CN111136539A

CN111136539A - A high-efficient burnishing device for valve body processing

Info

Publication number: CN111136539A
Application number: CN202010002158.8A
Authority: CN
Inventors: 陈海哨; 苏忠根; 王术新
Original assignee: Wenzhou University Oujiang College
Current assignee: Wenzhou University of Technology
Priority date: 2020-01-02
Filing date: 2020-01-02
Publication date: 2020-05-12

Abstract

The invention discloses a high-efficiency polishing device for machining a valve body of a valve, and particularly relates to the technical field of valve machining, wherein the polishing device comprises a top plate, wherein a polishing mechanism is arranged at the bottom end of the top plate; polishing mechanism includes the motor, the fixed bull stick that is equipped with of output shaft of motor, bull stick one end is equipped with the shell and runs through the shell, the fixed connecting rod that is equipped with of bull stick one end, the connecting rod bottom mounting is equipped with polishes the wheel, the fixed first bevel gear that is equipped with in bull stick outer end, first bevel gear bottom is equipped with two second bevel gears, two second bevel gear one side is all fixed and is equipped with the pivot, two pivot one end is fixed branch and the drum of being equipped with respectively, branch top and bottom all are equipped with first polishing board, the inside two second polishing boards that are equipped with of drum. The valve body is polished by the first polishing plate, the second polishing plate and the polishing wheel, so that the valve body polishing device can adapt to the shape of the valve body, is complete in polishing and has a good polishing effect.

Description

A high-efficient burnishing device for valve body processing

Technical Field

The embodiment of the invention relates to the technical field of valve machining, in particular to a high-efficiency polishing device for machining a valve body of a valve.

Background

The valve is a device for controlling the direction, pressure and flow of fluid in a fluid system, the valve is a device which can make the medium in the piping and equipment flow or stop and can control the flow of the medium, the valve can be used for controlling the flow of various types of fluid such as air, water, steam, various corrosive media, mud, oil products, liquid metal, radioactive media and the like, and has the functions of diversion, cut-off, throttling, non-return, flow division, overflow pressure relief and the like. The valve body is a main part in the valve. The valve body processing needs polishing, which means a processing method for reducing the roughness of the surface of a workpiece by using mechanical, chemical or electrochemical action to obtain a bright and flat surface, and polishing cannot improve the dimensional accuracy or geometric accuracy of the workpiece, but aims to obtain a smooth surface or mirror surface gloss, sometimes also is used for eliminating gloss, and a polishing wheel is usually used as a polishing tool.

The prior art has the following defects: need polish its surface and inner wall in the valve body course of working in order to guarantee that the polishing is comprehensive, but current utilization is thrown aureola and is hardly adapted to the annular outer end and the annular inside of valve body, and this just makes polishing effect relatively poor.

Disclosure of Invention

Therefore, the embodiment of the invention provides an efficient polishing device for machining a valve body of a valve, the valve body is polished by a first polishing plate, a second polishing plate and a polishing wheel, the efficient polishing device can adapt to the outer annular end and the inner annular end of the valve body and is complete in polishing, and the first polishing plate and the second polishing plate can be always in contact with the valve body even if the first polishing plate and the second polishing plate are worn by utilizing the elastic forces of a first spring and a second spring, so that the polishing effect is good, and the problem that the polishing wheel is difficult to adapt to the outer annular end and the inner annular end of the valve body in the prior art, and the polishing effect is poor is solved.

In order to achieve the above object, the embodiments of the present invention provide the following technical solutions: a high-efficiency polishing device for machining a valve body of a valve comprises a workbench, a top plate and four stand columns, wherein the top plate is arranged at the top of the workbench, the four stand columns are arranged between the workbench and the top plate, the workbench and the top plate are fixedly connected through the four stand columns, a polishing mechanism is arranged at the bottom end of the top plate, the polishing mechanism is arranged at the top of the workbench, and the polishing mechanism is arranged between the four stand columns;

the polishing mechanism comprises a motor, a rotating rod is fixedly arranged at an output shaft of the motor, a shell is arranged at one end of the rotating rod and penetrates through the shell, the rotating rod is movably connected with the bottom end inside the shell through a bearing, a connecting rod is fixedly arranged at one end of the rotating rod, a polishing wheel is fixedly arranged at the bottom end of the connecting rod, a first bevel gear is fixedly arranged at the outer end of the rotating rod, two second bevel gears are arranged at the bottom end of the first bevel gear, the two second bevel gears are respectively arranged at two sides of the rotating rod, the two second bevel gears are respectively meshed with the first bevel gear, a rotating shaft is fixedly arranged at one side of each of the two second bevel gears, the first bevel gear, the two second bevel gears and the two rotating shafts are respectively arranged inside the shell, the two rotating shafts are respectively movably connected with two side walls inside the shell through bearings, a supporting, the polishing machine is characterized in that a first polishing plate is arranged at the top and the bottom of the supporting rod, a first spring is arranged between the first polishing plate and the supporting rod, the two ends of the first spring are fixedly connected with the outer end of the supporting rod and the inner end of the first polishing plate respectively, two second polishing plates are arranged inside the cylinder, two second springs are arranged inside the cylinder, the two ends of each second spring are fixedly connected with the outer end of the second polishing plate and the inner wall of the cylinder respectively, and the motor is fixedly arranged at the bottom end of the top plate.

Furthermore, two first polishing board one side all is fixed and is equipped with first swash plate, two second polishing board one side all is fixed and is equipped with the second swash plate, two the second swash plate all is established inside the drum.

Furthermore, two first polishing board inner all is fixed and is equipped with first guide arm, two first guide arm is established respectively and is all extended into branch inside at branch top and bottom, first spring housing is established in first guide arm outer end, two second polishing board outer end all is fixed and is equipped with the second guide arm, two the second guide arm is all established and is extended drum top and bottom respectively inside the drum, the second spring housing is established in second guide arm outer end.

Further, workstation top and front end are inlayed respectively and are had wire net and drawer, the drawer is established in the wire net bottom, inside pasting of workstation has sealed the pad, sealed pad is established in the drawer bottom, the opening has been seted up to the drawer bottom, the inside bottom of drawer is inlayed and is had the filter screen, the filter screen is established on the opening top.

Further, an exhaust fan is fixedly arranged on one side of the workbench, a first pipeline is fixedly arranged inside the workbench, one end of the first pipeline is arranged on one side of the exhaust fan, and the other end of the first pipeline is arranged at the bottom of the sealing gasket.

Further, the fixed cover body that is equipped with of air exhauster opposite side, the fixed second pipeline that is equipped with in cover body one side, the fixed cavity rectangular plate that is equipped with of second pipeline one end, the cavity rectangular plate is established between four stands, a plurality of through-holes have been seted up to cavity rectangular plate bottom, the cavity rectangular plate is established at the shell top.

Furthermore, two support rods are fixedly arranged between the top end of the hollow rectangular plate and the bottom end of the top plate, the support rods are arranged on one side of the second pipeline, and the hollow rectangular plate and the top plate are fixed through the two support rods.

Further, two vertical rods are fixedly arranged between the top plate and the shell, the two vertical rods are respectively arranged on two sides of the motor, and the hollow rectangular plate is arranged on the outer sides of the two vertical rods.

The embodiment of the invention has the following advantages:

1. the valve body is polished by the first polishing plate, the second polishing plate and the polishing wheel, the valve body can adapt to the annular outer end and the annular inner part of the valve body, compared with the prior art, the polishing is comprehensive, and the first polishing plate and the second polishing plate can always contact with the valve body even if the first polishing plate and the second polishing plate are worn by utilizing the elasticity of the first spring and the second spring, so that the polishing effect is good;

2. according to the invention, the scraps generated by polishing are collected in the drawer through the airflow generated by the exhaust fan, compared with the prior art, the scraps generated by polishing are conveniently collected, the pollution to the surrounding environment and the harm to the health of personnel are prevented, and meanwhile, the airflow generated by the exhaust fan can cool the valve body during polishing, so that the functionality is increased.

Drawings

In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the drawings used in the description of the embodiments or the prior art will be briefly described below. It should be apparent that the drawings in the following description are merely exemplary, and that other embodiments can be derived from the drawings provided by those of ordinary skill in the art without inventive effort.

The structures, ratios, sizes, and the like shown in the present specification are only used for matching with the contents disclosed in the specification, so as to be understood and read by those skilled in the art, and are not used to limit the conditions that the present invention can be implemented, so that the present invention has no technical significance, and any structural modifications, changes in the ratio relationship, or adjustments of the sizes, without affecting the effects and the achievable by the present invention, should still fall within the range that the technical contents disclosed in the present invention can cover.

FIG. 1 is a schematic view of the overall structure provided by the present invention;

FIG. 2 is a schematic overall cross-sectional structure provided by the present invention;

FIG. 3 is a schematic front view of a polishing mechanism according to the present invention;

FIG. 4 is a schematic top view of a polishing mechanism according to the present invention;

FIG. 5 is a schematic perspective view of a first polishing plate and a first inclined plate according to the present invention;

FIG. 6 is a schematic view of a front view of a hollow rectangular plate according to the present invention;

FIG. 7 is a schematic perspective view of a hollow rectangular plate according to the present invention;

FIG. 8 is an enlarged view of portion A of FIG. 2 according to the present invention;

in the figure: 1 workbench, 2 columns, 3 top plates, 4 polishing mechanisms, 5 motors, 6 hollow rectangular plates, 7 support rods, 8 rotating rods, 9 shells, 10 connecting rods, 11 polishing wheels, 12 first bevel gears, 13 second bevel gears, 14 rotating shafts, 15 supporting rods, 16 cylinders, 17 first springs, 18 first polishing plates, 19 second springs, 20 second polishing plates, 21 vertical rods, 22 first inclined plates, 23 first guide rods, 24 second guide rods, 25 second inclined plates, 26 steel wire meshes, 27 drawers, 28 sealing gaskets, 29 exhaust fans, 30 first pipelines, 31 through openings, 32 filter screens, 33 cover bodies and 34 second pipelines.

Detailed Description

The present invention is described in terms of particular embodiments, other advantages and features of the invention will become apparent to those skilled in the art from the following disclosure, and it is to be understood that the described embodiments are merely exemplary of the invention and that it is not intended to limit the invention to the particular embodiments disclosed. 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.

Referring to the attached drawings 1-5 of the specification, the efficient polishing device for machining the valve body of the valve in the embodiment comprises a workbench 1, a top plate 3 and four stand columns 2, wherein the top plate 3 is arranged at the top of the workbench 1, the four stand columns 2 are arranged between the workbench 1 and the top plate 3, the workbench 1 and the top plate 3 are fixedly connected through the four stand columns 2, a polishing mechanism 4 is arranged at the bottom end of the top plate 3, the polishing mechanism 4 is arranged at the top of the workbench 1, and the polishing mechanism 4 is arranged between the four stand columns 2;

the polishing mechanism 4 comprises a motor 5, a rotating rod 8 is fixedly arranged on an output shaft of the motor 5, a shell 9 is arranged at one end of the rotating rod 8 and penetrates through the shell 9, the rotating rod 8 is movably connected with the bottom end inside the shell 9 through a bearing, a connecting rod 10 is fixedly arranged at one end of the rotating rod 8, a polishing wheel 11 is fixedly arranged at the bottom end of the connecting rod 10, a first bevel gear 12 is fixedly arranged at the outer end of the rotating rod 8, two second bevel gears 13 are arranged at the bottom end of the first bevel gear 12, the two second bevel gears 13 are respectively arranged at two sides of the rotating rod 8, the two second bevel gears 13 are respectively meshed with the first bevel gear 12, a rotating shaft 14 is fixedly arranged at one side of each of the two second bevel gears 13, the first bevel gear 12, the two second bevel gears 13 and the two rotating shafts 14 are respectively arranged inside the shell 9, and the, two 14 one end of pivot is fixed respectively and is equipped with branch 15 and drum 16, branch 15 and drum 16 are established respectively at shell 9 both sides, 15 tops of branch and bottom all are equipped with first polishing board 18, two all be equipped with first spring 17 between first polishing board 18 and the branch 15, first spring 17 both ends respectively with 15 outer ends of branch and the inner fixed connection of

first polishing board

18, 16 inside two second polishing boards 20 that are equipped with of drum, 16 inside two second springs 19 that are equipped with of drum, 19 both ends of second spring respectively with second polishing board 20 outer ends and 16 inner wall fixed connection of drum, motor 5 is fixed to be established in roof 3 bottom.

Further, two first polishing board 18 one side all is fixed and is equipped with first swash plate 22, two second polishing board 20 one side all is fixed and is equipped with second swash plate 25, two second swash plate 25 all establishes inside drum 16, first swash plate 22 is convenient for the valve body cover and is in two first polishing board 18 outer ends, second swash plate 25 is convenient for the valve body motion to between two second polishing boards 20.

Further, two first polishing board 18 is all fixed to be equipped with first guide arm 23, two first guide arm 23 is established respectively at branch 15 top and bottom and all extends into branch 15 inside, first spring 17 cover is established in first guide arm 23 outer end, two second polishing board 20 outer end all is fixed to be equipped with second guide arm 24, two second guide arm 24 all establishes inside 16 drums and extends drum 16 top and bottom respectively, second spring 19 cover is established in second guide arm 24 outer end, is convenient for to the motion direction of first polishing board 18 and second polishing board 20.

The implementation scenario is specifically as follows: when the polishing valve is in practical use, the valve body is placed at the outer ends of the two first inclined plates 22, then the valve body is moved to push the two first inclined plates 22 to move in opposite directions, so that the first polishing plate 18 and the first guide rod 23 are simultaneously driven to move in opposite directions, the first spring 17 is compressed, the first polishing plate 18 is further contacted with the inner wall of the valve body, the first polishing plate 18 is attached to the inner wall of the valve body under the elastic force action of the first spring 17, then the motor 5 is started, the motor 5 works to drive the rotating rod 8 and the first bevel gear 12 to rotate, the first bevel gear 12 rotates to drive the second bevel gear 13 meshed with the first bevel gear to rotate, so that the support rod 15 is driven to rotate through the two rotating shafts 14, the first polishing plate 18 is driven to rotate along the inner wall of the valve body through the first guide rod 23 to perform polishing work, the valve body is placed between the two second inclined plates 25 and then moves so as, and then drive second polishing board 20 and second guide arm 24 to move to opposite direction simultaneously, and then compress second spring 19, and then make the valve body move to between two second polishing boards 20, and second polishing board 20 hugs closely with the valve body outer end at the spring action of second spring 19 simultaneously, when motor 5 works and drives second bevel gear 13 to rotate, second bevel gear 13 drives drum 16 to rotate through another pivot 14, thereby drive second guide arm 24 to rotate simultaneously, and then drive second polishing board 20 to rotate along the valve body outer end and polish, simultaneously runner 8 rotates and drives connecting rod 10 and polishing wheel 11 to rotate simultaneously, utilize polishing wheel 11 also can polish other positions of valve body, polish the valve body through first polishing board 18, second polishing board 20 and polishing wheel 11, can adapt to annular outer end and annular inside of valve body, the polishing is comprehensive, and utilize the elasticity of first spring 17 and second spring 19 can make first polishing board 18 and second polishing board 20 polish Even take place wearing and tearing also can be with the valve body contact all the time for polishing effect is good, and this embodiment has specifically solved among the prior art annular outer end and the annular inside that the polishing wheel hardly adapts to the valve body, and this just makes the relatively poor problem of polishing effect.

Referring to specification attached

drawing

1, 2, 6, 7 and fig. 8, the high-efficient burnishing device for valve body processing of this embodiment, 1 top and front end of workstation are inlayed respectively and are had wire net 26 and drawer 27, drawer 27 is established in wire net 26 bottom, 1 inside pasting of workstation has sealed pad 28, sealed pad 28 is established in drawer 27 bottom, opening 31 has been seted up to drawer 27 bottom, the inside bottom of drawer 27 is inlayed and is had filter screen 32, filter screen 32 is established on opening 31 top.

Further, an exhaust fan 29 is fixedly arranged on one side of the workbench 1, a first pipeline 30 is fixedly arranged inside the workbench 1, one end of the first pipeline 30 is arranged on one side of the exhaust fan 29, and the other end of the first pipeline 30 is arranged at the bottom of the sealing gasket 28, so that scraps generated by polishing can be conveniently sucked into the drawer 27 for collection.

Further, the fixed cover body 33 that is equipped with of air exhauster 29 opposite side, the fixed second pipeline 34 that is equipped with in cover body 33 one side, the fixed cavity rectangular plate 6 that is equipped with of second pipeline 34 one end, cavity rectangular plate 6 is established between four stands 2, a plurality of through-holes have been seted up to 6 bottoms of cavity rectangular plate, cavity rectangular plate 6 is established at shell 9 top, and the valve body cooling when the air current that the air exhauster 29 produced is to the polishing of being convenient for.

Further, two support rods 7 are fixedly arranged between the top end of the hollow rectangular plate 6 and the bottom end of the top plate 3, the support rods 7 are arranged on one side of the second pipeline 34, and the hollow rectangular plate 6 and the top plate 3 are fixed through the two support rods 7, so that the hollow rectangular plate 6 is supported.

Further, two vertical rods 21 are fixedly arranged between the top plate 3 and the shell 9, the two vertical rods 21 are respectively arranged on two sides of the motor 5, and the hollow rectangular plate 6 is arranged on the outer sides of the two vertical rods 21 to support the shell 9.

The implementation scenario is specifically as follows: the polishing starts air exhauster 29 simultaneously, air exhauster 29 makes the inside air current that produces of drawer 27 through first pipeline 30 and opening 31 in the work, the piece that the polishing produced passes wire net 26 and is inhaled inside drawer 27, then stop inside drawer 27 under the block of filter screen 32, thereby be convenient for collect the piece that the polishing produced, prevent to pollute the surrounding environment and endanger personnel's health, the air current that air exhauster 29 produced simultaneously gets into inside hollow rectangular plate 6 through cover body 33 and second pipeline 34, then the through-hole of rethread hollow rectangular plate 6 is spout downwards thereby cool down the valve body when polishing, the functionality has been increased, this embodiment has specifically solved the problem that the piece that the polishing produced among the prior art pollutes the surrounding environment easily and endangers personnel' health.

The working principle is as follows:

referring to the attached drawings 1-5 of the specification, in practical use, the valve body is placed at the outer ends of two first inclined plates 22, then the valve body is moved to push the two first inclined plates 22 to move in opposite directions, so as to simultaneously drive the first polishing plate 18 and the first guide rod 23 to move in opposite directions, so that the first polishing plate 18 is in contact with the inner wall of the valve body, then the motor 5 is started, the motor 5 works to drive the rotating rod 8 and the first bevel gear 12 to rotate, the first bevel gear 12 rotates to drive the second bevel gear 13, the rotating shaft 14, the support rod 15, the first guide rod 23 and the first polishing plate 18 to rotate, so as to perform polishing work, the valve body is placed between the two second inclined plates 25 and then moves to push the two second inclined plates 25 to move in opposite directions, so as to simultaneously drive the second polishing plates 20 and the second guide rod 24 to move in opposite directions, so as to move the valve body between the two second polishing plates, when the motor 5 works to drive the second bevel gear 13 to rotate, the cylinder 16 is driven to rotate, so that the second polishing plate 20 is driven to polish the outer end of the valve body, and meanwhile, the rotating rod 8 rotates to drive the polishing wheel 11 to rotate, so that other parts of the valve body can be polished;

referring to the accompanying

drawings

1, 2, 6, 7 and 8 of the specification, polishing is carried out while actuating the exhaust fan 29 to generate an air flow inside the drawer 27, and debris generated by polishing is sucked into the inside of the drawer 27 through the steel wire mesh 26 and then stays inside the drawer 27 under the obstruction of the filter screen 32, while the air flow generated by the exhaust fan 29 enters the inside of the hollow rectangular plate 6 through the cover 33 and the second pipe 34 and is then ejected downward through the through holes of the hollow rectangular plate 6 to cool the valve body during polishing.

Although the invention has been described in detail above with reference to a general description and specific examples, it will be apparent to one skilled in the art that modifications or improvements may be made thereto based on the invention. Accordingly, such modifications and improvements are intended to be within the scope of the invention as claimed.

Claims

1. The utility model provides a high-efficient burnishing device for valve body processing, includes workstation (1), roof (3) and four stand (2), establish at workstation (1) top, four roof (3) stand (2) are all established between workstation (1) and roof (3), workstation (1) and roof (3) are through four stand (2) fixed connection, its characterized in that: the polishing mechanism (4) is arranged at the bottom end of the top plate (3), the polishing mechanism (4) is arranged at the top of the workbench (1), and the polishing mechanism (4) is arranged among the four upright posts (2);

polishing mechanism (4) includes motor (5), the fixed bull stick (8) that is equipped with of output shaft of motor (5), bull stick (8) one end is equipped with shell (9) and runs through shell (9), bull stick (8) and the inside bottom of shell (9) pass through bearing swing joint, the fixed connecting rod (10) that is equipped with of bull stick (8) one end, connecting rod (10) bottom mounting is equipped with polishing wheel (11), the fixed first bevel gear (12) that is equipped with in bull stick (8) outer end, first bevel gear (12) bottom is equipped with two second bevel gear (13), two second bevel gear (13) are established respectively in bull stick (8) both sides, two second bevel gear (13) all mesh with first bevel gear (12), two second bevel gear (13) one side all is fixed and is equipped with pivot (14), first bevel gear (12), Two second bevel gears (13) and two pivot (14) are all established inside shell (9), two pivot (14) pass through bearing swing joint, two with shell (9) inside both sides wall respectively pivot (14) one end is fixed branch (15) and drum (16) of being equipped with respectively, shell (9) both sides are established respectively in branch (15) and drum (16), branch (15) top and bottom all are equipped with first polishing board (18), two all be equipped with first spring (17) between first polishing board (18) and branch (15), first spring (17) both ends respectively with branch (15) outer end and first polishing board (18) inner fixed connection, drum (16) inside is equipped with two second polishing board (20), drum (16) inside is equipped with two second spring (19), second spring (19) both ends respectively with second polishing board (20) outer end and drum (16) inner wall fixed connection And the motor (5) is fixedly arranged at the bottom end of the top plate (3).

2. The high-efficiency polishing device for machining the valve body of the valve according to claim 1, wherein the polishing device comprises: two first swash plate (22) are all fixed to be equipped with on first polishing board (18) one side, two second polishing board (20) one side all is fixed and is equipped with second swash plate (25), two second swash plate (25) all establish inside drum (16).

3. The high-efficiency polishing device for machining the valve body of the valve according to claim 1, wherein the polishing device comprises: two first polishing board (18) the inner is all fixed and is equipped with first guide arm (23), two first guide arm (23) are established respectively on branch (15) top and bottom and all extend into branch (15) inside, first spring (17) cover is established in first guide arm (23) outer end, two second polishing board (20) outer end all is fixed and is equipped with second guide arm (24), two second guide arm (24) are all established inside drum (16) and are extended drum (16) top and bottom respectively, second spring (19) cover is established in second guide arm (24) outer end.

4. The high-efficiency polishing device for machining the valve body of the valve according to claim 1, wherein the polishing device comprises: workstation (1) top and front end are inlayed respectively and are had wire net (26) and drawer (27), establish in wire net (26) bottom drawer (27), workstation (1) inside is pasted and is had sealed pad (28), sealed pad (28) are established in drawer (27) bottom, opening (31) have been seted up to drawer (27) bottom, the inside bottom of drawer (27) is inlayed and is had filter screen (32), establish on opening (31) top filter screen (32).

5. The high-efficiency polishing device for machining the valve body of the valve according to claim 4, wherein the polishing device comprises: workstation (1) one side is fixed and is equipped with air exhauster (29), workstation (1) inside fixed is equipped with first pipeline (30), air exhauster (29) one side is established to first pipeline (30) one end, first pipeline (30) other end is established in sealed pad (28) bottom.

6. The high-efficiency polishing device for machining the valve body of the valve according to claim 5, wherein the polishing device comprises: air exhauster (29) opposite side is fixed to be equipped with the cover body (33), cover body (33) one side is fixed to be equipped with second pipeline (34), second pipeline (34) one end is fixed to be equipped with cavity rectangular plate (6), establish between four stand (2) cavity rectangular plate (6), a plurality of through-holes have been seted up to cavity rectangular plate (6) bottom, establish at shell (9) top cavity rectangular plate (6).

7. The high-efficiency polishing device for machining the valve body of the valve according to claim 6, wherein the polishing device comprises: two support rods (7) are fixedly arranged between the top end of the hollow rectangular plate (6) and the bottom end of the top plate (3), the support rods (7) are arranged on one side of the second pipeline (34), and the hollow rectangular plate (6) and the top plate (3) are fixed through the two support rods (7).

8. The high-efficiency polishing device for machining the valve body of the valve according to claim 6, wherein the polishing device comprises: two vertical rods (21) are fixedly arranged between the top plate (3) and the shell (9), the two vertical rods (21) are respectively arranged on two sides of the motor (5), and the hollow rectangular plate (6) is arranged on the outer sides of the two vertical rods (21).