Coil test equipment

Abstract

The utility model relates to the technical field of electronic circuit equipment, and discloses coil testing equipment, which comprises a testing machine base, the middle part of the top end of the testing machine base is fixedly connected with a supporting bottom plate, the front end of the supporting bottom plate is fixedly connected with a fixing plate, and the front end of the fixing plate is rotatably connected with an adjusting gear. A limiting assembly is arranged in the fixing plate, a sliding rod is slidably connected to the interior of the limiting assembly, a supporting plate is fixedly connected to the exterior of the sliding rod, the limiting assembly can limit the sliding rod, and a transmission gear is rotationally connected to the left side of the front end of the fixing plate. According to the utility model, coils with different inner diameters and outer diameters can be adapted, tight contact between a test probe or a clamp and the coil is ensured, the coil is further rapidly assembled and disassembled, the preparation time and the debugging time before testing are reduced, the testing efficiency on a production line is greatly improved, a cable can be fixed, and the influence on a test result is avoided.

Description

Technical Field

[0001] The utility model relates to the technical field of electronic circuit devices, in particular to a coil testing device. Background Art

[0002] A coil testing device is a tool used to measure and evaluate the characteristics of inductive coils. Coil devices are common components in current electronic circuit systems. Components such as inductors or transformers wound with coils all fall within the scope of coil devices. For the electrical performance testing of coil devices, conventional testing items include the following several types: inductance, capacitance value, DC resistance, quality factor, no-load voltage, no-load current, impedance, turns ratio, insulation resistance, and insulation withstand voltage, etc.

[0003] In the prior art, most of the testing devices are connected to the coil device through cables during use, and the connection methods of different coil devices are also different. Therefore, if the coil device to be tested is replaced, multiple cables need to be manually reconnected. This process is inefficient and wastes a lot of manpower. For this reason, a coil testing device is proposed to solve the above problems. Summary of the Utility Model

[0004] In order to make up for the above deficiencies, the utility model provides a coil testing device, aiming to improve the problem that when replacing the coil device to be tested in the prior art, multiple cables need to be manually reconnected, which is inefficient and wastes a lot of manpower.

[0005] In order to achieve the above purpose, the utility model adopts the following technical scheme:

[0006] A coil testing device includes a testing machine base. The middle of the top end of the testing machine base is fixedly connected with a support bottom plate. The front end of the support bottom plate is fixedly connected with a fixing plate. The front end of the fixing plate is rotatably connected with an adjusting gear. A limiting component is arranged inside the fixing plate. A sliding rod is slidably connected inside the limiting component. A support plate is fixedly connected to the outside of the sliding rod. The limiting component can limit the sliding rod. The left side of the front end of the fixing plate is rotatably connected with a transmission gear. A locking component is arranged on the left side of the top of the testing machine base. The locking component can fix the cable.

[0007] As a further description of the above technical solution:

[0008] The limiting component includes a plurality of limiting grooves opened inside the adjusting gear. A plurality of sliding grooves are opened inside the fixing plate. A limiting rod is fixedly connected to the front end of the sliding rod.

[0009] As a further description of the above technical solution:

[0010] The outer portion of the sliding rod is slidably connected to the inner wall of the sliding groove, and the outer portion of the limiting rod is slidably connected to the inner wall of the limiting groove;

[0011] As a further description of the above technical solution:

[0012] The outer teeth of the adjusting gear are meshed with the outer teeth of the transmission gear, and the bottom of the supporting plate is in contact with the outer portion of the fixing plate;

[0013] As a further description of the above technical solution:

[0014] A connecting frame is fixedly connected to the left side of the top of the testing machine base, a fixing ring is fixedly connected to the inside of the connecting frame, and a through hole is opened on the right side of the fixing ring;

[0015] As a further description of the above technical solution:

[0016] The locking assembly includes a positioning ring, the outer portion of the positioning ring is fixedly connected to the inner portion of the fixing collar, the left side of the positioning ring is fixedly connected to an elastic plate, and the left side of the fixing collar is threadedly connected to a locking collar;

[0017] As a further description of the above technical solution:

[0018] A support frame is fixedly connected to the right side of the top of the test machine base, and a test head is fixedly connected to the left end of the support frame;

[0019] As a further description of the above technical solution:

[0020] The front end of the test machine base is fixedly connected with a connection wire hole, and the front end of the test machine base is fixedly connected with a display panel.

[0021] The utility model has the following beneficial effects:

[0022] 1. In the present invention, the adjusting gear can be driven to rotate by toggling the transmission gear, and the limiting rod can be pushed through the internal limiting groove to adjust the outward expansion of the sliding rod, which can adapt to coils with different inner and outer diameters, ensuring close contact between the test probe or fixture and the coil, and further quickly loading and unloading the coil, reducing the preparation time and debugging time before testing, and greatly improving the testing efficiency on the production line.

[0023] 2. In the present invention, the cable on one side of the coil is placed inside the elastic plate, then passed through the through hole, and the locking ring is tightened on the outside of the fixing ring to fix the cable and avoid affecting the test results. BRIEF DESCRIPTION OF THE DRAWINGS

[0024] Figure 1This is a three-dimensional schematic diagram of a coil testing device proposed in the utility model;

[0025] Figure 2 This is a structural schematic diagram of a support base plate of a coil testing device proposed in the present invention;

[0026] Figure 3 This is a structural schematic diagram of a limit rod of a coil testing device proposed in the present invention;

[0027] Figure 4 This is a structural schematic diagram of a fixed collar of a coil testing device proposed in the present invention;

[0028] Figure 5 This is a structural schematic diagram of an elastic plate of a coil testing device proposed in the present invention.

[0029] Legend:

[0030] 1. Test machine base; 2. Support base plate; 3. Fixed plate; 4. Adjusting gear; 5. Limiting slot; 6. Sliding slot; 7. Sliding rod; 8. Limiting rod; 9. Support plate; 10. Transmission gear; 11. Connecting frame; 12. Fixed collar; 13. Positioning ring; 14. Elastic plate; 15. Locking collar; 16. Through hole; 17. Support frame; 18. Test head. DETAILED DESCRIPTION

[0031] The following will be combined with the drawings in the embodiments of the present invention to clearly and completely describe the technical solutions in the embodiments of the present invention. Obviously, the embodiments described are only part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without making creative efforts are within the scope of protection of the present invention.

[0032] Reference Figures 1 - 3 The utility model provides an embodiment: a coil testing device, including a testing machine base 1. First, the testing machine base 1 is placed in a suitable position. The middle of the top of the testing machine base 1 is fixedly connected to the supporting base plate 2. The front end of the supporting base plate 2 is fixedly connected to the fixing plate 3. The front end of the fixing plate 3 is rotatably connected to the transmission gear 10 on the left side. Take out the coil, and turn the transmission gear 10 to the right according to the inner diameter of the coil. The front end of the fixing plate 3 is rotatably connected to the adjusting gear 4. The external teeth of the adjusting gear 4 are meshed with the external teeth of the transmission gear 10. The adjusting gear 4 rotates under the toggling of the transmission gear 10.

[0033] Inside the fixed plate 3, a limiting component is provided. A sliding rod 7 is slidably connected inside the limiting component. The limiting component includes a plurality of limiting grooves 5 which are opened inside the adjusting gear 4. The front end of the sliding rod 7 is fixedly connected with a limiting rod 8. As the adjusting gear 4 rotates, the limiting grooves 5 inside it will drive the limiting rod 8 to move. A plurality of sliding grooves 6 are opened inside the fixed plate 3. The limiting component can limit the sliding rod 7. The outer part of the sliding rod 7 is slidably connected to the inner wall of the sliding groove 6. The sliding groove 6 can limit the sliding rod 7. The outer part of the limiting rod 8 is slidably connected to the inner wall of the limiting groove 5. The limiting rod 8 can limit the limiting groove 5.

[0034] The limiting rod 8 slides on the inner wall of the limiting groove 5 and can drive the sliding rod 7 to slide outwards on the inner wall of the sliding groove 6. The outer part of the sliding rod 7 is fixedly connected with a support plate 9. The bottom of the support plate 9 is in contact with the outside of the fixed plate 3. At this time, the support plate 9 unfolds outwards, which can increase the diameter of the support to fix the coil, can adapt to coils with different inner diameters and outer diameters, ensures the close contact between the test probe or fixture and the coil, further enables the rapid loading and unloading of the coil, reduces the preparation time and debugging time before testing, and greatly improves the testing efficiency on the production line;

[0035] Refer to Figure 1 、 Figure 4 And Figure 5 As shown in, on the left side of the top of the test machine base 1, a connecting frame 11 is fixedly connected. Inside the connecting frame 11, a fixed collar 12 is fixedly connected. A through hole 16 is opened on the right side of the fixed collar 12. The redundant cable outside the coil is passed through the inside of the through hole 16. On the left side of the top of the test machine base 1, a locking component is provided. The locking component can fix the cable. The locking component includes a positioning ring 13. The outer part of the positioning ring 13 is fixedly connected inside the fixed collar 12. A spring plate 14 is fixedly connected to the left side of the positioning ring 13. After the cable enters the inside of the positioning ring 13, it continues to pass through the spring plate 14. The left side outside of the fixed collar 12 is threadedly connected with a locking collar 15. The cable is pulled out from the left side of the locking collar 15.

[0036] Then the locking collar 15 is tightened on the outside of the fixed collar 12. During the rotation of the locking collar 15, it will squeeze the spring plate 14, making the spring plate 14 press tightly against the outside of the cable, which can fix the cable and avoid affecting the test results. On the right side of the top of the test machine base 1, a support frame 17 is fixedly connected. The left end of the support frame 17 is fixedly connected with a test head 18. The front end of the test machine base 1 is fixedly connected with a connection hole for the wire. The external wire is connected to the connection hole for the wire. The front end of the test machine base 1 is fixedly connected with a display board. The coil is detected by the test head 18, and the detection information is read by the display board.

[0037] Working principle: First, place the testing machine base 1 in a suitable position, then take out the coil, and move the transmission gear 10 to the right according to the inner diameter of the coil. Under the movement of the transmission gear 10, the adjustment gear 4 rotates. As the adjustment gear 4 rotates, the internal limit groove 5 will drive the limit rod 8 to move. The limit rod 8 slides on the inner wall of the limit groove 5 and can drive the sliding rod 7 to slide outward on the inner wall of the sliding groove 6. At this time, the support plate 9 expands outward, which can increase the diameter of the support and fix the coil.

[0038] Then, pass the excess cable outside the coil through the inside of the through hole 16, and after the cable enters the inside of the positioning ring 13, continue to pass through the elastic plate 14, and then pull the cable out from the left side of the locking ring 15, and then tighten the locking ring 15 to the outside of the fixing ring 12. During the rotation process, the locking ring 15 will squeeze the elastic plate 14, so that the elastic plate 14 and the outside of the cable are pressed tightly, which can fix the cable. Then connect the external wire to the connecting wire hole, use the test head 18 to test the coil, and use the display panel to read the test information.

[0039] Finally, it should be noted that the above is only a preferred embodiment of the present invention and is not intended to limit the present invention. Although the present invention has been described in detail with reference to the aforementioned embodiments, those skilled in the art can still modify the technical solutions described in the aforementioned embodiments or make equivalent replacements for some of the technical features therein. Any modifications, equivalent replacements, improvements, etc. made within the spirit and principles of the present invention should be included in the scope of protection of the present invention.

Claims

1. A coil testing device, comprising a testing machine base (1), characterized in that: At the middle of the top end of the test machine base (1), a support bottom plate (2) is fixedly connected. At the front end of the support bottom plate (2), a fixed plate (3) is fixedly connected. At the front end of the fixed plate (3), an adjusting gear (4) is rotatably connected. Inside the fixed plate (3), a limiting component is arranged. Inside the limiting component, a sliding rod (7) is slidably connected. Outside the sliding rod (7), a support plate (9) is fixedly connected. The limiting component can limit the sliding rod (7). At the left side of the front end of the fixed plate (3), a transmission gear (10) is rotatably connected. At the left side of the top of the test machine base (1), a locking component is arranged. The locking component can fix the cable.

2. The coil testing device according to claim 1, characterized in that: The limiting component includes a plurality of limiting grooves (5). The limiting grooves (5) are opened inside the adjusting gear (4). Inside the fixed plate (3), a plurality of sliding grooves (6) are opened. At the front end of the sliding rod (7), a limiting rod (8) is fixedly connected.

3. The coil testing device according to claim 2, characterized in that: Outside the sliding rod (7), it is slidably connected to the inner wall of the sliding groove (6). Outside the limiting rod (8), it is slidably connected to the inner wall of the limiting groove (5).

4. A coil testing device according to claim 2, characterized in that: The external teeth of the adjusting gear (4) are meshed with the external teeth of the transmission gear (10). The bottom of the support plate (9) is in contact with the outside of the fixed plate (3).

5. A coil testing device according to claim 1, characterized in that: At the left side of the top of the test machine base (1), a connecting frame (11) is fixedly connected. Inside the connecting frame (11), a fixed collar (12) is fixedly connected. At the right side of the fixed collar (12), a through hole (16) is opened.

6. The coil testing device according to claim 5, wherein: The locking component includes a positioning ring (13). The outside of the positioning ring (13) is fixedly connected inside the fixed collar (12). At the left side of the positioning ring (13), an elastic plate (14) is fixedly connected. At the left side outside of the fixed collar (12), a locking collar (15) is threadedly connected.

7. A coil testing device according to claim 1, characterized in that: At the right side of the top of the test machine base (1), a support frame (17) is fixedly connected. At the left end of the support frame (17), a test head (18) is fixedly connected.

8. The coil testing device according to claim 1, wherein: At the front end of the test machine base (1), a connection wire hole is fixedly connected. At the front end of the test machine base (1), a display board is fixedly connected.

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