CN111215975A - Bearing inner race grinding device - Google Patents
Bearing inner race grinding device Download PDFInfo
- Publication number
- CN111215975A CN111215975A CN202010153683.XA CN202010153683A CN111215975A CN 111215975 A CN111215975 A CN 111215975A CN 202010153683 A CN202010153683 A CN 202010153683A CN 111215975 A CN111215975 A CN 111215975A
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- CN
- China
- Prior art keywords
- cavity
- shaft
- gear
- lifting
- fixedly connected
- 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.)
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Classifications
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- 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
- B24B5/01—Machines or devices designed for grinding surfaces of revolution on work, including those which also grind adjacent plane surfaces; Accessories therefor for combined grinding of surfaces of revolution and of adjacent plane surfaces on work
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- 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
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- 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
- B24B41/067—Work supports, e.g. adjustable steadies radially supporting workpieces
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- 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
- B24B5/355—Feeding means
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- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Constituent Portions Of Griding Lathes, Driving, Sensing And Control (AREA)
Abstract
The invention discloses a bearing outer ring polishing device which comprises a shell, wherein a feeding cavity with an upper end opening communicated with the outside is arranged in the shell, a placing disc is connected in the feeding cavity in a sliding manner, an inner polishing cavity is arranged in the shell, a fixed gear is rotationally connected in the inner polishing cavity, four rotating pins are rotationally connected on the fixed gear, a fixed rod is rotationally connected on each rotating pin and can fix a bearing outer ring, an outer polishing gear is arranged in the shell, two inner polishing blocks are arranged at the hollow part in the outer polishing gear and can polish the outer end surface of the bearing outer ring, a lifting shaft is arranged in the shell and is fixedly connected with a lifting disc, a lifting rod is slidably connected in the lifting cavity, a lifting rod groove is arranged in the lifting rod, and a rotating pin positioned in the lifting rod groove is rotationally connected on the left end surface of the lifting disc, the upper end face of the lifting rod is fixedly connected with a moving shaft, and the upper end of the moving shaft penetrates through the placing disc.
Description
Technical Field
The invention relates to the technical field of bearings, in particular to a bearing outer ring polishing device.
Background
Bearing inner race need polish in the course of working, and traditional race is polished and is adopted the manual work to polish, so not only polish inefficiency to the manual work is polished and can not guarantee the quality of polishing, influences the quality of final fashioned bearing, and current bearing inner race grinding device can't polish simultaneously to the interior external surface of outer lane, and this need consume more time, has influenced bearing production efficiency.
Disclosure of Invention
The invention aims to provide a bearing outer ring polishing device which is used for overcoming the defects in the prior art.
The bearing outer ring polishing device comprises a shell, a feeding cavity with an upper end opening communicated with the outside is arranged in the shell, a placing disc is connected in the feeding cavity in a sliding mode, the placing disc is used for placing a bearing outer ring, a fixed polishing mechanism is arranged in the shell and comprises an inner polishing cavity arranged in the shell, a fixed gear is connected in the inner polishing cavity in a rotating mode, four rotating pins are connected on the fixed gear in a rotating mode, fixing rods are connected on the rotating pins in a rotating mode and can fix the bearing outer ring, a polishing mechanism is arranged in the shell and is connected with an outer polishing gear with a hollow middle in a rotating mode, two inner polishing blocks are arranged in the hollow position of the outer polishing gear, the inner polishing blocks can polish the outer end face of the bearing outer ring, and a transmission mechanism is arranged in the shell, the lifting mechanism comprises a transmission mechanism, and is characterized in that a driving motor is fixedly connected to the lower end wall of the transmission mechanism, a lifting cavity is arranged in the casing, a lifting power cavity is arranged in the casing, a lifting motor is fixedly connected to the right end wall of the lifting power cavity, the left end of the lifting motor is in power connection with a lifting shaft in the lifting cavity, a lifting disc is fixedly connected to the lifting shaft, a lifting rod is slidably connected to the lifting cavity, a lifting rod groove is formed in the lifting rod, the left end face of the lifting disc is rotatably connected with a rotating pin in the lifting rod groove, and the upper end of the upper end face of the lifting rod is fixedly connected with a moving shaft for.
On the basis of the technical scheme, the transmission mechanism comprises a driving shaft which is in power connection with the driving motor, a ratchet wheel is arranged at the upper end of the driving shaft, a ratchet wheel shaft is arranged at the upper end of the lock ratchet wheel, a driving gear is fixedly connected at the lower end of the driving shaft, a rotating gear is fixedly connected at the upper end of the ratchet wheel shaft, a transmission shaft with the upper end positioned in the outer polishing cavity is rotatably connected at the lower end of the driving shaft, a rotating gear meshed with the rotating gear is fixedly connected at the lower end of the driving cavity, a winding gear meshed with the driving gear is fixedly connected at the lower end of the rotating shaft, a ratchet wheel is arranged at the upper end of the rotating shaft, a driving pulley shaft is arranged at the upper end of the left ratchet wheel, a driving pulley is fixedly connected at the upper end of the driving pulley shaft, and a transmission belt for connecting the driven belt wheel and the driving belt wheel is arranged in the shell.
On the basis of the technical scheme, the fixed polishing mechanism comprises a limit groove arranged in the fixed rod, the upper end wall of the inner grinding cavity is rotationally connected with a limiting pin with the lower end positioned in the limiting groove, a fixed gear cavity is arranged in the driving gear, the fixed gear cavity can pass through the placing disc, the upper end wall of the inner grinding cavity is fixedly connected with a fixed motor, the fixed motor is connected with a fixed motor shaft in a power mode, the lower end of the fixed motor shaft is fixedly connected with a driving gear, a cylindrical cavity is arranged in the moving shaft, two rotating blocks are arranged at the upper end of the moving shaft, a translation block is connected in the translation cavity in a sliding way, the translation intracavity is equipped with the connection the translation piece with the translation spring of rotatory piece, the translation piece is kept away from removal axle one end fixedly connected with interior grinding block fixed connection's connecting block, translation piece fixedly connected with other end with driven pulley fixed connection's connecting rope.
On the basis of the technical scheme, the polishing mechanism comprises an outer polishing gear cavity arranged in the outer polishing gear, the left end wall of the outer polishing gear cavity is fixedly connected with an electromagnet, a moving block is slidably connected in the outer polishing gear cavity, and the right end of the moving block is located in an inner polishing block in the feeding cavity.
On the basis of the technical scheme, the fixed rod can fix the bearing, and the ratchet wheel does not work in a reverse rotation mode.
The invention has the beneficial effects that: according to the invention, the inner and outer end surfaces of the bearing outer ring are polished by arranging the inner polishing block and the outer polishing block without two-step treatment, and the bearing outer ring with a certain size can be polished to realize flexible manufacturing.
Drawings
In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the drawings needed in the embodiments will be briefly described below, and it is obvious that the drawings in the following description are only some embodiments of the present invention, and it is obvious for those skilled in the art to obtain other drawings without creative efforts.
FIG. 1 is a schematic structural view of a bearing outer ring grinding device according to the present invention;
3 FIG. 32 3 is 3 an 3 enlarged 3 view 3 of 3 the 3 structure 3 at 3 A 3- 3 A 3 in 3 FIG. 31 3 according 3 to 3 an 3 embodiment 3 of 3 the 3 present 3 invention 3; 3
FIG. 3 is an enlarged view of the structure at B in FIG. 1 according to an embodiment of the present invention.
Detailed Description
The invention will now be described in detail with reference to fig. 1-3, for the sake of convenience, the orientations described hereinafter being defined as follows: the up, down, left, right, and front-back directions described below correspond to the up, down, left, right, and front-back directions in the projection relationship of fig. 1 itself.
Referring to fig. 1 to 3, a bearing outer ring grinding device according to an embodiment of the present invention includes a casing 10, a feeding cavity 30 having an upper end opening communicating with the outside is provided in the casing 10, a placing disc 62 is slidably connected in the feeding cavity 30, the placing disc 62 places a bearing outer ring, a fixed grinding mechanism 63 is provided in the casing 10, the fixed grinding mechanism 63 includes an inner grinding cavity 24 provided in the casing 10, a fixed gear 26 is rotatably connected in the inner grinding cavity 24, four rotating pins 25 are rotatably connected to the fixed gear 26, a fixing rod 29 is rotatably connected to the rotating pins 25, the fixing rod 29 can fix the bearing outer ring, a grinding mechanism 64 is provided in the casing 10, an outer grinding gear 23 having a hollow middle is rotatably connected to the grinding mechanism 64, two inner grinding blocks 66 are provided at a hollow position in the outer grinding gear 23, interior grinding block 66 can polish the outer terminal surface of bearing inner race, be equipped with drive mechanism 65 in the casing 10, end wall fixedly connected with driving motor 48 under drive mechanism 65, be equipped with lift chamber 11 in the casing 10, be equipped with lift power chamber 13 in the casing 10, lift power chamber 13 right-hand member wall fixedly connected with elevator motor 15, elevator motor 15 power connection has the left end to be located lift axle 14 in lift chamber 11, lift axle 14 fixedly connected with lift disc 12, sliding connection has lifter 16 in lift chamber 11, be equipped with lifter groove 17 in the lifter 16, the rotation of lift disc 12 left end face is connected with and is located the live pin 18 in lifter groove 17, lifter 16 up end fixedly connected with upper end runs through place the removal axle 67 of disc 62.
In addition, in one embodiment, the transmission mechanism 65 includes a driving shaft 47 to which the driving motor 48 is power connected, a ratchet wheel 45 is provided at an upper end of the driving shaft 47, a ratchet wheel shaft 46 is provided at an upper end of the locking ratchet wheel 45, a driving gear 49 is fixedly connected to a lower end of the driving shaft 47, a rotating gear 44 is fixedly connected to an upper end of the ratchet wheel shaft 46, a transmission shaft 41 having an upper end located in the outer polishing chamber 19 is rotatably connected to a lower end of the driving chamber 42, a rotating gear 43 engaged with the rotating gear 44 is fixedly connected to a lower end of the transmission shaft 41, a rotating shaft 51 is rotatably connected to a lower end of the driving chamber 42, a rotating gear 50 engaged with the driving gear 49 is fixedly connected to a lower end of the rotating shaft 51, a ratchet wheel 45 is provided at an upper end of the rotating shaft 51, a driving pulley shaft 52 is provided, the lower end surface wall of the feeding cavity 30 is rotatably connected with a driven belt wheel 32 which is connected with the moving shaft 67 in a sliding manner, and a transmission belt 33 which is connected with the driven belt wheel 32 and the driving belt wheel 53 is arranged in the machine shell 10.
In addition, in one embodiment, the fixed polishing mechanism 63 includes a limit groove 28 disposed in the fixed rod 29, the upper end wall of the inner polishing cavity 24 is rotatably connected with a limit pin 27 having a lower end located in the limit groove 28, a fixed gear cavity 31 is disposed in the driving gear 35, the fixed gear cavity 31 can pass through the placing disc 62, the upper end wall of the inner polishing cavity 24 is fixedly connected with a fixed motor 37, the fixed motor 37 is dynamically connected with a fixed motor shaft 38, the lower end of the fixed motor shaft 38 is fixedly connected with the driving gear 35, a cylindrical cavity 57 is disposed in the moving shaft 67, two rotating blocks 59 are disposed at the upper end of the moving shaft 67, a translation block 54 is slidably connected in the translation cavity 58, a translation spring 55 for connecting the translation block 54 and the rotating block 59 is disposed in the translation cavity 58, a connecting block 60 fixedly connected with the inner polishing block 61 is fixedly connected to one end of the translation block 54 away from the moving shaft 67, the translation block 54 is fixedly connected with a connecting rope 56, the other end of which is fixedly connected with the driven pulley 32.
In addition, in one embodiment, the grinding mechanism 64 includes an outer grinding gear cavity 20 provided in the outer grinding gear 23, the electromagnet 36 is fixedly connected to the left end wall of the outer grinding gear cavity 20, a moving block 21 is slidably connected to the outer grinding gear cavity 20, and an inner grinding block 66 with the right end located in the feeding cavity 30 is fixedly connected to the moving block 21.
In addition, in one embodiment, the fixing rod 29 can fix the bearing, and the ratchet wheel 45 does not work in reverse rotation.
In the initial state, the fixing rod 29 is not in the feeding cavity 30, the inner grinding block 66 is not in the feeding cavity 30, the placing disc 62 is at the highest position, and the translation spring 55 is in a compressed state.
When the outer ring of the bearing is polished, the outer ring of the bearing is sleeved on the moving shaft 67, the lifting motor 15 is started to output power, the lifting shaft 14 is driven to rotate for a quarter circle, the lifting disc 12 is driven to rotate for a quarter circle, the rotating pin 18 is driven to descend, the lifting rod 16, the lifting plate 34 and the moving shaft 67 are driven to move downwards until the bearing is flush with the fixed rod 29, meanwhile, in the descending process, the connecting rope 56 is loosened, the translation block 54 drives the connecting block 60 and the inner polishing block 61 to move outwards under the elastic force of the translation spring 55, so that the inner polishing block 61 is abutted against the inner end face of the outer ring of the bearing, the fixed motor 37 is started to output power, the fixed motor shaft 38 is driven to rotate, the driving gear 35 is driven to rotate, the fixed gear 26 is driven to rotate, the fixed rod 29 fixes the outer ring of the bearing, thereby driving the driving shaft 47 to rotate reversely, the driving shaft 47 does not drive the right-side ratchet wheel 45 to rotate when rotating reversely, the driving shaft 47 rotates reversely to drive the winding gear 50 to rotate forwardly, thereby driving the rotating shaft 51 to rotate forwardly, the left-side ratchet wheel 45 drives the driving pulley shaft 52 to rotate, thereby driving the driving pulley 53 to rotate, thereby driving the driven pulley 32 to rotate through the driving belt 33, thereby driving the driving pulley 53 to rotate, thereby driving the moving shaft 67 to rotate, thereby driving the rotating block 59 to rotate, thereby driving the inner grinding block 61 to rotate, thereby grinding the inner end surface of the bearing outer ring;
after the inner end surface is polished, the fixed motor 37 is started to output power reversely, the fixed motor shaft 38 is driven to rotate reversely, the driving gear 35 is driven to rotate, the fixed gear 26 is driven to rotate, the fixed rod 29 leaves the feeding cavity 30, the bearing outer ring is not fixed, the lifting motor 15 starts to output power, the lifting shaft 14 is driven to rotate for a quarter circle continuously, the lifting disc 12 is driven to rotate for a quarter circle, the rotating pin 18 is driven to descend, the lifting rod 16, the lifting plate 34 and the moving shaft 67 are driven to move downwards until the bearing is flush with the inner polishing block 66, meanwhile, in the descending process, the connecting rope 56 is continuously loosened, the translation block 54 drives the connecting block 60 and the inner polishing block 61 to move outwards under the elastic force of the translation spring 55, the inner polishing block 61 is abutted against the inner end surface of the bearing outer ring to fix the bearing outer ring, and the driving motor 48 is started to output, thereby driving the driving shaft 47 to rotate positively, the driving shaft 47 rotates positively to drive the driving gear 49 to rotate positively, thereby driving the winding gear 50 to rotate positively, thereby driving the rotating shaft 51 to rotate positively, at this time, the left side ratchet wheel 45 does not work, the driving shaft 47 rotates positively to drive the right side ratchet wheel 45 to rotate positively, thereby driving the ratchet wheel shaft 46 to rotate, thereby driving the transmission shaft 41 to rotate, thereby driving the transmission gear 40 to rotate, thereby driving the outer grinding gear 23 to rotate, starting the electromagnet 36 to push the moving block 21 to move inwards, thereby driving the connecting rod 22 and the inner grinding block 66 to move inwards to abut against the outer end face of the outer ring of the bearing, at this time, the inner grinding block 66 rotates along with the outer grinding gear 23, and the inner grinding;
after polishing, the driving motor 48 is turned off, the starting electromagnet 36 does not repel but attracts the moving block 21 to drive the inner polishing block 66 to return to the initial position, the lifting motor 15 is started to output power to drive the lifting shaft 14 to rotate for a half circle, so that the lifting disc 12 is driven to rotate for a half circle, the rotating pin 18, the lifting rod 16, the lifting plate 34, the moving shaft 67 and the placing disc 62 are driven to return to the initial position, the outer ring of the artificial curve bearing is used, and the device is reset.
The invention has the beneficial effects that: according to the invention, the inner and outer end surfaces of the bearing outer ring are polished by arranging the inner polishing block and the outer polishing block without two-step treatment, and the bearing outer ring with a certain size can be polished to realize flexible manufacturing.
The above description is only for the purpose of illustrating the preferred embodiments of the present invention and is not to be construed as limiting the invention, and any modifications, equivalents, improvements and the like that fall within the spirit and principle of the present invention are intended to be included therein.
Claims (5)
1. A bearing outer ring polishing device comprises a shell, wherein a feeding cavity with an upper end opening communicated with the outside is arranged in the shell, a placing disc is connected in the feeding cavity in a sliding manner and is used for placing a bearing outer ring, a fixed polishing mechanism is arranged in the shell and comprises an inner polishing cavity arranged in the shell, a fixed gear is rotationally connected in the inner polishing cavity, four rotating pins are rotationally connected on the fixed gear, a fixed rod is rotationally connected on the rotating pins and can fix the bearing outer ring, a polishing mechanism is arranged in the shell and is rotationally connected with an outer polishing gear with a hollow middle part, two inner polishing blocks are arranged at the hollow part in the outer polishing gear, the inner polishing blocks can polish the outer end surface of the bearing outer ring, and a transmission mechanism is arranged in the shell, the lifting mechanism comprises a transmission mechanism, and is characterized in that a driving motor is fixedly connected to the lower end wall of the transmission mechanism, a lifting cavity is arranged in the casing, a lifting power cavity is arranged in the casing, a lifting motor is fixedly connected to the right end wall of the lifting power cavity, the left end of the lifting motor is in power connection with a lifting shaft in the lifting cavity, a lifting disc is fixedly connected to the lifting shaft, a lifting rod is slidably connected to the lifting cavity, a lifting rod groove is formed in the lifting rod, the left end face of the lifting disc is rotatably connected with a rotating pin in the lifting rod groove, and the upper end of the upper end face of the lifting rod is fixedly connected with a moving shaft for.
2. The bearing outer ring grinding device according to claim 1, wherein: the transmission mechanism comprises a driving shaft which is in power connection with the driving motor, a ratchet wheel is arranged at the upper end of the driving shaft, a ratchet wheel shaft is arranged at the upper end of the locking ratchet wheel, the lower end of the driving shaft is fixedly connected with a driving gear, the upper end of the ratchet shaft is fixedly connected with a rotating gear, the lower end wall of the driving cavity is rotatably connected with a transmission shaft the upper end of which is positioned in the outer polishing cavity, the lower end of the transmission shaft is fixedly connected with a rotating gear engaged with the rotating gear, the lower end of the driving cavity is rotationally connected with a rotating shaft, the lower end of the rotating shaft is fixedly connected with a winding gear meshed with the driving gear, the upper end of the rotating shaft is provided with a ratchet wheel, the upper end of the left ratchet wheel is provided with a driving pulley shaft, the upper end of the driving pulley shaft is fixedly connected with a driving pulley, the wall of the lower end face of the feeding cavity is rotatably connected with a driven belt wheel in sliding connection with the moving shaft, and a transmission belt for connecting the driven belt wheel and the driving belt wheel is arranged in the machine shell.
3. The bearing outer ring grinding device according to claim 2, wherein: the fixed polishing mechanism comprises a limit groove arranged in the fixed rod, the upper end wall of the inner polishing cavity is rotatably connected with a limit pin with the lower end positioned in the limit groove, a fixed gear cavity is arranged in the driving gear, the fixed gear cavity can pass through the placing disc, the upper end wall of the inner grinding cavity is fixedly connected with a fixed motor, the fixed motor is in power connection with a fixed motor shaft, the lower end of the fixed motor shaft is fixedly connected with a driving gear, a cylindrical cavity is arranged in the movable shaft, the movable shaft is characterized in that two rotating blocks are arranged at the upper end of the movable shaft, a translation block is connected in a translation cavity in a sliding mode, a translation spring connected with the translation block is arranged in the translation cavity, the translation block is far away from a connecting block fixedly connected with one end of the movable shaft and an inner polishing block, and the other end of the translation block is fixedly connected with a connecting rope fixedly connected with a driven belt wheel.
4. The bearing outer ring grinding device according to claim 2, wherein: the grinding mechanism comprises an outer grinding gear cavity arranged in the outer grinding gear, the left end wall of the outer grinding gear cavity is fixedly connected with an electromagnet, a moving block is slidably connected in the outer grinding gear cavity, and the right end of the moving block is located in an inner grinding block in the feeding cavity.
5. The bearing outer ring grinding device according to claim 2, wherein: the fixing rod can fix the bearing, and the ratchet wheel does not work in a reverse rotation mode.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202010153683.XA CN111215975A (en) | 2020-03-06 | 2020-03-06 | Bearing inner race grinding device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202010153683.XA CN111215975A (en) | 2020-03-06 | 2020-03-06 | Bearing inner race grinding device |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN111215975A true CN111215975A (en) | 2020-06-02 |
Family
ID=70832808
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202010153683.XA Withdrawn CN111215975A (en) | 2020-03-06 | 2020-03-06 | Bearing inner race grinding device |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN111215975A (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN115673906A (en) * | 2022-09-09 | 2023-02-03 | 江苏智疆航空科技发展有限公司 | Grinding device is used in ceramic core production |
| CN116038515A (en) * | 2023-02-13 | 2023-05-02 | 浙江迈格发机械有限公司 | Lasso grinding device |
-
2020
- 2020-03-06 CN CN202010153683.XA patent/CN111215975A/en not_active Withdrawn
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN115673906A (en) * | 2022-09-09 | 2023-02-03 | 江苏智疆航空科技发展有限公司 | Grinding device is used in ceramic core production |
| CN115673906B (en) * | 2022-09-09 | 2023-10-20 | 江苏智疆航空科技发展有限公司 | Grinding device is used in ceramic core production |
| CN116038515A (en) * | 2023-02-13 | 2023-05-02 | 浙江迈格发机械有限公司 | Lasso grinding device |
| CN116038515B (en) * | 2023-02-13 | 2023-09-29 | 浙江博雄机械有限公司 | Lasso grinding device |
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Legal Events
| 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 |
Application publication date: 20200602 |
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| WW01 | Invention patent application withdrawn after publication |