Fastener polishing tool

Abstract

The utility model discloses a fastener polishing tool, and belongs to the field of fastener machining devices.The fastener polishing tool comprises a box body, a protection frame is fixedly mounted at the top end of the box body, a dust collection frame is fixedly mounted at the top end of the box body, the bottom end of the dust collection frame extends into the box body, and a leakage plate is fixedly mounted in the dust collection frame; a supporting column is fixedly installed at the top end of the bushing plate, a clamping assembly is arranged between the top end of the supporting column and the protective frame, air cylinders are fixedly installed on the two sides of the protective frame, piston shafts of the two air cylinders penetrate into the protective frame, and polishing assemblies are arranged at the ends of the piston shafts of the two air cylinders. A supporting plate is fixedly installed on one side of the box body, and a filtering frame and an exhaust fan are fixedly installed at the top end of the supporting plate. Through the arrangement of the clamping assembly, the effect of clamping and fixing the nut is achieved, through the arrangement of the two sets of grinding assemblies, the equipment can conveniently grind the two sides of the nut, manual face changing is not needed, and the grinding efficiency of the nut is improved.

Description

Technical Field

[0001] The present application relates to the field of fastener processing devices, and more specifically, to a fastener grinding tool. Background Art

[0002] Fasteners are a type of mechanical parts used for fastening and connection and are extremely widely used. They are used to fasten two or more components to connect them into a whole. Nuts are one type of fasteners. The processing of fasteners includes cutting, shaping, grinding and other processes. The grinding step can quickly polish the surface of the fastener smooth for subsequent use.

[0003] The patent with application number 202320741338.7 discloses a new type of grinding tool for fastener manufacturing, including a base, one side of the top of the base is fixedly connected to a side plate, one side of the side plate is fixedly connected to a drive motor, and the output end of the drive motor passes through the side plate and is fixedly connected to a mounting plate. The application is provided with a fixed plate, a second threaded sleeve, a bidirectional screw, a lifting groove, a connecting frame, a second rotating wheel, a mounting plate and a positioning clamp. Before grinding, the nut is fitted on one side of the mounting plate, and then the second rotating wheel is rotated to drive the bidirectional screw to rotate. While the bidirectional screw rotates, the connecting frame is driven to move through the second threaded sleeve, and the connecting frame drives the positioning clamp to fit on both ends of the nut, thereby positioning the nut. The connecting frame fits inside the lifting groove to limit the positioning clamp to ensure stability after positioning, which solves the problem of inconvenient positioning of the fastener.

[0004] With regard to the above-mentioned related technologies, the cooperation of two positioning clamps plays the role of positioning and clamping the nut, which is convenient for subsequent grinding of the equipment. However, the equipment can only grind one side of the nut. When one side is polished, it needs to be manually replaced, which reduces the grinding efficiency of the nut. Utility Model Content

[0005] In order to solve the above problems, the present application provides a fastener grinding tool, which adopts the following technical solutions:

[0006] A fastener grinding tool comprises a box body, a protective frame is fixedly installed on the top of the box body, and a dust collecting frame is fixedly installed on the top of the box body, the bottom end of the dust collecting frame extends into the box body, and a leaking plate is fixedly installed in the dust collecting frame, a supporting column is fixedly installed on the top of the leaking plate, and a clamping assembly is provided between the top of the supporting column and the protective frame, cylinders are fixedly installed on both sides of the protective frame, and two cylinder piston shafts are penetrated into the protective frame, and grinding assemblies are provided on the ends of the two cylinder piston shafts;

[0007] A support plate is fixedly installed on one side of the box body, and a filter frame and an exhaust fan are fixedly installed on the top of the support plate, one end of the exhaust fan is connected to the filter frame, an air guide scoop is fixedly installed on the inner wall of the top of the box body, and a dust extraction pipe is connected between the bottom end of the air guide scoop and the side opposite to the filter frame, a filter assembly is provided in the filter frame, and a cleaning assembly is provided in the air guide scoop.

[0008] By adopting the above technical solution, when the equipment is used, the staff puts the nut on the top of the support column and fixes it through the clamping assembly. Then, the two cylinders drive the same group of grinding assemblies to move to the side opposite to the nut. The grinding assembly contacts the side opposite to the nut to grind the nut. Moreover, by setting the two groups of grinding assemblies, it is convenient for the equipment to grind both sides of the nut at the same time without manual surface change, which is conducive to improving the grinding efficiency of the nut. When the equipment grinds the nut, a large amount of waste chips may be generated. The outer shell generates suction through the exhaust fan to make the waste chips pass through. The dust collecting frame enters the air guide hopper. The dust collecting frame is provided with a leak plate to support and stabilize the support column, and prevent the nut from accidentally falling into the air guide hopper when the staff takes it. A cleaning component is provided in the air guide hopper to clean the leak plate, which helps to avoid blockage of the leak plate and is beneficial to maintaining the efficiency of the equipment in collecting waste chips. The waste chips enter the dust extraction pipe through the air guide hopper, and then enter the filter frame. The filter component in the filter frame plays the role of filtering and collecting waste chips, which helps to avoid waste chips from entering the collection frame and facilitates the subsequent stable use of the exhaust fan.

[0009] Furthermore, the clamping assembly includes a supporting clamp plate fixedly installed on the top of the supporting column, a telescopic rod is fixedly installed on the inner wall of the top of the protective frame, and a positioning clamp plate is fixedly installed on the end of the telescopic rod, two symmetrically distributed positioning rods are fixedly installed on the bottom end of the positioning clamp plate, a positioning hole matching the positioning rod is opened on the top of the supporting clamp plate, two symmetrically distributed stabilizing rods are fixedly installed on the top of the positioning clamp plate, and the top ends of the two stabilizing rods slide through the protective frame.

[0010] By adopting the above technical solution, the staff places the nut in the supporting splint installed on the top of the supporting column, and then drives the positioning splint downward through the telescopic rod to make the positioning splint fit with the supporting splint, which can play the role of clamping and fixing the nut. A positioning rod is provided at the bottom end of the positioning splint. The positioning rod is engaged with the positioning hole opened in the top of the supporting splint, which is conducive to maintaining the stability of the fit between the positioning splint and the supporting splint. When the positioning splint descends, the positioning splint descends synchronously with the stabilizing rod. The setting of the stabilizing rod is conducive to maintaining the stability of the lifting and lowering of the positioning splint.

[0011] Furthermore, the grinding assembly includes an installation box fixedly installed on the ends of the two cylinder piston shafts, a reduction motor is fixedly installed in the two installation boxes, and connecting columns are fixedly installed on the ends of the output shafts of the two reduction motors, the opposite ends of the two connecting columns are rotated to pass through the installation boxes of the same group, and mounting plates are fixedly installed on the ends of the two connecting columns, and grinding discs are fixedly installed on the opposite sides of the two mounting plates.

[0012] By adopting the above technical solution, when the nut is clamped, the reduction motor drives the connecting column of the same group to rotate, and the connecting column drives the mounting plate and grinding disc of the same group to rotate synchronously. Then, the cylinder drives the mounting box, reduction motor, connecting column, mounting plate and grinding disc of the same group to move synchronously toward the nut, so that the grinding disc contacts the opposite side of the nut, thereby playing the role of grinding the nut. Moreover, through the cooperation of the two grinding discs, it is convenient for the equipment to grind both sides of the nut at the same time, which is beneficial to improving the grinding efficiency of the nut.

[0013] Furthermore, the filter assembly includes a filter plate and dust-proof cotton slidably installed in the filter frame, positioning blocks are fixedly installed on both sides of the filter plate and the dust-proof cotton, and a positioning groove matching the positioning block on the same side is opened on the inner wall of the filter frame. A cover plate is hinged on one side of the top of the filter frame, and a sealing gasket is fixedly installed on the bottom end of the cover plate.

[0014] By adopting the above technical scheme, when waste debris enters the interior of the filter frame, the cooperation of the filter plate and the dust-proof cotton can filter and collect the waste debris, so that the waste debris remains in the filter frame, which helps to prevent the waste debris from entering the exhaust fan, thereby protecting the exhaust fan and facilitating the subsequent stable use of the exhaust fan. The filter plate and the dust-proof cotton are fixed to the positioning grooves on the inner wall of the filter frame through the positioning block, which is convenient for the staff to disassemble and clean later, and is beneficial to maintaining the filtering effect of the equipment. The top of the filter frame is provided with a cover plate, which plays a role of sealing the end of the filter frame, and the bottom of the cover plate is provided with a sealing gasket, which is beneficial to improve the sealing of the cover plate and the filter frame.

[0015] Furthermore, an opening is provided at the lower section of the filter frame, a collecting frame is slidably installed in the opening, limiting blocks are fixedly installed on both sides of the collecting frame, and a limiting groove matching the limiting block on the same side is provided on the inner side of the opening.

[0016] By adopting the above technical solution, the waste debris entering the filter frame enters the collection frame through the opening, which can collect the waste debris. The collection frame is fixed by the limit block and the limit groove opened on the inner side of the opening, which is convenient for the staff to disassemble and clean the waste debris later.

[0017] Furthermore, the side walls of the two limit blocks are fixedly sleeved with rubber sleeves, and the collection frame is hinged with two symmetrically distributed baffles.

[0018] By adopting the above technical scheme, the side wall of the limit block is provided with a rubber sleeve, which is conducive to increasing the friction between the limit block and the limit groove on the same side, thereby helping to improve the stability of the installation of the collection frame, and the provision of two baffles in the collection frame helps to avoid the waste chips in the collection frame from surging due to suction. When the waste chips need to be cleaned, the staff will pull out the collection frame and then flip the baffle. When the baffle is flipped to the outside of the collection frame, it is convenient for the staff to clean the waste chips.

[0019] Furthermore, the cleaning component includes a support plate fixedly installed in the air guide scoop, a rotating rod is rotatably installed on the top of the support plate, and a turbine fan blade is fixedly sleeved on the side wall of the rotating rod, and two symmetrically distributed brush plates are fixedly installed on the upper side wall of the rotating rod.

[0020] By adopting the above technical solution, when the exhaust fan generates suction to collect waste chips, the suction drives the turbine blades to rotate, and the turbine blades drive the rotating rod and the brush plate to rotate synchronously. The brush plate contacts the bottom of the leak plate, which can clean the leak plate, help avoid blockage of the leak plate, and help maintain the passing efficiency of waste chips.

[0021] In summary, this application includes the following beneficial technical effects:

[0022] (1) In the present application, the clamping assembly is provided to clamp and fix the nut, and the two sets of grinding assemblies are provided to facilitate the equipment to grind both sides of the nut without manual surface changing, which is beneficial to improving the grinding efficiency of the nut.

[0023] (2) In the present application, the exhaust fan, the filter frame, the dust extraction pipe and the air guide scoop cooperate to absorb waste debris, which helps to prevent the waste debris from flying around and polluting the environment. The filter component in the filter frame is set to filter and collect waste debris, which helps to prevent the waste debris from entering the exhaust fan, facilitating the subsequent stable use of the exhaust fan.

[0024] (3) In the present application, by setting a cleaning component in the air guide scoop, the turbine blades rotate under the suction of the exhaust fan, thereby causing the rotating rod and the brush plate to rotate synchronously. The brush plate contacts the bottom of the leak plate, thereby cleaning the leak plate, helping to avoid blockage of the holes in the leak plate and maintaining the efficiency of absorbing waste debris. BRIEF DESCRIPTION OF THE DRAWINGS

[0025] Figure 1 It is a structural schematic diagram of a fastener grinding tool;

[0026] Figure 2 For this application Figure 1 A magnified view of middle;

[0027] Figure 3 A cross-sectional view of the present application;

[0028] Figure 4 For this application Figure 3 Enlarged view of middle B;

[0029] Figure 5 For this application Figure 3 Enlarged view of C in the middle.

[0030] Description of the numbers in the figure:

[0031] 1. Box body; 2. Cylinder; 3. Protection frame; 4. Mounting box; 5. Mounting plate; 6. Telescopic rod; 7. Grinding disc; 8. Dust collecting frame; 9. Filter plate; 10. Dust-proof cotton; 11. Positioning block; 12. Exhaust fan; 13. Support plate; 14. Filter frame; 15. Limit block; 16. Collecting frame; 17. Leakage plate; 18. Support column; 19. Positioning splint; 20. Support splint; 21. Wind guide scoop; 22. Dust extraction pipe; 23. Support plate; 24. Turbine blades; 25. Brush plate; 26. Rotating rod; 27. Reducer motor; 28. Connecting column. DETAILED DESCRIPTION

[0032] The technical solutions in the embodiments of the present application will be clearly and completely described below in conjunction with the drawings in the embodiments of the present application; obviously, the described embodiments are only part of the embodiments of the present application, rather than all the embodiments, and all other embodiments obtained by ordinary technicians in this field based on the embodiments in the present application without making creative work are within the scope of protection of the present application.

[0033] In the description of the present application, it should be noted that the terms "upper", "lower", "inner", "outer", "top / bottom" and the like indicate positions or positional relationships based on the positions or positional relationships shown in the drawings, and are only for the convenience of describing the present application and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific position, be constructed and operated in a specific position, and therefore cannot be understood as limiting the present application. In addition, the terms "first" and "second" are used for descriptive purposes only, and cannot be understood as indicating or implying relative importance.

[0034] In the description of this application, it should be noted that, unless otherwise clearly specified and limited, the terms "installed", "provided with", "set / connected", "connected", etc. should be understood in a broad sense. For example, "connected" can be a fixed connection, a detachable connection, or an integral connection; it can be a mechanical connection or an electrical connection; it can be a direct connection, or it can be indirectly connected through an intermediate medium, or it can be the internal communication of two components. For ordinary technicians in this field, the specific meanings of the above terms in this application can be understood according to specific circumstances.

[0035] The following is combined with Figure 1-5This application is described in further detail.

[0036] See also Figure 1-5 A fastener grinding tool comprises a box body 1, a protective frame 3 is fixedly installed on the top of the box body 1, and a dust collecting frame 8 is fixedly installed on the top of the box body 1, the bottom end of the dust collecting frame 8 extends into the box body 1, and a leak plate 17 is fixedly installed in the dust collecting frame 8, a support column 18 is fixedly installed on the top of the leak plate 17, and a clamping assembly is provided between the top of the support column 18 and the protective frame 3, the clamping assembly comprises a supporting splint 20 fixedly installed on the top of the supporting column 18, a telescopic rod 6 is fixedly installed on the inner wall of the top of the protective frame 3, and a positioning splint 19 is fixedly installed on the end of the telescopic rod 6, two symmetrically distributed positioning rods are fixedly installed on the bottom of the positioning splint 19, a positioning hole matching the positioning rod is opened on the top of the supporting splint 20, and the top of the positioning splint 19 Two symmetrically distributed stabilizing rods are fixedly installed, and the top ends of the two stabilizing rods slide through the protective frame 3. When the equipment is in use, the staff places the nut in the supporting splint 20 installed on the top end of the supporting column 18, and then drives the positioning splint 19 to move down through the telescopic rod 6, so that the positioning splint 19 and the supporting splint 20 fit together, which can play the role of clamping and fixing the nut. A positioning rod is provided at the bottom end of the positioning splint 19, and the positioning rod is engaged with the positioning hole opened at the top end of the supporting splint 20, which is conducive to maintaining the stability of the fitting between the positioning splint 19 and the supporting splint 20, and when the positioning splint 19 descends, the positioning splint 19 descends synchronously with the stabilizing rod. The setting of the stabilizing rod is conducive to maintaining the stability of the lifting and lowering of the positioning splint 19.

[0037] Cylinders 2 are fixedly installed on both sides of the protective frame 3, and the piston shafts of the two cylinders 2 are penetrated into the protective frame 3. The ends of the piston shafts of the two cylinders 2 are provided with grinding components, and the grinding components include mounting boxes 4 fixedly installed on the ends of the piston shafts of the two cylinders 2. Reducer motors 27 are fixedly installed in the two mounting boxes 4, and connecting columns 28 are fixedly installed on the ends of the output shafts of the two reducer motors 27. The opposite ends of the two connecting columns 28 are rotated to penetrate the same group of mounting boxes 4, and the ends of the two connecting columns 28 are fixedly installed with mounting plates 5, and the two mounting plates 5 are opposite to each other. A grinding disc 7 is fixedly installed on one side. When the nut is clamped, the connecting column 28 of the same group is driven to rotate through the reduction motor 27, and the connecting column 28 drives the mounting plate 5 and the grinding disc 7 of the same group to rotate synchronously. Then, the mounting box 4, the reduction motor 27, the connecting column 28, the mounting plate 5 and the grinding disc 7 of the same group are driven by the cylinder 2 to move synchronously toward the nut, so that the grinding disc 7 contacts the opposite side of the nut, which can play the role of grinding the nut. Moreover, through the cooperation of the two grinding discs 7, it is convenient for the equipment to grind both sides of the nut at the same time, which is beneficial to improving the grinding efficiency of the nut.

[0038] A support plate 13 is fixedly installed on one side of the box body 1, and a filter frame 14 and an exhaust fan 12 are fixedly installed on the top of the support plate 13, one end of the exhaust fan 12 is connected to the filter frame 14, an air guide scoop 21 is fixedly installed on the inner wall of the top end of the box body 1, and a dust extraction pipe 22 is connected between the bottom end of the air guide scoop 21 and the side opposite to the filter frame 14, a filter assembly is arranged in the filter frame 14, the filter assembly includes a filter plate 9 and dust-proof cotton 10 slidably installed in the filter frame 14, positioning blocks 11 are fixedly installed on both sides of the filter plate 9 and the dust-proof cotton 10, a positioning groove matching the positioning block 11 on the same side is opened on the inner wall of the filter frame 14, a cover plate is hinged on one side of the top end of the filter frame 14, and a sealing gasket is fixedly installed on the bottom end of the cover plate.

[0039] When the equipment is grinding nuts, a large amount of waste chips may be generated. The outer shell generates suction through the exhaust fan 12, so that the waste chips pass through the dust collecting frame 8 and enter the air guide 21. The dust collecting frame 8 is provided with a leak plate 17 to support and stabilize the support column 18, and prevent the worker from accidentally dropping the nut into the air guide 21 when taking it. The waste chips pass through the air guide 21 and enter the dust extraction pipe 22. Then the waste chips enter the filter frame 14. The filter frame 14 cooperates with the filter plate 9 and the dustproof cotton 10 to filter and collect the waste chips, so that the waste chips remain in the dust collecting frame 14. The filter frame 14 helps to prevent waste debris from entering the exhaust fan 12, thereby protecting the exhaust fan 12 and facilitating the subsequent stable use of the exhaust fan 12. The filter plate 9 and the dust-proof cotton 10 are fixed to the positioning grooves on the inner wall of the filter frame 14 through the positioning block 11, which is convenient for the staff to disassemble and clean later, and is beneficial to maintaining the filtering effect of the equipment. The top of the filter frame 14 is provided with a cover plate, which plays a role of sealing the end of the filter frame 14, and the bottom of the cover plate is provided with a sealing gasket, which is beneficial to improve the sealing of the cover plate and the filter frame 14.

[0040] The lower section of the filter frame 14 is provided with an opening, in which a collecting frame 16 is slidably installed, and limit blocks 15 are fixedly installed on both sides of the collecting frame 16, and a limit groove matching the limit block 15 on the same side is provided on the inner side of the opening, and the side walls of the two limit blocks 15 are fixedly sleeved with rubber sleeves, and the collecting frame 16 is hinged with two symmetrically distributed baffles, and the waste chips entering the filter frame 14 enter the collecting frame 16 through the opening, which can collect the waste chips, and the collecting frame 16 is fixed by the limit block 15 and the limit groove provided on the inner side of the opening. It is convenient for the staff to disassemble and clean the waste chips later, and the setting of the rubber sleeve on the side wall of the limit block 15 is conducive to increasing the friction between the limit block 15 and the limit groove on the same side, which is conducive to improving the stability of the installation of the collection frame 16, and the setting of two baffles in the collection frame 16 helps to avoid the waste chips in the collection frame 16 from surging due to suction. When the waste chips need to be cleaned, the staff will pull out the collection frame 16 and then flip the baffle. When the baffle is flipped to the outside of the collection frame 16, it is convenient for the staff to clean the waste chips.

[0041] A cleaning assembly is provided in the air guide scoop 21, and the cleaning assembly includes a support plate 23 fixedly installed in the air guide scoop 21, a rotating rod 26 is rotatably installed on the top of the support plate 23, and a turbine blade 24 is fixedly sleeved on the side wall of the rotating rod 26, and two symmetrically distributed brush plates 25 are fixedly installed on the upper side wall of the rotating rod 26. When the exhaust fan 12 generates suction to collect waste chips, the suction drives the turbine blades 24 to rotate, and the turbine blades 24 drive the rotating rod 26 and the brush plate 25 to rotate synchronously. The brush plate 25 contacts the bottom of the leak plate 17, which can clean the leak plate 17, help avoid blockage of the leak plate 17, and help maintain the passing efficiency of waste chips.

[0042] The implementation principle of the embodiment of the present application is as follows: when the device is in use, the staff places the nut on the support column 18 and fixes it through the clamping assembly. Subsequently, the two cylinders 2 drive the same group of grinding assemblies to move to the side opposite to the nut. The grinding assembly contacts the side opposite to the nut to grind the nut. Moreover, the two groups of grinding assemblies are arranged so that the device can grind both sides of the nut at the same time without manual surface change, which is beneficial to improving the grinding efficiency of the nut. When the device is grinding the nut, a large amount of waste chips may be generated. The outer shell generates suction through the exhaust fan 12, so that the waste chips enter the air guide hopper 2 through the dust collecting frame 8. 1, the dust collecting frame 8 is provided with a leak plate 17 to support and stabilize the support column 18, and prevent the nut from accidentally falling into the air guide hopper 21 when the staff takes it. A cleaning component is provided in the air guide hopper 21 to clean the leak plate 17, which helps to avoid blockage of the leak plate 17 and helps to maintain the efficiency of the equipment in collecting waste chips. The waste chips enter the dust extraction pipe 22 through the air guide hopper 21, and then the waste chips enter the filter frame 14. The filter frame 14 is provided with a filtering component to filter and collect the waste chips, which helps to avoid the waste chips from entering the collection frame 16 and facilitates the subsequent stable use of the exhaust fan 12.

[0043] The above are all preferred embodiments of the present application, and the protection scope of the present application is not limited thereto. Therefore, any equivalent changes made according to the structure, shape, and principle of the present application should be included in the protection scope of the present application.

Claims

1. A fastener grinding tool, comprising a box (1), characterized in that: A protective frame (3) is fixedly mounted on the top of the box body (1), and a dust collecting frame (8) is fixedly mounted on the top of the box body (1), the bottom of the dust collecting frame (8) extends into the box body (1), and a leaking plate (17) is fixedly mounted in the dust collecting frame (8), a supporting column (18) is fixedly mounted on the top of the leaking plate (17), and a clamping assembly is provided between the top of the supporting column (18) and the protective frame (3), cylinders (2) are fixedly mounted on both sides of the protective frame (3), and the piston shafts of the two cylinders (2) are both extended into the protective frame (3), and the ends of the piston shafts of the two cylinders (2) are both provided with grinding assemblies; A support plate (13) is fixedly mounted on one side of the box body (1), and a filter frame (14) and an exhaust fan (12) are fixedly mounted on the top of the support plate (13); one end of the exhaust fan (12) is connected to the filter frame (14); an air guide scoop (21) is fixedly mounted on the inner wall of the top of the box body (1), and a dust extraction pipe (22) is connected between the bottom end of the air guide scoop (21) and a side opposite to the filter frame (14); a filter assembly is arranged in the filter frame (14), and a cleaning assembly is arranged in the air guide scoop (21).

2. A fastener grinding tool according to claim 1, characterized in that: The clamping assembly comprises a supporting clamp (20) fixedly mounted on the top of the supporting column (18); a telescopic rod (6) is fixedly mounted on the inner wall of the top of the protective frame (3); a positioning clamp (19) is fixedly mounted on the end of the telescopic rod (6); two symmetrically distributed positioning rods are fixedly mounted on the bottom of the positioning clamp (19); a positioning hole matching the positioning rod is formed at the top of the supporting clamp (20); two symmetrically distributed stabilizing rods are fixedly mounted on the top of the positioning clamp (19), and the tops of the two stabilizing rods are slidably penetrated through the protective frame (3).

3. The fastener grinding tool according to claim 1, characterized in that: The grinding assembly comprises a mounting box (4) fixedly mounted on the ends of the piston shafts of the two cylinders (2), a reduction motor (27) being fixedly mounted in the two mounting boxes (4), and a connecting column (28) being fixedly mounted on the ends of the output shafts of the two reduction motors (27), the opposite ends of the two connecting columns (28) being rotated to pass through the mounting boxes (4) of the same group, and mounting plates (5) being fixedly mounted on the ends of the two connecting columns (28), and grinding discs (7) being fixedly mounted on the opposite sides of the two mounting plates (5).

4. The fastener grinding tool according to claim 1, characterized in that: The filter assembly comprises a filter plate (9) and dustproof cotton (10) which are slidably mounted in a filter frame (14); positioning blocks (11) are fixedly mounted on both sides of the filter plate (9) and the dustproof cotton (10); a positioning groove matching the positioning block (11) on the same side is formed on the inner wall of the filter frame (14); a cover plate is hingedly mounted on one side of the top end of the filter frame (14); and a sealing gasket is fixedly mounted on the bottom end of the cover plate.

5. The fastener grinding tool according to claim 1, characterized in that: The lower section of the filter frame (14) is provided with an opening, a collection frame (16) is slidably mounted in the opening, limiting blocks (15) are fixedly mounted on both sides of the collection frame (16), and a limiting groove matching the limiting block (15) on the same side is provided on the inner side of the opening.

6. A fastener grinding tool according to claim 5, characterized in that: The side walls of the two limit blocks (15) are fixedly sleeved with rubber sleeves, and the collecting frame (16) is hinged with two symmetrically distributed baffles.

7. The fastener grinding tool according to claim 1, characterized in that: The cleaning assembly comprises a support plate (23) fixedly mounted in the air guide scoop (21); a rotating rod (26) is rotatably mounted on the top of the support plate (23); a turbine blade (24) is fixedly sleeved on the side wall of the rotating rod (26); and two symmetrically distributed brush plates (25) are fixedly mounted on the upper side wall of the rotating rod (26).

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