Inductance testing machine

By designing an automated inductor testing machine, the problem of low efficiency in manual testing during inductor production was solved, realizing automated testing of inductor products and rejection of NG products, thereby improving production efficiency.

CN224122660UActive Publication Date: 2026-04-14DONGGUAN DIANQU ELECTRONIC TECHNOLOGY CO LTD
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Patent Information

Authority / Receiving Office
CN · China
Patent Type
Utility models(China)
Current Assignee / Owner
Filing Date
2025-03-25
Publication Date
2026-04-14

AI Technical Summary

Technical Problem

The current inductor manufacturing process requires a large amount of manual labor for interlayer voltage and comprehensive testing, resulting in low production efficiency.

Method used

Design an inductance testing machine that integrates automatic interlayer voltage detection and comprehensive testing functions, and is equipped with tray-swiping capability. Through the coordinated work of the transport mechanism and the testing station, it realizes the automated testing of inductance products and the rejection of NG products.

Benefits of technology

It has enabled automated testing of inductor products, reduced the testing process for non-compliant products, saved resources and steps, and improved production efficiency.

✦ Generated by Eureka AI based on patent content.

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Abstract

The utility model discloses an inductance testing machine which comprises a machine frame, a first carrying mechanism, a second carrying mechanism, a conveyor, a first testing station, a second testing station, a first NG station and a second NG station, and the conveyor, the first testing station, the first NG station and the second testing station are sequentially arranged in the linear direction. The second NG station is located on one side of the second testing station, the first carrying mechanism and the second carrying mechanism are located on the two sides of the rack respectively, the first carrying mechanism is responsible for movement of the inductance products on the testing stations, the second carrying mechanism is responsible for tray arrangement of the inductance products, and a tray arrangement mechanism is arranged below the second carrying mechanism. And a test instrument is arranged behind the second carrying mechanism. The inductance testing machine can automatically detect inductance products twice, rejects NG products from each detection, reduces the detection process of the NG products, has the tray placing capability, saves resources and steps, and improves the production efficiency.
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Description

Technical Field

[0001] This utility model relates to the technical field of inductor production, and in particular to an inductor testing machine. Background Technology

[0002] An inductor is a component that can convert electrical energy into magnetic energy and store it. If an inductor is not carrying current, it will try to impede the flow of current when the circuit is closed; if an inductor is carrying current, it will try to maintain a constant current when the circuit is open.

[0003] In the conventional inductor production process, in order to ensure the quality of product batches, it is necessary to test the interlayer voltage and conduct comprehensive tests. The comprehensive tests include inductance value, leakage inductance, number of turns, Q value, balance and DCR, which require a lot of manpower. Utility Model Content

[0004] One objective of this invention is to provide an inductance testing machine that automatically detects interlayer voltage and performs comprehensive testing, while also having a tray-stacking capability, thereby improving productivity.

[0005] To achieve this objective, the present invention adopts the following technical solution:

[0006] An inductance testing machine includes a frame, a first transport mechanism, a second transport mechanism, a conveyor, a first testing station, a second testing station, a first NG station, and a second NG station. The conveyor, the first testing station, the first NG station, and the second testing station are arranged sequentially along a straight line. The second NG station is located on one side of the second testing station. The first transport mechanism and the second transport mechanism are respectively located on both sides of the frame. The first transport mechanism is responsible for moving the inductor products on the testing station, and the second transport mechanism is responsible for arranging the inductor products on a tray. A tray arranging mechanism is provided below the second transport mechanism, and a testing instrument is provided behind the second transport mechanism. Both the first testing station and the second testing station are connected to the testing instrument via signal transmission.

[0007] As a preferred technical solution, a conveyor motor is provided below one end of the conveyor, a conveyor belt is installed on the conveyor, and a conveyor timing pulley is installed at both the end of the conveyor belt and the drive end of the conveyor motor. A conveyor timing belt is connected between the conveyor timing pulleys, and a worktable is provided on one side of the conveyor belt.

[0008] As a preferred technical solution, a baffle plate is fixed at the rear end of the conveyor, a first sensor is installed on the baffle plate, a first cylinder is installed below the rear end of the conveyor belt, and a first clamping block is connected to the clamping arm of the first cylinder.

[0009] As a preferred technical solution, both the first test station and the second test station include a product seat, a second cylinder and an auxiliary block. A second sensor is installed on both sides of the product seat. A second clamping block is connected to the clamping arm of the second cylinder. A probe is installed on the second clamping block. The probe is connected to the test instrument for signal transmission.

[0010] As a preferred technical solution, both the first NG station and the second NG station are provided with NG drop holes. The first NG station is provided with a receiving cylinder. The driving end of the receiving cylinder is connected to a product receiving plate. Third sensors are installed on both sides of the receiving cylinder.

[0011] As a preferred technical solution, the first conveying mechanism includes a first transverse module, a transverse connecting plate, and a cylinder fixing plate. A first transverse motor is installed at one end of the first transverse module, and the first transverse motor drives the transverse connecting plate to move laterally. A first vertical cylinder is installed at the upper end of the transverse connecting plate, and the driving end of the first vertical cylinder is connected to the cylinder fixing plate. First pneumatic grippers are evenly distributed on the cylinder fixing plate. Slide rails are fixed on both sides of the transverse connecting plate along the vertical direction, and the cylinder fixing plate slides on the slide rails.

[0012] As a preferred technical solution, the second conveying mechanism includes a second transverse module and a module connecting plate. A second transverse motor is installed at one end of the second transverse module. The second transverse motor drives the module connecting plate to move laterally. A second vertical cylinder is fixed on the module connecting plate. A second pneumatic gripper is connected to the driving end of the second vertical cylinder.

[0013] As a preferred technical solution, the plate-swinging mechanism includes a plate-swinging slide rail, a plate-swinging motor, and a plate-swinging placement plate. The plate-swinging slide rail is fixed on the frame. The drive end of the plate-swinging motor is connected to a plate-swinging synchronous pulley. A plate-swinging synchronous belt is driven between the plate-swinging synchronous pulleys. A plate-swinging connecting plate is connected to the lower end of the plate-swinging placement plate. The plate-swinging connecting plate is fixed on the plate-swinging synchronous belt. The two sides of the plate-swinging placement plate slide on the plate-swinging slide rail.

[0014] As a preferred technical solution, a tray is fixed to the lower end of the frame, and a storage box slides on the tray. The storage box is located below the NG drop hole, and the outer side of the storage box has a handle.

[0015] As a preferred technical solution, a control panel is installed on one side of the rack, and a three-color indicator light is fixed on the control panel.

[0016] The beneficial effects of this utility model are as follows: It provides an inductance testing machine that can automatically perform inductance product testing in two stages, removing NG products from each test, reducing the testing process for NG products, and has tray placement capability, saving resources and steps, and improving production efficiency. Attached Figure Description

[0017] The present invention will now be described in further detail with reference to the accompanying drawings and embodiments.

[0018] Figure 1 This is a schematic diagram of the overall structure of an inductance testing machine as described in the embodiment;

[0019] Figure 2 This is a three-dimensional structural diagram of the conveyor described in the embodiment;

[0020] Figure 3 This is a partial structural diagram of the conveyor described in the embodiment;

[0021] Figure 4 This is a three-dimensional structural diagram of the first test station (or the second test station) described in the embodiment;

[0022] Figure 5 This is a structural diagram of the combination of the first conveying mechanism and the buffer station described in the embodiment;

[0023] Figure 6 This is a three-dimensional structural diagram of the second conveying mechanism described in the embodiment;

[0024] Figure 7 This is a first three-dimensional structural diagram of the plate-stacking mechanism described in the embodiment;

[0025] Figure 8 This is a second three-dimensional structural diagram of the plate-stacking mechanism described in the embodiment;

[0026] Figure 9 This is a structural diagram of the combination of the tray and the storage box described in the embodiment.

[0027] Figures 1 to 9 middle:

[0028] 1. Frame; 2. First conveying mechanism; 3. Second conveying mechanism; 4. Conveyor; 5. First testing station; 6. Second testing station; 7. First NG station; 8. Second NG station; 9. Tray mechanism; 10. Testing instrument; 11. Conveyor motor; 12. Conveyor belt; 13. Conveyor pulley; 14. Conveyor belt; 15. Workbench; 16. Baffle plate; 17. First sensor; 18. First cylinder; 19. First clamping block; 20. Product holder; 21. Second cylinder; 22. Auxiliary block; 23. Second sensor; 24. Second clamping block; 25. Probe; 26. Receiving cylinder; 27. Product receiving cylinder. 28. Material plate; 29. ​​Third sensor; 30. First transverse module; 31. Transverse connecting plate; 32. Cylinder fixing plate; 33. First transverse motor; 34. First vertical cylinder; 35. First pneumatic gripper; 36. Slide rail; 37. Second transverse module; 38. Module connecting plate; 39. Second transverse motor; 40. Second vertical cylinder; 41. Second pneumatic gripper; 42. Slide rail; 43. Slide motor; 44. Slide placement plate; 45. Slide synchronous pulley; 46. Slide synchronous belt; 47. Slide connecting plate; 48. Support plate; 49. Storage box; 50. Handle; 51. Control panel; 52. Three-color indicator light. Detailed Implementation

[0029] The technical solution of this utility model will be further described below with reference to the accompanying drawings and specific embodiments.

[0030] like Figures 1 to 9 As shown in this embodiment, an inductance testing machine includes a frame 1, a first transport mechanism 2, a second transport mechanism 3, a conveyor 4, a first testing station 5, a second testing station 6, a first NG station 7, and a second NG station 8. The conveyor 4, the first testing station 5, the first NG station 7, and the second testing station 6 are arranged sequentially along a straight line. The second NG station 8 is located on one side of the second testing station 6. The first transport mechanism 2 and the second transport mechanism 3 are respectively located on both sides of the frame 1. The first transport mechanism 2 is responsible for moving the inductor products on the testing station, and the second transport mechanism 3 is responsible for arranging the inductor products on a tray. A tray arranging mechanism 9 is provided below the second transport mechanism 3, and a testing instrument 10 is provided behind the second transport mechanism 3. The first testing station 5 and the second testing station 6 are both connected to the testing instrument 10 via signal connection.

[0031] The inductors are manually placed on conveyor 4, which moves them backward one by one. The first transport mechanism 2 picks up the inductors at the rear of conveyor 4 and places them on the first test station 5. At the same time, the inductors on the original first test station 5 are moved to the first NG station 7. If the first test is qualified, they are temporarily placed in the buffer station of the first NG station 7. At the same time, the inductors on the original buffer station are moved to the second test station 6. If the first test is NG, they are dropped from the first NG station 7 for collection. The first transport mechanism 2 repeats the above three picking actions. Then the second transport mechanism 3 places the inductor products that have passed the second test into the tray mechanism 9. If the second test is NG, the inductor products are dropped from the second NG station 8 for collection. Finally, qualified inductor products are obtained in batches from the tray mechanism 9 by manual inspection.

[0032] A conveyor motor 11 is installed below one end of the conveyor 4. A conveyor belt 12 is installed on the conveyor 4. A conveyor synchronous pulley 13 is installed at both the end of the conveyor belt 12 and the drive end of the conveyor motor 11. A conveyor synchronous belt 14 is connected between the conveyor synchronous pulleys 13. A workbench 15 is installed on one side of the conveyor belt 12. A baffle plate 16 is fixed at the rear end of the conveyor 4. A first sensor 17 is installed on the baffle plate 16. A first cylinder 18 is installed below the rear end of the conveyor belt 12. A first clamping block 19 is connected to the clamping arm of the first cylinder 18.

[0033] The workbench 15 facilitates manual placement of inductor products. The conveyor motor 11 provides power, and through the action of the conveyor synchronous pulley 13 and the conveyor synchronous belt 14, the conveyor belt 12 transports the inductor products backward. Under the obstruction of the baffle plate 16, the first sensor 17 detects the inductor products, and the first cylinder 18 controls the first clamping block 19 to position the inductor products, making it easy for the first handling mechanism 2 to take them away.

[0034] The first conveying mechanism 2 includes a first transverse module 29, a transverse connecting plate 30, and a cylinder fixing plate 31. A first transverse motor 32 is installed at one end of the first transverse module 29. The first transverse motor 32 drives the transverse connecting plate 30 to move laterally. A first vertical cylinder 33 is installed at the upper end of the transverse connecting plate 30. The driving end of the first vertical cylinder 33 is connected to the cylinder fixing plate 31. First pneumatic grippers 34 are evenly distributed on the cylinder fixing plate 31. Slide rails 35 are fixed on both sides of the transverse connecting plate 30 along the vertical direction. The cylinder fixing plate 31 slides on the slide rails 35.

[0035] The first horizontal movement module 29 controls the inductor products to be placed horizontally in the order of detection, NG position, and inspection. The horizontal movement is driven by the first horizontal movement motor 32, while the vertical movement is controlled by the first vertical movement cylinder 33. The first pneumatic gripper 34 grabs the inductor products for transfer.

[0036] Both the first test station 5 and the second test station 6 include a product holder 20, a second cylinder 21 and an auxiliary block 22. A second sensor 23 is installed on both sides of the product holder 20. A second clamping block 24 is connected to the clamping arm of the second cylinder 21. A probe 25 is installed on the second clamping block 24. The probe 25 is connected to the test instrument 10 via signal.

[0037] After the inductor is placed on the product holder 20, the second sensor 23 senses the inductor. Under the constraint of the auxiliary block 22, the second cylinder 21 controls the second clamping block 24 to move towards the center, so that the probe 25 can test the inductor. The first test station 5 detects the interlayer voltage, and the second test station 6 detects the inductance value, leakage inductance, number of turns, Q value, balance and DCR. The data is transmitted to the test instrument 10.

[0038] Both the first NG station 7 and the second NG station 8 are equipped with NG drop holes. The first NG station 7 is equipped with a receiving cylinder 26. The driving end of the receiving cylinder 26 is connected to a product receiving plate 27. Third sensors 28 are installed on both sides of the receiving cylinder 26.

[0039] Furthermore, a tray 47 is fixed to the lower end of the frame 1, and a storage box 48 slides on the tray 47. The storage box 48 is located below the NG drop hole, and a handle 49 is provided on the outside of the storage box 48.

[0040] When the first test station 5 detects an NG product, the first conveying mechanism 2 picks up the inductor product from the first test station 5 and places it on the first NG station 7. At the same time, the receiving cylinder 26 controls the product receiving plate 27 to retract, making room for the NG drop hole, so that the NG product falls down and into the storage box 48. When the box is full, a person can pull the handle 49 to pull the storage box 48 from the tray 47 and remove the NG product. When the first test station 5 detects a qualified product, the receiving cylinder 26 controls the product receiving plate 27 to extend and catch the inductor product on the product receiving plate 27, which is detected by the third sensor 28.

[0041] The second conveying mechanism 3 includes a second transverse module 36 and a module connecting plate 37. A second transverse motor 38 is installed at one end of the second transverse module 36. The second transverse motor 38 drives the module connecting plate 37 to move laterally. A second vertical cylinder 39 is fixed on the module connecting plate 37. A second pneumatic gripper 40 is connected to the drive end of the second vertical cylinder 39.

[0042] The second testing station 6 tests the inductor products transferred from the product receiving plate 27. If it is an NG product, it is transferred to the NG drop hole of the second NG station 8 under the action of the second conveying mechanism 3. If it is a qualified product, it is placed on the tray mechanism 9 for traying. When the second conveying mechanism 3 is working, the second horizontal motor 38 controls the horizontal transfer action, while the vertical movement is driven by the second vertical cylinder 39. The second pneumatic gripper 40 is responsible for gripping the inductor products.

[0043] The plate-sloshing mechanism 9 includes a plate-sloshing slide rail 41, a plate-sloshing motor 42, and a plate-sloshing placement plate 43. The plate-sloshing slide rail 41 is fixed on the frame 1. The drive end of the plate-sloshing motor 42 is connected to a plate-sloshing synchronous pulley 44. A plate-sloshing synchronous belt 45 is connected between the plate-sloshing synchronous pulleys 44. The lower end of the plate-sloshing placement plate 43 is connected to a plate-sloshing connecting plate 46. The plate-sloshing connecting plate 46 is fixed on the plate-sloshing synchronous belt 45. The two sides of the plate-sloshing placement plate 43 slide on the plate-sloshing slide rail 41.

[0044] During the plate-setting process, the plate-setting motor 42 provides power. Under the action of the plate-setting synchronous pulley 44 and the plate-setting synchronous belt 45, the plate-setting plate 43 continuously receives qualified inductor products along the direction of the plate-setting slide rail 41. After being fully loaded with products, it moves forward to output the products.

[0045] A control panel 50 is installed on one side of the rack 1. A three-color indicator light 51 is fixed on the control panel 50. During the testing process, the testing and tray placement actions are automatically performed by inputting the control program on the control panel 50. The three-color indicator light 51 is responsible for indicating whether the current work is going smoothly.

[0046] It should be stated that the above-described specific embodiments are merely preferred embodiments of this utility model and the technical principles applied thereto. Within the scope of the technology disclosed in this utility model, any variations or substitutions that are easily conceived by those skilled in the art should be covered within the protection scope of this utility model.

Claims

1. An inductance testing machine, characterized in that, The system includes a frame, a first transport mechanism, a second transport mechanism, a conveyor, a first test station, a second test station, a first NG station, and a second NG station. The conveyor, the first test station, the first NG station, and the second test station are arranged sequentially along a straight line. The second NG station is located on one side of the second test station. The first transport mechanism and the second transport mechanism are located on opposite sides of the frame. The first transport mechanism is responsible for moving the inductor products on the test station, and the second transport mechanism is responsible for arranging the inductor products on a tray. A tray arranging mechanism is provided below the second transport mechanism, and a testing instrument is provided behind the second transport mechanism. Both the first test station and the second test station are connected to the testing instrument via signal transmission.

2. The inductance testing machine according to claim 1, characterized in that, A conveyor motor is installed below one end of the conveyor, and a conveyor belt is installed on the conveyor. A conveyor timing pulley is installed at both the end of the conveyor belt and the drive end of the conveyor motor. A conveyor timing belt is connected between the conveyor timing pulleys. A worktable is provided on one side of the conveyor belt.

3. An inductance testing machine according to claim 2, characterized in that, A baffle plate is fixed at the rear end of the conveyor, a first sensor is installed on the baffle plate, a first cylinder is installed below the rear end of the conveyor belt, and a first clamping block is connected to the clamping arm of the first cylinder.

4. An inductance testing machine according to claim 1, characterized in that, Both the first test station and the second test station include a product seat, a second cylinder, and an auxiliary block. A second sensor is installed on both sides of the product seat. A second clamping block is connected to the clamping arm of the second cylinder. A probe is installed on the second clamping block. The probe is connected to the test instrument for signal transmission.

5. An inductance testing machine according to claim 1, characterized in that, Both the first NG station and the second NG station are provided with NG drop holes. The first NG station is provided with a receiving cylinder. The driving end of the receiving cylinder is connected to a product receiving plate. Third sensors are installed on both sides of the receiving cylinder.

6. An inductance testing machine according to claim 1, characterized in that, The first conveying mechanism includes a first transverse module, a transverse connecting plate, and a cylinder fixing plate. A first transverse motor is installed at one end of the first transverse module, and the first transverse motor drives the transverse connecting plate to move laterally. A first vertical cylinder is installed at the upper end of the transverse connecting plate, and the driving end of the first vertical cylinder is connected to the cylinder fixing plate. First pneumatic grippers are evenly distributed on the cylinder fixing plate. Slide rails are fixed on both sides of the transverse connecting plate along the vertical direction, and the cylinder fixing plate slides on the slide rails.

7. An inductance testing machine according to claim 1, characterized in that, The second conveying mechanism includes a second transverse module and a module connecting plate. A second transverse motor is installed at one end of the second transverse module. The second transverse motor drives the module connecting plate to move laterally. A second vertical cylinder is fixed on the module connecting plate. A second pneumatic gripper is connected to the drive end of the second vertical cylinder.

8. An inductance testing machine according to claim 1, characterized in that, The swivel mechanism includes a swivel slide rail, a swivel motor, and a swivel placement plate. The swivel slide rail is fixed on the frame. The drive end of the swivel motor is connected to a swivel timing pulley. A swivel timing belt is connected between the swivel timing pulleys. A swivel connecting plate is connected to the lower end of the swivel placement plate. The swivel connecting plate is fixed on the swivel timing belt. The two sides of the swivel placement plate slide on the swivel slide rail.

9. An inductance testing machine according to claim 5, characterized in that, A tray is fixed to the lower end of the frame, and a storage box slides on the tray. The storage box is located below the NG drop hole, and the outside of the storage box has a handle.

10. An inductance testing machine according to claim 1, characterized in that, A control panel is installed on one side of the rack, and a three-color indicator light is fixed on the control panel.