Grinding machine with clamping device

Abstract

The utility model relates to the technical field of grinding machines, in particular to a grinding machine with a clamping device, which is characterized in that a transverse plate is horizontally arranged on a rack, and the transverse plate horizontally moves along the width direction of the rack under the action of a translation component; the two first sliding blocks correspond to two first grooves symmetrically formed in the transverse plate in a one-to-one mode and are in sliding connection with the two first grooves, and the driving assembly is connected with the two first sliding blocks and used for driving the two first sliding blocks and the clamping modules on the two first sliding blocks to be close to or away from each other; the first fixing block is rotatably arranged on the first sliding block, two second grooves are formed in the side, close to the workpiece, of the first fixing block, and a second fixing block is rotatably arranged in each second groove; the lifting air cylinder is vertically arranged above the clamping module and connected with the rack through a mounting block, a first motor is arranged at the end of a piston rod of the lifting air cylinder, and a grinding wheel is connected to an output shaft of the first motor through a quick locking assembly. The grinding wheel clamping device solves the problems that in the prior art, the clamping range is low, and the grinding wheel is inconvenient to replace.

Description

Technical Field

[0001] The utility model relates to the technical field of grinding machines, in particular to a grinding machine with a clamping device. Background Art

[0002] The grinding wheel machine is a precision tool widely used in metal processing, wood processing, glass processing and other industries. Its main function is to grind and cut the workpiece through a rotating grinding wheel. The performance and ease of operation of the grinding wheel machine directly affect the processing efficiency and quality. With the development of modern industry, the requirements for grinding wheel machines are getting higher and higher. Among them, the speed and convenience of changing the grinding wheel are one of the important indicators to measure the performance of the grinding wheel machine. At present, most of the grinding wheel machines on the market use manual or electric methods to replace the grinding wheel, which has problems such as long replacement time, complicated operation, and potential safety hazards. Some high-end grinding wheel machines use a quick replacement system. Although it increases the replacement speed, the structure is complex and the cost is high, which limits its popularity in the market. Therefore, how to design a grinding wheel machine with simple structure, low cost and convenient replacement is an urgent problem to be solved in the industry.

[0003] The Chinese patent application with publication number CN211465888U discloses a double-headed grinding machine that is convenient for replacing grinding wheels. The grinding machine controls the extension and retraction of the telescopic positioning member that slides in the radial direction in the limiting axis through an axially detachable limiting member to achieve positioning. However, the technical solution has the following technical problems in practical applications: the reliability of the limiting member may affect the replacement process of the grinding wheel, and the telescopic positioning member may wear or malfunction after long-term use, resulting in inaccurate positioning, thereby affecting the grinding effect; in addition, the grinding machine needs to remove the fixed cover and the detachable cover when replacing the grinding wheel, which is relatively cumbersome and inconvenient. In addition, when using the grinding machine, different workpieces have different appearances, and the fixtures suitable for a certain type of workpiece cannot be adapted to other types of workpieces, resulting in the need to use different fixtures to adapt to workpieces of different shapes during the production process, reducing the practicality of the device. Utility Model Content

[0004] In view of this, the utility model provides a grinding wheel machine with a clamping device, aiming to solve the problems in the prior art that the grinding wheel is inconvenient to replace and the application range of the clamp is narrow.

[0005] In order to achieve the above objectives, the present invention is implemented through the following technical solutions:

[0006] A grinding machine with a clamping device, comprising:

[0007] A frame, on which a transverse plate is horizontally arranged, and the transverse plate moves horizontally along the width direction of the frame under the action of a translation assembly;

[0008] Two first sliders are respectively corresponding to and slidably connected to two first grooves symmetrically arranged on the transverse plate, and a driving assembly is connected to the two first sliders to drive the two first sliders and the clamping modules thereon to move closer to or farther from each other;

[0009] The clamping module comprises:

[0010] A first fixed block is rotatably disposed on the first sliding block, two second grooves are disposed on a side of the first fixed block close to the workpiece, and a second fixed block is rotatably disposed in each of the second grooves;

[0011] A lifting cylinder is vertically arranged above the clamping module. The lifting cylinder is connected to the frame through a mounting block. A first motor is arranged at the end of the piston rod of the lifting cylinder. A grinding wheel is connected to the output shaft of the first motor through a quick lock assembly.

[0012] A further improvement of the utility model is that a plurality of third grooves are arranged on a side of the second fixing block close to the workpiece, and a plurality of clamping blocks are rotatably connected in the plurality of third grooves respectively.

[0013] A further improvement of the utility model is that the quick lock assembly comprises:

[0014] A fixed shaft with a hollow structure is arranged on the output shaft of the first motor, and a plurality of guide grooves connected to the fixed shaft are distributed on the outside of the fixed shaft, each of the guide grooves is arranged radially along the fixed shaft, and a claw is slidably connected in each guide groove.

[0015] The locking plate is rotatably nested inside the fixed shaft, the planar thread set on the first side of the locking plate is adapted to the threaded segment set on one side of the claw, the first bevel gear set on the second side of the locking plate is meshed with the second bevel gear set inside the fixed shaft, and the shaft end of the second bevel gear passes through the fixed shaft.

[0016] A further improvement of the utility model is that the translation assembly comprises:

[0017] A first screw rod is horizontally arranged along the width direction of the frame and is driven to rotate by a second motor, wherein the first screw rod is threadedly connected to and penetrates the transverse plate;

[0018] The first optical axis is arranged parallel to the first screw rod and is slidably connected with and penetrates the transverse plate.

[0019] A further improvement of the utility model is that the driving assembly comprises:

[0020] A rotary cylinder is arranged on the lower surface of the horizontal plate, wherein the output end of the rotary cylinder is connected to a rotary shaft vertically arranged on the lower surface of the horizontal plate, the rotary shaft is located between the two first grooves, and the rotary shaft rotates under the action of the rotary cylinder;

[0021] The first connecting rod has a middle portion connected to the rotating shaft, two ends of the first connecting rod are respectively hinged to the first ends of two second connecting rods, and the second end of each second connecting rod is hinged to the corresponding lower end of the first sliding block.

[0022] A further improvement of the utility model is that a motion component is also arranged on the frame, and the motion component drives the mounting block to move horizontally along the length direction of the frame.

[0023] A further improvement of the utility model is that the motion component comprises:

[0024] A second screw rod is horizontally arranged along the length direction of the frame and is driven to rotate by a third motor, wherein the second screw rod is threadedly connected to and penetrates the mounting block;

[0025] The second optical axis is arranged parallel to the second screw rod and is slidably connected with and penetrates the mounting block.

[0026] A further improvement of the present invention is that the first motor, the second motor, the third motor, the lifting cylinder and the rotating cylinder are all electrically connected to a controller arranged on the frame.

[0027] A further improvement of the utility model is that a side of the clamping block close to the workpiece is provided with anti-slip patterns.

[0028] A further improvement of the utility model is that a dust collecting hood is further arranged above the grinding wheel, and the top of the dust collecting hood is connected to a dust collecting device arranged on one side of the frame through a dust collecting pipe.

[0029] Due to the adoption of the above technical solution, the technical progress achieved by the utility model is:

[0030] The utility model provides a grinding wheel machine with a clamping device, which is connected to a grinding wheel through a quick lock component to achieve quick replacement of the grinding wheel. The design of the quick lock component simplifies the operation process of replacing the grinding wheel, improves the replacement speed and convenience; at the same time, the grinding wheel machine has good reliability and stability, and reduces maintenance costs and difficulty.

[0031] The first bevel gear meshing with the second bevel gear is driven to rotate by rotating. Since the first bevel gear is connected to the locking plate, when the first bevel gear rotates, the locking plate is driven to rotate. Moreover, since the plane thread provided on the first side surface of the locking plate is matched with the thread segment provided on one side of the claw, when the locking plate rotates, the claws are driven to move closer to or away from each other, thereby realizing the replacement and installation of the grinding wheel. The whole operation process is simple and quick.

[0032] The driving assembly drives the two first sliding blocks and the first fixed blocks thereon to approach each other, clamping the workpiece located on the cross plate. The first fixed block, the second fixed block and the clamping block will rotate according to the shape of the workpiece, so that the clamping block can contact the outer surface of the workpiece to the maximum extent. As a result, the workpiece is fixed more firmly and can adapt to workpieces of different shapes, thereby increasing the scope of application of the clamping module. BRIEF DESCRIPTION OF THE DRAWINGS

[0033] In order to more clearly illustrate the technical solutions in the embodiments of the present invention, the drawings required for use in the description of the embodiments will be briefly introduced below. Obviously, the drawings described below are only some embodiments of the present invention. For ordinary technicians in this field, other drawings can be obtained based on these drawings without creative work.

[0034] Figure 1 This is a schematic diagram of the structure of the grinding wheel machine described in the utility model;

[0035] Figure 2 This is a schematic diagram of the structure of the translation assembly of the utility model;

[0036] Figure 3 This is a schematic diagram of the structure of the clamping module of the utility model;

[0037] Figure 4 It is a schematic diagram of the position structure of the locking disk, the plane thread and the first bevel gear of the utility model;

[0038] Figure 5 It is a structural schematic diagram of the locking disk of the utility model.

[0039] Description of reference numerals:

[0040] 10-frame, 11-cross plate, 12-first slider, 13-lifting cylinder, 14-mounting block, 15-first motor, 16-grinding wheel, 17-controller, 18-dust hood, 19-dust collection equipment, 20-translation assembly, 21-first screw, 22-second motor, 23-first optical axis, 30-driving assembly, 31-rotating cylinder, 32-rotating axis, 33-first connecting rod, 34-second connecting rod, 40-clamping module, 41-first fixed block, 42-second fixed block, 43-clamping block, 50-quick lock assembly, 51-fixed shaft, 52-claw, 53-locking disk, 54-plane thread, 55-first bevel gear, 56-second bevel gear, 60-motion assembly, 61-second screw, 62-third motor, 63-second optical axis. DETAILED DESCRIPTION

[0041] The following will be combined with the accompanying drawings in the embodiments of the utility model to clearly and completely describe the technical solutions in the embodiments of the utility model. Obviously, in the following description, specific details such as specific system structures and technologies are proposed for the purpose of explanation rather than limitation, so as to thoroughly understand the embodiments of the utility model. However, it should be clear to those skilled in the art that the utility model can also be implemented in other embodiments without these specific details. In other cases, detailed descriptions of well-known systems, devices, circuits, and methods are omitted to prevent unnecessary details from hindering the description of the utility model.

[0042] The utility model provides a grinding wheel 16 machine with a clamping device, according to the attached manual Figure 1 -Attached Figure 5 It can be seen that it includes a frame 10, a first slider 12, a clamping module 40, a lifting cylinder 13 and a grinding wheel 16. A horizontal plate 11 is horizontally arranged on the frame 10, and the horizontal plate 11 moves horizontally along the width direction of the frame 10 under the action of the translation assembly 20; the two first sliders 12 correspond to the two first grooves symmetrically arranged on the horizontal plate 11 one by one and are slidably connected, and the driving assembly 30 is connected to the two first sliders 12, which is used to drive the two first sliders 12 and the clamping modules 40 thereon to move closer to or away from each other; the clamping module 40 includes a first fixed block 41, a second fixed block 42 and a clamping block 43. The first fixed block 41 is rotatably arranged on the first slider 12, and two second grooves are arranged on the side of the first fixed block 41 close to the workpiece, and a second fixed block 42 is rotatably arranged in each second groove; a plurality of third grooves are arranged on the side of the second fixed block 42 close to the workpiece, and a plurality of clamping blocks 43 are rotatably connected in the plurality of third grooves. The lifting cylinder 13 is vertically arranged above the clamping module 40 . The lifting cylinder 13 is connected to the frame 10 through the mounting block 14 . A first motor 15 is arranged at the end of the piston rod of the lifting cylinder 13 . A grinding wheel 16 is connected to the output shaft of the first motor 15 through a quick lock assembly 50 .

[0043] Before using the grinding wheel 16 for grinding, the operator places the workpiece to be ground on the upper surface of the horizontal plate 11 and operates the driving assembly 30. The driving assembly 30 drives the two first sliding blocks 12 and the first fixed blocks 41 thereon to approach each other, and clamps the workpiece located on the horizontal plate 11. During the clamping process, the first fixed block 41, the second fixed block 42 and the clamping block 43 will rotate according to the shape of the workpiece, so that the clamping block 43 can contact the outer surface of the workpiece to the maximum extent. Compared with the prior art, the workpiece is fixed more firmly and can adapt to workpieces of different shapes, thereby increasing the scope of application of the clamping module 40.

[0044] The lifting cylinder 13 is connected to the frame 10 through the mounting block 14. The mounting block 14 plays a role of connection and support to ensure that the lifting cylinder 13 is firmly installed on the frame 10. When grinding, the lifting cylinder 13 is operated, and the piston rod end of the lifting cylinder 13 extends to drive the first motor 15 to descend. The first motor 15 drives the grinding wheel 16 at its output end to rotate and grind the surface of the workpiece. The grinding wheel 16 is connected to the first motor 15 through the quick lock assembly 50, which is convenient for the replacement of the grinding wheel 16. The translation assembly 20 drives the cross plate 11 to move horizontally along the width direction of the frame 10, and the workpiece on the cross plate 11 moves accordingly, reducing the operation of workers pushing materials. Improved production efficiency. The side of the clamping block 43 close to the workpiece is provided with an anti-slip pattern. The design of providing an anti-slip pattern on the side of the clamping block 43 close to the workpiece helps to increase the clamping force and improve the stability of the clamping, and at the same time, it can also reduce scratches or damage to the surface of the workpiece.

[0045] In this embodiment, according to the drawings of the specification, the quick lock assembly 50 includes a fixed shaft 51, a claw 52, ​​a locking plate 53, a first bevel gear 55, and a second bevel gear 56. The fixed shaft 51 of the hollow structure is arranged on the output shaft of the first motor 15, and a plurality of guide grooves connected thereto are distributed on the outside of the fixed shaft 51, each guide groove is arranged radially along the fixed shaft 51, and a claw 52 is slidably connected in each guide groove, the locking plate 53 is rotatably nested inside the fixed shaft 51, the plane thread 54 arranged on the first side of the locking plate 53 is adapted to the thread segment arranged on one side of the claw 52, ​​the first bevel gear 55 arranged on the second side of the locking plate 53 is meshed with the second bevel gear 56 arranged inside the fixed shaft 51, and the shaft end of the second bevel gear 56 passes through the fixed shaft 51.

[0046] The design of the quick lock assembly 50 simplifies the operation process of replacing the grinding wheel 16, and improves the replacement speed and convenience. The shaft end of the second gear is provided with a buckle after passing through the fixed shaft 51. The operator inserts the handle into the buckle and rotates the second bevel gear 56. Because the second bevel gear 56 is meshed with the first bevel gear 55, the first bevel gear 55 will also rotate. Because the first bevel gear 55 is connected to the locking plate 53, when the first bevel gear 55 rotates, it will drive the locking plate 53 to rotate. Because the planar thread 54 set on the first side of the locking plate 53 is adapted to the threaded segment set on one side of the claw 52, ​​when the locking plate 53 rotates, it will drive the claw 52 to approach each other. The claw 52 approaches or moves away from each other, and the grinding wheel 16 can be quickly removed, thereby realizing the replacement and installation of the grinding wheel 16. The entire operation process is simple and fast.

[0047] In this embodiment, according to the drawings of the specification, the translation assembly 20 includes a first screw rod 21, a second motor 22 and a first optical axis 23. The first screw rod 21 is horizontally arranged along the width direction of the frame 10, and is driven to rotate by the second motor 22. The first screw rod 21 is threadedly connected to and penetrates the transverse plate 11; the first optical axis 23 is arranged parallel to the first screw rod 21, and is slidably connected to and penetrates the transverse plate 11.

[0048] The second motor 22 drives the first screw 21 to rotate, and the first screw 21 drives the horizontal plate 11 to move horizontally through the threaded connection with the horizontal plate 11. The first optical axis 23 is arranged parallel to the first screw 21 and penetrates the horizontal plate 11. In this way, the horizontal plate 11 can slide along the first optical axis 23 when moving horizontally, thereby realizing the horizontal movement of the horizontal plate 11 in the width direction of the frame 10.

[0049] In this embodiment, according to the drawings in the specification, the driving assembly 30 includes a rotary cylinder 31, a first connecting rod 33 and a second connecting rod 34. The rotary cylinder 31 is arranged on the lower surface of the horizontal plate 11, and the output end of the rotary cylinder 31 is connected to a rotary shaft 32 arranged vertically on the lower surface of the horizontal plate 11, and the rotary shaft 32 is located between the two first grooves, and the rotary shaft 32 rotates under the action of the rotary cylinder 31; the middle part of the first connecting rod 33 is connected to the rotary shaft 32, and the two ends of the first connecting rod 33 are respectively hinged to the first ends of the two second connecting rods 34, and the second end of each second connecting rod 34 is hinged to the lower end of the corresponding first slider 12.

[0050] The rotating cylinder 31 is arranged on the lower surface of the horizontal plate 11, and its output end is connected to the rotating shaft 32 vertically arranged on the lower surface of the horizontal plate 11. Under the action of the rotating cylinder 31, the rotating cylinder 31 causes the rotating shaft 32 to rotate. The middle part of the first connecting rod 33 is connected to the rotating shaft 32, so that when the rotating shaft 32 rotates, the first connecting rod 33 also rotates. The two ends of the first connecting rod 33 are respectively hinged to the first ends of the two second connecting rods 34, so that the first connecting rod 33 and the second connecting rod 34 form a connecting rod mechanism. The second end of each second connecting rod 34 is hinged to the lower end of the corresponding first slider 12, so that when the connecting rod mechanism composed of the first connecting rod 33 and the second connecting rod 34 rotates, the first slider 12 will produce corresponding movement. In summary, when the rotating cylinder 31 acts to rotate the rotating shaft 32, the rotating shaft 32 drives the first connecting rod 33 to rotate, and then through the action of the connecting rod mechanism, the two first sliders 12 are moved closer or farther from each other, and then the two clamping modules 40 are driven to move closer or farther from each other.

[0051] In this embodiment, according to the drawings of the specification, a motion assembly 60 is also provided on the frame 10, and the motion assembly 60 drives the mounting block 14 to move horizontally along the length direction of the frame 10. The motion assembly 60 includes: a second screw 61, a second optical axis 63 and a third motor 62. The second screw 61 is horizontally arranged along the length direction of the frame 10, and rotates under the drive of the third motor 62. The second screw 61 is threadedly connected to and penetrates the mounting block 14; the second optical axis 63 is arranged parallel to the second screw 61, and is slidably connected to and penetrates the mounting block 14.

[0052] When the surface area of ​​the workpiece is relatively large, the grinding wheel 16 needs to be driven by the motion assembly 60 to ensure that the grinding wheel 16 can grind the entire surface of the workpiece. Specifically, the third motor 62 drives the second screw 61 to rotate, and the second screw 61 drives the mounting block 14 to move horizontally through the threaded connection with the mounting block 14, and the mounting block 14 slides along the second optical axis 63. Through such a motion process, the motion assembly 60 can realize the horizontal movement of the mounting block 14 along the length direction of the frame 10. Since the grinding wheel 16 is fixed on the mounting block 14, the grinding wheel 16 will also move horizontally along the length direction of the frame 10 to grind the entire surface of the part.

[0053] In this embodiment, according to the drawings in the specification, a dust collecting hood 18 is further provided above the grinding wheel 16 , and the top of the dust collecting hood 18 is connected to a dust collecting device 19 provided on one side of the frame 10 through a dust collecting pipe.

[0054] In order to effectively collect dust and waste generated during the grinding process of the grinding wheel 16, keep the working environment clean, and reduce the risk of dust inhalation by the operator. By installing the dust hood 18 above the grinding wheel 16 and connecting it to the dust collection device 19, the dust hood 18 is located above the grinding wheel 16 and can directly cover the grinding area. The dust collection device 19 works to effectively collect dust and waste generated by grinding, reducing the pollution of dust to the surrounding environment.

[0055] The first motor 15, the second motor 22, the third motor 62, the lifting cylinder 13 and the rotating cylinder 31 are all electrically connected to the controller 17 disposed on the frame 10. Through the electrical connection, the controller 17 can achieve precise control of the first motor 15, the second motor 22, the third motor 62, the lifting cylinder 13 and the rotating cylinder 31.

[0056] It should be noted that, in this patent application, relational terms such as first and second, etc. are only used to distinguish one entity or operation from another entity or operation, and do not necessarily require or imply any such actual relationship or order between these entities or operations. Moreover, the terms "include", "comprise" or any other variants thereof are intended to cover non-exclusive inclusion, so that a process, method, article or device including a series of elements includes not only those elements, but also other elements not explicitly listed, or also includes elements inherent to such process, method, article or device. In the absence of more restrictions, the sentence "includes an element defined by ... does not exclude the existence of other identical elements in the process, method, article or device including the element".

[0057] The above embodiments are only used to illustrate the technical solutions of the present invention, rather than to limit it. Although the present invention has been described in detail with reference to the aforementioned embodiments, those skilled in the art should understand that the technical solutions described in the aforementioned embodiments can still be modified, or some of the technical features can be replaced by equivalents. These modifications or replacements do not deviate the essence of the corresponding technical solutions from the spirit and scope of the technical solutions of the embodiments of the present invention, and should all be included in the protection scope of the present invention.

Claims

1. A grinding machine with a clamping device, characterized in that: include: A frame, on which a transverse plate is horizontally arranged, and the transverse plate moves horizontally along the width direction of the frame under the action of a translation assembly; Two first sliders are respectively corresponding to and slidably connected to two first grooves symmetrically arranged on the transverse plate, and a driving assembly is connected to the two first sliders to drive the two first sliders and the clamping modules thereon to move closer to or farther from each other; The clamping module comprises: A first fixed block is rotatably disposed on the first sliding block, two second grooves are disposed on a side of the first fixed block close to the workpiece, and a second fixed block is rotatably disposed in each of the second grooves; A lifting cylinder is vertically arranged above the clamping module. The lifting cylinder is connected to the frame through a mounting block. A first motor is arranged at the end of the piston rod of the lifting cylinder. A grinding wheel is connected to the output shaft of the first motor through a quick lock assembly.

2. A grinding machine with a clamping device according to claim 1, characterized in that: A plurality of third grooves are arranged on a side of the second fixing block close to the workpiece, and a plurality of clamping blocks are rotatably connected in the plurality of third grooves respectively.

3. A grinding machine with a clamping device according to claim 1, characterized in that: The quick lock assembly comprises: A fixed shaft with a hollow structure is arranged on the output shaft of the first motor, and a plurality of guide grooves connected to the fixed shaft are distributed on the outside of the fixed shaft, each of the guide grooves is arranged radially along the fixed shaft, and a claw is slidably connected in each guide groove. The locking plate is rotatably nested inside the fixed shaft, the planar thread set on the first side of the locking plate is adapted to the threaded segment set on one side of the claw, the first bevel gear set on the second side of the locking plate is meshed with the second bevel gear set inside the fixed shaft, and the shaft end of the second bevel gear passes through the fixed shaft.

4. A grinding machine with a clamping device according to claim 3, characterized in that: The translation assembly comprises: A first screw rod is horizontally arranged along the width direction of the frame and is driven to rotate by a second motor, wherein the first screw rod is threadedly connected to and penetrates the transverse plate; The first optical axis is arranged parallel to the first screw rod and is slidably connected with and penetrates the transverse plate.

5. A grinding machine with a clamping device according to claim 4, characterized in that: The drive assembly comprises: A rotary cylinder is arranged on the lower surface of the horizontal plate, wherein the output end of the rotary cylinder is connected to a rotary shaft vertically arranged on the lower surface of the horizontal plate, the rotary shaft is located between the two first grooves, and the rotary shaft rotates under the action of the rotary cylinder; The first connecting rod has a middle portion connected to the rotating shaft, two ends of the first connecting rod are respectively hinged to the first ends of two second connecting rods, and the second end of each second connecting rod is hinged to the corresponding lower end of the first sliding block.

6. A grinding machine with a clamping device according to claim 5, characterized in that: The frame is also provided with a motion component, and the motion component drives the mounting block to move horizontally along the length direction of the frame.

7. A grinding machine with a clamping device according to claim 6, characterized in that: The motion components include: A second screw rod is horizontally arranged along the length direction of the frame and is driven to rotate by a third motor, wherein the second screw rod is threadedly connected to and penetrates the mounting block; The second optical axis is arranged parallel to the second screw rod and is slidably connected with and penetrates the mounting block.

8. A grinding machine with a clamping device according to claim 7, characterized in that: The first motor, the second motor, the third motor, the lifting cylinder and the rotating cylinder are all electrically connected to a controller arranged on the frame.

9. A grinding machine with a clamping device according to claim 2, characterized in that: The side of the clamping block close to the workpiece is provided with anti-slip patterns.

10. A grinding machine with a clamping device according to claim 1, characterized in that: A dust collecting hood is also arranged above the grinding wheel, and the top of the dust collecting hood is connected to the dust collecting device arranged on one side of the frame through a dust collecting pipe.

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