CN202894991U - Computerized numerical control (CNC) roll grinding machine supporting tile hydrostatic lubrication device - Google Patents
Computerized numerical control (CNC) roll grinding machine supporting tile hydrostatic lubrication device Download PDFInfo
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- CN202894991U CN202894991U CN 201220625371 CN201220625371U CN202894991U CN 202894991 U CN202894991 U CN 202894991U CN 201220625371 CN201220625371 CN 201220625371 CN 201220625371 U CN201220625371 U CN 201220625371U CN 202894991 U CN202894991 U CN 202894991U
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Abstract
The utility model relates to a computerized numerical control (CNC) roll grinding machine supporting tile hydrostatic lubrication device which comprises a side supporting tile and a lower supporting tile. Each supporting tile at least comprises one supporting tile piece and one hydrostatic oil area. A plurality of hydrostatic oil grooves which are surrounded in a circle are arranged on each hydrostatic oil area side by side. At least one oil outlet hole is formed in each hydrostatic oil groove. Each hydrostatic oil area is connected with a respective branch pressure meter, a branch pressure sensor and a branch throttle valve to form a respective oil supply unit of each hydrostatic oil area. According to the CNC roll grinding machine supporting tile hydrostatic lubrication device, the independent oil supply unit is arranged on each hydrostatic oil area on each supporting tile, and the oil supply unit can be used for respectively adjusting oil membrane pressure of each supporting tile piece. Through each branch pressure sensor of each independent oil supply unit, a fault point can be rapidly confirmed, and the accidents caused by dry friction between the supporting tiles and roller necks due to loss of pressure can be avoided. Cleaning units can enable recycled lubricating oil to be clean and durable, and ensures quality of oil products in a hydraulic pipeline, so the CNC roll grinding machine supporting tile hydrostatic lubrication device saves energy resources, and ensures quality of roller grinding.
Description
Technical field
The utility model relates to a kind of CNC roll grinder holder watt hydrostatic lubrication device, is a kind of hydraulic transmission with lubricating property, is a kind of workpiece support device of CNC roll grinder.
Background technology
Heavy for a number ton, even the roll of tens of tons of weights, the problem that its machining at first faces be how will be overweight like this workpiece safely, be installed on rotation stable on the lathe, the jig that is installed must be able to hold out against the cutting force of processing, and can guarantee the precision that machining will reach.For grinding, must also provide larger grinding speed, require to have between workpiece and the jig rational holder mill, lubricated fully for this reason, avoid a large amount of heat of the too high generation of speed, burn workpiece and jig.Because workpiece is overweight, the mode that roll dressing does not adopt general axial workpiece grinding end surface center commonly used to be installed, but adopt the radial support of the roll neck holder watt mode that is installed, utilize Area of bearing larger between roll neck and the Tuo Wa to support the weight of roll.Although the contact area between larger holder watt and the roll neck has solved the problem of supported weight, but produced immediately the friction problem that mutually moves and cause between the two, at this, how suitably lubricatedly seem very outstanding, particularly under high speed, high-precision grinding operating mode, should effectively support really difficulty of again sufficient lubrication.Two kinds of at present holder watt lubricated general employing grease lubrication and thin oil lubricants.And grease lubrication only could be used in the lower situation of grinding speed, needs to use thin oil lubricant in the situation of high-speed grinding.Use thin oil lubricant that dual mode is also arranged: a kind of is simple lubricating, and another kind is with supporting the lubricated of character.The former is simple to the continuous charging-up lubricant oil of rubbing surface, wants to make to produce very thin oil film between Tuo Wa and the roll neck, reduces friction.Because be simple lubricated, the pressure of lubricating oil is very little, so lubricated can not satisfying the demand fully.Latter is to adopt the principle be similar to hydrostatic bearing, has the lubricating oil of certain pressure from holder watt filling, utilizes the pressure of lubricating oil, forms the elasticity oil film roll neck is held up, and owing to roll neck is actual when rotating is and the lubricating oil friction, so frictional force is minimum.The formed device of this lubricating system is called static-pressure bracket watt.Static-pressure bracket watt has well solved the contradiction of effective support and friction.
Existing static-pressure bracket watt also is in foolproof original state, morely adopts and lubricates merely identical oil supply system, only controllable pressure.Such device has the oil film between many problems: Tuo Wa and the roll neck stable not, fluid is difficult to reach distributed uniform, stable at the whole loading end of Tuo Wa, is difficult to form uniformly and effectively hydrostatic support, causes insufficient lubrication, even unlubricated friction, so that roll can't normally rotate.And, without any warning, can not in time find when Oil Film Supporting is undesired, so that holder watt burns out, perhaps since the excessive shift fork torsional deformation that has caused transmission power of frictional force just pinpoint the problems.In addition, need more lubricating oil owing to form the static pressure support, lubricating oil must recycle, otherwise lubrication oil consumption is too much, increases cost.Yet during grinding roller, cooling water can be sprayed onto in the holder watt, and cooling water mixes with lubricating oil, causes lubricant pollution and causes oily emulsification.If pollute for this round and deteriorated lubricating oil continue to enter lubricating oil pipeline can block conduit and valve, reduce lubricity, the friction between Tuo Wa and the roller footpath is increased, Tuo Wa is easy to grind damage, existing static-pressure bracket watt needs are often scraped watt and are changed oil.
Summary of the invention
In order to overcome the problem of prior art, the utility model proposes a kind of CNC roll grinder holder watt hydrostatic lubrication device.Described device has improved the lubrication oil supply mode, lubricating oil is more evenly distributed in holder watt form Oil Film Supporting, increased simultaneously pressure-detecting device, monitor the oil pressure in each holder watt, also increased the circulation cleaning unit, the lubricating oil that recycles is kept clean.
The purpose of this utility model is achieved in that a kind of CNC roll grinder holder watt hydrostatic lubrication device, comprise: be installed in respectively the side holder watt on the tail-bracket of the front rack of headstock side and tailstock side, lower support tile, it is characterized in that, each holder watt comprises the quiet laminated oil zone of a slice at least, be provided with side by side the static pressure oil groove that multiple tracks forms a circle on each quiet laminated oil zone, be equipped with at least one oil outlet on the per pass static pressure oil groove, each quiet laminated oil zone connects branch's Pressure gauge separately, branch's pressure sensor and branch's choke valve, form each quiet laminated oil zone oil supply unit separately, described each oil supply unit is connected with presser unit by oil feed line, and described presser unit is connected with fuel reserve tank; Be respectively equipped with oil-recovery tank on described front rack and the after-frame, described oil-recovery tank by return line be connected the circulation cleaning unit with water separation tank with return filter and be connected, described circulation cleaning unit is connected with fuel reserve tank.
Further, the Lubricating Oil film pressure that provides of described oil supply unit is 1.5MPa～10MPa.
Further, described branch pressure sensor is pressure switch.
Further, described holder watt by the loading end of described static pressure oil groove corral a little less than around loading end.
Further, described holder watt be provided with two quiet laminated oil zones, be provided with side by side the static pressure oil groove that twice surround a rectangular loop in each quiet laminated oil zone, the bottom of each road static pressure oil groove is respectively equipped with an oil outlet.
Further, described presser unit comprises: the total pressure sensor that is connected with described oil feed line, gross pressure table, overflow valve and pressure filter, and described pressure filter is connected with electric lubricating oil pump, and described electronic lubricating pump is connected with fuel reserve tank.
Further, described total pressure sensor is pressure switch.
Further, described oil feed line is divided into headstock side oil feed line and tailstock side oil feed line two-way, described headstock side oil feed line and the tailstock side oil feed line two-way two-position three-way valve of connecting respectively, the normally closed path of described two-position three-way valve connects oil supply unit and presser unit, and the road of often opening of described two-position three-way valve connects presser unit and fuel reserve tank.
Further, described cleaning unit comprises: the water separation tank that is connected with oil return pipe, described water separation tank is provided with liquid level gauge and position-limiting control switch, the bottom of described water separation tank is provided with delivery port, described water-oil separating upper box part is provided with oil-out, described oil-out connects return filter, and described return filter is connected with fuel reserve tank.
The beneficial effect that the utility model produces is: the utility model is set up independently oil supply unit to the quiet laminated oil zone in each holder watt, can divide other to adjust the oil film pressure of each holder tile, utilize the fast localization of faults of branch's pressure sensor in each independent oil supply unit, avoid that accident appears in unlubricated friction between Tuo Wa and the roll neck owing to decompression causes.Cleaning unit can make the lubricating oil cleaning that recycles durable, guarantees the oil quality in the fluid pressure line, has saved the energy, has guaranteed the quality of roll dressing.
Description of drawings
The utility model is described in further detail below in conjunction with drawings and Examples.
Fig. 1 is the schematic diagram of carriage position on roll grinder, front and back;
Fig. 2 is the schematic diagram of tail-bracket, be among Fig. 1 A-A to cutaway view;
Fig. 3 is the schematic diagram of the tail-bracket of embodiment one described device of the present utility model, is that B among Fig. 2 is to view;
Fig. 4 is the holder watt upper static pressure oil groove of embodiment one of the present utility model, two described devices and the schematic diagram of loading end, is the C-C profile among Fig. 3;
Fig. 5 is the asphalt principle schematic diagram of embodiment one described device of the present utility model;
Fig. 6 is the presser unit schematic diagram of embodiment three described devices of the present utility model;
Fig. 7 is the asphalt principle schematic diagram of embodiment four described devices of the present utility model;
Fig. 8 is the cleaning unit schematic diagram of embodiment five described devices of the present utility model.
The specific embodiment
Embodiment one:
Present embodiment is a kind of CNC roll grinder holder watt hydrostatic lubrication device, shown in Fig. 1,2,3,4,5.The described device of present embodiment comprises: be installed in respectively the side holder watts 3 on the tail-bracket 2 of the front rack 1 of headstock side and tailstock side, lower support tile 4, each the holder watt loading end 5 on comprise at least the quiet laminated oil zone of a slice, be provided with side by side the static pressure oil groove 6 that multiple tracks forms a circle on the loading end in each quiet laminated oil zone, be equipped with at least one oil outlet 7 on the per pass static pressure oil groove, each quiet laminated oil zone connects branch's Pressure gauge 902 separately, branch's pressure sensor 901 and branch's choke valve 903, form each quiet laminated oil zone oil supply unit 9 separately, described each oil supply unit is connected 11 by oil feed line 10 with presser unit, and described presser unit is connected with fuel reserve tank 12; Be respectively equipped with oil-recovery tank 8 on described front rack and the after-frame, described oil-recovery tank by return line 13 be connected circulation cleaning unit 14 with water separation tank with return filter and be connected, described circulation cleaning unit is connected with fuel reserve tank.
Forward and backward two places of operated by rotary motion hold up the carriage of roll neck on the roll grinder, lay respectively at headstock one side and tailstock one side, as shown in Figure 1.Set up up and down two places holder watt on each roll neck carriage: side holder watt and lower support tile, as shown in Figure 2 (Fig. 2 is tail-bracket, since identical on front rack and the tail-bracket structure, so Fig. 2 also can represent the structure of front rack).Tuo Wa is cast with the material that babbit etc. is usually used in making sliding bearing above the steel pedestal, be beneficial to reduce the friction with roll neck.
The metal covering of the babbit that the described loading end of present embodiment refers to hold in the palm watt generally is the concave surface of circular arc.One the holder watt on can set up a quiet laminated oil zone, also can set up two, three or even more quiet laminated oil zone.Can be provided with multiple tracks static pressure oil groove on the quiet laminated oil zone, shown in Fig. 3 is to have respectively two quiet laminated oil zones on side holder watt, the lower support tile, the hollow oil groove that each quiet laminated oil zone has twice side by side and forms a circle, the static pressure oil groove that can also have multiple tracks to form a circle in the reality.The shape that the static pressure oil groove surrounds also can be circle type or other shapes except hollow.The static pressure oil groove is connected with oil supply unit with oil outlet, and the pressure oil that oil supply unit is supplied with forms quiet laminated oil zone.Described quiet laminated oil zone is actual be the holder watt the metal surface and the carrying oil film between the roll neck, this carrying oil film has elasticity and minimum frictional force.The oil pressure that provides in oil supply unit of controlled thickness of carrying oil film, roll neck are under the effect of oil pressure, and actual is to be suspended on the loading end of holder watt, and the frictional force when mutually moving is very little.
The loading end of the middle part of static pressure oil groove corral can be lower than the loading end of static pressure oil groove corral outside slightly, can form a slice oil sump by the loading end in the middle of static pressure oil groove corral like this, makes lubricating oil better form oil film, produces better lubricant effect.
The supply that focuses on lubricating oil of present embodiment has the oil circuit of pressure lubricating oil.Supply with in the oil circuit at lubricating oil, each quiet laminated oil zone has separately independently oil supply unit, and each oil supply unit has branch's Pressure gauge, branch's pressure sensor and the branch's choke valve of oneself.The purpose that arranges like this is can regulate and control separately by branch's choke valve and branch's Pressure gauge the oil pressure on each quiet laminated oil zone, and the oil pressure on any one quiet laminated oil zone occurs changing and can adjust by branch's Pressure gauge identification of this quiet laminated oil zone with by branch's choke valve of this quiet laminated oil zone fast.In case another benefit of this independent oil supply unit is predetermined pressure condition to occur exceeding, branch's pressure sensor of the quiet laminated oil zone that goes wrong just can send the signal of telecommunication and report to the police, make operating personnel know that at once problem goes out on the quiet laminated oil zone of Na Yilu, not only avoid accident, can also quote fast the position of accident.And identify fast location of fault, very important for operation site.
The described presser unit of present embodiment is take oil pump as core, for oil circuit provides pressure.For the ease of regulating oil pressure and failure judgement, presser unit can be provided with total pressure sensor and gross pressure table, and is provided with pressure filter and overflow valve.
The Main Function of the cleaning unit that present embodiment is set up is cooling fluid and other impurity that separation lubrication oil is sneaked in reflux course.Therefore, cleaning unit at first needs water-oil separating, through filter other contaminant filters in the lubricating oil is fallen again.Water-oil separating can be used a water separation tank, makes the larger depositing in water of proportion enter the bottom of water separation tank, and the lubricating oil that proportion is lighter then flows out from the top of case.
Present embodiment described branch pressure sensor and total pressure sensor can be pressure switches, perhaps other similar pressure sensors that the signal that oil pressure changes can be become the signal of telecommunication.
The Lubricating Oil film pressure that the described oil supply unit of present embodiment provides is 1.5MPa～10MPa.In the present oil circuit of this pressure body in the carrying oil film of each fuel feed pump and quiet laminated oil zone.The size of oil pressure is main according to the size of workpiece, the size of cutting force, and on-the-spot various factors and determining.
Trouble point when breaking down for fast definite oil circuit can install valve additional respectively in the two-way oil pipe line after oil circuit is split up into headstock side oil feed line and tailstock side oil feed line, utilize the switching of valve, fast the position of failure judgement.Described valve can be two-position three-way valve or other similar valves.
Embodiment two:
Present embodiment is the improvement of embodiment one, is that embodiment one is about the refinement of Tuo Wa, as shown in Figure 4.This implement described holder watt by the loading end 501 of described static pressure oil groove corral a little less than around loading end 502.Described holder watt be provided with two quiet laminated oil zones, be provided with side by side the static pressure oil groove that twice surround a rectangular loop in each quiet laminated oil zone, the bottom of each road static pressure oil groove is respectively equipped with an oil outlet.
The described static pressure oil groove of present embodiment surrounds hollow, a slice " low-lying " that the loading end in the centre of hollow forms, and low-lying and static pressure oil groove forms a slice oil sump (see figure 4), can store more lubricating oil in the oil sump.Oil film thickness around oil film thickness in the oil sump is slightly larger than, when oil film is squeezed (during the support roll neck), lubricating oil in the oil sump not only produces pressure to the bottom of oil sump, also the surrounding of oil sump produced pressure, under the reaction force of oil sump surrounding wall, produce the effect that oil is assembled to the oil sump center, can make like this oil film have more elasticity.General low 0.5-2 millimeter is compared in the bottom of oil sump with loading end on every side.
Present embodiment is provided with two quiet laminated oil zones, in other words is: holder is watt with two oil supply unit fuel feeding.A quiet laminated oil zone has two static pressure oil grooves, and these two static pressure oil grooves are arranged side by side in a quiet laminated oil zone, with an oil supply unit fuel feeding.Because a roll grinder has former and later two carriages, side holder watt and lower support tile are arranged on each carriage, in each holder watt two quiet laminated oil zones are arranged, like this, just need 8 oil supply units to supply with respectively the lubricating oil (seeing Fig. 5,7) of 8 quiet laminated oil zones.Because these 8 oil supply units all have separately branch's Pressure gauge, branch's pressure sensor and branch's choke valve, 8 branch's Pressure gauges can be arranged and be installed together, and branch's choke valve also arranged be installed in branch Pressure gauge next door, as long as indicate the static pressure oil zone position of each Pressure gauge representative, under the cooperation of branch's sensor, just can compare and judge fast the situation of 8 quiet laminated oil zones, it is very convenient to adjust and discharge fault.
Embodiment three:
Present embodiment is the improvement of above-described embodiment, is that above-described embodiment is about the refinement of presser unit, as shown in Figure 6.The described presser unit of present embodiment comprises: the total pressure sensor 1105 that is connected with described oil feed line, gross pressure table 1101, overflow valve 1104 and pressure filter 1102, described pressure filter is connected with electric lubricating oil pump 1103, and described electronic lubricating pump is connected with fuel reserve tank.Described total pressure sensor is pressure switch.
Embodiment four:
Present embodiment is the improvement of above-described embodiment, is that above-described embodiment is about the refinement of oil feed line.As shown in Figure 7.The described oil feed line of present embodiment is divided into headstock side oil feed line 1001 and tailstock side oil feed line 1003 two-way, described tailstock side oil feed line and the headstock side oil feed line two-way two-position three- way valve 1002,1004 of connecting respectively, the normally closed path of described two-position three-way valve connects oil supply unit and presser unit, and the road of often opening of described two-position three-way valve connects presser unit and fuel reserve tank.
Embodiment five:
Present embodiment is the improvement of above-described embodiment, is that above-described embodiment is about the refinement of cleaning unit, as shown in Figure 8.The described cleaning unit of present embodiment comprises: the water separation tank 1404 that is connected with oil return pipe, described water separation tank is provided with liquid level gauge 1402 and position-limiting control switch 1401, the bottom of described water separation tank is provided with delivery port 1403, described water-oil separating upper box part is provided with oil-out 1405, described oil-out connects return filter 1406, and described return filter is connected with fuel reserve tank.
It should be noted that at last, below only unrestricted in order to the technical solution of the utility model to be described, although with reference to the preferred arrangement scheme the utility model is had been described in detail, those of ordinary skill in the art is to be understood that, can make amendment or be equal to replacement the technical solution of the utility model (such as selecting of the connected mode of the form of oil supply unit, pipeline, hydraulic component etc.), and not break away from the spirit and scope of technical solutions of the utility model.
Claims (9)
1. CNC roll grinder holder watt hydrostatic lubrication device, comprise: be installed in respectively the side holder watt on the tail-bracket of the front rack of headstock side and tailstock side, lower support tile, it is characterized in that, each holder watt comprises the quiet laminated oil zone of a slice at least, be provided with side by side the static pressure oil groove that multiple tracks forms a circle on each quiet laminated oil zone, be equipped with at least one oil outlet on the per pass static pressure oil groove, each quiet laminated oil zone connects branch's Pressure gauge separately, branch's pressure sensor and branch's choke valve, form each quiet laminated oil zone oil supply unit separately, described each oil supply unit is connected with presser unit by oil feed line, and described presser unit is connected with fuel reserve tank; Be respectively equipped with oil-recovery tank on described front rack and the after-frame, described oil-recovery tank by return line be connected the circulation cleaning unit with water separation tank with return filter and be connected, described circulation cleaning unit is connected with fuel reserve tank.
2. device according to claim 1 is characterized in that, the Lubricating Oil film pressure that described oil supply unit provides is 1.5MPa～10MPa.
3. device according to claim 1 is characterized in that, described branch pressure sensor is pressure switch.
4. one of according to claim 1-3 described device is characterized in that, described holder watt by the loading end (501) of described static pressure oil groove corral a little less than around loading end.
5. device according to claim 4 is characterized in that, described holder watt is provided with two quiet laminated oil zones, is provided with side by side the static pressure oil groove that twice surround a rectangular loop in each quiet laminated oil zone, and the bottom of each road static pressure oil groove is respectively equipped with an oil outlet.
6. described device one of according to claim 1-3, it is characterized in that, described presser unit comprises: the total pressure sensor that is connected with described oil feed line, gross pressure table, overflow valve and pressure filter, described pressure filter is connected with electric lubricating oil pump, and described electronic lubricating pump is connected with fuel reserve tank.
7. device according to claim 6 is characterized in that, described total pressure sensor is pressure switch.
8. described device one of according to claim 1-3, it is characterized in that, described oil feed line is divided into headstock side oil feed line and tailstock side oil feed line two-way, described headstock side oil feed line and the tailstock side oil feed line two-way two-position three-way valve of connecting respectively, the normally closed path of described two-position three-way valve connects oil supply unit and presser unit, and the road of often opening of described two-position three-way valve connects presser unit and fuel reserve tank.
9. described device one of according to claim 1-3, it is characterized in that, described cleaning unit comprises: the water separation tank that is connected with oil return pipe, described water separation tank is provided with liquid level gauge and position-limiting control switch, the bottom of described water separation tank is provided with delivery port, described water-oil separating upper box part is provided with oil-out, and described oil-out connects return filter, and described return filter is connected with fuel reserve tank.
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201220625371 CN202894991U (en) | 2012-11-23 | 2012-11-23 | Computerized numerical control (CNC) roll grinding machine supporting tile hydrostatic lubrication device |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201220625371 CN202894991U (en) | 2012-11-23 | 2012-11-23 | Computerized numerical control (CNC) roll grinding machine supporting tile hydrostatic lubrication device |
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| CN202894991U true CN202894991U (en) | 2013-04-24 |
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Cited By (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104084855A (en) * | 2014-07-15 | 2014-10-08 | 首钢总公司 | Roll grinder static pressure support tile no-pressure protection device and method |
| CN104154120A (en) * | 2014-07-23 | 2014-11-19 | 宁波中德高隆精密机械有限公司 | Dynamic pressure and static pressure combined bearing bush device |
| CN107806951A (en) * | 2017-11-28 | 2018-03-16 | 力博重工科技股份有限公司 | Adjustable load roller revolving resistance detection means |
| CN108167632A (en) * | 2017-12-21 | 2018-06-15 | 新兴铸管（浙江）铜业有限公司 | Tandem mill Lubricating-oil Station pollution prewarning governing system and method |
| CN108655844A (en) * | 2017-03-30 | 2018-10-16 | 江苏大亚铝业有限公司 | Grinding wheel roll climb-cut grinding device and application method |
| CN113653931A (en) * | 2021-07-30 | 2021-11-16 | 南京钢铁股份有限公司 | Method for improving use reliability of 5M rolling mill stand roller lubricating system |
-
2012
- 2012-11-23 CN CN 201220625371 patent/CN202894991U/en not_active Expired - Lifetime
Cited By (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104084855A (en) * | 2014-07-15 | 2014-10-08 | 首钢总公司 | Roll grinder static pressure support tile no-pressure protection device and method |
| CN104154120A (en) * | 2014-07-23 | 2014-11-19 | 宁波中德高隆精密机械有限公司 | Dynamic pressure and static pressure combined bearing bush device |
| CN108655844A (en) * | 2017-03-30 | 2018-10-16 | 江苏大亚铝业有限公司 | Grinding wheel roll climb-cut grinding device and application method |
| CN107806951A (en) * | 2017-11-28 | 2018-03-16 | 力博重工科技股份有限公司 | Adjustable load roller revolving resistance detection means |
| CN108167632A (en) * | 2017-12-21 | 2018-06-15 | 新兴铸管（浙江）铜业有限公司 | Tandem mill Lubricating-oil Station pollution prewarning governing system and method |
| CN113653931A (en) * | 2021-07-30 | 2021-11-16 | 南京钢铁股份有限公司 | Method for improving use reliability of 5M rolling mill stand roller lubricating system |
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| CP01 | Change in the name or title of a patent holder |
Address after: 101100, Beijing Zhongguancun Tongzhou District science and Technology Park, Tongzhou Park light mechanical and electrical integration industrial base No. 2 Patentee after: BEIJING SINTAI AUTOMATION TECHNOLOGY CO.,LTD. Address before: 101100, Beijing Zhongguancun Tongzhou District science and Technology Park, Tongzhou Park light mechanical and electrical integration industrial base No. 2 Patentee before: BEIJING SINTAI AUTOMATION TECHNIQUE CO.,LTD. |
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| EE01 | Entry into force of recordation of patent licensing contract |
Assignee: Beijing Ander Rich Xintai Engineering Technology Co.,Ltd. Assignor: BEIJING SINTAI AUTOMATION TECHNOLOGY CO.,LTD. Contract record no.: 2016990000486 Denomination of utility model: Computerized numerical control (CNC) roll grinding machine supporting tile hydrostatic lubrication device Granted publication date: 20130424 License type: Exclusive License Record date: 20161209 |
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| LICC | Enforcement, change and cancellation of record of contracts on the licence for exploitation of a patent or utility model | ||
| CX01 | Expiry of patent term | ||
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Granted publication date: 20130424 |