CN108161747A - A kind of machine components grinding device - Google Patents
A kind of machine components grinding device Download PDFInfo
- Publication number
- CN108161747A CN108161747A CN201711452341.2A CN201711452341A CN108161747A CN 108161747 A CN108161747 A CN 108161747A CN 201711452341 A CN201711452341 A CN 201711452341A CN 108161747 A CN108161747 A CN 108161747A
- Authority
- CN
- China
- Prior art keywords
- guard box
- fixedly connected
- polishing
- machine components
- transfer plate
- 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.)
- Withdrawn
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
- B24B27/0015—Hanging grinding machines
-
- 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
- B24B41/02—Frames; Beds; Carriages
-
- 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
- B24B47/02—Drives or gearings; Equipment therefor for performing a reciprocating movement of carriages or work- tables
- B24B47/06—Drives or gearings; Equipment therefor for performing a reciprocating movement of carriages or work- tables by liquid or gas pressure only
-
- 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
- B24B55/00—Safety devices for grinding or polishing machines; Accessories fitted to grinding or polishing machines for keeping tools or parts of the machine in good working condition
-
- 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
- B24B55/00—Safety devices for grinding or polishing machines; Accessories fitted to grinding or polishing machines for keeping tools or parts of the machine in good working condition
- B24B55/06—Dust extraction equipment on grinding or polishing machines
Landscapes
- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Finish Polishing, Edge Sharpening, And Grinding By Specific Grinding Devices (AREA)
Abstract
The present invention relates to machine components grinding technology fields; and disclose a kind of machine components grinding device; including guard box; the quadrangle of the guard box bottom is installed with supporting rack foot; the left and right sides of the guard box offers through hole; transfer plate is provided on the left of the guard box, two through holes are sequentially passed through on the right side of the transfer plate, the right side of guard box is extended on the right side of the transfer plate.The invention; pass through the transmission of transfer plate; limitting casing can be transmitted, machine components can be fixed for limitting casing, prevent from deviating during polishing; guard box can effectively prevent clast in bruting process and splash; by the unlatching of water pump, water can be added in into vertical tube by flow pipe, sparge pipe can be sprayed water in the form of water mist; clast in air is settled down, clast splashes during more effectively preventing polishing.
Description
Technical field
The present invention relates to machine components grinding technology field, specially a kind of machine components grinding device.
Background technology
The reciprocating grinder for polishing of sander is widely used in the finishing of die industry and surface polishing treatment, is a
There are some relevant producers successively currently on the market in the substitute of similar pneumatic product, and can be divided into has dirt and dustless two kinds,
There is dirt polishing, when being polished, although improving efficiency, machine price is also slightly cheap, and dust is solved again without method,
And dustless polishing, the slow-footed problem of polishing just is not only solved, and also solve the generation of dust.
With the maturation of present machined part technology, many specific mechanicals are provided with specific machine tool,
During machine tool is processed, polishing is critically important, in existing machine components bruting process, can be generated many broken
Bits splash, and easily cause worker injuries, so a kind of machine components grinding device is proposed to solve the problems, such as above-mentioned propose.
Invention content
（One）The technical issues of solution
In view of the deficiencies of the prior art, the present invention provides a kind of machine components grinding devices, and having more can effectively prevent from beating
The advantages of clast splashes during mill, solves in existing machine components bruting process, can generate many clasts and splash,
The problem of easily causing worker injuries.
（Two）Technical solution
To realize the above-mentioned purpose that more can effectively prevent clast splashing during polishing, the present invention provides following technical side
Case：A kind of machine components grinding device, including guard box, the quadrangle of the guard box bottom is installed with supporting rack foot,
The left and right sides of the guard box offers through hole, and transfer plate is provided on the left of the guard box, the transfer plate
Right side sequentially passes through two through holes, and the right side of guard box is extended on the right side of the transfer plate, is opened at the top of the transfer plate
Equipped with the leakage hole being spaced substantially equidistant, equally distributed limitting casing, the top of the guard box are fixedly connected on the transfer plate
Driving motor is provided with, the output pumping of the driving motor is fixedly connected with transmission shaft, and the bottom end of the transmission shaft is run through and prolonged
The inside of guard box is extended to, the bottom end of the transmission shaft is fixedly connected with polishing plate, and the inner bottom wall of the guard box offers ring
Shape sliding slot, there are two sliding block, the bottoms of two sliding blocks has been fixedly connected with for the internal slide connection of the annular groove
One hinged seat, the bottom of two first hinged seats are hinged with hydraulic telescopic rod, the bottom end of two hydraulic telescopic rods
The second hinged seat is hinged with, two opposite sides of second hinged seat have been fixedly connected with arc panel, two arcs
The top of shape plate is hinged with third hinged seat, and two third hinged seat opposite side sides are fixedly connected with transmission shaft,
Equally distributed polishing ball is fixedly connected on the inside of two arc panels, two arc panels are respectively positioned on limitting casing
Top, has been fixedly connected with water pump at left and right sides of the guard box, and the tops of two water pumps is communicated with drinking-water pipe, and two
The opposite side of a water pump is communicated with flow pipe, and the opposite one end of two flow pipes is run through and extends to protection
The inside of case states the opposite one end of flow pipe and is communicated with vertical tube described in two, two opposite sides of the vertical tube connect
There is the sparge pipe being spaced substantially equidistant.
Preferably, two vertical tubes are respectively positioned on the top of limitting casing, and to be respectively positioned on two arc panels opposite for two vertical tubes
Side.
Preferably, the polishing plate is arc polishing plate, and the bottom for plate of polishing is fixedly connected with matte board, and plate position of polishing
Between two arc panels.
Preferably, reinforcing bar has been fixedly connected at left and right sides of the driving motor, and the bottom end of two reinforcing bars is equal
It is fixedly connected at the top of guard box.
Preferably, the limitting casing includes two vertical rods and horizon bar and forms, and the positive both sides of horizon bar with it is vertical
Bar is fixedly connected by screw.
Preferably, the left and right sides of the guard box bottom is communicated with discharge pipe, and two discharge pipes are respectively positioned on four
Between supporting rack foot.
（Three）Advantageous effect
Compared with prior art, the present invention provides a kind of machine components grinding device, has following advantageous effect：
Limitting casing by the transmission of transfer plate, can be transmitted by the 1st, the machine components grinding device, and limitting casing can be by machine
Tool part is fixed, and prevents from deviating during polishing, guard box can effectively prevent clast in bruting process and fly
It splashes, by the unlatching of water pump, water can be added in into vertical tube by flow pipe, sparge pipe can be sprayed water in the form of water mist
Go out, the clast in air is settled down, clast splashes during more effectively preventing polishing.
2nd, the machine components grinding device by opening driving motor, can drive transmission shaft to rotate, and polishing plate can occur one
Fixed deformation is in contact with machine components polishes, and the rotation of transmission shaft can be slided with movable slider in annular groove
It is dynamic, by the elongation and shortening of hydraulic telescopic rod, the angle of arc panel can be adjusted, polishing ball can improve the efficiency of polishing,
Clast splashes during more effectively preventing polishing.
Description of the drawings
Fig. 1 is schematic structural view of the invention；
Fig. 2 is the structure diagram that annular groove of the present invention is connected with sliding block.
In figure：1 guard box, 2 supporting rack feet, 3 through holes, 4 transfer plates, 5 leakage holes, 6 limitting casings, 7 driving motors, 8 transmissions
Axis, 9 polishing plates, 10 annular grooves, 11 sliding blocks, 12 first hinged seats, 13 hydraulic telescopic rods, 14 second hinged seats, 15 arc panels,
16 third hinged seats, 17 polishing balls, 18 water pumps, 19 drinking-water pipes, 20 flow pipes, 21 vertical tubes, 22 sparge pipes.
Specific embodiment
Below in conjunction with the attached drawing in the embodiment of the present invention, the technical solution in the embodiment of the present invention is carried out clear, complete
Site preparation describes, it is clear that described embodiment is only part of the embodiment of the present invention, instead of all the embodiments.It is based on
Embodiment in the present invention, those of ordinary skill in the art are obtained every other without making creative work
Embodiment shall fall within the protection scope of the present invention.
- 2 are please referred to Fig.1, a kind of machine components grinding device, including guard box 1, the quadrangle of 1 bottom of guard box is fixed
Supporting rack foot 2 is installed, the left and right sides of 1 bottom of guard box is communicated with discharge pipe, and two discharge pipes are respectively positioned on four branch
Between support foot 2, the left and right sides of guard box 1 offers through hole 3, and the left side of guard box 1 is provided with transfer plate 4, transmission
The right side of plate 4 sequentially passes through two through holes 3, and the right side of transfer plate 4 extends to the right side of guard box 1, and the top of transfer plate 4 is opened
Equipped with the leakage hole 5 being spaced substantially equidistant, equally distributed limitting casing 6 is fixedly connected on transfer plate 4, limitting casing 6 includes two and hangs down
Straight-bar and horizon bar are formed, and the positive both sides of horizon bar are fixedly connected with vertical rod by screw, and the top of guard box 1 is set
Be equipped with driving motor 7, the left and right sides of driving motor 7 has been fixedly connected with reinforcing bar, and the bottom end of two reinforcing bars with guarantor
The top of protecting box 1 is fixedly connected, and the output pumping of driving motor 7 is fixedly connected with transmission shaft 8, and the bottom end of transmission shaft 8 is run through and prolonged
The inside of guard box 1 is extended to, the bottom end of transmission shaft 8 is fixedly connected with polishing plate 9, and the inner bottom wall of guard box 1 offers annular cunning
Slot 10, there are two sliding blocks 11 for the internal slide connection of annular groove 10, and the bottom of two sliding blocks 11 has been fixedly connected with the first hinge
Joint chair 12, the bottom of two the first hinged seats 12 are hinged with hydraulic telescopic rod 13, and the bottom end of two hydraulic telescopic rods 13 is cut with scissors
The second hinged seat 14 is connected to, two opposite sides of the second hinged seat 14 have been fixedly connected with arc panel 15, and polishing plate 9 is arc
Polishing plate, the bottom of polishing plate 9 is fixedly connected with matte board, and plate 9 of polishing is located between two arc panels 15, two arc panels
15 top is hinged with third hinged seat 16, and two 16 opposite side sides of third hinged seat are fixedly connected with transmission shaft 8, and two
The inside of a arc panel 15 has been fixedly connected with equally distributed polishing ball 17, by opening driving motor 7, can drive transmission shaft
Certain deformation can occur for 8 rotations, polishing plate 9 are in contact with machine components to polish, and the rotation of transmission shaft 8 can drive cunning
Block 11 slides in annular groove 10, by the elongation and shortening of hydraulic telescopic rod 13, can adjust the angle of arc panel 15
Degree, polishing ball 17 can improve the efficiency of polishing, and clast splashes during more effectively preventing polishing, two arc panels 15
The top of limitting casing 6 is respectively positioned on, the left and right sides of guard box 1 has been fixedly connected with water pump 18, and the top of two water pumps 18 connects
Drinking-water pipe 19 is connected with, the opposite side of two water pumps 18 is communicated with flow pipe 20, and two opposite one end of flow pipe 20 are passed through
The inside of guard box 1 is worn and extended to, the opposite one end of flow pipe 20 is stated for two and is communicated with vertical tube 21, two 21 equal positions of vertical tube
In the top of limitting casing 6, and two vertical tubes 21 are respectively positioned on two opposite sides of arc panel 15, the opposite side of two vertical tubes 21
The sparge pipe 22 being spaced substantially equidistant is communicated with, by the transmission of transfer plate 4, limitting casing 6 can be transmitted, limitting casing 6
Machine components can be fixed, prevent from deviating during polishing, guard box 1 can effectively prevent bruting process
Middle clast splashes, and by the unlatching of water pump 18, can add in water into vertical tube 21 by flow pipe 20, sparge pipe 22 can be by water
It is sprayed in the form of water mist, the clast in air is settled down, clast splashes during more effectively preventing polishing.
When in use, by the transmission of transfer plate 4, limitting casing 6 can be transmitted, limitting casing 6 can be by machinery zero
Part is fixed, and prevents from deviating during polishing, and guard box 1 can effectively prevent clast in bruting process and splash,
By the unlatching of water pump 18, water can be added in into vertical tube 21 by flow pipe 20, sparge pipe 22 can be by water with the shape of water mist
Formula sprays, and the clast in air is settled down, and clast splashes during more effectively preventing polishing, is driven by opening
Motor 7 can drive transmission shaft 8 to rotate, and certain deformation can occur for polishing plate 9 be in contact with machine components to polish, transmission
The rotation of axis 8 can be slided with movable slider 11 in annular groove 10, can by the elongation and shortening of hydraulic telescopic rod 13
To adjust the angle of arc panel 15, polishing ball 17 can improve the efficiency of polishing, more can effectively prevent broken during polishing
Bits splash.
In conclusion limitting casing 6, by the transmission of transfer plate 4, can be transmitted by the machine components grinding device,
Machine components can be fixed for limitting casing 6, prevent from deviating during polishing, guard box 1 can effectively prevent
Clast splashes in bruting process, by the unlatching of water pump 18, can add in water, sparge pipe 22 into vertical tube 21 by flow pipe 20
Water in the form of water mist can be sprayed, the clast in air is settled down, more can effectively prevented broken during polishing
Bits splash.
Also, by opening driving motor 7, transmission shaft 8 can be driven to rotate, certain deformation and machine can occur for polishing plate 9
Tool part, which is in contact, polishes, and the rotation of transmission shaft 8 can be slided with movable slider 11 in annular groove 10, pass through liquid
The elongation and shortening of telescopic rod 13 are pressed, the angle of arc panel 15 can be adjusted, polishing ball 17 can improve the efficiency of polishing, more can
It is effective prevent polishing during clast splash, solve in existing machine components bruting process, can generate many broken
The problem of considering to be worth doing and splash, easily causing worker injuries.
It should be noted that herein, relational terms such as first and second and the like are used merely to a reality
Body or operation are distinguished with another entity or operation, are deposited without necessarily requiring or implying between these entities or operation
In any this practical relationship or sequence.Moreover, term " comprising ", "comprising" or its any other variant are intended to
Non-exclusive inclusion, so that process, method, article or equipment including a series of elements not only will including those
Element, but also including other elements that are not explicitly listed or further include as this process, method, article or equipment
Intrinsic element.In the absence of more restrictions, the element limited by sentence "including a ...", it is not excluded that
Also there are other identical elements in process, method, article or equipment including the element.
It although an embodiment of the present invention has been shown and described, for the ordinary skill in the art, can be with
Understanding without departing from the principles and spirit of the present invention can carry out these embodiments a variety of variations, modification, replace
And modification, the scope of the present invention is defined by the appended.
Claims (6)
1. a kind of machine components grinding device, including guard box（1）, it is characterised in that：The guard box（1）The quadrangle of bottom is equal
It is installed with supporting rack foot（2）, the guard box（1）The left and right sides offer through hole（3）, the guard box（1）
Left side be provided with transfer plate（4）, the transfer plate（4）Right side sequentially pass through two through holes（3）, the transfer plate（4）
Right side extend to guard box（1）Right side, the transfer plate（4）Top offer the leakage hole being spaced substantially equidistant（5）, it is described
Transfer plate（4）On be fixedly connected with equally distributed limitting casing（6）, the guard box（1）Top be provided with driving motor
（7）, the driving motor（7）Output pumping be fixedly connected with transmission shaft（8）, the transmission shaft（8）Bottom end run through and extend
To guard box（1）Inside, the transmission shaft（8）Bottom end be fixedly connected with polishing plate（9）, the guard box（1）Interior bottom
Wall offers annular groove（10）, the annular groove（10）Internal slide connection there are two sliding block（11）, two cunnings
Block（11）Bottom be fixedly connected with the first hinged seat（12）, two first hinged seats（12）Bottom be hinged with liquid
Press telescopic rod（13）, two hydraulic telescopic rods（13）Bottom end be hinged with the second hinged seat（14）, two described second
Hinged seat（14）Opposite side has been fixedly connected with arc panel（15）, two arc panels（15）Top be hinged with
Three hinged seats（16）, two third hinged seats（16）Opposite side side is and transmission shaft（8）It is fixedly connected, two arcs
Shape plate（15）Inside be fixedly connected with equally distributed polishing ball（17）, two arc panels（15）It is respectively positioned on limitting casing
（6）Top, the guard box（1）The left and right sides be fixedly connected with water pump（18）, two water pumps（18）Top
It is communicated with drinking-water pipe（19）, two water pumps（18）Opposite side is communicated with flow pipe（20）, water is sent described in two
Pipe（20）Opposite one end is run through and extends to guard box（1）Inside, state flow pipe described in two（20）Opposite one end
It is communicated with vertical tube（21）, two vertical tubes（21）Opposite side is communicated with the sparge pipe being spaced substantially equidistant（22）.
2. a kind of machine components grinding device according to claim 1, it is characterised in that：Two vertical tubes（21）Equal position
In limitting casing（6）Top, and two vertical tubes（21）It is respectively positioned on two arc panels（15）Opposite side.
3. a kind of machine components grinding device according to claim 1, it is characterised in that：The polishing plate（9）For arc
Polishing plate, plate of polishing（9）Bottom be fixedly connected with matte board, and plate of polishing（9）Positioned at two arc panels（15）Between.
4. a kind of machine components grinding device according to claim 1, it is characterised in that：The driving motor（7）A left side
Right both sides have been fixedly connected with reinforcing bar, and the bottom end of two reinforcing bars is and guard box（1）Top be fixedly connected.
5. a kind of machine components grinding device according to claim 1, it is characterised in that：The limitting casing（6）Including two
A vertical rod and horizon bar are formed, and the positive both sides of horizon bar are fixedly connected with vertical rod by screw.
6. a kind of machine components grinding device according to claim 1, it is characterised in that：The guard box（1）Bottom
The left and right sides is communicated with discharge pipe, and two discharge pipes are respectively positioned on four supporting rack feet（2）Between.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201711452341.2A CN108161747A (en) | 2017-12-28 | 2017-12-28 | A kind of machine components grinding device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201711452341.2A CN108161747A (en) | 2017-12-28 | 2017-12-28 | A kind of machine components grinding device |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN108161747A true CN108161747A (en) | 2018-06-15 |
Family
ID=62518752
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201711452341.2A Withdrawn CN108161747A (en) | 2017-12-28 | 2017-12-28 | A kind of machine components grinding device |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN108161747A (en) |
Cited By (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108857251A (en) * | 2018-07-11 | 2018-11-23 | 祖全达 | A kind of power construction place track laying pipeline the service of connection devices |
| CN110732895A (en) * | 2019-10-31 | 2020-01-31 | 安徽科瑞特模塑有限公司 | pressing and positioning device for processing automobile bumpers |
| CN111546181A (en) * | 2020-05-13 | 2020-08-18 | 重庆小马智诚科技有限责任公司 | Part grinding device |
| CN111843710A (en) * | 2020-08-07 | 2020-10-30 | 张云 | Grinding device is used in processing of plastic ball based on it is spacing to extrude |
| CN113231974A (en) * | 2021-05-17 | 2021-08-10 | 夏明芳 | Precision machining jig for optical instrument foot rest |
| CN114043357A (en) * | 2022-01-11 | 2022-02-15 | 云奕智创航空科技(南通)有限公司 | Unmanned aerial vehicle fixed wing grinding device |
-
2017
- 2017-12-28 CN CN201711452341.2A patent/CN108161747A/en not_active Withdrawn
Cited By (10)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108857251A (en) * | 2018-07-11 | 2018-11-23 | 祖全达 | A kind of power construction place track laying pipeline the service of connection devices |
| CN108857251B (en) * | 2018-07-11 | 2020-11-06 | 温州职业技术学院 | Circuit laying pipeline butt joint equipment for electric power construction site |
| CN110732895A (en) * | 2019-10-31 | 2020-01-31 | 安徽科瑞特模塑有限公司 | pressing and positioning device for processing automobile bumpers |
| CN111546181A (en) * | 2020-05-13 | 2020-08-18 | 重庆小马智诚科技有限责任公司 | Part grinding device |
| CN111546181B (en) * | 2020-05-13 | 2021-08-03 | 重庆小马智诚科技有限责任公司 | Part grinding device |
| CN111843710A (en) * | 2020-08-07 | 2020-10-30 | 张云 | Grinding device is used in processing of plastic ball based on it is spacing to extrude |
| CN113231974A (en) * | 2021-05-17 | 2021-08-10 | 夏明芳 | Precision machining jig for optical instrument foot rest |
| CN113231974B (en) * | 2021-05-17 | 2023-12-26 | 深圳市飞尔光学技术有限公司 | Precision machining jig for optical instrument foot rest |
| CN114043357A (en) * | 2022-01-11 | 2022-02-15 | 云奕智创航空科技(南通)有限公司 | Unmanned aerial vehicle fixed wing grinding device |
| CN114043357B (en) * | 2022-01-11 | 2022-03-11 | 云奕智创航空科技(南通)有限公司 | Unmanned aerial vehicle fixed wing grinding device |
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| Date | Code | Title | Description |
|---|---|---|---|
| PB01 | Publication | ||
| PB01 | Publication | ||
| SE01 | Entry into force of request for substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| WW01 | Invention patent application withdrawn after publication | ||
| WW01 | Invention patent application withdrawn after publication |
Application publication date: 20180615 |