Permanent magnet ferrite double-head chamfer grinding device and grinding method

Abstract

The application discloses a permanent magnet ferrite double-head chamfer grinding device and a grinding method. The device comprises a grinding head, a mounting bracket and a clamping assembly. The clamping assembly comprises a clamping part. An upward pushing movement of a handle drives a pushing rack to move. After transmission by coaxial first and second gears, a connecting rod quickly drives an upper rotary rod and a clamping plate to move downward to clamp a ferrite disc. After the lower rotary rod is driven to rotate, two clamping blocks rotate the ferrite disc to be ground by the grinding head. By the coaxial first and second gears, a small range of pushing movement of the handle can quickly drive the connecting rod to move the upper rotary rod and the clamping plate downward. Without adjusting the clamping mechanism, the ferrite disc with different heights can be clamped. The distance of the applied pushing force is short, and the user can push and hold the handle together with the fixed handle.

Description

Technical Field

[0001] The invention belongs to the technical field of permanent magnet production, and in particular relates to a permanent magnet ferrite double-head chamfering grinding device and a grinding method of the permanent magnet ferrite double-head chamfering grinding device. Background Art

[0002] Permanent magnets are materials with wide hysteresis loops, high coercive force, and high remanence. Once magnetized, they can maintain constant magnetism. They are widely used in various fields such as electronics, electrical engineering, machinery, transportation, medical treatment, and daily necessities. During the production process of permanent magnets, the ends of the magnet body need to be chamfered to reduce the missing corners and enable better electroplating of the magnet body.

[0003] In the prior art, when chamfering cylindrical permanent magnet ferrite, if there are ferrite discs of different heights, the position of the clamping mechanism needs to be adjusted back and forth, or the user needs to classify them before clamping. When the height difference of the ferrite discs is small, the clamping mechanism still needs to be adjusted to adapt to the clamping of the ferrite discs. Summary of the Invention

[0004] The present invention addresses the problem in the prior art that the clamping mechanism needs to be adjusted back and forth when processing oxide circular plates of different heights, and proposes the following technical solutions:

[0005] A double-head chamfer grinding device for permanent ferrite, a grinding head, a mounting bracket and a clamping assembly, wherein the clamping assembly includes a clamping portion, the clamping portion includes a connecting block and two rotating rods, the rotating rod is rotatably inserted into the mounting bracket, a clamping plate is provided at one end of the rotating rod, a fixed handle and a movable handle are provided at one side of the connecting block, a pushing rack is provided at one end of the movable handle, a first gear is meshedly connected to one side of the pushing rack, the first gear is coaxially fixedly connected to the second gear, a torsion spring is provided between the second gear and the connecting block, the second gear is meshedly connected to one side of the connecting rod, and one end of the connecting rod is sleeved on the surface of the upper rotating rod;

[0006] Pushing the moving handle upward drives the pushing rack to move. Under the transmission of the coaxial first gear and the second gear, the connecting rod quickly drives the upper rotating rod and the clamping plate to move downward to clamp the oxygen body circular plate, and after the lower rotating rod is driven to rotate, the two clamping blocks drive the oxygen body circular plate to rotate and the grinding head performs grinding and chamfering work.

[0007] As a preferred embodiment of the above technical solution, the clamping assembly also includes an adjustment part, which is connected to the mounting bracket through the adjustment part. With the cooperation of the adjustment part, the clamping assembly drives the oxide circular plate to move back and forth in the vertical direction so that both ends of it are chamfered by the grinding head.

[0008] As a preferred embodiment of the above technical solution, the adjustment portion includes an adjustment rod, one end of which is sleeved on the surface of the lower rotating rod, and a first spring is provided between both sides of the end of the adjustment rod and the mounting bracket.

[0009] As a preferred embodiment of the above technical solution, a plug-in rod is movably connected to the bottom of the lower rotating rod, the end of the plug-in rod is fixedly connected to the output end of the external motor, and the plug-in rod is set in a polygonal shape.

[0010] As a preferred embodiment of the above technical solution, it also includes a moving component, which includes a screw rod and a connecting seat. The screw rod is rotatably inserted into the external workbench, and a slider is threadedly sleeved on the surface of the screw rod. The slider is movably inserted into the connecting seat, and a second spring is fixedly connected between the slider and the connecting seat.

[0011] As a preferred embodiment of the above technical solution, the surfaces of the fixed handle and the movable handle are both provided with anti-slip covers, and the surfaces of the anti-slip covers are provided in the shape of convex dots.

[0012] As a preferred embodiment of the above technical solution, the clamping plate and the rotating rod are threadedly connected, and the clamping plate can be rotated and removed to replace different diameters.

[0013] The grinding method of the permanent ferrite double-head chamfering grinding device comprises the following steps:

[0014] S1, place the oxygen body circular plate and clamp it;

[0015] The external mechanism places the oxide circular plate to be processed on the lower clamping plate and keeps it coaxial with the lower clamping plate;

[0016] S2, clamping the oxygen body circular plate;

[0017] Push the moving handle upward to drive the push rack to move. Under the transmission of the coaxial first gear and the second gear, the connecting rod quickly drives the upper rotating rod and the clamping plate to move downward to clamp the oxygen body circular plate;

[0018] S3, performing grinding;

[0019] After the rotating rod below is driven to rotate, the two clamping blocks drive the oxide circular plate to rotate and the grinding head performs grinding and chamfering work.

[0020] The beneficial effects of the present invention are:

[0021] 1. Through the coaxially arranged first and second gears, a small push on the movable handle can cause the connecting rod to quickly drive the upper rotating rod and the clamping plate downward. Oxygen discs of different heights can be clamped without adjusting the clamping mechanism. At the same time, the pushing force is applied over a short distance, making it convenient for the user to push the movable handle and hold the fixed handle together.

[0022] 2. The adjustment part is set to connect the lower rotating rod with the clamping part, and then the clamping part is moved upward or downward as a whole by moving the movable handle and the fixed handle of the barrel, and the maximum downward or upward movement distance of the oxide circular plate is limited. The two ends of the oxide circular plate can only be moved to contact with the grinding head, which is convenient for grinding and chamfering. BRIEF DESCRIPTION OF THE DRAWINGS

[0023] Figure 1 What is shown is a schematic diagram of the overall structure of the embodiment;

[0024] Figure 2 Shown is a schematic diagram of the installation of the clamping assembly in the embodiment;

[0025] Figure 3 Shown is a diagram showing the structural positions of various parts of the clamping assembly in the embodiment;

[0026] Figure 4 Shown is the overall structural diagram of the moving assembly in the embodiment.

[0027] In the figure: 10, grinding head; 20, mounting bracket; 30, clamping assembly; 311, connecting block; 312, rotating rod; 313, clamping plate; 314, fixed handle; 315, moving handle; 316, pushing rack; 317, first gear; 318, second gear; 319, connecting rod; 321, adjusting rod; 322, first spring; 33, anti-slip sleeve; 40, plug-in rod; 50, moving assembly; 51, screw rod; 52, connecting seat; 53, slider; 54, second spring. DETAILED DESCRIPTION

[0028] In order to make the purpose, technical solutions and advantages of the embodiments of the present invention clearer, the technical solutions of the present invention will be clearly and completely described below in conjunction with the embodiments.

[0029] Example 1

[0030] Figure 1-Figure 3 In the embodiment, the double-head chamfer grinding device for permanent ferrite includes a grinding head 10, a mounting bracket 20 and a clamping assembly 30, wherein the clamping assembly 30 includes a clamping portion, and the clamping portion includes a connecting block 311 and two rotating rods 312, the rotating rod 312 is rotatably inserted into the mounting bracket 20, and a clamping plate 313 is provided at one end of the rotating rod 312, a fixed handle 314 and a movable handle 315 are provided on one side of the connecting block 311, and a pushing rack 316 is provided at one end of the movable handle 315, and one side of the pushing rack 316 is meshed with a first gear 317, and the first gear 317 is coaxially fixedly connected to the second gear 318, a torsion spring is provided between the second gear 318 and the connecting block 311, and one side of the second gear 318 is meshed with a connecting rod 319, and one end of the connecting rod 319 is sleeved on the surface of the upper rotating rod 312;

[0031] Pushing the movable handle 315 upward drives the pushing rack 316 to move. Under the transmission of the coaxial first gear 317 and the second gear 318, the connecting rod 319 quickly drives the upper rotating rod 312 and the clamping plate 313 to move downward to clamp the oxygen-containing circular plate. After the lower rotating rod 312 is driven to rotate, the two clamping blocks drive the oxygen-containing circular plate to rotate and the grinding head 10 performs grinding and chamfering work.

[0032] Before grinding and chamfering the oxygen body circular plate, the external mechanism places the oxygen body circular plate on the lower clamping plate 313 and keeps the oxygen body circular plate and the lower clamping plate 313 coaxial. Then the user holds or controls the external mechanism to push and move it. The moving handle 315 drives the pushing rack 316 to move. Under the transmission of the coaxial first gear 317 and the second gear 318, the connecting rod 319 quickly drives the upper rotating rod 312 and the clamping plate 313 to move down to clamp the oxygen body circular plate. The diameter of the second gear 318 is 5 times that of the first gear 317. When the wheel 317 drives the second gear 318 to rotate, the torsion spring is twisted and deformed, and the second gear 318 drives the connecting rod 319 to move at a linear speed greater than the first gear 317. Pushing the moving handle 315 a short distance can enable the upper clamping plate 313 to clamp the oxygen disc, and then the lower rotating rod 312 is driven to rotate by the external power mechanism, and the two clamping blocks then drive the oxygen disc to rotate and be ground and chamfered by the grinding head 10. After the grinding is completed, the moving handle 315 is released, and the torsion spring resets and drives the clamping assembly 30 to reset.

[0033] By means of the coaxially arranged first gear 317 and second gear 318, a small push of the movable handle 315 can cause the connecting rod 319 to quickly drive the upper rotating rod 312 and the clamping plate 313 to move downward, so that oxygen circular plates of different heights can be clamped without adjusting the clamping mechanism. At the same time, the pushing force applied is short, which makes it convenient for the user to push the movable handle 315 and hold the fixed handle 314 together.

[0034] The grinding method of the permanent ferrite double-head chamfering grinding device comprises the following steps:

[0035] S1, place the oxygen body circular plate and clamp it;

[0036] The external mechanism places the oxide circular plate to be processed on the lower clamping plate 313 and keeps it coaxial with the lower clamping plate 313;

[0037] S2, clamping the oxygen body circular plate;

[0038] Push the moving handle 315 upward to drive the pushing rack 316 to move. Under the transmission of the coaxial first gear 317 and the second gear 318, the connecting rod 319 quickly drives the upper rotating rod 312 and the clamping plate 313 to move downward to clamp the oxygen body circular plate.

[0039] S3, performing grinding;

[0040] After the lower rotating rod 312 is driven to rotate, the two clamping blocks drive the oxide circular plate to rotate and the grinding head 10 performs grinding and chamfering.

[0041] In the technical solution of the grinding method of the permanent magnet ferrite double-head chamfer grinding device, through the coaxially arranged first gear 317 and second gear 318, the connecting rod 319 can quickly drive the upper rotating rod 312 and the clamping plate 313 to move downward by pushing the movable handle 315 in a small range, and the ferrite circular plates of different heights can be clamped without adjusting the clamping mechanism. After the user pushes the movable handle 315 in a small range, the movable handle 315 and the fixed handle 314 can be held in one hand at the same time. At the same time, the distance between the movable handle 315 and the fixed handle 314 is short, and there is no discomfort when holding the handle.

[0042] Figure 1-Figure 3 In the embodiment, the clamping assembly 30 further includes an adjustment portion, through which the clamping portion is connected to the mounting bracket 20 . With the cooperation of the adjustment portion, the clamping assembly 30 drives the oxide circular plate to move back and forth in the vertical direction so that both ends of the plate are ground and chamfered by the grinding head 10 .

[0043] The adjustment portion includes an adjustment rod 321 , one end of which is sleeved on the surface of the lower rotating rod 312 , and first springs 322 are provided between both sides of the end of the adjustment rod 321 and the mounting bracket 20 .

[0044] After the oxidizer disc is clamped and fixed, the movable handle 315 and the fixed handle 314 are held and the clamping part is pushed to move. The two first springs 322 are stretched or squeezed accordingly. During the upward or downward movement of the oxidizer disc, the oxidizer disc contacts the grinding head 10 and pushes the grinding head 10 to rotate. The two ends of the oxidizer disc are ground and chamfered in turn.

[0045] The adjustment part is provided to connect the lower rotating rod 312 with the clamping part, and then the clamping part is moved upward or downward as a whole by moving the movable handle 315 and the fixed handle 314 through the cylinder, and the maximum downward or upward movement distance of the oxide circular plate is limited. The two ends of the oxide circular plate can only be moved to contact the grinding head 10, which is convenient for grinding and chamfering.

[0046] Figure 1-Figure 2 In the figure, a plug-in rod 40 is movably connected to the bottom of the lower rotating rod 312, and the end of the plug-in rod 40 is fixedly connected to the output end of the external motor. The plug-in rod 40 is set in a polygonal shape.

[0047] When the lower rotating rod 312 is pushed downward or upward, the plug-in rod 40 is always inserted into the lower rotating rod 312, ensuring that the external motor drives the lower rotating rod 312 to rotate normally through the plug-in rod 40, thereby causing the two clamping blocks to drive the oxide circular plate to rotate and be ground by the grinding head 10.

[0048] Figure 1 and Figure 4 In the embodiment, the permanent magnet ferrite double-head chamfering grinding device also includes a moving component 50, which includes a screw rod 51 and a connecting seat 52. The screw rod 51 is rotatably inserted into the external workbench, and a slider 53 is threadedly sleeved on the surface of the screw rod 51. The slider 53 is movably inserted into the connecting seat 52, and a second spring 54 is fixedly connected between the slider 53 and the connecting seat 52.

[0049] Before processing the oxide circular plates of different diameters, the rotating screw 51 drives the slider 53 to move, and the connecting seat 52 then drives the mounting frame and the clamping assembly 30 to move horizontally. After the oxide circular plate is placed and clamped, the oxide circular plate is partially displaced by pushing the clamping assembly 30 to increase the contact area between the oxide circular plate and the grinding head 10, thereby increasing the processing depth of the oxide circular plate.

[0050] Figure 1-Figure 3 In the embodiment, the surfaces of the fixed handle 314 and the movable handle 315 are both provided with anti-slip covers 33 , and the surfaces of the anti-slip covers 33 are provided in the shape of convex dots.

[0051] The anti-slip cover 33 provided on the fixed handle 314 and the movable handle 315 can increase the friction force during manual operation by the user, making the user more stable when holding the handle.

[0052] Figure 1-Figure 3 In the embodiment, the clamping plate 313 and the rotating rod 312 are threadedly connected, and the clamping plate 313 can be rotated and removed to replace different diameters.

[0053] Before processing the oxygen discs of different diameters, the clamping plates 313 of different diameters can be replaced to ensure the clamping area of ​​the oxygen disc, thereby avoiding the situation where the clamping area is too small and the clamping force is insufficient, thereby preventing the oxygen disc from being clamped unstably and falling off the clamping assembly 30.

[0054] The above embodiments are only used to illustrate the technical solutions of the present invention, rather than to limit the same.

Claims

1. A permanent ferrite double-head chamfer grinding device, comprising a grinding head (10), a mounting bracket (20) and a clamping assembly (30), characterized in that: The clamping assembly (30) includes a clamping portion, which includes a connecting block (311) and two rotating rods (312). The rotating rod (312) is rotatably inserted into the mounting bracket (20). A clamping plate (313) is provided at one end of the rotating rod (312). A fixed handle (314) and a movable handle (315) are provided at one side of the connecting block (311). A pushing rack (316) is provided at one end of the movable handle (315). One side of the pushing rack (316) is meshedly connected to a first gear (317). The first gear (317) is coaxially fixedly connected to a second gear (318). A torsion spring is provided between the second gear (318) and the connecting block (311). One side of the second gear (318) is meshedly connected to a connecting rod (319). One end of the connecting rod (319) is sleeved on the surface of the upper rotating rod (312). Pushing the moving handle (315) upward drives the pushing rack (316) to move, and under the transmission of the coaxial first gear (317) and the second gear (318), the connecting rod (319) quickly drives the upper rotating rod (312) and the clamping plate (313) to move downward to clamp the oxygen body circular plate, and after the lower rotating rod (312) is driven to rotate, the two clamping plates (313) then drive the oxygen body circular plate to rotate and the grinding head (10) performs grinding and chamfering work; The clamping assembly (30) further includes an adjustment portion, and the clamping assembly is connected to the mounting bracket (20) via the adjustment portion. Under the cooperation of the adjustment portion, the clamping assembly (30) drives the oxide circular plate to move back and forth in the vertical direction so that both ends of the plate are ground and chamfered by the grinding head (10); The adjustment portion comprises an adjustment rod (321), one end of the adjustment rod (321) is sleeved on the surface of the lower rotating rod (312), and first springs (322) are provided between both sides of the end of the adjustment rod (321) and the mounting bracket (20); The clamping plate (313) and the rotating rod (312) are threadedly connected, and the clamping plate (313) can be rotated and removed to replace different diameters.

2. The double-head chamfering grinding device for permanent ferrite according to claim 1, characterized in that: A plug-in rod (40) is movably plugged into the bottom of the lower rotating rod (312), and the end of the plug-in rod (40) is fixedly connected to the output end of the external motor. The plug-in rod (40) is arranged in a polygonal shape.

3. The double-head chamfering grinding device for permanent ferrite according to claim 1, characterized in that: The movable assembly (50) further comprises a screw rod (51) and a connecting seat (52), wherein the screw rod (51) is rotatably inserted into the external workbench, a slider (53) is threadedly sleeved on the surface of the screw rod (51), and the slider (53) is movably inserted into the connecting seat (52), and a second spring (54) is fixedly connected between the slider (53) and the connecting seat (52).

4. The double-head chamfering grinding device for permanent ferrite according to claim 1, characterized in that: The surfaces of the fixed handle (314) and the movable handle (315) are both provided with anti-slip sleeves (33), and the surfaces of the anti-slip sleeves (33) are provided in the shape of convex dots.

5. The grinding method of the permanent ferrite double-head chamfering grinding device according to any one of claims 1 to 4, characterized in that: The following steps are involved: S1, place the oxygen body circular plate and clamp it; The external mechanism places the oxide circular plate to be processed on the lower clamping plate (313) and keeps it coaxial with the lower clamping plate (313); S2, clamping the oxygen body circular plate; Pushing the moving handle (315) upward drives the pushing rack (316) to move, and under the transmission of the coaxial first gear (317) and the second gear (318), the connecting rod (319) quickly drives the upper rotating rod (312) and the clamping plate (313) to move downward to clamp the oxygen body circular plate; S3, performing grinding; After the lower rotating rod (312) is driven to rotate, the two clamping plates (313) then drive the oxide circular plate to rotate and the grinding head (10) performs grinding and chamfering work.

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