CN107309767A - A kind of sanding apparatus - Google Patents
A kind of sanding apparatus Download PDFInfo
- Publication number
- CN107309767A CN107309767A CN201710749714.6A CN201710749714A CN107309767A CN 107309767 A CN107309767 A CN 107309767A CN 201710749714 A CN201710749714 A CN 201710749714A CN 107309767 A CN107309767 A CN 107309767A
- Authority
- CN
- China
- Prior art keywords
- end cover
- bottom end
- rocking arm
- sliding block
- sanding apparatus
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Granted
Links
Classifications
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B24—GRINDING; POLISHING
- B24B—MACHINES, DEVICES, OR PROCESSES FOR GRINDING OR POLISHING; DRESSING OR CONDITIONING OF ABRADING SURFACES; FEEDING OF GRINDING, POLISHING, OR LAPPING AGENTS
- B24B27/00—Other grinding machines or devices
- B24B27/033—Other grinding machines or devices for grinding a surface for cleaning purposes, e.g. for descaling or for grinding off flaws in the surface
- B24B27/04—Grinding machines or devices in which the grinding tool is supported on a swinging arm
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B24—GRINDING; POLISHING
- B24B—MACHINES, DEVICES, OR PROCESSES FOR GRINDING OR POLISHING; DRESSING OR CONDITIONING OF ABRADING SURFACES; FEEDING OF GRINDING, POLISHING, OR LAPPING AGENTS
- B24B27/00—Other grinding machines or devices
- B24B27/0076—Other grinding machines or devices grinding machines comprising two or more grinding tools
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B24—GRINDING; POLISHING
- B24B—MACHINES, DEVICES, OR PROCESSES FOR GRINDING OR POLISHING; DRESSING OR CONDITIONING OF ABRADING SURFACES; FEEDING OF GRINDING, POLISHING, OR LAPPING AGENTS
- B24B41/00—Component parts such as frames, beds, carriages, headstocks
- B24B41/06—Work supports, e.g. adjustable steadies
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B24—GRINDING; POLISHING
- B24B—MACHINES, DEVICES, OR PROCESSES FOR GRINDING OR POLISHING; DRESSING OR CONDITIONING OF ABRADING SURFACES; FEEDING OF GRINDING, POLISHING, OR LAPPING AGENTS
- B24B47/00—Drives or gearings; Equipment therefor
- B24B47/10—Drives or gearings; Equipment therefor for rotating or reciprocating working-spindles carrying grinding wheels or workpieces
- B24B47/12—Drives or gearings; Equipment therefor for rotating or reciprocating working-spindles carrying grinding wheels or workpieces by mechanical gearing or electric power
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B24—GRINDING; POLISHING
- B24B—MACHINES, DEVICES, OR PROCESSES FOR GRINDING OR POLISHING; DRESSING OR CONDITIONING OF ABRADING SURFACES; FEEDING OF GRINDING, POLISHING, OR LAPPING AGENTS
- B24B47/00—Drives or gearings; Equipment therefor
- B24B47/20—Drives or gearings; Equipment therefor relating to feed movement
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B24—GRINDING; POLISHING
- B24B—MACHINES, DEVICES, OR PROCESSES FOR GRINDING OR POLISHING; DRESSING OR CONDITIONING OF ABRADING SURFACES; FEEDING OF GRINDING, POLISHING, OR LAPPING AGENTS
- B24B5/00—Machines or devices designed for grinding surfaces of revolution on work, including those which also grind adjacent plane surfaces; Accessories therefor
- B24B5/02—Machines or devices designed for grinding surfaces of revolution on work, including those which also grind adjacent plane surfaces; Accessories therefor involving centres or chucks for holding work
- B24B5/04—Machines or devices designed for grinding surfaces of revolution on work, including those which also grind adjacent plane surfaces; Accessories therefor involving centres or chucks for holding work for grinding cylindrical surfaces externally
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B24—GRINDING; POLISHING
- B24B—MACHINES, DEVICES, OR PROCESSES FOR GRINDING OR POLISHING; DRESSING OR CONDITIONING OF ABRADING SURFACES; FEEDING OF GRINDING, POLISHING, OR LAPPING AGENTS
- B24B5/00—Machines or devices designed for grinding surfaces of revolution on work, including those which also grind adjacent plane surfaces; Accessories therefor
- B24B5/35—Accessories
-
- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02P—CLIMATE CHANGE MITIGATION TECHNOLOGIES IN THE PRODUCTION OR PROCESSING OF GOODS
- Y02P70/00—Climate change mitigation technologies in the production process for final industrial or consumer products
- Y02P70/10—Greenhouse gas [GHG] capture, material saving, heat recovery or other energy efficient measures, e.g. motor control, characterised by manufacturing processes, e.g. for rolling metal or metal working
Landscapes
- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Finish Polishing, Edge Sharpening, And Grinding By Specific Grinding Devices (AREA)
Abstract
The invention discloses a kind of raising grinding efficiency, the sanding apparatus for quality of polishing.Including upper bracket, undersetting, upper end cover, bottom end cover and by upper end cover, the column that bottom end cover is fixed together, upper end cover passes through upper extension, bearings are in upper bracket, bottom end cover passes through lower extension, bearings are in undersetting, upper end cover, upper extension is provided with the access aperture of workpiece to be polished, the outer rim of bottom end cover is provided with the leg extended downwardly, leg, installation cavity is formed between lower extension, guide rod is provided with installation cavity, be slidably matched sliding block on guide rod, compression spring is set between sliding block and leg, a connecting rod is hinged on sliding block, rocker arm support is fixed with bottom end cover, the middle part of rocking arm is hinged on rocker arm support, the top of rocking arm sets sanding component, in the axial hole that the lower end of rocking arm is provided with through the resigning hole insertion connecting rod on upper end cover is slided, sliding block is in centrifugal force, radially slided under compression spring effect along bottom end cover, and drive sanding component to move.
Description
Technical field
The present invention is used for surface treatment of the cylindrical bar blank before die forging process is entered, and in particular to one kind polishing dress
Put.
Background technology
At present, bar blank generally requires and bar blank is heated, therefore, blank rod before forging equipment is entered
Material easily generates oxide skin before forging die is entered on its surface, if the bar with oxide skin is directly placed into forging die, forging
The oxide skin meeting " adhesion " come off after pressure from bar causes damage, and influence die forging precision on mould to mould.At present,
Typically use the oxide skin of artificial manual grinding billet surface, such one side inefficiency, on the other hand due to different behaviour
Make personnel grinding technology it is different with dynamics can cause bar polish quality it is uneven, influence final products quality.
The content of the invention
Beaten it is an object of the invention to overcome the deficiencies of the prior art and provide a kind of grinding efficiency, polishing quality of improving
Mill apparatus.
The object of the present invention is achieved like this：
A kind of sanding apparatus, including upper bracket, undersetting, and the workpiece polishing mechanism being arranged between upper bracket, undersetting,
The workpiece polishing mechanism includes upper end cover, bottom end cover and the column for being fixed together upper end cover, bottom end cover,
The frame of workpiece polishing mechanism is formed, the upper end cover is provided with upper extension vertically, and the upper extension is by bearings in upper
In the upper Positioning holes that bearing is provided with, the bottom end cover is provided with lower extension vertically, and the lower extension passes through bearings
In in the lower Positioning holes that undersetting is provided with, the upper end cover, upper extension are provided with the access aperture of workpiece to be polished vertically, described
The outer rim of bottom end cover is provided with the leg extended downwardly, and edge in installation cavity, the installation cavity is formed between the leg, lower extension
It is radially provided with guide rod, the guide rod and is sliding combined with sliding block, the guide rod part between the sliding block and leg is cased with compressing bullet
The middle part for being fixed with a connecting rod, the frame and rocking arm being hinged on rocker arm support, rocker arm support, institute are hinged on spring, the sliding block
The top for stating rocking arm sets sanding component, and the axle that connecting rod is provided with is inserted in the lower end of the rocking arm through the resigning hole on upper end cover
In being slided to hole,
When workpiece polishing mechanism rotates, sliding block is radially slided under the elastic force effect of centrifugal force, compression spring along bottom end cover, and is led to
Sanding component of the connecting rod with motion rocker arm top is crossed to move radially along bottom end cover.
It is preferred that, the quantity of the guide rod is three, and three guide rods are circumferentially uniformly arranged on the peace of bottom end cover along bottom end cover
In behaveing affectedly, each guide rod connects corresponding sliding block, connecting rod, rocking arm, sanding component respectively.
It is preferred that, the sanding component is fixedly mounted on the top of rocking arm.
It is preferred that, the epimere of the rocking arm parallel to bottom end cover axis, the hypomere of the rocking arm along bottom end cover radially to
Outer incline.
It is preferred that, the bottom end cover is provided with another access aperture of workpiece to be polished, the access aperture and upper end cover vertically
On access aperture be located at same axis on.
It is preferred that, the rocker arm support is fixed on the upper surface of bottom end cover, and can along bottom end cover radial direction adjustment position.
It is preferred that, the quantity of the column is three, and three root posts are uniformly arranged along the circumference of bottom end cover, and three root posts are equal
Positioned at the outside of access aperture.
It is preferred that, one end of the guide rod is provided with screw thread, and the guide rod sets threaded threaded one end and is fixed on lower extension
In the screwed hole that portion is provided with.
It is preferred that, the lower end of the lower extension extended undersetting and was fixed for connecting the belt wheel of motor.
It is preferred that, sanding apparatus is used to enter the oxide skin of polishing bar blank before die forging process.
By adopting the above-described technical solution, the present invention has the advantages that：
1) pressure that sanding component applies to workpiece can be accurately controlled, and then ensures the polishing that workpiece is subject in polishing
Component pressure is uniform in size, and radially feeds simultaneously, and in the absence of unbalance loading, grinding homogeneity ensures grinding workpieces quality；
2) manual grinding, and the bar blank for the different-diameter that can polish are substituted with mechanical grinding, improves grinding efficiency；
3) whole bruting process only needs controlled motor rotating speed, can more easily realize Automated condtrol, more easily
Incorporate automatic production line；
4) 3 points based on more than, quality is greatly improved while reducing cost, product competitiveness is improved.
Brief description of the drawings
Fig. 1 the structural representation of present invention；
Fig. 2 is Fig. 1 decomposing schematic representation；
Fig. 3 is the connection diagram that bottom end cover looks up line of vision；
Fig. 4 is the connection diagram that bottom end cover overlooks line of vision.
Reference
In accompanying drawing, 1- workpiece；2- upper bearing (metal)s；3- upper brackets；4- nuts one；5- spring washers one；6- upper end covers；7- is stood
Post；8- nuts two；9- spring washers two；10- sanding components；11- rocking arms；12- bottom end covers；13- connecting rods；14- sliding blocks；15-
Guide rod；16- compression springs；17- lower bearings；18- lower carriages；19- flat keys；20- belt wheels；21- locking nuts；22- nuts three；
23- bolts；24- rocker arm supports；25- rocking arm bearing pins.
Embodiment
It is that sanding apparatus is used to enter die forging work in a kind of embodiment of sanding apparatus, the present embodiment referring to Fig. 1 to Fig. 4
The oxide skin of polishing bar blank before sequence.
Sanding apparatus includes upper bracket, undersetting, and the workpiece polishing mechanism being arranged between upper bracket, undersetting, actual
In use, upper bracket, undersetting can be fixed on any body.The workpiece polishing mechanism includes upper end cover, bottom end cover and incited somebody to action
The column that upper end cover, bottom end cover are fixed together, forms the frame of workpiece polishing mechanism, the quantity of the column is three, three
Root post is uniformly arranged along the circumference of bottom end cover, and the upper end cover is provided with upper extension vertically, and the upper extension passes through upper
Bearings are in the upper Positioning holes that upper bracket is provided with, and the bottom end cover is provided with lower extension, the lower extension vertically
It is supported in by lower bearing in the lower Positioning holes that undersetting is provided with, the lower end of the lower extension extended undersetting and fixed use
In the belt wheel of connection motor.The belt wheel is circumferentially positioned by flat key, and passes through locking nut axially position.The upper end cover,
Upper extension is provided with the access aperture of workpiece to be polished vertically.The bottom end cover enters provided with another of workpiece to be polished vertically
Enter hole, the access aperture on the access aperture and upper end cover is located on same axis, workpiece enters from the access aperture on upper end cover, can be with
Realize to the polishing compared with machining long workpieces, three root posts are respectively positioned on the outside of access aperture.
The outer rim of the bottom end cover is provided with the leg extended downwardly, and installation cavity, institute are formed between the leg, lower extension
State in installation cavity and be radially provided with guide rod, the present embodiment, the quantity of the guide rod is three, and three guide rods are circumferential along bottom end cover
It is uniformly arranged in the installation cavity of bottom end cover, one end of the guide rod is provided with screw thread, and the guide rod sets threaded threaded one end
It is fixed in the screwed hole that lower extension is provided with.A sliding block is sliding combined with each guide rod, between the sliding block and leg
Guide rod part be cased with compression spring, each sliding block being hinged a connecting rod, the lower end of the connecting rod is in inverted U, two walls of inverted U
It is hinged positioned at sliding block both sides, and by bearing pin with sliding block.Three rocker arm supports are fixed with the upper surface of the bottom end cover, and can
Along the radial direction adjustment position of bottom end cover.In the present embodiment, rocker arm support is fixed on bottom end cover by bolt-nut mechanism, lower end
Cover and be disposed radially kidney slot, for bolt-nut mechanism, the radially adjusted position of rocker arm support.
The rocker arm support is by the middle part of rocking arm hinge rocking arm, and the top of the rocking arm sets sanding component, sheet
In embodiment, the sanding component is fixedly mounted on the top of rocking arm.The lower end of the rocking arm allows through the waist type on upper end cover
In the axial hole that insertion small end in position hole is provided with is slided.
In the present embodiment, the epimere of the rocking arm is parallel to the axis of bottom end cover, and the hypomere of the rocking arm is along bottom end cover footpath
To outward-dipping.On the one hand, during polishing, sanding component (containing rocking arm) is by spring force, itself centrifugal force and sliding block centrifugal force, workpiece
Pressure etc. during to polishing component touch, can adjust motor speed, rocker arm support position, make sanding component axis with workpiece
At the time of diameter parallel, i.e., at the time of shown in Fig. 1, above-mentioned each power is just balanced；
On the other hand, even if sanding component axis is tilted with axis of workpiece, the certain point of sanding component axial direction connects with workpiece
Touch, but workpiece moves (speed is much smaller than sanding component revolution speed) from top to bottom, sanding component all the time can be to the whole of workpiece
Individual external cylindrical surface is polished, similar turnery processing, but workpiece does not rotate, cutter rotation；In addition, oxide scale layer is relatively crisp,
As long as one extruding will one piece of one piece comes off, the polishing operation be mainly used in remove bar blank surface oxide layer for together
Roughing process.Even if therefore, sanding component axis is tilted with axis of workpiece nor affects on polishing quality.
Operation principle is as follows：
Initial time, motor is by the low speed rotation of belt driving pulley 20, and the centrifugal force that sliding block 14 is produced is less than compression bullet
The elastic force of spring 16, sliding block 14 is moved under compression spring force effect to close to axis direction, and then is swung with motion rocker arm 11, rocking arm
11 lower ends are close to axis, and upper end causes the sanding component 10 of rocking arm upper end also away from axis, three polishing groups away from axis
The inscribed circle of part formation becomes big, and workpiece 1 to be polished now is put into from the top down, is transferred after workpiece 1 to the position for needing to polish,
Motor speed increase, sanding apparatus rotating speed also increases, with the increase of rotating speed, and the centrifugal force of sliding block 14 also gradually increases, when from
Mental and physical efforts are more than after the elastic force of compression spring 16, and sliding block 14 is moved to away from the direction of axis, and then with the lower end of motion rocker arm 11 to remote
From axial-movement, the upper end of rocking arm 11 and sanding component 10 are moved to close to axis direction together, until workpiece pressing 1, polishing group
Under the driving of frictional force of the part 10 while being revolved round the sun around axis also between workpiece 1 and sanding component 10 along own axes certainly
Turn.Due to being evenly arranged three sets of same sanding components 10 along axis, therefore the pressure that sanding component 10 applies to workpiece 1 is uniform,
And have automatic aligning effect to workpiece, and then it is effectively guaranteed polishing quality.On the one hand can be even up and down while polishing
Fast travelling workpiece 1, and then complete the feeding of the axial direction of workpiece 1；On the other hand the rotating speed of motor can be adjusted, and then completes polishing knife
Has the radial feed to workpiece 1.After the completion of polishing, motor speed is reduced, the velocity of rotation of sliding block 14 reduction, centrifugal force is reduced, when
Centrifugal force is less than after the elastic force of compression spring 16, and sliding block 14 is moved with the lower end of motion rocker arm 11 to the direction close to axis, rocking arm 11
Upper end is moved with sanding component 10 to away from axis direction, and the inscribed circle diameter of three formation of sanding component 10 becomes big, and then
Workpiece can be taken out, the polishing to a workpiece is completed.
In addition, the diameter for the workpiece that can polish as needed adjust rocker arm support 24 arrive axis distance, and then adjust three
The inscribed circle size of individual sanding component formation, makes the diameter of itself and workpiece to be polished match, so as to adapt to different-diameter work
The polishing demand of part.
The present invention is not limited solely to above-described embodiment, and the sanding component is arranged on the top of rocking arm by bearing.Beat
The two ends for grinding component apply precompression with compression spring, and certain frictional force is produced to sanding component, so that only when workpiece is fought each other
When the frictional force that mill component is produced is more than the frictional force that two ends compression spring precompression is produced to sanding component, sanding component ability
Rotation, i.e. sanding component can rotation, and can revolve round the sun.
Finally illustrate, preferred embodiment above is merely illustrative of the technical solution of the present invention and unrestricted, although logical
Cross above preferred embodiment the present invention is described in detail, it is to be understood by those skilled in the art that can be
Various changes are made to it in form and in details, without departing from claims of the present invention limited range.
Claims (10)
1. a kind of sanding apparatus, it is characterised in that including upper bracket, undersetting, and be arranged between upper bracket, undersetting
Workpiece polishing mechanism,
The workpiece polishing mechanism includes upper end cover, bottom end cover and the column for being fixed together upper end cover, bottom end cover, is formed
The frame of workpiece polishing mechanism, the upper end cover is provided with upper extension vertically, and the upper extension is by bearings in upper bracket
In the upper Positioning holes being provided with, the bottom end cover is provided with lower extension vertically, and the lower extension is by bearings under
In the lower Positioning holes that bearing is provided with, the upper end cover, upper extension are provided with the access aperture of workpiece to be polished, the lower end vertically
The outer rim of lid is provided with the leg extended downwardly, is formed between the leg, lower extension in installation cavity, the installation cavity radially
Provided with guide rod, sliding block is sliding combined with the guide rod, the guide rod part between the sliding block and leg is cased with compression spring, institute
State and a connecting rod is hinged on sliding block, the middle part that rocking arm is hinged on rocker arm support, rocker arm support, the rocking arm are fixed with the frame
Top sanding component is set, the axial hole that the lower end of the rocking arm is provided with through the resigning hole insertion connecting rod on upper end cover is slided
It is interior,
When workpiece polishing mechanism rotates, sliding block is radially slided under the elastic force effect of centrifugal force, compression spring along bottom end cover, and by even
Sanding component of the bar with motion rocker arm top is moved radially along bottom end cover.
2. a kind of sanding apparatus according to claim 1, it is characterised in that the quantity of the guide rod is three, and three are led
Bar is circumferentially uniformly arranged in the installation cavity of bottom end cover along bottom end cover, each guide rod connect respectively corresponding sliding block, connecting rod, rocking arm,
Sanding component.
3. a kind of sanding apparatus according to claim 1, it is characterised in that the sanding component is fixedly mounted on rocking arm
Top.
4. a kind of sanding apparatus according to claim 1 or 3, it is characterised in that the epimere of the rocking arm is parallel to lower end
The axis of lid, the hypomere of the rocking arm is radially outwardly sloping along bottom end cover.
5. a kind of sanding apparatus according to claim 1, it is characterised in that the bottom end cover is provided with work to be polished vertically
Another access aperture of part, the access aperture is located on same axis with the access aperture on upper end cover.
6. a kind of sanding apparatus according to claim 1, it is characterised in that the rocker arm support is fixed on the upper of bottom end cover
On end face, and can along bottom end cover radial direction adjustment position.
7. a kind of sanding apparatus according to claim 1 or 6, it is characterised in that the quantity of the column is three, three
Column is uniformly arranged along the circumference of bottom end cover, and three root posts are respectively positioned on the outside of access aperture.
8. a kind of sanding apparatus according to claim 1, it is characterised in that one end of the guide rod is provided with screw thread, described
Guide rod sets threaded threaded one end and is fixed in the screwed hole that lower extension is provided with.
9. a kind of sanding apparatus according to claim 1, it is characterised in that the lower end of the lower extension extended lower
Seat and the belt wheel for being fixed for connecting motor.
10. a kind of sanding apparatus according to claim 1, it is characterised in that sanding apparatus is used to enter before die forging process
The oxide skin of polishing bar blank.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201710749714.6A CN107309767B (en) | 2017-08-28 | 2017-08-28 | Polishing device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201710749714.6A CN107309767B (en) | 2017-08-28 | 2017-08-28 | Polishing device |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN107309767A true CN107309767A (en) | 2017-11-03 |
| CN107309767B CN107309767B (en) | 2023-06-20 |
Family
ID=60176444
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201710749714.6A Active CN107309767B (en) | 2017-08-28 | 2017-08-28 | Polishing device |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN107309767B (en) |
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108247488A (en) * | 2018-02-09 | 2018-07-06 | 阿美科福斯特惠勒动力机械有限公司 | A kind of centrifugal pipe end burnishing device |
| CN112792629A (en) * | 2021-01-12 | 2021-05-14 | 西安万翔航空科技有限公司 | Quill shaft grinding device, be used for automatic grinding equipment of cable |
| CN113681455A (en) * | 2021-09-16 | 2021-11-23 | 河南航天液压气动技术有限公司 | Grinding and polishing tool |
| CN114770255A (en) * | 2022-05-25 | 2022-07-22 | 宿州郑升轴承有限公司 | Bearing surface treatment equipment and method thereof |
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| CN105196146A (en) * | 2015-09-02 | 2015-12-30 | 兰州兰石集团有限公司 | Pneumatic polishing machine for external circles of steel pipes |
| CN106041710A (en) * | 2016-07-23 | 2016-10-26 | 佛山市南海盈伟灯饰有限公司 | Polishing mechanism for metal round bar |
| CN207058304U (en) * | 2017-08-28 | 2018-03-02 | 重庆通用航空产业集团有限公司 | A kind of sanding apparatus |
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Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108247488A (en) * | 2018-02-09 | 2018-07-06 | 阿美科福斯特惠勒动力机械有限公司 | A kind of centrifugal pipe end burnishing device |
| CN108247488B (en) * | 2018-02-09 | 2023-09-22 | 住重福惠动力机械有限公司 | Centrifugal pipe end polishing device |
| CN112792629A (en) * | 2021-01-12 | 2021-05-14 | 西安万翔航空科技有限公司 | Quill shaft grinding device, be used for automatic grinding equipment of cable |
| CN113681455A (en) * | 2021-09-16 | 2021-11-23 | 河南航天液压气动技术有限公司 | Grinding and polishing tool |
| CN114770255A (en) * | 2022-05-25 | 2022-07-22 | 宿州郑升轴承有限公司 | Bearing surface treatment equipment and method thereof |
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| CN107309767B (en) | 2023-06-20 |
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