CN106217054A - A kind of bearing steel ring automatic moulding machine - Google Patents
A kind of bearing steel ring automatic moulding machine Download PDFInfo
- Publication number
- CN106217054A CN106217054A CN201610796249.7A CN201610796249A CN106217054A CN 106217054 A CN106217054 A CN 106217054A CN 201610796249 A CN201610796249 A CN 201610796249A CN 106217054 A CN106217054 A CN 106217054A
- Authority
- CN
- China
- Prior art keywords
- chamfering
- mould
- circle
- shaping
- chamfer
- 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
- B23—MACHINE TOOLS; METAL-WORKING NOT OTHERWISE PROVIDED FOR
- B23P—METAL-WORKING NOT OTHERWISE PROVIDED FOR; COMBINED OPERATIONS; UNIVERSAL MACHINE TOOLS
- B23P23/00—Machines or arrangements of machines for performing specified combinations of different metal-working operations not covered by a single other subclass
- B23P23/04—Machines or arrangements of machines for performing specified combinations of different metal-working operations not covered by a single other subclass for both machining and other metal-working operations
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B21—MECHANICAL METAL-WORKING WITHOUT ESSENTIALLY REMOVING MATERIAL; PUNCHING METAL
- B21D—WORKING OR PROCESSING OF SHEET METAL OR METAL TUBES, RODS OR PROFILES WITHOUT ESSENTIALLY REMOVING MATERIAL; PUNCHING METAL
- B21D53/00—Making other particular articles
- B21D53/10—Making other particular articles parts of bearings; sleeves; valve seats or the like
- B21D53/12—Making other particular articles parts of bearings; sleeves; valve seats or the like cages for bearings
-
- 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)
- Physics & Mathematics (AREA)
- Optics & Photonics (AREA)
- Rolling Contact Bearings (AREA)
Abstract
The present invention relates to a kind of bearing steel ring automatic moulding machine, including: furling plate round machine structure, reshaping device and chamfering system, furling plate round machine structure includes circle_curling die tool, rolls up circle driving element and the volume circle push pedal being arranged on volume circle driving element, reshaping device includes that shaping mould, pushing ram and shaping drive element, chamfering system includes chamfer mould, mobile driving element and two chamfer mechanisms, and chamfer mechanism includes chamfering frame, the motor being arranged in chamfering frame, the rotating shaft that can be rotatably set in chamfering frame, drives element and be arranged on the chamfering tool of rotating shaft one end.Volume circle, shaping and chamfering three process in one, are carried out volume circle, shaping and chamfering operation, are combined by three process by the present invention successively, upper one procedure is automatically performed next process after completing, automaticity is high, and production efficiency is high, is greatly saved production cost.
Description
Technical field
The present invention relates to technology Production of bearing equipment technical field, particularly bearing steel ring automatic moulding machine.
Background technology
Bearing is the mechanical part that a kind of usage amount is the biggest, and bearing includes two steel rings and the rolling being clipped between steel ring
Pearl, each bearing has two steel rings, so the use of steel ring is bigger.Bearing steel ring manufacture includes volume circle, shaping and chamfering three road
Operation, volume circle is that rectangular steel disc is rolled into annular workpiece, and shaping is more roundly whole for the shape of annular workpiece, and
The connection of two ends is tightr, and chamfering is that the outer wedge angle of the two of annular workpiece ends is cut away.At present, at bearing steel ring
In the manufacturing, this three process is all to separate to carry out on different machines, after completing one procedure on a machine
Taking another machine row again and carry out next process, production efficiency is the lowest, and every machine will several operative,
Taking very much artificial, in today that labor cost is the highest, traditional bearing steel ring production method and equipment make production cost
The highest.
Summary of the invention
It is an object of the invention to, propose one and integrate volume circle, shaping and chamfering three process, the axle that production efficiency is high
Hold steel ring automatic moulding machine.
To achieve these goals, the invention provides a kind of bearing steel ring automatic moulding machine, including:
Furling plate round machine structure, furling plate round machine structure includes circle_curling die tool, rolls up circle driving element and the volume being arranged on volume circle driving element
Circle push pedal, circle_curling die has the guide groove that circular die cavity connects with circular die cavity with the tangential direction from circular die cavity, and volume circle pushes away
Plate is in the outside of guide groove and can be inserted in guide groove, and described volume circle drives element to drive volume circle push pedal to move back along guide groove direction
Dynamic；
Reshaping device, reshaping device includes that shaping mould, pushing ram and shaping drive element, and pushing ram is arranged on shaping and drives
On dynamic element, pushing ram and shaping mould are respectively in the both sides of circle_curling die tool, and pushing ram, shaping mould and circle_curling die tool are coaxial,
Pushing ram can be inserted in the circular die cavity of circle_curling die tool, and axially coming along circular die cavity under shaping drives the drive of element
Return is dynamic；
Chamfering system, chamfering system includes chamfer mould, mobile driving element and two chamfer mechanisms, and chamfer mechanism includes
Chamfering frame, the motor being arranged in chamfering frame, the rotating shaft that can be rotatably set in chamfering frame, driving element and installation
At the chamfering tool of rotating shaft one end, motor rotates for drive shaft, two chamfering tools of two chamfer mechanisms coaxial and
Blade is relative to each other, drives element to be used for driving chamfering support to move back and forth along the axis direction of chamfering tool, chamfer mould
Between two chamfering tools and in shaping mould side, mobile drive element be used for driving chamfer mould with shaping mould
Moving back and forth between coaxial position and the position coaxial with chamfering tool, chamfer mould has energy will be through reshaping device shaping
After annular workpiece clamping clamping through hole.
The bearing steel ring automatic moulding machine that the present invention provides, by volume circle, shaping and chamfering three process in one, shaping is driven
The annular workpiece being rolled into through furling plate round machine structure is advanced shaping grinding tool and chamfer mould by dynamic element successively, carry out successively shaping and
Chamfering operates, and is combined by three process, and upper one procedure is automatically performed next process after completing, and automaticity is high,
Production efficiency is high, is greatly saved production cost.
Accompanying drawing explanation
Fig. 1 is furling plate round machine structure structural representation；
Fig. 2 is that circle_curling die has sectional view；
Fig. 3 is guide plate sectional view；
Fig. 4 is reshaping device structural representation；
Fig. 5 is the part-structure schematic diagram of chamfering system；
Fig. 6 is the structural representation of chamfering system.
Below in conjunction with the accompanying drawings the present invention is described in further detail.
Detailed description of the invention
Bearing steel ring automatic moulding machine includes furling plate round machine structure, reshaping device and chamfering system.See Fig. 1, furling plate round machine structure bag
Include circle_curling die tool 21, guide plate 24, volume circle push pedal 22 and the volume circle being sequentially arranged and drive element 23.Seeing Fig. 2, circle_curling die has
21 have the guide groove 212 that circular die cavity 211 connects with circular die cavity 211 with the tangential direction from circular die cavity 211.Volume circle push pedal
22 in the outside of guide groove 212 and can be inserted in guide groove 212.Volume circle push pedal 22 is arranged on volume circle and drives on element 23, and volume circle drives
Element 23 drives volume circle push pedal 22 to move back and forth along guide groove 212 direction.Guide plate 24 is arranged on circle_curling die tool 21 and volume circle pushes away
Between plate 22, seeing Fig. 3, guide plate 24 has through pilot hole 241, and pilot hole 241 connects with the guide groove 212 of circle_curling die tool 21
Logical, volume circle push pedal 22 may pass through pilot hole 241 and inserts in guide groove 212.Square cross (steel disc) is placed in pilot hole 241, volume
Circle drives element 23 to drive volume circle push pedal 22 to move, and square cross is pushed circular die cavity along pilot hole 241 and guide groove 212
In 211, square cross is made to be rolled into annular workpiece.
Seeing Fig. 4, reshaping device includes that shaping mould 31, pushing ram 32 and shaping drive element 33, and pushing ram 32 is installed
Driving on element 33 in shaping, pushing ram 32 and shaping mould 31 are respectively at the both sides of circle_curling die tool 21, pushing ram 32, sizing die
Tool 31 and circle_curling die have 21 coaxial, and pushing ram 32 can be inserted in the circular die cavity of circle_curling die tool 21, and drives element 33 in shaping
Drive under axially moving back and forth along circular die cavity.Shaping mould 31 has circular die cavity, the internal diameter of die cavity be slightly less than through
Furling plate round machine structure is rolled into the external diameter of annular workpiece.Square cross is after furling plate round machine structure is rolled into annular workpiece, and pushing ram 32 inserts
In circle_curling die tool 21, annular workpiece being pushed shaping mould 31 from circle_curling die tool 21, annular workpiece is by shaping mould
The extruding of 31, the head and the tail two ends of workpiece combine more preferably, and annular workpiece is more round.
Seeing 5 and Fig. 6, chamfering system includes chamfer mould 41, mobile driving element 42 and two chamfer mechanisms, beveler
Structure includes that chamfering frame 51, rotating shaft 52, chamfering tool 53, chamfering drive element 54 and motor 55.Rotating shaft 52 is arranged on beveler
On frame 51, can rotate relative to chamfering frame 51.Motor 55 is arranged in chamfering frame 51, is revolved by V belt translation drive shaft 52
Turn.Chamfering tool 53 is arranged on one end of rotating shaft 52.Chamfering frame 51 is movably disposed on base 1, drives unit in chamfering
Under the driving of part 54, the axis direction respect thereto 1 along chamfering tool 53 moves back and forth.Two chamfer mechanisms do mirror-image arrangement,
Two chamfering tools 53 of two chamfer mechanisms are coaxial and blade is relative to each other.Chamfer mould 41 two chamfering tools 53 it
Between, and in shaping mould 31 side, the axis of chamfer mould 41, the axis of chamfering tool 53 and the axis of shaping mould 31 exist
On same horizontal plane.Chamfer mould 41 is connected with the mobile push rod 421 driving element 42, in the mobile driving driving element 42
Under, chamfer mould 41 can move back and forth between the position coaxial with shaping mould 31 and the position coaxial with chamfering tool 53.
Chamfer mould 41 has clamping through hole 413, when chamfer mould 41 moves to the position (as shown in Figure 1) coaxial with shaping mould 31
Time, 32 annular workpiece after reshaping device shaping of pushing ram push the clamping through hole 413 of chamfer mould 41, and clamping is logical
The annular workpiece clamping after reshaping device shaping of 413, the hole.Then mobile driving element 42 promotes chamfer mould 41 to move
Move the position coaxial with chamfering tool 53, two chamferings of two chamfer mechanisms drive elements 54 all promote chamfering frame 51 to
Chamfer mould 41 direction is moved, until the two ends of annular workpiece are respectively inserted in a chamfering tool 53, motor 55 drives chamfering
Cutter 53 rotates, and the two ends of annular workpiece are carried out chamfering simultaneously.
Seeing Fig. 5, chamfer mechanism also includes that location-plate 43, location-plate 43 are arranged on chamfering tool 53 side.Chamfer mould
41 include that left chamfer mould 411 and right chamfer mould 412, left chamfer mould 411 are connected with the mobile push rod 421 driving element,
Left chamfer mould 411 and right chamfer mould 412 connect, and can move under the mobile driving driving element 42 together.A left side is fallen
Angle mold 411 and right chamfer mould 412 respectively have a semi-circular recesses, and these two semi-circular recesses have collectively constituted chamfering mould
Tool 41 clamping through hole 413.Left chamfer mould 411, under certain External Force Acting, can do relative to right chamfer mould 412 and move on a small quantity.
When left chamfer mould 411 is not by certain External Force Acting, clamping through hole 413 can will be put into annular workpiece therein and hold jail, no
As for dropping out.When chamfer mould 41 moves to the position coaxial with chamfering tool 53, right chamfer mould 412 is by location-plate 43
Stop, left chamfer mould 411 by the mobile pushing driving element 42 to the right chamfer mould 412 do a small amount of mobile, clamp through hole
413 will be put into annular workpiece therein clamps the most firm, firmly unlikely to the annular workpiece when carrying out chamfering operation
In rotating and dropping out.After chamfering has operated, move and drive element 42 with chamfer mould 41 toward rounding die 31
Direction is moved, and chamfer mould 41 is no longer influenced by mobile element 42 and the bidirection press of location-plate 43 of driving, mobile driving element 42
Disappearing the pushing force of left chamfer mould 411, left chamfer mould 411 resets.When chamfer mould 41 moves to and shaping mould 31
During coaxial position, shaping drives element 33 to promote pushing ram 32 to move further along, chamfering in chamfer mould 41
The bearing steel ring finished product completed is released.
In the present embodiment, rolling up circle drives element 23, shaping to drive element 33, mobile driving element 42 and chamfering to drive unit
Part 54 is oil cylinder, and they can also is that such as cylinder, hydraulic cylinder or linear electric motors etc. can realize other drivings of rectilinear movement
Element.
The bearing steel ring automatic moulding machine that the present invention provides, by volume circle, shaping and chamfering three process in one, shaping is driven
The annular workpiece being rolled into through furling plate round machine structure is advanced shaping grinding tool and chamfer mould by dynamic element successively, carry out successively shaping and
Chamfering operates, and is combined by three process, and upper one procedure is automatically performed next process after completing, and automaticity is high,
Production efficiency is high, is greatly saved production cost.
Claims (4)
1. a bearing steel ring automatic moulding machine, it is characterised in that including:
Furling plate round machine structure, furling plate round machine structure includes that circle_curling die has, volume circle drives element and is arranged on the round volume circle driven on element of volume to be pushed away
Plate, circle_curling die has the guide groove that circular die cavity connects with circular die cavity with the tangential direction from circular die cavity, and volume circle push pedal exists
The outside of guide groove also can be inserted in guide groove, and described volume circle drives element to drive volume circle push pedal to move back and forth along guide groove direction；
Reshaping device, reshaping device includes that shaping mould, pushing ram and shaping drive element, and pushing ram is arranged on shaping and drives unit
On part, pushing ram and shaping mould are respectively in the both sides of circle_curling die tool, and pushing ram, shaping mould and circle_curling die tool are coaxial, advance
Bar can be inserted in the circular die cavity of circle_curling die tool, and axially moving back along circular die cavity under shaping drives the drive of element
Dynamic；
Chamfering system, chamfering system includes chamfer mould, mobile driving element and two chamfer mechanisms, and chamfer mechanism includes chamfering
Frame, the motor being arranged in chamfering frame, the rotating shaft that can be rotatably set in chamfering frame, drive element and be arranged on turn
The chamfering tool of axle one end, motor rotates for drive shaft, and two chamfering tools of two chamfer mechanisms are coaxial and blade
Toward each other, driving element for driving chamfering support to move back and forth along the axis direction of chamfering tool, chamfer mould is two
Between individual chamfering tool and in shaping mould side, mobile driving element is used for driving chamfer mould coaxial with shaping mould
Position and the position coaxial with chamfering tool between move back and forth, chamfer mould has can be by after reshaping device shaping
The clamping through hole of annular workpiece clamping.
Bearing steel ring automatic moulding machine the most according to claim 1, it is characterised in that described chamfer mechanism also includes location
Plate, chamfer mould includes that left chamfer mould and right chamfer mould, left chamfer mould drive element to be connected with mobile, work as chamfer mould
When moving to the position coaxial with chamfering tool, right chamfer mould stops to by location-plate, and left chamfer mould is driven unit by mobile
The pushing of part and to the right chamfer mould do a small amount of mobile, when the mobile pushing force driving element disappears, left chamfer mould resets.
Bearing steel ring automatic moulding machine the most according to claim 2, it is characterised in that described furling plate round machine structure also includes guiding
Plate, guide plate is arranged between circle_curling die tool and volume circle push pedal, and has through pilot hole, pilot hole and leading that circle_curling die has
Groove connects, and volume circle push pedal may pass through pilot hole and inserts in guide groove.
Bearing steel ring automatic moulding machine the most according to claim 3, it is characterised in that described volume circle drives element, shaping
Element, mobile driving element and chamfering is driven to drive element to be oil cylinder.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201610796249.7A CN106217054B (en) | 2016-08-31 | 2016-08-31 | Automatic forming machine for bearing steel ring |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201610796249.7A CN106217054B (en) | 2016-08-31 | 2016-08-31 | Automatic forming machine for bearing steel ring |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN106217054A true CN106217054A (en) | 2016-12-14 |
| CN106217054B CN106217054B (en) | 2023-07-07 |
Family
ID=58074185
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201610796249.7A Active CN106217054B (en) | 2016-08-31 | 2016-08-31 | Automatic forming machine for bearing steel ring |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN106217054B (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109500602A (en) * | 2018-10-29 | 2019-03-22 | 浙江飞宇自动化科技有限公司 | A kind of automatic edge rolling chamfer machining equipment for axle sleeve processing |
Citations (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102009375A (en) * | 2010-10-01 | 2011-04-13 | 洛阳高新开发区天惠机械厂 | Automatic chamfering method for inner hole of workpiece and chamfering machine |
| CN201871599U (en) * | 2010-09-07 | 2011-06-22 | 嘉善速腾机械制造有限公司 | Automatic circle-rolling trimmer |
| US20120251258A1 (en) * | 2010-03-15 | 2012-10-04 | Mitsubishi Heavy Industries, Ltd. | Chamfering device and gear processing machine provided therewith |
| CN104324995A (en) * | 2014-11-20 | 2015-02-04 | 河南机电高等专科学校 | Automatic rolling machine |
| CN205056832U (en) * | 2015-10-20 | 2016-03-02 | 南京南汽冲压件有限公司 | Car pipe support multistation upgrades mould |
| CN105750657A (en) * | 2016-05-10 | 2016-07-13 | 夏云美 | Automatic chamfering machine for end parts of round pipe |
| CN206153903U (en) * | 2016-08-31 | 2017-05-10 | 嘉善飞宇滑动轴承有限公司 | Bearing steel ring automatic molding machine |
-
2016
- 2016-08-31 CN CN201610796249.7A patent/CN106217054B/en active Active
Patent Citations (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US20120251258A1 (en) * | 2010-03-15 | 2012-10-04 | Mitsubishi Heavy Industries, Ltd. | Chamfering device and gear processing machine provided therewith |
| CN201871599U (en) * | 2010-09-07 | 2011-06-22 | 嘉善速腾机械制造有限公司 | Automatic circle-rolling trimmer |
| CN102009375A (en) * | 2010-10-01 | 2011-04-13 | 洛阳高新开发区天惠机械厂 | Automatic chamfering method for inner hole of workpiece and chamfering machine |
| CN104324995A (en) * | 2014-11-20 | 2015-02-04 | 河南机电高等专科学校 | Automatic rolling machine |
| CN205056832U (en) * | 2015-10-20 | 2016-03-02 | 南京南汽冲压件有限公司 | Car pipe support multistation upgrades mould |
| CN105750657A (en) * | 2016-05-10 | 2016-07-13 | 夏云美 | Automatic chamfering machine for end parts of round pipe |
| CN206153903U (en) * | 2016-08-31 | 2017-05-10 | 嘉善飞宇滑动轴承有限公司 | Bearing steel ring automatic molding machine |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109500602A (en) * | 2018-10-29 | 2019-03-22 | 浙江飞宇自动化科技有限公司 | A kind of automatic edge rolling chamfer machining equipment for axle sleeve processing |
| CN109500602B (en) * | 2018-10-29 | 2024-01-26 | 浙江飞宇自动化科技有限公司 | Automatic round-rolling chamfering processing equipment for shaft sleeve processing |
Also Published As
| Publication number | Publication date |
|---|---|
| CN106217054B (en) | 2023-07-07 |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN106141690A (en) | bearing steel ring automatic moulding machine | |
| CN104324995A (en) | Automatic rolling machine | |
| CN111917250B (en) | Three-station shaping machine | |
| CN115156948B (en) | Positioning and processing device and method for top pin hole of die | |
| CN110666060A (en) | Stamping equipment for producing battery steel shell | |
| CN112701859A (en) | Motor stator trimmer | |
| CN104043971B (en) | A kind of spinning machine with cutting and material unloading function | |
| CN109051237B (en) | Needle pressing machine | |
| CN106217054A (en) | A kind of bearing steel ring automatic moulding machine | |
| CN104307954B (en) | A kind of spinning machine that can excise burr suitable in large-scale sheave | |
| CN206153903U (en) | Bearing steel ring automatic molding machine | |
| CN206153902U (en) | Bearing steel ring automatic molding machine | |
| CN210997706U (en) | Rotary cutter feeding device with tool magazine | |
| CN203141095U (en) | Spinning device with cutting function and unloading function | |
| CN216369702U (en) | Motor stator core assembly line that takes shape | |
| CN203471323U (en) | Multifunctional pipe end forming machine | |
| CN109676068B (en) | Roll forging equipment for V L type ball cage inner side parting structure product and forming method thereof | |
| CN114536022A (en) | Rotor shaft machining and motor rotor press-fitting integrated machine tool | |
| CN103072199A (en) | Dual-cylinder full-automatic pneumatic blank cutting machine | |
| CN202114171U (en) | Nuclear power rotor coil copper bar numerical control punching and traction feeding device | |
| CN107962143B (en) | Pin shaft heading machine | |
| CN211569328U (en) | A loading attachment for deciding rotor plastic frock | |
| CN116511575A (en) | Water meter shell hole milling device and method | |
| CN211209533U (en) | Novel automatic plastic frock of stator and rotor | |
| CN110202197B (en) | Six-station shoe tree integral finishing equipment and working method thereof |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C06 | Publication | ||
| PB01 | Publication | ||
| CB02 | Change of applicant information | ||
| CB02 | Change of applicant information |
Address after: No. 9 -2, Changsheng Road, Wei Tang street, Jiashan County, Jiaxing City, Zhejiang Province, -2 Applicant after: ZHEJIANG FEIYU AUTOMATION TECHNOLOGY Co.,Ltd. Address before: No. 9, Changsheng Road, Wei Tang Industrial District, Jiashan County, Jiaxing, Zhejiang Applicant before: JIASHAN FEIYU BEARING Co.,Ltd. |
|
| SE01 | Entry into force of request for substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| CB02 | Change of applicant information | ||
| CB02 | Change of applicant information |
Address after: No.9-2, Changsheng Road, Weitang street, Jiashan County, Jiaxing City, Zhejiang Province Applicant after: Zhejiang Feiyu Automation Technology Co.,Ltd. Address before: No.9-2, Changsheng Road, Weitang street, Jiashan County, Jiaxing City, Zhejiang Province Applicant before: ZHEJIANG FEIYU AUTOMATION TECHNOLOGY Co.,Ltd. |
|
| GR01 | Patent grant | ||
| GR01 | Patent grant |