Chamfering device for grinding rollers

Abstract

The utility model discloses a mechanical processing technical field's chamfering device for grinding roller, including base, be provided with rotary support mechanism on the base, and rotary support mechanism is used for supporting grinding roller, makes the axis of grinding roller horizontal arrangement along left and right direction, and grinding roller can rotate around its axis, and the end fixed setting of base near grinding roller is provided with grinding mechanism, and grinding mechanism is located grinding roller end face one side, is used for chamfering processing to grinding roller end face, and grinding mechanism includes mounting seat and angle grinder, and mounting seat fixed setting is in base, and be provided with fixed assembly on mounting seat, and fixed assembly is used for the mounting fixed of angle grinder, and mounting seat has the vertical setting of sliding slot, and the first screw rod vertical setting has in sliding slot, and the sliding block is screwed to the first screw rod, and the first screw rod can drive the up and down movement of sliding block, and sliding block is fixedly connected with fixed assembly.

Description

Technical Field

[0001] This utility model relates to the field of machining technology, and in particular to a chamfering device for grinding rollers. Background Technology

[0002] In the manufacturing process of grinding rollers for grinding mills, wire drawing is a crucial finishing process. Its purpose is to use specialized wire drawing tools to cut grinding teeth with specific shapes, angles, and arrangements on the roller surface so that the grinding roller can effectively grind materials in subsequent operations, which directly affects the efficiency of grinding production and product quality.

[0003] Before wire drawing begins, the end faces of the grinding rollers need to be chamfered. The main purpose is to prevent abnormal damage to the equipment and cutting tools. If the ends of the grinding rollers retain untreated sharp right-angle edges, when the wire drawing machine's cutting tools approach the roller surface at high speed or exit at the end of their cutting stroke, they are highly susceptible to violent collisions or scraping against these sharp edges. Such impacts can not only cause expensive wire drawing tools to chip, curl, or even break, significantly shortening their service life, but may also create stress concentration at the ends of the grinding rollers, leading to micro-cracks or notches, causing irreversible damage to the grinding rollers, ultimately affecting the safety of the wire drawing process and the quality of the finished product.

[0004] Chinese utility model patent CN211465787U discloses a chamfering device for a printing press rubber roller, including a support plate, a movable frame, an angle grinder, a mounting plate, a mounting screw, and mounting nuts. The movable frame is mounted on the support plate, the axis of the rubber roller is horizontal, the rubber roller is detachably mounted on the movable frame and rotatably connected to the movable frame, the mounting plate is fixed on the support plate, the angle grinder for chamfering the rubber roller is located on one side of the rubber roller, the end of the mounting screw near the angle grinder is rotatably connected to the angle grinder, the end of the mounting screw away from the angle grinder passes through the mounting plate, and mounting nuts are located on both sides of the mounting plate and cooperate with the mounting screw.

[0005] While the aforementioned patent eliminates the need for handheld angle grinders for chamfering, reducing the workload for workers, the angle grinder in this patent rotates around the mounting screw primarily to adjust the chamfering angle. It cannot significantly move the angle grinder radially along the rubber roller, making it difficult to chamfer rubber rollers of different diameters. Utility Model Content

[0006] To address the technical problem of difficulty in chamfering grinding rollers of different diameters in existing technologies, this invention provides a chamfering device for grinding rollers.

[0007] The technical solution adopted by this utility model to solve its technical problem is: A chamfering device for a grinding roller is provided, including a base, on which a rotating support mechanism is provided to support the grinding roller, so that the axis of the grinding roller is horizontally arranged in the left-right direction, and the grinding roller can rotate around its own axis. A grinding mechanism is fixedly arranged on the end of the base near the grinding roller. The grinding mechanism is located on one side of the end face of the grinding roller and is used to chamfer the end face of the grinding roller. The grinding mechanism includes a mounting base and an angle grinder. The mounting base is fixedly arranged on the base, and a fixing component is provided on the mounting base for mounting and fixing the angle grinder. The mounting base has a vertically arranged slide groove, and a first screw is vertically arranged in the slide groove. The first screw is threadedly sleeved with a slider, and the first screw can drive the slider to move up and down. The slider is fixedly connected to the fixing component.

[0008] Furthermore, a groove runs through the top of the mounting base, and a turntable is provided on the top of the mounting base, which is fixedly connected to the end of the first screw.

[0009] Furthermore, the rotating support mechanism includes at least two rotating wheels, which are rotatably mounted on the base. The rotation axes of the rotating wheels are all horizontally arranged in the left-right direction. The rotating wheels are used to support the grinding roller, so that the grinding roller can rotate around its own axis on the rotating wheels. The base is also provided with limiting components, which contact the left and right end faces of the grinding roller to restrict the left and right movement of the grinding roller.

[0010] Furthermore, the rotating support mechanism includes four rotating wheels distributed along the four corners of a rectangle, forming a support structure for supporting the grinding roller, with the circumferential side of the grinding roller in contact with the circumferential side of the rotating wheels.

[0011] Furthermore, the fixing component includes a mounting component, a rotating component, a positioning component, and a mating component. The mating component is fixedly connected to the slider, and the rotating component is rotatably connected to the mating component, allowing the rotating component to rotate around a horizontal axis in the front-back direction. The positioning component is used to position the rotation angle of the rotating component. The mounting component is fixedly mounted on the rotating component and can rotate with the rotating component. The angle grinder is fixedly mounted on the mounting component.

[0012] Furthermore, the rotating component is a second screw arranged horizontally in the front-to-back direction, and the mating component is a sleeve with a thread inside the sleeve that mates with the second screw. The second screw is threadedly engaged with the sleeve and has a first end and a second end. The first end of the second screw passes through the sleeve, and the second end of the second screw is fixedly connected to the mounting component. The positioning component is a nut, which is threadedly engaged with the first end of the second screw and abuts against the end of the sleeve to limit the rotation of the second screw in one direction and to limit the mounting component from rotating towards the grinding roller.

[0013] Furthermore, the mounting component is a semi-enclosed frame, and the angle grinder is set inside the semi-enclosed frame. The semi-enclosed frame includes a first edge and a second edge that are arranged opposite to each other. A first screw is provided on the first edge and a second screw is provided on the second edge. The angle grinder is provided with corresponding threaded holes, and both the first screw and the second screw are threadedly engaged with the threaded holes on the angle grinder.

[0014] Furthermore, both the first and second perimeters are perimeter panels, and the plane containing the first perimeter intersects the plane containing the second perimeter, such that the extension line of the tail of the first screw and the extension line of the tail of the second screw are either on opposite planes or intersect.

[0015] The beneficial effects of this utility model are: 1. The grinding mechanism of this utility model includes a mounting base and an angle grinder. The mounting base is fixedly mounted on a base, and a fixing component is provided on the mounting base for mounting and fixing the angle grinder. The mounting base has a vertically arranged slide groove, and a first screw is vertically arranged in the slide groove. A slider is threaded onto the first screw, and the first screw can drive the slider to move up and down. The slider is fixedly connected to the fixing component. By rotating the first screw, the slider moves up and down, thereby driving the fixing component and the angle grinder to move in the radial direction of the grinding roller. This allows for easy adjustment of the height of the angle grinder relative to the end face of the grinding roller, enabling the device to adapt to grinding rollers of different diameters. This greatly improves the applicability and processing flexibility of the equipment, and the mechanically controlled up and down movement also facilitates stable adjustment of the cutting depth.

[0016] 2. The rotating support mechanism of this utility model includes at least two rotating wheels with their rotation axes horizontally arranged in the left-right direction. Using rotating wheels as a support results in a simple, reliable, and low-cost structure. The small contact area between the rotating wheels and the circumferential surface of the cylindrical grinding roller reduces frictional resistance, allowing the grinding roller to easily rotate around its own axis, greatly facilitating adjustment of the processing position and making operation labor-saving and efficient. A limiting component is also provided on the base, contacting the left and right end faces of the grinding roller to restrict its left-right movement.

[0017] 3. The four rotating wheels are distributed along the four corners of the rectangle. This four-point support structure provides excellent stability and balance, reliably supporting the heavy grinding rollers and effectively preventing them from shaking or shifting during rotation, further ensuring the smoothness and precision of the chamfering process.

[0018] 4. The fixing assembly includes a mounting component that can rotate about a horizontal axis in the front-to-back direction, and a positioning component for positioning. This structure allows the mounting angle of the angle grinder to be adjustable, enabling the operator to precisely adjust the chamfer angle (e.g., 45°, 30°, etc.) according to process requirements, and reliably lock it using the positioning component, thereby producing chamfered bevels of different specifications, greatly enhancing the versatility and processing capabilities of the device.

[0019] 5. The rotating component is a second screw that mates with the sleeve thread, and the positioning component is a nut that mates with the second screw. Using the second screw and nut for transmission to achieve angle adjustment and locking is a simple, reliable, and low-cost mechanical solution. Fine-tuning of the angle can be achieved by rotating the second screw, with high adjustment accuracy; after tightening the nut, the self-locking characteristic of the threaded pair and the contact force with the end face ensure reliable angle locking, preventing angle changes due to vibration during processing.

[0020] 6. The mounting bracket is a semi-enclosed frame, secured to the angle grinder from both sides by first and second screws that engage with threaded holes on the frame. This semi-enclosed frame structure effectively encloses and supports the angle grinder, enhancing installation stability. The two-point screw fixing method ensures a secure connection, effectively resisting vibrations generated during grinding, preventing the angle grinder from loosening, and ensuring operational safety. The planes containing the first and second edges intersect, causing the extension lines of the first and second screws to intersect or be out of plane. This structure means that the two screws tighten the angle grinder from different directions. This design generates a combined locking force, which, compared to screws tightened from the same direction, more effectively prevents the angle grinder from loosening under vibration, enhancing the reliability of the fixation. Attached Figure Description

[0021] Figure 1 This is a schematic diagram of the chamfering device for grinding rollers according to this utility model; Figure 2 This is a front view of the chamfering device for grinding rollers according to this utility model; Figure 3 This is a top view of the chamfering device for grinding rollers according to this utility model; The markings in the diagram are as follows: 1-base, 2-mounting base, 3-slide groove, 4-slider, 5-turntable, 6-rotating wheel, 7-limiting component, 8-mounting component, 81-first perimeter, 82-second perimeter, 9-rotating component, 10-positioning component, 11-fitting component, 12-first screw, 13-second screw. Detailed Implementation

[0022] To make the objectives, technical solutions, and advantages of the embodiments of this application clearer, the present invention will be further described below with reference to the accompanying drawings.

[0023] First, it should be stated that the technical solutions of the embodiments of this application are clearly and completely described. The described embodiments are only some of the embodiments of this application, and not a limitation of this utility model. All other embodiments obtained by those skilled in the art based on the embodiments of this application without creative effort are within the scope of protection of this application.

[0024] In the description of this utility model, it should be understood that the terms "first", "second", "upper", "lower", "left", "right", "inner", "outer", "axial" or "radial" indicate the orientation or positional relationship based on the orientation or positional relationship shown in the drawings. They are only for the convenience of describing this utility model and are not intended to indicate or imply that the device or element referred to must have a specific orientation structure and operation. Therefore, they should not be construed as limitations on this utility model.

[0025] It should be noted that, in this utility model, unless otherwise explicitly specified and limited, the terms "connection" and "fixation," etc., should be interpreted broadly. For example, "fixation" can mean a fixed connection, a detachable connection, or an integral part; it can mean a mechanical connection or an electrical connection; it can mean a direct connection or an indirect connection through an intermediate medium; it can mean the internal communication of two components or the interaction between two components, unless otherwise explicitly limited. Those skilled in the art can understand the specific meaning of the above terms in this utility model according to the specific circumstances.

[0026] Reference Figures 1 to 3 As shown, this utility model provides a chamfering device for grinding rollers.

[0027] like Figures 1 to 3 As shown, in some embodiments, a chamfering device for a grinding roller is provided, including a base 1. A rotating support mechanism is provided on the base 1 to support the grinding roller (not shown), so that the axis of the grinding roller is horizontally arranged in the left-right direction, and the grinding roller can rotate around its own axis. A grinding mechanism is fixedly provided on the end of the base 1 near the grinding roller. The grinding mechanism is located on one side of the end face of the grinding roller and is used to chamfer the end face of the grinding roller. The grinding mechanism includes a mounting base 2 and an angle grinder. The mounting base 2 is fixedly arranged on the base 1 and a fixing component is provided on the mounting base 2. The fixing component is used to install and fix the angle grinder. The fixing component can be clamped, bolted or screwed, or snap-fitted. The mounting base 2 has a vertically arranged slide groove 3. A first screw (not shown) is vertically arranged in the slide groove 3. The first screw is threadedly sleeved with a slider 4. The first screw can drive the slider 4 to move up and down. The slider 4 is fixedly connected to the fixing component.

[0028] For the rotating support mechanism, an option is to provide a gripper and a rotating disk on the base 1. The gripper clamps one end of the grinding roller, and the gripper is mounted on the rotating disk, which can rotate around a horizontal axis in the left-right direction. This allows the grinding roller to be held and rotated. The specific implementation structure can refer to the three-jaw gripping mechanism in the existing lathe, which will not be described in detail here. Alternatively, a rotatable rotating wheel 6 can be provided on the base 1. For example, a support can be provided on the base 1, and the rotating wheel 6 can be rotatably connected to the support via a rotating shaft. Alternatively, a groove can be opened on the base 1, and the rotating wheel 6 can be installed in the groove via a rotating shaft. At least a part of the rotating wheel 6 protrudes from the upper surface of the base 1. With this configuration, the rotating wheel 6 can support the grinding roller, and the rotation of the grinding roller is unrestricted, allowing it to rotate around a horizontal axis in the left-right direction. Of course, there are other possible rotating support mechanisms, which will not be listed here. Mechanisms that can be implemented in the existing technology can be used.

[0029] The rotation of the grinding roller can be achieved by setting up a rotary motor to drive the grinding roller to rotate, or by manually pushing the grinding roller to rotate. Here, it is not required that the grinding roller has a very high speed. The purpose of rotation is to adjust the chamfer position of the grinding roller.

[0030] The grinding rollers are usually placed horizontally in the left-right direction. Of course, they can also be placed at an angle relative to the horizontal line. In this case, the corresponding grinding mechanism will be tilted accordingly. When the grinding rollers are placed horizontally, the processing and operation are safer, and the grinding rollers are prevented from slipping and injuring the operators. The tilting setting of the grinding rollers is also within the protection scope of this solution.

[0031] The grinding mechanism is usually fixed on the base 1. In this embodiment, an angle grinder is preferred. It can be detachably fixed on the base 1 with the help of the mounting seat 2, so as to chamfer the end face of the grinding roller. The grinding mechanism can also adopt existing technologies, such as electric grinders, pneumatic grinders, small milling power heads (precision units that integrate motors and chucks, which can be fixed on the device through the mounting seat 2 and processed using standard milling cutters or chamfering cutters), motors with grinding wheels, laser chamfering machines, and other existing technologies.

[0032] This embodiment allows for easy adjustment of the height of the angle grinder relative to the end face of the grinding roller, enabling the device to adapt to grinding rollers of different diameters. This greatly improves the applicability and processing flexibility of the equipment, and the vertical lifting also facilitates stable adjustment of the cutting depth. The first screw can be driven by a motor or manually. In manual drive mode, one end of the first screw can extend out of the top of the mounting base 2 to facilitate rotation of the first screw. Alternatively, an auxiliary structure can be provided that extends from the top of the mounting base 2 into the slide groove 3 and is fixedly connected to one end of the first screw.

[0033] Furthermore, the slide 3 extends through the top of the mounting base 2, and a turntable 5 is provided on the top of the mounting base 2. The turntable 5 is fixedly connected to the end of the first screw.

[0034] like Figures 1 to 3 As shown, in some embodiments, the rotating support mechanism includes at least two rotating wheels 6, which are rotatably mounted on the base 1. The rotation axes of the rotating wheels 6 are horizontally arranged in the left-right direction. The rotating wheels 6 support the grinding roller, allowing the grinding roller to rotate around its own axis on the rotating wheels 6. The base 1 is also provided with limiting members 7, which contact the left and right end faces of the grinding roller to restrict its left-right movement. If two rotating wheels 6 are provided, the axial dimension of the rotating wheels 6 should be relatively large to ensure that they can support the grinding roller. The two rotating wheels 6 are spaced apart, and the space between them is used to place the grinding roller. Preferably, the rotating support mechanism includes four rotating wheels 6, distributed along the four corners of a rectangle. The four rotating wheels 6 form a support structure for supporting the grinding roller, with the circumferential side of the grinding roller contacting the circumferential side of the rotating wheels 6. This four-point support structure provides excellent stability and balance, reliably supporting the heavy grinding roller and effectively preventing it from swaying or shifting during rotation, further ensuring the smoothness and precision of the chamfering process.

[0035] The limiting component 7 can be a limiting block, and its cross-section can be square, L-shaped, or circular. There are no special requirements here; it is only used to hold the grinding roller in place and prevent the grinding roller from shifting in the left and right directions, thereby affecting the chamfering quality. Rollers or balls can be set on the limiting block to contact the end face of the grinding roller, thereby reducing the friction between the grinding roller and the limiting component 7.

[0036] like Figures 1 to 3As shown, in some embodiments, to facilitate adjustment of the chamfer angle and allow the angle grinder to rotate around its horizontal axis in the front-back direction, the fixing assembly includes a mounting component 8, a rotating component 9, a positioning component 10, and a mating component 11. The mating component 11 is fixedly connected to the slider 4, and the rotating component 9 is rotatably connected to the mating component 11, allowing the rotating component 9 to rotate around its horizontal axis in the front-back direction. The positioning component 10 is used to position the rotation angle of the rotating component 9. The mounting component 8 is fixedly mounted on the rotating component 9 and can rotate with it. The angle grinder is fixedly mounted on the mounting component 8. Here, the mounting component 8 can be a mounting platform that uses bolts, screws, or snap-fit ​​blocks to fix the angle grinder. The rotating component 9 and the mating component 11 can be rotatably mated, either by a shaft and a sleeve, a first screw and a threaded sleeve, a hinged connection, or other feasible existing technologies, as long as the mounting component 8 can rotate around its horizontal axis in the front-back direction. Optionally, for the positioning component 10, a clamping component can be provided on the mounting base 2. When the mounting component 8 rotates to the designated position, the clamping component clamps the mounting component 8 for positioning. Alternatively, a linkage slider mechanism can be used for limiting the position. For example, a guide groove can be opened on the mounting base 2, and a sliding block can be provided in the guide groove. The sliding block is connected to the mounting component 8 through a linkage. One end of the linkage is hinged to the sliding block, and the other end of the linkage is hinged to the mounting component 8. When the mounting component 8 rotates to the designated position, the sliding block can be limited and fixed, such as by screw fixing or snap-fit ​​fixing. Other feasible limiting methods can also be used.

[0037] like Figures 1 to 3As shown, one specific arrangement of the fixing component is as follows: the rotating part 9 is a second screw arranged horizontally in the front-back direction, the mating part 11 is a sleeve, and the sleeve is provided with a thread that mates with the second screw. The second screw is threadedly engaged with the sleeve. The second screw has a first end and a second end. The first end of the second screw passes through the sleeve, and the second end of the second screw is fixedly connected to the mounting part 8. Generally speaking, both the first end and the second end of the second screw are outside the sleeve to facilitate the connection between the mounting part 8 and the positioning part 10. The second end of the second screw can also be located inside the sleeve, and a connecting block can be used to weld and fix it to the second end of the second screw and the mounting part 8 respectively. The positioning part 10 is a nut, which is threadedly engaged with the first end of the second screw and abuts against the end of the sleeve to limit the rotation of the second screw in one direction and to limit the rotation of the mounting part 8 towards the grinding roller. Regarding how the nut restricts the rotation of the second screw in one direction, taking forward rotation as an example, when the nut abuts against the end of the sleeve, if the second screw rotates forward, the first end of the second screw tends to move closer to the sleeve. However, because the nut abuts against the end of the sleeve, the second screw cannot rotate forward, thus restricting the rotation of the second screw in one direction. In corresponding applications, the mounting part 8 should be restricted from rotating towards the grinding roller. This allows control of the feed rate, preventing the mounting part 8 from continuing to rotate towards the grinding roller, resulting in inconsistent chamfer depths. Since the nut cannot restrict the mounting part 8 from rotating away from the grinding roller, the worker needs to manually press down on the angle grinder during the chamfering process to prevent the angle grinder from jumping upwards.

[0038] like Figures 1 to 3 As shown, in one specific configuration of the mounting component 8, the mounting component 8 is a semi-enclosed frame, with the angle grinder positioned within the semi-enclosed frame. The semi-enclosed frame includes a first perimeter 81 and a second perimeter 82 arranged opposite each other. A first screw 12 is provided on the first perimeter 81, and a second screw 13 is provided on the second perimeter 82. Corresponding threaded holes are provided on the angle grinder, and both the first screw 12 and the second screw 13 are threaded into the threaded holes on the angle grinder. The semi-enclosed frame structure effectively encloses and supports the angle grinder, enhancing installation stability. The two-point screw fixing method ensures a firm connection, effectively resisting vibrations generated during grinding, preventing the angle grinder from loosening, and ensuring operational safety. Both the first perimeter 81 and the second perimeter 82 can be provided with side plates. The two side plates can be parallel, or the plane containing the first perimeter 81 can intersect the plane containing the second perimeter 82, so that the extension lines of the first screw 12 and the second screw 13 are either opposite in plane or intersect. The extensions of the first screw 12 and the second screw 13 are either out of plane or intersect, meaning that the two screws lock the angle grinder from different directions. This design generates a combined locking force, which more effectively prevents the angle grinder from loosening under vibration compared to screws screwed in from the same direction, thus enhancing the reliability of the fixation.

Claims

1. A chamfering device for a grinding roller, comprising a base (1), a rotating support mechanism provided on the base (1), the rotating support mechanism being used to support the grinding roller so that the axis of the grinding roller is horizontally arranged in the left-right direction, the grinding roller being able to rotate around its own axis, and a grinding mechanism being fixedly provided at the end of the base (1) near the grinding roller, the grinding mechanism being located on one side of the end face of the grinding roller, and being used to chamfer the end face of the grinding roller, characterized in that: The grinding mechanism includes a mounting base (2) and an angle grinder. The mounting base (2) is fixedly mounted on the base (1). A fixing component is provided on the mounting base (2). The fixing component is used for mounting and fixing the angle grinder. The mounting base (2) has a vertically arranged slide groove (3). A first screw is vertically arranged in the slide groove (3). The first screw is threadedly connected to a slider (4). The first screw can drive the slider (4) to move up and down. The slider (4) is fixedly connected to the fixing component.

2. The chamfering device for grinding rollers as described in claim 1, characterized in that: The groove (3) passes through the top of the mounting base (2), and a turntable (5) is provided on the top of the mounting base (2). The turntable (5) is fixedly connected to the end of the first screw.

3. The chamfering device for grinding rollers as described in claim 1, characterized in that: The rotating support mechanism includes at least two rotating wheels (6), which are rotatably mounted on the base (1). The rotation axes of the rotating wheels (6) are all horizontally arranged in the left and right directions. The rotating wheels (6) are used to support the grinding roller, so that the grinding roller can rotate around its own axis on the rotating wheels (6). The base (1) is also provided with a limiting member (7), which contacts the left and right end faces of the grinding roller to limit the left and right movement of the grinding roller.

4. The chamfering device for grinding rollers as described in claim 3, characterized in that: The rotating support mechanism includes four rotating wheels (6), which are distributed along the four corners of a rectangle. The four rotating wheels (6) form a support structure to support the grinding roller. The circumferential side of the grinding roller contacts the circumferential side of the rotating wheels (6).

5. The chamfering device for grinding rollers as described in claim 1, characterized in that: The fixed assembly includes a mounting part (8), a rotating part (9), a positioning part (10), and a mating part (11). The mating part (11) is fixedly connected to the slider (4). The rotating part (9) is rotatably connected to the mating part (11), so that the rotating part (9) can rotate around the horizontal axis in the front-back direction. The positioning part (10) is used to position the rotation angle of the rotating part (9). The mounting part (8) is fixedly set on the rotating part (9) and can rotate together with the rotating part (9). The angle grinder is fixedly installed on the mounting part (8).

6. The chamfering device for grinding rollers as described in claim 5, characterized in that: The rotating part (9) is a second screw arranged horizontally in the front-back direction. The mating part (11) is a sleeve with a thread that mates with the second screw inside. The second screw is threaded with the sleeve. The second screw has a first end and a second end. The first end of the second screw passes through the sleeve. The second end of the second screw is fixedly connected to the mounting part (8). The positioning part (10) is a nut. The nut is threaded with the first end of the second screw and abuts against the end of the sleeve. It is used to limit the rotation of the second screw in one direction and to limit the mounting part (8) from rotating towards the grinding roller.

7. The chamfering device for grinding rollers as described in claim 5, characterized in that: The mounting component (8) is a semi-enclosed frame, and the angle grinder is set inside the semi-enclosed frame. The semi-enclosed frame includes a first edge (81) and a second edge (82) arranged opposite to each other. A first screw (12) is provided on the first edge (81), and a second screw (13) is provided on the second edge (82). A threaded hole is provided on the angle grinder, and the first screw (12) and the second screw (13) are threadedly engaged with the threaded hole on the angle grinder.

8. The chamfering device for grinding rollers as described in claim 7, characterized in that: The first edge (81) and the second edge (82) are both panels. The plane of the first edge (81) intersects the plane of the second edge (82), so that the extension line of the tail of the first screw (12) is opposite to or intersects the extension line of the tail of the second screw (13).

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