Inductor testing device

Abstract

The utility model discloses an inductor testing device, which belongs to the technical field of inductor detection and is structurally characterized in that a detection table is fixed at the top of a base, a top plate is fixed at the top of the detection table, a testing head capable of freely lifting is in sliding fit with the bottom of the top plate, two pin cylinders are arranged at the bottom of the testing head, and a material receiving box is in sliding fit with the upper surface of the base; transmission boxes are arranged at the two ends of the detection table, positioning assemblies are arranged on the two sides of the detection table in a sliding fit mode, and the two positioning assemblies are symmetrically arranged. The inductor testing device provided by the embodiment of the utility model can realize continuous and stable testing of a plurality of inductors, can quickly remove the detected inductors, and improves the detection efficiency of the inductors.

Description

Technical Field

[0001] The utility model relates to the technical field of inductor detection, in particular to an inductor testing device. Background Art

[0002] An inductor is an electronic component that can convert electrical energy into magnetic energy and store it. An inductor has a certain inductance, which is used to hinder the change of current. If there is no current flowing through the inductor, it will try to hinder the current from flowing through it when the circuit is connected; if there is current flowing through the inductor, it will try to maintain the current when the circuit is disconnected. Inductors are also called chokes, reactors, and dynamic reactors. Inductors must undergo a withstand voltage test during the production process, that is, high voltage is loaded on the pins of the inductor to allow a large current to pass through the inductor. The purpose of the withstand voltage test is to eliminate the impact of short-circuit hazards such as paint damage on the service life and safety of the inductor, and it is also for reliability and safety considerations during actual use.

[0003] The existing inductor testing device cannot continuously test multiple inductors one by one, and after the test is completed, the tested inductors need to be removed manually, resulting in low inductor testing efficiency. Utility Model Content

[0004] In order to solve the above-mentioned deficiencies in the prior art, the purpose of the utility model is to provide an inductor testing device, which can realize continuous and stable testing of multiple inductors and can quickly remove the inductors after testing, thereby improving the detection efficiency of the inductors.

[0005] The technical solution adopted by the utility model to solve its technical problems is:

[0006] Provided is an inductor testing device, comprising a base and a testing instrument, wherein a testing platform is fixed on the top of the base, a top plate is fixed on the top of the testing platform, a freely liftable testing head is slidably matched at the bottom of the top plate, two pin barrels are provided at the bottom of the testing head, a material receiving box is slidably matched at the upper surface of the base, transmission boxes are provided at both ends of the testing platform, and positioning components are slidably matched at both sides of the testing platform, and the two positioning components are symmetrically arranged;

[0007] The positioning assembly includes a side plate, a bottom support plate is fixed to the bottom of the side plate, a plurality of elastic telescopic cylinders are fixed to one side of the side plate, a clamping plate is fixed to the telescopic end of the elastic telescopic cylinder, a plurality of through grooves are provided on the detection platform, and slide grooves are provided at positions on the upper surface of the detection platform on both sides of the through grooves, the clamping plate is slidably fitted in the slide grooves, a group of circular grooves are provided on both side surfaces of the detection platform, a group of positioning columns are fixed to one side of the side plate, the positioning columns are slidably fitted in the circular grooves, and a tension spring is fixed between one end of the positioning column and the bottom of the circular groove;

[0008] A gear is rotatably connected inside the transmission box, and the inner top surface and inner bottom surface of the transmission box are respectively slidably matched with the second rack and the first rack, the second rack and the first rack are both meshed with the gear, and one end of the first rack and the second rack is fixed with a sliding rod, one end of the two sliding rods respectively slides through the two end surfaces of the transmission box and is respectively fixedly connected to the side surfaces of the side plates on the two positioning components.

[0009] Furthermore, the upper surface of the bottom support plate is in sliding contact with the bottom surface of the detection platform, the end surfaces of the bottom support plates on the two positioning assemblies abut against each other, an inductor is placed in the through groove, and the two bottom support plates hold up the inductor at the same time.

[0010] Furthermore, one end of the elastic telescopic tube is slidably matched with a telescopic rod, a spring is fixed between one end of the telescopic rod and the inner bottom wall of the elastic telescopic tube, the clamping plate is fixed to the end of the telescopic rod, and the top end of the clamping plate is bent toward the elastic telescopic tube.

[0011] Furthermore, an electric slide rail is fixedly mounted on the lower surface of the top plate, an electric telescopic rod is fixedly mounted on the slide seat of the electric slide rail, and the test head is fixedly mounted on the output end of the electric telescopic rod.

[0012] Furthermore, the electric slide rail, the electric telescopic rod and the test head are all electrically connected to the test instrument through wires, and the test instrument is provided with a display screen and a plurality of switch buttons.

[0013] Furthermore, the pin barrel is a hollow cylinder, and a copper sleeve is fixed to the inner wall of the pin barrel, and the copper sleeve is electrically connected to the test head through a wire.

[0014] Furthermore, a guide tube is fixed to the bottom end of the pin tube, and the guide tube is a trumpet-shaped structure.

[0015] Compared with the prior art, the beneficial effects of the utility model are:

[0016] 1. In the inductor testing device of the utility model example, the staff places the inductor in the through slot so that the pins on the inductor are vertically upward, the bottom support plates on the two positioning components lift the inductor from the bottom, and the clamping plates clamp and fix the inductor from both sides under the push of the elastic telescopic cylinder. The electric slide rail can drive the test head to move horizontally to the top of the inductor to be tested, and the electric telescopic rod drives the test head to move vertically downward, so that the two pins of the inductor slide into the two pin barrels through the guide barrel respectively and the copper sleeves therein contact each other. The test results of the inductor are displayed on the display screen on the test instrument, so as to realize continuous and stable testing of multiple inductors;

[0017] 2. In the inductor testing device of the example of the utility model, after all the inductors have been tested, the unqualified inductors are removed separately, and when removing the remaining inductors, it is only necessary to apply external force to one of the positioning components to pull the positioning component outward. Due to the meshing connection between the second rack, the gear and the first rack, when one of the positioning components moves laterally outward, the other positioning component will move laterally in the opposite direction synchronously, and the bottom support plates on the two positioning components will move away from each other. At this time, the lifting force on the bottom of the inductor and the clamping force on both sides disappear at the same time. Under the action of gravity, the inductor will automatically slide through the through slot into the material receiving box and be collected together, thereby realizing the rapid removal and collection of the inductors and improving the detection efficiency of the inductors. BRIEF DESCRIPTION OF THE DRAWINGS

[0018] Other features, objects and advantages of the present application will become more apparent by reading the detailed description of non-limiting embodiments made with reference to the following drawings:

[0019] Figure 1 It is a structural schematic diagram of the utility model;

[0020] Figure 2 It is a schematic diagram of the structure of the detection platform and the positioning assembly of the utility model when they are matched;

[0021] Figure 3 It is a structural schematic diagram of the utility model testing platform;

[0022] Figure 4 It is a structural schematic diagram of the positioning assembly of the utility model;

[0023] Figure 5 It is a cross-sectional view of the elastic telescopic cylinder of the utility model;

[0024] Figure 6 It is a structural schematic diagram of the pin barrel of the utility model;

[0025] Figure 7 It is a schematic diagram of the internal structure of the transmission box of the utility model.

[0026] In the figure, 1. base, 2. material receiving box, 3. testing table, 4. transmission box, 5. positioning assembly, 51. side plate, 52. bottom support plate, 53. elastic telescopic cylinder, 54. clamping plate, 55. positioning column, 56. tension spring, 57. telescopic rod, 58. spring, 6. top plate, 7. testing instrument, 8. electric slide rail, 9. electric telescopic rod, 10. test head, 11. pin cylinder, 12. through groove, 13. slide groove, 14. round groove, 15. guide cylinder, 16. gear, 17. first rack, 18. second rack, 19. slide rod, 20. inductor. DETAILED DESCRIPTION

[0027] The technical solution of the present utility model will be clearly and completely described below in conjunction with the accompanying drawings. Obviously, the described embodiments are only part of the embodiments of the present utility model, rather than all of the embodiments.

[0028] The components of the embodiments of the present invention generally described and shown in the drawings herein can be arranged and designed in various different configurations. Therefore, the following detailed description of the embodiments of the present invention provided in the drawings is not intended to limit the scope of the claimed invention, but merely represents selected embodiments of the present invention.

[0029] Based on the embodiments of the present utility model, all other embodiments obtained by ordinary technicians in the field without making any creative work shall fall within the scope of protection of the present utility model.

[0030] In the description of the present invention, it should be noted that the terms "center", "upper", "lower", "left", "right", "vertical", "horizontal", "inner", "outer", etc., indicating the orientation or positional relationship, are based on the orientation or positional relationship shown in the drawings, and are only for the convenience of describing the present invention and simplifying the description, rather than indicating or implying that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and therefore cannot be understood as limiting the present invention. In addition, the terms "first", "second", and "third" are used for descriptive purposes only, and cannot be understood as indicating or implying relative importance.

[0031] In the description of the present invention, it should be noted that, unless otherwise clearly specified and limited, the terms "installation", "connection" and "connection" should be understood in a broad sense, for example, it can be a fixed connection, a detachable connection, or an integral connection; it can be a mechanical connection or an electrical connection; it can be a direct connection, or it can be indirectly connected through an intermediate medium, or it can be the internal communication of two components. For ordinary technicians in this field, the specific meanings of the above terms in the present invention can be understood according to specific circumstances.

[0032] It should be noted that, in the absence of conflict, the embodiments and features in the embodiments of the present application can be combined with each other. It should also be noted that, for ease of description, only the parts related to the utility model are shown in the drawings.

[0033] Example: Reference Figure 1-7An inductor testing device shown in the figure comprises a base 1 and a testing instrument 7, wherein the testing instrument 7 adopts an inductor testing instrument in the prior art. A testing platform 3 is fixed on the top of the base 1, a top plate 6 is fixed on the top of the testing platform 3, a freely liftable testing head 10 is slidably fitted at the bottom of the top plate 6, two pin barrels 11 are arranged at the bottom of the testing head 10, a material receiving box 2 is slidably fitted on the upper surface of the base 1, transmission boxes 4 are arranged at both ends of the testing platform 3, and positioning components 5 are slidably fitted on both sides of the testing platform 3, and the two positioning components 5 are symmetrically arranged;

[0034] The positioning assembly 5 includes a side plate 51, a bottom support plate 52 is fixed to the bottom of the side plate 51, a plurality of elastic telescopic cylinders 53 are fixed to one side of the side plate 51, a clamping plate 54 is fixed to the telescopic end of the elastic telescopic cylinder 53, a plurality of through grooves 12 are provided on the detection platform 3, and slide grooves 13 are provided at positions on both sides of the through grooves 12 on the upper surface of the detection platform 3, the clamping plate 54 is slidably fitted in the slide grooves 13, a group of circular grooves 14 are provided on both sides of the detection platform 3, a group of positioning columns 55 are fixed to one side of the side plate 51, the positioning columns 55 are slidably fitted in the circular grooves 14, and a tension spring 56 is fixed between one end of the positioning column 55 and the bottom of the circular groove 14;

[0035] A gear 16 is rotatably connected in the transmission box 4, and the inner top surface and inner bottom surface of the transmission box 4 are respectively slidably matched with a second rack 18 and a first rack 17, the second rack 18 and the first rack 17 are both meshed and connected with the gear 16, and one end of the first rack 17 and the second rack 18 is fixed with a slide bar 19, one end of the two slide bars 19 slides through the two end surfaces of the transmission box 4 and is respectively fixedly connected to the side of the side plate 51 on the two positioning components 5, the upper surface of the bottom support plate 52 is in sliding contact with the bottom surface of the detection table 3, and the end surfaces of the bottom support plates 52 on the two positioning components 5 abut against each other, and an inductor 20 is placed in the through groove 12, and the two bottom support plates 52 simultaneously lift the inductor 20. The slide bars 19 in the two transmission boxes 4 are respectively fixedly connected to the two side surfaces of the side plates 51.

[0036] During the actual test of the device, the test head 10 can be moved to the top of the inductor 20 and move vertically downward, so that the pins of the inductor 20 clamped and fixed in the through slot 12 slide into the inside of the pin tube 11, and the test head 10 is electrically connected, so that the inductor 20 is connected to the test circuit of the test instrument 7, so that the test instrument 7 can detect the inductor 20. The setting of the tension spring 56 can make the side plate 51 close to the two side surfaces of the test platform 3. When the inductor 20 is placed in the through slot 12, the clamping plate 54 is squeezed, and the elastic telescopic tube 53 is compressed to generate elastic potential energy. The telescopic end of the elastic telescopic tube 53 will push the clamping plate 54 to squeeze the inductor 20. The mutual cooperation of the two positioning components 5 can make the two clamping plates 54 clamp and fix the inductor 20 from both sides. The bottom support plates 52 on the two positioning components 5 play a role in supporting the inductor 20, so that the inductor 20 can be placed in the through slot 12. When the inductor 20 is on the test platform 3, the bottom support plates 52 on the two positioning components 5 play a role in supporting the inductor 20, so that the inductor 20 can be placed in the through slot 12. After the clamped and fixed inductor 20 is detected, when one of the positioning components 5 is pulled outward, the slide bar 19 will slide outward. Since the first rack 17 and the second rack 18 are both meshed and connected with the gear 16, when the first rack 17 moves laterally with the slide bar 19, the second rack 18 will move laterally in the opposite direction through the transmission of the gear 16. Therefore, when one of the positioning components 5 moves laterally outward, the other positioning component 5 will move laterally in the opposite direction synchronously, and the bottom support plates 52 on the two positioning components 5 will move away from each other. At this time, the lifting force on the bottom of the inductor 20 and the clamping and fixing forces on both sides disappear at the same time. Under the action of gravity, the inductor 20 will automatically slide through the through slot 12 into the material receiving box 2 and be collected together, so as to realize the rapid removal and collection of the inductor 20. At this time, the tension spring 56 is stretched. When the external force on the positioning component 5 is removed, under the pull of the tension spring 56, the two positioning components 5 will automatically approach each other and move back to the initial position.

[0037] In order to stably clamp and fix the inductor 20 inside the through slot 12, in this embodiment, one end of the elastic telescopic tube 53 is slidably matched with a telescopic rod 57, a spring 58 is fixed between one end of the telescopic rod 57 and the inner bottom wall of the elastic telescopic tube 53, and a clamping plate 54 is fixed at the end of the telescopic rod 57, and the top of the clamping plate 54 is bent toward the elastic telescopic tube 53. When the inductor 20 is placed between the two clamping plates 54, the bottom of the inductor 20 will squeeze the bent part of the clamping plate 54, so that the two clamping plates 54 slide in the slide slot 13 and move away from each other. After the clamping plates 54 are squeezed, the spring 58 will generate elastic potential energy due to compression, and the telescopic rod 57 will push the clamping plate 54 to squeeze the inductor 20, so as to achieve the clamping and fixing of the inductor 20.

[0038] In order to enable the test head 10 to stably move to the position of the inductor 20 to be tested, in this embodiment, an electric slide rail 8 is fixedly installed on the lower surface of the top plate 6, an electric telescopic rod 9 is fixedly installed on the slide seat of the electric slide rail 8, and the test head 10 is fixedly installed on the output end of the electric telescopic rod 9. The electric slide rail 8, the electric telescopic rod 9 and the test head 10 are all electrically connected to the test instrument 7 through wires, and the test instrument 7 is provided with a display screen and multiple switch buttons. The electric slide rail 8 drives the electric telescopic rod 9 and the test head 10 to move to the top of the inductor 20, and the electric telescopic rod 9 pushes the test head 10 to move vertically downward, so that the pin of the inductor 20 enters the pin tube 11, so that the test instrument 7, the test head 10 and the inductor 20 form a closed detection circuit, and the inductor 20 is energized, so that the test instrument 7 can detect it. When the detection is completed, the electric telescopic rod 9 drives the test head 10 to move upward, and the electric slide rail 8 drives the electric telescopic rod 9 and the test head 10 to move to the top of the next inductor 20, and continues to detect the clamped and fixed inductor 20.

[0039] In order to ensure that the pins on the inductor 20 can be stably connected to the test head 10, in this embodiment, the pin barrel 11 is a hollow cylinder, and a copper sleeve is fixed to the inner wall of the pin barrel 11. The copper sleeve is electrically connected to the test head 10 through a wire, and a guide barrel 15 is fixed to the bottom of the pin barrel 11. The guide barrel 15 is a trumpet-shaped structure. The pins of the inductor 20 enter the guide barrel 15. Since the guide barrel 15 is a trumpet-shaped structure, the pins of the inductor 20 slide into the pin barrel 11 and make sliding contact with the copper sleeve under the guidance of the guide barrel 15, so that the test head 10 and the pins of the inductor 20 can be stably contacted.

[0040] Working principle: When in use, the inductor 20 is placed in the through slot 12 so that the pins on the inductor 20 are vertically upward, the clamping plates 54 on the two positioning components 5 clamp and fix the two sides of the inductor 20, and the bottom support plate 52 lifts the inductor 20 from the bottom, and the switch on the test instrument 7 is turned on. The electric slide rail 8 and the electric telescopic rod 9 cooperate to drive the test head 10 to move to the top of each inductor 20, and the pins on the inductor 20 slide into the pin tube 11 and contact with the copper sleeve to realize the detection of the inductor 20. When the inductor 20 is detected, one of the positioning components 5 is pulled outward, and the two positioning components 5 will move away from each other. The inductor 20 will automatically slide through the through slot 12 under the action of its own gravity and fall into the material receiving box 2 to be collected.

[0041] The above description is only a preferred embodiment of the present application and an explanation of the technical principles used. Those skilled in the art should understand that the scope of the utility model involved in the present application is not limited to the technical solution formed by a specific combination of the above technical features, but should also cover other technical solutions formed by any combination of the above technical features or their equivalent features without departing from the concept of the utility model. For example, the above features are replaced with the technical features with similar functions disclosed in the present application (but not limited to) by each other to form a technical solution.

[0042] Except for the technical features described in the specification, the other technical features are known technologies to those skilled in the art. In order to highlight the innovative features of the present utility model, the other technical features will not be described in detail here.

Claims

1. An inductor testing device, comprising a base (1) and a testing instrument (7), characterized in that: A test platform (3) is fixed on the top of the base (1), a top plate (6) is fixed on the top of the test platform (3), a freely liftable test head (10) is slidably engaged at the bottom of the top plate (6), two pin barrels (11) are provided at the bottom of the test head (10), a material receiving box (2) is slidably engaged on the upper surface of the base (1), transmission boxes (4) are provided at both ends of the test platform (3), and positioning components (5) are slidably engaged on both sides of the test platform (3), and the two positioning components (5) are symmetrically arranged; The positioning assembly (5) comprises a side plate (51), a bottom support plate (52) is fixed to the bottom of the side plate (51), a plurality of elastic telescopic cylinders (53) are fixed to one side of the side plate (51), a clamping plate (54) is fixed to the telescopic end of the elastic telescopic cylinder (53), a plurality of through grooves (12) are provided on the detection platform (3), and slide grooves (13) are provided at positions on both sides of the through grooves (12) on the upper surface of the detection platform (3), the clamping plate (54) is slidably fitted in the slide grooves (13), a group of circular grooves (14) are provided on both side surfaces of the detection platform (3), a group of positioning columns (55) are fixed to one side of the side plate (51), the positioning columns (55) are slidably fitted in the circular grooves (14), and a tension spring (56) is fixed between one end of the positioning column (55) and the bottom of the circular groove (14); A gear (16) is rotatably connected inside the transmission box (4), and a second rack (18) and a first rack (17) are slidably matched on the inner top surface and the inner bottom surface of the transmission box (4), respectively. The second rack (18) and the first rack (17) are both meshingly connected to the gear (16), and one end of the first rack (17) and the second rack (18) are fixed with a slide bar (19), and one end of the two slide bars (19) respectively slides through the two end surfaces of the transmission box (4) and is respectively fixedly connected to the side surfaces of the side plates (51) on the two positioning components (5).

2. The inductor testing device according to claim 1, characterized in that: The upper surface of the bottom support plate (52) is in sliding contact with the bottom surface of the detection platform (3), the end surfaces of the bottom support plates (52) on the two positioning assemblies (5) are in contact with each other, an inductor (20) is placed in the through groove (12), and the two bottom support plates (52) simultaneously support the inductor (20).

3. The inductor testing device according to claim 1, characterized in that: One end of the elastic telescopic tube (53) is slidably matched with a telescopic rod (57), a spring (58) is fixed between one end of the telescopic rod (57) and the inner bottom wall of the elastic telescopic tube (53), the clamping plate (54) is fixed to the end of the telescopic rod (57), and the top end of the clamping plate (54) is bent towards the elastic telescopic tube (53).

4. The inductor testing device according to claim 1, characterized in that: An electric slide rail (8) is fixedly mounted on the lower surface of the top plate (6), an electric telescopic rod (9) is fixedly mounted on the slide seat of the electric slide rail (8), and the test head (10) is fixedly mounted on the output end of the electric telescopic rod (9).

5. The inductor testing device according to claim 4, characterized in that: The electric slide rail (8), the electric telescopic rod (9) and the test head (10) are all electrically connected to the test instrument (7) via wires, and the test instrument (7) is provided with a display screen and a plurality of switch buttons.

6. The inductor testing device according to claim 1, characterized in that: The pin barrel (11) is a hollow cylinder, and a copper sleeve is fixed to the inner wall of the pin barrel (11), and the copper sleeve is electrically connected to the test head (10) via a wire.

7. The inductor testing device according to claim 6, characterized in that: A guide tube (15) is fixed to the bottom end of the pin tube (11), and the guide tube (15) is a trumpet-shaped structure.

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