CN201324992Y - Double-raceway one-time grinding number control machine tool for high-speed railway bearing outer ring - Google Patents
Double-raceway one-time grinding number control machine tool for high-speed railway bearing outer ring Download PDFInfo
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- CN201324992Y CN201324992Y CNU2008201497505U CN200820149750U CN201324992Y CN 201324992 Y CN201324992 Y CN 201324992Y CN U2008201497505 U CNU2008201497505 U CN U2008201497505U CN 200820149750 U CN200820149750 U CN 200820149750U CN 201324992 Y CN201324992 Y CN 201324992Y
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Abstract
The utility model relates to a double-raceway one-time grinding number control machine tool for a high-speed railway bearing outer ring, which belongs to the technical field of bearing grinding and processing and overcomes the disadvantages in other technologies. The number control machine tool is formed by connecting a bed body part, a workpiece axle part, a workpiece axle box part, an electromagnetic coreless fixture part, a supporting tool part, a grinding wheel dresser part, a grinding wheel axle part, a grinding wheel axle seat part, a grinding wheel axle longitudinal feeding part, a grinding wheel axle transverse feeding part, an automatic feeding and discharging part, a hydraulic driving part and an active measurement part. The grinding wheel is modified into a V shape through the interpolation functions of the two axles, two raceways can be synchronously ground in one-time chucking, and the design datum, and the processing datum and the assembly datum are coincided. Therefore, the utility model ensures that the processed products meet the requirement of design accuracy, and the purpose is achieved; and the railway bearing products processed by using the device has the machining precision capable of meeting the requirement of international P5-level accuracy and has stable quality.
Description
One, technical field:
The utility model relates to the bearing grinding process technology, and especially the two raceways of high-speed railway bearing outer ring once grind Digit Control Machine Tool.
Two, background technology:
Country proposes to greatly develop the railway traffic cause in " 15 " development plan.During calendar year 2001 to 2005 year, the China railways traffic is rapidly developed.The production capacity of domestic railway bearing also is greatly improved thereupon, but does not still satisfy national economic development needs.Market demands provide high-quality, and high-caliber product improves the reliability of bearing service life, speed and Geng Gao, and this is a problem that urgency is to be studied.
There are 5 families at present domestic main production railway truck bearing producer.The two raceways in this class railway truck bearing outer ring of grinding all adopt general grinding machine M250 equipment, are installed for twice to finish two raceway grindings.The problem of using this equipment to exist is: changed design, reference for assembling in the process, therefore do not guaranteed the requirement of design accuracy.If the bearings synthesis index does not reach designing requirement, can make bearing cause bearing to reach fatigue limit too early at work because of running accuracy is bad, cause hot-tempered sound big simultaneously, defectives such as temperature rise height have shortened bearing service life.
Because the backwardness of Production of bearing equipment causes unstable product quality, bearing of producing and market demands have certain gap.
Three, summary of the invention:
The purpose of this utility model provide a kind of in once being installed simultaneously the two raceways of the high-speed railway bearing outer ring of two raceways of grinding once grind Digit Control Machine Tool.It has overcome the shortcoming that other technology exists, the purpose of this utility model is to realize like this, it be by lathe bed part, workpiece spindle part, workpiece axle box part, electric magnetic no-core jig part, supporting frock part, dresser part, grinding wheel spindle part, emery wheel axle bed part, grinding wheel spindle length feed part, grinding wheel spindle traverse feed part, automatic charging and blanking part, hydraulic-driven part and initiatively measure portion be formed by connecting, the workpiece spindle part cooperates together by the hole with workpiece axle box part, fixes with holding screw; Electric magnetic no-core jig part then is fixed on the operative end surface of workpiece axle box with hexagon socket head cap screw, guarantees with the workpiece spindle part concentric; Supporting frock part is fastened on the electric magnetic no-core jig by bolt, but the supporting of the workpiece of the weight of holding workpieces and adaptation different size; Workpiece axle box part is connected on the revolution backing plate by bolt, be fastened on automatic charging in addition and blanking part, hydraulic-driven part and the active measure portion of turning round on the backing plate by bolt, can guarantee revolution, automatic charging and blanking part, hydraulic-driven part, initiatively measure portion and the adjusting arbitrarily in 0-30 ° of scope synchronously of workpiece axle box part by sprocket wheel; Revolution backing plate lower end is can be along the dovetail-shaped slide plate that radially reaches axial adjustment of workpiece spindle, and dovetail-shaped slide plate then is connected to the lathe bed part by bolt.
Grinding wheel spindle traverse feed part also is connected on the lathe bed part by bolt, and the dresser part then is fastened on the front end of grinding wheel spindle traverse feed part by dovetail list groove and screw; Grinding wheel spindle length feed part is connected on the last planker of grinding wheel spindle traverse feed part by bolt; It is power source that last planker adopts servomotor, drives the ball-screw rotation, is converted into rectilinear motion by feed screw nut, drags to move back and forth about the grinding wheel spindle length feed is partly realized; Emery wheel axle bed part is cast into one with the last planker of grinding wheel spindle length feed part, and the grinding wheel spindle part partly cooperates together with the emery wheel axle bed, uses screw in compression; It is power source that the last planker of grinding wheel spindle length feed part also adopts servomotor, drives the ball-screw rotation, is converted into rectilinear motion by feed screw nut, drags grinding wheel spindle and realizes that partly front and back move back and forth.
Operation principle: the emery wheel in the utility model is the revised forming grinding wheel of trimmer by numerical control control, be fixed on the emery wheel extension bar, spacer sleeve is non-grinding area in two emery wheels, its thickness is decided according to the physical dimension of workpiece to be machined, and the power source that drives the rotation of emery wheel extension bar is to be attached thereto the electric main shaft that connects.Workpiece to be machined then is fixed on the positioning support that is connected with the electric magnetic no-core jig through the electromagnetic force effect, together rotates with positioning support.Workpiece to be machined produces relative motion with the emery wheel that is fixed on the emery wheel extension bar thus, realizes grinding work.
For realizing the above-mentioned operation principle of grinding, the equipment each several part is being undertaken different requirements, realizes different functions.Mainly contain following several respects;
(1), workpiece box is based on the revolute function of workpiece, design can along workpiece spindle radially reach axial adjustment, the angle of workpiece box can be regulated arbitrarily in 0-30 ° of scope.
(2), workpiece spindle adopts telescoping structure, be installed in the workpiece casing.Be that to adjust motor with the frequency conversion of YJTG132S-6 type be power source, by frequency converter, the speed of mainshaft can be regulated arbitrarily in the 150-260r/min scope, to guarantee to obtain constant linear velocity when the processing different-diameter bearing.
(3), grinding wheel spindle adopts electric main shaft high-power, high rigidity, its characteristic is: spindle power improves with rotating speed and increases, and when rotating speed reached 5000rpm, power transferred permanent power to: when rotating speed reached 12000rpm, power improved with rotating speed and reduces.And the moment of torsion initial value is a steady state value, and torque value descends with the rotating speed raising when rotating speed reaches 5000rpm.Grinding wheel spindle is installed in vertically in the emery wheel axle bed on (Z axle) planker.The emery wheel axle bed of high rigidity provides solid condition for the grinding wheel spindle steady operation.
(4), the emery wheel feed mechanism is one of most important mechanism of this machine, this mechanism is made up of two-layer orthogonal planker up and down, the difference when vertically (Z axle) feeding when realizing grinding work piece respectively, horizontal (X to) feeding and crushing convexity cover to.It is power source that two-layer planker all adopts servomotor, drives the ball-screw rotation, is converted into rectilinear motion by feed screw nut, realizes feed motion.Servomotor is Japan's FA NUC β 22is and FANUC β 12is; Ball-screw is Japanese TKH product.For guaranteeing crudy and crushing convexity, all adopt C
0Level high precision ball leading screw; Roller guide is German INA product, Q
2Level high accuracy guide rail.The product linear roller bearing of German INA has been adopted in the gap when eliminating the guide rail operation simultaneously, by preloading, eliminates the gap, guarantees to add the precision in man-hour.
(5), clamping workpiece adopts electric magnetic no-core clamp, consider that the railway bearing workpiece is wide, weight is big, precision prescribed is high, fulcrum has adopted the double containing point supporting of orthodrome, the fulcrum material is a carbide alloy, to improve the rigidity and the wearability of supporting, angle between two fulcrums can be regulated simultaneously, so that eliminate because the excircle of workpiece mismachining tolerance is brought influence.
Using the effect of the utility model equipment is to improve the bearing grinding crudy greatly.Enhance productivity simultaneously, reduce the Production of bearing cost.
Four, description of drawings:
Fig. 1 once grinds the structural representation of Digit Control Machine Tool for the two raceways of high-speed railway bearing outer ring, among the figure 1, lathe bed part 2, workpiece spindle part 3, workpiece axle box part 4, electric magnetic no-core jig part 5, supporting frock part 6, dresser part 7, grinding wheel spindle part 8, emery wheel axle bed part 9, grinding wheel spindle length feed part 10, grinding wheel spindle traverse feed part
Fig. 2 once grinds the structural representation of Digit Control Machine Tool for the two raceways of high-speed railway bearing outer ring, among the figure 11, automatic charging and blanking part 12, hydraulic-driven part 13, measure portion initiatively
Fig. 3 is the profile of Principle of Grinding and Cutting
Five, the specific embodiment:
In Fig. 1, Fig. 2 and Fig. 3, lathe bed part 1 is the basis of realizing the every function of lathe, and workpiece spindle part 2 cooperates together by the hole with workpiece axle box part 3, fixes with holding screw; 4 of electric magnetic no-core jig parts are fixed on hexagon socket head cap screw on the operative end surface of workpiece axle box, guarantee concentric with workpiece spindle part 2; Supporting frock part 5 is fastened on the electric magnetic no-core jig 4 by bolt, but the supporting of the workpiece of the weight of holding workpieces and adaptation different size; Workpiece axle box part 3 is connected on the revolution backing plate by bolt, be fastened on automatic charging in addition and blanking part 11, hydraulic-driven part 12 and the active measure portion 13 of turning round on the backing plate by bolt, can guarantee revolution, automatic charging and blanking part 11, hydraulic-driven part 12, initiatively measure portion 13 and workpiece axle box part 3 adjusting arbitrarily in 0-30 ° of scope synchronously by sprocket wheel; Revolution backing plate lower end is can be along the dovetail-shaped slide plate that radially reaches axial adjustment of workpiece spindle, and dovetail-shaped slide plate then is connected to lathe bed part 1 by bolt.
Grinding wheel spindle traverse feed part 10 also is connected on the lathe bed part 1 by bolt, and dresser part 6 then is fastened on the front end of grinding wheel spindle traverse feed part 10 by dovetail list groove and screw; Grinding wheel spindle length feed part 9 is connected on the last planker of grinding wheel spindle traverse feed part 10 by bolt; It is power source that last planker adopts servomotor, drives the ball-screw rotation, is converted into rectilinear motion by feed screw nut, drags to move back and forth about grinding wheel spindle length feed part 9 realizes; Emery wheel axle bed part 8 is cast into one with the last planker of grinding wheel spindle length feed part 9, and grinding wheel spindle part 7 cooperates together with emery wheel axle bed part 8, uses screw in compression; It is power source that the last planker of grinding wheel spindle length feed part 9 also adopts servomotor, drives the ball-screw rotation, is converted into rectilinear motion by feed screw nut, drags grinding wheel spindle part 7 and realizes that front and back move back and forth.
Operation principle: the emery wheel in the utility model is the revised forming grinding wheel of trimmer by numerical control control, be fixed on the emery wheel extension bar, spacer sleeve is non-grinding area in two emery wheels, its thickness is decided according to the physical dimension of workpiece to be machined, and the power source that drives the rotation of emery wheel extension bar is to be attached thereto the electric main shaft that connects.Workpiece to be machined then is fixed on the positioning support that is connected with the electric magnetic no-core jig through the electromagnetic force effect, together rotates with positioning support.Workpiece to be machined produces relative motion with the emery wheel that is fixed on the emery wheel extension bar thus, realizes grinding work.
For realizing the above-mentioned operation principle of grinding, the equipment each several part is being undertaken different requirements, realizes different functions.Mainly contain following several respects;
(1), workpiece box is based on the revolute function of workpiece, design can along workpiece spindle radially reach axial adjustment, the angle of workpiece box can be regulated arbitrarily in 0-30 ° of scope.
(2), workpiece spindle adopts telescoping structure, be installed in the workpiece casing.Be that to adjust motor with the frequency conversion of YJTG132S-6 type be power source, by frequency converter, the speed of mainshaft can be regulated arbitrarily in the 150-260r/min scope, to guarantee to obtain constant linear velocity when the processing different-diameter bearing.
(3), grinding wheel spindle adopts electric main shaft high-power, high rigidity, its characteristic is: spindle power improves with rotating speed and increases, and when rotating speed reached 5000rpm, power transferred permanent power to: when rotating speed reached 12000rpm, power improved with rotating speed and reduces.And the moment of torsion initial value is a steady state value, and torque value descends with the rotating speed raising when rotating speed reaches 5000rpm.Grinding wheel spindle is installed in vertically in the emery wheel axle bed on (Z axle) planker.The emery wheel axle bed of high rigidity provides solid condition for the grinding wheel spindle steady operation.
(4), the emery wheel feed mechanism is one of most important mechanism of this machine, this mechanism is made up of two-layer orthogonal planker up and down, the difference when vertically (Z axle) feeding when realizing grinding work piece respectively, horizontal (X to) feeding and crushing convexity cover to.It is power source that two-layer planker all adopts servomotor, drives the ball-screw rotation, is converted into rectilinear motion by feed screw nut, realizes feed motion.Servomotor is Japan's FA NUC β 22is and FANUC β 12is; Ball-screw is Japanese TKH product.For guaranteeing crudy and crushing convexity, all adopt C
0Level high precision ball leading screw; Roller guide is German INA product, Q
2Level high accuracy guide rail.The product linear roller bearing of German INA has been adopted in the gap when eliminating the guide rail operation simultaneously, by preloading, eliminates the gap, guarantees to add the precision in man-hour.
(5), clamping workpiece adopts electric magnetic no-core clamp, consider that the railway bearing workpiece is wide, weight is big, precision prescribed is high, fulcrum has adopted the double containing point supporting of orthodrome, the fulcrum material is a carbide alloy, to improve the rigidity and the wearability of supporting, angle between two fulcrums can be regulated simultaneously, so that eliminate because the excircle of workpiece mismachining tolerance is brought influence.
Claims (4)
1, the two raceways of high-speed railway bearing outer ring once grind Digit Control Machine Tool, it is by lathe bed part (1), workpiece spindle part (2), workpiece axle box part (3), electric magnetic no-core jig part (4), supporting frock part (5), dresser part (6), grinding wheel spindle part (7), emery wheel axle bed part (8), grinding wheel spindle length feed part (9), grinding wheel spindle traverse feed part (10), automatic charging and blanking part (11), hydraulic-driven part (12) and active measure portion (13) are formed by connecting, it is characterized in that: workpiece spindle part (2) cooperates together by the hole with workpiece axle box part (3), fixes with holding screw; Electric magnetic no-core jig part (4) then is fixed on the operative end surface of workpiece axle box with hexagon socket head cap screw, guarantees with workpiece spindle part (2) concentric; Supporting frock part (5) is fastened on the electric magnetic no-core jig (4) by bolt, but the supporting of the workpiece of the weight of holding workpieces and adaptation different size.
2, the two raceways of high-speed railway bearing outer ring according to claim 1 once grind Digit Control Machine Tool, it is characterized in that: workpiece axle box part (3) is connected on the revolution backing plate by bolt; Be fastened on automatic charging in addition and blanking part (11), hydraulic-driven part (12) and the active measure portion (13) of turning round on the backing plate by bolt, can guarantee the revolution by sprocket wheel, automatic charging and blanking part (11), hydraulic-driven part (12), active measure portion (13) are regulated arbitrarily in 0-30 ° of scope synchronously with workpiece axle box part (3); Revolution backing plate lower end is can be along the dovetail-shaped slide plate that radially reaches axial adjustment of workpiece spindle, and dovetail-shaped slide plate then is connected to lathe bed part (1) by bolt.
3, the two raceways of high-speed railway bearing outer ring according to claim 1 once grind Digit Control Machine Tool, it is characterized in that: grinding wheel spindle traverse feed part (10) is connected on the lathe bed part (1) by bolt, and dresser part (6) then is fastened on the front end of grinding wheel spindle traverse feed part (10) by dovetail list groove and screw; Grinding wheel spindle length feed part (9) is connected on the last planker of grinding wheel spindle traverse feed part (10) by bolt; It is power source that last planker can adopt servomotor, drives the ball-screw rotation, is converted into rectilinear motion by feed screw nut, drags to move back and forth about grinding wheel spindle length feed part (9) realizes.
4, the two raceways of high-speed railway bearing outer ring according to claim 1 once grind Digit Control Machine Tool, it is characterized in that: emery wheel axle bed part (8) is cast into one with the last planker of grinding wheel spindle length feed part (9), grinding wheel spindle part (7) cooperates together with emery wheel axle bed part (8), uses screw in compression; It is power source that the last planker of grinding wheel spindle length feed part (9) also adopts servomotor, can drive the ball-screw rotation, is converted into rectilinear motion by feed screw nut, drags grinding wheel spindle part (7) and realizes that front and back move back and forth.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNU2008201497505U CN201324992Y (en) | 2008-10-16 | 2008-10-16 | Double-raceway one-time grinding number control machine tool for high-speed railway bearing outer ring |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNU2008201497505U CN201324992Y (en) | 2008-10-16 | 2008-10-16 | Double-raceway one-time grinding number control machine tool for high-speed railway bearing outer ring |
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| CN201324992Y true CN201324992Y (en) | 2009-10-14 |
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| CNU2008201497505U Expired - Fee Related CN201324992Y (en) | 2008-10-16 | 2008-10-16 | Double-raceway one-time grinding number control machine tool for high-speed railway bearing outer ring |
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Cited By (14)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102225525A (en) * | 2011-04-25 | 2011-10-26 | 无锡市滚动轴承有限公司 | Fixture and method for processing convex degree of roller way of bearing outer ring |
| CN102463515A (en) * | 2010-11-09 | 2012-05-23 | 上海欧际柯特回转支承有限公司 | One-step form grinding method for double races |
| CN102626893A (en) * | 2012-04-10 | 2012-08-08 | 新昌县大成自动化设备有限公司 | Special grinding machine of irregular bearings |
| CN102756317A (en) * | 2012-07-09 | 2012-10-31 | 大连冶金轴承股份有限公司 | Small-size aligning spherical roller bearing outer ring raceway positioning and abrasive machining device and method |
| CN102990492A (en) * | 2012-12-10 | 2013-03-27 | 中山市盈科轴承制造有限公司 | Machining technology for grinding double bearing tracks and equipment thereof |
| CN103962914A (en) * | 2014-04-21 | 2014-08-06 | 浙江石轴数控设备有限公司 | Spherical roller bearing inner ring raceway grinder device and method thereof |
| CN104191334A (en) * | 2014-07-01 | 2014-12-10 | 宁波固特轴承有限公司 | Bearing outer ring groove grinding process |
| CN104308680A (en) * | 2014-10-09 | 2015-01-28 | 大连隆正光饰机制造有限公司 | Machine special for intelligently polishing inner loop, outer loop and roller of bearing channel |
| CN104551930A (en) * | 2014-12-16 | 2015-04-29 | 濮阳贝英数控机械设备有限公司 | Numerical control bearing grinding machine end surface supporting and finishing mechanism and implementation method thereof |
| CN107186557A (en) * | 2017-07-19 | 2017-09-22 | 江苏万达特种轴承有限公司 | A kind of bearing inner race inner hole part burr removal device with oilhole |
| CN107932268A (en) * | 2017-11-25 | 2018-04-20 | 邓力凡 | Special numerically controlled grinder for grinding outer raceway of outer circle and inner circle of bearing outer ring |
| CN108311957A (en) * | 2016-06-07 | 2018-07-24 | 嘉兴福可吉精密机械有限公司 | The outer ring grinding attachment of hub bearing |
| CN108381340A (en) * | 2018-05-04 | 2018-08-10 | 昆山日晟轴承有限公司 | A kind of asymmetric connecting shaft combination bearing, mill machining tool, mill processing method |
| CN114102292A (en) * | 2021-11-30 | 2022-03-01 | 清研精密轴承研究院(洛阳)有限公司 | Rotatable static-pressure double-grinding-wheel device |
-
2008
- 2008-10-16 CN CNU2008201497505U patent/CN201324992Y/en not_active Expired - Fee Related
Cited By (19)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102463515A (en) * | 2010-11-09 | 2012-05-23 | 上海欧际柯特回转支承有限公司 | One-step form grinding method for double races |
| CN102225525A (en) * | 2011-04-25 | 2011-10-26 | 无锡市滚动轴承有限公司 | Fixture and method for processing convex degree of roller way of bearing outer ring |
| CN102626893A (en) * | 2012-04-10 | 2012-08-08 | 新昌县大成自动化设备有限公司 | Special grinding machine of irregular bearings |
| CN102756317A (en) * | 2012-07-09 | 2012-10-31 | 大连冶金轴承股份有限公司 | Small-size aligning spherical roller bearing outer ring raceway positioning and abrasive machining device and method |
| CN102990492A (en) * | 2012-12-10 | 2013-03-27 | 中山市盈科轴承制造有限公司 | Machining technology for grinding double bearing tracks and equipment thereof |
| CN102990492B (en) * | 2012-12-10 | 2014-12-10 | 中山市盈科轴承制造有限公司 | Machining technology for grinding double bearing tracks and equipment thereof |
| CN103962914B (en) * | 2014-04-21 | 2016-05-18 | 浙江石轴数控设备有限公司 | A kind of spheric roller bearing ball track grinding machine of inner circle devices and methods therefor |
| CN103962914A (en) * | 2014-04-21 | 2014-08-06 | 浙江石轴数控设备有限公司 | Spherical roller bearing inner ring raceway grinder device and method thereof |
| CN104191334A (en) * | 2014-07-01 | 2014-12-10 | 宁波固特轴承有限公司 | Bearing outer ring groove grinding process |
| CN104308680A (en) * | 2014-10-09 | 2015-01-28 | 大连隆正光饰机制造有限公司 | Machine special for intelligently polishing inner loop, outer loop and roller of bearing channel |
| CN104308680B (en) * | 2014-10-09 | 2017-01-18 | 大连隆正光饰机制造有限公司 | Machine special for intelligently polishing inner loop, outer loop and roller of bearing channel |
| CN104551930A (en) * | 2014-12-16 | 2015-04-29 | 濮阳贝英数控机械设备有限公司 | Numerical control bearing grinding machine end surface supporting and finishing mechanism and implementation method thereof |
| CN104551930B (en) * | 2014-12-16 | 2017-02-22 | 濮阳贝英数控机械设备有限公司 | Numerical control bearing grinding machine end surface supporting and finishing mechanism and implementation method thereof |
| CN108311957A (en) * | 2016-06-07 | 2018-07-24 | 嘉兴福可吉精密机械有限公司 | The outer ring grinding attachment of hub bearing |
| CN107186557A (en) * | 2017-07-19 | 2017-09-22 | 江苏万达特种轴承有限公司 | A kind of bearing inner race inner hole part burr removal device with oilhole |
| CN107932268A (en) * | 2017-11-25 | 2018-04-20 | 邓力凡 | Special numerically controlled grinder for grinding outer raceway of outer circle and inner circle of bearing outer ring |
| CN108381340A (en) * | 2018-05-04 | 2018-08-10 | 昆山日晟轴承有限公司 | A kind of asymmetric connecting shaft combination bearing, mill machining tool, mill processing method |
| CN108381340B (en) * | 2018-05-04 | 2023-12-22 | 江苏日晟轴承股份有限公司 | Asymmetric connecting shaft combined bearing, grinding machine tool and grinding method |
| CN114102292A (en) * | 2021-11-30 | 2022-03-01 | 清研精密轴承研究院(洛阳)有限公司 | Rotatable static-pressure double-grinding-wheel device |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| PE01 | Entry into force of the registration of the contract for pledge of patent right |
Denomination of utility model: Double-raceway one-time grinding number control machine tool for high-speed railway bearing outer ring Effective date of registration: 20121030 Granted publication date: 20091014 Pledgee: Bank of China, Limited by Share Ltd, Puyang Renmin Road subbranch Pledgor: Puyang BEAIN CNC Machinery and Equipment Co., Ltd. Registration number: 2012990000658 |
|
| PLDC | Enforcement, change and cancellation of contracts on pledge of patent right or utility model | ||
| PC01 | Cancellation of the registration of the contract for pledge of patent right |
Date of cancellation: 20130808 Granted publication date: 20091014 Pledgee: Bank of China, Limited by Share Ltd, Puyang Renmin Road subbranch Pledgor: Puyang BEAIN CNC Machinery and Equipment Co., Ltd. Registration number: 2012990000658 |
|
| PE01 | Entry into force of the registration of the contract for pledge of patent right |
Denomination of utility model: Double-raceway one-time grinding number control machine tool for high-speed railway bearing outer ring Effective date of registration: 20130808 Granted publication date: 20091014 Pledgee: Bank of China, Limited by Share Ltd, Puyang Renmin Road subbranch Pledgor: Puyang BEAIN CNC Machinery and Equipment Co., Ltd. Registration number: 2013990000559 |
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