CN113681425A

CN113681425A - Metal product processing grinding device

Info

Publication number: CN113681425A
Application number: CN202111158400.1A
Authority: CN
Inventors: 吴义宙
Original assignee: Nantong Tongli Precision Machinery Co ltd
Current assignee: Nantong Tongli Precision Machinery Co ltd
Priority date: 2021-09-30
Filing date: 2021-09-30
Publication date: 2021-11-23
Anticipated expiration: 2041-09-30
Also published as: CN113681425B

Abstract

The invention belongs to the technical field of metal product polishing, and discloses a metal product processing and polishing device which comprises a device outer cover, a servo motor and a cabinet, wherein the device outer cover is fixedly arranged below the cabinet, the servo motor is fixedly arranged inside the cabinet, a gear module is arranged inside the device outer cover and is in transmission connection with the servo motor through a main shaft, and an inner cavity of the device outer cover is divided into two partial inner cavities of a first cylindrical bin and a second cylindrical bin, and the two partial inner cavities are communicated. The gear module is used for simultaneously driving the elastic turntable and the fan, and the diameter of the gear of the fan is relatively small, so that a larger angular speed can be provided for the fan, the fan can rotate faster, the fan is integrated into the inner cavity of the device outer cover, an air exhaust fan does not need to be arranged outside, the occupied area of each device is reduced, the whole device is lightened and integrated, and the working stability is also improved.

Description

Metal product processing grinding device

Technical Field

The invention belongs to the technical field of metal product polishing, and particularly relates to a metal product processing and polishing device.

Background

The water of metal products covers a wide range, and comprises sheet metal parts, rotating shafts or some other metal parts, and after the metal parts are forged or cast, the surfaces of the metal parts are covered with a thick layer of rust due to oxidation reaction, and the rust needs to be polished off before the metal products leave a factory.

The existing polishing device for metal products, for example, when polishing a sheet metal part, the sheet metal part is placed on a conveying belt, the sheet metal part is conveyed to the lower part of the polishing device along with the conveying belt, the polishing device can polish the conveyed sheet metal part, the existing polishing device has certain defects, for example, in the polishing process, rust dust can be splashed and scattered all around when rust passes through a brush of a copper wire brush, the environment in a workshop is badly affected, the existing dust gas treatment device basically covers a polishing position inside, and dust scattered into a cavity is extracted and collected, so that the collection efficiency is very low, the leakage phenomenon still exists, the best mode is not that the rust dust is collected in a targeted manner at the source, and the scheme is provided by the invention.

And because the scraping rust of brush hair, a large amount of rusts of adhesion can be remained on its surface, and these rusts need carry out timely washing clearance, otherwise wet after easy at the surface adhesion of brush hair firm, not only seriously influence the efficiency of polishing, the cleaning work of later stage self also can be very inconvenient.

Disclosure of Invention

The invention aims to provide a metal product processing and polishing device to solve the problems in the background technology.

In order to achieve the above purpose, the invention provides the following technical scheme: a metal product processing and polishing device comprises a device outer cover, a servo motor and a cabinet, wherein the device outer cover is fixedly arranged below the cabinet, the servo motor is fixedly arranged inside the cabinet, a gear module is arranged inside the device outer cover and is in transmission connection with the servo motor through a main shaft, an inner cavity of the device outer cover is divided into a first cylindrical bin and a second cylindrical bin, the two inner cavities are communicated, an elastic turntable in transmission connection with the gear module is arranged at the bottom of the inner cavity of the first cylindrical bin, a bottom cover is fixedly arranged at the bottom of the device outer cover, a mounting sleeve is fixedly arranged at the bottom of the elastic turntable, the elastic turntable and the mounting sleeve are communicated up and down, a polishing brush is fixedly arranged on the inner side of the mounting sleeve and penetrates through the bottom cover to extend out of the first cylindrical bin downwards, a fan in transmission connection with the gear module is arranged in the second cylindrical bin, the gear module consists of three gears, wherein the gear positioned in the middle is in transmission connection with a main shaft of the motor, the other two gears are in transmission connection with the elastic turntable and the fan respectively, and the gear in transmission connection with the fan has a smaller diameter than the other two gears, so that a larger angular speed can be provided for the fan;

the elastic turntable comprises an inner fixed cover, a first rubber ring, an outer snap ring and moving wheels, wherein the periphery of the inner fixed cover is fixedly sleeved with the first rubber ring, the periphery of the first rubber ring is fixedly sleeved with the outer snap ring, three moving wheels are arranged at equal angles on the periphery of the outer snap ring, the inner fixed cover is connected with a transmission shaft of a gear module, the installation sleeve is fixedly installed at the bottom of the outer snap ring, a second rubber ring is attached to the inner cavity wall of the bottom cover, a fixed block is arranged on the inner wall of the second rubber ring, the moving wheels are in rolling contact with the inner wall of the second rubber ring and are in contact with the fixed block in the rolling process, and in the high-speed rotating process of the elastic turntable, the moving wheels arranged on the surface of the outer snap ring can pass through the fixed block on the inner wall of the second rubber ring, and can push against the moving wheels to compress the first rubber ring on the inner side because the fixed block is a bulge inwards, the second rubber ring compression can be being pressed to two other removal wheels, and certain radial skew can take place for removal wheel itself, but this skew can not take place for the internal fixation lid, and when removing the wheel and breaking away from the fixed block, the second rubber ring can resume into original state by the compressed part of two other removal wheels, and first rubber ring also can the reconversion, cause the whole original state that resumes of outer snap ring, because installation cover and outer snap ring fixed connection, so the installation cover can drive the brush of polishing together skew, from this circulation, every round of rotation of elastic turntable, all can the skew cubic, elastic turntable drives installation cover and the brush of polishing and forms a high frequency micro-amplitude vibrations, shake off the rust mark that adheres to on the brush hair.

Preferably, three layers of circular through holes are formed in the elastic turntable and the mounting sleeve from inside to outside, the circular through holes of the elastic turntable and the circular through holes of the mounting sleeve are vertically aligned up and down, and the hole diameters of the circular through holes are consistent.

Preferably, the diameters of the three layers of circular through holes formed on the elastic turntable and the mounting sleeve are gradually reduced from inside to outside, the total area of the circular through holes at the innermost layer on the elastic turntable and the mounting sleeve is larger than that of the circular through holes at the middle layer, the total area of the circular through holes on the outermost layer of the elastic turntable and the mounting sleeve is the minimum, the circular through holes are actually air inlets, the three layers are arranged, the total area of each layer is different, the design purpose is that the circular through hole at the inner side is used as a main air inlet, thus the airflow close to the outside is integrally folded towards the inner side, namely, a large amount of airflow moves from outside to inside, so that the rust dust which is about to be thrown out by the bristles is pushed back by the airflow and then enters the first cylindrical bin through the circular through holes, and when the airflow passes through the brush hair from outside to inside, the rust dust raised on the path can be taken away together.

Preferably, fixed mounting has the tuber pipe between a cylinder storehouse and No. two cylinder storehouses, the inner chamber in a cylinder storehouse and No. two cylinder storehouses passes through the tuber pipe intercommunication, and the height that highly is greater than the fan setting of tuber pipe, therefore the fan when exhausting downwards, can follow the tuber pipe and admit air, and the air current comes from and enters into a cylinder storehouse through polish brush, installation cover and elasticity carousel, and the rethread tuber pipe enters into No. two cylinder storehouses.

Preferably, the base is installed to the bottom of No. two cylinder storehouse inner chambers, the bottom in No. two cylinder storehouse outsides is equipped with the connecting pipe, and the base sets up under the fan, and the inboard bottom surface of connecting pipe and the bottom surface height of base keep equal, consequently can not bring the airflow in the air current flow process because the difference in height changes.

Preferably, the top view of base is the circular that is adapted to No. two cylinder storehouse inner chambers, the longitudinal section of base is right triangle, right triangle's top is just facing towards the connecting pipe, in this embodiment, the top surface of base just presents circular inclined plane, and its lower edge just can be towards the connecting pipe, so when the fan blows off dusty gas down, the air current can flow down along the inclined plane of base and finally flow away from the connecting pipe, breaks away from No. two cylinder storehouse inner chambers, and the base plays an effect to the air current direction, from reducing the air current offset in No. two cylinder storehouse inner chambers, improves exhaust efficiency.

Preferably, an external air passage of the connecting pipe is communicated to an external dust-gas separating device or a filtering device, and dust-containing gas discharged from the connecting pipe is introduced into the dust-gas separating device or the filtering device to remove harmful rust and dust therein, which is the content of the prior art and is not shown in the figure, but can be obtained by a person skilled in the art without creative work, and the description is omitted.

Preferably, the middle part of fixed block is an arc uplift, the both sides of fixed block are the sunken transition curved surface of arc, and the whole mellow and smooth smoothness in fixed block surface, the fixed block volume ratio is smaller, too big according to actual conditions also can not design, the peak of arc uplift must not exceed one fifth of first rubber ring width, otherwise will remove and will take place the great amplitude vibration of high frequency when the wheel rolls, exceed controllable scope, can cause harmful impact to the countershaft, bring the consequence of equipment damage, the arc design that the fixed block overall surface appears can reduce the resistance that removes the wheel by a wide margin, smooth surface makes and removes and can be more smooth and easy when the wheel rolls.

Preferably, the below of rack is equipped with the conveyer belt, the both sides fixed mounting at conveyer belt top has the mounting bracket, the slide rail is installed at the top of mounting bracket and the slider of rack bottom slides and is connected, and the slider is really a pulley module, through installing the motor drive in the rack side to make whole grinding device can carry out the horizontal line position for the conveyer belt, make grinding device cooperation conveyer belt can cover the whole upper surface of sheet metal component to the conveying of metal sheet metal component, be used for accomplishing and polish comprehensively.

The invention has the following beneficial effects:

1. the gear module is used for simultaneously driving the elastic turntable and the fan, and the diameter of the gear of the fan is relatively small, so that a larger angular speed can be provided for the fan, the fan can rotate faster, the fan is integrated into the inner cavity of the device outer cover, an air exhaust fan does not need to be arranged outside, the occupied area of each device is reduced, the whole device is lightened and integrated, and the working stability is also improved.

2. According to the invention, the first cylindrical bin and the second cylindrical bin are arranged in the device outer cover, and the elastic rotary disc and the mounting sleeve are communicated up and down, so that the fan works in the second cylindrical bin to exhaust air downwards, the air can be exhausted from the first cylindrical bin through the air pipe, due to the negative pressure effect in the first cylindrical bin, the first cylindrical bin is exhausted outwards through the elastic rotary disc and the mounting sleeve, the elastic rotary disc and the mounting sleeve are arranged right above the grinding brush, so that rust erased by the grinding brush can be directly sucked into the first cylindrical bin, the rust is prevented from splashing everywhere, centralized treatment is realized, and the dust raising phenomenon is avoided at the source.

3. The invention arranges the second rubber ring and the fixed block on the inner wall of the bottom cover, the first rubber ring is clamped between the inner fixed cover and the outer clamping ring, in the process of high-speed rotation of the elastic turntable, the moving wheels arranged on the surface of the outer clamping ring can pass through the fixed block on the inner wall of the second rubber ring, because the fixed block is a bulge inwards, the fixed block can push the moving wheels to compress the first rubber ring at the inner side thereof, the other two moving wheels can press the second rubber ring to compress, and the moving wheels can generate certain radial offset, because the mounting sleeve is fixedly connected with the outer clamping ring, the mounting sleeve can drive the polishing brush to offset together, thereby circulating, the elastic turntable can offset three times when rotating for each circle, the elastic turntable drives the mounting sleeve and the polishing brush to form high-frequency micro-amplitude vibration, rust adhered on the bristles is shaken off, and the rust is prevented from accumulating and adhering on the bristles of the polishing brush, real-time processing is realized.

Drawings

FIG. 1 is a schematic view of the overall mechanism of the present invention;

FIG. 2 is an internal cross-sectional view of the housing of the device of the present invention;

FIG. 3 is a schematic mechanical diagram of the gear module of the present invention;

FIG. 4 is a schematic view of the internal structure of the second cylindrical bin of the present invention;

FIG. 5 is a disassembled view of the elastic turntable structure of the present invention;

FIG. 6 is a top view of the flexible disk of the present invention;

fig. 7 is a structural sectional view of the elastic rotary disk of the invention.

In the figure: 1. a device housing; 101. a first cylindrical bin; 102. a second cylindrical bin; 103. a base; 104. a connecting pipe; 2. a servo motor; 3. a gear module; 4. a main shaft; 5. an elastic turntable; 51. an inner fixed cover; 52. a first rubber ring; 53. an outer snap ring; 54. a moving wheel; 6. installing a sleeve; 7. polishing a brush; 8. an air duct; 9. a fan; 10. a bottom cover; 11. a second rubber ring; 1101. a fixed block; 12. a cabinet; 13. a conveyor belt; 14. and (7) mounting frames.

Detailed Description

The technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only a part of the embodiments of the present invention, and not all of the embodiments. 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.

As shown in fig. 1 to 7, in the embodiment of the invention, a metal product processing and polishing device comprises a device housing 1, a servo motor 2 and a cabinet 12, wherein the device housing 1 is fixedly installed below the cabinet 12, the servo motor 2 is fixedly installed inside the cabinet 12, a gear module 3 is arranged inside the device housing 1, the gear module 3 is in transmission connection with the servo motor 2 through a main shaft 4, an inner cavity of the device housing 1 is divided into a first cylindrical bin 101 and a second cylindrical bin 102, the two inner cavities are communicated, an elastic turntable 5 in transmission connection with the gear module 3 is arranged at the bottom of the inner cavity of the first cylindrical bin 101, a bottom cover 10 is fixedly installed at the bottom of the device housing 1, a mounting sleeve 6 is fixedly installed at the bottom of the elastic turntable 5, the elastic turntable 5 and the mounting sleeve 6 are both vertically communicated, a polishing brush 7 is fixedly installed on the inner side of the mounting sleeve 6, and the polishing brush 7 penetrates through the bottom cover 10 and extends out of the first cylindrical bin 101, the second cylindrical bin 102 is internally provided with a fan 9 in transmission connection with the gear module 3, the gear module 3 consists of three gears, wherein the gear positioned in the middle is in transmission connection with a main shaft of the motor, the other two gears are respectively in transmission connection with the elastic turntable 5 and the fan 9, and the gear in transmission connection with the fan 9 has a smaller diameter than the other two gears, so that a larger angular speed can be provided for the fan 9;

the elastic turntable 5 comprises an inner fixed cover 51, a first rubber ring 52, an outer snap ring 53 and a moving wheel 54, the first rubber ring 52 is fixedly sleeved on the periphery of the inner fixed cover 51, the outer snap ring 53 is fixedly sleeved on the periphery of the first rubber ring 52, three moving wheels 54 are arranged on the periphery of the outer snap ring 53 at equal angles, the inner fixed cover 51 is connected with a transmission shaft of the gear module 3, a mounting sleeve 6 is fixedly mounted at the bottom of the outer snap ring 53, a second rubber ring 11 is attached to the inner cavity wall of the bottom cover 10, a fixed block 1101 is arranged on the inner wall of the second rubber ring 11, the moving wheel 54 is in rolling contact with the inner wall of the second rubber ring 11, and the moving wheel 54 is also in contact with the fixed block 1101 in the rolling process, in the high-speed rotating process of the elastic turntable 5, the moving wheels 54 arranged on the surface of the outer snap ring 53 can pass through the fixed block 1101 on the inner wall of the second rubber ring 11, and the fixed block 1101 is a bulge inwards, the elastic rotating disc 5 pushes against the moving wheel 54 to compress the first rubber ring 52 on the inner side of the moving wheel 54, the other two moving wheels 54 press the second rubber ring 11 to compress, the moving wheels 54 can generate certain radial deviation, but the inner fixing cover 51 can not generate the deviation, when the moving wheels 54 are separated from the fixing block 1101, the compressed part of the second rubber ring 11 by the other two moving wheels 54 can be restored to the original state, and the first rubber ring 52 can also be restored to the original state, so that the outer snap ring 53 integrally restores to the original state, because the mounting sleeve 6 is fixedly connected with the outer snap ring 53, the mounting sleeve 6 can drive the polishing brush 7 to deviate together, and therefore the cycle is repeated, the elastic rotating disc 5 can deviate for three times when rotating for each circle, and the elastic rotating disc 5 drives the mounting sleeve 6 and the polishing brush 7 to form high-frequency micro-amplitude vibration, so that rust adhered to bristles can shake off.

Wherein, the circular through-hole of three-layer has all been seted up from inside to outside on elastic turntable 5 and the installation cover 6, and the circular through-hole of elastic turntable 5 is vertical alignment and the aperture is unanimous from top to bottom with the circular through-hole of installation cover 6.

Wherein, the apertures of the three layers of circular through holes arranged on the elastic turntable 5 and the mounting sleeve 6 are gradually decreased from inside to outside, the total area of the circular through holes at the innermost layer on the elastic turntable 5 and the mounting sleeve 6 is larger than that of the circular through holes at the middle layer, the total area of the circular through holes at the outermost layer on the elastic turntable 5 and the mounting sleeve 6 is the minimum, the circular through holes are actually air inlets, the three layers are arranged, the total area of each layer is different, the design purpose is that the circular through hole at the inner side is used as a main air inlet, thus the airflow close to the outside is integrally folded towards the inner side, namely, a large amount of air flow moves from outside to inside, so that the rust dust thrown out by the bristles is pushed back by the air flow, and then enters the first cylindrical bin 101 through the circular through hole, and when the airflow passes through the brush hair from outside to inside, the rust dust raised on the path can be taken away together.

Wherein, fixed mounting has tuber pipe 8 between cylinder storehouse 101 and No. two cylinder storehouses 102, the inner chamber of cylinder storehouse 101 and No. two cylinder storehouses 102 passes through tuber pipe 8 intercommunication, and the height that highly is greater than fan 9 of tuber pipe 8 sets up, therefore fan 9 is when exhausting downwards, can follow tuber pipe 8 and admit air, the air current comes from through polish brush 7, installation cover 6 and elastic turntable 5 enter into cylinder storehouse 101 No. one, No. two cylinder storehouses 102 are entered into to the rethread tuber pipe 8.

The base 103 is installed at the bottom of the inner cavity of the second cylindrical bin 102, the connecting pipe 104 is arranged at the bottom of the outer side of the second cylindrical bin 102, the base 103 is arranged under the fan 9, and the height of the inner bottom surface of the connecting pipe 104 is equal to that of the bottom surface of the base 103, so that the airflow change caused by the height difference in the airflow flowing process can be avoided.

Wherein, the plan view of base 103 is the circular of adaptation No. two cylinder storehouses 102 inner chambers, the longitudinal section of base 103 is right triangle, right triangle's top is just facing towards connecting pipe 104, in this embodiment, the top surface of base 103 just presents circular inclined plane, its lower edge just can be towards connecting pipe 104, so when fan 9 blows off dusty gas down, the air current can flow down and finally flow away from connecting pipe 104 along the inclined plane of base 103, break away from No. two cylinder storehouses 102 inner chambers, base 103 plays an effect to the air current direction, from reducing the air current offset in No. two cylinder storehouses 102 inner chambers, improve exhaust efficiency.

The external air passage of the connecting pipe 104 is communicated to an external dust-gas separating device or filtering device, and the dust-containing gas discharged from the connecting pipe 104 is introduced into the dust-gas separating device or filtering device to remove harmful rust dust therein, which is the content of the prior art and is not shown in the figure, but those skilled in the art can obtain the dust-containing gas without creative work, and the description is omitted here.

The middle of the fixing block 1101 is an arc-shaped bulge, both sides of the fixing block 1101 are arc-shaped concave transition curved surfaces, the surface of the fixing block 1101 is round and smooth, the volume of the fixing block 1101 is small, the fixing block 1101 cannot be designed to be too large according to actual conditions, the highest point of the arc-shaped bulge cannot exceed one fifth of the width of the first rubber ring 52, otherwise, when the moving wheel 54 rolls over, high-frequency large-amplitude vibration can occur, the vibration exceeds a controllable range, harmful impact can be caused on a rotating shaft, the damage effect of equipment is brought, the resistance of the moving wheel 54 can be greatly reduced through the arc-shaped design presented on the whole surface of the fixing block 1101, and the smooth surface can be smoother when the moving wheel 54 rolls over.

Wherein, the below of rack 12 is equipped with conveyer belt 13, the both sides fixed mounting at conveyer belt 13 top has mounting bracket 14, the slider of slide rail and rack 12 bottom is installed at the top of mounting bracket 14 and is slided and be connected, the slider is really a pulley module, through installing in the motor drive of rack 12 side, thereby make whole grinding device can carry out the horizontal line position for conveyer belt 13, make grinding device cooperation conveyer belt 13 can cover the whole upper surface of sheet metal component to the conveying of metal sheet metal component, be used for accomplishing comprehensive polishing.

The working principle and the using process are as follows:

the sheet metal component to be polished reaches the position right below the polishing device through the conveying belt 13, so that the servo motor 2 drives the gear module 3 to transmit, the fan 9 and the elastic rotary disc 5 are driven to rotate simultaneously, the polishing brush 7 also rotates along with the polishing brush 7, the copper wire bristles of the polishing brush 7 are formed and are ventilated up and down, the elastic rotary disc 5 and the mounting sleeve 6 are also ventilated up and down, the first cylindrical bin 101 and the second cylindrical bin 102 are arranged in the inner cavity of the device outer cover 1, the first cylindrical bin 101 is communicated with the second cylindrical bin 102 through the air pipe 8, so that the fan 9 works in the second cylindrical bin 102 and exhausts air downwards, the air can be exhausted from the first cylindrical bin 101 through the air pipe 8, due to the negative pressure effect in the first cylindrical bin 101, the first cylindrical bin 101 exhausts air to the outside through the elastic rotary disc 5 and the mounting sleeve 6, the elastic rotary disc 5 and the mounting sleeve 6 are both arranged right above the polishing brush 7, and rust erased by the polishing brush 7 can be directly sucked into the inside of the first cylindrical bin 101, then the dust gas is discharged from the connecting pipe 104 to the dust gas separating device for filtering treatment;

through the second rubber ring 11 and the fixed block 1101 on the inner cavity wall of the bottom cover 10, during the high-speed rotation of the elastic turntable 5, the moving wheels 54 arranged on the surface of the outer snap ring 53 pass through the fixed block 1101 on the inner wall of the second rubber ring 11, because the fixed block 1101 is a protrusion inwards, the moving wheels 54 are pushed to compress the first rubber ring 52 on the inner side thereof, the other two moving wheels 54 press the second rubber ring 11 to compress, and the moving wheels 54 generate a certain radial offset, but the inner fixed cover 51 does not generate the offset, and when the moving wheels 54 are separated from the fixed block 1101, the part of the second rubber ring 11 compressed by the other two moving wheels 54 is restored to the original state, and the first rubber ring 52 is also restored to the original state, so that the outer snap ring 53 is restored to the original state, because the mounting sleeve 6 is fixedly connected with the outer snap ring 53, the mounting sleeve 6 drives the polishing brush 7 to be shifted together, from this circulation, every time elastic turntable 5 rotates the round, can squint the cubic, and elastic turntable 5 drives installation cover 6 and brush 7 formation high frequency micro-amplitude vibrations of polishing, shakes off the rust of adhesion on the brush hair.

It is noted that, herein, relational terms such as first and second, and the like may be used solely to distinguish one entity or action from another entity or action without necessarily requiring or implying any actual such relationship or order between such entities or actions. Also, the terms "comprises," "comprising," or any other variation thereof, are intended to cover a non-exclusive inclusion, such that a process, method, article, or apparatus that comprises a list of elements does not include only those elements but may include other elements not expressly listed or inherent to such process, method, article, or apparatus.

Although embodiments of the present invention have been shown and described, it will be appreciated by those skilled in the art that changes, modifications, substitutions and alterations can be made in these embodiments without departing from the principles and spirit of the invention, the scope of which is defined in the appended claims and their equivalents.

Claims

1. The utility model provides a metal product processing grinding device, includes device dustcoat (1), servo motor (2) and rack (12), device dustcoat (1) fixed mounting is in the below of rack (12), servo motor (2) fixed mounting is in the inside of rack (12), its characterized in that: a gear module (3) is arranged in the device housing (1), the gear module (3) is in transmission connection with the servo motor (2) through a main shaft (4), the inner cavity of the device outer cover (1) is divided into a first cylindrical bin (101) and a second cylindrical bin (102) which are communicated with each other, the bottom of the inner cavity of the first cylindrical bin (101) is provided with an elastic turntable (5) in transmission connection with a gear module (3), the bottom of the device outer cover (1) is fixedly provided with a bottom cover (10), the bottom of the elastic turntable (5) is fixedly provided with a mounting sleeve (6), the elastic turntable (5) and the mounting sleeve (6) are communicated up and down, a polishing brush (7) is fixedly arranged on the inner side of the mounting sleeve (6), the polishing brush (7) penetrates through the bottom cover (10) and extends downwards to form a first cylindrical bin (101), a fan (9) in transmission connection with the gear module (3) is arranged in the second cylindrical bin (102);

the elastic turntable (5) comprises an inner fixed cover (51), a first rubber ring (52), an outer snap ring (53) and a moving wheel (54), the first rubber ring (52) is fixedly sleeved on the periphery of the inner fixed cover (51), the outer snap ring (53) is fixedly sleeved on the periphery of the first rubber ring (52), three moving wheels (54) are arranged on the periphery of the outer snap ring (53) at equal angles, the inner fixed cover (51) is connected with a transmission shaft of the gear module (3), the mounting sleeve (6) is fixedly mounted at the bottom of the outer snap ring (53), a second rubber ring (11) is attached to the inner cavity wall of the bottom cover (10), a fixing block (1101) is arranged on the inner wall of the second rubber ring (11), the moving wheel (54) is in rolling contact with the inner wall of the second rubber ring (11), and the moving wheel (54) is also in contact with the fixed block (1101) in the rolling process.

2. A metal product working sharpening device according to claim 1, wherein: three-layer circular through holes are formed in the elastic turntable (5) and the installation sleeve (6) from inside to outside, and the circular through holes of the elastic turntable (5) and the circular through holes of the installation sleeve (6) are vertically aligned and have consistent apertures.

3. A metal product working sharpening device according to claim 2, wherein: the circular through-hole of three-layer that sets up on elasticity carousel (5) and installation cover (6) diminishes from inside to outside aperture in proper order, the circular through-hole total area of inlayer is greater than the total area of the circular through-hole of middle level on elasticity carousel (5) and installation cover (6), the circular through-hole total area of outmost is minimum on elasticity carousel (5) and installation cover (6).

4. A metal product working sharpening device according to claim 1, wherein: an air pipe (8) is fixedly installed between the first cylindrical bin (101) and the second cylindrical bin (102), and inner cavities of the first cylindrical bin (101) and the second cylindrical bin (102) are communicated through the air pipe (8).

5. A metal product working sharpening device according to claim 1, wherein: a base (103) is installed at the bottom of the inner cavity of the second cylindrical bin (102), and a connecting pipe (104) is arranged at the bottom of the outer side of the second cylindrical bin (102).

6. A metal product working sharpening device according to claim 5, wherein: the top view of the base (103) is a circle which is adapted to the inner cavity of the second cylindrical bin (102), the longitudinal section of the base (103) is a right-angled triangle, and the top end of the right-angled triangle faces the connecting pipe (104).

7. A metal product working sharpening device according to claim 5, wherein: the connecting pipe (104) can be externally connected with an air passage and communicated to an external dust-gas separating device or a filtering device.

8. A metal product working sharpening device according to claim 1, wherein: the middle of the fixing block (1101) is an arc-shaped bulge, both sides of the fixing block (1101) are arc-shaped concave transition curved surfaces, and the surface of the fixing block (1101) is round and smooth.