intensity and fatigue, affecting the accuracy and efficiency of the tests. This inductor testing machine has a high degree of automation; most operations are completed automatically by the machine, requiring only simple monitoring and maintenance by the operator, greatly reducing labor intensity and improving the working environment. Attached Figure Description

[0013] Figure 1 This is a schematic diagram of the structure of the inductance testing machine of this utility model;

[0014] Figure 2This is a schematic diagram of the inductance testing machine of this utility model after the frame has been removed;

[0015] Figure 3 This is a schematic diagram of the inductor transfer mechanism and the material receiving mechanism in the inductor testing machine of this utility model.

[0016] The names corresponding to each mark in the diagram:

[0017] 1. Frame; 2. Inductor feeding mechanism; 21. Vibrating feeding tray; 22. Feeding track; 3. Inductor transfer mechanism; 31. PPU robot; 32. First gripper; 33. Second gripper; 34. Mounting plate; 4. Inductance testing device; 41. Insertion test hole; 5. Receiving mechanism; 51. Motor; 52. Turntable; 53. Rotating platform plate; 54. Receiving box; 6. Receiving guide hopper. 1. Detailed Implementation Method

[0018] The technical solutions of the present invention will be clearly and completely described below with reference to the accompanying drawings of the embodiments of the present invention.

[0019] like Figure 1-3 As shown, the inductance testing machine provided in this embodiment mainly includes a frame 1, an inductance feeding mechanism 2, an inductance transfer mechanism 3, an inductance testing device 4, and a receiving mechanism 5.

[0020] The frame 1 serves as the supporting structure for the entire inductance tester, providing a mounting base for other components and ensuring that each component can be stably mounted on it to achieve the normal operation of the inductance tester.

[0021] Figure 2 As shown, the inductor feeding mechanism 2 is used to store and transport inductors to be tested. Specifically, the inductor feeding mechanism 2 includes a vibrating feeding tray 21 and a feeding track 22. The vibrating feeding tray 21 is mounted on the frame 1 and outputs the inductors to be tested stored inside it in an orderly manner by vibration. The feeding track 22 is connected to the output end of the vibrating feeding tray 21, guiding the inductors output from the vibrating feeding tray 21 to move along a specific path, and the output end of the feeding track 22 is located below the first gripper 32 so that the inductor transfer mechanism 3 can accurately grip the inductors.

[0022] Figure 2 and Figure 3As shown, the inductor transfer mechanism 3 is positioned above the output end of the inductor feeding mechanism 2. Its main function is to grab the inductors conveyed by the inductor feeding mechanism 2 and insert them into the inductor testing device 4, while simultaneously grabbing the inductors that have completed testing on the inductor testing device 4 and transferring them to the receiving mechanism 5. The inductor transfer mechanism 3 includes a PPU robot 31, a first gripper 32, and a second gripper 33. The PPU robot 31 is mounted on the frame 1, providing power and guidance for the movement of the first gripper 32 and the second gripper 33. The execution end of the PPU robot 31 is provided with a mounting plate 34 along the movement direction of the inductor. The first gripper 32 is mounted vertically on one end of the mounting plate 34, and the second gripper 33 is mounted vertically on the other end of the mounting plate 34. The first gripper 32 and the second gripper 33 are spaced apart along the conveying direction of the inductor. When the PPU robot arm 31 moves, the first gripper 32 can accurately grip the inductors conveyed by the inductor feeding mechanism 2 to the inductor testing device 4, while the second gripper 33 can grip the inductors that have completed testing on the inductor testing device 4 to the receiving mechanism 5, realizing the automatic transfer of inductors in the feeding, testing and receiving process, which greatly improves the testing efficiency.

[0023] Figure 3 As shown, the inductance testing device 4 is mounted on the frame 1, and the inductance feeding mechanism 2, the inductance testing device 4, and the receiving mechanism 5 are sequentially mounted on the frame 1. The top surface of the inductance testing device 4 is provided with a plug-in test hole 41 for inserting and testing the inductor. When the inductor is inserted into the plug-in test hole 41 by the first gripper 32, the inductance testing device 4 can test the inductor's resistance, inductance, capacitance, and other parameters, thereby realizing the detection of the inductor's electrical performance.

[0024] Figure 3As shown, the receiving mechanism 5 is located on one side of the inductance testing device 4 and is used to collect inductors that have completed testing. The receiving mechanism 5 includes a motor 51, a turntable 52, a rotating platform plate 53, and a receiving box 54. The turntable 52 is mounted on the frame 1, and the motor 51 is connected to the turntable 52 for transmission, driving the turntable 52 to rotate. The rotating platform plate 53 is connected to the turntable 52 and rotates synchronously with the turntable 52. Multiple receiving boxes 54 are mounted on the rotating platform plate 53, each circumferentially arranged on the rotating platform plate 53. When the inductor that has completed testing is grasped by the second gripper 33 and placed above the receiving mechanism 5, the motor 51 drives each receiving box 54 to rotate, enabling the corresponding receiving box 54 to accurately receive the inductor that has completed testing, thus realizing automatic inductor collection. In addition, a receiving guide hopper 6 is provided at one end of the inductance testing device 4 near the receiving mechanism 5. The receiving guide hopper 6 is correspondingly set with the receiving box 54. When the second gripper 33 places the inductor that has completed the test above the receiving guide hopper 6, the inductor can slide smoothly into the corresponding receiving box 54 along the receiving guide hopper 6, which further improves the accuracy and stability of receiving.

[0025] Working principle:

[0026] When using this inductance testing machine to perform inductance testing, the inductor to be tested is first placed in the vibrating feed tray 21. The vibrating feed tray 21 outputs the inductor in an orderly manner to the feed track 22 through vibration. The inductor moves along the feed track 22 to the output end of the feed track 22. At this time, the PPU robot 31 starts to move, driving the first gripper 32 mounted on its execution end mounting plate 34 to move downward. The first gripper 32 accurately grips the inductor located at the output end of the feed track 22. Then, the PPU robot 31 moves the first gripper 32 and the inductor to above the inductance testing device 4, and inserts the inductor into the insertion test hole 41 on the top surface of the inductance testing device 4. The inductance testing device 4 tests the parameters such as resistance, inductance, and capacitance of the inserted inductor.

[0027] While the inductance testing device 4 tests the inductor, the PPU robot arm 31 moves the second gripper 33 above the inductance testing device 4, ready to grasp the inductor that has completed the test. After the inductance testing device 4 completes the test, the second gripper 33 grasps the inductor, and the PPU robot arm 31 moves the second gripper 33 and the inductor to the receiving mechanism 5. At this time, the motor 51 drives the turntable 52 to rotate, causing the rotating platform plate 53 and the receiving box 54 set on it to rotate, so that the corresponding receiving box 54 moves to the receiving position. The second gripper 33 places the inductor above the receiving guide hopper 6, and the inductor slides along the receiving guide hopper 6 into the corresponding receiving box 54, completing the inductor collection.

[0028] Through the above process, the inductance testing machine realizes automatic feeding, automatic testing, and automatic unloading of inductors, avoiding manual handling and insertion / removal of inductors, and greatly improving the efficiency of inductance testing.

[0029] Obviously, the described embodiments are only some embodiments of this utility model, and not all embodiments. All other embodiments obtained by those skilled in the art based on the embodiments of this utility model are within the protection scope of this utility model.

Claims

1. An inductance tester characterized by: The inductor testing device comprises a rack, an inductor feeding mechanism, an inductor transplanting mechanism, an inductor testing device and an inductor collecting mechanism, the inductor feeding mechanism, the inductor testing device and the inductor collecting mechanism are sequentially arranged on the rack, the inductor feeding mechanism is used for storing and conveying inductors to be detected, the inductor transplanting mechanism is arranged above the output end of the inductor feeding mechanism, the inductor transplanting mechanism is used for grabbing the inductors conveyed by the inductor feeding mechanism and inserting the inductors into the inductor testing device, and the inductor transplanting mechanism is used for grabbing the inductors completing testing on the inductor testing device into the inductor collecting mechanism, the inductor collecting mechanism is arranged on one side of the inductor testing device, and the inductor collecting mechanism is used for collecting the inductors completing testing.

2. The inductance tester of claim 1, wherein: The inductor feeding mechanism comprises a vibrating feeding disc and a feeding track, the vibrating feeding disc is arranged on the rack, and the feeding track is connected to the output end of the vibrating feeding disc.

3. The inductance tester of claim 1, wherein: The execution end of the PPU manipulator is provided with a mounting plate in the moving direction of the inductors, the first grabbing piece is mounted on one end of the mounting plate in the up-down direction, and the second grabbing piece is mounted on the other end of the mounting plate in the up-down direction.

4. The inductor testing machine of claim 1, wherein: The top surface of the inductor testing device is provided with a plug-in test hole for inserting the inductor for testing.

5. The inductor testing machine of claim 1, wherein: The inductor collecting mechanism comprises a motor, a rotating disc, a rotating platform plate and a receiving box, the rotating disc is arranged on the rack, the motor is in transmission connection with the rotating disc and is used for driving the rotating disc to rotate, the rotating platform plate is connected to the rotating disc, the receiving box is arranged on the rotating platform plate, a plurality of receiving boxes are arranged on the rotating platform plate in the circumferential direction, and the motor is used for driving the receiving boxes to rotate.

6. The inductance tester of claim 5, wherein: The inductor testing device is provided with a receiving guide hopper close to one end of the inductor collecting mechanism, and the receiving guide hopper is arranged corresponding to the receiving box.