Detection jig for central magnetic field of magnetic shoe

By designing a magnetic field detection fixture for the center of the magnetic tile, and utilizing a combination structure of frame, sleeve, rotating base and material placement base, the probe can be accurately positioned, solving the problems of low efficiency and inaccuracy of existing detection methods, and improving the accuracy and efficiency of detection.

CN223870809UActive Publication Date: 2026-02-03GUANGDONG HEISHI PERMANENT MAGNET MATERIAL CO LTD
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Patent Information

Application Number
CN202520353346.3
Authority / Receiving Office
CN · China
Patent Type
Utility models(China)
Current Assignee / Owner
Filing Date
2025-02-28
Publication Date
2026-02-03
Estimated Expiration
2035-02-28

AI Technical Summary

Technical Problem

Existing methods for detecting the magnetic field at the center of magnetic tiles are inefficient and their accuracy is greatly affected by human factors. They cannot accurately locate the center of the magnetic tile, resulting in inaccurate detection data.

Method used

A magnetic field detection fixture for the center of a magnetic tile was designed. Through the combined structure of the frame, sleeve, rotating base and material holder, the detection end of the probe is accurately positioned at the center of the workpiece. The rotating base and material holder are driven to rotate by the driving component to achieve coaxial rotation of the workpiece. Combined with the sliding of the clamping block and the fixing component, the accurate positioning of the detection end of the probe is ensured.

Benefits of technology

It improves the accuracy and efficiency of magnetic field detection at the center of the magnetic tile, reduces human error, and meets the needs of large-scale industrial production.

✦ Generated by Eureka AI based on patent content.

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Abstract

The utility model aims to provide a magnetic shoe center magnetic field detection jig, which comprises a probe, a detector, a frame body and a detection assembly, the frame body is provided with a through hole, the detection assembly comprises a driving piece, a fixing piece, a sleeve, a clamping block, a rotating seat and a material placing seat, the driving piece is arranged on the frame body, the fixing piece is arranged on the frame body, the sleeve is arranged on the frame body, and the clamping block is arranged on the rotating seat. The sleeve and the through hole are coaxially communicated, the clamping block is arranged on the fixing piece in a sliding mode, the probe is arranged on the clamping block, the detection end of the probe coaxially stretches into the through hole and stretches out of the end, away from the through hole, of the sleeve, the sleeve is sleeved with the rotating seat, the rotating seat is connected with the driving piece in a sleeved mode, the sleeve is sleeved with the material containing seat, and the material containing seat is connected with the driving piece in a sleeved mode. The end, close to the rotating base, of the material containing base is meshed with the rotating base, the end, away from the rotating base, of the material containing base is used for bearing a workpiece, and the driving piece drives the rotating base to rotate relative to the sleeve so that the material containing base can drive the workpiece to rotate with the axis of the sleeve as the center. Therefore, the detection precision and the detection efficiency are improved.
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Description

Technical Field

[0001] This utility model relates to the technical field of magnetic material manufacturing, and in particular to a magnetic tile center magnetic field detection fixture. Background Technology

[0002] In modern industrial production, magnetic tiles, as important magnetic components, are widely used in equipment such as motors and sensors. The strength and distribution of the central magnetic field of the magnetic tile have a crucial impact on the performance of the equipment it is used in. For example, in motors, the magnetic field performance of the magnetic tile directly affects the motor's output torque, efficiency, and operational stability. If the central magnetic field of the magnetic tile does not meet the requirements, the motor may experience insufficient torque, excessive overheating, or even failure to operate normally. Currently, the detection of the central magnetic field of magnetic tiles mainly relies on manual measurement using Hall effect sensors or gaussmeters.

[0003] However, existing methods for detecting the central magnetic field of magnetic tiles have the following shortcomings in practical applications: Current detection methods involve manually inserting a probe into the workpiece using a handheld testing device. This method is not only inefficient and unsuitable for large-scale industrial production, but its accuracy is also significantly affected by human factors, resulting in substantial deviations in test results from different operators. Furthermore, this handheld method makes it impossible to accurately locate the center of the magnetic tile, leading to inaccurate detection positions and affecting the reliability of the test data. Therefore, this application proposes a magnetic tile central magnetic field detection fixture. Utility Model Content

[0004] The purpose of this invention is to overcome the shortcomings of the prior art and provide a magnetic tile center magnetic field detection fixture that allows the detection end of the probe to be accurately located at the center of the workpiece, thereby improving the accuracy and efficiency of detection.

[0005] The objective of this utility model is achieved through the following technical solution:

[0006] A magnetic field detection fixture for the center of a magnetic tile includes a probe and a detection instrument, and further includes:

[0007] The frame, wherein the frame has through holes; and

[0008] The detection assembly includes a drive component, a fixing component, a sleeve, a clamping block, a rotating base, and a material placement seat. The drive component is mounted on the frame, the fixing component is mounted on the frame, the sleeve is mounted on the frame and coaxially connected to the through hole, the clamping block is slidably mounted on the fixing component, the probe is mounted on the clamping block, the detection end of the probe coaxially extends into the through hole and protrudes from the end of the sleeve away from the through hole, the rotating base is sleeved on the sleeve and is sleeved with the drive component, the material placement seat is sleeved on the sleeve, and the end of the material placement seat near the rotating base engages with the rotating base, while the end of the material placement seat away from the rotating base is used to support the workpiece. The drive component drives the rotating base to rotate relative to the sleeve, so that the material placement seat drives the workpiece to rotate around the axis of the sleeve.

[0009] Optionally, both the rotating base and the material placement seat are annular structures, and the inner diameters of both the rotating base and the material placement seat are larger than the outer diameter of the sleeve.

[0010] Optionally, the rotating base and the material placement base are each provided with matching teeth on the ends that are close to each other.

[0011] Optionally, an annular groove is provided on the outer wall of the rotating base, and the output end of the driving component is sleeved with the annular groove.

[0012] Optionally, the material placement seat is provided with a clamping platform for placing workpieces.

[0013] Optionally, a limiting block is also provided on the material placement seat, and the limiting block is located on the outer wall of the card table.

[0014] Optionally, the fixing member includes a sliding column, which is disposed on the frame. The clamping block is sleeved on the sliding column and moves up and down relative to the sliding column so that the clamping block drives the detection end of the probe to extend into or away from the through hole.

[0015] Optionally, the fixing component further includes a screw seat and a screw block. The screw seat is disposed on the slide column, and the screw block has a circular hole. The screw block is rotatably disposed in the circular hole. The end of the clamping block away from the through hole extends into the circular hole and is screwed to the screw block, so that the screw block drives the clamping block to move up and down relative to the slide column.

[0016] Optionally, the clamping block has a through hole that extends through both ends of the clamping block, and the probe is located inside the through hole.

[0017] Optionally, the clamping block is further provided with a screw hole, which communicates with the through hole.

[0018] Compared with the prior art, the present invention has at least the following advantages:

[0019] This utility model discloses a central magnetic field testing fixture for magnetic tiles. A sleeve is mounted on a frame, and the sleeve is coaxially connected to a through hole. This allows the rotating base and the material holder, both mounted on the sleeve, to rotate coaxially with the through hole, thereby causing the workpiece to rotate as well. Furthermore, a clamping block drives the probe to slide on two sliding pillars, ensuring that the probe's detection end extends coaxially into the through hole and is positioned at the center of the workpiece. Simultaneously, the operator only needs to place the workpiece on the material holder, eliminating the need to hold the workpiece in one hand and the probe in the other for testing. This improves the accuracy and efficiency of central magnetic field detection. Attached Figure Description

[0020] To more clearly illustrate the technical solutions of the embodiments of this utility model, the drawings used in the embodiments will be briefly introduced below. It should be understood that the following drawings only show some embodiments of this utility model and should not be regarded as a limitation on the scope. For those skilled in the art, other related drawings can be obtained based on these drawings without creative effort.

[0021] Figure 1 This is a schematic diagram of the structure of a magnetic tile center magnetic field inspection fixture according to one embodiment of the present invention;

[0022] Figure 2 This is a structural schematic diagram of the installation position of the detection component according to one embodiment of the present invention;

[0023] Figure 3 This is a structural schematic diagram of the rotating base mounting position according to one embodiment of the present invention;

[0024] Figure 4 This is an exploded view of the inspection component according to one embodiment of the present invention;

[0025] Figure 5 This is a schematic diagram of the probe mounting position according to one embodiment of the present invention;

[0026] Figure 6 This is an exploded structural diagram of the probe mounting position according to one embodiment of the present invention;

[0027] Figure 7 This is a schematic diagram of the engagement state of the rotary seat and the material placement seat according to one embodiment of the present invention;

[0028] Figure 8 This is a schematic diagram of the structure of the clamping block according to one embodiment of the present invention;

[0029] Figure 9 This is a schematic diagram of the material placement seat according to one embodiment of the present invention;

[0030] Figure 10 This is a schematic diagram of the structure of the rotating base according to one embodiment of the present invention;

[0031] Figure 11 This is a schematic diagram of the top plate according to one embodiment of the present invention.

[0032] Explanation of reference numerals in the attached figures:

[0033] 1. Magnetic tile center magnetic field detection fixture; 10. Probe; 20. Detector; 30. Frame; 31. Through hole; 32. Base plate; 33. Support plate; 34. Top plate; 341. Groove; 40. Detection component; 41. Drive component; 411. Motor; 412. Drive wheel; 413. Belt; 42. Fixture; 421. Sliding column; 422. Screw seat; 4221. Upper plate; 4222. Lower plate; 423. Screw block; 4231. Round hole; 43. Sleeve; 44. Clamping block; 441. Protruding column; 442. Through hole; 443. Screw hole; 45. Rotary seat; 451. Slot; 46. Material holder; 461. Clamping platform; 462. Limiting block; 47. Locking plate; 50. Workpiece. Detailed Implementation

[0034] To facilitate understanding of this utility model, a more comprehensive description will be provided below with reference to the accompanying drawings. The drawings illustrate preferred embodiments of this utility model.

[0035] In the description of the embodiments of this utility model, it should be understood that the terms "length", "width", "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", etc., indicate the orientation or positional relationship based on the orientation or positional relationship shown in the drawings. They are only for the convenience of describing the embodiments of this utility model and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation. Therefore, they should not be construed as limitations on this utility model.

[0036] Furthermore, the terms "first" and "second" are used for descriptive purposes only and should not be construed as indicating or implying relative importance or implicitly specifying the number of indicated technical features. Thus, a feature defined as "first" or "second" may explicitly or implicitly include one or more of that feature. In the description of embodiments of this utility model, "a plurality of" means two or more, unless otherwise explicitly specified.

[0037] In this embodiment of the invention, unless otherwise explicitly specified and limited, the terms "installation," "connection," "linking," and "fixing," etc., should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral part; they can refer to a mechanical connection or an electrical connection; they can refer to a direct connection or an indirect connection through an intermediate medium; they can refer to the internal communication of two components or the interaction between two components. Those skilled in the art can understand the specific meaning of the above terms in this embodiment of the invention according to the specific circumstances.

[0038] like Figures 1 to 6 As shown, in one embodiment, a magnetic field detection fixture 1 for a magnetic tile center includes a probe 10 and a detector 20, as well as a frame 30 and a detection assembly 40. The frame 30 has a through hole 31. The detection assembly 40 includes a drive member 41, a fixing member 42, a sleeve 43, a clamping block 44, a rotating base 45, and a material placement base 46. The drive member 41 is mounted on the frame 30, the fixing member 42 is mounted on the frame 30, the sleeve 43 is mounted on the frame 30 and coaxially connected to the through hole 31, the clamping block 44 is slidably mounted on the fixing member 42, and the probe 10 is mounted on... On the clamping block 44, the detection end of the probe 10 extends coaxially into the through hole 31 and protrudes from the end of the sleeve 43 away from the through hole 31. The rotating seat 45 is sleeved on the sleeve 43 and is sleeved with the driving member 41. The material placement seat 46 is sleeved on the sleeve 43 and the end of the material placement seat 46 near the rotating seat 45 engages with the rotating seat 45. The end of the material placement seat 46 away from the rotating seat 45 is used to support the workpiece 50. The driving member 41 drives the rotating seat 45 to rotate relative to the sleeve 43 so that the material placement seat 46 drives the workpiece 50 to rotate around the axis of the sleeve 43.

[0039] It should be noted that the frame 30 includes a base plate 32, a support plate 33, and a top plate 34. The two ends of the support plate 33 are connected to the base plate 32 and the top plate 34 respectively, making the frame 30 tend to have a C-shaped structure. A through hole 31 is opened on the top plate 34 and penetrates the two opposing sides of the top plate 34. Further, the drive component 41 is a power supply device. For example, the drive component 41 includes a motor 411, a drive wheel 412, and a belt 413. The motor 411 is disposed on the side of the top plate 34 closest to the base plate 32, and the output shaft of the motor 411 passes through the top plate 34 and extends from the side of the top plate 34 away from the base plate 32. The drive wheel 412 is sleeved on the output shaft of the motor 411, and the belt 413 is sleeved on the drive wheel 412 and the rotating base 45 respectively, so that the motor 411 can drive the rotating base 45 to rotate relative to the sleeve 43 through the drive wheel 412. Furthermore, the sleeve 43 is a tubular structure with both ends connected. One end of the sleeve 43 is located on the side of the top plate 34 away from the motor 411, and the sleeve 43 is coaxially connected to the through hole 31. Furthermore, the clamping block 44 is slidably mounted on the fixing member 42 along the axial direction of the through hole 31, so that the clamping block 44 can drive the probe 10 to approach or move away from the through hole 31. Since the sleeve 43 is coaxially connected to the through hole 31, when the clamping block 44 moves upward relative to the frame 30, the clamping block 44 drives the detection end of the probe 10 to coaxially extend into the through hole 31 and extend out from the end of the sleeve 43 away from the through hole 31.

[0040] It should be noted that the rotating base 45 is sleeved on the sleeve 43, and the rotating base 45 is sleeved with the driving component 41. The rotating base 45 has a ring structure, and the inner diameter of the rotating base 45 is larger than the outer diameter of the sleeve 43. The inner side wall of the rotating base 45 fits into the outer side wall of the sleeve 43, so that the rotating base 45 can be sleeved on the sleeve 43 with the axis of the sleeve 43 as the center. An annular groove is opened on the outer side wall of the rotating base 45, so that one end of the belt 413 can be sleeved on the outer side wall of the rotating base 45. In this way, the motor 411 can drive the rotating base 45 to rotate with the axis of the sleeve 43 as the center.

[0041] It should be noted that the material holder 46 is fitted onto the sleeve 43. The material holder 46 is also an annular structure, and its inner diameter is the same as that of the rotating seat 45, allowing it to rotate around the axis of the sleeve 43 after being fitted onto it. Furthermore, the rotating seat 45 is located at the end of the sleeve 43 closest to the through hole 31, while the material holder 46 is located at the end of the sleeve 43 furthest from the through hole 31.

[0042] like Figures 1 to 4 , Figure 7 , Figures 9 to 10 As shown, in one embodiment, the rotating base 45 and the material placement base 46 are both provided with matching teeth on the ends that are close to each other.

[0043] It should be noted that the end face of the rotary seat 45 near the material holder 46 is provided with several teeth, and each tooth is continuously arranged in the circumferential direction of the rotary seat 45. Similarly, the end face of the material holder 46 near the rotary seat 45 is also provided with several teeth, and each tooth is continuously arranged in the circumferential direction of the material holder 46. When the material holder 46 is fitted onto the sleeve 43, the teeth on the material holder 46 mesh with the teeth on the rotary seat 45. Thus, when the drive member 41 drives the rotary seat 45 to rotate relative to the sleeve 43, the operator can fit the material holder 46 onto the sleeve 43, ensuring that the teeth on the material holder 46 mesh with the teeth on the rotary seat 45, thereby causing the rotary seat 45 to drive the material holder 46 to rotate relative to the sleeve 43. Furthermore, the end of the material holder 46 furthest from the rotating base 45 is used to support the workpiece 50. When the operator places the material holder 46, which supports the workpiece 50, onto the sleeve 43 and engages with the rotating base 45, the rotating base 45 drives the material holder 46 to rotate around the axis of the sleeve 43, while simultaneously causing the workpiece 50 to rotate around the axis of the sleeve 43. Since the clamping block 44 drives the detection end of the probe 10 to extend coaxially into the through hole 31 and protrude from the end of the sleeve 43 furthest from the through hole 31, when the material holder 46 carries the workpiece 50 onto the sleeve 43 and rotates, the detection end of the probe 10 is coaxially located at the axis of the workpiece 50. Thus, the axis of the workpiece 50 coincides with the axis of the detection end of the probe 10, allowing the workpiece 50 to rotate around the axis of the detection end of the probe 10, thereby enabling the detection end of the probe 10 to detect the central magnetic field of the workpiece 50.

[0044] It should be noted that the magnetic tile center magnetic field detection fixture 1 of this application includes a detector 20, and a probe 10 is electrically connected to the detector 20, so that the detection end of the probe 10 can accurately transmit the center magnetic field data of the workpiece 50 to the detector 20. The operator can judge whether the center magnetic field of the workpiece 50 meets the production requirements based on the value displayed on the detector 20. This improves the accuracy and efficiency of the detection.

[0045] like Figures 3 to 4 , Figure 7 , Figure 9 As shown, in one embodiment, a tray 461 is provided on the material placement seat 46, and the tray 461 is used to place the workpiece 50.

[0046] It should be noted that the end of the material holder 46 furthest from each tooth protrudes outward in a ring shape to form a clamping platform 461. Furthermore, magnetic tiles are mounted on the workpiece 50; for example, the magnetic tiles have an arc-shaped structure, and both magnetic tiles are mounted on the inner wall of a cylindrical shell, with the two magnetic tiles facing each other. Furthermore, since the rotating base 45 is located at the end of the sleeve 43 near the through hole 31, and the material holder 46 is located at the end of the sleeve 43 furthest from the through hole 31, when the material holder 46 is fitted onto the sleeve 43, the material holder 46 is positioned above the rotating base 45, while the clamping platform 461 is located on the end of the material holder 46 furthest from the rotating base 45. This allows the workpiece 50 to be vertically and downwardly clamped onto the clamping platform 461, thereby causing both magnetic tiles on the inner wall of the workpiece 50 to rotate around the detection end of the probe 10. In this way, the detection end of the probe 10 can detect the central magnetic field of the two magnetic tiles.

[0047] like Figures 1 to 4 , Figure 7 , Figure 9 As shown, in one embodiment, a limiting block 462 is also provided on the material placement seat 46, and the limiting block 462 is located on the outer wall of the card table 461.

[0048] It should be noted that because the housing for mounting the magnetic tile has a cylindrical structure, when the housing is fastened onto the mounting platform 461, there is no force point between the mounting platform 461 and the housing. This makes it easy for slippage to occur when the material placement seat 46 rotates the housing, causing the housing to remain stationary. Therefore, a latch is provided at one end of the cylindrical housing. When the cylindrical housing is fastened onto the mounting platform 461, the latch engages with the limiting block 462. This allows the limiting block 462 to drive the cylindrical housing to rotate through the latch when the material placement seat 46 rotates, ensuring the accuracy of the central magnetic field detection.

[0049] like Figures 1 to 5 As shown, in one embodiment, the fixing member 42 includes a sliding column 421, which is disposed on the frame 30. The clamping block 44 is sleeved on the sliding column 421. The clamping block 44 moves up and down relative to the sliding column 421 so that the clamping block 44 drives the detection end of the probe 10 to extend into or away from the through hole 31.

[0050] It should be noted that there are two sliding pillars 421, both of which are located on the side of the top plate 34 facing the bottom plate 32, and are situated on opposite sides of the through hole 31. The two ends of the clamping block 44 are respectively fitted onto the two sliding pillars 421, allowing the clamping block 44 to slide relative to the two sliding pillars 421, moving closer to or away from the through hole 31. Furthermore, the probe 10 is mounted on the clamping block 44. When the clamping block 44 slides closer to the through hole 31, it causes the probe 10 to extend into the through hole 31, and the detection end of the probe 10 extends from the end of the sleeve 43 away from the through hole 31.

[0051] like Figures 1 to 6 As shown, in one embodiment, the fixing member 42 further includes a screw seat 422 and a screw block 423. The screw seat 422 is disposed on the slide column 421, and a circular hole 4231 is provided on the screw seat 422. The screw block 423 is rotatably disposed in the circular hole 4231. The end of the clamping block 44 away from the through hole 31 extends into the circular hole 4231 and is screwed into the screw block 423, so that the screw block 423 drives the clamping block 44 to move up and down relative to the slide column 421.

[0052] It should be noted that the two ends of the screw seat 422 are connected to two sliding posts 421 respectively. The screw seat 422 includes an upper plate 4221 and a lower plate 4222. The upper plate 4221 and the lower plate 4222 have the same structure. Both the upper plate 4221 and the lower plate 4222 have circular grooves. When the upper plate 4221 and the lower plate 4222 are engaged, they together form a circular cavity, and the screw block 423 rotates within the cavity. Furthermore, the inner bottom walls of the two circular grooves are provided with clearance holes. When the upper plate 4221 and the lower plate 4222 are engaged to form the cavity, the clearance holes on the upper plate 4221 and the lower plate 4222 together form a circular hole 4231. Furthermore, the clamping block 44 tends to have a T-shaped structure. The two opposing ends of the clamping block 44 are slidably connected to two sliding pillars 421, and the other end of the clamping block 44 protrudes towards the base plate 32 to form a protruding pillar 441. When the clamping block 44 slides close to the screw block 423, the protruding pillar 441 on the clamping block 44 extends into the circular hole 4231 from one side of the screw block 423 and extends out from the other side of the screw block 423. Furthermore, a threaded groove is formed on the outer surface of the protruding pillar 441, and the screw block 423 has a nut structure. When the protruding pillar 441 extends into the circular hole 4231, the threaded groove on the protruding pillar 441 is screwed into the screw block 423. Thus, when the screw block 423 rotates relative to the cavity under external force, it causes the clamping block 44 to slide relative to the two sliding pillars 421. This allows the clamping block 44 to cause the detection end of the probe 10 to extend into or exit the through hole 31, thereby adjusting the depth of the probe 10's detection end into the workpiece 50 to meet the detection requirements of workpieces 50 of various heights and dimensions. Furthermore, the clamping block 44 has a through hole 442 that extends through the entire clamping block 44 from one end of the protrusion 441. This allows the probe 10 to extend into the protrusion 441 from the end near the screw block 423, and the detection end of the probe 10 to extend out from the end of the clamping block 44 away from the through hole 31.

[0053] like Figures 4 to 6 , Figure 8 As shown, in one embodiment, the clamping block 44 is also provided with a screw hole 443, which is connected to the through hole 442.

[0054] It should be noted that the screw hole 443 is opened on the side of the clamping block 44, and the axial direction of the screw hole 443 is perpendicular to the axial direction of the through hole 442. In this way, when the probe 10 is located in the through hole 442, the probe 10 can be tightened by inserting a bolt through the screw hole 443, so that the probe 10 is fixed in the through hole 442.

[0055] like Figure 4 , Figure 11 In one embodiment, a groove 341 is provided on the top plate 34, and a through hole 31 is located on the inner bottom wall of the groove 341. The end of the rotary seat 45 away from the material placement seat 46 is located in the groove 341. A slot 451 is provided on the outer surface of the rotary seat 45. The slot 451 is an annular groove structure. The detection component 40 also includes a locking piece 47, which is also an annular structure. When the rotary seat 45 is sleeved on the sleeve 43 and the end of the rotary seat 45 away from the material placement seat 46 is... When accommodated within the groove 341, the rotating base 45 is fixed to the top plate 34 with screws, and the locking plate 47 engages with the slot 451. This fixes the rotating base 45 to the top plate 34, allowing it to rotate only relative to the sleeve 43. It prevents the rotating base 45 from detaching from the sleeve 43 due to prolonged driving by the drive component 41, or from sliding up and down along the sleeve 43 under force, causing the workpiece 50 placed on the placement seat 46 to become misaligned. This ensures the stability of the magnetic tile center magnetic field detection fixture 1 during use.

[0056] The embodiments described above are merely illustrative of several implementations of this utility model, and while the descriptions are relatively specific and detailed, they should not be construed as limiting the scope of the utility model patent. It should be noted that those skilled in the art can make various modifications and improvements without departing from the concept of this utility model, and these all fall within the protection scope of this utility model. Therefore, the protection scope of this utility model patent should be determined by the appended claims.

Claims

1. A fixture for detecting the magnetic field at the center of a magnetic tile, comprising a probe and a detector, characterized in that, Also includes: The frame, wherein the frame has through holes; and The detection assembly includes a drive component, a fixing component, a sleeve, a clamping block, a rotating base, and a material placement seat. The drive component is mounted on the frame, the fixing component is mounted on the frame, the sleeve is mounted on the frame and coaxially connected to the through hole, the clamping block is slidably mounted on the fixing component, the probe is mounted on the clamping block, the detection end of the probe coaxially extends into the through hole and protrudes from the end of the sleeve away from the through hole, the rotating base is sleeved on the sleeve and is sleeved with the drive component, the material placement seat is sleeved on the sleeve, and the end of the material placement seat near the rotating base engages with the rotating base, while the end of the material placement seat away from the rotating base is used to support the workpiece. The drive component drives the rotating base to rotate relative to the sleeve, so that the material placement seat drives the workpiece to rotate around the axis of the sleeve.

2. The magnetic field detection fixture at the center of the magnetic tile according to claim 1, characterized in that, Both the rotating base and the material placement base are annular structures, and the inner diameters of both the rotating base and the material placement base are larger than the outer diameter of the sleeve.

3. The magnetic field detection fixture at the center of the magnetic tile according to claim 2, characterized in that, Both the rotating base and the material placement base have matching teeth on their respective ends that are close to each other.

4. The magnetic field detection fixture at the center of the magnetic tile according to claim 3, characterized in that, An annular groove is provided on the outer wall of the rotating base, and the output end of the driving component is sleeved in the annular groove.

5. The magnetic field detection fixture at the center of the magnetic tile according to claim 4, characterized in that, The material placement seat is equipped with a clamping platform, which is used to place the workpiece.

6. The magnetic field detection fixture at the center of the magnetic tile according to claim 5, characterized in that, The material placement seat is also provided with a limiting block, which is located on the outer side wall of the card table.

7. The magnetic field detection fixture at the center of the magnetic tile according to claim 1, characterized in that, The fixing component includes a sliding column, which is disposed on the frame. The clamping block is sleeved on the sliding column and moves up and down relative to the sliding column so that the clamping block drives the detection end of the probe to extend into or away from the through hole.

8. The magnetic field detection fixture at the center of the magnetic tile according to claim 7, characterized in that, The fixing component also includes a screw seat and a screw block. The screw seat is disposed on the sliding column, and the screw block has a circular hole. The screw block is rotatably disposed in the circular hole. The end of the clamping block away from the through hole extends into the circular hole and is screwed to the screw block, so that the screw block drives the clamping block to move up and down relative to the sliding column.

9. The magnetic field detection fixture for the center of the magnetic tile according to claim 8, characterized in that, The clamping block has a through hole that extends through both ends of the clamping block, and the probe is located inside the through hole.

10. The magnetic field detection fixture at the center of the magnetic tile according to claim 9, characterized in that, The clamping block is also provided with a screw hole, which is connected to the through hole.