CN216913326U

CN216913326U - Dustless polishing equipment in metal product surface

Info

Publication number: CN216913326U
Application number: CN202123014226.1U
Authority: CN
Inventors: 张玉平
Original assignee: Foshan Jiuchen Mechanical Equipment Co ltd
Current assignee: Foshan Jiuchen Mechanical Equipment Co ltd
Priority date: 2021-12-03
Filing date: 2021-12-03
Publication date: 2022-07-08
Anticipated expiration: 2031-12-03

Abstract

The utility model discloses a metal product surface dust-free polishing device which comprises a processing table, a supporting frame, a polishing assembly and a dust removal assembly, wherein the supporting frame is arranged on the processing table, the polishing assembly is arranged below the supporting frame, one end of the dust removal assembly is arranged below the processing table, and the other end of the dust removal assembly penetrates through the processing table and is connected with the polishing assembly. The utility model belongs to the technical field of metal processing, and particularly relates to a dust-free polishing device for the surface of a metal product.

Description

Dustless polishing equipment in metal product surface

Technical Field

The utility model belongs to the technical field of metal processing, and particularly relates to a dust-free polishing device for the surface of a metal product.

Background

Because the metal has active chemical properties and is easy to generate chemical reaction with air to generate metal oxide, namely commonly called rust, the metal needs to be polished in the metal processing process, so that the existing metal polishing equipment is continuously innovated and developed, and the existing metal polishing equipment basically meets the requirements of people, but still has some problems. The chips of the existing metal polishing equipment which are polished in the polishing process are easily thrown into the air by the polishing wheel rotating at a high speed, the dust content of a workshop is improved, the production safety is reduced, the life safety of workers is threatened by higher dust content, and the polishing head and a metal product rub at a high speed during polishing and polishing, so that static electricity is generated on the surface of the metal product to adsorb the dust on the surface of the metal product, and further dust removal treatment is needed after polishing is finished, thereby affecting the processing efficiency of the product.

SUMMERY OF THE UTILITY MODEL

In order to solve the problems, the utility model provides the metal product surface dust-free polishing equipment which prevents dust from entering air and removes dust on the metal surface through the dust removal assembly, and fixes a metal product in the polishing process by matching with the polishing assembly, so that the processing efficiency and the processing quality are improved.

In order to realize the functions, the technical scheme adopted by the utility model is as follows: a metal product surface dust-free polishing device comprises a processing table, a supporting frame, a polishing component and a dust removal component, wherein the supporting frame is arranged on the processing table, the polishing component is arranged below the supporting frame, one end of the dust removal component is arranged below the processing table, and the other end of the dust removal component penetrates through the processing table and is connected with the polishing component; the dust removal component comprises an air chamber, an air pipe, an air pumping layer, an air blowing layer, a hydraulic press for push-pull, a movable plate, a one-way valve I, a one-way valve II, an air pumping pipe and an air blowing pipe, wherein the air chamber is arranged below a processing table, one end of the air pipe is connected to the lower wall of the processing table, the other end of the air pipe penetrates through the lower wall of the air chamber and is arranged below the air chamber, the air pumping layer is arranged on one side of the air pipe in the air chamber, the air blowing layer is arranged in the air chamber and is arranged on one side, far away from the air pumping layer, of the air pipe, the hydraulic press for push-pull is arranged below the air pipe, the movable plate is movably arranged at the lower end of the air pipe and is connected to the telescopic end of the hydraulic press for push-pull, the one-way valve I is arranged at the upper end of the side, close to the air pumping layer, of the air pipe and is arranged in the air chamber, the one-way valve II only enables air to enter the air pipe from the air pipe, one end of the exhaust pipe is connected with the upper end of the side surface of the air chamber close to the air exhaust layer, the other end of the exhaust pipe is connected with the polishing component, in the process of dust removal cleaning, the hydraulic press for push-pull is connected with an external power supply, the hydraulic press for push-pull is started, when the hydraulic press for push-pull drives the movable plate to move downwards, the pressure above the movable plate in the air pipe is reduced, due to the arrangement of the one-way valve I, air in the exhaust layer enters the air pipe, the pressure in the exhaust layer is reduced, external air enters the exhaust layer through the exhaust pipe to balance the pressure, therefore, the exhaust pipe drives dust generated in the polishing component in the polishing process to enter the exhaust layer of the air chamber in the process of air exhaust, the movable plate for dust removal in the polishing process is realized, and when the hydraulic press for push-pull is driven to move upwards, the pressure intensity above the movable plate in the air pipe is increased, because of the arrangement of the check valve II, the air in the air pipe enters the air blowing layer, the pressure intensity in the air blowing layer is increased, in order to balance the pressure intensity of the air blowing layer, the air is discharged out of the air blowing layer through the air blowing pipe, so that the air cleans dust attached to the metal surface in the discharging process on one hand, and blows the dust to the direction of the air exhaust pipe on the other hand, the dust is conveniently pumped out when the air exhaust pipe exhausts the air, meanwhile, the blown air accelerates the flow of the air around the polishing equipment, the temperature reduction effect is realized on the polishing equipment, through the arrangement of the dust removal component, on the one hand, the dust removal process of raising the dust in the polishing process is realized, the dust is prevented from entering the air, the dust quantity in a workshop is reduced, the production safety is improved, on the other hand, the cleaning effect is realized on the dust attached to the metal surface, and the process of cleaning the metal surface after polishing is omitted, the processing efficiency is improved while the workload of workers is reduced.

In order to realize the polishing process, the polishing component comprises a hydraulic machine for lifting, a support plate, a motor for polishing, a rotating rod, a polishing head, a sliding groove, a sliding plate, a connecting spring, a support block, a movable groove, a support spring, a movable plate, a threaded hole and a threaded rod, the hydraulic machine for lifting is arranged below the support frame, the support plate is arranged below the telescopic end of the hydraulic machine for lifting, the motor for polishing is arranged at the middle position below the support plate, the rotating rod is arranged at the output end of the motor for polishing, the polishing head is connected with the rotating rod, the sliding groove is uniformly arranged below the support plate, one end of the sliding plate is movably arranged in the sliding groove, the other end of the sliding plate is arranged below the support plate, the connecting spring is arranged in the sliding groove and is arranged at one side of the polishing head close to the support plate, the support block is uniformly arranged at the end part of the support plate, the support block is arranged at one side of the sliding groove far away from the polishing head, and the movable groove is arranged at the lower end of the side of the sliding plate close to the support block, the support spring is arranged at the upper end in the movable groove, one end of the movable plate is movably arranged in the movable groove, the other end of the movable plate is arranged below the sliding plate, the movable plate is connected with the support spring, one ends, far away from the air chamber, of the exhaust pipe and the air blowing pipe are connected with the movable plate, the threaded hole is formed in the support block, the threaded rod penetrates through the threaded hole, in the polishing process, the threaded rod is rotated according to the size of the metal volume, the threaded rod is in threaded connection with the threaded hole, therefore, the threaded rod is matched with the connection spring to drive the sliding plate to move along the sliding groove in the rotating process, the sliding plate drives the movable plate to move through the support spring, when the movable plate moves to the position above the edge of the metal product, the threaded rod is stopped to rotate, the hydraulic machine for lifting is connected with an external power supply, the hydraulic machine for lifting is started, the hydraulic machine for lifting drives the support plate to move downwards, the support plate is driven to move downwards through the movable plate, the movable plate is firstly contacted with the metal surface, then the support plate is continuously moved downwards, the polishing head stops descending after being contacted with the metal product, the motor for polishing is connected with an external power supply, the motor for polishing is started, the motor for polishing drives the rotating rod to rotate, the rotating rod drives the polishing head to rotate, the polishing head polishes the metal product in the rotating process, the movable plate generates pressure on the support spring at the moment, the movable plate downwards presses the metal product by utilizing the elasticity of the support spring so as to realize the fixing effect on the metal product, meanwhile, a narrow incomplete closed space is formed between the sliding plate and the movable plate, the dust in the polishing process is prevented from being diffused, and through the arrangement of the polishing assembly, on one hand, the fixing effect on the metal product is realized, and the metal product is prevented from being displaced in the polishing process to influence the polishing quality, on the other hand, the auxiliary dust removal assembly collects dust, and is more favorable for complete dust removal.

The lower end of the air pipe is symmetrically provided with limiting blocks, so that the movable plate is prevented from being separated from the air pipe in the moving down process.

Furthermore, a protection net is arranged on the side, close to the first check valve, in the air exhaust layer, so that the first check valve is prevented from being blocked by dust.

Preferably, the exhaust pipe and the blowing pipe are telescopic hoses, so that the length of the exhaust pipe and the blowing pipe can be conveniently adjusted along with the lifting of the movable plate, and the normal operation of the dust removal assembly is ensured.

The utility model adopts the structure to obtain the following beneficial effects: the dust-free polishing equipment for the surface of the metal product has the advantages that due to the arrangement of the dust removal assembly, on one hand, the dust removal process of raising dust in the polishing process is realized, the dust is prevented from entering the air, the dust amount in a workshop is reduced, the production safety is improved, on the other hand, the dust adhered to the metal surface is cleaned, the process of cleaning the metal surface after polishing is omitted, the workload of workers is reduced, the processing efficiency is improved, by means of the arrangement of the polishing assembly, on the one hand, the fixing effect of the metal product is realized, the metal product is prevented from being displaced in the polishing process to influence the polishing quality, on the other hand, the dust collection of the dust removal assembly is assisted, the complete dust removal is facilitated, the limiting blocks are symmetrically arranged at the lower end of the air pipe, the movable plate is prevented from being separated from the air pipe in the moving down process, and the protection net is arranged on the side close to the one-way valve in the air exhaust layer, the dust is prevented from blocking the one-way valve, in addition, the air exhaust pipe and the air blowing pipe are telescopic hoses, so that the length can be conveniently adjusted along with the lifting of the movable plate, and the normal operation of the dust removal assembly is ensured.

Drawings

FIG. 1 is a schematic view of the overall structure of the metal product surface dust-free polishing device of the present embodiment;

fig. 2 is an enlarged view of a point a in fig. 1.

The polishing device comprises a processing table 1, a processing table 2, a supporting frame 3, a polishing component 4, a dust removal component 5, an air chamber 6, an air pipe 7, an air exhaust layer 8, an air blowing layer 9, a hydraulic press for pushing and pulling 10, a movable plate 11, a one-way valve I, a one-way valve II, a one-way valve 13, an air exhaust pipe 14, an air blowing pipe 15, a hydraulic press for lifting 16, a supporting plate 17, a motor for polishing 18, a rotating rod 19, a polishing head 20, a sliding groove 21, a sliding plate 22, a connecting spring 23, a supporting block 24, a movable groove 25, a supporting spring 26, a movable plate 27, a threaded hole 28, a threaded rod 29, a limiting block 30 and a protective net.

Detailed Description

The technical solutions of the present invention will be described clearly and completely with reference to the accompanying drawings, and it should be understood that the described embodiments are some, but not all embodiments of the present invention. All other embodiments, which can be derived by a person skilled in the art from the embodiments given herein without making any creative effort, shall fall within the protection scope of the present invention.

In the description of the present invention, it should be noted that the terms "center", "upper", "lower", "left", "right", "vertical", "horizontal", "inner", "outer", etc., indicate orientations or positional relationships based on the orientations or positional relationships shown in the drawings, and are only for convenience of description and simplicity of description, but do not indicate or imply that the device or element being referred to must have a particular orientation, be constructed and operated in a particular orientation, and thus, should not be construed as limiting the present invention. Furthermore, the terms "first," "second," and "third" are used for descriptive purposes only and are not to be construed as indicating or implying relative importance. The present invention will be described in further detail with reference to the accompanying drawings.

As shown in fig. 1 and 2, the dust-free polishing device for the surface of the metal product comprises a processing table 1, a support frame 2, a polishing component 3 and a dust removal component 4, wherein the support frame 2 is arranged on the processing table 1, the polishing component 3 is arranged under the support frame 2, one end of the dust removal component 4 is arranged under the processing table 1, and the other end of the dust removal component penetrates through the processing table 1 and is connected with the polishing component 3.

As shown in figure 1, the dust removing component 4 comprises an air chamber 5, an air pipe 6, an air extracting layer 7, an air blowing layer 8, a hydraulic press 9 for push-pull, a movable plate 10, a one-way valve I11, a one-way valve II 12, an air extracting pipe 13 and an air blowing pipe 14, wherein the air chamber 5 is arranged below a processing table 1, one end of the air pipe 6 is connected with the lower wall of the processing table 1, the other end of the air pipe penetrates through the lower wall of the air chamber 5 and is arranged below the air chamber 5, the air extracting layer 7 is arranged at one side of the air pipe 6 in the air chamber 5, the air blowing layer 8 is arranged at one side of the air pipe 6 far away from the air extracting layer 7, the hydraulic press 9 for push-pull is arranged below the air pipe 6, the movable plate 10 is movably arranged at the lower end of the air pipe 6 and is connected with the telescopic end of the hydraulic press 9 for push-pull, the one-way valve I11 is arranged at the upper end of the side of the air pipe 6 close to the air extracting layer 7 and is arranged in the air chamber 5, the one-way valve I11 can only enable air to enter the air pipe 6 from the outside the air pipe 6, the air pipe 6 and is arranged at the upper end of the side of the air blowing layer 8 and is arranged in the air chamber 5, the second one-way valve 12 only enables air to enter the air pipe 6 from the air pipe 6, one end of the air exhaust pipe 13 is connected to the upper end of the side surface of the air chamber 5 close to the air exhaust layer 7, the other end of the air exhaust pipe is connected to the polishing component 3, one end of the air blow pipe 14 is connected to the upper end of the side surface of the air chamber 5 close to the air blow layer 8, the other end of the air blow pipe is connected to the polishing component 3, in the process of dust removal and cleaning, the hydraulic press 9 for push-pull is connected with an external power supply, the hydraulic press 9 for push-pull is started, when the hydraulic press 9 for push-pull drives the moving plate 10 to move downwards, the pressure above the moving plate 10 in the air pipe 6 is reduced, due to the arrangement of the first one-way valve 11, the air in the air exhaust layer 7 enters the air pipe 6, the pressure in the air exhaust layer 7 is reduced, the external air enters the air exhaust layer 7 through the air exhaust pipe 13 to balance the pressure, therefore, the air exhaust pipe 13 drives the polishing component 3 to generate dust in the polishing process to enter the air exhaust layer 7 in the air chamber 5, when the movable plate 10 is driven by the hydraulic press 9 to move upwards by pushing and pulling, the pressure above the movable plate 10 in the air pipe 6 is increased, because of the arrangement of the check valve II 12, the air in the air pipe 6 enters the air blowing layer 8, the pressure in the air blowing layer 8 is increased, in order to balance the pressure of the air blowing layer 8, the air is discharged out of the air blowing layer 8 through the air blowing pipe 14, therefore, the air cleans the dust attached to the metal surface in the discharging process on one hand, on the other hand, the dust is blown to the direction of the air suction pipe 13, the dust is conveniently pumped out when the air suction pipe 13 pumps air, meanwhile, the blown air accelerates the flow of the air around the polishing equipment, the temperature reduction effect is achieved for the polishing equipment, through the arrangement of the dust removal component 4, on the one hand, the dust removal process of the dust raised in the polishing process is achieved, the dust is prevented from entering the air, and the dust amount in a workshop is reduced, with the security of improving production, on the other hand plays the clearance effect to the dust that adheres to the metal surface, saves the process of clearance metal surface after the polishing, improves machining efficiency when lightening workman work load, and exhaust tube 13 and gas blow pipe 14 are scalable hose in addition, are convenient for along with the lift adjustment length of fly leaf 26, guarantee dust removal component 4's normal operating.

As shown in fig. 1 and fig. 2, the polishing assembly 3 includes a lifting hydraulic press 15, a support plate 16, a polishing motor 17, a rotating rod 18, a polishing head 19, a sliding groove 20, a sliding plate 21, a connecting spring 22, a support block 23, a movable groove 24, a support spring 25, a movable plate 26, a threaded hole 27 and a threaded rod 28, the lifting hydraulic press 15 is disposed under the support frame 2, the support plate 16 is disposed under the telescopic end of the lifting hydraulic press 15, the polishing motor 17 is disposed at a middle position under the support plate 16, the rotating rod 18 is disposed at an output end of the polishing motor 17, the polishing head 19 is connected to the rotating rod 18, the sliding groove 20 is uniformly disposed under the support plate 16, one end of the sliding plate 21 is movably disposed in the sliding groove 20 and the other end is disposed under the support plate 16, the connecting spring 22 is disposed in the sliding groove 20 and is disposed on a side of the sliding plate 21 close to the polishing head 19, the support block 23 is uniformly disposed at an end of the support plate 16, the support block 23 is disposed on a side of the sliding groove 20 far from the polishing head 19, the movable groove 24 is arranged at the lower end of the side surface of the sliding plate 21 close to the supporting block 23, the supporting spring 25 is arranged at the upper end in the movable groove 24, one end of the movable plate 26 is movably arranged in the movable groove 24, the other end of the movable plate 26 is arranged below the sliding plate 21, the movable plate 26 is connected to the supporting spring 25, one end of the air exhaust pipe 13 and one end of the air blowing pipe 14 far away from the air chamber 5 are connected to the movable plate 26, the threaded hole 27 is arranged on the supporting block 23, the threaded rod 28 penetrates through the threaded hole 27, in the polishing process, according to the size of the metal volume, the threaded rod 28 is rotated, because the threaded rod 28 is in threaded connection with the threaded hole 27, the threaded rod 28 is matched with the connecting spring 22 to drive the sliding plate 21 to move along the sliding groove 20 in the rotating process, the sliding plate 21 drives the movable plate 26 to move through the supporting spring 25, when the movable plate 26 moves to the upper part of the edge of the metal product, the threaded rod 28 is stopped to connect the hydraulic machine 15 for lifting with an external power supply, starting the hydraulic lifting machine 15, driving the support plate 16 to move downwards by the hydraulic lifting machine 15, driving the movable plate 26 to move downwards by the support plate 16 through the sliding plate 21, enabling the movable plate 26 to contact with the metal surface firstly, then continuing to move the support plate 16 downwards, stopping descending after the polishing head 19 contacts with the metal product, connecting the motor 17 for polishing with an external power supply, starting the motor 17 for polishing, driving the rotating rod 18 to rotate by the motor 17 for polishing, driving the polishing head 19 to rotate by the rotating rod 18, polishing the metal product by the polishing head 19 in the rotating process, generating pressure on the support spring 25 by the movable plate 26 at the moment, utilizing the elastic force of the support spring 25 to enable the movable plate 26 to have downward pressure on the metal product so as to realize the fixing effect on the metal product, and simultaneously forming a narrow incomplete closed space between the sliding plate 21 and the movable plate 26, the dust to among the polishing process also plays the process of stopping its diffusion, through polishing subassembly 3's setting, realizes the fixed action to metal product on the one hand, prevents that metal product from taking place the displacement and influencing polishing quality in polishing process, and the supplementary 4 gathering dusts of dust removal subassembly on the other hand more are favorable to removing dust completely.

As shown in fig. 1, the lower end of the air duct 6 is symmetrically provided with a stopper 29 to prevent the movable plate 26 from separating from the air duct 6 during the downward movement.

As shown in FIG. 1, a protection net 30 is arranged on the side, close to the first check valve 11, in the air-extracting layer 7 to prevent dust from blocking the first check valve 11.

When the polishing machine is used specifically, according to the size of the metal volume, the threaded rod 28 is rotated, because the threaded rod 28 is in threaded connection with the threaded hole 27, the threaded rod 28 is matched with the connecting spring 22 to drive the sliding plate 21 to move along the sliding groove 20 in the rotating process, the sliding plate 21 drives the movable plate 26 to move through the supporting spring 25, when the movable plate 26 moves to the upper side of the edge of the metal product, the threaded rod 28 is stopped to rotate, the hydraulic machine 15 for lifting is connected with an external power supply, the hydraulic machine 15 for lifting is started to drive the supporting plate 16 to move downwards, the supporting plate 16 drives the movable plate 26 to move downwards through the sliding plate 21, the movable plate 26 is firstly contacted with the metal surface and then continuously moves the supporting plate 16 downwards, when the polishing head 19 is contacted with the metal product, the polishing motor 17 is stopped to descend, the polishing motor 17 is connected with the external power supply, the polishing motor 17 is started, and the polishing motor 17 drives the rotating rod 18 to rotate, the rotating rod 18 drives the polishing head 19 to rotate, the polishing head 19 polishes the metal product in the rotating process, at the moment, the movable plate 26 generates pressure on the supporting spring 25, the movable plate 26 has downward pressure on the metal product by utilizing the elastic force of the supporting spring 25 so as to realize the fixing effect on the metal product, meanwhile, a narrow incomplete closed space is formed between the sliding plate 21 and the movable plate 26, the dust in the polishing process is prevented from diffusing, then the hydraulic press 9 for push-pull is connected with an external power supply, the hydraulic press 9 for push-pull is started, when the hydraulic press 9 for push-pull drives the movable plate 10 to move downwards, the pressure above the movable plate 10 in the air pipe 6 is reduced, due to the arrangement of the one-way valve I11, the air in the air exhaust layer 7 enters the air pipe 6, the pressure in the air exhaust layer 7 is reduced, the external air enters the air exhaust layer 7 through the air exhaust pipe 13 to balance the pressure, therefore, the exhaust pipe 13 carries the dust generated by the polishing component 3 in the polishing process into the exhaust layer 7 of the air chamber 5 in the exhaust process so as to realize the dust removal process of the dust in the polishing process, when the moving plate 10 is driven by the hydraulic press 9 for push-pull to move upwards, the pressure intensity above the moving plate 10 in the air duct 6 is increased, due to the arrangement of the second check valve 12, the air in the air pipe 6 enters the air blowing layer 8, so that the pressure in the air blowing layer 8 is increased to balance the pressure of the air blowing layer 8, the air is discharged out of the air blowing layer 8 through the air blowing pipe 14, therefore, in the process of discharging, the gas cleans the dust adhered to the metal surface on one hand, and blows the dust to the direction of the exhaust tube 13 on the other hand, so that the dust is conveniently pumped out when the exhaust tube 13 exhausts, meanwhile, the blown gas accelerates the flow of the gas around the polishing equipment, and the polishing equipment is cooled.

The present invention and its embodiments have been described above, and the description is not intended to be limiting, and the drawings are only one embodiment of the present invention, and the actual structure is not limited thereto. In summary, those skilled in the art should appreciate that they can readily use the disclosed conception and specific embodiments as a basis for designing or modifying other structures for carrying out the same purposes of the present invention without departing from the spirit and scope of the utility model as defined by the appended claims.

Claims

1. The utility model provides a dustless burnishing device in metal product surface which characterized in that: the polishing device comprises a processing table, a supporting frame, a polishing assembly and a dust removal assembly, wherein the supporting frame is arranged on the processing table, the polishing assembly is arranged below the supporting frame, one end of the dust removal assembly is arranged below the processing table, and the other end of the dust removal assembly penetrates through the processing table and is connected with the polishing assembly; the dust removal component comprises an air chamber, an air pipe, an air pumping layer, an air blowing layer, a hydraulic press for push-pull, a movable plate, a one-way valve I, a one-way valve II, an air pumping pipe and an air blowing pipe, wherein the air chamber is arranged below a processing table, one end of the air pipe is connected to the lower wall of the processing table, the other end of the air pipe penetrates through the lower wall of the air chamber and is arranged below the air chamber, the air pumping layer is arranged on one side of the air pipe in the air chamber, the air blowing layer is arranged in the air chamber and is arranged on one side, far away from the air pumping layer, of the air pipe, the hydraulic press for push-pull is arranged below the air pipe, the movable plate is movably arranged at the lower end of the air pipe and is connected to the telescopic end of the hydraulic press for push-pull, the one-way valve I is arranged at the upper end of the side, close to the air pumping layer, of the air pipe and is arranged in the air chamber, the one-way valve II only enables air to enter the air pipe from the air pipe, the exhaust tube one end is connected in the side upper end that the air chamber is close to the gas layer and the other end is connected in polishing subassembly, gas blow pipe one end is connected in the side upper end that the air chamber is close to the gas layer and the other end is connected in polishing subassembly.

2. A metal product surface dust-free polishing apparatus according to claim 1, wherein: the polishing component comprises a hydraulic machine for lifting, a support plate, a motor for polishing, a rotating rod, a polishing head, a sliding groove, a sliding plate, a connecting spring, a support block, a movable groove, a support spring, a movable plate, a threaded hole and a threaded rod, the hydraulic machine for lifting is arranged below the support frame, the support plate is arranged below the telescopic end of the hydraulic machine for lifting, the motor for polishing is arranged at the middle position below the support plate, the rotating rod is arranged at the output end of the motor for polishing, the polishing head is connected with the rotating rod, the sliding groove is uniformly arranged below the support plate, one end of the sliding plate is movably arranged in the sliding groove, the other end of the sliding plate is arranged below the support plate, the connecting spring is arranged in the sliding groove and is arranged at one side of the sliding plate close to the polishing head, the support block is uniformly arranged at the end part of the support plate, the support block is arranged at one side of the sliding groove far away from the polishing head, and the movable groove is arranged at the lower end of the side of the sliding plate close to the support block, the supporting spring is arranged at the upper end in the movable groove, one end of the movable plate is movably arranged in the movable groove, the other end of the movable plate is arranged below the sliding plate, the movable plate is connected to the supporting spring, one ends, far away from the air chamber, of the exhaust pipe and the air blowing pipe are connected to the movable plate, the threaded hole is formed in the supporting block, and the threaded rod penetrates through the threaded hole.

3. A metal product surface dust-free polishing apparatus according to claim 2, wherein: the lower end of the air pipe is symmetrically provided with limiting blocks.

4. A metal product surface dust-free polishing apparatus according to claim 3, wherein: and a protection net is arranged on the side, close to the one-way valve I, in the air pumping layer.

5. The metal product surface dust-free polishing device according to claim 4, wherein: the air exhaust pipe and the air blowing pipe are telescopic hoses.