Multi-station variable-angle chamfering machine for neodymium-iron-boron magnet machining

Abstract

The utility model relates to the technical field of neodymium-iron-boron magnet machining, in particular to a multi-station variable-angle chamfering machine for neodymium-iron-boron magnet machining, which comprises a bottom frame, a processing assembly used for performing multi-station chamfering processing on neodymium-iron-boron magnets is arranged in the bottom frame, and the processing assembly comprises a conveying groove arranged at the top of the bottom frame. A conveying groove is formed in the bottom frame, a mounting frame is arranged in the conveying groove, an electromagnet and a clamping plate are arranged outside the mounting frame, a plurality of supporting frames are arranged at the top of the bottom frame, a plurality of hole grooves are formed in the inner wall of the conveying groove, magnetic blocks and a plurality of top blocks are arranged in the hole grooves, and cavities are formed in the supporting frames; and a connecting rod and a spring are arranged in the cavity. According to the chamfering device, a workpiece is conveyed to pass through a plurality of stations to be subjected to chamfering treatment, the chamfering treatment angle is adjusted through the electromagnet and the connecting rod mechanism, chamfering treatment of various angles can be achieved in cooperation with intensity adjustment of the electromagnet, and the angle adjusting range of chamfering treatment is widened.

Description

Technical Field

[0001] The utility model relates to the technical field of NdFeB magnet processing, in particular to a multi-station variable-angle chamfering machine for processing NdFeB magnets. Background Art

[0002] Neodymium iron boron magnets are a common magnetic material characterized by high strength, low coercivity, high thermal stability, and excellent mechanical properties. Due to their excellent magnetic properties, they are widely used in magnetic components of various devices and systems, such as speakers, motors, disk drives, and magnetic card readers. Chamfering of neodymium iron boron magnets involves the process of reducing the angles of the original right or sharp angles of the magnets to obtuse angles through a special process.

[0003] However, in the current prior art, when chamfering NdFeB magnets, in order to ensure the uniformity of the chamfer, the bracket of the chamfering mechanism can generally only move slightly, resulting in a limited angle of chamfering of the NdFeB magnets and inability to perform chamfering at a larger angle. Utility Model Content

[0004] The purpose of the utility model is to provide a multi-station variable-angle chamfering machine for processing NdFeB magnets, so as to solve the problems raised in the above background technology.

[0005] To achieve the above objectives, the present invention provides the following technical solutions:

[0006] A multi-station variable-angle chamfering machine for processing NdFeB magnets comprises a base frame, wherein a processing assembly for performing multi-station chamfering on NdFeB magnets is arranged inside the base frame, wherein the processing assembly comprises a conveying trough arranged at the top of the base frame, a mounting frame is arranged inside the conveying trough, an electromagnet and a clamping plate are arranged outside the mounting frame, a plurality of support frames are arranged on the top of the base frame, a plurality of hole slots are arranged on the inner wall of the conveying trough, a plurality of the hole slots are each provided with a magnetic block and a plurality of top blocks, a plurality of the support frames are each provided with a cavity, and a connecting rod and a spring are arranged inside the cavity.

[0007] As a preferred solution of the present invention, a connecting frame is provided on the outside of each of the supporting frames, a telescopic rod is provided on the inside of the connecting frame, and a grinding wheel is provided on one end of the telescopic rod away from the connecting frame.

[0008] As a preferred solution of the present invention, the mounting bracket is located in the conveying trough and is slidably connected to the inner wall of the conveying trough through a slide rail. The electromagnet is mounted on the outside of the mounting bracket and can be magnetically connected to the magnetic block. The multiple clamps are all slidably connected to the top of the mounting bracket through a slide rail.

[0009] As a preferred solution of the present invention, the two ends of the hole groove are respectively connected to the conveying groove and the cavity inside the support frame, the magnetic block is located in the hole groove and is slidingly connected to the inner wall of the hole groove through a slide rail, and the multiple top blocks are rotationally connected through a fixed axis and are rotationally connected to the magnetic block.

[0010] As a preferred solution of the present invention, the top block extends into the cavity away from one end of the magnetic block and abuts against the connecting rod. One end of the connecting rod is located in the cavity and is slidingly connected to the inner wall of the cavity through a slide rail, and the other end extends to the outside and is rotatably connected to the inner wall of the connecting frame through a fixed shaft. Both ends of the spring are connected to the inner wall of the cavity and the outside of the connecting rod by welding.

[0011] As a preferred solution of the present invention, one end of the connecting frame is located in the supporting frame and is rotatably connected to the supporting frame through a connecting shaft, one end of the telescopic rod is located in the connecting frame and is slidably connected to the connecting frame, and the grinding wheel sleeve is arranged on the outside of the telescopic rod and is rotatably connected to the telescopic rod through a bearing.

[0012] Compared with the prior art, the beneficial effects of the present invention are: in response to the problems raised in the background technology, the present application adopts a processing component, which clamps and fixes the NdFeB magnet workpiece through a mounting frame, and drives it to be transported in a conveying trough through multiple processing stations to perform chamfering on multiple corners of the workpiece; when the mounting frame passes through the processing station, the electromagnet repels the magnetic block below the station and cooperates with the connecting rod structure to drive the grinding wheel to rotate close to the workpiece to perform chamfering on the workpiece, and the magnetic strength of the electromagnet is changed by electric control to adjust the angle of the grinding wheel, so that the angle of the chamfering can be adjusted, thereby realizing chamfering at multiple angles.

[0013] The utility model realizes the chamfering of workpieces by conveying them through multiple workstations, and adjusts the angle of the chamfering through an electromagnet and a connecting rod mechanism. Combined with the strength adjustment of the electromagnet, chamfering at various angles can be achieved, thereby improving the angle adjustment range of the chamfering. BRIEF DESCRIPTION OF THE DRAWINGS

[0014] Figure 1 This is a three-dimensional diagram of the overall structure of the utility model;

[0015] Figure 2 This is the appearance structure diagram of the support frame of the utility model;

[0016] Figure 3 This is an internal cross-sectional view of the support frame of the utility model.

[0017] In the figure: 1. Base frame; 2. Conveying trough; 3. Mounting frame; 301. Electromagnet; 302. Clamping plate; 4. Support frame; 5. Connecting frame; 501. Telescopic rod; 502. Grinding wheel; 6. Hole slot; 7. Magnetic block; 701. Top block; 8. Cavity; 801. Connecting rod; 802. Spring. DETAILED DESCRIPTION

[0018] The technical solutions in the embodiments of the present invention will be clearly and completely described below in conjunction with the embodiments of the present invention.

[0019] Example

[0020] See also Figure 1-3The utility model provides a technical solution: a multi-station variable angle chamfering machine for processing NdFeB magnets, comprising a base frame 1, wherein the base frame 1 is provided with a processing component for performing multi-station chamfering on NdFeB magnets, and the processing component comprises a conveying trough 2 arranged on the top of the base frame 1, which is used to position the conveying angle during the processing of NdFeB magnets, so that multiple edges of the workpiece can be processed separately through multiple stations, and the chamfers of multiple corners can be adjusted separately. A mounting frame 3 is provided in the conveying trough 2 for placing the NdFeB magnet workpiece The mounting frame 3 is provided with an electromagnet 301 and a clamping plate 302 on the outside. The clamping plate 302 is distributed in an annular manner on the top of the mounting frame 3 and can clamp the workpiece. The top of the base frame 1 is provided with multiple support frames 4. The inner wall of the conveying trough 2 is provided with multiple hole grooves 6. The multiple hole grooves 6 are each provided with a magnetic block 7 and a plurality of top blocks 701. The position of the hole groove 6 corresponds to the installation point of the workstation, and when the mounting frame 3 is transported through the workstation, the external electromagnet 301 and the magnetic block 7 in the hole groove 6 are magnetically repelled, thereby driving the magnetic block 7 and the top block 701 to slide and close in the hole groove 6. The connecting rod 801 is pushed out of the cavity 8 and the connecting rod 801 is extended. When the connecting rod 801 is extended, the connecting frame 5 is driven to rotate in the supporting frame 4 to drive the grinding wheel 502 close to the workpiece. (The electromagnet 301 can control the magnitude and direction of the current through the PLC controller to control the intensity and direction of the magnetic field generated by it, thereby realizing the control of the magnetic pole. By controlling the intensity of the magnetic pole, the distance between the magnetic block 7 and the top block 701 can be contracted, and the angle at which the connecting frame 5 drives the grinding wheel 502 to rotate can be changed.) A cavity 8 is provided, and a connecting rod 801 and a spring 802 are provided inside the cavity 8. The connecting rod 801 is used to connect with the connecting frame 5 and make it linked, and the spring 802 is used to support the connecting rod 801 and drive it to retract and reset. A connecting frame 5 is provided on the outside of multiple support frames 4, and a telescopic rod 501 is provided inside the connecting frame 5. The telescopic rod 501 can drive the grinding wheel 502 to retract and change the distance from the workpiece when the connecting frame 5 approaches the workpiece. A grinding wheel 502 is provided on the end of the telescopic rod 501 away from the connecting frame 5 for chamfering the edges and corners of the workpiece.

[0021] In this embodiment, all electrical components are controlled by conventional controllers.

[0022] For example, please refer to Figure 1-3, the mounting bracket 3 is located in the conveying trough 2 and is slidably connected to the inner wall of the conveying trough 2 through a slide rail. The electromagnet 301 is sleeved on the outside of the mounting bracket 3 and can be magnetically connected to the magnetic block 7. The multiple clamps 302 are slidably connected to the top of the mounting bracket 3 through the slide rail. The two ends of the hole groove 6 are respectively connected to the conveying trough 2 and the cavity 8 inside the support frame 4. The magnetic block 7 is located in the hole groove 6 and is slidably connected to the inner wall of the hole groove 6 through the slide rail. The multiple top blocks 701 are rotatably connected by a fixed axis and are rotatably connected to the magnetic block 7. The top block 701 extends away from one end of the magnetic block 7 to the cavity 8 , and abuts against the connecting rod 801. One end of the connecting rod 801 is located in the cavity 8 and is slidably connected to the inner wall of the cavity 8 through a slide rail. The other end extends to the outside and is rotatably connected to the inner wall of the connecting frame 5 through a fixed shaft. Both ends of the spring 802 are connected to the inner wall of the cavity 8 and the outside of the connecting rod 801 by welding. One end of the connecting frame 5 is located in the support frame 4 and is rotatably connected to the support frame 4 through a connecting shaft. One end of the telescopic rod 501 is located in the connecting frame 5 and is slidably connected to the inside of the connecting frame 5. The grinding wheel 502 is sleeved on the outside of the telescopic rod 501 and is rotatably connected to the telescopic rod 501 through a bearing. When in use, first place the NdFeB magnet workpiece on the mounting frame 3 and fix it by the clamping plate 302, then control the mounting frame 3 to transport and move in the conveying trough 2 through the PLC controller, and drive the workpiece through the support frame 4. When passing through the work station, the external electromagnet 301 and the magnetic block 7 in the hole groove 6 magnetically repel each other, which can push the magnetic block 7 and the top block 701 to slide and shrink, and make the top block 701 abut against the connecting rod 801, and push the connecting rod 801 out of the cavity 8. When connected to the connecting frame 5 through the connecting rod 801, the connecting frame 5 is driven to rotate in the support frame 4 so that the grinding wheel 502 approaches the workpiece, and the telescopic rod 501 is controlled to be extended and retracted by the PLC controller so that the grinding wheel 502 abuts against the workpiece for chamfering.

[0023] The workflow of the present invention is as follows: when in use, the NdFeB magnet workpiece is first placed on the mounting frame 3 and fixed by the clamping plate 302. Then, the mounting frame 3 is controlled by the PLC controller to transport and move in the conveying trough 2, and the workpiece is driven through the support frame 4. When passing through the workstation, the external electromagnet 301 and the magnetic block 7 in the hole slot 6 are magnetically repelled, which can push the magnetic block 7 and the top block 701 to slide and shrink, and make the top block 701 abut against the connecting rod 801, pushing the connecting rod 801 out of the cavity 8. When the connection is connected to the connecting frame 5 through the connecting rod 801, the connecting frame 5 is driven to rotate in the support frame 4 so that the grinding wheel 502 approaches the workpiece, and the telescopic rod 501 is controlled by the PLC controller to extend and retract so that the grinding wheel 502 abuts against the workpiece for chamfering. The present invention realizes the chamfering of the workpiece when it is transported through multiple workstations, and the angle of the chamfering is adjusted by the electromagnet and the connecting rod mechanism. In combination with the electromagnet strength adjustment, the chamfering of various angles can be achieved, thereby improving the angle adjustment range of the chamfering.

[0024] Although embodiments of the present invention have been shown and described, it will be understood by those skilled in the art that various changes, modifications, substitutions and variations may be made to these embodiments without departing from the principles and spirit of the present invention, and the scope of the present invention is defined by the appended claims and their equivalents.

Claims

1. A multi-station variable angle chamfering machine for processing NdFeB magnets, comprising a base frame (1), wherein a processing assembly for performing multi-station chamfering processing on NdFeB magnets is provided inside the base frame (1), characterized in that: The processing component comprises a conveying trough (2) arranged on the top of a base frame (1), a mounting frame (3) is arranged in the conveying trough (2), an electromagnet (301) and a clamping plate (302) are arranged outside the mounting frame (3), a plurality of support frames (4) are arranged on the top of the base frame (1), a plurality of hole grooves (6) are arranged on the inner wall of the conveying trough (2), a plurality of the hole grooves (6) are each provided with a magnetic block (7) and a plurality of top blocks (701), a plurality of the support frames (4) are each provided with a cavity (8), and a connecting rod (801) and a spring (802) are each provided inside the cavity (8).

2. The multi-station variable angle chamfering machine for processing NdFeB magnets according to claim 1, characterized in that: A connecting frame (5) is provided outside each of the plurality of support frames (4), a telescopic rod (501) is provided inside the connecting frame (5), and a grinding wheel (502) is provided at one end of the telescopic rod (501) away from the connecting frame (5).

3. The multi-station variable angle chamfering machine for processing NdFeB magnets according to claim 1, characterized in that: The mounting frame (3) is located in the conveying trough (2) and is slidably connected to the inner wall of the conveying trough (2) via a slide rail. The electromagnet (301) is sleeved on the outside of the mounting frame (3) and can be magnetically connected to the magnetic block (7). The plurality of clamping plates (302) are all slidably connected to the top of the mounting frame (3) via the slide rail.

4. The multi-station variable angle chamfering machine for processing NdFeB magnets according to claim 1, characterized in that: The two ends of the hole groove (6) are respectively communicated with the conveying groove (2) and the cavity (8) inside the support frame (4); the magnetic block (7) is located in the hole groove (6) and is slidably connected to the inner wall of the hole groove (6) through a slide rail; the plurality of top blocks (701) are rotationally connected to each other through a fixed shaft and are rotationally connected to the magnetic block (7).

5. The multi-station variable angle chamfering machine for processing NdFeB magnets according to claim 2, characterized in that: The top block (701) extends into the cavity (8) away from one end of the magnetic block (7) and abuts against the connecting rod (801). One end of the connecting rod (801) is located in the cavity (8) and is slidably connected to the inner wall of the cavity (8) through a slide rail, and the other end extends to the outside and is rotatably connected to the inner wall of the connecting frame (5) through a fixed shaft. Both ends of the spring (802) are connected to the inner wall of the cavity (8) and the outside of the connecting rod (801) by welding.

6. The multi-station variable angle chamfering machine for processing NdFeB magnets according to claim 2, characterized in that: One end of the connecting frame (5) is located in the supporting frame (4) and is rotatably connected to the supporting frame (4) via a connecting shaft; one end of the telescopic rod (501) is located in the connecting frame (5) and is slidably connected to the connecting frame (5); the grinding wheel (502) is sleeved on the outside of the telescopic rod (501) and is rotatably connected to the telescopic rod (501) via a bearing.

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