Annular magnetic core polishing device

Abstract

The utility model relates to the field of grinding devices, in particular to an annular magnetic core grinding device which comprises a bottom plate, a top plate is fixed to the upper portion of the bottom plate, a lifting air cylinder is fixed to the top plate, a rotating block is fixed to the tail end of a piston rod of the lifting air cylinder, and a positioning plate rotationally connected with the rotating block is arranged on the rotating block. A rotating disc is arranged below the positioning plate, a plurality of supporting rods are fixed to the rotating disc, penetrate through the positioning plate and are in sliding connection with the positioning plate, limiting blocks are fixed to the tops of the supporting rods, a plurality of springs are further fixed between the positioning plate and the rotating disc, and a sliding block is further arranged above the rotating disc. A grinding motor is fixed to the sliding block, a grinding roller is fixed to the output end of the grinding motor, a plurality of sliding rails are further fixed to the rotating disc, the sliding rails penetrate through the sliding block and are connected with the sliding block in a sliding mode, and a push rod is further fixed to the sliding block. By means of the device, the inner hole of the magnetic core can be polished, and burrs on the inner hole of the magnetic core can be effectively removed.

Description

Technical Field

[0001] The present invention relates to the field of grinding devices, in particular to a ring magnetic core grinding device. Background Art

[0002] A magnetic core refers to a sintered magnetic metal oxide composed of a mixture of various iron oxides. For example, manganese-zinc ferrite and nickel-zinc ferrite are typical magnetic core materials. The surface of the magnetic core is relatively rough after production, so the magnetic core needs to be processed twice after production. The processing is to grind the end face of the magnetic core to make the surface of the magnetic core smooth. Patent application number CN202322326399.X discloses a circular magnetic core grinding device, including a support table, an electric push rod, a splint and a rubber block. Electric push rods are installed on the left and right sides of the upper part of the support table. The telescopic rod of the electric push rod is connected to a splint, and a rubber block is fixed to the inner side of the splint. It also includes a dual-axis motor, a screw, a movable frame, a motor and a grinding wheel. Grinding wheel, dual-axis motors are installed on the left and right sides of the top of the support table, and the output shafts at both ends of the dual-axis motor are connected to screws through couplings. A movable frame is threadedly arranged at the upper and lower parts between the two screws, and a motor is installed in the middle of the movable frame. The output shaft of the motor is connected to a grinding wheel. By placing the circular magnetic core on the placement frame so that the anti-slip pad contacts it, the circular magnetic core is located in the center position, thereby preventing the grinding wheel from not being able to fully contact the circular magnetic core for grinding it during the later grinding. However, for the magnetic core with an inner hole, there will be burrs on its inner ring surface after sintering, and this type of grinding device cannot eliminate the burrs in the inner hole.

[0003] The present invention is proposed in view of the deficiencies in the prior art. Summary of the Invention

[0004] The purpose of the present invention is to overcome the above-mentioned shortcomings of the prior art and provide a ring magnetic core grinding device.

[0005] The present invention can be achieved through the following technical solutions:

[0006] Material toggling mechanism, its both sides respectively have a cylinder pressure, and the cylinder pressure bar connects swing arm, and the swing arm end face has hook portion, and a bar passes position between the end of two swing arms and the hook portion. The grinding roller moves along with the slider, and the grinding roller moves close to the inner wall of the magnetic core. After the grinding roller contacts the inner wall of the magnetic core, the positioning plate stops descending, and the grinding roller is driven to rotate by the grinding motor, and the turntable is driven to rotate by the rotating motor, and the grinding roller moves along with the turntable, and the burrs on the inner hole of the magnetic core are polished by the rotating grinding roller. The inner hole of the magnetic core can be polished by this device, and the burrs on the inner hole of the magnetic core can be effectively cleaned.

[0007] Preferably, a ring gear is fixed on the turntable, and a gear is fixed on the output end of the rotating motor, and the gear is meshed with the ring gear.

[0008] Preferably, the base plate is further fixed with multiple feeding cylinders, the piston rod ends of each of the feeding cylinders being fixed to the fixed plate. Fixed cylinders are also symmetrically fixed on both sides of the fixed plate, and the piston rod ends of each of the fixed cylinders are fixed with fixed blocks. After the magnetic core is placed between the two fixed blocks, the fixed cylinders are activated, the piston rods on the fixed cylinders extend, and the two fixed blocks secure the magnetic core from both sides.

[0009] Preferably, a positioning block is fixed on the bottom plate between the two fixing blocks. When the magnetic core is placed, the magnetic core is positioned by the positioning block.

[0010] Compared with the existing technology, the present invention has the following advantages:

[0011] The device can be used to grind the inner hole of the magnetic core, and can effectively clean the burrs on the inner hole of the magnetic core. BRIEF DESCRIPTION OF THE DRAWINGS

[0012] The specific embodiments of the present invention are further described in detail below with reference to the accompanying drawings, wherein:

[0013] Figure 1 It is a structural schematic diagram of the present invention;

[0014] Figure 2 It is another structural schematic diagram of the present invention;

[0015] Figure 3 for Figure 1 Enlarged view of point A in the middle;

[0016] Figure 4 for Figure 2 Enlarged view of point B in the middle;

[0017] In the figure: 1. bottom plate; 2. top plate; 3. lifting cylinder; 4. rotating block; 5. positioning plate; 6. turntable; 7. support rod; 8. limit block; 9. spring; 10. slider; 11. grinding roller; 12. grinding motor; 13. slide rail; 14. push rod; 15. support shaft; 16. push plate; 17. gear ring; 18. support plate; 19. rotating motor; 20. gear; 21. support ring; 22. feeding cylinder; 23. fixing plate; 24. fixing cylinder; 25. fixing block; 26. magnetic core; 27. positioning block; DETAILED DESCRIPTION

[0018] The embodiments of the present invention are described in detail below with reference to the accompanying drawings:

[0019] Example 1:

[0020] like Figures 1 to 4As shown, this embodiment discloses a ring core grinding device, comprising a bottom plate 1, a top plate 2 is fixed above the bottom plate 1, a lifting cylinder 3 is fixed on the top plate 2, a rotating block 4 is fixed to the end of the piston rod of the lifting cylinder 3, a positioning plate 5 rotatably connected to the rotating block 4 is provided on the rotating block 4, a turntable 6 is provided below the positioning plate 5, a plurality of support rods 7 are fixed on the turntable 6, the support rods 7 pass through the positioning plate 5 and are slidably connected to the positioning plate 5, a limit block 8 is fixed on the top of the support rods 7, and a plurality of springs 9 are fixed between the positioning plate 5 and the turntable 6. A slider 10 is also provided above the turntable 6, and a grinding motor 12 is fixed on the slider 10. A grinding roller 11 is fixed to the output end of the grinding motor 12. A plurality of slide rails 13 are also fixed on the turntable 6. The slide rails 13 pass through the slider 10 and are slidably connected to the slider 10. A push rod 14 is also fixed on the slider 10, and a support shaft 15 is also fixed on the positioning plate 5. The support shaft 15 is connected to the push rod 14 through the push plate 16. A support plate 18 is also fixed above the bottom plate 1, and a support ring 21 is fixed on the support plate 18. The turntable 6 is driven to rotate by the rotating motor 19. The magnetic core 26 to be polished is fixed on the bottom plate 1, the lifting cylinder 3 is started, the piston rod on the lifting cylinder 3 is extended, the positioning plate 5 drives the turntable 6 to descend, and the grinding roller 11 descends with the turntable 6. The bottom of the grinding roller 11 is inserted into the inner hole of the magnetic core 26. After the turntable 6 contacts the support ring 21, the turntable 6 stops moving, and after the ring gear 17 on the turntable 6 contacts the gear 20, the ring gear 17 engages with the gear 20. After the turntable 6 stops, the positioning plate 5 continues to descend, and the support shaft 15 on the positioning plate 5 pushes the slider 10 to move through the push plate 16, and the grinding roller 1 As the slider 10 moves, the grinding roller 11 moves close to the inner wall of the magnetic core 26. After the grinding roller 11 contacts the inner wall of the magnetic core 26, the positioning plate 5 stops descending, and the grinding roller 11 is driven to rotate by the grinding motor 12, and the turntable 6 is driven to rotate by the rotating motor 19. The grinding roller 11 moves with the turntable 6 and moves on the inner wall of the magnetic core 26. The burrs on the inner hole of the magnetic core 26 are polished by the rotating grinding roller 11. The device can realize the polishing of the inner hole of the magnetic core 26 and effectively clean the burrs on the inner hole of the magnetic core 26.

[0021] A ring gear 17 is fixed on the turntable 6 , and a gear 20 is fixed to the output end of the rotary motor 19 , and the gear 20 is meshed with the ring gear 17 .

[0022] Example 2:

[0023] This embodiment discloses a circular magnetic core polishing device. Building on the structure and principles of Example 1, this embodiment further features multiple feed cylinders 22 fixed to the base plate 1. The piston rods of these feed cylinders 22 are each secured to a fixed plate 23. Fixed cylinders 24 are also symmetrically secured to either side of the fixed plate 23. The piston rods of these fixed cylinders 24 are each secured to a fixed block 25. After a magnetic core 26 is placed between the two fixed blocks 25, the fixed cylinders 24 are activated, extending their piston rods. The two fixed blocks 25 secure the core 26 from both sides.

[0024] A positioning block 27 is further fixed on the bottom plate 1 between the two fixing blocks 25. When the magnetic core 26 is placed, the positioning block 27 is used to position the magnetic core 26.

[0025] The above are only preferred embodiments of the present invention. It should be pointed out that for ordinary technicians in this technical field, various changes, modifications, replacements and variations can be made to these embodiments without departing from the technical principles of the present invention. These changes, modifications, replacements and variations should also be regarded as the scope of protection of the present invention.

Claims

1. A ring core grinding device, comprising a bottom plate, characterized in that: There is a collecting box on opposite at case shell inlet, and the lower end of the casing is provided with a guide rail, and the guide rails are respectively provided with a guide rail for conveying messages by driving a conveyor belt, and the guide rails are connected with the guide rails by a guide rail.

2. The ring core grinding device according to claim 1, characterized in that: A gear ring is fixed on the turntable, a gear is fixed on the output end of the rotating motor, and the gear is meshed with the gear ring.

3. The ring core grinding device according to claim 1, characterized in that: A plurality of feeding cylinders are fixed on the bottom plate, and the ends of the piston rods of the feeding cylinders are fixed to the fixed plate. Fixed cylinders are symmetrically fixed on both sides of the fixed plate, and the ends of the piston rods of the fixed cylinders are fixed with fixed blocks.

4. The ring core grinding device according to claim 3, characterized in that: A positioning block is also fixed on the bottom plate between the two fixing blocks.

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