Inductance value testing device with correction function

Abstract

The utility model discloses an inductance value testing device with a correction function. The inductance value testing device comprises an inductance correction mechanism and an inductance value detection module, the inductance correction mechanism comprises a pressing plate, a rotary twisting motor and a pressing clamping jaw; the pressing clamping jaw is provided with two twisting jaws extending downwards; the rotary twisting motor is erected on the workbench in a lifting mode and located over the inductance value detection station, the output end of the rotary twisting motor capable of rotating along the Z axis extends downwards, and the top face of the downward pressing clamping jaw is installed on the bottom face of the output end of the rotary twisting motor; the top of the pressing plate is installed on the side face of the downward pressing clamping jaw, and the bottom of the pressing plate extends downwards to the position between the two opposite faces of the two twisting jaws. The inductance correction mechanism eliminates the gap between the magnetic cores through extrusion, corrects the deviation of the magnetic cores through twisting, has an inductance value correction function, can improve the detection accuracy of the inductance value, and reduces the misjudgment phenomenon caused by inaccurate inductance value test.

Description

Technical Field

[0001] The utility model relates to the technical field of transformer production equipment, in particular to an inductance testing device with a correction function. Background Art

[0002] The transformer in the prior art is composed of a frame wrapped with enameled wire turns and a plurality of magnetic cores. The semi-finished transformer assembled by the turns, the frame and the magnetic cores not only needs to be encapsulated by glue filling, but also needs to be fixed by fixing parts before the finished transformer can be formed.

[0003] Before the semi-finished transformer is encapsulated by glue, the electrical performance of the semi-finished transformer must be tested first, so as to reduce the waste of labor and materials caused by defective products entering the glue encapsulation, and reduce the waste of materials and labor losses caused by rework and disassembly of defective products after glue encapsulation.

[0004] Since the semi-finished transformer is not encapsulated with glue, the electrical performance test cannot be carried out directly on the semi-finished transformer that has not been tightened.

[0005] The prior art uses a fixing clamp to clamp the top and bottom surfaces of a semi-finished transformer to be tested, and then performs an electrical performance test on the clamped semi-finished transformer.

[0006] Due to processing errors in the fixing clamps, or elastic deviations in some fixing clamps due to deformation, the magnetic core in the clamped semi-finished transformer to be tested is offset, or there is a gap between two adjacent magnetic cores, resulting in inaccurate inductance test values ​​of the semi-finished transformer during inductance testing, resulting in misjudgment, and a high proportion of misjudgment of unqualified inductance, and the phenomenon that the inductance test results do not conform to the actual quality status of the semi-finished transformer. Utility Model Content

[0007] In view of the above-mentioned shortcomings, the purpose of the utility model is to provide an inductance testing device with a correction function. The inductance correction mechanism with a correction function can eliminate the gap between the magnetic cores and correct the misalignment of the magnetic cores, thereby improving the accuracy of the inductance test of the semi-finished transformer and reducing the misjudgment rate.

[0008] To achieve this purpose, the utility model adopts the following technical solutions:

[0009] An inductance test device with a correction function is deployed near an inductance detection station to detect the inductance of a semi-finished product to be tested clamped by a fixing clamp, and includes an inductance correction mechanism and an inductance detection module;

[0010] The inductance correction mechanism includes a pressing plate, a rotating twisting motor and a pressing jaw; the pressing jaw is provided with two twisting jaws extending downward;

[0011] The rotary torsion motor can be raised and lowered on the workbench, the rotary torsion motor is located directly above the inductance detection station, the output end of the rotary torsion motor that can rotate along the Z axis extends downward, and the top surface of the pressing jaw is installed on the bottom surface of the output end of the rotary torsion motor;

[0012] The top of the pressing plate is mounted on the side of the pressing jaw, and the bottom of the pressing plate extends downward to between two opposite surfaces of the two twisting jaws;

[0013] The bottom surface of the pressing plate is used to press downward against the middle of the top surface of the semi-finished product to be inspected, and the two twisting claw clamps are used to clamp the two sides of the top of the semi-finished product to be inspected.

[0014] Specifically, the inductance detection module includes a detection frame, a telescopic cylinder, a detection module and a support plate;

[0015] The detection frame is mounted on the top surface of the workbench, the telescopic cylinder is mounted on the top of the detection frame, and the output end of the telescopic cylinder extends toward the inductance detection station; the support plate extending in the horizontal direction is mounted on the top of the output end of the telescopic cylinder, and the detection module is mounted on the top surface of the support plate;

[0016] The detection module is provided with two detection connection parts extending in a horizontal direction, and the detection connection parts are used to be electrically connected with two lead ends of the wire turns of the semi-finished product to be detected.

[0017] Furthermore, the inductance correction mechanism also includes a correction bracket, a correction sliding module, a guide rail, a suspension frame and a correction lifting cylinder; the correction sliding module includes a correction sliding motor, a correction sliding rail and a correction sliding plate;

[0018] The mounting plate is used to be mounted on the top surface of the central fixing plate located at the central part of the test rotating disk, and the bottom surface of the mounting plate is used to keep a gap with the top surface of the test rotating disk;

[0019] The correction bracket is mounted on the top surface of the mounting plate, and the correction sliding motor is installed on the top of the correction bracket;

[0020] The correction slide rail extends in the up-down direction, and the correction slide rail frame is mounted below the correction slide motor;

[0021] The correction slide is movably clamped on the correction slide rail; the output end of the correction slide motor is transmission-connected with the correction slide and drives the correction slide to slide up and down along the correction slide rail;

[0022] The guide rail is installed on the side of the correction slide facing the inductance detection station, and the guide rail extends in the up and down directions; the correction lifting cylinder is slidably mounted on the guide rail, and the output end of the correction lifting cylinder is fixed to the top of the guide rail; the suspension frame is installed on the side of the correction lifting cylinder facing the inductance detection station; the rotary torsion motor is mounted on the suspension frame.

[0023] Furthermore, it also includes a supporting component and a first supporting clamp;

[0024] The supporting assembly includes a supporting bracket, a supporting telescopic cylinder and a second supporting clamp;

[0025] The supporting bracket is mounted on the top surface of the mounting plate and is located below the correction slide rail; the supporting telescopic cylinder is mounted on the top surface of the supporting bracket, and the output end of the supporting telescopic cylinder extends toward the inductance detection station; the second supporting clamp is mounted on the end surface of the output end of the supporting telescopic cylinder facing the inductance detection station;

[0026] The first supporting clamp is a hollow annular body, the first supporting clamp is installed on the top surface of the supporting plate, the first supporting clamp surrounds the periphery of the detection module, and the portion of the first supporting clamp facing the inductance detection station protrudes from the detection connection portion;

[0027] The end of the first supporting clamp facing the inductance detection station is the first clamping portion; the first clamping portion is used to abut against the side of the semi-finished product to be detected away from the correction bracket; the end of the second supporting clamp facing the inductance detection station is the second clamping portion, and the second clamping portion is used to abut against the other side of the semi-finished product to be detected facing the correction bracket.

[0028] Preferably, the first clamping portion and the second clamping portion are both non-magnetic conductors.

[0029] Preferably, the correction sliding motor and the rotary twisting motor are both servo motors.

[0030] The beneficial effect of the technical solution of the utility model is as follows: the inductance testing device with correction function eliminates the gap between the magnetic cores through the squeezing effect of the pressure plate, and the rotation of the torsion motor cooperates with the downward pressing clamp to play a torsion effect to correct the deviation of the magnetic core, so that the inductance correction mechanism has the function of correcting the inductance of the semi-finished product to be tested in the test, which can improve the detection accuracy of the inductance, thereby reducing the occurrence of misjudgment caused by inaccurate inductance testing and reducing the proportion of misjudgment of the inductance. BRIEF DESCRIPTION OF THE DRAWINGS

[0031] Figure 1It is a schematic diagram of the installation structure of the inductance test device with correction function of the utility model;

[0032] Figure 2 It is a schematic diagram of the installation structure of the inductance correction mechanism and the supporting assembly of the utility model;

[0033] Figure 3 It is a schematic diagram of the installation structure of the detection module and the first supporting clamp;

[0034] Wherein: test rotating disk 1; inductance correction mechanism 2; supporting assembly 3; first supporting clamp 4; inductance detection module 5; mounting plate 6; inductance detection station 11; test product placement rack 12; correction bracket 20; correction sliding module 21; pressing plate 22; guide rail 23; correction lifting cylinder 24; rotating twisting motor 25; pressing jaw 26; hanging frame 27; supporting bracket 31; supporting telescopic cylinder 32; second supporting clamp 33; first clamping part 41; detection frame 51; telescopic cylinder 52; detection module 53; support plate 54; fixed clamp 101; semi-finished product to be tested 102; correction sliding motor 210; correction slide rail 211; correction slide plate 212; twisting claw clamp 261; second clamping part 331; detection connection part 531. DETAILED DESCRIPTION

[0035] The following is combined with Figure 1-3 The technical solution of the utility model is further illustrated by specific implementation methods.

[0036] The drawings are only used for illustrative purposes and should not be construed as limitations on this patent. In order to better illustrate this embodiment, some parts of the drawings may be omitted, enlarged, or reduced, and do not represent the size of the actual product. For those skilled in the art, it is understandable that some well-known structures and their descriptions in the drawings may be omitted.

[0037] In the description of the present invention, it should be noted that, unless otherwise clearly specified and limited, the terms "installation" 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 an indirect connection through an intermediate medium, which can be said to 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.

[0038] An inductance test device with a correction function, deployed near an inductance detection station 11 to detect the inductance of a semi-finished product 102 to be detected clamped by a fixing clamp 101, comprises an inductance correction mechanism 2 and an inductance detection module 5;

[0039] The inductance correction mechanism 2 includes a pressing plate 22, a rotating twisting motor 25 and a pressing jaw 26; the pressing jaw 26 is provided with two twisting jaws 261 extending downward;

[0040] The rotary torsion motor 25 can be raised and lowered on the workbench. The rotary torsion motor 25 is located directly above the inductance detection station 11. The output end of the rotary torsion motor 25 that can rotate along the Z axis extends downward. The top surface of the pressing jaw 26 is installed on the bottom surface of the output end of the rotary torsion motor 25.

[0041] The top of the pressing plate 22 is mounted on the side of the pressing jaw 26, and the bottom of the pressing plate 22 extends downward to between two opposite surfaces of the two twisting jaw clamps 261;

[0042] The bottom surface of the pressing plate 22 is used to press downward against the middle of the top surface of the semi-finished product 102 to be inspected, and the two twisting claw clamps 261 are used to clamp the two sides of the top of the semi-finished product 102 to be inspected.

[0043] Figure 1-3 The schematic diagram of the structure of the inductance test device with correction function of the utility model is shown in the figure. In the figure, the inductance detection station 11 is arranged on the top surface of the test rotating disk 1. The inductance detection station 11 is one of the multiple electrical performance detection stations located on the top surface of the test rotating disk 1. The multiple electrical performance detection stations are arranged at intervals along the edge of the top surface of the test rotating disk 1. The test rotating disk 1 rotates around the inductance correction mechanism 2. The inductance detection module 5 is one of the multiple electrical performance detection modules. The electrical performance detection modules correspond to the electrical performance detection stations one by one. The multiple electrical performance detection modules are arranged on the periphery of the test rotating disk 1.

[0044] In addition, the direction indicated by the X-axis in the figure is the length direction of the workbench, and the direction from the loading station of the test rotating disk 1 for inputting the semi-finished product 102 to be inspected to the unloading station for outputting the semi-finished product 102 to be inspected that has completed the test; the direction indicated by the Y-axis is the direction of the position of the inductance detection station 11 relative to the X-axis direction, and the direction indicated by the Z-axis arrow is the upward direction.

[0045] It should be noted that the semi-finished product 102 to be tested is a transformer semi-finished product whose top and bottom surfaces are clamped by the fixing clamps 101, and each station of the test rotating disk 1 is equipped with a test product placement rack 12 for placing the semi-finished product 102 to be tested, and the two lead ends of the turns of the semi-finished product 102 to be tested located at any electrical performance testing station extend outward in a direction away from the center point of the test rotating disk 1 so as to be electrically connected to the corresponding electrical performance testing module.

[0046] In the inductance test device with correction function of the utility model, when the two leads of the wire turns of the semi-finished product 102 to be tested at the inductance detection station 11 are electrically connected to the inductance detection module 5 and the inductance test is performed, the rotary torsion motor 25 descends, and the two torsion claw clamps 261 located below the pressing claw 26 open, and the bottom surface of the descending pressing plate 22 abuts against the top surface of the semi-finished product 102 to be tested at the inductance detection station 11, and the upper cover and the top magnetic core of the semi-finished product 102 to be tested are pressed downward together, and then the two torsion claw clamps 261 are closed to press the semi-finished product 102 to be tested. The top magnetic core is clamped, and then the rotating torsion motor 25 is rotated forward by one step, and then rotated backward by one step; in the above process, the inductance tester always maintains the detection of the inductance of the semi-finished product 102 to be detected in the inductance detection station 11. When the semi-finished product 102 to be detected is pressed by the pressing jaw 26, or the semi-finished product 102 to be detected is pressed by the pressing jaw 26 and the rotating torsion motor 25 is rotated, the inductance detection value of the semi-finished product 102 to be detected changes and meets the quality requirements, it can be considered that the inductance of the semi-finished product 102 to be detected meets the quality requirements and can be determined as a qualified product.

[0047] Specifically, the inductance detection module 5 includes a detection frame 51, a telescopic cylinder 52, a detection module 53 and a support plate 54;

[0048] The detection frame 51 is mounted on the top surface of the workbench, the telescopic cylinder 52 is installed on the top of the detection frame 51, and the output end of the telescopic cylinder 52 extends toward the inductance detection station 11; the support plate 54 extending in the horizontal direction is installed on the top of the output end of the telescopic cylinder 52, and the detection module 53 is installed on the top surface of the support plate 54;

[0049] The detection module 53 is provided with two detection connection parts 531 extending in the horizontal direction, and the detection connection parts 531 are used to be electrically connected with two lead ends of the turns of the semi-finished product 102 to be detected.

[0050] like Figure 1 and 3 As shown, the two detection connection parts 531 of the detection module 53 can connect the two lead ends of the wire turns of the semi-finished product 102 to be detected, so that the inductance detector can perform inductance performance detection on the semi-finished product 102 to be detected and determine whether the inductance detection result of the semi-finished product 102 to be detected is qualified.

[0051] Furthermore, the inductance correction mechanism 2 further includes a correction bracket 20, a correction sliding module 21, a guide rail 23, a suspension frame 27 and a correction lifting cylinder 24; the correction sliding module 21 includes a correction sliding motor 210, a correction sliding rail 211 and a correction sliding plate 212;

[0052] The mounting plate 6 is used to be mounted on the top surface of the central fixing plate located at the central part of the test rotating disk 1, and the bottom surface of the mounting plate 6 is used to keep a gap with the top surface of the test rotating disk 1;

[0053] The correction bracket 20 is mounted on the top surface of the mounting plate 6, and the correction sliding motor 210 is installed on the top of the correction bracket 20;

[0054] The correction slide rail 211 extends in the up-down direction, and the correction slide rail 211 is mounted below the correction slide motor 210;

[0055] The correction slide 212 is movably clamped on the correction slide rail 211; the output end of the correction slide motor 210 is transmission-connected with the correction slide 212, and drives the correction slide 212 to slide up and down along the correction slide rail 211;

[0056] The guide rail 23 is installed on the side of the correction slide 212 facing the inductance detection station 11, and the guide rail 23 extends in the up and down directions; the correction lifting cylinder 24 is slidably mounted on the guide rail 23, and the output end of the correction lifting cylinder 24 is fixed to the top of the guide rail 23; the suspension bracket 27 is installed on the side of the correction lifting cylinder 24 facing the inductance detection station 11; the rotary torsion motor 25 is mounted on the suspension bracket 27.

[0057] like Figure 1 and Figure 2 As shown, it should be noted that the rotation drive mechanism that drives the test rotating disk 1 includes a central fixed plate, a mounting plate 6 and a rotation drive motor; the rotation drive motor is installed on the top surface of the workbench, and a plurality of drive wheels arranged at intervals are provided on the periphery of the rotation drive motor; the central fixed plate is installed on the top surface of the rotation drive motor, and the test rotating disk 1 is mounted on the outer peripheral surface of the central fixed plate; the top surfaces of the plurality of drive wheels are indirectly transmitted to the bottom surface of the test rotating disk 1, and push the test rotating disk 1 to rotate around the central fixed plate.

[0058] Therefore, the mounting plate 6 mounted on the top surface of the central fixing plate will not rotate along with the test rotating disk 1, so that the inductance correction mechanism 2 can be kept aligned with the inductance detection station 11 in the detection state at all times.

[0059] Both the correction sliding motor 210 and the correction lifting cylinder 24 can be used to drive the rotary twisting motor 25 to rise and fall, which can increase the up and down stroke of the twisting claw clamp 261 and the pressure plate 22 to adapt to the inspection of semi-finished products 102 to be inspected with different height specifications, as well as the needs of component maintenance. By controlling the operating speed of the correction sliding motor 210 and the correction lifting cylinder 24, the pressure applied by the pressure plate 22 to the top of the semi-finished product 102 to be inspected can also be adjusted, thereby increasing the adjustability of the pressure applied by the inductance correction mechanism 2.

[0060] Furthermore, it also includes a supporting component 3 and a first supporting clamp 4;

[0061] The supporting assembly 3 includes a supporting bracket 31, a supporting telescopic cylinder 32 and a second supporting clamp 33;

[0062] The supporting bracket 31 is mounted on the top surface of the mounting plate 6 and is located below the correction slide rail 211; the supporting telescopic cylinder 32 is mounted on the top surface of the supporting bracket 31, and the output end of the supporting telescopic cylinder 32 extends toward the inductance detection station 11; the second supporting clamp 33 is mounted on the end surface of the output end of the supporting telescopic cylinder 3 facing the inductance detection station 11;

[0063] The first supporting clamp 4 is a hollow annular body, and the first supporting clamp 4 is installed on the top surface of the supporting plate 54. The first supporting clamp 4 surrounds the periphery of the detection module 53, and the portion of the first supporting clamp 4 facing the inductance detection station 11 protrudes from the detection connection portion 531;

[0064] The end of the first supporting clamp 4 facing the inductance detection station 11 is a first clamping portion 41; the first clamping portion 41 is used to abut against the side of the semi-finished product 102 to be detected away from the correction bracket 20; the end of the second supporting clamp 33 facing the inductance detection station 11 is a second clamping portion 331, and the second clamping portion 331 is used to abut against the other side of the semi-finished product 102 to be detected facing the correction bracket 20.

[0065] like Figure 1-3 As shown, when the bottom surface of the pressing plate 22 is against the top surface of the semi-finished product 102 to be detected located at the inductance detection station 11, the upper cover and the top magnetic core on the top of the semi-finished product 102 to be detected are pressed downward, and then the two twisting claw clamps 261 are closed to clamp the top outer shell and the top magnetic core of the semi-finished product 102 to be detected. Before the rotating twisting motor 25 rotates, the two outer side surfaces of the skeleton wrapped with wire turns of the semi-finished product 102 to be detected are clamped by the first supporting clamp 4 and the second supporting clamp 33 respectively, so as to prevent the skeleton from rotating with the rotating twisting motor 25, thereby ensuring the adjustment effect of the inductance correction mechanism 2 on the core deviation or the gap between the cores in the semi-finished product 102 to be detected.

[0066] Preferably, the first clamping portion 41 and the second clamping portion 331 are both non-magnetic conductors.

[0067] In this way, the magnetic flux of the magnetic core in the semi-finished product 102 to be tested can be avoided during the absorption test, thereby avoiding affecting the test accuracy of the inductance of the semi-finished product 102 to be tested.

[0068] Preferably, the correction sliding motor 210 and the rotary twisting motor 25 are both servo motors.

[0069] The servo motor is an indirect speed-changing device with the advantages of controllable speed and precise operating position. It can also convert voltage signals into torque and speed to drive the controlled object.

[0070] In summary, if Figure 1-3 In the embodiment of the utility model shown, the inductance testing device with correction function eliminates the gap between the magnetic cores through the squeezing action of the pressing plate 22, and rotates the torsion motor 25 to cooperate with the pressing jaw 26 to exert a torsion action to correct the misalignment of the magnetic core, so that the inductance correction mechanism 2 has the function of correcting the inductance of the semi-finished product 102 to be tested in the test, which can improve the detection accuracy of the inductance, thereby reducing the occurrence of misjudgment caused by inaccurate inductance testing and reducing the proportion of misjudgment of the inductance.

[0071] The technical principle of the present invention is described above in combination with specific embodiments. These descriptions are only for explaining the principle of the present invention and cannot be interpreted as limiting the protection scope of the present invention in any way. Based on the explanations here, technicians in this field can think of other specific implementation methods of the present invention without creative work, and these methods will fall within the protection scope of the present invention.

Claims

1. An inductance test device with a correction function, arranged near an inductance detection station to detect the inductance of a semi-finished product to be tested clamped by a fixing clamp, characterized in that: It includes an inductance correction mechanism and an inductance detection module; The inductance correction mechanism includes a pressing plate, a rotating twisting motor and a pressing jaw; the pressing jaw is provided with two twisting jaws extending downward; The rotary torsion motor can be raised and lowered on the workbench, the rotary torsion motor is located directly above the inductance detection station, the output end of the rotary torsion motor that can rotate along the Z axis extends downward, and the top surface of the pressing jaw is installed on the bottom surface of the output end of the rotary torsion motor; The top of the pressing plate is mounted on the side of the pressing jaw, and the bottom of the pressing plate extends downward to between two opposite surfaces of the two twisting jaws; The bottom surface of the pressing plate is used to press downward against the middle of the top surface of the semi-finished product to be inspected, and the two twisting claw clamps are used to clamp the two sides of the top of the semi-finished product to be inspected; The inductance detection module includes a detection frame, a telescopic cylinder, a detection module and a support plate; The detection frame is mounted on the top surface of the workbench, the telescopic cylinder is mounted on the top of the detection frame, and the output end of the telescopic cylinder extends toward the inductance detection station; the support plate extending in the horizontal direction is mounted on the top of the output end of the telescopic cylinder, and the detection module is mounted on the top surface of the support plate; The detection module is provided with two detection connection parts extending in a horizontal direction, and the detection connection parts are used to be electrically connected with two lead ends of the wire turns of the semi-finished product to be detected.

2. The inductance test device with correction function according to claim 1, characterized in that: The inductance correction mechanism also includes a correction bracket, a correction sliding module, a guide rail, a suspension frame and a correction lifting cylinder; the correction sliding module includes a correction sliding motor, a correction sliding rail and a correction sliding plate; The mounting plate is used to be mounted on the top surface of the central fixing plate located at the central part of the test rotating disk, and the bottom surface of the mounting plate is used to keep a gap with the top surface of the test rotating disk; The correction bracket is mounted on the top surface of the mounting plate, and the correction sliding motor is installed on the top of the correction bracket; The correction slide rail extends in the up-down direction, and the correction slide rail frame is mounted below the correction slide motor; The correction slide is movably clamped on the correction slide rail; the output end of the correction slide motor is transmission-connected with the correction slide and drives the correction slide to slide up and down along the correction slide rail; The guide rail is installed on the side of the correction slide facing the inductance detection station, and the guide rail extends in the up and down directions; the correction lifting cylinder is slidably mounted on the guide rail, and the output end of the correction lifting cylinder is fixed to the top of the guide rail; the suspension frame is installed on the side of the correction lifting cylinder facing the inductance detection station; the rotary torsion motor is mounted on the suspension frame.

3. The inductance test device with correction function according to claim 2, characterized in that: Also included is a support assembly and a first support clamp; The supporting assembly includes a supporting bracket, a supporting telescopic cylinder and a second supporting clamp; The supporting bracket is mounted on the top surface of the mounting plate and is located below the correction slide rail; the supporting telescopic cylinder is mounted on the top surface of the supporting bracket, and the output end of the supporting telescopic cylinder extends toward the inductance detection station; the second supporting clamp is mounted on the end surface of the output end of the supporting telescopic cylinder facing the inductance detection station; The first supporting clamp is a hollow annular body, the first supporting clamp is installed on the top surface of the supporting plate, the first supporting clamp surrounds the periphery of the detection module, and the portion of the first supporting clamp facing the inductance detection station protrudes from the detection connection portion; The end of the first supporting clamp facing the inductance detection station is the first clamping portion; the first clamping portion is used to abut against the side of the semi-finished product to be detected away from the correction bracket; the end of the second supporting clamp facing the inductance detection station is the second clamping portion, and the second clamping portion is used to abut against the other side of the semi-finished product to be detected facing the correction bracket.

4. The inductance test device with correction function according to claim 3, characterized in that: The first clamping portion and the second clamping portion are both non-magnetic conductors.

5. The inductance test device with correction function according to claim 3, characterized in that: The correction sliding motor and the rotation twisting motor are both servo motors.

Images