A tool for detecting magnet magnetizing angle and a manufacturing method thereof

Abstract

The application provides a device for detecting magnet magnetizing angle and a manufacturing method thereof, and relates to the technical field of detection devices. The device for detecting magnet magnetizing angle has a hollow accommodating cavity configured to accommodate a magnet. The device includes a fixing seat and a stator made of a magnetic conductive material. The stator is arranged around the accommodating cavity and includes oppositely arranged first and second stator teeth. The first and second stator teeth are arranged on opposite sides of the accommodating cavity. The stator is used to apply torque to the magnet. The fixing seat includes a fixing part, a rotating part and a display part. The stator is mounted on the fixing part. The rotating part is used to rotate synchronously with the magnet. The display part is configured to display the angle through which the rotating part rotates. The manufacturing method is used to manufacture the device. The application can detect the magnet magnetizing angle.

Description

Technical Field

[0001] This invention relates to the field of testing tooling technology, and more specifically, to a tooling for detecting the magnetization angle of a magnet and its manufacturing method. Background Technology

[0002] Typically, positioning devices used in precision motion stages include Lorentz motors. For example, photolithography equipment used in integrated circuit manufacturing includes a light source and a substrate for placing silicon wafers. During exposure, light often needs to illuminate a designated area of ​​the silicon wafer coated with a photosensitive material to etch the desired circuit pattern onto the wafer. Therefore, during exposure, the positioning device used to fix the substrate needs to achieve sufficient precision to ensure that the light accurately illuminates the area to be exposed. The positioning device for fixing the substrate generally includes multiple Lorentz motors to achieve multi-degree-of-freedom precision movement.

[0003] The magnet assemblies in Lorentz motors typically use Halbach magnet arrays with magnets exhibiting an inclined magnetization direction. This inclined magnetization direction means that the magnetization angle of the magnet is not perpendicular to the magnet surface, but rather forms a certain angle. This angle can be optimized to obtain an optimal angle, which needs to be checked during manufacturing and assembly. Only by using magnet assemblies with the appropriate magnetization angle can the magnet assembly meet the usage requirements. Currently, there is no tooling available to check the magnetization angle of magnets, thus failing to meet the purpose of magnetization angle detection. Summary of the Invention

[0004] The first objective of this invention is to provide a tooling for detecting the magnetization angle of a magnet, thereby solving the technical problem that the prior art cannot detect the magnetization angle of a magnet.

[0005] The present invention provides a fixture for detecting the magnetization angle of a magnet, having a hollow receiving cavity configured to receive the magnet. The fixture includes a fixed base and a stator made of magnetically conductive material, the stator being arranged around the receiving cavity. The stator includes a first stator tooth and a second stator tooth disposed opposite to each other on both sides of the receiving cavity. The stator is used to apply torque to the magnet. The fixed base includes a fixed part, a rotating part, and a display part. The stator is mounted on the fixed part, the rotating part is used to rotate synchronously with the magnet, and the display part is configured to display the angle rotated by the rotating part.

[0006] Furthermore, the fixing part includes a base and a frame structure, the frame structure is fixedly disposed on the base, and the stator is mounted on the frame structure; the rotating part includes a lower rotating seat, the lower rotating seat is rotatably disposed on the base.

[0007] Furthermore, the base is provided with a positioning groove, and the skeleton structure is installed in the positioning groove.

[0008] Furthermore, the outer wall of the skeleton structure is provided with a positioning flange, the skeleton structure is installed in the positioning groove through the positioning flange, and the stator is supported on the positioning flange.

[0009] Further, the stator includes a first stator lobe and a second stator lobe disposed opposite to each other, wherein the first stator lobe has a first stator tooth and a first limiting groove disposed on both sides of the first stator tooth, and the second stator lobe has a second stator tooth and a second limiting groove disposed on both sides of the second stator tooth; the outer wall of the skeleton structure has a receiving portion communicating with the receiving cavity, the first stator lobe is fastened to the skeleton structure through the first limiting groove, the first stator tooth is inserted into the receiving portion, the second stator lobe is fastened to the skeleton structure through the second limiting groove, the second stator tooth is inserted into the receiving portion, and both the first stator lobe and the second stator lobe are supported by the positioning flange.

[0010] Furthermore, the skeleton structure includes a first skeleton and a second skeleton disposed opposite to each other, the first skeleton and the second skeleton being spaced apart, the gap between them forming the receiving portion; one of the first limiting grooves of the first stator lobe is fastened to the first skeleton, and the other first limiting groove is fastened to the second skeleton; one of the second limiting grooves of the second stator lobe is fastened to the first skeleton, and the other second limiting groove is fastened to the second skeleton.

[0011] Furthermore, the fixing part also includes an upper cover, and the rotating part also includes an upper rotating seat rotatably disposed on the upper cover. The upper rotating seat is opposite to the lower rotating seat, and the upper rotating seat can be circumferentially limited to cooperate with the magnet. The upper cover is detachably fixedly connected to the frame structure.

[0012] Furthermore, a bearing is provided between the upper rotating seat and the upper cover, and / or a bearing is provided between the lower rotating seat and the base.

[0013] Furthermore, the display unit includes a pointer and a scale that cooperates with the pointer, wherein the pointer is fixedly connected to the upper rotating base, and the scale is disposed on the upper cover.

[0014] The beneficial effects of the tooling for detecting the magnetization angle of a magnet in this invention are:

[0015] By incorporating a hollow receiving cavity within the fixture used for detecting the magnetization angle of a magnet, the magnet to be tested can be contained. The fixture primarily consists of a fixed base and a stator. The stator is made of a magnetically conductive material and surrounds the receiving cavity. The stator includes a first stator tooth and a second stator tooth arranged opposite each other, located on opposite sides of the receiving cavity, for applying torque to the magnet within the cavity. The fixed base includes a fixing part for mounting the stator, a rotating part for rotating synchronously with the magnet, and a display part for displaying the angle rotated by the rotating part.

[0016] When it is necessary to detect the magnetization angle of a magnet, the magnet can be placed in the receiving cavity. Under the action of the first and second stator teeth of the stator, which are made of magnetically conductive material, the magnet will rotate through a certain angle. At this point, the torque on the magnet is 0 Nm, and the magnet reaches a state of equilibrium. The display unit shows the angle through which the magnet has rotated, which is the magnetization angle of the magnet. The operator can directly obtain the magnetization angle of the magnet by reading the current data on the display unit.

[0017] This fixture for detecting the magnetization angle of a magnet can detect the magnetization angle of a magnet, thus solving the technical problem that existing technologies cannot detect the magnetization angle of a magnet.

[0018] The second objective of this invention is to provide a tooling manufacturing method to solve the technical problem that the prior art lacks a tooling capable of detecting the magnetization angle of a magnet, thus making it impossible to detect the magnetization angle of a magnet.

[0019] The tooling manufacturing method provided by this invention is used to manufacture the aforementioned tooling, and includes a step of determining the stator dimensions, wherein the step of determining the stator dimensions includes:

[0020] Using finite element software, the width L of the first stator tooth and the second stator tooth, as well as the radius R of their arc surfaces facing the receiving cavity, are initially determined based on the set magnet dimensions.

[0021] Calculate the torque of the magnet based on its magnetization angle;

[0022] When the magnetization angle of the magnet is aligned with the first stator tooth and the second stator tooth, determine whether the torque of the magnet is 0 Nm; if the torque of the magnet is not 0 Nm, adjust L and R.

[0023] If the magnet's torque is 0 Nm, calculate whether different magnetization angles of the magnet meet the detection purpose; if different magnetization angles of the magnet do not meet the detection purpose, continue to adjust L and R.

[0024] If different magnetization angles of the magnets meet the testing objectives, the stator dimensions can be determined.

[0025] The beneficial effects of the tooling manufacturing method of this invention are:

[0026] The tooling manufacturing method provided by this invention uses the assumption that the magnet is in equilibrium when the magnet torque is 0 Nm as a basis. Finite element method software is used to determine the corresponding dimensions of the first and second stator teeth of the stator used for detecting the magnetization angle, enabling the detection of different magnetization angles and improving the adaptability of the aforementioned tooling for detecting the magnetization angle. Furthermore, determining the corresponding dimensions of the first and second stator teeth using finite element method software enables precise angle tracking, and the determined stator dimensions have high accuracy.

[0027] This tooling fabrication method enables precise angle tracking through a stator structure designed using finite element methods. By adjusting the stator tooth width L and inner diameter R, the angle through which the tilted magnetizing magnet rotates within the stator can be adjusted, thereby enabling the detection of the magnetizing angle. Attached Figure Description

[0028] To more clearly illustrate the technical solutions in the embodiments of the present invention or the prior art, the drawings used in the description of the embodiments or the prior art will be briefly introduced below. Obviously, the drawings described below are only embodiments of the present invention. For those skilled in the art, other drawings can be obtained based on the provided drawings without creative effort.

[0029] Figure 1 This is a schematic diagram of the tooling for detecting the magnetization angle of a magnet, provided in an embodiment of the present invention.

[0030] Figure 2 An exploded view of the structure of the tooling for detecting the magnetization angle of a magnet provided in an embodiment of the present invention. Figure 1 ;

[0031] Figure 3 An exploded view of the structure of the tooling for detecting the magnetization angle of a magnet provided in an embodiment of the present invention. Figure 2 ;

[0032] Figure 4 This is a top view of the tooling for detecting the magnetization angle of a magnet provided in an embodiment of the present invention;

[0033] Figure 5 for Figure 4 AA section view in the middle;

[0034] Figure 6 A schematic diagram of the detection principle of a tooling for detecting the magnetization angle of a magnet, provided in an embodiment of the present invention;

[0035] Figure 7 This is a front view of the tooling for detecting the magnetization angle of a magnet provided in an embodiment of the present invention;

[0036] Figure 8 This is a schematic diagram illustrating the steps of determining the stator dimensions in the tooling manufacturing method provided in this embodiment of the invention;

[0037] Figure 9 This diagram illustrates the torque experienced by a magnet when it rotates through different angles at different magnetization angles.

[0038] Explanation of reference numerals in the attached figures:

[0039] 010 - Tooling; 020 - Magnet;

[0040] 100-Fixed base; 200-Stator; 300-Pointer; 400-Receiving cavity;

[0041] 110 - Base; 120 - Frame structure; 130 - Lower swivel; 140 - Upper cover; 150 - Upper swivel; 160 - Bearing; 170 - First screw; 180 - Second screw; 190 - Third screw;

[0042] 111 - Positioning groove;

[0043] 121-First frame; 122-Second frame; 123-Positioning flange; 124-Accommodation part;

[0044] 141 - Scale;

[0045] 210 - First stator lobe; 211 - First stator tooth; 212 - First limiting groove;

[0046] 220 - Second stator lobe; 221 - Second stator tooth; 222 - Second limiting groove. Detailed Implementation

[0047] To make the above-mentioned objects, features, and advantages of the present invention more apparent and understandable, specific embodiments of the present invention will be described in detail below with reference to the accompanying drawings. It should be understood that the specific embodiments described herein are merely illustrative of the invention and are not intended to limit the invention.

[0048] Figure 1 This is a schematic diagram of the fixture 010 for detecting the magnetization angle of a magnet, provided in this embodiment. Figure 2 This is an exploded view of the fixture 010 for detecting the magnetization angle of a magnet provided in this embodiment. Figure 1 , Figure 3 This is an exploded view of the fixture 010 for detecting the magnetization angle of a magnet provided in this embodiment. Figure 2 , Figure 4 This is a top view of the fixture 010 for detecting the magnetization angle of a magnet provided in this embodiment. Figure 5 for Figure 4 AA section view in the image. Figures 1 to 5 As shown, this embodiment provides a fixture 010 (hereinafter referred to as fixture 010 for convenience of description) for detecting the magnetization angle of a magnet. The fixture 010 has a hollow receiving cavity 400, which is configured to receive a magnet 020.

[0049] Please continue to refer to Figure 2 , Figure 3 and Figure 5 In this embodiment, specifically, the tooling 010 includes a fixed base 100 and a stator 200 made of magnetically conductive material. The stator 200 is arranged around the receiving cavity 400. The stator 200 includes a first stator tooth 211 and a second stator tooth 221 arranged opposite to each other. The first stator tooth 211 and the second stator tooth 221 are respectively located on both sides of the receiving cavity 400. The stator 200 is used to apply torque to the magnet 020. The fixed base 100 includes a fixed part, a rotating part and a display part. The stator 200 is mounted on the fixed part. The rotating part is used to rotate synchronously with the magnet 020. The display part is configured to display the angle rotated by the rotating part.

[0050] Figure 6 This is a schematic diagram illustrating the detection principle of the fixture 010 used for detecting the magnetization angle of a magnet provided in this embodiment. When it is necessary to detect the magnetization angle of magnet 020, magnet 020 can be placed in the receiving cavity 400. Under the action of the first stator teeth 211 and the second stator teeth 221 of the stator 200 made of magnetically conductive material, magnet 020 will rotate through a certain angle (rotating θ in the direction of arrow S in the figure). At this time, the torque on magnet 020 is 0 Nm, the marked arrow of magnet 020 will coincide with the 0 position line, magnet 020 reaches a balanced state, and the display unit displays the angle rotated by magnet 020, which is the magnetization angle of magnet 020. The operator can intuitively obtain the magnetization angle of magnet 020 by directly reading the current data of the display unit.

[0051] The fixture 010 for detecting the magnetization angle of a magnet can detect the magnetization angle of a magnet 020, thus solving the technical problem that the existing technology cannot detect the magnetization angle of a magnet.

[0052] Please continue to refer to Figures 1 to 3 ,as well as Figure 5 In this embodiment, the fixing part may include a base 110 and a frame structure 120. Specifically, the frame structure 120 is fixedly disposed on the base 110, and the stator 200 is installed on the frame structure 120. The rotating part includes a lower rotating seat 130, which is rotatably disposed on the base 110.

[0053] When the fixture 010 detects the magnetization angle of the magnet 020, the base 110 provides support for the entire fixture 010 to ensure stability during the detection process. The frame structure 120 supports the stator 200 to prevent the stator 200 from shaking, thereby ensuring the reliability of the stator 200 applying torque to the magnet 020.

[0054] Please continue to refer to Figure 2 In this embodiment, the lower rotating base 130 has a rectangular cross-section insertion hole, through which the magnet 020 can be inserted into the lower rotating base 130, thereby realizing the synchronous rotation of the lower rotating base 130 when the magnet 020 is rotated by torque.

[0055] Please continue to refer to Figure 1 and Figure 2 In this embodiment, the base 110 is provided with a positioning groove 111, and the skeleton structure 120 is installed in the positioning groove 111.

[0056] By setting a positioning groove 111 in the base 110 and installing the skeleton structure 120 in the positioning groove 111, on the one hand, the pre-positioning of the skeleton structure 120 during installation is realized, which improves the assembly efficiency of the skeleton structure 120; on the other hand, it can also play a certain limiting role for the skeleton structure 120, restricting the degree of freedom of movement of the skeleton structure 120 in the horizontal direction.

[0057] Figure 7 This is a front view of the fixture 010 for detecting the magnetization angle of a magnet, provided in an embodiment of the present invention. Please continue to refer to... Figures 1 to 3 ,as well as Figure 5 and combined Figure 7 In this embodiment, the outer wall of the skeleton structure 120 is provided with a positioning flange 123. The skeleton structure 120 is installed in the positioning groove 111 through the positioning flange 123, and the stator 200 is supported by the positioning flange 123.

[0058] By providing a positioning flange 123 on the outer wall of the skeleton structure 120, it can cooperate with the positioning groove 111 to achieve horizontal positioning of the skeleton structure 120. On the other hand, it can also support the stator 200, so that the weight of the stator 200 is entirely borne by the positioning flange 123, ensuring the reliability of the support for the stator 200.

[0059] Please continue to refer to Figures 1 to 3 ,as well as Figures 5 to 7In this embodiment, the stator 200 includes a first stator lobe 210 and a second stator lobe 220 disposed opposite to each other. Specifically, the first stator lobe 210 has a first stator tooth 211 and a first limiting groove 212 disposed on both sides of the first stator tooth 211, and the second stator lobe 220 has a second stator tooth 221 and a second limiting groove 222 disposed on both sides of the second stator tooth 221. The outer wall of the skeleton structure 120 is provided with a receiving portion 124 communicating with the receiving cavity 400. The first stator lobe 210 is fastened to the skeleton structure 120 through the first limiting groove 212, and the first stator tooth 211 is inserted into the receiving portion 124. The second stator lobe 220 is fastened to the skeleton structure 120 through the second limiting groove 222, and the second stator tooth 221 is also inserted into the receiving portion 124. Both the first stator lobe 210 and the second stator lobe 220 are supported on the positioning flange 123.

[0060] When it is necessary to detect the magnetization angle of magnet 020, magnet 020 can be installed in the receiving cavity 400 and inserted into the lower rotating seat 130. Then, the first stator segment 210 is fastened to the frame structure 120 through the first limiting groove 212, and the second stator segment 220 is fastened to the frame structure 120 through the second limiting groove 222. At this time, the first stator tooth 211 and the second stator tooth 221 are inserted into the receiving part 124 of the frame structure 120, completing the installation of stator 200. Then, the stator 200 can apply torque to magnet 020 in receiving cavity 400 to detect the magnetization angle of magnet 020.

[0061] By setting the stator 200 to consist of a first stator lobe 210 and a second stator lobe 220, when it is necessary to detect the magnetization angle of the magnet 020, the magnet 020 can be fixed first and then the stator 200 can be installed. This avoids the situation where the magnet 020 is difficult to insert into the lower rotating seat 130 after the stator 200 is installed first, thus reducing the installation difficulty of the magnet 020 and greatly facilitating the installation of the magnet 020.

[0062] Please continue to refer to Figures 1 to 3 In this embodiment, the skeleton structure 120 may include a first skeleton 121 and a second skeleton 122 disposed opposite to each other. Specifically, the first skeleton 121 and the second skeleton 122 are spaced apart, and the gap between them forms a receiving portion 124. One first limiting groove 212 of the first stator lobe 210 is fastened to the first skeleton 121, and the other first limiting groove 212 is fastened to the second skeleton 122. One second limiting groove 222 of the second stator lobe 220 is fastened to the first skeleton 121, and the other second limiting groove 222 is fastened to the second skeleton 122.

[0063] By setting the skeleton structure 120 to consist of a first skeleton 121 and a second skeleton 122, the manufacturing difficulty of the skeleton structure 120 can be reduced, thereby saving the manufacturing cost of the skeleton structure 120.

[0064] Please continue to refer to Figures 1 to 3 ,as well as Figure 5 and Figure 7 In this embodiment, the fixing part may also include an upper cover 140, and the rotating part may also include an upper rotating seat 150 rotatably disposed on the upper cover 140. The upper rotating seat 150 is opposite to the lower rotating seat 130. The upper rotating seat 150 can be circumferentially limited to cooperate with the magnet 020. The upper cover 140 is detachably fixedly connected to the frame structure 120.

[0065] After inserting the magnet 020 into the insertion hole of the lower rotating seat 130, the upper cover 140 can be placed on the frame structure 120, so that the upper rotating seat 150 and the magnet 020 are circumferentially limited. At this time, the lower end and the upper end of the magnet 020 are circumferentially limited with the lower rotating seat 130 and the upper rotating seat 150, respectively. This ensures that when the magnet 020 is subjected to torque and rotates, both the lower end and the upper end of the magnet 020 can be supported by the rotation of the corresponding rotating seat. The lower rotating seat 130 and the upper rotating seat 150 rotate synchronously with the magnet 020, avoiding the situation where the magnet 020 is offset or shaken due to the unfixed end of the magnet 020. This ensures that the magnet 020 always rotates around the same axis, thereby ensuring the reliability of the magnetization angle detection of the magnet 020.

[0066] Please continue to refer to Figure 3 Specifically, the upper rotating base 150 is also provided with a rectangular cross-section insertion hole for insertion and mating with the upper end of the magnet 020. This design results in a simple structure and reliable positioning.

[0067] Please continue to refer to Figure 1 and Figure 2 In this embodiment, the upper cover 140 is detachably and fixedly connected to the frame structure 120 by a first screw 170. Specifically, the top of the frame structure 120 is provided with a first threaded hole, and the upper cover 140 is provided with a first through hole. The first screw 170 passes through the first through hole of the upper cover 140 and is screwed into the first threaded hole of the frame structure 120. This arrangement ensures the reliability of the connection between the upper cover 140 and the frame structure 120, and facilitates installation and disassembly.

[0068] Please continue to refer to Figure 3 In this embodiment, the base 110 is detachably and fixedly connected to the frame structure 120 by a second screw 180. Specifically, the bottom of the frame structure 120 is provided with a second threaded hole, and the base 110 is provided with a second through hole. The second screw 180 passes through the second through hole of the base 110 and is screwed into the second threaded hole of the frame structure 120. This arrangement ensures the reliability of the connection between the base 110 and the frame structure 120 and facilitates the disassembly and maintenance of the tooling 010 in this embodiment.

[0069] Please continue to refer to Figure 2 , Figure 3 and Figure 5 In this embodiment, a bearing 160 is provided between the upper rotating seat 150 and the upper cover 140, and a bearing 160 is provided between the lower rotating seat 130 and the base 110. This arrangement, while enabling the upper rotating seat 150 to rotate with the upper cover 140 and the lower rotating seat 130 to rotate with the base 110, also ensures the rotational accuracy of the upper rotating seat 150 and the lower rotating seat 130, thereby further improving the accuracy of detecting the magnetization angle of the magnet 020.

[0070] Specifically, in this embodiment, the bearing 160 disposed between the upper rotating seat 150 and the upper cover 140, and the bearing 160 disposed between the lower rotating seat 130 and the base 110, are rolling bearings. This arrangement can reduce the frictional resistance between the upper rotating seat 150 and the upper cover 140 and between the lower rotating seat 130 and the base 110, improve the smoothness of rotation of the upper rotating seat 150 and the lower rotating seat 130, and reduce the noise during the magnetization angle detection process of the magnet 020.

[0071] Please continue to refer to Figure 1 , Figure 2 and Figure 4 In this embodiment, the display unit includes a pointer 300 and a scale 141 used in conjunction with the pointer 300. Specifically, the pointer 300 is fixedly connected to the upper rotating base 150, and the scale 141 is disposed on the upper cover 140.

[0072] When the magnet 020 rotates in the receiving cavity 400, the upper rotating seat 150 rotates synchronously. At the same time, the pointer 300, which is fixedly connected to the upper rotating seat 150, rotates to the corresponding scale 141. At this time, the scale 141 displays the magnetization angle of the magnet 020.

[0073] With this display unit configuration, when the magnet 020 rotates under the action of the stator 200, the magnetization angle of the magnet 020 will be directly displayed through the cooperation of the pointer 300 and the scale 141, clearly reflecting the angle that the magnet 020 has rotated through. This makes it easy for users to directly read the magnetization angle of the magnet 020, which is simple and easy to use.

[0074] Please continue to refer to Figure 1 and Figure 2 In this embodiment, the pointer 300 is fixed to the upper rotating seat 150 by a third screw 190. Specifically, the upper rotating seat 150 is provided with a third threaded hole, the pointer 300 is provided with a third through hole, and the third screw 190 passes through the third through hole and is screwed into the third threaded hole to fix the pointer 300 in the upper rotating seat 150.

[0075] Figure 8 This is a schematic diagram illustrating the steps for determining the dimensions of the stator 200 in the tooling fabrication method provided in this embodiment. (See diagram below.) Figure 8 As shown, this embodiment also provides a tooling manufacturing method for manufacturing the above-mentioned tooling 010, including the step of determining the dimensions of the stator 200. Specifically, the step of determining the dimensions of the stator 200 includes:

[0076] S100: Using finite element software, the width L of the first stator tooth 211 and the second stator tooth 221, as well as the radius R of their arc surfaces facing the receiving cavity 400, are initially determined based on the set magnet 020 dimensions.

[0077] S200: Calculate the torque of magnet 020 based on the magnetization angle of magnet 020;

[0078] S300: When the magnetization angle of magnet 020 is aligned with the first stator tooth 211 and the second stator tooth 221, determine whether the torque of magnet 020 is 0 Nm; if the torque of magnet 020 is not 0 Nm, execute step S310: adjust L and R; if the torque of magnet 020 is 0 Nm, execute step S400.

[0079] S400: Calculate whether different magnetization angles of magnet 020 meet the detection purpose; if different magnetization angles of magnet 020 do not meet the detection purpose, continue to execute step S310; if different magnetization angles of magnet 020 meet the detection purpose, execute step S500.

[0080] S500: Complete the determination of the stator 200 dimensions.

[0081] This tooling manufacturing method, based on the premise that magnet 020 is in equilibrium when its torque is 0 Nm, uses finite element method software to determine the corresponding dimensions of the first stator tooth 211 and the second stator tooth 221 of the stator 200 used for detecting the magnetization angle of magnet 020. This enables the detection of different magnetization angles of magnet 020, improving the adaptability of the aforementioned tooling 010 used for detecting the magnetization angle of magnet 020. Furthermore, determining the corresponding dimensions of the first stator tooth 211 and the second stator tooth 221 using finite element method software enables precise angle tracking, and the determined dimensions of stator 200 are highly accurate.

[0082] Figure 9 A schematic diagram showing the torque experienced by a magnet 020 when it rotates through different angles at different magnetization angles. Figure 9This diagram illustrates the torque experienced by magnet 020 when it rotates through different angles (25°, 26°, 27°, 28°, and 29°). The diagram shows that when the magnetization angle θ is 25°, the torque experienced by magnet 020 after rotating 25 degrees is 0 Nm. Similarly, when the magnetization angle θ is a set angle, the torque experienced by magnet 020 after rotating through that set angle is 0 Nm, thus allowing the detection of the magnetization angle.

[0083] This invention utilizes finite element software and a method based on the principle that magnet 020 is in equilibrium when its torque is 0 Nm to determine the corresponding dimensions of the stator 200 used to detect the magnetization angle of magnet 020. It also designs corresponding fixing and detection parts, which, after assembly, can be used to detect the magnetization angle of magnet 020, effectively solving the technical problem that existing technologies cannot detect the magnetization angle of magnet 020.

[0084] This tooling fabrication method enables precise angle tracking through a stator structure designed using finite element methods. By adjusting the stator tooth width L and inner diameter R, the angle through which the tilted magnetizing magnet rotates within the stator can be adjusted, thereby enabling the detection of the magnetizing angle.

[0085] While the present invention has been disclosed above, it is not limited thereto. Any person skilled in the art can make various modifications and alterations without departing from the spirit and scope of the invention; therefore, the scope of protection of the present invention should be determined by the scope defined in the claims.

[0086] Finally, it should be noted that in this document, relational terms such as "first" and "second" are used only to distinguish one entity or operation from another, and do not necessarily require or imply any such actual relationship or order between these entities or operations. Furthermore, the term "comprising" or any other variations thereof is intended to cover non-exclusive inclusion, such that a process, method, article, or apparatus that comprises a list of elements includes not only those elements but also other elements not expressly listed, or elements inherent to such a process, method, article, or apparatus. Without further limitations, an element defined by the phrase "comprising one..." does not exclude the presence of other identical elements in the process, method, article, or apparatus that includes said element.

[0087] In the above embodiments, descriptions of directions such as "up", "down", and "side" are based on the accompanying drawings.

[0088] The above description of the disclosed embodiments enables those skilled in the art to make or use the invention. Various modifications to these embodiments will be readily apparent to those skilled in the art, and the general principles defined herein may be implemented in other embodiments without departing from the spirit or scope of the invention. Therefore, the invention is not to be limited to the embodiments shown herein, but is to be accorded the widest scope consistent with the principles and novel features disclosed herein.

Claims

1. A fixture for detecting the magnetization angle of a magnet, characterized in that, The fixture has a hollow receiving cavity (400) configured to receive a magnet (020). The fixture includes a fixed base (100) and a stator (200) made of magnetically conductive material, the stator (200) surrounding the receiving cavity (400). The stator (200) includes a first stator tooth (211) and a second stator tooth (221) disposed opposite to each other on both sides of the receiving cavity (400). The stator (200) is used to apply torque to the magnet (020); the fixed base (100) includes a fixed part, a rotating part, and a display part, the stator (200) is mounted on the fixed part, the rotating part is used to rotate synchronously with the magnet (020), and the display part is configured to display the angle rotated by the rotating part; the stator (200) includes a first stator lobe (210) and a second stator lobe (220) disposed opposite to each other, wherein the first stator lobe (210) has a first stator tooth ( 211) and a first limiting groove (212) respectively disposed on both sides of the first stator tooth (211), the second stator lobe (220) has the second stator tooth (221) and a second limiting groove (222) respectively disposed on both sides of the second stator tooth (221); the fixing part includes a skeleton structure (120), the outer wall of the skeleton structure (120) is provided with a receiving part (124) communicating with the receiving cavity (400), the first stator lobe (210) passes through the first limiting groove (212) The first stator tooth (211) is inserted into the receiving part (124) and the second stator lobe (220) is fastened to the skeleton structure (120) through the second limiting groove (222). The second stator tooth (221) is inserted into the receiving part (124). The outer wall of the skeleton structure (120) is provided with a positioning flange (123). The first stator lobe (210) and the second stator lobe (220) are both supported by the positioning flange (123).

2. The fixture for detecting the magnetization angle of a magnet according to claim 1, characterized in that, The fixing part includes a base (110), the frame structure (120) is fixedly disposed on the base (110), and the stator (200) is mounted on the frame structure (120); the rotating part includes a lower rotating seat (130), which is rotatably disposed on the base (110).

3. The fixture for detecting the magnetization angle of a magnet according to claim 2, characterized in that, The base (110) is provided with a positioning groove (111), and the skeleton structure (120) is installed in the positioning groove (111).

4. The fixture for detecting the magnetization angle of a magnet according to claim 3, characterized in that, The skeleton structure (120) is mounted on the positioning groove (111) via the positioning flange (123), and the stator (200) is supported on the positioning flange (123).

5. The fixture for detecting the magnetization angle of a magnet according to claim 4, characterized in that, The skeleton structure (120) includes a first skeleton (121) and a second skeleton (122) arranged opposite to each other. The first skeleton (121) and the second skeleton (122) are spaced apart, and the gap between them forms the receiving portion (124). One of the first limiting grooves (212) of the first stator lobe (210) is fastened to the first skeleton (121), and the other first limiting groove (212) is fastened to the second skeleton (122). One of the second limiting grooves (222) of the second stator lobe (220) is fastened to the first skeleton (121), and the other second limiting groove (222) is fastened to the second skeleton (122).

6. The fixture for detecting the magnetization angle of a magnet according to any one of claims 2-5, characterized in that, The fixing part also includes an upper cover (140), and the rotating part also includes an upper rotating seat (150) rotatably disposed on the upper cover (140). The upper rotating seat (150) is opposite to the lower rotating seat (130). The upper rotating seat (150) can be circumferentially limited to cooperate with the magnet (020). The upper cover (140) is detachably fixed to the skeleton structure (120).

7. The fixture for detecting the magnetization angle of a magnet according to claim 6, characterized in that, A bearing (160) is provided between the upper rotating seat (150) and the upper cover (140), and / or a bearing (160) is provided between the lower rotating seat (130) and the base (110).

8. The fixture for detecting the magnetization angle of a magnet according to claim 6, characterized in that, The display unit includes a pointer (300) and a scale (141) used in conjunction with the pointer (300), wherein the pointer (300) is fixedly connected to the upper rotating base (150), and the scale (141) is disposed on the upper cover (140).

9. A method for manufacturing tooling, characterized in that, A tooling for manufacturing any one of claims 1-8 includes the step of determining the dimensions of a stator (200), the step of determining the dimensions of the stator (200) comprising: Using finite element software, the width L of the first stator tooth (211) and the second stator tooth (221), as well as the radius R of their arc surfaces facing the receiving cavity (400), are initially determined based on the set magnet (020) dimensions. Calculate the torque of magnet (020) based on the magnetization angle of magnet (020); When the magnetization angle of the magnet (020) is aligned with the first stator tooth (211) and the second stator tooth (221), determine whether the torque of the magnet (020) is 0 Nm; if the torque of the magnet (020) is not 0 Nm, adjust L and R. If the torque of magnet (020) is 0 Nm, calculate whether different magnetization angles of magnet (020) meet the detection purpose; if different magnetization angles of magnet (020) do not meet the detection purpose, continue to adjust L and R; If different magnetization angles of the magnet (020) meet the testing objectives, the size of the stator (200) is determined.

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