Magnet grinding and chamfering device

Abstract

The utility model relates to the technical field of magnetic materials, and discloses a magnet grinding and chamfering device which comprises a machine frame, a first conveying belt and a second conveying belt which are connected are arranged on the machine frame, and the conveying direction of the first conveying belt is perpendicular to that of the second conveying belt. A first grinding wheel and a second grinding wheel are arranged on the two sides of the first conveying belt in a staggered mode, a first pressing plate is arranged on the other side of the first grinding wheel, a second pressing plate is arranged on the other side of the second grinding wheel, the first conveying belt is higher than the second conveying belt, and the first conveying belt and the second conveying belt are connected end to end. A third grinding wheel and a fourth grinding wheel are staggered on two sides of the second conveying belt; a high-temperature blowing pipe is arranged at the tail end of the second conveying belt. According to the device, accurate chamfering can be carried out without angle adjustment on a workpiece, and the machining precision is high.

Description

Technical Field

[0001] The utility model relates to the technical field of magnetic materials, in particular to a magnetic material processing device, specifically a magnet grinding and chamfering device. Background Art

[0002] In the production process of magnetic sheets, in order to avoid stress concentration, the upper and lower edges of the rectangular thin sheet workpiece are required to be chamfered, that is, all 8 edges need to be chamfered.

[0003] Existing grinding methods include chamfering machines and manual chamfering. During the chamfering process, existing machines can cause localized stress concentrations in thin sheets due to the grinding forces, leading to deformation or cracking. Furthermore, chamfering machines require multiple adjustments and manipulations of the workpiece, resulting in long processing cycles, relatively low production efficiency, and high equipment costs. Chamfering machines are expensive when processing large numbers of thin sheets and are less flexible than manual grinding. Manual chamfering, on the other hand, affects processing accuracy, negatively impacting product quality.

[0004] Patent CN 10236322 B discloses a plate chamfering machine. The main frame is equipped with a transmission mechanism for plate conveying, which is connected to a transmission drive mechanism located below the main frame. Above the transmission mechanism is a pressing frame equipped with several plate pressing rollers. A pressing and lifting drive mechanism is also provided on the pressing frame. A milling mechanism, comprising a tool holder and a milling blade located on the tool holder, is located between the pressing frame and the transmission mechanism. The milling mechanism is connected to the milling drive mechanism on the main frame. While this device offers precise chamfering, it can only process one edge at a time, not multiple edges simultaneously, and requires multiple adjustments to the workpiece. Summary of the Invention

[0005] The utility model provides a magnet grinding and chamfering device to solve a series of problems in which the existing chamfering machine needs to adjust and operate the workpiece multiple times when chamfering rectangular thin workpieces, the processing cycle is long, the production efficiency is relatively low, and manual grinding is flexible but the processing accuracy is insufficient.

[0006] The utility model is implemented by the following technical solutions:

[0007] A magnet grinding and chamfering device includes a frame, on which a first conveyor belt and a second conveyor belt are connected, and the transmission direction of the first conveyor belt is perpendicular to that of the second conveyor belt; a first grinding wheel and a second grinding wheel are staggered on both sides of the first conveyor belt, a first pressing plate is provided on the other side of the first grinding wheel, and a second pressing plate is provided on the other side of the second grinding wheel, the first conveyor belt is higher than the second conveyor belt, and the first conveyor belt and the second conveyor belt are connected end to end; a third grinding wheel and a fourth grinding wheel are staggered on both sides of the second conveyor belt; and a high-temperature blowing pipe is provided at the tail end of the second conveyor belt.

[0008] During implementation, it includes a frame, on which a first conveyor belt and a second conveyor belt are connected. The transmission directions of the first conveyor belt and the second conveyor belt are perpendicular to each other, and the transportation direction of the workpiece is switched to perform chamfering on different edges; a first grinding wheel and a second grinding wheel are staggered on both sides of the first conveyor belt, a first pressing plate is provided on the other side of the first grinding wheel, and a second pressing plate is provided on the other side of the second grinding wheel, a first pressing roller is provided at the front end of the first grinding wheel on the first conveyor belt, and a second pressing roller is provided on the first conveyor belt between the first grinding wheel and the second grinding wheel.

[0009] The first conveyor belt is higher than the second conveyor belt, and the first conveyor belt and the second conveyor belt are connected end to end. Specifically, the tail end of the first conveyor belt is connected to a guide rail, and the two tracks of the guide rail clamp the two ends of the workpiece. The tail end of the guide rail is located directly above the starting end of the second conveyor belt. The starting end of the second conveyor belt is provided with a pushing cylinder, and the cylinder body of the pushing cylinder is fixed on the frame.

[0010] The third grinding wheel and the fourth grinding wheel are staggered on both sides of the second conveyor belt. The structures of the first grinding wheel, the second grinding wheel, the third grinding wheel and the fourth grinding wheel are exactly the same, and the installation height relative to their respective conveyor belts is the same. The first grinding wheel, the second grinding wheel, the third grinding wheel and the fourth grinding wheel are each provided with two opposite frosting surfaces, the upper frosting surface is inclined at 45°, and the lower frosting surface is inclined at -45°; a high-temperature blow pipe is provided at the tail end of the second conveyor belt.

[0011] The workpiece from the vibrating feeder enters the first conveyor belt, passes through the first pressing roller to avoid overlapping of the workpiece and enters the chamfering device. The workpiece moves with the first conveyor belt, and the first grinding wheel chamfers the upper and lower edges on one side of the workpiece, and the other side of the workpiece passes under the first pressing plate to prevent the workpiece from flying out due to the force during the chamfering process. Similarly, after passing the second pressing roller, the second grinding wheel chamfers the upper and lower edges on the other side of the workpiece, that is, when passing the first grinding wheel, the side surface under the first pressing plate; the workpiece continues to move on the first conveyor belt and enters the guide rail. The guide rail supports the two sides of the workpiece after the chamfering process is completed, and the workpiece is pushed one by one at the end of the guide rail and falls to the starting end of the second conveyor belt. The workpiece entering the second conveyor belt is pushed forward by the piston rod of the pushing cylinder to adjust the position of the workpiece to avoid the workpiece from tilting and getting stuck on the second conveyor belt. Similarly, the third grinding wheel and the fourth grinding wheel on the second conveyor belt chamfer the four edges of the workpiece. After the processing is completed, the high-temperature blower blows the workpiece dry.

[0012] Compared with the prior art, this application has the following beneficial effects:

[0013] The utility model provides a magnet grinding and chamfering device, which can accurately chamfer the edges without adjusting the angle of the workpiece and has high processing accuracy.

[0014] The device has a simple structure and is easy to use. It can automatically and quickly grind and chamfer the upper and lower end faces of the magnet. It has a high degree of automation, high grinding and chamfering efficiency, good processed product quality, high production efficiency and low production cost. BRIEF DESCRIPTION OF THE DRAWINGS

[0015] Figure 1 A schematic diagram showing the assembly structure of the device.

[0016] In the figure: 1-first conveyor belt, 2-second conveyor belt, 3-frame, 4-guide rail, 5-pushing cylinder, 6-first grinding wheel, 7-second grinding wheel, 8-third grinding wheel, 9-fourth grinding wheel, 10-first pressing plate, 11-second pressing plate, 12-first pressing roller, 13-second pressing roller. DETAILED DESCRIPTION

[0017] The present invention will be described below with reference to specific embodiments.

[0018] A magnet grinding and chamfering device, such as Figure 1 As shown: a first conveyor belt 1 and a second conveyor belt 2 are connected on the frame 3, and the transmission directions of the first conveyor belt 1 and the second conveyor belt 2 are perpendicular. The transport direction of the workpiece is switched to achieve chamfering of different edges; in this embodiment, a rectangular thin workpiece of 18mm×12mm×2mm needs to be processed, and the edges with lengths of 18mm and 12mm need to be chamfered at 45°. A first grinding wheel 6 and a second grinding wheel 7 are staggered on both sides of the first conveyor belt 1. The position of the first grinding wheel 6 on the first conveyor belt 1 is located in front of the second grinding wheel 7. A first pressing plate 10 is provided on the other side of the first grinding wheel 6, and a second pressing plate 11 is provided on the other side of the second grinding wheel 7. During the grinding process, the workpiece is kept stable to prevent the workpiece from jumping up. A first pressing roller 12 is provided at the front end of the first grinding wheel 6 of the first conveyor belt 1, and a second pressing roller 13 is provided on the first conveyor belt 1 between the first grinding wheel 6 and the second grinding wheel 7. The first pressing roller 12 and the second pressing roller 13 have the same structure, including brackets arranged on both sides of the conveyor belt, and a roller is installed between the two brackets.

[0019] The first conveyor belt 1 is higher than the second conveyor belt 2, and the first conveyor belt 1 and the second conveyor belt 2 are connected end to end. Specifically, the tail end of the first conveyor belt 1 is connected to the guide rail 4, and the two tracks of the guide rail 4 clamp the two ends of the workpiece. The tail end of the guide rail 4 is located directly above the starting end of the second conveyor belt 2. The starting end of the second conveyor belt 2 is provided with a pushing cylinder 5, and the cylinder body of the pushing cylinder 5 is fixed on the frame 3. The end of the piston rod of the pushing cylinder is provided with a pushing plate that fits with the workpiece, which is used to push the workpiece straight to avoid jamming caused by tilting into the second conveyor belt 2.

[0020] The third grinding wheel 8 and the fourth grinding wheel 9 are staggered on both sides of the second conveyor belt 2. The structures of the first grinding wheel 6, the second grinding wheel 7, the third grinding wheel 8 and the fourth grinding wheel 9 are exactly the same, and the installation height relative to their respective conveyor belts is the same. The first grinding wheel 6, the second grinding wheel 7, the third grinding wheel 8 and the fourth grinding wheel 9 are each provided with two opposite frosted surfaces, that is, the opposite frosted surfaces are 90° apart, the frosted surface located above is inclined at 45°, and the frosted surface located below is inclined at -45°; a high-temperature blow pipe is provided at the tail end of the second conveyor belt 2 for drying moisture on the surface of the workpiece.

[0021] During use, the workpiece from the vibrating feeder enters the first conveyor belt 1, passes through the first pressing roller 12 to avoid overlapping of the workpieces and enters the chamfering device. The workpiece moves with the first conveyor belt 1, and the first grinding wheel 6 chamfers the upper and lower edges on one side of the workpiece. The other side of the workpiece passes under the first pressing plate 10 to avoid the workpiece flying out due to the force during the chamfering process. Similarly, after passing the second pressing roller 13, the second grinding wheel 7 chamfers the upper and lower edges on the other side of the workpiece, that is, when passing the first grinding wheel 6, the side surface below the first pressing plate 10, at this time, the four edges with a side length of 12 mm have all been chamfered. The edge processing is completed; the workpiece continues to move on the first conveyor belt 1 and enters the guide rail 4. The guide rail 4 supports the two sides of the workpiece after the chamfering processing is completed. The workpiece is pushed one by one at the end of the guide rail and falls to the starting end of the second conveyor belt 2. The workpiece entering the second conveyor belt 2 is pushed forward by the piston rod of the pushing cylinder 5 to adjust the position of the workpiece to avoid the workpiece from tilting and getting stuck on the second conveyor belt 2. Similarly, the third grinding wheel 8 and the fourth grinding wheel 9 on the second conveyor belt 2 chamfer the four edges of the workpiece. At this time, the four edges with a side length of 18 mm have all been chamfered, and the high-temperature blower pipe blows the workpiece dry.

[0022] The scope of protection claimed by the present invention is not limited to the above specific embodiments. For those skilled in the art, the present invention may have various deformations and changes. Any modifications, improvements and equivalent substitutions made within the concept and principle of the present invention should be included in the scope of protection of the present invention.

Claims

1. A magnet grinding and chamfering device, characterized in that: The invention comprises a frame (3), wherein a first conveyor belt (1) and a second conveyor belt (2) are connected to each other on the frame (3), and the transmission direction of the first conveyor belt (1) is perpendicular to that of the second conveyor belt (2); a first grinding wheel (6) and a second grinding wheel (7) are staggeredly arranged on both sides of the first conveyor belt (1), a first pressing plate (10) is arranged on the other side of the first grinding wheel (6), and a second pressing plate (11) is arranged on the other side of the second grinding wheel (7); the first conveyor belt (1) is higher than the second conveyor belt (2), and the first conveyor belt (1) and the second conveyor belt (2) are connected end to end; a third grinding wheel (8) and a fourth grinding wheel (9) are staggeredly arranged on both sides of the second conveyor belt (2); and a high-temperature blowing pipe is arranged at the tail end of the second conveyor belt (2).

2. A magnet grinding and chamfering device according to claim 1, characterized in that: The first conveyor belt (1) is provided with a first pressing roller (12) at the front end of the first grinding wheel (6), and a second pressing roller (13) is provided on the first conveyor belt (1) between the first grinding wheel (6) and the second grinding wheel (7).

3. The magnet grinding and chamfering device according to claim 1, characterized in that: The structures of the first grinding wheel (6), the second grinding wheel (7), the third grinding wheel (8), and the fourth grinding wheel (9) are completely identical.

4. A magnet grinding and chamfering device according to claim 3, characterized in that: The first grinding wheel (6), the second grinding wheel (7), the third grinding wheel (8), and the fourth grinding wheel (9) are each provided with two opposing grinding surfaces, the upper grinding surface being inclined at 45 degrees, and the lower grinding surface being inclined at -45 degrees.

5. A magnet grinding and chamfering device according to claim 4, characterized in that: The first grinding wheel (6), the second grinding wheel (7), the third grinding wheel (8), and the fourth grinding wheel (9) are installed at the same height relative to their respective conveyor belts.

6. The magnet grinding and chamfering device according to claim 1, characterized in that: The tail end of the first conveyor belt (1) is connected to a guide rail (4), the two tracks of the guide rail (4) clamp the two ends of the workpiece, and the tail end of the guide rail (4) is located directly above the starting end of the second conveyor belt (2).

7. A magnet grinding and chamfering device according to claim 6, characterized in that: A push cylinder (5) is provided at the starting end of the second conveyor belt (2), the cylinder body of the push cylinder (5) is fixed on the frame (3), and the end of the piston rod of the push cylinder (5) is provided with a push plate that fits the workpiece.

8. The magnet grinding and chamfering device according to claim 2, characterized in that: The first nip roller (12) and the second nip roller (13) have the same structure, comprising brackets arranged on both sides of the conveyor belt, with a roller installed between the two brackets.

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