Fixing jig for magnetizing sintered ferrite

Abstract

The invention relates to a sintered ferrite magnetizing fixing jig, belongs to the field of ferrite magnetizing, and aims to solve the problem that an existing ferrite magnetizing fixing jig cannot perform all-directional clamping and positioning on tile-shaped ferrites with different widths, different thicknesses and different radians. The sintered ferrite magnetizing fixing jig comprises a supporting plate and a mounting plate, a first sliding groove is formed in the supporting plate, and a second sliding groove is formed in the mounting plate; and a first bidirectional threaded rod is rotationally connected to the interior of the first sliding groove, a first sliding block is connected to the first bidirectional threaded rod in a threaded mode, a placing plate is welded and fixed to the top end of the first sliding block, and an omnibearing clamping assembly is installed on the placing plate. The first clamping plates on the two sides can be driven to move towards the tile-shaped ferrite at the same time through cooperation of the second clamping plates and the first pulling ropes, all-directional clamping and fixing of the front end face, the rear end face, the left end face and the right end face of the tile-shaped ferrite are achieved, and the clamping device can be suitable for the tile-shaped ferrites with different widths, different thicknesses and different radians; and the practicability and the applicability of the fixing jig are improved.

Description

Technical Field

[0001] The present invention relates to a sintered ferrite magnetization fixing fixture, belonging to the field of ferrite magnetization. Background Art

[0002] In today's highly developed technological and industrial system, due to its unique magnetic property advantages, tile-shaped ferrite has been extremely widely used in many key fields. Especially in the field of motor manufacturing, whether it is small household motors, industrial drive motors, or motors for new energy vehicles, tile-shaped ferrite, as a permanent magnet, provides a stable and efficient magnetic field for the motor, and is one of the core elements to achieve efficient operation of the motor and reduce energy consumption. During the production and processing of tile-shaped ferrite, after sintering and grinding, it is necessary to use a fixing fixture to clamp and fix it, and place it in a magnetization device for magnetization processing to endow it with the required magnetism.

[0003] However, there are some problems in the actual use of existing fixing fixtures for ferrite magnetization. For example, a positioning fixture for magnet magnetization with the publication number CN215220413U can clamp and fix the permanent ferrite during operation, but it cannot adjust the position according to the different sizes and different arcs of the tile-shaped ferrite. Furthermore, it cannot accurately align the arc center of the tile-shaped ferrite with the center of the magnetic field inside the magnetization device. If the magnetic field center of the magnetization device deviates greatly from the arc center of the tile-shaped ferrite, it will cause a deviation in the magnetization direction, and further affect the uniformity of the magnetic field distribution of the ferrite after magnetization. And existing fixing fixtures for ferrite magnetization cannot perform convenient, stable, and all-round clamping and positioning on tile-shaped ferrites with different widths, different thicknesses, and different arcs during actual use, and their practicability and applicability are poor. Therefore, we make improvements on this and propose a sintered ferrite magnetization fixing fixture. Summary of the Invention

[0004] (1) The technical problem to be solved by the present invention is that existing fixing fixtures for ferrite magnetization cannot adjust the position according to the different sizes and different arcs of the tile-shaped ferrite, and cannot perform convenient, stable, and all-round clamping and positioning on tile-shaped ferrites with different widths, different thicknesses, and different arcs.

[0005] (2) Technical Solution To achieve the above-mentioned invention object, the present invention provides a sintered ferrite magnetization fixing jig, which includes a support plate and a mounting plate. A first sliding groove is formed on the support plate, and a first bidirectional threaded rod is rotatably connected in the first sliding groove. A first slider is threadedly connected to the first bidirectional threaded rod. The top end of the first slider is welded and fixed with a placement plate. An all-round clamping assembly is installed on the placement plate. A concentric positioning assembly is installed on the top of the support plate. A sleeve is welded and fixed at the central part of the support plate. The all-round clamping assembly includes a second sliding groove and a connecting plate. A limiting rod is slidably connected through the connecting plate. One end of the limiting rod is welded and fixed with a second clamping plate. The other end of the limiting rod is welded and fixed with a connecting plate. A through groove is formed through the second clamping plate, and a first clamping plate is slidably connected in the through groove. A guide wheel is installed on the connecting plate, and a first traction rope is slidably connected and limited on the guide wheel. One end of the first traction rope is fixedly connected to the connecting plate, and the other end of the first traction rope is fixedly connected to the guide block.

[0006] Among them, the first sliding grooves are symmetrically distributed on both sides of the support plate. The first sliding grooves correspond to the first bidirectional threaded rods one by one. A belt pulley is fixedly connected to the first bidirectional threaded rod, and a synchronous belt is connected to the belt pulley. The placement plate is in contact with the support plate. The placement plates are symmetrically distributed on both sides of the top of the support plate. The first sliders at the bottoms of the two placement plates are symmetrically distributed on both sides of the first bidirectional threaded rod. The placement plates correspond to the all-round clamping assemblies one by one.

[0007] Among them, the second sliding groove is formed on the placement plate. A second bidirectional threaded rod is rotatably connected in the second sliding groove. A second slider is threadedly connected to the second bidirectional threaded rod. The top end of the second slider is welded and fixed with a connecting plate. The second sliders are symmetrically distributed on both sides of the second bidirectional threaded rod. The second sliders correspond to the connecting plates one by one. Guide grooves are formed through both sides of the connecting plate, and a first spring is welded and fixed in the guide grooves. A guide block is welded and fixed on the first spring. The guide block is slidably connected and limited in the guide groove. The guide block is welded and fixed to the first clamping plate.

[0008] Among them, the limiting rod is fixed at the central part of the second clamping plate. The cross section of the limiting rod is rectangular. The through grooves are symmetrically distributed on both sides of the second clamping plate. The through grooves correspond to the first clamping plates and the guide blocks one by one. The guide blocks correspond to the first traction ropes one by one.

[0009] Among them, the concentric positioning component includes a first limiting frame and a second limiting frame. The first limiting frame is welded and fixed at the central part of the top of the pallet. A fixing rod is welded and fixed on the inner side end face of the first limiting frame. The fixing rods are symmetrically distributed on both sides inside the first limiting frame. The top of the fixing rod is inclined. A sliding rod is connected to the fixing rod in a limit sliding manner. A pushing block is welded and fixed on the sliding rod. The cross section of the pushing block is an isosceles triangle. The side end point of the pushing block and the side end point of the top of the fixing rod are located on the same vertical line.

[0010] Among them, the second limiting frame is connected to the first limiting frame in a limit sliding manner. A second spring is welded and fixed inside the second limiting frame. A top rod is welded and fixed on the second spring. The top rod is connected to the second limiting frame in a limit sliding manner. The second springs are symmetrically distributed on both sides of the bottom of the second limiting frame. The second springs and the top rods are in one-to-one correspondence. The end cross section of the top rod is a right trapezoid. A third spring is welded and fixed on the top end face of the pallet. The top end of the third spring is in contact with the bottom end face of the second limiting frame.

[0011] Among them, a central shaft is rotatably connected to the central part of the top of the second limiting frame. A rotating rod is welded and fixed at the top end of the central shaft. Telescopic sleeve rods are welded and fixed on both sides of the rotating rod. A fourth spring is welded and fixed inside the telescopic sleeve rod. A fixed pressure sensor is installed at the end of the telescopic sleeve rod.

[0012] Among them, a connecting rod is connected to the sleeve in a limit sliding manner. A pulling plate is welded and fixed at the top end of the connecting rod. The length and width of the pulling plate are respectively smaller than the length and width of the inner space of the second limiting frame. A positioning block is welded and fixed at the bottom end of the sleeve. The bottom end face of the sleeve is flush with the bottom end face of the pallet. The positioning block is welded to the pallet. The bottom end of the connecting rod is fixedly connected to a second traction rope.

[0013] Among them, a clamping block is fixedly connected to the bottom end of the second traction rope. The clamping block is connected to the positioning block in a limit sliding manner. A fifth spring is welded and fixed inside the positioning block. The fifth spring is welded and fixed to the clamping block. The clamping blocks are symmetrically distributed on both sides inside the positioning block. The clamping blocks are respectively in one-to-one correspondence with the fifth spring and the second traction rope. A first adjusting rod is welded and fixed on the top end face of the mounting plate. A sixth spring is welded and fixed on the first adjusting rod. A clamping rod is welded and fixed on the sixth spring.

[0014] Among them, a second adjusting rod is connected to the first adjusting rod in a limit sliding manner. First card slots are equidistantly opened on the second adjusting rod. A positioning frame is welded and fixed at the top end of the second adjusting rod. Second card slots are opened on both sides inside the positioning frame. The positioning block is connected to the positioning frame in a limit sliding manner. Both the positioning block and the positioning frame are rectangular. The clamping block is snap-fitted into the second card slot. The length of the clamping block is greater than the length of the second card slot.

[0015] Beneficial effects A sintered ferrite magnetization fixing jig provided by the present invention has the following beneficial effects: 1. By rotating the second bidirectional threaded rod, the second slider can drive the two connecting plates on both sides to move towards the middle of the placing plate at the same time, and then drive the corresponding second clamping plates to contact the front and rear end faces of the tile-shaped ferrite. Subsequently, under the continuous movement of the two connecting plates on both sides, with the cooperation of the second clamping plates and the first traction ropes, the first clamping plates on both sides can be driven to move towards the tile-shaped ferrite at the same time, and the left and right end faces of the tile-shaped ferrite can be automatically clamped and fixed, realizing the all-round clamping and fixing of the front and rear end faces and the left and right end faces of the tile-shaped ferrite, ensuring the stability and safety of the subsequent magnetization work, and being applicable to tile-shaped ferrites with different widths, different thicknesses and different arcs, increasing the practicability and applicability of the fixing jig.

[0016] 2. By rotating the first bidirectional threaded rod, the tile-shaped ferrites clamped and fixed on both sides can be driven to move towards the middle or the side at the same time. Combined with the pressure sensors on the telescopic sleeve rods, they can be in extrusion contact with the inner arc surfaces of the tile-shaped ferrites. At this time, by driving the pressure sensors on the telescopic sleeve rods to rotate slowly through the rotating rods, combined with the extrusion force values of the pressure sensors on the tile-shaped permanent magnet ferrites, it can be conveniently and accurately judged whether the centers of the two tile-shaped ferrites are at the same center point. By positioning the centers of the two tile-shaped ferrites clamped and fixed at the same center point, the convenient positioning of the tile-shaped ferrites is realized, and the distance from each ferrite to the magnetic field source of the magnetizer can be made equal, so as to ensure that the magnetic field intensity and direction they receive are relatively uniform and consistent during the magnetization process. In this way, the magnetic properties of the tile-shaped ferrites after magnetization are more stable and consistent, which is beneficial to improving the quality and performance consistency of the products.

[0017] 3. Through the cooperation of the fixed rod, the push block and the ejector rod, by repeatedly pressing, the clamping and fixing and the disassembly and separation of the second limit frame can be conveniently completed, realizing the convenient disassembly and assembly of the concentric positioning assembly. After detecting and adjusting the position of the ferrite, it can be disassembled to avoid affecting the stability and safety of the subsequent magnetization work, increasing the use diversity and convenience of the fixing jig.

[0018] 4. By pulling the pull plate upward, the clamping block can be driven to automatically move out of the second card slot in the positioning frame, and then the separation between the pallet and the positioning frame can be automatically completed. At this time, the staff can grab the pull plate and take out the pallet from the magnetizing device, which is convenient for the subsequent loading and unloading of ferrite. And after taking out the pallet, another pallet with ferrite clamped can be immediately placed in the magnetizing device for subsequent magnetizing work, effectively improving the loading and unloading efficiency of the fixing fixture. When the staff grabs the pull plate and places the pallet in the magnetizing device, they only need to place the positioning block in the positioning frame and release the pull plate, and the clamping and fixing between the clamping block and the second card slot can be automatically completed, realizing the automatic clamping and positioning of the pallet and ensuring the stability and safety of the subsequent magnetizing work of ferrite.

[0019] 5. The installation plate can be used to install and fix the first adjusting rod in the magnetizing device. And by the cooperation of the clamping rod and the first card slot, combined with the first adjusting rod and the second adjusting rod, the working height of the pallet can be conveniently adjusted. Then, ferrite of different specifications and sizes can be conveniently and stably fixed at the central part of the internal magnetic field of the magnetizing device, enabling the magnetic field acting on each part of the ferrite to be consistent, which helps to ensure that the overall magnetic distribution of the ferrite is uniform after magnetization, avoiding the situation of too strong or too weak local magnetism, and thus improving the magnetic performance and use effect of the ferrite. BRIEF DESCRIPTION OF THE DRAWINGS

[0020] In order to more clearly illustrate the technical solutions in the embodiments of the present invention or the prior art, the following will briefly introduce the drawings required for the description of the embodiments or the prior art. Obviously, the following drawings are only some embodiments of the present invention. For those of ordinary skill in the art, other drawings can be obtained based on these drawings without creative efforts.

[0021] Figure 1 It is a schematic diagram of the overall structure of the present invention; Figure 2 It is a schematic diagram of the connection structure of the belt pulley and the synchronous belt of the present invention; Figure 3 It is a schematic diagram of the connection structure of the installation plate and the first adjusting rod of the present invention; Figure 4 It is a schematic diagram of the connection structure of the first bidirectional threaded rod and the first slider of the present invention; Figure 5 It is a schematic diagram of the connection structure of the second bidirectional threaded rod and the second slider of the present invention; Figure 6 It is a schematic diagram of the connection structure of the limiting rod and the second clamping plate of the present invention; Figure 7 It is a schematic diagram of the connection structure of the guiding block and the first clamping plate of the present invention; Figure 8Schematic diagram of the connection structure between the positioning block and the pallet of the present invention; Figure 9 Schematic diagram of the connection structure between the second adjusting rod and the first card slot of the present invention; Figure 10 Schematic diagram of the connection structure between the sixth spring and the clamping rod of the present invention; Figure 11 Schematic diagram of the connection structure between the rotating rod and the telescopic sleeve rod of the present invention; Figure 12 For the present invention Figure 11 Enlarged structure diagram at position A in; Figure 13 Schematic diagram of the connection structure between the sliding rod and the pushing block of the present invention; Figure 14 For the present invention Figure 11 Enlarged structure diagram at position B in; Figure 15 Schematic diagram of the connection structure between the telescopic sleeve rod and the fourth spring of the present invention.

[0022] In the figure: 1. Pallet; 2. First chute; 3. First bidirectional threaded rod; 4. Belt pulley; 5. Synchronous belt; 6. First slider; 7. Placing plate; 8. Omnidirectional clamping assembly; 801. Second chute; 802. Second bidirectional threaded rod; 803. Second slider; 804. Connecting plate; 805. Guide groove; 806. First spring; 807. Guide block; 808. First clamping plate; 809. Limiting rod; 810. Second clamping plate; 811. Through groove; 812. Connecting plate; 813. First traction rope; 814. Guide pulley; 9. Concentric positioning assembly; 901. First limiting frame; 902. Fixed rod; 903. Sliding rod; 904. Pushing block; 905. Second limiting frame; 906. Second spring; 907. Thrust rod; 908. Third spring; 909. Central axis; 910. Rotating rod; 911. Telescopic sleeve rod; 912. Fourth spring; 913. Pressure sensor; 10. Sleeve; 11. Connecting rod; 12. Pulling plate; 13. Positioning block; 14. Second traction rope; 15. Clamping block; 16. Fifth spring; 17. Mounting plate; 18. First adjusting rod; 19. Sixth spring; 20. Clamping rod; 21. Second adjusting rod; 22. First card slot; 23. Positioning frame; 24. Second card slot. Detailed implementation manners

[0023] The following combines the description of the drawings in the specification and the embodiments to make a more detailed description of the specific implementation manners of the present invention. The following embodiments are only used to illustrate the present invention, but cannot be used to limit the scope of the present invention.

[0024] Embodiment 1: As Figure 1 , Figure 2 , Figure 3 ,Figure 4 , Figure 5 , Figure 6 , Figure 11 , Figure 12 , Figure 13 and Figure 15 As shown in Figure 4 , Figure 5 , Figure 6 , Figure 11 , Figure 12 , Figure 13 and Figure 15 , this embodiment provides a sintered ferrite magnetization fixing jig, which includes a pallet 1 and a mounting plate 17. A first sliding groove 2 is opened on the pallet 1. A first bidirectional threaded rod 3 is rotatably connected in the first sliding groove 2. A first slider 6 is threadedly connected to the first bidirectional threaded rod 3. The top end of the first slider 6 is welded and fixed with a placing plate 7. An omnidirectional clamping assembly 8 is installed on the placing plate 7. A concentric positioning assembly 9 is installed on the top of the pallet 1. A sleeve 10 is welded and fixed at the central part of the pallet 1. The omnidirectional clamping assembly 8 includes a second sliding groove 801 and a connecting plate 804. A limiting rod 809 is slidably connected through the connecting plate 804. One end of the limiting rod 809 is welded and fixed with a second clamping plate 810. The other end of the limiting rod 809 is welded and fixed with a connecting plate 812. A through groove 811 is opened through the second clamping plate 810. A first clamping plate 808 is slidably connected in the through groove 811. A guide wheel 814 is installed on the connecting plate 804. A first traction rope 813 is slidably connected to the guide wheel 814. One end of the first traction rope 813 is fixedly connected to the connecting plate 812. The other end of the first traction rope 813 is fixedly connected to a guide block 807. The omnidirectional clamping assembly 8 can be used to clamp and fix the front and rear end faces and the left and right end faces of the tile-shaped ferrite, ensuring the stability and safety of the subsequent magnetization work, and can be applicable to tile-shaped ferrites with different widths, different thicknesses and different arcs. Moreover, combined with the concentric positioning assembly 9, the centers of the tile-shaped ferrites clamped and fixed on both sides can be positioned at the same central point, realizing the convenient positioning of the tile-shaped ferrites, so that the distance from each ferrite to the magnetic field source of the magnetizer is equal, thereby ensuring that the magnetic field intensity and direction they receive during the magnetization process are relatively uniform and consistent. In this way, the magnetic properties of the tile-shaped ferrites after magnetization are more stable and consistent, which is beneficial to improving the quality and performance consistency of the products.

[0025] Example 2: The following further introduces the solution in Example 1 in combination with the specific working mode, as detailed in the following description: As Figure 1 , Figure 2 , Figure 3 and Figure 4As shown, as a preferred embodiment, on the basis of the above method, further, the first sliding grooves 2 are symmetrically distributed on both sides of the support plate 1. The first sliding grooves 2 correspond to the first bidirectional threaded rods 3 one by one. A pulley 4 is fixedly connected to the first bidirectional threaded rod 3. A synchronous belt 5 is connected to the pulley 4. The placing plate 7 is in contact with the support plate 1. The placing plates 7 are symmetrically distributed on both sides of the top of the support plate 1. The first sliders 6 at the bottoms of the two placing plates 7 are symmetrically distributed on both sides of the first bidirectional threaded rod 3. The first sliders 6 are slidably connected in the first sliding grooves 2 in a limited manner. The placing plates 7 correspond to the all-round clamping assemblies 8 one by one. By rotating the first bidirectional threaded rod 3, the two placing plates 7 on both sides can be driven to move towards the middle or both sides at the same time, and then the tile-shaped ferrites clamped and fixed on both sides can be driven to move synchronously, ensuring the convenience of subsequent concentric adjustment work.

[0026] As Figure 1 , Figure 2 , Figure 3 , Figure 4 , Figure 5 , Figure 6 and Figure 7 As shown, as a preferred embodiment, on the basis of the above method, further, a second sliding groove 801 is opened on the placing plate 7. A second bidirectional threaded rod 802 is rotatably connected in the second sliding groove 801. A second slider 803 is threadedly connected to the second bidirectional threaded rod 802. The second slider 803 is slidably connected in the second sliding groove 801 in a limited manner. The top end of the second slider 803 is welded and fixed with an adapter plate 804. The second sliders 803 are symmetrically distributed on both sides of the second bidirectional threaded rod 802. The second sliders 803 correspond to the adapter plates 804 one by one. Guide grooves 805 are formed through both sides of the adapter plate 804. A first spring 806 is welded and fixed in the guide grooves 805. A guide block 807 is welded and fixed on the first spring 806. The guide block 807 is slidably connected in the guide grooves 805 in a limited manner. The guide block 807 is welded and fixed with a first clamping plate 808. A limiting rod 809 is fixed at the central part of the second clamping plate 810. The cross section of the limiting rod 809 is rectangular. Through grooves 811 are symmetrically distributed on both sides of the second clamping plate 810. The through grooves 811 correspond to the guide blocks 807 through the first clamping plate 808. The guide blocks 807 correspond to the first traction ropes 813 one by one. By rotating the second bidirectional threaded rod 802, the two adapter plates 804 on both sides can be driven to move towards the middle of the placing plate 7 at the same time through the second sliders 803, and then the corresponding second clamping plates 810 can be driven to contact the front and rear end faces of the tile-shaped ferrite. Subsequently, under the continuous movement of the two adapter plates 804 on both sides, by the cooperation of the second clamping plate 810 and the first traction ropes 813, the two first clamping plates 808 on both sides can be driven to move towards the tile-shaped ferrite at the same time, and the left and right end faces of the tile-shaped ferrite can be automatically clamped and fixed, realizing the all-round clamping and fixing of the front and rear end faces and the left and right end faces of the tile-shaped ferrite.

[0027] As Figure 1 、 Figure 2 、 Figure 3 、 Figure 11 、 Figure 12 and Figure 13 shown, as a preferred embodiment, on the basis of the above method, further, the concentric positioning component 9 includes a first limiting frame 901 and a second limiting frame 905. The first limiting frame 901 is welded and fixed at the central part of the top of the support plate 1. A fixing rod 902 is welded and fixed on the inner side end surface of the first limiting frame 901. The fixing rods 902 are symmetrically distributed on both sides inside the first limiting frame 901. The top of the fixing rod 902 is inclined. A sliding rod 903 is connected to the fixing rod 902 in a limit sliding manner. A pushing block 904 is welded and fixed on the sliding rod 903. The cross section of the pushing block 904 is an isosceles triangle. The side end point of the pushing block 904 and the top side end point of the fixing rod 902 are located on the same vertical line. The second limiting frame 905 is connected to the first limiting frame 901 in a limit sliding manner. A second spring 906 is welded and fixed inside the second limiting frame 905. A top rod 907 is welded and fixed on the second spring 906. The top rod 907 is connected to the second limiting frame 905 in a limit sliding manner. The second springs 906 are symmetrically distributed on both sides of the bottom of the second limiting frame 905. The second springs 906 correspond to the top rods 907 one by one. The end cross section of the top rod 907 is a right trapezoid. A third spring 908 is welded and fixed on the top end surface of the support plate 1. The top end of the third spring 908 is in contact with the bottom end surface of the second limiting frame 905. By using the cooperation of the fixing rod 902, the pushing block 904 and the top rod 907, through repeated pressing, the clamping and fixing and disassembly separation of the second limiting frame 905 can be conveniently completed, realizing the convenient disassembly and assembly of the concentric positioning component 9. After detecting and adjusting the position of the ferrite, it can be disassembled to avoid affecting the stability and safety of the subsequent magnetization work.

[0028] As Figure 1 、 Figure 2 、 Figure 3 、 Figure 11 、 Figure 12 and Figure 15As shown, as a preferred embodiment, on the basis of the above method, further, a central shaft 909 is rotatably connected to the center of the top of the second limiting frame 905. The top end of the central shaft 909 is welded and fixed with a rotating rod 910. The two sides of the rotating rod 910 are welded and fixed with telescopic sleeve rods 911. A fourth spring 912 is welded and fixed inside the telescopic sleeve rods 911. A fixed pressure sensor 913 is installed at the end of the telescopic sleeve rod 911. By driving the pressure sensor 913 on the telescopic sleeve rod 911 to slowly rotate through the rotating rod 910, combined with the extrusion force value of the pressure sensor 913 on the tile-shaped permanent ferrite, it is possible to conveniently and accurately judge whether the centers of the two tile-shaped ferrites are at the same center point. By positioning the centers of the two clamped tile-shaped ferrites at the same center point, the convenient positioning of the tile-shaped ferrite is realized.

[0029] As Figure 8 , Figure 9 , Figure 10 , Figure 11 , Figure 12 and Figure 14 As shown, as a preferred embodiment, on the basis of the above method, further, a connecting rod 11 is connected in the sleeve 10 in a limited sliding manner. The top end of the connecting rod 11 is welded and fixed with a pulling plate 12. The length and width of the pulling plate 12 are respectively smaller than the length and width of the internal space of the second limiting frame 905. The bottom end of the sleeve 10 is welded and fixed with a positioning block 13. The bottom end surface of the sleeve 10 is flush with the bottom end surface of the support plate 1. The positioning block 13 is welded to the support plate 1. The bottom end of the connecting rod 11 is fixedly connected with a second traction rope 14. The second traction rope 14 is connected in the sleeve 10 and the positioning block 13 in a limited sliding manner. The bottom end of the second traction rope 14 is fixedly connected with a clamping block 15. The clamping block 15 is connected in the positioning block 13 in a limited sliding manner. A fifth spring 16 is welded and fixed in the positioning block 13. The fifth spring 16 is welded and fixed with the clamping block 15. The clamping blocks 15 are symmetrically distributed on both sides inside the positioning block 13. The clamping blocks 15 correspond to the fifth springs 16 and the second traction ropes 14 one by one. A first adjusting rod 18 is welded and fixed on the top end surface of the mounting plate 17. A sixth spring 19 is welded and fixed on the first adjusting rod 18. A clamping rod 20 is welded and fixed on the sixth spring 19. The clamping rod 20 is connected in the first adjusting rod 18 in a limited sliding manner. Just by pulling up the pulling plate 12, the clamping block 15 can be driven to automatically move out of the second clamping groove 24 in the positioning frame 23, and then the separation between the support plate 1 and the positioning frame 23 can be automatically completed. At this time, the staff can grab the pulling plate 12 and take out the support plate 1 from the magnetizing device, which is convenient for the subsequent loading and unloading work of the ferrite. And after taking out the support plate 1, another support plate 1 loaded with ferrite can be immediately placed in the magnetizing device for subsequent magnetizing work, effectively improving the loading and unloading efficiency of the fixing jig.

[0030] As Figure 8 , Figure 9 andFigure 10 As shown, as a preferred embodiment, on the basis of the above method, further, a second adjusting rod 21 is connected in the first adjusting rod 18 in a limited sliding manner. A first card slot 22 is equidistantly arranged on the second adjusting rod 21. The top end of the second adjusting rod 21 is welded and fixed with a positioning frame 23. Second card slots 24 are arranged on both sides inside the positioning frame 23. The positioning block 13 is connected in the positioning frame 23 in a limited sliding manner. Both the positioning block 13 and the positioning frame 23 are rectangular. The clamping block 15 is clamped in the second card slot 24. The length of the clamping block 15 is greater than the length of the second card slot 24. By using the cooperation of the clamping rod 20 and the first card slot 22, combined with the first adjusting rod 18 and the second adjusting rod 21, the working height of the supporting plate 1 can be conveniently adjusted, and then ferrite with different specifications and sizes can be conveniently and stably fixed at the central part of the internal magnetic field of the magnetizing device.

[0031] Example 3: The solutions in Example 1 and Example 2 are further introduced below in combination with specific working methods. See the following description for details: Specifically, when this sintered ferrite magnetizing and fixing jig is in use: First, after the ferrite has been formed, sintered, and polished, it needs to be magnetized to make it have the required magnetism. And the staff can install and fix the mounting plate 17 in the magnetizing device by using bolts; when positioning and clamping the tile-shaped ferrite, the staff can place the tile-shaped ferrite on the placing plate 7 and orient the inner arc surface of the tile-shaped ferrite towards the middle part of the supporting plate 1. Then the staff can rotate the second bidirectional threaded rod 802 on the placing plate 7. At this time, the second bidirectional threaded rod 802 can drive the second sliders 803 connected by threads on both sides to move towards the middle simultaneously in the second chute 801. Under the movement action of the second sliders 803 on both sides, the corresponding connecting plates 804 can be driven to move towards the middle simultaneously. At this time, the connecting plate 804 can push the second clamping plate 810 to first contact the front and rear end faces of the tile-shaped ferrite through the limiting rod 809.

[0032] After the second clamping plates 810 on both sides come into contact with the front and rear end faces of the tile-shaped ferrite, the second clamping plates 810 can no longer move further towards the middle. At this time, under the continuous movement of the connecting plates 804 on both sides, the second clamping plates 810 can push the connecting plate 812 to move away from the connecting plate 804 through the limiting rods 809. At this time, under the movement of the connecting plate 812, the first traction ropes 813 on the guide wheels 814 can be used to pull the guide blocks 807 on both sides to move towards the middle simultaneously. At this time, under the limiting and guiding action of the guide grooves 805, the guide blocks 807 on both sides can drive the corresponding first clamping plates 808 to move towards the middle simultaneously and fit with the left and right end faces of the tile-shaped ferrite. At this time, under the combined action of the second clamping plates 810 on both sides and the first clamping plates 808 on both sides of the second clamping plates 810, the front and rear end faces and the left and right end faces of the tile-shaped ferrite can be clamped and fixed in all directions simultaneously, and it can be positioned and fixed at the center of the placing plate 7, and it can be applicable to tile-shaped ferrites with different widths, different thicknesses and different arcs.

[0033] After clamping and fixing two tile-shaped ferrites on the placing plates 7 on both sides, the staff can rotate the first bidirectional threaded rod 3 on the support plate 1. By rotating one first bidirectional threaded rod 3, the synchronous belt 5 on the pulley 4 can drive the other first bidirectional threaded rod 3 to rotate synchronously. At this time, under the simultaneous rotation of the first bidirectional threaded rods 3 on both sides, the placing plates 7 on both sides can be driven to move towards the middle simultaneously through the first sliders 6 connected by threads until the tile-shaped ferrites on both sides squeeze the pressure sensors 913 on the telescopic sleeve rods 911 on both sides. The pressure sensors 913 are wireless sensors, and the model is CS-iWPT301; at this time, the staff only needs to slowly rotate the rotating rod 910 on the central shaft 909. At this time, the rotating rod 910 can drive the pressure sensors 913 on the telescopic sleeve rods 911 on both sides to rotate slowly and with a small amplitude to prevent the pressure sensors 913 from moving away from the tile-shaped ferrite. During the movement of the pressure sensors 913, the pressure numerical values of the pressure sensors 913 can be observed through the pressure digital display instrument wirelessly connected to the pressure sensors 913.

[0034] Since the rotating rod 910 is at the central position between the two tile-shaped ferrite bodies, if the arc centers of the two tile-shaped ferrite bodies are at the same central point and coincide with the central point of the rotating rod 910, during the movement of the pressure sensor 913 at this time, the pressure value thereof will not change, and the concentric adjustment work is completed; on the contrary, if the pressure value changes during the movement of the pressure sensor 913, it is necessary to drive the two tile-shaped ferrite bodies to move towards the middle or both sides simultaneously for adjustment until the adjustment is completed. By adjusting the center points of the tile-shaped ferrite bodies, the distance from each ferrite body to the magnetic field source of the magnetizer can be made equal, so as to ensure that the magnetic field intensity and direction they receive during the magnetization process are relatively uniform and consistent. In this way, the magnetic properties of the tile-shaped ferrite bodies after magnetization are more stable and consistent, which is conducive to improving the quality and performance consistency of the products; since the shapes and sizes of the tile-shaped ferrite bodies in the same batch are the same, the position adjustment between the two placement plates 7 only needs to be carried out at the beginning of the work. When magnetizing the tile-shaped ferrite bodies in the next batch, the next adjustment work is required.

[0035] After the adjustment work is completed, the staff only needs to press down the rotating rod 910. At this time, the rotating rod 910 can push the second limiting frame 905 to move downward through the central shaft 909 and squeeze the third spring 908. At this time, under the blocking of the push block 904 and the guiding action of the end inclined surface, the ejector rod 907 can be pushed to move automatically into the second limiting frame 905. Subsequently, the second limiting frame 905 drives the ejector rod 907 to move below the push block 904. At this time, the second spring 906 can push the ejector rod 907 to move outward and reset. Then the staff can release the rotating rod 910. At this time, under the elastic action of the third spring 908, the second limiting frame 905 can be pushed to move upward automatically, and the second limiting frame 905 can push the push block 904 to move upward synchronously through the top plane of the ejector rod 907 until the push block 904 moves to the fixed rod 902. At this time, under the blocking action of the top of the fixed rod 902 and also under the guiding action of the end inclined surface of the push block 904, the ejector rod 907 can be pushed to move automatically into the second limiting frame 905. Subsequently, the second limiting frame 905 drives the ejector rod 907 to move above the fixed rod 902 to release the clamping state. At this time, the staff can take the second limiting frame 905, the rotating rod 910, the telescopic sleeve rod 911 and the pressure sensor 913 away from the fixed fixture to prevent it from affecting the subsequent magnetization work.

[0036] Similarly, when it is necessary to snap and fix the second limiting frame 905, just place the second limiting frame 905 inside the first limiting frame 901 and press the second limiting frame 905 downward again. At this time, under the guiding and pushing action of the inclined plane at the top of the fixing rod 902, it can also push the ejector rod 907 to automatically move into the second limiting frame 905. Subsequently, the second limiting frame 905 drives the ejector rod 907 to move below the top of the fixing rod 902. At this time, under the snap and blocking action of the top of the fixing rod 902 and in combination with the top plane of the ejector rod 907, the second limiting frame 905 can be conveniently and stably snapped and fixed inside the first limiting frame 901, ensuring the stability of the subsequent working state of the concentric positioning assembly 9. In summary, by repeating the pressing, the snap and fixing and disassembly separation of the second limiting frame 905 can be conveniently completed, realizing the convenient disassembly and assembly of the concentric positioning assembly 9.

[0037] After disassembling and separating the concentric positioning assembly 9, the staff only needs to grasp the pull plate 12 and pull it upward. At this time, the pull plate 12 drives the connecting rod 11 to move to the top in the sleeve 10, and then the tray 1 can be lifted as a whole. At this time, under the movement action of the connecting rod 11, the two side clamping blocks 15 can be pulled to move towards the middle simultaneously through the second traction rope 14 and move into the positioning block 13. Subsequently, the staff can move the tray 1 into the magnetizer and place the positioning block 13 at the bottom of the tray 1 into the positioning frame 23 at the top of the second adjusting rod 21. Then, the pull plate 12 can be released. At this time, under the elastic action of the fifth spring 16, the clamping rod 20 can be driven to automatically snap into the second card slots 24 on both sides of the positioning frame 23, completing the automatic snap and fixing of the tray 1, ensuring the stability and safety of the subsequent working state of the tray 1, and the clamping rod 20 can drive the connecting rod 11 and the pull plate 12 to automatically move downward and reset through the second traction rope 14.

[0038] After the magnetization work is completed, similarly, just pull the pull plate 12 upward, and it can drive the clamping blocks 15 to automatically disengage from the second card slots 24, completing the disassembly and separation between the tray 1 and the positioning frame 23, facilitating the subsequent convenient taking of the tray 1. By taking the tray 1 out of the magnetizer, it can facilitate the stable and convenient subsequent loading and unloading work of the tile-shaped ferrite. And after unloading one tray 1, another tray 1 with the ferrite clamped can be immediately placed in the magnetization equipment for subsequent magnetization work, effectively improving the loading and unloading efficiency of the fixing fixture.

[0039] Before the magnetizing operation, the staff can pull the clamping rod 20 on the first adjusting rod 18 outward to make it move out of the first clamping groove 22 on the second adjusting rod 21. Then, the second adjusting rod 21 can be pulled to move up and down to adjust the height of the positioning frame 23. After adjusting to the appropriate position, the clamping rod 20 can be released. At this time, under the elastic action of the sixth spring 19, the clamping rod 20 can be driven to automatically engage into the first clamping groove 22 on the second adjusting rod 21 to complete the clamping and fixing of the second adjusting rod 21. After adjusting the height of the positioning frame 23, the working position of the supporting plate 1 can be conveniently adjusted according to the actual situation, so that ferrite with different specifications and sizes can be conveniently and stably fixed at the central part of the internal magnetic field of the magnetizing device, enabling the magnetic field acting on each part of the ferrite to be consistent, which helps to ensure that the overall magnetic distribution of the ferrite is uniform after magnetization and avoid the situation of too strong or too weak local magnetism, thereby improving the magnetic properties and service effect of the ferrite.

[0040] When disassembling and blanking the tile-shaped ferrite, only by reversely rotating the second bidirectional threaded rod 802, the second clamping plate 810 can be driven by the connecting plate 804 to move away from the tile-shaped ferrite. At the same time, under the elastic action of the first spring 806, the first clamping plate 808 on the guide block 807 can be driven to move away from the tile-shaped ferrite and complete the reset. And the guide block 807 can drive the second clamping plate 810 to move back to the original position through the limiting rod 809 on the first traction rope 813, ensuring the convenience of subsequent repeated use work.

[0041] The above embodiments are only used to illustrate the present invention, rather than to limit the present invention. Although the present invention has been described in detail with reference to the embodiments, those of ordinary skill in the art should understand that various combinations, modifications or equivalent replacements of the technical solutions of the present invention do not depart from the spirit and scope of the technical solutions of the present invention, and should all be covered within the scope of the claims of the present invention.

Claims

1. A sintered ferrite magnetizing fixture, comprising a support plate (1) and a mounting plate (17), characterized in that: The support plate (1) is provided with a first slide groove (2), a first bidirectional threaded rod (3) is rotatably connected in the first slide groove (2), a first slider (6) is threadedly connected to the first bidirectional threaded rod (3), a placement plate (7) is welded and fixed to the top of the first slider (6), an all-round clamping assembly (8) is installed on the placement plate (7), a concentric positioning assembly (9) is installed on the top of the support plate (1), a sleeve (10) is welded and fixed to the center of the support plate (1), and the all-round clamping assembly (8) includes a second slide groove (801) and a connecting plate (804), and a limit rod (809) is slidably connected to the connecting plate (804). A second clamping plate (810) is welded and fixed to one end of the limit rod (809), a connecting plate (812) is welded and fixed to the other end of the limit rod (809), a through slot (811) is penetrated through the second clamping plate (810), a first clamping plate (808) is slidably connected in the through slot (811), a guide wheel (814) is installed on the connecting plate (804), a first traction rope (813) is slidably connected to the guide wheel (814), one end of the first traction rope (813) is fixedly connected to the connecting plate (812), and the other end of the first traction rope (813) is fixedly connected to the guide block (807).

2. A sintered ferrite magnetizing fixture according to claim 1, characterized in that: The first slide grooves (2) are symmetrically distributed on both sides of the support plate (1); the first slide grooves (2) correspond one-to-one with the first bidirectional threaded rod (3); a pulley (4) is fixedly connected to the first bidirectional threaded rod (3); a synchronous belt (5) is connected to the pulley (4); the placement plate (7) fits the support plate (1); the placement plates (7) are symmetrically distributed on both sides of the top of the support plate (1); the first sliders (6) at the bottom of the placement plates (7) on both sides are symmetrically distributed on both sides of the first bidirectional threaded rod (3); and the placement plates (7) correspond one-to-one with the omnidirectional clamping components (8).

3. A sintered ferrite magnetizing fixture according to claim 1, characterized in that: The second slide groove (801) is provided on the placement plate (7); a second bidirectional threaded rod (802) is rotatably connected in the second slide groove (801); a second slider (803) is threadedly connected to the second bidirectional threaded rod (802); a connecting plate (804) is welded and fixed to the top of the second slider (803); the second sliders (803) are symmetrically distributed on both sides of the second bidirectional threaded rod (802); the second sliders (803) correspond to the connecting plates (804) one by one; guide grooves (805) are provided on both sides of the connecting plates (804); a first spring (806) is welded and fixed in the guide groove (805); a guide block (807) is welded and fixed on the first spring (806); the guide block (807) is limitedly slidably connected in the guide groove (805); the guide block (807) is welded and fixed to the first clamping plate (808).

4. A sintered ferrite magnetizing fixture according to claim 3, characterized in that: The limiting rod (809) is fixed at the center of the second clamping plate (810), the cross section of the limiting rod (809) is rectangular, the through grooves (811) are symmetrically distributed on both sides of the second clamping plate (810), the through grooves (811) correspond one-to-one with the guide blocks (807) through the first clamping plate (808), and the guide blocks (807) correspond one-to-one with the first traction rope (813).

5. The sintered ferrite magnetizing fixture according to claim 1, characterized in that: The concentric positioning assembly (9) comprises a first limit frame (901) and a second limit frame (905), wherein the first limit frame (901) is welded and fixed to the top center portion of the support plate (1), and a fixing rod (902) is welded and fixed to the inner side end surface of the first limit frame (901), and the fixing rods (902) are symmetrically distributed on both sides of the first limit frame (901), and the top of the fixing rod (902) is inclined, and the upper limit sliding connection of the fixing rod (902) is connected to a sliding rod (903), and a push block (904) is welded and fixed to the sliding rod (903), and the cross section of the push block (904) is an isosceles triangle, and the side end point of the push block (904) and the top side end point of the fixing rod (902) are located on the same vertical line.

6. A sintered ferrite magnetizing fixture according to claim 5, characterized in that: The second limit frame (905) is connected to the first limit frame (901) by limiting sliding, a second spring (906) is welded and fixed in the second limit frame (905), a push rod (907) is welded and fixed on the second spring (906), the push rod (907) is connected to the second limit frame (905) by limiting sliding, the second spring (906) is symmetrically distributed on both sides of the bottom of the second limit frame (905), the second spring (906) corresponds to the push rod (907) one by one, the end cross section of the push rod (907) is a right-angled trapezoid, and a third spring (908) is welded and fixed on the top end surface of the support plate (1), and the top end of the third spring (908) is in contact with the bottom end surface of the second limit frame (905).

7. A sintered ferrite magnetizing fixture according to claim 6, characterized in that: The center portion of the top of the second limit frame (905) is rotatably connected to a center shaft (909), a rotating rod (910) is welded and fixed to the top of the center shaft (909), telescopic sleeve rods (911) are welded and fixed to both sides of the rotating rod (910), a fourth spring (912) is welded and fixed inside the telescopic sleeve rod (911), and a fixed pressure sensor (913) is installed at the end of the telescopic sleeve rod (911).

8. The sintered ferrite magnetizing fixture according to claim 7, characterized in that: The sleeve (10) is internally limited and slidably connected to a connecting rod (11), a pulling plate (12) is welded and fixed to the top end of the connecting rod (11), the length and width of the pulling plate (12) are respectively smaller than the length and width of the internal space of the second limiting frame (905), a positioning block (13) is welded and fixed to the bottom end of the sleeve (10), the bottom end surface of the sleeve (10) is flush with the bottom end surface of the support plate (1), the positioning block (13) is welded to the support plate (1), and the bottom end of the connecting rod (11) is fixedly connected to a second traction rope (14).

9. A sintered ferrite magnetizing fixture according to claim 8, characterized in that: The bottom end of the second traction rope (14) is fixedly connected to a clamping block (15), the clamping block (15) is limitedly slidably connected in the positioning block (13), a fifth spring (16) is welded and fixed in the positioning block (13), the fifth spring (16) and the clamping block (15) are welded and fixed, the clamping blocks (15) are symmetrically distributed on both sides of the positioning block (13), the clamping blocks (15) correspond to the fifth spring (16) and the second traction rope (14) respectively, a first adjustment rod (18) is welded and fixed on the top surface of the mounting plate (17), a sixth spring (19) is welded and fixed on the first adjustment rod (18), and a clamping rod (20) is welded and fixed on the sixth spring (19).

10. The sintered ferrite magnetizing and fixing fixture according to claim 9, characterized in that: A second adjusting rod (21) is slidably connected inside the first adjusting rod (18), first clamping grooves (22) are equidistantly provided on the second adjusting rod (21), a positioning frame (23) is welded and fixed to the top end of the second adjusting rod (21), second clamping grooves (24) are provided on both sides of the positioning frame (23), the positioning block (13) is slidably connected inside the positioning frame (23), the positioning block (13) and the positioning frame (23) are both rectangular, the clamping block (15) is clamped and connected in the second clamping groove (24), and the length of the clamping block (15) is greater than the length of the second clamping groove (24).

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