Magnetic core buckle closing force testing device and method

Abstract

The present invention relates to the technical field of magnetic core manufacturing, and specifically proposes a magnetic core buckle closing force testing device and method. The magnetic core buckle closing force testing device includes a support frame, a debugging platform, a pressure sensor, a force transmission component and a pressure member; the debugging platform and the support frame enclose an accommodating space, and a pressure sensor and a force transmission component are installed inside; the force transmission component has a first pressing part and a second pressing part, both of which are located on the same horizontal plane as the upper surface of the debugging platform, and are used to place the magnetic core buckle, the first pressing part and the second pressing part are pressed and connected with the two ends of the magnetic core buckle, and the pressure member is used to press downward on the middle arched part of the magnetic core buckle. In the present invention, the closing force of the magnetic core buckle to be tested is converted into pressure, which is convenient to test and easy to quantify, providing a basis for selecting the magnetic core buckle; in addition, the excess pressure applied by the pressure member will be borne by the debugging platform, so the pressure obtained by the pressure sensor is only related to the force generated by the deformation of the magnetic core buckle, and the measurement is accurate.

Description

Technical Field

[0001] The invention relates to the technical field of magnetic core manufacturing, and specifically proposes a magnetic core buckle closing force testing device and method. Background Art

[0002] A magnetic core refers to a magnetic conductor set in the magnetic circuit of an inductor coil. It is often used in electronic devices and can be used to store energy or as a medium for electromagnetic conversion.

[0003] In the related art, open-circuit magnetic cores are usually used in pairs, which require the use of magnetic core buckles to complete the assembly of a pair of magnetic cores. However, the closing force of the magnetic core buckles directly affects the effect of magnetic core pairing. When the closing force is insufficient, the magnetic cores will have a poor fit, thereby affecting the performance of the electronic device.

[0004] However, in the relevant industry, the closing force standard for core buckles is not clear and difficult to quantify. Most people select core buckles based on intuitive feeling, which may easily lead to insufficient closing force of the core buckles, affecting the performance of the core and electronic equipment. Summary of the invention

[0005] The purpose of the present invention is to solve at least part of the technical problems mentioned above, and this purpose is achieved through the following technical solutions:

[0006] In the first aspect, the present invention proposes a magnetic core buckle closing force testing device, which includes a support frame, a debugging platform, a pressure sensor, a force transmission component and a pressure piece; the debugging platform is connected to the support frame along a first direction, and the debugging platform and the support frame form an accommodating space, in which the pressure sensor and the force transmission component are installed in sequence from bottom to top; the force transmission component has a first pressing part and a second pressing part, and the first pressing part and the second pressing part are respectively located on both sides of the debugging platform in the second direction, and the upper surfaces of the first pressing part, the second pressing part and the debugging platform are located in the same horizontal plane and form a supporting surface; the supporting surface is used to place the magnetic core buckle, and the first pressing part and the second pressing part are respectively pressed and connected with the two ends of the magnetic core buckle, and the pressure piece is movably arranged above the supporting surface, and the pressure piece is used to press downward the middle arched part of the magnetic core buckle and deform it to fit with the debugging platform; wherein the first direction, the second direction and the up and down directions are perpendicular to each other.

[0007] In some embodiments, the force transmission component includes a base, a first adjustment block and a second adjustment block; the base is pressed and connected to the pressure sensor, the first adjustment block and the second adjustment block are respectively pressed and connected to the two ends of the base in the second direction, and the first adjustment block and the second adjustment block are respectively movably arranged along the second direction; the upper parts of the first adjustment block and the second adjustment block respectively constitute the first pressing part and the second pressing part.

[0008] In some embodiments, the base is provided with a first adjustment groove and a second adjustment groove distributed along the second direction at both ends of the base in the second direction, and the lower parts of the first adjustment block and the second adjustment block are movably connected to the first adjustment groove and the second adjustment groove, respectively.

[0009] In some embodiments, the base is provided with a first reference line distributed along a first direction, and the first adjustment block and the second adjustment block are symmetrically arranged relative to the first reference line.

[0010] In some embodiments, the upper surfaces of the first adjustment block and the second adjustment block are respectively provided with a second reference line and a third reference line distributed along the second direction, and the second reference line is aligned with the third reference line; the magnetic core buckle is aligned with the second reference line and / or the third reference line.

[0011] In some embodiments, the debugging platform is connected to the support frame so as to be movable up and down, and can be locked to the support frame.

[0012] In some embodiments, the support frame includes a base, a screw and a nut; there are two screws, and the two screws are respectively erected at the two ends of the base in the first direction along the up and down directions, and the two screws are respectively passed through the two ends of the debugging platform in the first direction; each screw is threaded with two nuts, and the two nuts lock its ends on the upper and lower sides of the debugging platform respectively.

[0013] In some embodiments, the pressure member includes an elastic pressure head, and the elastic pressure head can be pressed against the middle part of the magnetic core buckle.

[0014] In a second aspect, the present invention further proposes a method for testing the closing force of a magnetic core buckle, which uses the magnetic core buckle closing force testing device of the first aspect, and comprises the following steps:

[0015] Place the magnetic core buckle on the supporting surface, and make its two ends contact the upper surface of the first pressing part and the second pressing part respectively;

[0016] Using a pressure piece to press downward on the arched part in the middle of the magnetic core buckle to deform it;

[0017] Gradually increase the pressure until the middle of the core buckle fits against the debugging platform, and the pressure sensor obtains the pressure value at this time;

[0018] The pressure sensor transmits the pressure value to the calculation unit, and the closing force value is obtained after analysis.

[0019] In some embodiments, the step of “placing the magnetic core buckle on the supporting surface and making its two ends contact the upper surfaces of the first pressing portion and the second pressing portion respectively” also includes the following steps:

[0020] Adjust the position of the debugging platform in the up-down direction so that the upper surface thereof and the upper surfaces of the first pressing portion and the second pressing portion are located at the same horizontal plane;

[0021] The positions of the first pressing portion and the second pressing portion in the second direction are adjusted so that the two are symmetrical with respect to the debugging platform.

[0022] The technical solution provided by the present invention has at least the following technical effects:

[0023] In the present invention, the closing force of the magnetic core buckle to be tested is converted into pressure, which is easy to obtain and can achieve the purpose of quantifying the closing force of the magnetic core buckle, thereby providing a basis for the selection of the magnetic core buckle and reducing the occurrence of magnetic core and electronic equipment failures; in addition, the pressure sensor will only bear the pressure transmitted by the first pressing part and the second pressing part, that is, the force generated by the deformation of the magnetic core buckle, and the excess pressure applied by the pressure member will be borne by the debugging platform. Therefore, the pressure obtained by the pressure sensor is only related to the force generated by the deformation of the magnetic core buckle, so that the final closing force value obtained is more accurate. BRIEF DESCRIPTION OF THE DRAWINGS

[0024] In order to better combine the contents shown in the drawings of the specification with the contents described in the specific implementation methods, the drawings of the specification are briefly introduced below. It can be understood that the drawings of the specification mentioned below only schematically show some embodiments of the relevant technical solutions and the technical solutions of the present invention. Without paying creative labor, those skilled in the art can also make drawings showing other embodiments.

[0025] Specifically, the annotations of the drawings in the specification are as follows:

[0026] Figure 1 It is a structural schematic diagram of a magnetic core buckle closing force testing device according to some embodiments of the present invention;

[0027] Figure 2 It is a schematic diagram of the structure of the force transmission assembly described in some embodiments of the present invention;

[0028] Figure 3 It is a schematic diagram of the structure of the base platform described in some embodiments of the present invention;

[0029] Figure 4 It is a schematic diagram of the structure of the magnetic core buckle described in some embodiments of the present invention;

[0030] Figure 5 It is a schematic diagram of the structure of the base described in some embodiments of the present invention;

[0031] Figure 6 It is a schematic diagram of the structure of the pressure sensor according to some embodiments of the present invention;

[0032] Figure 7 It is a schematic structural diagram of the pressure-applying member described in some embodiments of the present invention.

[0033] Specifically, the annotations of the accompanying drawings in the specification are as follows:

[0034] 100, magnetic core buckle closing force testing device; 110, support frame; 111, base; 112, screw; 113, nut; 120, debugging table; 130, pressure sensor; 131, sensor body; 132, first positioning rod; 133, second positioning rod; 140, force transmission component; 141, base; 142, first adjustment block; 143, second adjustment block; 150, pressure member; 151, elastic pressure head; A, magnetic core buckle; a1, side foot; a2, spring piece; B1, first pressing part; B2, second pressing part; C1, first adjustment slot; C2, second adjustment slot; C3, first positioning hole; D1, first reference line; D2, second reference line; D3, third reference line; E1, mounting hole; E2, second positioning hole; E3, limit slot; X, first direction; Y, second direction; Z, up and down direction. DETAILED DESCRIPTION

[0035] In order to make the contents of the embodiments of the present invention clearer, the following description will be made in conjunction with the accompanying drawings. It can be understood that the contents mentioned below are only some embodiments of the present invention, and all embodiments are listed in detail. Therefore, without paying creative work, other embodiments obtained based on the following embodiments fall within the protection scope of the present invention.

[0036] It should be understood that the terms used herein are only for the purpose of describing specific embodiments and are not intended to strictly limit the technical solutions unless the context clearly indicates otherwise. For example, the use of "a", "an" and "the" to modify a feature does not exclude that the feature may also be plural in other embodiments.

[0037] It should be understood that the terms "include", "comprises", and "have" are open ended, indicating the presence of the stated features, but not excluding the possibility of other features in the embodiment. Similarly, the use of the terms first, second, etc. in the text to describe multiple features only means to distinguish one feature from another feature, and unless the context clearly indicates otherwise, such terms do not imply a sequence or order.

[0038] It should be understood that, unless the context clearly indicates otherwise, the terms "dispose", "connect", and "install" should be understood in a broad sense, for example, they can be fixedly connected, detachably connected, or integrally connected; they can be directly connected or indirectly connected through a medium. For those skilled in the art, the specific meanings of the above terms in the text can be understood according to the specific circumstances.

[0039] In addition, for the convenience of description, the text will use terms of spatial relative relationships to illustrate the position of one feature relative to another feature, for example, "inside", "outside", "end", "side", "top", "middle", "bottom", "high", "low", "axial", "circumferential", "radial", "horizontal", "vertical", "first direction", "second direction", etc. It can be understood that the spatial relative relationship between two features should include other specific situations in addition to those shown in the drawings of the specification.

[0040] The embodiments of the present invention are described below in conjunction with the accompanying drawings.

[0041] First, refer to Figure 1 The present invention proposes a magnetic core buckle closing force testing device 100, which includes a support frame 110, a debugging platform 120, a pressure sensor 130, a force transmission component 140 and a pressure member 150; the debugging platform 120 is connected to the support frame 110 along a first direction X, and the debugging platform 120 and the support frame 110 enclose a containing space, and the pressure sensor 130 and the force transmission component 140 are sequentially installed in the containing space from bottom to top; the force transmission component 140 has a first pressing portion B1 and a second pressing portion B2, and the first pressing portion B1 and the second pressing portion B2 are respectively located on the debugging platform 120 and the pressure member 140. On both sides of the second direction Y, the upper surfaces of the first pressing portion B1, the second pressing portion B2 and the debugging platform 120 are located in the same horizontal plane and form a supporting surface; the supporting surface is used to place the magnetic core buckle A, and the first pressing portion B1 and the second pressing portion B2 are respectively pressed and connected with the two ends of the magnetic core buckle A, and the pressure member 150 is arranged above the supporting surface so as to be movable up and down, and the pressure member 150 is used to press downward the middle arched part of the magnetic core buckle A and deform it to fit with the debugging platform 120; wherein the first direction X, the second direction Y and the up-down direction Z are perpendicular to each other.

[0042] In the present invention, the closing force of the core buckle A to be tested is converted into pressure, which is easy to obtain and can achieve the purpose of quantifying the closing force of the core buckle A, thereby providing a basis for the selection of the core buckle A and reducing the occurrence of magnetic core and electronic equipment failures; in addition, the pressure sensor 130 will only bear the pressure transmitted by the first pressing part B1 and the second pressing part B2, that is, the force generated by the deformation of the core buckle A, and the excess pressure applied by the pressure member 150 will be borne by the debugging platform 120. Therefore, the pressure obtained by the pressure sensor 130 is only related to the force generated by the deformation of the core buckle A, so that the final closing force value obtained is more accurate.

[0043] It should be noted that, refer to Figure 4 The magnetic core buckle A includes an integrally connected spring piece a2 and a side foot a1, the spring piece a2 is arched inward, and the two ends of the spring piece a2 are respectively connected to the side foot a1 at the corners. The closing force of the magnetic core buckle A is generally determined by factors such as the material and the arch height of the spring piece a2.

[0044] During the test, the pressure piece 150 is used to press downward on the arched position of the spring sheet a2, and the side feet a1 on both sides will move inward; and under the same material, the greater the deformation of the spring sheet a2 is pressed downward, the greater the amplitude of the side feet a1 moving together, that is, the greater the closing force of the side feet a1 is, so the force required to press downward on the spring sheet a2 is positively correlated with the closing force of the side feet a1; when the arch of the spring sheet a2 becomes straight, the closing force of the side feet a1 reaches the maximum value.

[0045] In actual use, the magnetic core buckle A fixes a pair of magnetic cores, and the magnetic core will squeeze the spring piece a2 and the side foot a1, and make the spring piece a2 straight, and prevent the side feet a1 on both sides from getting close. This is the closing force of the magnetic core buckle A when it is working, that is, the maximum closing force of the side foot a1. Therefore, during the test, the pressure sensor 130 obtains the pressure required to flatten the arched part of the magnetic core buckle A, and feeds it back to the calculation processing unit, so that the closing force of the magnetic core buckle A can be quantitatively or qualitatively obtained.

[0046] In some embodiments, reference Figure 2 and Figure 3 The force transmission assembly 140 includes a base 141, a first adjustment block 142 and a second adjustment block 143; the base 141 is pressed and connected with the pressure sensor 130, the first adjustment block 142 and the second adjustment block 143 are respectively pressed and connected to the two ends of the base 141 in the second direction Y, and the first adjustment block 142 and the second adjustment block 143 are respectively movably arranged along the second direction Y; the upper parts of the first adjustment block 142 and the second adjustment block 143 respectively constitute the first pressing part B1 and the second pressing part B2. In some embodiments, the base 141 is respectively provided with a first adjustment groove C1 and a second adjustment groove C2 distributed along the second direction Y at both ends of the second direction Y, and the lower parts of the first adjustment block 142 and the second adjustment block 143 are respectively movably connected to the first adjustment groove C1 and the second adjustment groove C2. In some embodiments, the base 141 is provided with a first reference line D1 distributed along the first direction X, and the first adjustment block 142 and the second adjustment block 143 are symmetrically arranged relative to the first reference line D1. In some embodiments, the upper surfaces of the first adjustment block 142 and the second adjustment block 143 are respectively provided with a second reference line D2 and a third reference line D3 distributed along the second direction Y, and the second reference line D2 is aligned with the third reference line D3; the magnetic core buckle A is aligned with the second reference line D2 and / or the third reference line D3.

[0047] In the above embodiment, the lower parts of the first adjustment block 142 and the second adjustment block 143 are provided with plug-in parts, and are respectively inserted into the first adjustment groove C1 and the second adjustment groove C2, so as to play a role of movement guide; specifically, the first adjustment block 142 and the second adjustment block 143 are movably arranged, and can adapt to magnetic core buckles A of different lengths, and have good versatility; in particular, after the first adjustment block 142 and the second adjustment block 143 are adjusted to their positions, during testing, the two can no longer be moved to avoid affecting the test results, and specifically, auxiliary locking parts can be added to lock the two, for example, adjustable bolts are respectively provided at both ends of the base 141 to tighten the first adjustment block 142 and the second adjustment block 143.

[0048] In addition, in some embodiments, a first reference line D1 is drawn in the middle of the base 141, the first adjustment slot C1 and the second adjustment slot C2 are symmetrically opened about the first reference line D1, and the first adjustment block 142 and the second adjustment block 143 are also symmetrically adjusted about the first reference line D1. For the convenience of observation, a scale can be set along the second direction Y on the base 141 to make the first adjustment block 142 and the second adjustment block 143 more symmetrical; the upper surfaces of the first adjustment block 142 and the second adjustment block 143 are also respectively provided with a second reference line D2 and a third reference line D3 that are aligned, and the magnetic core buckle A is opposite to the two; this setting method improves the placement reference for different magnetic core buckles A during the test, avoids the magnetic core buckle A from tilting or uneven pressure on the first adjustment block 142 and the second adjustment block 143, and can enhance the accuracy of the test results.

[0049] In some embodiments, reference Figure 1 , the debugging platform 120 is connected to the support frame 110 so as to be movable up and down, and can be locked to the support frame 110. In some embodiments, the support frame 110 includes a base 111, a screw 112 and a nut 113; there are two screws 112, and the two screws 112 are respectively arranged at the two ends of the base 111 in the first direction X along the up and down direction Z, and the two screws 112 are respectively passed through the two ends of the debugging platform 120 in the first direction X; each screw 112 is screwed with two nuts 113, and the two nuts 113 are respectively locked at the ends of the debugging platform 120 at the upper and lower sides. In some embodiments, refer to Figure 7 The pressure member 150 includes an elastic pressure head 151, which can be pressed against the middle part of the magnetic core buckle A.

[0050] In the above embodiment, the debugging platform 120 is located between the first adjustment block 142 and the second adjustment block 143, and the upper surfaces of the debugging platform 120, the first adjustment block 142 and the second adjustment block 143 are located on the same horizontal plane through the adjustment of the screw 112 and the nut 113. After the pressure member 150 presses the spring piece a2 of the magnetic core buckle A to fit with the debugging platform 120, the feedback value of the pressure sensor 130 can be obtained; compared with directly placing the magnetic core buckle A on the pressure sensor 130 for pressure reading, in the setting of the present invention, the excess pressure applied by the pressure member 150 after flattening will be offset by the support of the debugging platform 120, and the pressure sensor 130 will only reflect the pressure of the maximum deformation of the spring piece a2, so that the test result is more accurate. In addition, the elastic pressure head 151 of the pressure member 150 has better contact with the magnetic core buckle A during the pressure process, the contact area becomes larger, it is not easy to be misaligned, and the magnetic core buckle A will not be damaged.

[0051] In some embodiments, reference Figure 3 , Figure 5 and Figure 6 The pressure sensor 130 includes a sensor body 131 and a first positioning rod 132 and a second positioning rod 133 respectively connected to the two ends thereof. A first positioning hole C3 is provided in the middle of the base 141, and a second positioning hole E2 is provided in the middle of the base 111. The first positioning rod 132 and the second positioning rod 133 are respectively inserted into the first positioning hole C3 and the second positioning hole E2 to realize the positioning of the pressure sensor 130; moreover, in some embodiments, the base 111 is also provided with a limiting groove E3, and the second positioning hole E2 is provided in the limiting groove E3. One end of the pressure sensor 130 is limited in the limiting groove E3, so that the position of the pressure sensor 130 is more stable during measurement and is not easy to shake, thereby increasing the accuracy of the measurement result. In particular, referring to Figure 3 , the first positioning hole C3 on the base 141 can interrupt the first reference line D1.

[0052] In addition, refer to Figure 5 The two ends of the base 111 are respectively provided with mounting holes E1, and the mounting holes E1 are used to install the screw rod 112. The screw rod 112 may also be provided with only one nut 113 to support the debugging platform 120, which also belongs to the protection scope of the present invention. However, two nuts 113 are provided on each screw rod 112 to respectively lock the upper and lower sides of the debugging platform 120, thereby increasing the stability of the structure and preventing it from shaking, thereby enhancing the accuracy of the test results.

[0053] In the second aspect, the present invention further proposes a method for testing the closing force of a core buckle, which applies the core buckle closing force testing device 100 of the first aspect, and includes the following steps: placing the core buckle A on a supporting surface, and making its two ends contact the upper surfaces of the first pressing part B1 and the second pressing part B2 respectively; using a pressure piece 150 to press downward on the arched part in the middle of the core buckle A to deform it; gradually increasing the pressure until the middle of the core buckle A fits against the debugging table 120, and the pressure sensor 130 obtains the pressure value at this time; the pressure sensor 130 transmits the pressure value to the calculation unit, and obtains the closing force value after analysis. In some embodiments, the step of "placing the magnetic core clip A on the supporting surface and making its two ends contact the upper surfaces of the first pressing part B1 and the second pressing part B2 respectively" also includes the following steps: adjusting the position of the debugging platform 120 in the up and down direction Z so that its upper surface is located on the same horizontal plane as the upper surfaces of the first pressing part B1 and the second pressing part B2; adjusting the positions of the first pressing part B1 and the second pressing part B2 in the second direction Y so that the two are symmetrical about the debugging platform 120.

[0054] It should be noted that the magnetic core buckle closing force testing method of the second aspect uses the magnetic core buckle closing force testing device 100 of the first aspect, and has at least the technical effect of the first aspect, which will not be repeated here.

[0055] In particular, the term "and / or" in the present invention should be understood as follows:

[0056] In the first case, the term "and / or" located between a first subject and a second subject includes any one of the following meanings: (1) only the first subject; (2) only the second subject; and (3) the first subject and the second subject.

[0057] In the second case, the term "and / or" between the last two subjects among three or more subjects means including at least any one of the multiple subjects. For example, "the first subject, the second subject and / or the third subject" has the same meaning as "the first subject and / or the second subject and / or the third subject", specifically including the following combinations: (1) only the first subject; (2) only the second subject; (3) only the third subject; (4) the first subject and the second subject but not the third subject; (5) the first subject and the third subject but not the second subject; (6) the second subject and the third subject but not the first subject; and (7) the first subject, the second subject and the third subject.

[0058] In addition, although the above content describes the embodiments of the present invention in conjunction with the accompanying drawings, those skilled in the art can also make various modifications and variations without departing from the concept of the present invention, and such modifications and variations all fall within the scope of protection of the present invention.

Claims

1. A magnetic core buckle closing force testing device, characterized in that: The invention comprises a support frame (110), a debugging platform (120), a pressure sensor (130), a force transmission component (140) and a pressure member (150); the debugging platform (120) is connected to the support frame (110) along a first direction (X); the debugging platform (120) and the support frame (110) enclose a receiving space; the pressure sensor (130) and the force transmission component (140) are installed in sequence from bottom to top in the receiving space; the force transmission component (140) has a first pressing portion (B1) and a second pressing portion (B2); the first pressing portion (B1) and the second pressing portion (B2) are respectively located on both sides of the debugging platform (120) in a second direction (Y); The upper surfaces of the first pressing portion (B1), the second pressing portion (B2) and the debugging platform (120) are located in the same horizontal plane and form a supporting surface; the supporting surface is used to place the magnetic core buckle (A), and the first pressing portion (B1) and the second pressing portion (B2) are respectively connected to the two ends of the magnetic core buckle (A) by pressing; the pressure member (150) is arranged above the supporting surface so as to be movable up and down; the pressure member (150) is used to press downward the middle arched portion of the magnetic core buckle (A) and deform it to fit the debugging platform (120); wherein the first direction (X), the second direction (Y) and the up-down direction (Z) are perpendicular to each other; The force transmission component (140) comprises a base (141), a first adjustment block (142) and a second adjustment block (143); the base (141) is pressed and connected with the pressure sensor (130); the first adjustment block (142) and the second adjustment block (143) are respectively pressed and connected to the two ends of the base (141) in the second direction (Y), and the first adjustment block (142) and the second adjustment block (143) are respectively movably arranged along the second direction (Y); the upper parts of the first adjustment block (142) and the second adjustment block (143) respectively constitute the first pressing part (B1) and the second pressing part (B2).

2. The magnetic core buckle closing force testing device according to claim 1, characterized in that: The base (141) is provided with a first adjustment groove (C1) and a second adjustment groove (C2) distributed along the second direction (Y) at both ends of the second direction (Y), and the lower parts of the first adjustment block (142) and the second adjustment block (143) are movably connected to the first adjustment groove (C1) and the second adjustment groove (C2).

3. The magnetic core buckle closing force testing device according to claim 1, characterized in that: The base (141) is provided with a first reference line (D1) distributed along the first direction (X), and the first adjustment block (142) and the second adjustment block (143) are symmetrically arranged relative to the first reference line (D1).

4. The magnetic core buckle closing force testing device according to claim 1, characterized in that: The upper surfaces of the first adjustment block (142) and the second adjustment block (143) are respectively provided with a second reference line (D2) and a third reference line (D3) distributed along the second direction (Y), and the second reference line (D2) is aligned with the third reference line (D3); The magnetic core buckle (A) is aligned with the second reference line (D2) and / or the third reference line (D3).

5. The magnetic core buckle closing force testing device according to claim 1, characterized in that: The debugging platform (120) is connected to the support frame (110) in a manner that it can move up and down, and can be locked to the support frame (110).

6. The magnetic core buckle closing force testing device according to claim 5, characterized in that: The support frame (110) comprises a base (111), a screw rod (112) and a nut (113); There are two screw rods (112), and the two screw rods (112) are respectively erected along the up-down direction (Z) at two ends of the base (111) in the first direction (X), and the two screw rods (112) are respectively passed through two ends of the debugging platform (120) in the first direction (X); Each of the screw rods (112) is threadedly connected to two nuts (113), and the two nuts (113) respectively lock the ends of the two nuts on the upper and lower sides of the debugging platform (120).

7. The magnetic core buckle closing force testing device according to any one of claims 1 to 6, characterized in that: The pressure member (150) comprises an elastic pressure head (151), and the elastic pressure head (151) can be pressed against the middle part of the magnetic core buckle (A).

8. A method for testing the closing force of a magnetic core buckle, characterized in that: The magnetic core buckle closing force testing device (100) according to any one of claims 1 to 7 comprises the following steps: Moving and adjusting the distance between the first adjustment block (142) and the second adjustment block (143) to make them match the length of the magnetic core buckle (A); Place the magnetic core buckle (A) on the supporting surface, and make its two ends contact the upper surface of the first pressing part (B1) and the second pressing part (B2) respectively; Using a pressure piece (150) to press downwards the arched portion in the middle of the magnetic core buckle (A) to deform it; Gradually increase the pressure until the middle of the magnetic core buckle (A) fits against the debugging platform (120), and the pressure sensor (130) obtains the pressure value at this time; The pressure sensor (130) transmits the pressure value to the calculation unit, and the closing force value is obtained through analysis.

9. The method for testing the closing force of a magnetic core buckle according to claim 8, characterized in that: The step of "placing the magnetic core buckle (A) on the supporting surface and making its two ends contact the upper surfaces of the first pressing portion (B1) and the second pressing portion (B2) respectively" also includes the following steps: Adjusting the position of the debugging platform (120) in the up-down direction (Z) so that its upper surface is located at the same horizontal plane as the upper surfaces of the first pressing portion (B1) and the second pressing portion (B2); The positions of the first pressing portion (B1) and the second pressing portion (B2) in the second direction (Y) are adjusted so that the two are symmetrical with respect to the debugging platform (120).

Images