CN205834948U - The vertical double-sided grinding machine of slice work-piece in high precision - Google Patents
The vertical double-sided grinding machine of slice work-piece in high precision Download PDFInfo
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- CN205834948U CN205834948U CN201620753368.XU CN201620753368U CN205834948U CN 205834948 U CN205834948 U CN 205834948U CN 201620753368 U CN201620753368 U CN 201620753368U CN 205834948 U CN205834948 U CN 205834948U
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Abstract
nullThe utility model discloses a kind of high accuracy vertical double-sided grinding machine of slice work-piece，Can be used for giving the Double End of slice work-piece disposable rapid stock-removal molding，Its structure includes fuselage、Feeding table、Feeding guide、Pay-off and a secondary emery wheel，Mainly the upper emery wheel of vertical installation and lower grinding wheel is used to constitute on participate in slice work-piece grinding one secondary emery wheel，On this、Lower grinding wheel mutually rotates and forms the horizontal grinding of Double End of slice work-piece，Therefore can be on pay-off, slice work-piece is delivered to by feeding guide successively during work、Between lower grinding wheel，Thus complete the continuous gapless automatic grinding of slice work-piece，And after slice work-piece machines，The material-dropping hole automatic blanking can preset in the middle part of lower grinding wheel again，Whole grinding process is all automatically controlled by intellectualized operation case，Therefore, it is possible to the perfect grinding realizing high accuracy slice work-piece，And have reliable、Work efficiency is high、Alleviate labor strength、Operation safety、The advantages such as reliable in quality.
Description
Technical field
This utility model relates to a kind of vertical double-sided grinding machine for workpiece Double face grinding, specifically refers to high accuracy thin slice
The vertical double face abrading machine of workpiece.
Background technology
The slice work-piece that super-thin metal material makes is primarily referred to as the gauge workpiece product at below 1mm, this
The slice work-piece that slice work-piece, the two ends depth of parallelism manufactured especially with NdFeB material and roughness requirements are higher, if
Use conventional lapping mode, then have that grinding efficiency is low, labor intensity greatly, the defect such as the safest, quality cannot ensure, and
By traditional surface grinding machine can only the certain thickness workpiece of grinding, slice work-piece is just difficult to grinding；Therefore, at present
There is bigger technical need in factory for the grinding of slice work-piece always.Meanwhile, it is applied to height along with neodymium iron boron thin slice
Hold the increasing number on scientific equipment, and the processing to neodymium iron boron proposes higher technology requirement, the most just compels to be essential
Want more structurally sound high accuracy slice work-piece equipment for grinding, to ensure its quality and production efficiency.
Summary of the invention
Technical problem to be solved in the utility model is to overcome the defect of prior art and to provide one to realize thin
The vertical double-sided grinding machine of high accuracy slice work-piece of sheet workpiece continuous gapless automatic grinding, it has reliable, work efficiency
High, alleviate labor strength, operation safety, the advantage of reliable in quality.
Technical problem of the present utility model is achieved through the following technical solutions:
A kind of high accuracy vertical double-sided grinding machine of slice work-piece, including the feeding table on fuselage, fuselage, the feeding on feeding table
Guide rail and pay-off and a secondary emery wheel of feeding guide outfan, described pay-off coordinates feeding guide by described thin
Sheet workpiece is delivered in a secondary emery wheel successively, and the secondary emery wheel of described one is the upper emery wheel by vertical installation and lower grinding wheel is constituted, should
Upper and lower emery wheel mutually rotates the horizontal grinding of formation, is provided with upper and lower through material-dropping hole in the middle part of lower grinding wheel.
Described upper emery wheel has the upper rotating shaft upwardly extending and vertically rotating installation, is provided with in the side of upper rotating shaft and powers on
Machine, this is provided with V belt translation between motor with upper rotating shaft and is connected.
Described upper rotating shaft is vertically rotatably installed on planker, is provided with the described planker of driving in planker side and makees lifting moving
Ball-screw, the top of this ball-screw be provided with drive ball screw turns servomotor or operation handwheel.
Described upper rotating shaft is hollow rotating shaft, and described fuselage side is provided with water tank, and this water tank is installed water pump and driving
The pump motor of pump working, described hollow rotating shaft lower end is communicated to the grinding face of emery wheel, the upper end of hollow rotating shaft and institute
State and between water pump, be provided with the tube for transfusion interconnected.
Described fuselage is provided with vertical square chest, described servomotor and operation handwheel and is arranged on vertical type square box top,
Described upper motor is arranged on vertical square chest, and described planker lifting moving is arranged on vertical square chest.
Described planker is respectively provided on two sides with balance weight.
Described lower grinding wheel has the lower rotary shaft downwardly extending and vertically rotating installation, is provided with lower electricity in the side of lower rotary shaft
Machine, is provided with V belt translation between this lower motor and lower rotary shaft and is connected.
Described lower rotary shaft is hollow rotating shaft, installs tremie pipe in hollow rotating shaft, and this tremie pipe upper end is provided with and is undertaken on
Static vertical hopper below the material-dropping hole of lower grinding wheel, tremie pipe be arranged right below receiver.
Described fuselage is provided with outage, and described water tank is provided with magnetic mud seperator, described outage and magnetic mud
The liquid back pipe interconnected it is provided with between seperator；The intellectualized operation case of band display screen and automatically controlled it is additionally provided with on described fuselage
Case.
Being provided with left and right guide plate between described upper emery wheel and lower grinding wheel, described slice work-piece passes through left and right guide plate
Sequentially enter grinding between upper and lower emery wheel.
Compared with prior art, participate in slice work-piece grinding one secondary emery wheel is mainly used vertical peace by this utility model
The upper emery wheel of dress and lower grinding wheel are constituted, and this upper and lower emery wheel mutually rotates and forms the horizontal grinding of Double End of slice work-piece, therefore work
Slice work-piece can be delivered between upper and lower emery wheel feeding guide successively with pay-off when making, thus complete thin slice work
The continuous gapless automatic grinding of part, and after slice work-piece machines, the material-dropping hole can preset in the middle part of lower grinding wheel again is automatic
Blanking, whole grinding process is all automatically controlled by intellectualized operation case, realizes high accuracy thin slice therefore, it is possible to perfect
The grinding of workpiece, and have reliable, work efficiency is high, alleviate labor strength, operation safety, reliable in quality etc.
Advantage.
Accompanying drawing explanation
Fig. 1 is structural representation of the present utility model (main regarding state).
Fig. 2 is the sectional structure schematic diagram (main regarding state) of Fig. 1.
Fig. 3 is the top view of Fig. 1.
Detailed description of the invention
By above-mentioned accompanying drawing, this utility model embodiment will be elaborated again below.
As shown in Fig. 1 ~ Fig. 3,1. a spike, 2. fuselage, 3. bearing block, 4. lower grinding wheel, 5. go up emery wheel, the most vertical square chest,
7. planker, 8. tube for transfusion, 9. servomotor, 10. high-speed sealing joint, 11. operation handwheels, 12. pay-offs, 13. display screens,
14. intellectualized operation casees, 15. vibrating disks, 16. feeding guides, 17. feeding tables, 18. electric cabinets, 19. receivers, 20. blankings
Pipe, 21. lower rotary shafts, 22. angular contact ball bearings, 23. static vertical hoppers, 24. material-dropping holes, rotating shaft on 25., 26. speed governing rotate
Joint, 27. V belt translation attachment structures, 28. ball-screws, motor on 29., 30. outages, 31. liquid back pipes, 32. pump motors,
33. magnetic mud seperators, 34. water pumps, 35. water tanks, 36. times motors, 37. slice work-pieces, 38. balance weights.
The vertical double-sided grinding machine of slice work-piece in high precision, it is disposable quick for the Double End of slice work-piece 37 being given
The equipment for grinding of grinding-shaping, whole grinding machine all uses intelligent automatic control to operate, and can be according to actual grinding needs
The machined parameters of regulation grinding machine, such as grinding rotating speed, feeding speed and automatically compensation stock removal etc.；Wherein, slice work-piece 37 is main
If referring to that gauge at below 1mm, and mainly uses the thin rounded flakes workpiece or square sheet workpiece that NdFeB material manufactures.
Described vertical double-sided grinding machine includes cabinet shape fuselage 2, and by spike 1 scalable, it installs flat this body bottom surface
Row degree, according to order from right to left shown in Fig. 1, Fig. 2 on fuselage 2, the namely slice work-piece 37 processing on grinding machine runs
Sequentially carry out the installation of all parts, mainly include being arranged on the intellectualized operation case 14 of fuselage 2 rightmost side, electric cabinet 18 and
Vibrating disk 15, is arranged on the feeding table 17 in the middle part of fuselage 2, the feeding guide 16 on feeding table and pay-off 12, and is arranged on
The grinding parts of fuselage 2 leftmost side.
Wherein, intellectualized operation case 14 can conveniently be observed with display screen 13 and directly operates, it combine electric cabinet 18 and
Realize the intelligent automatic control operation of whole grinding machine；Described display screen 13 viewing area is 154.1 × 85.9mm, uses
LED-backlit regulates, and selects 3V/225mAh lithium battery power supply；Described vibrating disk 15 is arranged on the input of feeding guide 16, it
Be that slice work-piece 37 is processed initial deposits a little, pours a collection of a fairly large number of slice work-piece 37 into vibrating disk 15 simultaneously
In, each slice work-piece just can be given under the effect of vibration of vibrating disk auto arrangement, then sequentially enter in feeding guide 16,
Therefore feeding is convenient the most smooth and easy, and frequency of vibration can be the most adjustable.
Described feeding guide 16 is arranged on feeding table 17, installs the height adjustments such as two inclined-planes in feeding guide 16 bottom
Block, the setting height(from bottom) of scalable feeding guide 16 and levelness, the most reliable and the most stable, the most easy to adjust；This feeding guide 16 uses
High rigidity G60 material makes, conditioned process, and after quenching, hardness reaches HRC60-60 °, and through 100,000 frictions of life test,
Measure way rub face and be showed no abrasion；Described feeding guide is provided with the adjustment side of two settings equidirectional with feeding guide
Face guide rail, can be adjusted according to the size of slice work-piece 37；And it is provided with binder plate near outfan on feeding guide 16, main
It is used for preventing the slice work-piece in course of conveying from jumping out, and it is operating stuck existing in conveying to efficiently solve slice work-piece
As.
Described pay-off 12 is arranged on above feeding guide 16, and it has one and is driven rotation by two synchronous pulleys
Timing Belt, this Timing Belt is attached on feeding guide 16, just can be by slice work-piece 37 successively along feeding in its rotation process
Guide rail 16 drives and straight line is delivered to grinding parts；Timing Belt drives slice work-piece 37 rectilinear movement not have sliding, and thin
Sheet workpiece can move as uniform rectilinear again under the drive of Timing Belt, operates steadily, in order；Meanwhile, the uniform rotation of Timing Belt
Can run under reducing gear control, and stepper motor driver can be passed through according to the size and shape requirement of slice work-piece 37
The rotating speed of tuning Timing Belt controls the translational velocity of slice work-piece, i.e. reach feeding speed at the uniform velocity, adjustable purpose, with
The speed of step band be 1 ~ 3 m/min adjustable, problem that is that there is not transporting velocity speed, thus more preferably complete the precision of slice work-piece
Processing, improves the machining accuracy of slice work-piece 37, keeps the roughness of slice work-piece, the depth of parallelism consistent.
Described grinding parts include the secondary emery wheel being arranged on feeding guide 16 outfan, and it have employed diamond
Emery wheel, its abrasive material particle mean size 240um, it is more suitable for magnetic material processing；Described one secondary emery wheel is upper by vertical installation
Emery wheel 5 and lower grinding wheel 4 are constituted, and upper and lower emery wheel mutually rotates the horizontal grinding of formation, therefore when pay-off 12 coordinates feeding guide 16
Be delivered to successively between upper and lower emery wheel by slice work-piece 37, then the both ends of the surface of slice work-piece 37 just can once complete grinding；With
Time, it is provided with the left and right guide plate that stainless steel material makes between upper and lower emery wheel, and slice work-piece can be depended on by left and right guide plate
Grinding between the upper and lower emery wheel of secondary entrance, the slice work-piece 37 that grinding completes also can be sequentially output.
Described upper emery wheel 5 has upwardly extending upper rotating shaft 25, and on this, rotating shaft is by high accuracy angular contact ball bearing 22
Vertically being rotatably installed on planker 7, upper rotating shaft 25 play after assembling is in 0.002mm, it is ensured that the kinematic accuracy of upper emery wheel 5,
And reached grinding machine design requirement.
Described upper rotating shaft 25 is hollow rotating shaft, and this hollow rotating shaft lower end is communicated to the grinding face of emery wheel 5, hollow rotating shaft
Upper end connected by speed governing swivel joint 26 and have a tube for transfusion 8, and use high-speed sealing joint 10 in the junction of tube for transfusion, with
Junction is avoided to leak；Described fuselage 2 bottom side water tank 35, this water tank is installed water pump 34 and drives pump working and take out
The pump motor 32 of coolant in water tank 35, and tube for transfusion 8 is connected on water pump 34, therefore when slice work-piece 37 enters upper and lower
Between emery wheel during grinding, the coolant in water tank 35 extracts through water pump 34, then by tube for transfusion 8 under pump motor 32 works
Rotating shaft 25 in entrance, until being ejected on slice work-piece 37 from the grinding face of upper emery wheel 5, thus the grinding realizing slice work-piece is cold
But working, and tune the valve on tube for transfusion 8 and can also control liquid outlet quantity size, general fluid pressure is between 0.05 ~ 0.2Mpa.
It addition, the coolant after Shi Yonging can be put aside in the groove of fuselage 2 end face, outage 30, water tank are set in groove
35 are provided with magnetic mud seperator 33, will be carried out even by the liquid back pipe 31 interconnected between outage 30 and magnetic mud seperator 33
Connect, then the coolant after using just can pass through outage 30, liquid back pipe 31 enters magnetic mud seperator 33 and be recycled to water tank 35 with
Wait to reuse.
Described magnetic mud seperator 33 is mainly for separating of reclaiming the workpiece grinding powder mixed in coolant, when mixing work
The recovery coolant of part grinding powder enters magnetic mud seperator 33 together, and the roller that two magnetic mud seperators carry just can be at motor
Reductor at the uniform velocity rotates under driving, and rotational moulding uses quality of rubber materials and magnetic material, then mixed liquor is through roller, workpiece grinding powder
End just can be removed by magnetic rollers absorption, and recovery coolant now totally cleans, and just can reuse.
Described planker 7 lifting moving is arranged on vertical square chest 6, and this vertical square chest is fixedly mounted on fuselage 2, upper
The vertical square chest 6 of rotating shaft 25 side is provided with hard-wired upper motor 29, this is provided with between motor and upper rotating shaft 25 band and passes
It is dynamically connected 27, therefore upper motor 29 can drive rotating shaft 25 to rotate, and then drive upper emery wheel 5 to be rotated into grinding work.
Described planker 7 weight is big, in order to prevent single sided taper, need to be balanced at planker both sides coupling balance weight 38.
Described planker 7 side is provided with and is arranged on vertical square chest 6, and drives planker 7 to make the ball-screw of lifting moving
28, ball-screw is the lifting moving converting rotational motion to drive planker 7, therefore is provided with driving rolling on ball-screw 28 top
The servomotor 9 of ballscrew rotation or operation handwheel 11；Wherein, servomotor 9 is fixedly mounted on vertical square chest 6 top, is to make
For motorized motions, it is ensured that micro cutting slice work-piece plane, to reach the technology requirement of slice work-piece；Operation handwheel 11 is also fixed
It is arranged on vertical square chest 6 top, is as side manual actuation, planker 7 can be driven to lift 45 ° of Helical gear Transmissions by two
Mobile.
The feed screw nut gap that described ball-screw 28 coordinates with it ensures in 0.002mm, to ensure upper emery wheel 5
Lifting rectilinear movement precision；Described ball-screw 28 can also drive the automatic slow-motion of emery wheel 5 to grind under the driving of servomotor 9
Cutting slice work-piece, when upper emery wheel 5 weares and teares, servomotor 9 controls to compensate the wear extent of upper emery wheel 5 by display screen 13, from
And remain equilibrium stock removal.
Described lower grinding wheel 4 has the lower rotary shaft 21 downwardly extended, and this lower rotary shaft is by high accuracy angular contact ball bearing 22
Vertically being rotatably installed in bearing block 3, bearing block is fixedly mounted in fuselage 2, and lower rotary shaft 21 play after assembling is at 0.002mm
In, it is ensured that the kinematic accuracy of lower grinding wheel 4, and reached grinding machine design requirement.
Described lower rotary shaft 21 side is provided with the lower motor 36 being fixedly mounted in fuselage 2, this lower motor and lower rotary shaft it
Between be provided with V belt translation and connect 27, therefore lower motor 36 can drive lower rotary shaft 21 to rotate, and then drives lower grinding wheel 4 to be rotated into grinding work
Make；The direction of rotation of lower rotary shaft 21 and rotary speed can pass through Frequency Converter Control, mainly facilitate grinding square sheet workpiece.
Described lower rotary shaft 21 is hollow rotating shaft, installs tremie pipe 20 in hollow rotating shaft, and this tremie pipe upper end is provided with holds
Be connected on the static vertical hopper 23 below the material-dropping hole 24 of lower grinding wheel 4, tremie pipe 20 be arranged right below receiver 19；Therefore,
When slice work-piece 37 enters after upper and lower wheel grinding completes, and the material-dropping hole 24 that just can pass through lower grinding wheel 4 center fall into static vertical
Hopper 23, then fall into receiver 19 through tremie pipe 20 and collect, blanking automatically, quick.
The associated technical parameters of the vertical double-sided grinding machine of slice work-piece is as shown in the table in high precision:
Mechanical technique parameter
Assembling bistrique precision, bistrique, carborundum wheel, guide precision parameter
| Grinding spindle circular runout | 0.005mm |
| Grinding spindle axial float | 0.0025mm |
| The carborundum wheel depth of parallelism | 0.005mm/φ220mm |
| Guide rail linearity | 0.01mm/1000mm |
Processing conditions
The slice work-piece used in this utility model is not limited to terres rares sintered alloy, and general metal material can become
For the universal object of high-precision grinding, spirit and scope of the present utility model are all defined by the claims.
Claims (10)
1. the high accuracy vertical double-sided grinding machine of slice work-piece, including on the feeding table (17) on fuselage (2), fuselage, feeding table
Feeding guide (16) and a secondary emery wheel of pay-off (12) and feeding guide outfan, described pay-off (12) is joined
Close feeding guide (16) to be delivered to successively by described slice work-piece (37) in a secondary emery wheel, it is characterised in that the secondary emery wheel of described one
Being the upper emery wheel (5) by vertical installation and lower grinding wheel (4) is constituted, this upper and lower emery wheel mutually rotates the horizontal grinding of formation, at lower sand
Wheel (4) middle part is provided with upper and lower through material-dropping hole (24).
The vertical double-sided grinding machine of high accuracy slice work-piece the most according to claim 1, it is characterised in that described upper emery wheel (5)
There is the upper rotating shaft (25) upwardly extending and vertically rotating installation, be provided with motor (29), motor on this in the side of upper rotating shaft
It is connected (27) with being provided with V belt translation between upper rotating shaft.
The vertical double-sided grinding machine of high accuracy slice work-piece the most according to claim 2, it is characterised in that described upper rotating shaft
(25) vertically it is rotatably installed on planker (7), is provided with the ball-screw driving described planker (7) to make lifting moving in planker side
(28), the top of this ball-screw is provided with servomotor (9) or operation handwheel (11) driving ball screw turns.
The vertical double-sided grinding machine of high accuracy slice work-piece the most according to claim 2, it is characterised in that described upper rotating shaft
(25) being hollow rotating shaft, described fuselage (2) side is provided with water tank (35), this water tank is installed water pump (34) and drives plugman
The pump motor (32) made, described hollow rotating shaft lower end is communicated to the grinding face of emery wheel (5), the upper end of hollow rotating shaft and institute
State and between water pump (34), be provided with the tube for transfusion (8) interconnected.
The vertical double-sided grinding machine of high accuracy slice work-piece the most according to claim 3, it is characterised in that on described fuselage (2)
Being provided with vertical square chest (6), described servomotor (9) and operation handwheel (11) and be arranged on vertical square chest (6) top, described is upper
Motor (29) is arranged on vertical square chest (6), and described planker (7) lifting moving is arranged on vertical square chest (6).
The vertical double-sided grinding machine of high accuracy slice work-piece the most according to claim 3, it is characterised in that described planker (7) two
Side is respectively equipped with balance weight (38).
The vertical double-sided grinding machine of high accuracy slice work-piece the most according to claim 1, it is characterised in that described lower grinding wheel (4)
There is the lower rotary shaft (21) downwardly extending and vertically rotating installation, be provided with lower motor (36) in the side of lower rotary shaft, this lower motor
It is connected (27) with being provided with V belt translation between lower rotary shaft.
The vertical double-sided grinding machine of high accuracy slice work-piece the most according to claim 7, it is characterised in that described lower rotary shaft
(21) being hollow rotating shaft, install tremie pipe (20) in hollow rotating shaft, this tremie pipe upper end is provided with and is undertaken on falling of lower grinding wheel (4)
Material hole (24) lower section static vertical hopper (23), tremie pipe be arranged right below receiver (19).
The vertical double-sided grinding machine of high accuracy slice work-piece the most according to claim 4, it is characterised in that on described fuselage (2)
Being provided with outage (30), described water tank (35) is provided with magnetic mud seperator (33), and described outage (30) separates with magnetic mud
The liquid back pipe (31) interconnected it is provided with between machine (33)；The intellectuality of band display screen (13) it is additionally provided with on described fuselage (2)
Control box (14) and electric cabinet (18).
The vertical double-sided grinding machine of high accuracy slice work-piece the most according to claim 1, it is characterised in that described upper emery wheel
(5) and being provided with left and right guide plate between lower grinding wheel (4), described slice work-piece (37) is sequentially entered by left and right guide plate
Grinding between upper and lower emery wheel.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201620753368.XU CN205834948U (en) | 2016-07-18 | 2016-07-18 | The vertical double-sided grinding machine of slice work-piece in high precision |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201620753368.XU CN205834948U (en) | 2016-07-18 | 2016-07-18 | The vertical double-sided grinding machine of slice work-piece in high precision |
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| Publication Number | Publication Date |
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| CN205834948U true CN205834948U (en) | 2016-12-28 |
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ID=57619153
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| Application Number | Title | Priority Date | Filing Date |
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| CN201620753368.XU Active CN205834948U (en) | 2016-07-18 | 2016-07-18 | The vertical double-sided grinding machine of slice work-piece in high precision |
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Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106002515A (en) * | 2016-07-18 | 2016-10-12 | 宁波市鄞州茂鑫机械有限公司 | High-precision sheet workpiece vertical double-surface grinding machine |
| CN109129183A (en) * | 2018-09-19 | 2019-01-04 | 林淑琴 | A kind of hexagonal steel column sanding and polishing equipment |
| CN113547398A (en) * | 2021-07-02 | 2021-10-26 | 广东省粤钢新材料科技有限公司 | Intelligent detection equipment for annealing state of stainless steel material annealing furnace |
| CN115179129A (en) * | 2022-07-01 | 2022-10-14 | 杭州宽泓机械有限公司 | Double-end-surface disc type vertical shaft numerical control grinding machine |
-
2016
- 2016-07-18 CN CN201620753368.XU patent/CN205834948U/en active Active
Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106002515A (en) * | 2016-07-18 | 2016-10-12 | 宁波市鄞州茂鑫机械有限公司 | High-precision sheet workpiece vertical double-surface grinding machine |
| CN109129183A (en) * | 2018-09-19 | 2019-01-04 | 林淑琴 | A kind of hexagonal steel column sanding and polishing equipment |
| CN113547398A (en) * | 2021-07-02 | 2021-10-26 | 广东省粤钢新材料科技有限公司 | Intelligent detection equipment for annealing state of stainless steel material annealing furnace |
| CN113547398B (en) * | 2021-07-02 | 2022-08-16 | 广东省粤钢新材料科技有限公司 | Intelligent detection equipment for annealing state of stainless steel material annealing furnace |
| CN115179129A (en) * | 2022-07-01 | 2022-10-14 | 杭州宽泓机械有限公司 | Double-end-surface disc type vertical shaft numerical control grinding machine |
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| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CP03 | Change of name, title or address |
Address after: No. 168-2, Xinzhuang Road, Gaoqiao Town, Haishu District, Ningbo City, Zhejiang Province Patentee after: Ningbo Haishu Maoxin Machinery Co., Ltd Address before: 315175 No. 168-2 Xinzhuang Road, Gaoqiao Town, Ningbo, Zhejiang, Yinzhou District Patentee before: NINGBO YINZHOU MAOXIN MACHINERY Co.,Ltd. |
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| CP03 | Change of name, title or address |