Permanent magnetic ferrite grinding device

Abstract

The utility model relates to the technical field of permanent magnetic ferrite grinding, in particular to a permanent magnetic ferrite grinding device. In order to conveniently and effectively remove chippings on a polishing piece, the following scheme is adopted: the polishing device comprises a motor, one end face, facing an output shaft, of the motor is detachably connected with a buckling cover, the center of the buckling cover is of a hollow structure so that the output shaft of the motor can penetrate through the buckling cover, the buckling cover is fixedly connected with a round wall surrounding the output shaft, and the round wall is sleeved with a flexible elastic sleeve; an output shaft of the motor is detachably connected with a connecting shaft piece which is coaxially arranged, and the connecting shaft piece is detachably connected with a grinding piece which is coaxially arranged. The flexible elastic sleeve is tightly attached to the outer wall of the grinding piece through the inward contraction force of the flexible elastic sleeve, magnetic chippings on the wall face of the grinding piece are wiped down, and after wiping maintenance is completed, the flexible elastic sleeve is arranged on the grinding piece in a sleeving mode, and finally the flexible elastic sleeve is squeezed and pushed to the round wall. And residual chippings on the outer wall surface of the polishing piece can be adhered down through the viscous material adhered on the outer wall surface of the flexible elastic sleeve.

Description

Technical Field

[0001] The utility model relates to the technical field of permanent ferrite grinding, in particular to a permanent ferrite grinding device. Background Art

[0002] During the processing of permanent ferrites, it is often necessary to deal with hollow rotating structures, which have a wide grinding area and many edge positions. This type of rotating grinding part is not only small in size, but also due to its unique internal structure, the debris generated during the grinding process is also correspondingly small and difficult to detect. These small debris are very easy to adhere to the surface of the grinding part due to the rotating airflow and material friction during continuous and high-speed grinding operations.

[0003] As the main tool in this process, the operation of handheld grinding equipment itself requires the operator to be highly focused and finely controlled. It is necessary to ensure the uniformity and accuracy of grinding, and to always pay attention to the state of the grinding workpiece and the accumulation of debris. However, this operation mode itself limits the operator's ability to effectively clean up debris during the grinding process. Especially when both hands are required to hold the grinding equipment and the workpiece, carrying and frequently using additional wiping tools undoubtedly increases the complexity and inconvenience of the operation. Due to the small size of the debris and the complexity of the surface of the grinding workpiece, ordinary wiping tools have poor wrapping properties. Through multiple wiping at multiple angles, only most of the debris on the surface can be removed, which is prone to residue and defects. Utility Model Content

[0004] The utility model provides a permanent ferrite grinding device, which aims to conveniently remove the debris on the grinding piece.

[0005] The above purpose is achieved through the following technical solutions:

[0006] A permanent magnet ferrite grinding device comprises a motor, wherein a buckle cover is detachably connected to one end surface of the motor facing the output shaft, the center of the buckle cover is a hollow structure for allowing the motor output shaft to pass through, a circular wall surrounding the output shaft is fixedly connected to the buckle cover, a flexible elastic sleeve is sleeved on the circular wall, a coupling piece coaxially arranged is detachably connected to the output shaft of the motor, and a grinding piece coaxially arranged is detachably connected to the coupling piece.

[0007] The flexible elastic sleeve is a sponge.

[0008] The inner and outer wall surfaces of the flexible elastic sleeve are fixedly connected with cloth, or the flexible elastic sleeve is wrapped with cloth.

[0009] The outer wall surface of the flexible elastic sleeve is covered with plasticine or fixed with an adhesive tape, and the adhesive surface of the adhesive tape faces outwards.

[0010] A release paper is adhered to the adhesive surface of the tape.

[0011] A keyway is arranged on the output shaft of the motor, a connecting plate I is fixedly connected to the output shaft of the motor, and the connecting plate I is located inside the circular wall;

[0012] The coupling member comprises a connecting shaft, an upper end of the connecting shaft is provided with an axial hole, a key located in the axial hole is fixedly connected to the connecting shaft, and a connecting plate II and a connecting plate III are respectively fixedly connected to the upper and lower ends of the connecting shaft;

[0013] The output shaft of the motor is inserted into the shaft hole, the key is matched in the keyway, the connecting plate I and the connecting plate II are detachably connected, and the connecting plate III and the grinding piece are detachably connected.

[0014] The lower end of the connecting plate III is fixedly connected to a transmission head with a multi-faceted structure, and the upper end of the grinding piece is provided with a matching groove, the shape and size of the matching groove are respectively the same as the shape and size of the transmission head, and the transmission head is inserted into the matching groove.

[0015] The transmission head is a square body or a cross body.

[0016] The upper end of the motor is fixedly connected to a rear cover, and a holding arm is fixedly connected to each of the four corners of the rear cover. The four holding arms are respectively attached to the four corners of the motor. A columnar handle is fixedly connected to the upper end of the rear cover, and an anti-slip pattern is arranged on the outer circumference of the handle. The lower ends of the four holding arms are detachably connected to the buckle cover.

[0017] The handle is provided with a radially conductive grip.

[0018] The beneficial effects of the permanent ferrite grinding device of the utility model are:

[0019] While holding and pulling the flexible elastic sleeve downward, the inward contraction force of the flexible elastic sleeve makes it close to the outer wall of the polishing piece, and the magnetic debris on the wall of the polishing piece is wiped off. After wiping and maintenance, the flexible elastic sleeve is put on the polishing piece again, and finally pushed onto the circular wall. The residual debris on the outer wall of the polishing piece can also be adhered to by the sticky material attached to the outer wall of the flexible elastic sleeve. BRIEF DESCRIPTION OF THE DRAWINGS

[0020] Figure 1 It is a structural schematic diagram of a permanent ferrite grinding device;

[0021] Figure 2 for Figure 1 Enlarged view of point A in the middle;

[0022] Figure 3 It is a structural schematic diagram of the keyway and the connecting plate I;

[0023] Figure 4 It is a schematic diagram of the connection between the output shaft and the connecting piece;

[0024] Figure 5 It is a schematic diagram of the connection between the connecting piece and the polishing piece;

[0025] Figure 6 is a schematic diagram of the connecting parts;

[0026] Figure 7 is a schematic diagram of a polished part;

[0027] Figure 8 It is a schematic diagram of a back cover 401 , an arm 402 , a handle 403 and a grip 404 .

[0028] In the figure: motor 101; keyway 102; connecting plate I 103; buckle cover 104; round wall 105; flexible elastic sleeve 106; connecting shaft 201; shaft hole 202; key 203; connecting plate II 204; connecting plate III 205; transmission head 206; grinding piece 301; matching groove 302; back cover 401; arm 402; handle 403; grip 404. DETAILED DESCRIPTION

[0029] A permanent ferrite grinding device, reference Figure 1 , including a motor 101 with an output shaft facing downward, a buckle cover 104 is detachably connected to the lower end surface of the motor 101 housing by bolts, the center of the buckle cover 104 is a hollow structure, the output shaft of the motor 101 passes through the hollow structure from top to bottom, a circular wall 105 surrounding the hollow structure is fixedly connected to the buckle cover 104, the output shaft of the motor 101 is located in the circular wall 105, the circular wall 105 is coaxially arranged with the output shaft of the motor 101, a flexible elastic sleeve 106 is sleeved on the circular wall 105, the lower end of the output shaft of the motor 101 is detachably connected to a coupling, the coupling is coaxially arranged with the output shaft of the motor 101, the lower end of the coupling is detachably connected to a cylindrical grinding piece 301, the grinding piece 301 is coaxially arranged with the output shaft of the motor 101;

[0030] Preferably, the diameter of the circular wall 105 is smaller than the diameter of the grinding piece 301, the maximum diameter of the coupling is not larger than the diameter of the grinding piece 301, and the inner diameter of the flexible elastic sleeve 106 is not larger than the diameter of the circular wall 105, so that when the flexible elastic sleeve 106 is sleeved on the circular wall 105, the flexible elastic sleeve 106 is stretched open, and when the flexible elastic sleeve 106 is pulled downward, the flexible elastic sleeve 106 is squeezed onto the outer wall surface of the grinding piece 301, and the magnetic debris on the wall surface of the grinding piece 301 is wiped off. After wiping and maintenance are completed, the flexible elastic sleeve 106 is sleeved on the grinding piece 301 again, and finally squeezed onto the circular wall 105.

[0031] Preferably, the flexible elastic sleeve 106 is a sponge. Cloth is fixedly connected to the inner and outer wall surfaces of the flexible elastic sleeve 106, or the flexible elastic sleeve 106 is covered with cloth.

[0032] The outer wall surface or fabric of the flexible elastic sleeve 106 is coated with plasticine, or fixed with tape, and the adhesive surface of the tape faces outward. When the flexible elastic sleeve 106 is removed, the plasticine or tape is used to stick to the remaining debris.

[0033] Preferably, a release paper is adhered to the adhesive surface of the adhesive tape, and the release paper is removed to expose the adhesive surface.

[0034] A keyway 102 is provided on the output shaft of the motor 101, and a connecting plate Ⅰ 103 is fixedly connected to the output shaft of the motor 101, and the connecting plate Ⅰ 103 is located inside the circular wall 105;

[0035] The coupling member includes a connecting shaft 201, an upper end of the connecting shaft 201 is provided with an axial hole 202, a key 203 located in the axial hole 202 is integrally connected to the connecting shaft 201, and a connecting plate II 204 and a connecting plate III 205 are integrally connected to the upper and lower ends of the connecting shaft 201 respectively;

[0036] The output shaft of the motor 101 is just inserted into the shaft hole 202, and the key 203 cooperates in the key slot 102 to form a key connection. The connecting plate I 103 and the connecting plate II 204 are detachably connected by a bolt and nut assembly, so that the output shaft of the motor 101 can drive the connecting plate II 204 to rotate around the axis of the output shaft, and the connecting plate III 205 and the grinding piece 301 are detachably connected by screws or bolts.

[0037] The lower end of the connecting disk III 205 is fixedly connected to the transmission head 206 with a polygonal structure, and the upper end of the grinding piece 301 is provided with a matching groove 302. The shape and size of the matching groove 302 are respectively the same as the shape and size of the transmission head 206. The transmission head 206 is just inserted into the matching groove 302, so that the transmission head 206 can drive the grinding piece 301 to rotate around the axis of the transmission head 206.

[0038] Preferably, the transmission head 206 is a cube or a cross.

[0039] Among them, the diameters of connecting disk III 205 and polishing piece 301 are the same, the diameter of connecting disk II 204 is smaller than the diameter of polishing piece 301, the diameter of connecting disk II 204 is the same as the diameter of connecting disk I 103, the diameter of circular wall 105 is smaller than the diameter of polishing piece 301, and the inner diameter of circular wall 105 is larger than the diameter of connecting disk II 204.

[0040] To facilitate holding and improve the stability of the connection of the holding part, a back cover 401 is fixed to the upper end of the motor 101, and an arm 402 is fixed to each of the four corners of the back cover 401. The four arms 402 are respectively attached to the four corners of the motor 101, and a columnar handle 403 is fixed to the upper end of the back cover 401. The outer circumferential surface of the handle 403 is provided with anti-slip patterns. The lower ends of the four arms 402 are detachably connected to the buckle cover 104, and the handle 403 is provided with a radially conductive grip 404 for fingers to pass through.

Claims

1. A permanent ferrite grinding device, comprising a motor (101), characterized in that: A buckle cover (104) is detachably connected to one end surface of the motor (101) facing the output shaft, the center of the buckle cover (104) is a hollow structure for the output shaft of the motor (101) to pass through, a circular wall (105) surrounding the output shaft is fixedly connected to the buckle cover (104), a flexible elastic sleeve (106) is sleeved on the circular wall (105), a coupling piece coaxially arranged is detachably connected to the output shaft of the motor (101), and a grinding piece (301) coaxially arranged is detachably connected to the coupling piece.

2. The permanent ferrite grinding device according to claim 1, characterized in that: The flexible elastic sleeve (106) is a sponge.

3. The permanent ferrite grinding device according to claim 2, characterized in that: Cloth is fixedly connected to the inner and outer wall surfaces of the flexible elastic sleeve (106), or the flexible elastic sleeve (106) is wrapped with cloth.

4. The permanent ferrite grinding device according to claim 3, characterized in that: The outer wall surface of the flexible elastic sleeve (106) is coated with plasticine or fixed with an adhesive tape, with the adhesive surface of the adhesive tape facing outwards.

5. The permanent ferrite grinding device according to claim 4, characterized in that: A release paper is adhered to the adhesive surface of the tape.

6. The permanent ferrite grinding device according to claim 1, characterized in that: A keyway (102) is provided on the output shaft of the motor (101), a connecting disk I (103) is fixedly connected to the output shaft of the motor (101), and the connecting disk I (103) is located inside the circular wall (105); The shaft coupling comprises a connecting shaft (201), the upper end of the connecting shaft (201) is provided with a shaft hole (202), the connecting shaft (201) is fixedly connected with a key (203) located in the shaft hole (202), and the upper and lower ends of the connecting shaft (201) are respectively fixedly connected with a connecting disk II (204) and a connecting disk III (205); The output shaft of the motor (101) is inserted into the shaft hole (202), the key (203) is matched in the key slot (102), the connecting plate I (103) and the connecting plate II (204) are detachably connected, and the connecting plate III (205) and the grinding piece (301) are detachably connected.

7. The permanent ferrite grinding device according to claim 6, characterized in that: The lower end of the connecting plate III (205) is fixedly connected to a transmission head (206) having a multi-faceted structure, and the upper end of the grinding piece (301) is provided with a matching groove (302). The shape and size of the matching groove (302) are respectively the same as those of the transmission head (206), and the transmission head (206) is inserted into the matching groove (302).

8. The permanent ferrite grinding device according to claim 7, characterized in that: The transmission head (206) is a cube or a cross.

9. The permanent ferrite grinding device according to claim 1, characterized in that: The upper end of the motor (101) is fixedly connected to a rear cover (401), and each of the four corners of the rear cover (401) is fixedly connected to an arm (402). The four arms (402) are respectively attached to the four corners of the motor (101). The upper end of the rear cover (401) is fixedly connected to a columnar handle (403), and an anti-slip pattern is arranged on the outer circumferential surface of the handle (403). The lower ends of the four arms (402) are detachably connected to the buckle cover (104).

10. The permanent ferrite grinding device according to claim 9, characterized in that: The handle (403) is provided with a radially conductive gripping opening (404).

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