Automatic chamfering device for neodymium-iron-boron magnet

Abstract

The utility model relates to the technical field of neodymium-iron-boron magnet machining, and discloses an automatic chamfering device for a neodymium-iron-boron magnet, which comprises an operation table, a servo motor fixedly connected to the center of the bottom of the operation table, a rotating motor fixedly connected to the eccentric position of the bottom of the operation table, and a bottom grinding roller rotationally connected to the top of the rotating motor. The bottom grinding roller can penetrate through the bottom of the operation table, an upper frame is fixedly connected to the side wall face of the top of the operation table, the upper frame is in an inverted L shape, a top grinding roller is fixedly connected to the lower portion of the upper frame, the top grinding roller is located over the bottom grinding roller, and a transmission structure is arranged at the top of the operation table and comprises a base disc, a safe edge, a rotating shaft and a clamping plate. The base disc is fixedly connected to the center of the top of the operation table, the safe edge is fixedly connected to the top of the base disc, the rotating shaft is rotationally connected to the top of the base disc, the clamping plate is movably connected to the wall face of the rotating shaft, and the transmission structure can fix the neodymium-iron-boron magnet to the top of the operation table.

Description

Technical Field

[0001] The utility model belongs to the technical field of NdFeB magnet processing, in particular to an automatic chamfering device for NdFeB magnets. Background Art

[0002] The prior art (publication number: CN220740494U) discloses a chamfering device for processing NdFeB magnets, comprising a workbench, a fixed cylinder, a first support frame, an inner chamfering movable plate, a second support frame and an outer chamfering movable plate.

[0003] The prior art fixes the NdFeB magnet with the required chamfer on the top of the device and then rotates and grinds it. Although the prior art can grind the NdFeB magnet, each time the magnet is manually fixed on the device and polished, it needs to be manually taken out before the next magnet can be polished. Therefore, the work efficiency of the prior art is low and the work intensity is high.

[0004] In view of this, the present utility model is proposed. Utility Model Content

[0005] In order to solve the above technical problems, the basic concept of the technical solution adopted by the utility model is:

[0006] The invention discloses an automatic chamfering device for NdFeB magnets, comprising an operating table, wherein a servo motor is fixedly connected to the bottom center of the operating table, a rotating motor is fixedly connected to the eccentric position of the bottom of the operating table, a bottom grinding roller is rotatably connected to the top of the rotating motor, and the bottom grinding roller can pass through the bottom of the operating table, an upper frame is fixedly connected to the top side wall of the operating table, the upper frame is in an inverted L shape, a top grinding roller is fixedly connected to the bottom of the upper frame, and the top grinding roller is located vertically directly above the bottom grinding roller, and a transmission structure is arranged on the top of the operating table, the transmission structure comprises a base plate, an edge guard, a rotating shaft and a clamping plate, the base plate is fixedly connected to the top center of the operating table, the edge guard is fixedly connected to the top of the base plate, the rotating shaft is rotatably connected to the top of the base plate, the clamping plate is movably connected to the wall of the rotating shaft, and the transmission structure can fix the NdFeB magnet on the top of the operating table.

[0007] As a preferred embodiment of the utility model, the base is in the shape of a disc, the top of the bottom grinding roller can pass through the base and be flush with the top of the base, a rectangular groove is opened on the side of the base opposite to the upper frame, and this rectangular groove can penetrate the top of the operating table and the wall of the base, the edge guard is in the shape of a circular ring, the outer wall of the edge guard is flush with the outer wall of the base, the bottom of the rotating shaft can pass through the base and the operating table and be connected to the output end of the servo motor, the bottom of the bottom grinding roller is connected to the output end of the rotating motor, and the rotating shaft is cylindrical.

[0008] As a preferred embodiment of the utility model, the transmission structure also includes a feed port, a clamping block, a spring groove, a spring block and a clamping groove, the feed port is opened on the front wall surface of the edge guard, the clamping block is fixedly connected to the outer wall surface of the rotating shaft, the spring groove is symmetrically opened on the front wall surface of the clamping block, the spring block is elastically connected in the spring groove by a spring, the clamping plate is fixedly connected to the front wall surface of the spring block, and the clamping groove is opened on the wall surface of the clamping plate.

[0009] As a preferred embodiment of the utility model, a plurality of clamping blocks are evenly arranged in a circular array on the outer wall surface of the rotating shaft, and a spring block and a clamping plate are arranged in each symmetrical spring groove. The spring block can slide in the spring groove, and the clamping plate is an arc-shaped plate. The inner arcs of each symmetrical clamping plate face each other, and the clamping groove is opened in the inner arc of the clamping plate, and the clamping groove is a stepped groove.

[0010] As a preferred embodiment of the utility model, the transmission structure also includes a discharge pipe, a base block, a top groove, a discharge block and a limit block. The discharge pipe is fixedly connected to the bottom position of the rectangular groove of the operating table, the base block is fixedly connected to the wall surface of the rectangular groove of the base plate, the top groove is opened at the top of the base block, the bottom of the discharge block is elastically connected in the top groove by a spring, and the limit block is symmetrically fixedly connected to the bottom of the discharge block.

[0011] As a preferred embodiment of the utility model, the discharge pipe is in the shape of a hollow box with an open top and front wall, the bottom of the discharge pipe has a slope, the spring at the bottom of the discharge block can lift the discharge block upward, the limit block can also slide in the top groove, and the dimensions of the symmetrical limit blocks and the bottom of the discharge block are larger than the dimensions of the top groove opening.

[0012] As a preferred embodiment of the utility model, the top of the top groove is flush with the top of the base plate, the cross-section of the discharge block is a right-angle trapezoid, and the outer wall surface of the clamping plate can contact the inclined surface of the discharge block wall surface.

[0013] Compared with the prior art, the utility model has the following beneficial effects:

[0014] 1. The entire process of chamfering and grinding NdFeB can be achieved by setting up a transmission structure, because the transmission structure drives the clamping plate that clamps the NdFeB magnet through a rotatable shaft and then lifts the magnet through a unloading block to complete the entire process. When the process is completed, it is only necessary to place the magnet between the clamping plates without the need for other steps. Therefore, compared with the existing technology, this solution has higher work efficiency and lower working pressure when used.

[0015] 2. By setting the clamping plate and the clamping groove, not only NdFeB magnets of different sizes can be adapted, but also NdFeB magnets of different shapes can be adapted, because the inner arc surface of the clamping plate and the special shape of the clamping groove can adapt to different magnets, thereby improving the application range of the device.

[0016] The specific implementation modes of the present utility model are further described in detail below in conjunction with the accompanying drawings. BRIEF DESCRIPTION OF THE DRAWINGS

[0017] In the attached picture:

[0018] Figure 1 It is a three-dimensional diagram of the utility model;

[0019] Figure 2 It is a bottom stereogram of the utility model;

[0020] Figure 3 This is a three-dimensional diagram of the combination of the rotating shaft and the clamping block of the utility model;

[0021] Figure 4 This is an exploded view of the clamp block and the clamp plate of the utility model;

[0022] Figure 5 This is an exploded view of the unloading block and base block of the utility model.

[0023] In the figure: 20, operating table; 21, servo motor; 22, rotating motor; 23, bottom grinding roller; 24, upper frame; 25, top grinding roller; 30, base plate; 31, edge guard; 32, feed port; 33, discharge pipe; 40, rotating shaft; 41, clamping block; 42, spring groove; 43, spring block; 44, clamping plate; 45, clamping groove; 46, base block; 47, top groove; 48, unloading block; 49, limit block. DETAILED DESCRIPTION

[0024] In order to make the purpose, technical scheme and advantages of the embodiments of the utility model clearer, the technical scheme in the embodiments will be clearly and completely described below in conjunction with the drawings in the embodiments of the utility model. The following embodiments are used to illustrate the utility model.

[0025] like Figure 1 and Figure 2 As shown, it includes an operating table 20, a servo motor 21 is fixedly connected to the bottom center of the operating table 20, a rotating motor 22 is fixedly connected to the eccentric position of the bottom of the operating table 20, and a bottom grinding roller 23 is rotatably connected to the top of the rotating motor 22, and the bottom grinding roller 23 can pass through the bottom of the operating table 20, and an upper frame 24 is fixedly connected to the top side wall of the operating table 20, and the upper frame 24 is in an inverted L shape, and a top grinding roller 25 is fixedly connected below the upper frame 24, and the top grinding roller 25 is located vertically directly above the bottom grinding roller 23, the servo motor 21 and the rotating motor 22 are electrically connected to the corresponding power supply, and another rotating motor 22 for driving the top grinding roller 25 is also installed on the top of the upper frame 24. This is an existing technology, so it will not be described here.

[0026] like Figure 1 , Figure 3 and Figure 4As shown, a transmission structure is provided on the top of the operating table 20, and the transmission structure includes a base plate 30, a side guard 31, a rotating shaft 40 and a clamping plate 44. The base plate 30 is fixedly connected to the top center of the operating table 20, the side guard 31 is fixedly connected to the top of the base plate 30, the rotating shaft 40 is rotatably connected to the top of the base plate 30, and the clamping plate 44 is movably connected to the wall of the rotating shaft 40. The transmission structure can fix the neodymium iron boron magnet on the top of the operating table 20.

[0027] like Figure 1 , Figure 2 , Figure 3 , Figure 4 and Figure 5 As shown, the base plate 30 is in the shape of a disk, the top of the bottom grinding roller 23 can pass through the base plate 30 and be flush with the top of the base plate 30, the base plate 30 is provided with a rectangular groove on the side opposite to the upper frame 24, and the rectangular groove can penetrate the top of the operating table 20 and the wall of the base plate 30, the edge guard 31 is in the shape of a ring, and the outer wall of the edge guard 31 is flush with the outer wall of the base plate 30, the bottom of the rotating shaft 40 can pass through the base plate 30 and the operating table 20 and be connected to the output end of the servo motor 21, and the bottom grinding roller 23 is provided on the side opposite to the upper frame 24, and the rectangular groove can penetrate the top of the operating table 20 and the wall of the base plate 30, and the edge guard 31 is in the shape of a ring, and the outer wall of the edge guard 31 is flush with the outer wall of the base plate 30, and the bottom of the rotating shaft 40 can pass through the base plate 30 and the operating table 20 and be connected to the output end of the servo motor 21. The bottom is connected to the output end of the rotating motor 22, the rotating shaft 40 is cylindrical, and the transmission structure also includes a feed port 32, a clamping block 41, a spring groove 42, a spring block 43 and a clamping groove 45. The feed port 32 is opened on the front wall surface of the edge guard 31, the clamping block 41 is fixedly connected to the outer wall surface of the rotating shaft 40, the spring groove 42 is symmetrically opened on the front wall surface of the clamping block 41, the spring block 43 is elastically connected in the spring groove 42 by a spring, the clamping plate 44 is fixedly connected to the front wall surface of the spring block 43, and the clamping groove 45 is opened. The transmission structure is arranged on the wall of the clamping plate 44, and the transmission structure also includes a discharge pipe 33, a base block 46, a top groove 47, a discharge block 48 and a limit block 49. The discharge pipe 33 is fixedly connected to the bottom position of the rectangular groove of the operating table 20, the base block 46 is fixedly connected to the wall surface in the rectangular groove of the base plate 30, the top groove 47 is opened at the top of the base block 46, the bottom of the discharge block 48 is elastically connected in the top groove 47 by a spring, and the limit block 49 is symmetrically fixedly connected to the bottom of the discharge block 48. It is a hollow box with an open top and front wall. The bottom of the discharge pipe 33 has a slope. The spring at the bottom of the discharge block 48 can push the discharge block 48 upward. The limit block 49 can also slide in the top groove 47. The size of the symmetrical limit block 49 and the bottom of the discharge block 48 is larger than the size of the opening of the top groove 47. The top of the top groove 47 is flush with the top of the base plate 30. The cross section of the discharge block 48 is a right-angle trapezoid. The outer wall of the clamping plate 44 can contact the inclined surface of the wall of the discharge block 48.

[0028] During specific use, first place the magnet to be chamfered between the symmetrical clamping plates 44 at the feed port 32. When the magnet is placed between the clamping plates 44, the spring on the wall of the spring block 43 can push the spring block 43 in the direction of the other symmetrical spring block 43. The spring block 43 can drive the clamping plates 44 to move at the same time so as to contact the two wall surfaces of the magnet. At this time, the power can be turned on. When the power is turned on, the bottom grinding roller 23 and the top grinding roller 25 will rotate at high speed, and the servo motor 21 will drive the rotating shaft 40 to drive the clamping plate 44 holding the magnet to move to the bottom of the top grinding roller 25. When the clamping plate 44 drives the clamping plate 44 and the magnet to move to the bottom of the top grinding roller 25, the top grinding roller 25 will grind the top of the magnet, and the bottom grinding roller 23 will grind the bottom of the magnet. Grinding is performed. After the magnet is ground, the rotating shaft 40 will rotate again and drive the clamping plate 44 to rotate toward the base block 46. When the clamping plate 44 and the magnet move to the base block 46, the clamping plate 44 on one side will first contact the discharge block 48 and squeeze the discharge block 48 back into the top groove 47 along the inclined surface of the discharge block 48. When the clamping plate 44 passes over the top of the discharge block 48, the spring at the bottom of the discharge block 48 will quickly push the discharge block 48 upward, thereby pushing the symmetrical magnets between the clamping plates 44 down from between the clamping plates 44. When the magnet is pushed down by the discharge block 48, it will pass through the rectangular grooves on the wall of the base plate 30 and the operating table 20 and fall into the discharge pipe 33 and slide out of the discharge pipe 33 along the slope at the bottom of the discharge pipe 33. At this point, the chamfering of the magnet is completed.

[0029] To sum up, the entire process of chamfering and grinding of NdFeB can be achieved by setting up a transmission structure, because the transmission structure drives the clamping plate 44 that clamps the NdFeB magnet through a rotatable shaft 40 and then lifts the magnet through the unloading block 48 to complete the entire process, and when the process is completed, it is only necessary to place the magnet between the clamping plates 44 without the need for other steps. Therefore, compared with the prior art, this solution has higher work efficiency and lower working pressure when used.

[0030] like Figure 1 , Figure 3 and Figure 4 As shown, a plurality of clamping blocks 41 are evenly arranged in a circular array on the outer wall of the rotating shaft 40, and each symmetrical spring groove 42 is provided with a spring block 43 and a clamping plate 44, the spring block 43 can slide in the spring groove 42, the clamping plate 44 is an arc-shaped plate, and the inner arcs of each symmetrical clamping plate 44 face each other, and the clamping groove 45 is opened in the inner arc of the clamping plate 44, and the clamping groove 45 is a stepped groove;

[0031] In specific use, when the magnet is placed between the clamping plates 44, the inner arc of the clamping plates 44 can adapt to the arc surface and size of the outer wall of the circular magnet. If a rectangular magnet is placed, the symmetrical wall of the clamping plates 44 can be stuck in the rectangular notch of the clamping groove 45.

[0032] In summary, by setting the clamping plate 44 and the clamping groove 45, not only can it adapt to NdFeB magnets of different sizes, but also can it adapt to NdFeB magnets of different shapes, because the inner arc surface of the clamping plate 44 and the special shape of the clamping groove 45 can adapt to different magnets, thereby improving the application range of the device.

[0033] Working principle: First, place the magnet to be chamfered between the symmetrical clamps 44 at the feed port 32. When the magnet is placed between the clamps 44, the spring on the wall of the spring block 43 can push the spring block 43 toward the other symmetrical spring block 43, and the spring block 43 can drive the clamps 44 to move at the same time so as to contact the two walls of the magnet. At this time, the power can be turned on. When the power is turned on, the bottom grinding roller 23 and the top grinding roller 25 will rotate at high speed, and the servo motor 21 will drive the rotating shaft 40 to drive the clamps 44 holding the magnet to move to the bottom of the top grinding roller 25. When the clamps 44 drive the clamps 44 and the magnet to move to the bottom of the top grinding roller 25, the top grinding roller 25 will grind the top of the magnet, and the bottom grinding roller 23 will grind the bottom of the magnet. The grinding is carried out. After the magnet is ground, the rotating shaft 40 will rotate again and drive the clamping plate 44 to rotate toward the base block 46. When the clamping plate 44 and the magnet move to the base block 46, the clamping plate 44 on one side will first contact the discharge block 48 and squeeze the discharge block 48 back into the top groove 47 along the inclined surface of the discharge block 48. When the clamping plate 44 passes over the top of the discharge block 48, the spring at the bottom of the discharge block 48 will quickly lift the discharge block 48 upward, thereby pushing the symmetrical magnets between the clamping plates 44 down from between the clamping plates 44. When the magnet is pushed down by the discharge block 48, it will pass through the rectangular grooves on the walls of the base plate 30 and the operating table 20 and fall into the discharge pipe 33 and slide out of the discharge pipe 33 along the slope at the bottom of the discharge pipe 33. At this point, the chamfering of the magnet is completed.

[0034] It is understood that the present invention is described by some embodiments, and those skilled in the art are aware that various changes or equivalent substitutions may be made to these features and embodiments without departing from the spirit and scope of the present invention. In addition, under the teachings of the present invention, these features and embodiments may be modified to adapt to specific circumstances and materials without departing from the spirit and scope of the present invention. Therefore, the present invention is not limited to the specific embodiments disclosed herein, and all embodiments falling within the scope of the claims of this application are within the scope of protection of the present invention.

Claims

1. An automatic chamfering device for NdFeB magnets, comprising an operating table (20), wherein a servo motor (21) is fixedly connected to the bottom center of the operating table (20), a rotating motor (22) is fixedly connected to the eccentric position of the bottom of the operating table (20), a bottom grinding roller (23) is rotatably connected to the top of the rotating motor (22), and the bottom grinding roller (23) can pass through the bottom of the operating table (20), an upper frame (24) is fixedly connected to the top side wall of the operating table (20), the upper frame (24) is in an inverted L shape, a top grinding roller (25) is fixedly connected below the upper frame (24), and the top grinding roller (25) is located vertically directly above the bottom grinding roller (23), It is characterized in that The top of the operating table (20) is provided with a transmission structure, which comprises a base plate (30), a side guard (31), a rotating shaft (40) and a clamping plate (44); the base plate (30) is fixedly connected to the top center of the operating table (20); the side guard (31) is fixedly connected to the top of the base plate (30); the rotating shaft (40) is rotatably connected to the top of the base plate (30); and the clamping plate (44) is movably connected to the wall surface of the rotating shaft (40); and the transmission structure can fix the neodymium iron boron magnet on the top of the operating table (20).

2. The automatic chamfering device for NdFeB magnets according to claim 1, It is characterized in that The base plate (30) is in the shape of a circular disc. The top of the bottom grinding roller (23) can pass through the base plate (30) and be flush with the top of the base plate (30). A rectangular groove is provided on the side of the base plate (30) opposite to the upper frame (24). The rectangular groove can penetrate the top of the operating table (20) and the wall of the base plate (30). The edge guard (31) is in the shape of a circular ring. The outer wall of the edge guard (31) is flush with the outer wall of the base plate (30). The bottom of the rotating shaft (40) can pass through the base plate (30) and the operating table (20) and be connected to the output end of the servo motor (21). The bottom of the bottom grinding roller (23) is connected to the output end of the rotating motor (22). The rotating shaft (40) is in the shape of a cylinder.

3. The automatic chamfering device for NdFeB magnets according to claim 1, It is characterized in that The transmission structure further comprises a feed port (32), a clamping block (41), an elastic groove (42), an elastic block (43) and a clamping groove (45); the feed port (32) is arranged on the front wall surface of the edge guard (31); the clamping block (41) is fixedly connected to the outer wall surface of the rotating shaft (40); the elastic groove (42) is symmetrically arranged on the front wall surface of the clamping block (41); the elastic block (43) is elastically connected in the elastic groove (42) by a spring; the clamping plate (44) is fixedly connected to the front wall surface of the elastic block (43); and the clamping groove (45) is arranged on the wall surface of the clamping plate (44).

4. The automatic chamfering device for NdFeB magnets according to claim 3, It is characterized in that A plurality of clamping blocks (41) are evenly arranged in a circular array on the outer wall surface of the rotating shaft (40), and each symmetrical spring groove (42) is provided with a spring block (43) and a clamping plate (44). The spring block (43) can slide in the spring groove (42), and the clamping plate (44) is an arc-shaped plate. The inner arcs of each symmetrical clamping plate (44) face each other, and the clamping groove (45) is opened on the inner arc of the clamping plate (44), and the clamping groove (45) is a stepped groove.

5. The automatic chamfering device for NdFeB magnets according to claim 3, It is characterized in that The transmission structure further comprises a discharge pipe (33), a base block (46), a top groove (47), a discharge block (48) and a limit block (49); the discharge pipe (33) is fixedly connected to the bottom of the rectangular groove of the operating table (20); the base block (46) is fixedly connected to the wall surface in the rectangular groove of the base plate (30); the top groove (47) is opened at the top of the base block (46); the bottom of the discharge block (48) is elastically connected in the top groove (47) by a spring; and the limit block (49) is symmetrically fixedly connected to the bottom of the discharge block (48).

6. The automatic chamfering device for NdFeB magnets according to claim 5, It is characterized in that The discharge pipe (33) is in the shape of a hollow box with an open top and front wall. The bottom of the discharge pipe (33) has a slope. The spring at the bottom of the discharge block (48) can push the discharge block (48) upward, and the limit block (49) can also slide in the top groove (47). The size of the symmetrical limit block (49) and the bottom of the discharge block (48) is larger than the size of the opening of the top groove (47).

7. The automatic chamfering device for NdFeB magnets according to claim 5, It is characterized in that The top of the top groove (47) is flush with the top of the base plate (30), the section of the discharge block (48) is a right-angle trapezoid, and the outer wall surface of the clamping plate (44) can contact the inclined surface of the wall surface of the discharge block (48).

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