Fixing tool for neodymium iron boron permanent magnet machining

Abstract

The utility model provides a fixing tool for neodymium iron boron permanent magnet machining. The fixing tool comprises a machining table, supporting legs arranged at the bottom of the machining table, a U-shaped mounting frame, a connecting shaft, a driving module, a fixing frame, a first telescopic push rod, a fixing clamping plate, a plurality of second telescopic push rods, a containing plate and a polishing module. According to the fixing tool for machining the neodymium-iron-boron permanent magnet, the permanent magnet can be flexibly fixed so as to assist polishing treatment of the two end faces of the permanent magnet, the permanent magnet can be automatically turned over, and it is not needed that in the machining process, after machining treatment of one end face is completed, the machining efficiency is greatly improved. When one end face of the permanent magnet is polished, clamping and fixing of the permanent magnet are relieved, the permanent magnet is turned over, then the permanent magnet is clamped and fixed again, and then the other end face of the permanent magnet is polished, so that the overall efficiency of polishing the two end faces of the permanent magnet is improved.

Description

Technical Field

[0001] The utility model belongs to the technical field of NdFeB permanent magnet processing, in particular to a fixing tool for NdFeB permanent magnet processing. Background Art

[0002] When processing cylindrical permanent magnets, it is necessary to grind the two end faces of the cylindrical permanent magnets. The existing fixed tooling for processing NdFeB permanent magnets, although it can meet the basic needs of clamping and fixing cylindrical permanent magnets and grinding the end faces, usually cannot automatically flip the cylindrical permanent magnets. It often requires the user to clamp the cylindrical permanent magnets first, then grind one of the end faces, then release the clamping mechanism, turn the cylindrical permanent magnets 180 degrees, clamp them again through the clamping mechanism, and grind the other end face of the permanent magnet. Not only is the operation very troublesome, time-consuming and labor-intensive, but it also affects the efficiency of grinding the end faces of the permanent magnets.

[0003] For example, the utility model with the announcement number CN 214559719 U discloses a fixing tool for processing NdFeB permanent magnets. In the technical solution of this patent, after fixing the cylindrical permanent magnet and completing the grinding process of one end face of the cylindrical permanent magnet, it is necessary to first release the fixation of the permanent magnet, then turn the permanent magnet over, and then clamp and fix the permanent magnet again before continuing to grind the other end face of the permanent magnet. It is not possible to clamp and fix the same permanent magnet only once, and automatically turn the permanent magnet over after completing the grinding process of one end face, and then continue to grind the other end face of the permanent magnet, and then release the fixation of the permanent magnet. Therefore, there is a defect of low grinding efficiency. Utility Model Content

[0004] In view of this, the utility model aims to overcome the deficiencies in the prior art and provides a fixing tool for processing NdFeB permanent magnets, which can not only flexibly fix the permanent magnets to assist in the grinding of the two end faces of the permanent magnets, but also automatically turn over the permanent magnets. There is no need to release the clamping and fixing of the permanent magnets, turn over the permanent magnets, clamp and fix the permanent magnets again, and then grind the other end face of the permanent magnets after completing the processing of one end face during the processing, thereby improving the overall efficiency of the grinding processing of the two end faces of the permanent magnets.

[0005] In order to solve the above technical problems, the technical solution adopted by the utility model is: a fixed tool for processing NdFeB permanent magnets, including a processing table, a supporting leg is arranged at the bottom of the processing table, a U-shaped mounting frame is arranged on the top of the processing table along the left and right directions, the left and right side ends of the mounting frame are respectively transversely penetrated and rotatably provided with connecting shafts, the left end of the mounting frame is also provided with a driving module for driving the corresponding connecting shafts, the inner ends of the two connecting shafts are jointly provided with a fixed frame, the front and rear side ends of the fixed frame are respectively laterally provided with multiple pairs of front-to-back symmetrical first telescopic push rods, the inner ends of the output shafts of each pair of first telescopic push rods are respectively provided with fixed splints with arc-shaped inner side walls, a plurality of second telescopic push rods are also arranged on the top of the processing table, the upper ends of the output shafts of the plurality of second telescopic push rods are jointly provided with a placement plate located below the placement frame, and a grinding module is also provided on the mounting frame.

[0006] As a further improvement of the utility model, bearings are respectively arranged on the outer walls of the left and right side ends of the mounting frame, the outer walls of the two connecting shafts are respectively connected to the inner rings of the corresponding bearings, and the two vertical plates are respectively provided with through holes adapted to the corresponding connecting shafts.

[0007] As a further improvement of the utility model, the drive module includes a drive motor laterally arranged at the left end of the mounting frame, a driving gear is arranged on the output shaft of the drive motor, and a driven gear meshing with the driving gear is arranged on the left connecting shaft.

[0008] As a further improvement of the utility model, the placement plate is further provided with a plurality of material discharge guiding grooves respectively matched with the outer rings of the permanent magnets, and the plurality of material discharge guiding grooves are respectively arranged between each pair of first telescopic push rods.

[0009] As a further improvement of the utility model, the bottom of the placement plate is provided with fixing cylinders which are respectively clamped and fixed with the output shafts of multiple second telescopic push rods, and the multiple fixing cylinders are respectively provided with fixing bolts for threadedly fixing the output shafts of the corresponding second telescopic push rods, and the output shafts of the second telescopic push rods are respectively provided with threaded fixing holes which are compatible with the corresponding fixing bolts.

[0010] As a further improvement of the utility model, the grinding module includes multiple third telescopic push rods vertically arranged on the top of the mounting frame, the lower ends of the output shafts of the multiple telescopic push rods are commonly provided with a horizontal plate, the bottom of the horizontal plate is vertically provided with a grinding motor, and the upper and lower ends of the multiple grinding output shafts are respectively provided with grinding wheels.

[0011] As a further improvement of the utility model, an anti-slip pad is also provided at the bottom of the supporting leg.

[0012] As a further improvement of the utility model, the tops of the multiple grinding wheels are respectively provided with connecting tubes which are clamped and fixed with the output shafts of the corresponding grinding motors, the connecting tubes are provided with connecting bolts for threadedly fixing the output shafts of the grinding motors, and the output shafts of the grinding motors are provided with threaded connecting holes which are compatible with the connecting bolts.

[0013] Compared with the prior art, the beneficial effects of the utility model are as follows:

[0014] Firstly, through the material discharge guide groove, the user can quickly and efficiently place multiple permanent magnets to be ground on the placement plate and at the position corresponding to each pair of fixed clamps, thereby improving the efficiency of discharging multiple permanent magnets and further improving the efficiency of grinding the end faces of the permanent magnets.

[0015] Secondly, the user only needs to place multiple permanent magnets whose two end faces are to be polished on the placement plate in sequence and at the positions corresponding to the corresponding fixed clamps, and then the placement plate can be moved upward by the second telescopic push rod, so that the multiple permanent magnets are moved between the corresponding fixed clamps, and then the multiple permanent magnets can be clamped and fixed in the front and back directions by the corresponding fixed clamps through multiple pairs of first telescopic push rods, and then the placement plate can be used to support and fix the permanent magnets again through the second telescopic push rod; the polishing motor can be started, and the multiple polishing wheels can be moved downward by the third telescopic push rod, so as to polish the upper end faces of the multiple permanent magnets; then the multiple polishing wheels can be moved downward by the third telescopic push rod, so as to polish the upper end faces of the multiple permanent magnets; After resetting upward, the placement plate can be moved downward by the second telescopic push rod to release the support for the multiple permanent magnets. After that, the two connecting shafts and the fixed frame can be rotated 180 degrees by the cooperation of the driving motor, the active gear and the driven gear, so that the other end faces of the multiple permanent magnets face upward. Then, the multiple grinding wheels can be moved downward again by the third gear, so as to grind the other end faces of the multiple permanent magnets. After that, it is only necessary to release the clamping fixation of the permanent magnets by the first telescopic push rod, and move the placement plate downward by the second telescopic push rod, so that the multiple processed permanent magnets can be moved downward through the fixed frame, and then the multiple permanent magnets can be removed from the placement plate.

[0016] Thirdly, it is only necessary to clamp and fix the fixed cylinder with the output shaft of the second telescopic push rod, and then pass the fixing bolt through the side wall of the fixed cylinder and screw it into the threaded fixing hole to achieve flexible fixation of the output shaft of the second telescopic push rod and the placement plate, so that the user can replace the discharge guide groove by replacing the placement plate, so that the guide groove on the placement plate can meet the requirements of discharge guidance for the cylindrical permanent magnet to be processed.

[0017] Fourthly, the anti-slip pad can prevent the device from easily shifting during operation. BRIEF DESCRIPTION OF THE DRAWINGS

[0018] The utility model is further described in detail below in conjunction with the accompanying drawings and specific implementation methods.

[0019] Figure 1 It is a structural schematic diagram of the utility model;

[0020] Figure 2 It is a structural schematic diagram of the processing table, the mounting frame, the second telescopic push rod, the placement plate, the bearing, the through hole, the material discharge guide groove, the fixing cylinder, and the fixing bolt of the utility model;

[0021] Figure 3 It is a structural schematic diagram of the fixed frame, the first telescopic push rod and the fixed clamping plate of the utility model;

[0022] Figure 4 It is a structural schematic diagram of the horizontal plate, grinding motor, grinding wheel, connecting tube and connecting bolts of the utility model.

[0023] In the figure: 101, processing table; 102, supporting leg; 103, mounting frame; 104, connecting shaft; 105, fixing frame; 106, first telescopic push rod; 107, fixing clamp; 108, second telescopic push rod; 109, placing plate; 110, bearing; 111, through hole; 112, anti-skid pad; 201, driving motor; 202, driving gear; 203, driven gear; 301, material discharge guide groove; 302, fixing cylinder; 303, fixing bolt; 401, third telescopic push rod; 402, cross plate; 403, grinding motor; 404, grinding wheel; 405, connecting cylinder; 406, connecting bolt. DETAILED DESCRIPTION

[0024] In order to better understand the present invention, the content of the present invention is further clearly described below in conjunction with the embodiments, but the protection content of the present invention is not limited to the following embodiments. In the following description, a large number of specific details are given in order to provide a more thorough understanding of the present invention. However, it is obvious to those skilled in the art that the present invention can be implemented without one or more of these details.

[0025] like Figure 1 , 3As shown, a fixed tool for processing NdFeB permanent magnets comprises a processing table 101, a supporting leg 102 is arranged at the bottom of the processing table 101, a U-shaped mounting frame 103 is arranged on the top of the processing table 101 along the left and right directions, the left and right side ends of the mounting frame 103 are respectively penetrated horizontally and rotatably provided with a connecting shaft 104, the left end of the mounting frame 103 is also provided with a driving module for driving the corresponding connecting shaft 104, the inner ends of the two connecting shafts 104 are jointly provided with a fixed frame 105, the front and rear side ends of the fixed frame 105 are respectively laterally provided with multiple pairs of front-to-back symmetrical first telescopic push rods 106, the inner ends of the output shafts of each pair of first telescopic push rods 106 are respectively provided with a fixed clamping plate 107 with an arc-shaped inner wall, a plurality of second telescopic push rods 108 are also arranged on the top of the processing table 101, the upper ends of the output shafts of the plurality of second telescopic push rods 108 are jointly provided with a placement plate 109 located below the placement frame, and a grinding module is also provided on the mounting frame 103.

[0026] like Figure 1 , 2 As shown, bearings 110 are respectively provided on the outer walls of the left and right side ends of the mounting frame 103, the outer walls of the two connecting shafts 104 are respectively connected to the inner rings of the corresponding bearings 110, and through holes 111 adapted to the corresponding connecting shafts 104 are respectively provided on the two vertical plates.

[0027] like Figure 1 As shown, the drive module includes a drive motor 201 disposed laterally at the left end of the mounting frame 103, a driving gear 202 is disposed on the output shaft of the drive motor 201, and a driven gear 203 meshing with the driving gear 202 is disposed on the left connecting shaft 104. The drive motor 201 is a servo reduction motor.

[0028] like Figure 2 As shown, the placement plate 109 is further provided with a plurality of material discharge guiding grooves 301 respectively matched with the outer rings of the permanent magnets, and the plurality of material discharge guiding grooves 301 are respectively arranged between each pair of first telescopic push rods 106 .

[0029] like Figure 1 , 2As shown, the bottom of the placement plate 109 is provided with a fixing cylinder 302 that is respectively clamped and fixed with the output shafts of the plurality of second telescopic push rods 108, and the plurality of fixing cylinders 302 are respectively provided with fixing bolts 303 for screwing and fixing the output shafts of the corresponding second telescopic push rods 108, and the output shafts of the second telescopic push rods 108 are respectively provided with threaded fixing holes that match the corresponding fixing bolts 303. The output shaft of the second telescopic push rod 108 can be flexibly fixed to the placement plate 109 by only clamping and fixing the fixing cylinder 302 with the output shaft of the second telescopic push rod 108, and then passing the fixing bolt 303 through the side wall of the fixing cylinder 302 and screwing and fixing it with the threaded fixing hole, so that the user can replace the material discharge guide groove 301 by replacing the placement plate 109, so that the guide groove on the placement plate 109 meets the demand for material discharge guidance of the cylindrical permanent magnet to be processed.

[0030] like Figure 1 , 4 As shown, the grinding module includes a plurality of third telescopic push rods 401 vertically arranged on the top of the mounting frame 103, a cross plate 402 is commonly arranged at the lower ends of the output shafts of the plurality of telescopic push rods, a grinding motor 403 is vertically arranged at the bottom of the cross plate 402, and a grinding wheel 404 is respectively arranged at the upper and lower ends of the plurality of grinding output shafts.

[0031] The user can quickly and efficiently place multiple permanent magnets to be ground on the placement plate 109 and at the position corresponding to each pair of fixed clamps 107 by clamping and fixing the lower end of the permanent magnet with the discharge guide groove 301, thereby improving the efficiency of discharging multiple permanent magnets and further improving the efficiency of grinding the end faces of the permanent magnets.

[0032] Afterwards, the output shafts of the multiple second telescopic push rods 108 can be extended downward by a certain length, so that the placement plate 109 moves upward, thereby moving the multiple permanent magnets between the corresponding fixed clamps 107, and then the output shafts of the multiple pairs of first telescopic push rods 106 can be extended by a certain length, so that each corresponding pair of fixed clamps 107 clamps and fixes the multiple permanent magnets from the front-to-back direction, and then the grinding motor 403 can be started, and the output shaft of the third telescopic push rod 401 can be extended downward by a certain length, so that the multiple grinding wheels 404 move downward, so that the upper end surfaces of the multiple permanent magnets are ground by the multiple grinding wheels 404.

[0033] Afterwards, the output shafts of the multiple third telescopic push rods 401 can be synchronously shortened upward by a certain length, so that the multiple grinding wheels 404 are reset upward, and then the output shafts of the multiple second telescopic push rods 108 can be shortened downward by a certain length, so that the placement plate 109 moves downward and the support for the multiple permanent magnets is released. Then, the two connecting shafts 104 and the fixed frame 105 can be rotated 180 degrees through the cooperation of the driving motor 201, the active gear 202, and the driven gear 203, so that the other end faces of the multiple permanent magnets face upward, and then the output shafts of the multiple second telescopic push rods 108 can be extended upward by a certain length, so that the placement plate 109 moves upward and the multiple permanent magnets are supported again; then the output shafts of the multiple first telescopic push rods 106 can be shortened by a certain length, so that the fixed clamping plate 107 releases the clamping fixation of the permanent magnet, and then the multiple grinding wheels 404 can be moved downward again through the third, so as to grind the other end faces of the multiple permanent magnets.

[0034] Then, the output shafts of the multiple second telescopic push rods 108 can be shortened downward by a certain length, so that the placement plate 109 can be moved downward, and the multiple processed permanent magnets can be moved downward through the fixed frame 105, and then the multiple permanent magnets can be removed from the placement plate 109.

[0035] According to another embodiment of the present invention, Figure 1 As shown, the bottom of the support leg 102 is also provided with an anti-skid pad 112. The anti-skid pad 112 can prevent the device from easily deviating during operation.

[0036] According to another embodiment of the present invention, Figure 4 As shown, the tops of the multiple grinding wheels 404 are also provided with connecting tubes 405 that are fixedly connected to the output shafts of the corresponding grinding motors 403, and the connecting tubes 405 are provided with connecting bolts 406 for screwing and fixing the output shafts of the grinding motors 403, and the output shafts of the grinding motors 403 are provided with threaded connecting holes that match the connecting bolts 406. The grinding wheels 404 can be flexibly fixed to the output shafts of the grinding motors 403 by screwing and fixing the output shafts of the grinding motors 403, and the users can also conveniently replace the grinding wheels 404 that are severely worn or whose sizes do not meet the requirements. The above is a preferred embodiment of the utility model. It should be pointed out that for ordinary technicians in this technical field, without departing from the principle of the utility model, several improvements and modifications can be made, and these improvements and modifications should also be regarded as the protection scope of the utility model.

Claims

1. A fixed tool for processing NdFeB permanent magnets, comprising a processing table (101), the bottom of the processing table (101) is provided with support legs (102), characterized in that: A U-shaped mounting frame (103) is arranged on the top of the processing table (101) along the left and right directions. The left and right side ends of the mounting frame (103) are respectively penetrated horizontally and rotatably provided with connecting shafts (104). The left end of the mounting frame (103) is also provided with a driving module for driving the corresponding connecting shaft (104). The inner ends of the two connecting shafts (104) are jointly provided with a fixing frame (105). The front and rear side ends of the fixing frame (105) are respectively laterally provided with multiple pairs of front-to-back symmetrical first telescopic push rods (106). The inner ends of the output shafts of each pair of first telescopic push rods (106) are respectively provided with a fixing clamping plate (107) with an arc-shaped inner wall. A plurality of second telescopic push rods (108) are also arranged on the top of the processing table (101). The upper ends of the output shafts of the plurality of second telescopic push rods (108) are jointly provided with a placement plate (109) located below the placement frame. A polishing module is also arranged on the mounting frame (103).

2. The fixing fixture for processing NdFeB permanent magnets according to claim 1, characterized in that: Bearings (110) are respectively arranged on the outer side walls of the left and right side ends of the mounting frame (103), the outer side walls of the two connecting shafts (104) are respectively connected to the inner rings of the corresponding bearings (110), and the two vertical plates are respectively provided with through holes (111) adapted to the corresponding connecting shafts (104).

3. The fixing fixture for processing NdFeB permanent magnets according to claim 2, characterized in that: The driving module comprises a driving motor (201) arranged transversely at the left end of the mounting frame (103); a driving gear (202) is arranged on the output shaft of the driving motor (201); and a driven gear (203) meshing with the driving gear (202) is arranged on the left connecting shaft (104).

4. The fixing fixture for processing NdFeB permanent magnets according to claim 3, characterized in that: The placement plate (109) is also provided with a plurality of material discharge guiding grooves (301) respectively matched with the outer ring of the permanent magnet, and the plurality of material discharge guiding grooves (301) are respectively arranged between each pair of first telescopic push rods (106).

5. The fixing fixture for processing NdFeB permanent magnets according to claim 4, characterized in that: The bottom of the placement plate (109) is provided with a fixing cylinder (302) which is respectively clamped and fixed to the output shafts of the plurality of second telescopic push rods (108); the plurality of fixing cylinders (302) are respectively provided with fixing bolts (303) for threadedly fixing the output shafts of the corresponding second telescopic push rods (108); the output shafts of the second telescopic push rods (108) are respectively provided with threaded fixing holes which are compatible with the corresponding fixing bolts (303).

6. The fixing fixture for processing NdFeB permanent magnets according to claim 5, characterized in that: The bottom of the support leg (102) is also provided with an anti-slip pad (112).

7. The fixture for processing NdFeB permanent magnets according to any one of claims 1 to 6, characterized in that: The grinding module comprises a plurality of third telescopic push rods (401) vertically arranged on the top of the mounting frame (103), a cross plate (402) being commonly arranged at the lower ends of the output shafts of the plurality of telescopic push rods, a grinding motor (403) being vertically arranged at the bottom of the cross plate (402), and a grinding wheel (404) being respectively arranged at the upper and lower ends of the plurality of grinding output shafts.

8. The fixing fixture for processing NdFeB permanent magnets according to claim 7, characterized in that: The tops of the plurality of grinding wheels (404) are also respectively provided with connecting tubes (405) which are clamped and fixed to the output shafts of the corresponding grinding motors (403); the connecting tubes (405) are provided with connecting bolts (406) which are used to threadably fix the output shafts of the grinding motors (403); and the output shafts of the grinding motors (403) are provided with threaded connecting holes which are compatible with the connecting bolts (406).

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