Detection tool for detecting size of magnetic shoe

Abstract

The invention relates to the technical field of permanent magnetic ferrite product detection, and particularly discloses a detection tool for detecting the size of a magnetic shoe, which comprises a detection tool body and a size detection unit, the size detection unit is arranged on a detection tool measurement reference plane in the detection tool body, and a magnetic shoe body is arranged on the detection tool body. When the device is used, the magnetic shoe body is inserted between the two chord length limiting platforms, the bevel angle surface of the magnetic shoe body abuts against the two side edges of the included angle groove, after the magnetic shoe body is inserted into the testing fixture body, the chord length surface of the magnetic shoe is inserted between the two chord length limiting platforms, and the gap between the two chord length limiting platforms is 0.05-0.1 mm. At the moment, the position of the magnetic shoe body is limited by the two chord length limiting platforms, the gauge measurement reference surface is flush with the center line of the bevel angle surface in the magnetic shoe body, and the distance between the gauge measurement reference surface and the vertex of the outer arc of the magnetic shoe is measured through the size detection unit. And the distance between the midline of the bevel surface in the magnetic shoe body and the outer arc vertex of the magnetic shoe can be obtained.

Description

Technical Field

[0001] The invention belongs to the technical field of permanent ferrite product detection, and in particular relates to a detection tool for detecting the size of magnetic tiles. Background Art

[0002] Permanent ferrite products are magnetic materials made from SrO or BaO and ferric oxide through ceramic processing methods.

[0003] Motor magnets are a type of permanent magnets that are mainly used in permanent magnet motors. They are mainly used in permanent magnet DC motors. Unlike electromagnetic motors that generate magnetic potential sources through excitation coils, permanent magnet motors use permanent magnetic materials to generate constant magnetic potential sources. Permanent magnets have many advantages in replacing electric excitation, such as simple motor structure, easy maintenance, light weight, small size, reliable use, less copper, low copper consumption, and low energy consumption.

[0004] At present, it is well known that the magnetic tile is in an arc shape as a whole. Figure 1 , the magnetic tile is Figure 1 The magnetic tile body represented by the middle number 1) often involves the chord length surface of the magnetic tile, which is connected to the bevel surface. The vertical distance dimension from the horizontal center line of the bevel surface to the vertex of the outer arc of the magnetic tile must meet the requirements of the drawing tolerance. However, there are the following problems when measuring the dimension between the horizontal center line of the bevel surface of the magnetic tile and the vertex of the outer arc of the magnetic tile:

[0005] First, it is not easy to find the center line of the bevel surface. Before measuring the distance between the center line of the bevel surface and the vertex of the outer arc of the magnetic tile, it is necessary to find and mark the center line of the bevel surface.

[0006] Secondly, the overall shape of the magnetic tile is arc-shaped, and it is inconvenient to locate the vertex of the outer arc of the magnetic tile; therefore, the present application proposes a gauge for detecting the size of the magnetic tile, which can conveniently and quickly measure the distance between the center line of the bevel surface and the vertex of the outer arc of the magnetic tile. Summary of the invention

[0007] The object of the present invention is to provide a gauge for detecting the size of a magnetic tile, so as to solve the problems raised by the above-mentioned background technology.

[0008] To achieve the above-mentioned purpose, the present invention provides the following technical solutions: a gauge for detecting the size of a magnetic tile, comprising a gauge body and a size detection unit, wherein the size detection unit is arranged on a gauge measurement reference surface in the gauge body, the magnetic tile body is arranged on the gauge body, and the magnetic tile body comprises an oblique surface, a magnetic tile outer arc vertex, and a magnetic tile chord length surface;

[0009] The size detection unit is used to measure the distance between the vertex of the outer arc of the magnetic tile in the magnetic tile body and the gauge measurement reference surface in the gauge body, and the gauge measurement reference surface is flush with the midline of the bevel surface in the magnetic tile body;

[0010] A chord length limiting platform is provided in the body of the inspection tool;

[0011] An angled groove is arranged in the gauge body, and the angled groove includes two side edges. When the magnetic tile body is inserted into the gauge body, the two side edges in the gauge body respectively overlap with the two angled surfaces in the magnetic tile body.

[0012] Preferably, the size detection unit comprises a detection block, and a detection surface is arranged at the bottom of the detection block.

[0013] Preferably, the height of the chord length limiting platform is higher than the height of the chord length surface of the magnetic tile in the magnetic tile body, and the gap between the chord length surface of the magnetic tile and the chord length limiting platform is 0.05-0.1 mm.

[0014] Preferably, the gauge measurement reference surface, the chord length limiting platform and the angle groove in the gauge body are formed by one-time cutting using a wire cutting machine with slow wire.

[0015] Preferably, the gauge body is provided with a reference plane horizontal adjustment unit, the reference plane horizontal adjustment unit comprises a level and a horizontal adjustment support plate, and the level is provided on the gauge measurement reference plane.

[0016] Preferably, the horizontal adjustment support plate is arranged on the gauge body, four horizontal adjustment support plates are arranged, and the four horizontal adjustment support plates are symmetrically distributed on both sides of the gauge body in groups of two.

[0017] Preferably, a horizontal adjustment bolt is screwed into each of the horizontal adjustment support plates.

[0018] Preferably, two magnetic tile position clamping units symmetrically distributed about the center line of the magnetic tile body are provided on the upper side of the measuring reference surface of the inspection fixture.

[0019] Preferably, the magnetic tile position clamping unit comprises a clamping plate, and a clamping surface is provided on a side of the clamping plate close to the magnetic tile body, and the clamping surface is adapted to the outer wall of the magnetic tile body.

[0020] Preferably, the clamping plate fits with the upper end surface of the chord length limiting platform, and the lower end surface of the clamping plate fits with the measuring reference surface of the inspection fixture. The clamping plate is connected to the clamping bolt through a thread, and the clamping bolt is inserted into the clamping support.

[0021] Compared with the prior art, the present invention has the following beneficial effects:

[0022] 1. When the present invention is used, the magnetic tile body is inserted between the two chord length limit platforms, and the bevel surface in the magnetic tile body is made to rest on the two side edges in the angle groove. After being inserted into the inspection fixture body, the chord length surface of the magnetic tile is inserted between the two chord length limit platforms, and the gap between the two is 0.05-0.1mm. At this time, the position of the magnetic tile body is limited by the two chord length limit platforms, and the inspection fixture measurement reference surface is flush with the center line of the bevel surface in the magnetic tile body. The distance between the center line of the bevel surface in the magnetic tile body and the vertex of the outer arc of the magnetic tile is equal to the distance between the inspection fixture measurement reference surface and the vertex of the outer arc of the magnetic tile. The distance between the inspection fixture measurement reference surface and the vertex of the outer arc of the magnetic tile is measured by the size detection unit, and the distance between the center line of the bevel surface in the magnetic tile body and the vertex of the outer arc of the magnetic tile can be obtained.

[0023] 2. The present invention sets a level on the measuring reference plane of the inspection fixture to measure its horizontality, rotates the horizontal adjustment bolt to adjust the height of the horizontal adjustment support plate, thereby adjusting the horizontality of the upper inspection fixture measuring reference plane to keep it horizontal, so that the magnetic tile body is in a horizontal state during inspection.

[0024] 3. The present invention sets a magnetic tile position clamping unit on the inspection fixture body. By rotating the clamping bolt in the forward and reverse directions, the clamping plate can be driven to move toward or away from the magnetic tile body. The two clamping plates approach the magnetic tile body at the same time, and finally the magnetic tile body can be clamped. The two clamping plates move away from each other, and the magnetic tile body is not squeezed by the clamping plates. BRIEF DESCRIPTION OF THE DRAWINGS

[0025] Figure 1 It is a schematic diagram of the structure of the magnetic tile body in the present invention.

[0026] Figure 2 It is a schematic diagram of the structure of the inspection tool used for detecting the size of the magnetic tile in the present invention.

[0027] Figure 3 This is a top view of the inspection tool for inspecting the size of magnetic tiles in the present invention after the size inspection unit is removed.

[0028] Figure 4 It is a structural schematic diagram of the magnetic tile body and the angle groove in the present invention.

[0029] In the figure: 1. Magnetic tile body; 2. Inspection fixture body; 3. Inspection fixture measurement reference surface; 4. Bevel surface; 5. Magnetic tile outer arc vertex; 6. Chord length limit platform; 7. Angle groove; 8. Dimension detection unit; 9. Reference surface horizontal adjustment unit; 901. Level; 902. Horizontal adjustment bolt; 903. Horizontal adjustment support plate; 10. Magnetic tile position clamping unit; 1001. Clamping plate; 1002. Clamping bolt; 1003. Clamping support; 11. Magnetic tile chord length surface. DETAILED DESCRIPTION

[0030] The following will be combined with the drawings in the embodiments of the present invention to clearly and completely describe the technical solutions in the embodiments of the present invention. Obviously, the described embodiments are only part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the present invention.

[0031] Reference Figure 1-Figure 4 A gauge for detecting the size of a magnetic tile comprises a gauge body 2 and a size detection unit 8. The size detection unit 8 is arranged on a gauge measurement reference surface 3 in the gauge body 2. A magnetic tile body 1 is arranged on the gauge body 2. The magnetic tile body 1 comprises an oblique surface 4, a magnetic tile outer arc vertex 5, and a magnetic tile chord length surface 11. Specifically, the size detection unit 8 is used to measure the distance between the magnetic tile outer arc vertex 5 in the magnetic tile body 1 and the gauge measurement reference surface 3 in the gauge body 2, that is, Figure 2 The numerical value H shown in represents the distance between the vertex 5 of the outer arc of the middle magnetic tile in the magnetic tile body 1 and the gauge measurement reference surface 3 in the gauge body 2, and the gauge measurement reference surface 3 is flush with the midline of the bevel surface 4 in the magnetic tile body 1, and the distance is equivalent to the distance between the midpoint of the bevel surface 4 in the magnetic tile body 1 and the vertex 5 of the outer arc of the magnetic tile.

[0032] Motor magnetic tiles are a type of permanent magnet that is mainly used in permanent magnet motors. They are mainly used in permanent magnet DC motors. Unlike electromagnetic motors that generate magnetic potential sources through excitation coils, permanent magnet motors use permanent magnetic materials to generate constant magnetic potential sources. Permanent magnetic tiles have many advantages in replacing electric excitation, such as simple motor structure, convenient maintenance, light weight, small size, reliable use, less copper, low copper consumption, and low energy consumption. This solution measures the distance between the midpoint of the bevel surface 4 in the magnetic tile body 1 in the motor and the vertex 5 of the outer arc of the magnetic tile.

[0033] Below the Curie temperature, there are many small areas with spontaneous magnetic moments in pairs inside ferromagnetic or ferrimagnetic materials. Their arrangement directions are disordered. If no magnetic field is applied for magnetization, the magnetic moment is zero as a whole. These small areas are called magnetic tiles.

[0034] There is a strong "exchange coupling" effect between adjacent electrons in ferromagnetic materials. In the absence of an external magnetic field, their spin magnetic moments can be "spontaneously" arranged neatly in small areas to form small spontaneous magnetization areas, called magnetic tiles. In unmagnetized ferromagnetic materials, although each magnetic tile has a definite spontaneous magnetization direction and has strong magnetism, the magnetization directions of a large number of magnetic tiles are different, so the entire ferromagnetic material is not magnetic.

[0035] When the ferromagnetic material is in an external magnetic field, the volume of the magnetic tiles whose spontaneous magnetization direction forms a small angle with the external magnetic field direction expands as the external magnetic field increases, causing the magnetization direction of the magnetic tiles to further turn to the direction of the external magnetic field.

[0036] The size detection unit 8 includes a detection block. When detecting the size of the magnetic tile body 1, the detection block is against the vertex 5 of the outer arc of the magnetic tile. A detection surface is provided at the bottom of the detection block, which can be against the topmost point of the magnetic tile body 1, which is the vertex 5 of the outer arc of the magnetic tile.

[0037] In order to measure the value of H, it is necessary to fix the magnetic tile body 1 on the gauge body 2. Therefore, a chord length limit platform 6 is provided in the gauge body 2. The height of the chord length limit platform 6 is higher than the height of the chord length surface 11 of the magnetic tile in the magnetic tile body 1. The gap between the chord length surface 11 of the magnetic tile and the chord length limit platform 6 is 0.05-0.1mm. The distance between the two is short, so the position of the magnetic tile body 1 can be calibrated, which is convenient for the subsequent measurement of the H value.

[0038] Specifically, an angle groove 7 is provided in the gauge body 2, and the angle groove 7 includes two side edges. When the magnetic tile body 1 is inserted into the gauge body 2, the two side edges in the gauge body 2 coincide with the two beveled surfaces 4 in the magnetic tile body 1 respectively, and there is space between the lower end of the inner arc of the magnetic tile in the magnetic tile body 1 and the angle groove 7. The existence of the space allows the chord length surface 11 of the magnetic tile to better fit the angle groove 7 in the gauge body 2.

[0039] The gauge measuring reference surface 3, the chord length limiting platform 6, and the angle groove 7 in the gauge body 2 are formed by one-time cutting of the wire cutting machine, that is, the gauge measuring reference surface 3, the chord length limiting platform 6, and the angle groove 7 are designed as an integrated whole, and the three are cut and processed in a single time. Cut and processed in a single time, fewer processes are required for processing, and the three integrated designs have better integrity, better anti-extrusion and pulling capabilities, and when they expand and contract due to temperature changes, the sizes of the three change synchronously, which has less impact on the results of the detected size, and the measured data is more accurate.

[0040] When in use, the magnetic tile body 1 is inserted between the two chord length limit platforms 6, and the bevel surface 4 in the magnetic tile body 1 is made to rest on the two side edges of the angle groove 7. After being inserted into the inspection fixture body 2, the chord length surface 11 of the magnetic tile is inserted between the two chord length limit platforms 6, and the gap between the two is 0.05-0.1mm. At this time, the position of the magnetic tile body 1 is limited by the two chord length limit platforms 6, and the inspection fixture measurement reference surface 3 is flush with the center line of the bevel surface 4 in the magnetic tile body 1, and the distance between the center line of the bevel surface 4 in the magnetic tile body 1 and the magnetic tile outer arc vertex 5 is equal to the distance between the inspection fixture measurement reference surface 3 and the magnetic tile outer arc vertex 5. The distance between the inspection fixture measurement reference surface 3 and the magnetic tile outer arc vertex 5 is measured by the size detection unit 8, and the distance between the center line of the bevel surface 4 in the magnetic tile body 1 and the magnetic tile outer arc vertex 5 can be obtained.

[0041] In further embodiments, reference may be made to Figure 2 , Figure 3 The gauge body 2 is provided with a reference plane level adjustment unit 9, which can adjust the level of the gauge measurement reference plane 3 to keep the gauge measurement reference plane 3 level during the measurement process, thereby making the value measured by the size detection unit 8 more accurate.

[0042] Specifically, the reference plane horizontal adjustment unit 9 includes a spirit level 901 and a horizontal adjustment support plate 903. The spirit level 901 is arranged on the gauge measuring reference plane 3, and is used to measure the horizontality of the gauge measuring reference plane 3. The horizontal adjustment support plate 903 is arranged on the gauge body 2. There are four horizontal adjustment support plates 903, and the four horizontal adjustment support plates 903 are symmetrically distributed on both sides of the gauge body 2 in groups of two. A horizontal adjustment bolt 902 is screwed into each horizontal adjustment support plate 903. The horizontal adjustment bolt 902 is rotated to adjust the height of the horizontal adjustment support plate 903, thereby adjusting the horizontality of the upper gauge measuring reference plane 3 to keep it horizontal.

[0043] In a further embodiment, in order to ensure that the position of the magnetic tile body 1 does not shake during the measurement process, two magnetic tile position clamping units 10 are arranged on the upper side of the measuring reference surface 3 of the inspection fixture and are symmetrically distributed with respect to the center line of the magnetic tile body 1. The magnetic tile position clamping unit 10 includes a clamping plate 1001. A clamping surface is arranged on the side of the clamping plate 1001 close to the magnetic tile body 1. The clamping surface is adapted to the outer wall of the magnetic tile body 1. The clamping plate 1001 is fitted with the upper end surface of the chord length limit platform 6, and the lower end surface of the clamping plate 1001 is fitted with the measuring reference surface 3 of the inspection fixture. The clamping plate 1001 is connected to the clamping bolt 1002 by a thread, and the clamping bolt 1002 is inserted into the clamping support 1003.

[0044] Rotating the clamping bolt 1002 forward and reverse can drive the clamping plate 1001 to move towards the magnetic tile body 1 or away from the magnetic tile body 1. The two clamping plates 1001 approach the magnetic tile body 1 at the same time, and finally the magnetic tile body 1 can be clamped. The two clamping plates 1001 move away from each other, and the magnetic tile body 1 is not squeezed by the clamping plates 1001.

[0045] Working principle:

[0046] When in use, the magnetic tile body 1 is inserted between the two chord length limit platforms 6, and the bevel surface 4 in the magnetic tile body 1 is made to rest on the two side edges of the angle groove 7. After being inserted into the inspection fixture body 2, the chord length surface 11 of the magnetic tile is inserted between the two chord length limit platforms 6, and the gap between the two is 0.05-0.1mm. At this time, the position of the magnetic tile body 1 is limited by the two chord length limit platforms 6, and the inspection fixture measurement reference surface 3 is flush with the center line of the bevel surface 4 in the magnetic tile body 1, and the distance between the center line of the bevel surface 4 in the magnetic tile body 1 and the magnetic tile outer arc vertex 5 is equal to the distance between the inspection fixture measurement reference surface 3 and the magnetic tile outer arc vertex 5. The distance between the inspection fixture measurement reference surface 3 and the magnetic tile outer arc vertex 5 is measured by the size detection unit 8, and the distance between the center line of the bevel surface 4 in the magnetic tile body 1 and the magnetic tile outer arc vertex 5 can be obtained.

[0047] By setting a level meter 901 on the gauge measuring reference surface 3, measuring its levelness, turning the level adjustment bolt 902 to adjust the height of the level adjustment support plate 903, the levelness of the upper gauge measuring reference surface 3 is adjusted to keep it horizontal, so that the magnetic tile body 1 is in a horizontal state during inspection.

[0048] By setting a magnetic tile position clamping unit 10 on the inspection fixture body 2 and rotating the clamping bolt 1002 in the forward and reverse directions, the clamping plate 1001 can be driven to move toward or away from the magnetic tile body 1. The two clamping plates 1001 approach the magnetic tile body 1 at the same time, and finally the magnetic tile body 1 can be clamped. The two clamping plates 1001 move away from each other, and the magnetic tile body 1 is not squeezed by the clamping plates 1001.

[0049] Although embodiments of the present invention have been shown and described, it will be appreciated by those skilled in the art that various changes, modifications, substitutions and variations may be made to the embodiments without departing from the principles and spirit of the present invention, and that the scope of the present invention is defined by the appended claims and their equivalents.

Claims

1. A gauge for detecting the size of a magnetic tile, characterized in that: The device comprises a gauge body (2) and a dimension detection unit (8), wherein the dimension detection unit (8) is arranged on a gauge measurement reference surface (3) in the gauge body (2), and a magnetic tile body (1) is arranged on the gauge body (2), wherein the magnetic tile body (1) comprises an oblique angle surface (4), a magnetic tile outer arc vertex (5), and a magnetic tile chord length surface (11); The size detection unit (8) is used to measure the distance between the vertex (5) of the outer arc of the magnetic tile in the magnetic tile body (1) and the gauge measurement reference surface (3) in the gauge body (2), and the gauge measurement reference surface (3) is flush with the center line of the bevel surface (4) in the magnetic tile body (1); A chord length limiting platform (6) is provided in the inspection tool body (2); An angled groove (7) is provided in the gauge body (2), and the angled groove (7) includes two side edges. When the magnetic tile body (1) is inserted into the gauge body (2), the two side edges in the gauge body (2) respectively overlap with the two angled surfaces (4) in the magnetic tile body (1).

2. A gauge for detecting the size of a magnetic tile according to claim 1, characterized in that: The size detection unit (8) comprises a detection block, and a detection surface is arranged at the bottom of the detection block.

3. A gauge for detecting the size of a magnetic tile according to claim 1, characterized in that: The height of the chord length limiting platform (6) is higher than the height of the chord length surface (11) of the magnetic tile in the magnetic tile body (1), and the gap between the chord length surface (11) of the magnetic tile and the chord length limiting platform (6) is 0.05-0.1 mm.

4. A gauge for detecting the size of a magnetic tile according to claim 1, characterized in that: The gauge measurement reference surface (3), the chord length limiting platform (6) and the angle groove (7) in the gauge body (2) are formed by one-time cutting with a wire cutting machine.

5. The inspection tool for detecting the size of magnetic tiles according to claim 1, characterized in that: The gauge body (2) is provided with a reference plane horizontal adjustment unit (9), the reference plane horizontal adjustment unit (9) comprising a level (901) and a horizontal adjustment support plate (903), and the level (901) is provided on the gauge measurement reference plane (3).

6. A gauge for detecting the size of magnetic tiles according to claim 5, characterized in that: The horizontal adjustment support plates (903) are arranged on the gauge body (2), four horizontal adjustment support plates (903) are arranged, and the four horizontal adjustment support plates (903) are symmetrically distributed on both sides of the gauge body (2) in groups of two.

7. A gauge for detecting the size of magnetic tiles according to claim 6, characterized in that: A horizontal adjustment bolt (902) is screwed into each of the horizontal adjustment support plates (903).

8. The inspection tool for detecting the size of magnetic tiles according to claim 1, characterized in that: Two magnetic tile position clamping units (10) are arranged on the upper side of the measuring reference surface (3) of the inspection fixture and are symmetrically distributed about the center line of the magnetic tile body (1).

9. A gauge for detecting the size of magnetic tiles according to claim 8, characterized in that: The magnetic tile position clamping unit (10) comprises a clamping plate (1001), and a clamping surface is provided on one side of the clamping plate (1001) close to the magnetic tile body (1), and the clamping surface is adapted to the outer wall of the magnetic tile body (1).

10. A gauge for detecting the size of a magnetic tile according to claim 9, characterized in that: The clamping plate (1001) is fitted with the upper end surface of the chord length limiting platform (6), and the lower end surface of the clamping plate (1001) is fitted with the measuring reference surface (3) of the gauge. The clamping plate (1001) is connected to the clamping bolt (1002) through a thread, and the clamping bolt (1002) is inserted into the clamping support (1003).

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