Enameled wire hardness detection device

Abstract

The utility model discloses an enamelled wire hardness detection device, which relates to the hardness detection technology field, and comprises two support assemblies, a roll shaft assembly, fixing members and a clamping mechanism, the two support assemblies are arranged side by side, the upper end of each support assembly is provided with two fixing members, the roll shaft assembly is rotatably arranged between the two fixing members, and the clamping mechanism is arranged on the roll shaft assembly. The roll shaft assembly is provided with roll shaft grooves, the enameled wire is installed in the two roll shaft grooves, and the clamping mechanism is arranged between the two roll shaft grooves. According to the utility model, through the arrangement of the supporting assembly, the roll shaft assembly, the fixing piece and the clamping mechanism, enameled wires with different wire widths can be measured, the influence on the measurement precision caused by twisting of the enameled wires or friction of the roll shaft due to deformation can be prevented, the measurement error is small, the anti-interference capability is strong, and the application range is wider; and the method is particularly suitable for measuring the hardness of the enameled wire.

Description

Technical Field

[0001] The utility model relates to the technical field of hardness detection, in particular to a device for detecting the softness and hardness of an enameled wire. Background Art

[0002] Enameled wire is a key material widely used in the electrical and electronic fields. Accurately measuring its properties is crucial for product quality and reliability. Among the many performance indicators of enameled wire, its hardness and softness directly impact its performance in applications such as hairpin molding, motor windings, and electronic connectors. However, current testing methods and equipment for enameled wire hardness and softness vary widely in the market, lacking a unified and effective standard.

[0003] The traditional method for testing the softness and hardness of enameled wire is to clamp the wire at both ends on a horizontal surface with equipment, manually apply stress to the middle, and bend the wire 30°. The force is then immediately stopped. After the wire rebounds, the angle of rebound is measured, and this angle is used as a parameter to determine the softness and hardness of the wire. However, this test method deviates from actual use and is prone to errors when measuring angles. Moreover, for the special shape of flat wire, the rebound angle test method does not match the deformation state of the flat wire under actual use. Furthermore, the rebound angle test method requires manual application of external force and reading, which leads to greater human error. Moreover, when measuring the rebound angle, the force position in the test differs significantly from the installation and force-applying method during the flat wire forming process, which can also make the measurement results less intuitive. Utility Model Content

[0004] The purpose of the utility model is to provide a device for detecting the softness and hardness of an enameled wire, so as to solve the above technical problems.

[0005] The technical solutions adopted in this utility model are as follows:

[0006] A device for detecting the softness and hardness of an enameled wire comprises a support assembly, a roller assembly, a fixing part and a clamping mechanism. The two support assemblies are arranged side by side, and the upper end of each support assembly is respectively provided with two fixing parts. The roller assembly is rotatably provided between the two fixing parts. The roller assembly is provided with a roller groove. The enameled wire is installed in the two roller grooves. The clamping mechanism is provided between the two roller grooves.

[0007] Preferably, it further includes a base plate, and the support assembly is arranged on the base plate.

[0008] As a further preference, each of the support assemblies includes two support members, and the upper end of each of the support members is provided with a fixing member, and the two support members are arranged side by side.

[0009] Preferably, the roller assembly includes a roller shaft, both ends of the roller shaft are connected to the two fixing members, a roller shaft groove is opened on the roller shaft, and the two roller shaft grooves on the two roller shafts are arranged side by side.

[0010] As a further preference, it further includes bearings, each of the fixing members is provided with a bearing, and both ends of the roller shaft are provided in the two bearings.

[0011] As a further preference, it further includes a first connecting member, and the supporting member is connected to the base plate via the first connecting member.

[0012] As a further preference, it further includes a second connecting member, and the fixing member is connected to the supporting member via the second connecting member.

[0013] Preferably, the clamping mechanism includes a clamping block and a positioning pin, the lower end of the clamping block is provided with a clamping groove, a positioning hole is provided on one side of the lower end of the clamping block, the positioning pin is provided in the positioning hole, and one end of the positioning pin can extend into the clamping groove.

[0014] As a further preference, a connecting hole is provided at the upper end of the clamping block.

[0015] Preferably, the clamping mechanism is located in the middle between the two roller grooves.

[0016] The above technical solution has the following advantages or beneficial effects:

[0017] In the utility model, through the arrangement of the support assembly, the roller assembly, the fixing part and the clamping mechanism, enameled wires of different wire widths can be measured, and deformation can be prevented from causing the enameled wire to twist or rub the roller and affect the measurement accuracy. The utility model has small measurement error, strong anti-interference ability, wider application range, and is closer to practical application. It is particularly suitable for measuring the softness and hardness of enameled wires. BRIEF DESCRIPTION OF THE DRAWINGS

[0018] Figure 1 This is the main view of the enameled wire hardness testing device of the present invention;

[0019] Figure 2 This is a top view of the enameled wire hardness detection device of the present invention;

[0020] Figure 3 It is a three-dimensional diagram of the softness and hardness detection device of the enameled wire in the utility model.

[0021] In the figure: 1. Support assembly; 101. Support member; 2. Roller assembly; 201. Roller groove; 202. Roller; 3. Fixing member; 4. Clamping mechanism; 401. Clamping block; 402. Positioning pin; 403. Clamping groove; 404. Connecting hole; 5. Bottom plate; 6. Bearing; 7. First connecting member; 8. Second connecting member; 9. Enameled wire. DETAILED DESCRIPTION

[0022] The following is a clear and complete description of the technical solution of the present invention in conjunction with the accompanying drawings. Obviously, the embodiments described are only some of the embodiments of the present invention, not all of them. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without making any creative efforts are within the scope of protection of the present invention.

[0023] In the description of this utility model, it should be noted that the terms "center," "upper," "lower," "left," "right," "vertical," "horizontal," "inner," and "outer" and the like are used to indicate positions or locations based on those shown in the accompanying drawings. These terms are intended solely to facilitate the description of this utility model and to simplify the description. They are not intended to indicate or imply that the devices or components referred to must have a specific orientation, be constructed, or operate in a specific orientation. Therefore, they should not be construed as limitations on this utility model. Furthermore, the terms "first," "second," and "third" are used solely for descriptive purposes and should not be construed as indicating or implying relative importance.

[0024] In the description of this utility model, it should be noted that, unless otherwise expressly specified or limited, the terms "mounted," "connected," and "connected" should be understood in a broad sense. For example, they can refer to fixed connection, detachable connection, or integral connection; mechanical connection, electrical connection; direct connection, indirect connection through an intermediate medium, or internal communication between two components. Those skilled in the art will understand the specific meanings of the above terms in this utility model based on the specific circumstances.

[0025] Figure 1 This is the main view of the enameled wire hardness testing device of the present invention; Figure 2 This is a top view of the enameled wire hardness detection device of the present invention; Figure 3 This is a three-dimensional diagram of the enameled wire hardness detection device in this utility model. Figures 1 to 3As shown, a preferred embodiment is shown, which shows an enameled wire softness and hardness detection device, including a support component 1, a roller component 2, a fixing part 3 and a clamping mechanism 4. The two support components 1 are arranged side by side, and two fixing parts 3 are respectively provided at the upper end of each support component 1. A roller component 2 is rotatably provided between the two fixing parts 3. A roller groove 201 is provided on the roller component 2. The enameled wire 9 is installed in the two roller grooves 201. The clamping mechanism 4 is provided between the two roller grooves 201, wherein the enameled wire 9 can be a flat wire or a round wire. In this embodiment, a base plate 5 is also included, and the support component 1 is provided on the base plate 5 for installing the support component 1, which plays the role of installing and supporting the support component 1. The support component 1 is used to support the fixing part 3, and the fixing part 3 is used to install the roller component 2. The roller groove 201 on the roller component 2 is used to place the enameled wire 9, see Figure 1 As shown, both ends of the enameled wire 9 are placed in the two roller grooves 201 and can slide in the two roller grooves 201, and the clamping mechanism 4 is used to clamp the enameled wire 9 and can be connected to an external tensile testing machine. The clamping mechanism 4 can be driven by the tensile testing machine to drive the enameled wire 9 to move downward at a fixed speed.

[0026] Furthermore, as a preferred embodiment, each support assembly 1 includes two support members 101, each support member 101 is provided with a fixing member 3 at its upper end, and the two support members 101 are arranged side by side. Figure 3 As shown, the support member 101 is a convex structure as a whole, and the two sides of the support member 101 are connected to the base plate 5 through the first connecting member 7, wherein the first connecting member 7 is a bolt or screw or other connecting parts, which can be selected according to needs, and a hole structure that matches the first connecting member 7 is provided on the base plate 5.

[0027] The fixing member 3 is connected to the supporting member 101 through the second connecting member 8. The fixing member 3 is a convex block structure. Both sides of the fixing member 3 are connected to the upper end of the supporting member 101 through the second connecting member 8. The second connecting member 8 is a bolt, screw or other connecting part.

[0028] Furthermore, as a preferred embodiment, the roller assembly 2 includes a roller 202, both ends of which are connected to two fixing members 3, and each roller 202 is provided with a roller groove 201, and the two roller grooves 201 on the two rollers 202 are arranged side by side. Figure 2 and Figure 3 As shown, the roller 202 can rotate to place the enameled wire 9 in the roller groove 201, thereby preventing the enameled wire 9 from shifting due to downward pressure. The direction of the position shift is the axis direction of the roller 202. The center lines of the two roller grooves 201 are located on the same straight line.

[0029] Furthermore, as a preferred embodiment, it further includes bearings 6. Each fixing member 3 is provided with a bearing 6, and both ends of the roller shaft 202 are provided in the two bearings 6. Figure 1 and Figure 3 As shown, bearing 6 is mounted inside the upper end of fixing member 3, and both ends of roller shaft 202 are disposed within two bearings 6, facilitating the rotation of roller shaft 202. When enameled wire 9 is pressed downward, the outer wall of enameled wire 9 contacts the inner wall of roller shaft groove 201, driving roller shaft 202 to rotate. Rotating roller shaft 202 facilitates the sliding of enameled wire 9 within roller shaft groove 201, reducing friction and facilitating deformation of enameled wire 9.

[0030] In this embodiment, two rollers 202 are arranged side by side, with the roller groove 201 located in the middle of the rollers 202. The clamping mechanism 4 is located midway between the two roller grooves 201. In this embodiment, the roller groove 201 can be 4 mm or 8 mm wide to accommodate different wire widths, preventing deformation that could cause the wire to twist or rub against the rollers. Of course, the width of the roller groove 201 is not limited to 4 mm or 8 mm; other sizes are also possible.

[0031] The enameled wire hardness detection device in this embodiment can simulate the possible support and force conditions in actual use, and can more realistically reflect the performance of the enameled wire 9 in the actual working environment; and directly obtain the rebound distance value, which is convenient for quantitative comparison and analysis; at the same time, it avoids manual reading errors and consistency problems caused by manual operation.

[0032] Furthermore, as a preferred embodiment, the clamping mechanism 4 includes a clamping block 401 and a positioning pin 402. The lower end of the clamping block 401 is provided with a clamping groove 403. A positioning hole is provided on one side of the lower end of the clamping block 401. The positioning hole is provided with a positioning pin 402, and one end of the positioning pin 402 can extend into the clamping groove 403. In this embodiment, a connecting hole 404 is provided at the upper end of the clamping block 401. The connecting hole 404 can be connected to an external tensile testing machine with a bolt, while the clamping groove 403 is used to install the enameled wire 9, and the positioning pin 402 is used to support the upper end of the enameled wire 9.

[0033] During use, the enameled wire 9 is first straightened and placed into the two roller grooves 201. The wire 9 is then installed in the clamping groove 403 with an initial displacement of zero. In the center of the wire, the tensile testing machine applies a fixed speed from top to bottom, driving the clamping block 401 downward. This causes the enameled wire 9 to deform. When the deformation reaches its maximum value, typically fixed at 90 mm, the tensile testing machine then returns to its original position. The initial zero-load displacement of the tensile sensor on the tensile testing machine is recorded. The rebound of the wire 9 is calculated as Rebound = Maximum Displacement - Zero-Load Displacement. The maximum displacement is the distance the clamping block 401 moves downward.

[0034] The above description is only a preferred embodiment of the present invention and does not limit the implementation method and protection scope of the present invention. For those skilled in the art, it should be aware that all solutions obtained by equivalent substitutions and obvious changes made using the description and illustrations of the present invention should be included in the protection scope of the present invention.

Claims

1. A device for detecting the softness and hardness of an enameled wire, characterized in that: It includes a support component, a roller assembly, a fixing part and a clamping mechanism. The two support components are arranged side by side. The upper end of each support component is respectively provided with two fixing parts. The roller assembly is rotatably provided between the two fixing parts. The roller assembly is provided with a roller groove. The enameled wire is installed in the two roller grooves. The clamping mechanism is provided between the two roller grooves.

2. The enameled wire hardness detection device according to claim 1, characterized in that: It also includes a bottom plate, and the supporting assembly is arranged on the bottom plate.

3. The enameled wire hardness detection device according to claim 2, characterized in that: Each of the support assemblies includes two support members, and the upper end of each support member is provided with a fixing member, and the two support members are arranged side by side.

4. The enameled wire hardness detection device according to claim 1, characterized in that: The roller shaft assembly includes a roller shaft, both ends of the roller shaft are connected to the two fixing members, a roller shaft groove is opened on the roller shaft, and the two roller shaft grooves on the two roller shafts are arranged side by side.

5. The enameled wire hardness detection device according to claim 4, characterized in that: It also includes bearings, each of the fixing members is respectively provided with a bearing, and the two ends of the roller shaft are arranged in the two bearings.

6. The enameled wire hardness detection device according to claim 3, characterized in that: It also includes a first connecting member, and the supporting member is connected to the base plate through the first connecting member.

7. The enameled wire hardness detection device according to claim 3, characterized in that: It also includes a second connecting member, and the fixing member is connected to the supporting member through the second connecting member.

8. The enameled wire hardness detection device according to claim 1, characterized in that: The clamping mechanism includes a clamping block and a positioning pin. The lower end of the clamping block is provided with a clamping groove, and one side of the lower end of the clamping block is provided with a positioning hole. The positioning pin is provided in the positioning hole, and one end of the positioning pin can extend into the clamping groove.

9. The enameled wire hardness detection device according to claim 8, characterized in that: The upper end of the clamping block is provided with a connecting hole.

10. The enameled wire hardness detection device according to claim 1, characterized in that: The clamping mechanism is located in the middle between the two roller grooves.

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