CN101870088B - Closed feed liquid self-sucking type inner cooling grinding wheel device for face grinding - Google Patents
Closed feed liquid self-sucking type inner cooling grinding wheel device for face grinding Download PDFInfo
- Publication number
- CN101870088B CN101870088B CN201010208567XA CN201010208567A CN101870088B CN 101870088 B CN101870088 B CN 101870088B CN 201010208567X A CN201010208567X A CN 201010208567XA CN 201010208567 A CN201010208567 A CN 201010208567A CN 101870088 B CN101870088 B CN 101870088B
- Authority
- CN
- China
- Prior art keywords
- grinding wheel
- grinding
- base body
- knife
- handle
- 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.)
- Expired - Fee Related
Links
Images
Landscapes
- Polishing Bodies And Polishing Tools (AREA)
Abstract
The invention relates to a closed feed liquid self-sucking type inner cooling grinding wheel device for face grinding, which comprises a knife handle, a fixing assembly, and a rotating assembly. The upper end of the knife handle is connected with a high-speed spindle of a grinding machine; and the lower end of the knife handle is provided with a cylinder with a threaded hole therein, and is connected with the rotating assembly. The fixing assembly comprises a fixing chuck, a grinding wheel outer sleeve, and a water inlet pipe. The rotating assembly comprises a grinding wheel base body, an adjusting cushion block, an overflow fixing piece and an overflow disc. Six inclined holes which form an inclined angle with the axial direction and the circumferential direction of the grinding wheel are formed on the grinding wheel base body; the directions of the inclined holes are consistent with the flow direction of cooling liquid; and the holes generate turbine effect by using liquid inertia and high-speed rotation of the grinding wheel so as to force the cooling liquid to flow. The whole assembly has a simple structure; and during use, only the grinding wheel base body needs to be changed, and other components can be used for a long time. By using the centrifugal force action generated by high-speed rotation of the grinding wheel per se, the effects of self-sucking and pressurization on the cooling liquid are achieved; and the injection direction and position of the cooling liquid can be adjusted.
Description
Technical field
The present invention relates to a kind of interior cooling of closed feed liquid self-sucking type grinding wheel unit that is used for cross grinding; Specifically be meant in grinding process the grinding wheel unit that cools off in carrying out with the mode of closed supply grinding fluid, be used in particular for high-speed grinding and be the grinding method of cross grinding.
Background technology
Along with the development of high speed and ultrahigh speed grinding technology, the extensive use of difficult-to-machine material in industry, and in the grinding to the raising of surperficial quality requirement, the control for grinding temperature in the grinding process also seems particularly important.And improve the feed liquid way of grinding fluid, and improve cooling effect, can improve grinding quality from reducing grinding temperature to a great extent.In be cooled to a kind of mode that can effectively promote cooling effect in the grinding feed liquid way; The grinding wheel unit of cooling is existing in the prior art a lot of in adopting; For example the Chinese patent file CN on May 30th, 2007 has provided a kind of like this emery wheel for 1970231A number; Promptly utilize the open structure characteristics of apertured emery wheel,, utilize centrifugal force to make grinding fluid be transported to grinding area through the emery wheel hole through the mode of collecting ring is installed in the emery wheel both sides; This construction package is only applicable to the conventional abrasive material emery wheel of apertured, and the grinding fluid supply is little.On November 30th, 1999, U.S.'s patent document provided a kind of like this emery wheel for No. 5993297; Adopt the mode of handle of a knife centre bore feed flow to make cooling fluid get into the emery wheel internal cavities; Aperture through three circle different directions on the emery wheel circumference throws away again; This construction package has specific (special) requirements or needs special external-change-internal device for cooling main shaft, and is only applicable to the week mill.From present existing grinding wheel structure and cooling fluid supply mode, the great majority design is to be used for all grinding abrasive disks in the interior cooling feed liquid way, is necessary to develop the interior cooling grinding wheel unit of realizing cross grinding.
Summary of the invention
The object of the present invention is to provide a kind of interior cooling of closed feed liquid self-sucking type grinding wheel unit that is used for cross grinding; Be a kind of different with prior art, be used for interior cooling grinding wheel unit cross grinding, that can produce the self-priming effect to grinding fluid; But this device is enhanced cooling in use, reduces grinding temperature.
The objective of the invention is to realize like this, a kind of interior cooling of closed feed liquid self-sucking type grinding wheel unit that is used for cross grinding promptly is provided, said device includes handle of a knife, fixation kit, rotary components; It is characterized in that:
Said handle of a knife upper end links to each other with the high-speed main spindle of grinding machine, and the lower end is the cylinder that screwed hole is arranged in, links to each other with rotary components, and under the high speed turning effort of main shaft, the driven rotary assembly is done rotation at a high speed together;
Said fixation kit comprises fixedly chuck, emery wheel overcoat, water inlet pipe; Fixedly chuck is connected with the emery wheel overcoat, is fixed on the lathe through top flange simultaneously, in grinding process, keeps static; The emery wheel overcoat is enclosed within on handle of a knife and the grinding wheel base body, and keeps matched in clearance with both, between emery wheel overcoat, handle of a knife and grinding wheel base body, forms one first liquid storage cylinder simultaneously; Water inlet pipe be fixed on that emery wheel puts outward and the through hole that puts outward with emery wheel corresponding, make cooling fluid can get into first liquid storage cylinder outward through the through hole that water inlet pipe and emery wheel put;
Said rotary components comprises grinding wheel base body, adjustment cushion block, overcurrent fixture, tray; This grinding wheel base body have six along grinding wheel spindle to all becoming the inclined hole at angle of inclination with circumferencial direction, it is consistent that direction and cooling fluid flow to, this hole will utilize the inertia of liquid and the high speed rotating generation turbine effect of emery wheel to force coolant flow.Grinding wheel base body upper end is provided with that two corresponding keyways match on two outstanding keys and the handle of a knife, and handle of a knife transmits moments of torsion drive grinding wheel base bodies through this two keys and rotates at work; The cylindrical hole on grinding wheel base body top cooperates with the face of cylinder of handle of a knife lower end cylinder outer surface and positions; Adjustment cushion block and tray are enclosed within on the overcurrent fixture, and the overcurrent fixture is connected with the screwed hole of handle of a knife lower end through screw thread, and with grinding wheel base body, adjust cushion block and tray axial locking on handle of a knife; Between grinding wheel base body, adjustment piece and tray, form one second liquid storage cylinder simultaneously.
Have four grooves (but being not limited to four) on the described tray.
Have the gap between described flow table and the overcurrent securing member.
On handle of a knife and grinding wheel base body, respectively have a circle helicla flute; Direction is identical with the flow direction of gas flow first liquid storage cylinder inside; Be in the matched in clearance place, the face of cylinder of the two and emery wheel overcoat respectively; Be the joint between fixation kit and the rotary components, be used for stoping cooling fluid to run off through sucking gas.
The advantage of apparatus of the present invention is that whole modular construction is simple, has adopted combining structure, only needs in the use to change grinding wheel base body, and miscellaneous part can use for a long time; Utilize emery wheel self to rotate the centrifugal action of generation at a high speed, reach self-priming, pressurized effect cooling fluid; Cooling fluid injection direction and position can be regulated; Matched in clearance between fixation kit and rotary components, the handle of a knife adopts the helicla flute hermetic seal, and is simple in structure, good sealing effect.This device goes for the cross grinding grinding wheel structure of multiple size and dimension.
Description of drawings
Fig. 1 is an integral installation distribution structure full sectional view of the present invention;
Fig. 2 is a grinding wheel base body structure key diagram of the present invention;
Fig. 3 is a tray structure key diagram of the present invention;
Fig. 4 is an overall appearance key diagram of the present invention;
Fig. 5 is a blast structure key diagram of the present invention.
Concrete label is following among the figure:
1, handle of a knife 2, fixedly chuck 3, emery wheel overcoat 4, water inlet pipe
5, grinding wheel base body 51, key 52, cylindrical hole 53, inclined hole
54,11, helicla flute 6, adjustment cushion block 7, overcurrent fixture 8, tray
81, groove 9, first liquid storage cylinder 10, second liquid storage cylinder
The specific embodiment
Below in conjunction with accompanying drawing, technical scheme of the present invention is done further explanation.
A kind of interior cooling of closed feed liquid self-sucking type grinding wheel unit that is used for cross grinding of the present invention, said device includes handle of a knife 1, fixation kit, rotary components.
Said handle of a knife 1 upper end links to each other with the high-speed main spindle of grinding machine, and the lower end is the cylinder that screwed hole is arranged in, links to each other with rotary components, and under the high speed turning effort of main shaft, the driven rotary assembly is done rotation at a high speed together.
Said fixation kit comprises fixedly chuck 2, emery wheel overcoat 3, water inlet pipe 4.Fixedly chuck 2 is connected with emery wheel overcoat 3, can or be threaded for welding, is fixed on the lathe through top flange simultaneously, in grinding process, keeps static.Emery wheel overcoat 3 is enclosed within on handle of a knife 1 and the grinding wheel base body 5, and keeps matched in clearance with both, between emery wheel overcoat 3, handle of a knife 1 and grinding wheel base body 5, forms one first liquid storage cylinder 9 simultaneously.Water inlet pipe 4 is fixed on the emery wheel overcoat 3 and is corresponding with the through hole on the emery wheel overcoat 3, makes cooling fluid can get into first liquid storage cylinder 9 through the through hole on water inlet pipe 4 and the emery wheel overcoat 3.
Said rotary components comprises grinding wheel base body 5, adjustment cushion block 6, overcurrent fixture 7, tray 8.Grinding wheel base body 5 upper ends are provided with that two corresponding keyways interlock on two outstanding keys 51 and the handle of a knife 1; Handle of a knife 1 (can also use other modes to transmit moment of torsion here through these two keys, 51 transmission moments of torsion drive grinding wheel base bodies, 5 rotations at work; Like the spline transmission; Frictional drive etc.), the cylindrical hole 52 on grinding wheel base body 5 tops cooperates with the cylinder outer surface of handle of a knife 1 lower end and positions.Adjustment cushion block 6 is enclosed within on the overcurrent fixture 7 with tray 8, and overcurrent fixture 7 is connected with the screwed hole of handle of a knife 1 lower end through screw thread, simultaneously with grinding wheel base body 5, adjust cushion block 6 and tray 8 axial lockings on handle of a knife 1; Between grinding wheel base body 5, adjustment piece 6 and tray 8, form one second liquid storage cylinder 10 simultaneously.Each parts carries out axial location through face of cylinder contact carrying out radial location through the upper and lower end face contact in the rotary components, and each locating surface all passes through grinding, has guaranteed the axiality between each part, to satisfy the requirement for dynamic balance of emery wheel work.
Consult Fig. 2 and Fig. 3, Fig. 2 and Fig. 3 are respectively the structure key diagram of grinding wheel base body 5 and tray 8.Emery wheel has the effect of self-priming to cooling fluid under rotating at a high speed.Have on the grinding wheel base body 5 six along grinding wheel spindle to the inclined hole 53 all angled with circumferencial direction, direction and cooling fluid flow to consistent, as shown in Figure 2.Cooling fluid at first gets into first liquid storage cylinder 9 by water inlet pipe 4; Then get into second liquid storage cylinder 10 along six inclined holes on the grinding wheel base body 5 53; Rotate at a high speed at emery wheel under the centrifugal action of generation; Cooling fluid is through four grooves 81 on the tray 8, and is as shown in Figure 3, and along the gap ejection that forms between tray 8 and the overcurrent securing member 7.The instantaneous vacuum that produce in second liquid storage cylinder 10 this moment produces the self-priming effect to cooling fluid, makes cooling fluid constantly get into emery wheel inside in a steady stream, makes cooling fluid produce bigger speed and pressure in the exit simultaneously under the centrifugal action.The cooling fluid direction and the eject position that are ejected into grinding area can be regulated.The gap that forms between tray 8 and the overcurrent securing member 7 at an angle, this angle has determined the direction of cooling fluid ejection, can confirm with size according to the structure of grinding wheel base body 5, makes cooling fluid emission direction sensing grinding area; Simultaneously,, can adjust the axial location of tray 8 and overcurrent securing member 7, thereby the control cooling fluid is ejected into the height of grinding area through using the adjustment piece 6 of different-thickness.Therefore,, and constantly wear and tear, can guarantee that still grinding fluid is ejected into the position of grinding area all the time at the grinding process medium plain emery wheel even the structure of grinding wheel base body 5 is different with size.
Consult Fig. 4 and Fig. 5, Fig. 4 and Fig. 5 are respectively the integral body and the explosive view of emery wheel outward appearance.As can beappreciated from fig. 5; On handle of a knife 1 and grinding wheel base body 5, respectively opened a circle helicla flute 11,54; The inner flow direction of direction and gas flow first liquid storage cylinder 9 is identical, is in the matched in clearance place, the face of cylinder of the two and emery wheel overcoat 3 respectively, i.e. joint between fixation kit and the rotary components.Like this when emery wheel rotates at a high speed; Can portion of air be brought into these two face of cylinder fit clearances from the top and bottom of emery wheel overcoat 3 respectively; First liquid storage cylinder 9 is played the effect of air seal; Prevent that cooling fluid from leaking, guarantee the pressure (also can not want helicla flute 11,54, reduce leaking of cooling fluid) of cooling fluid through the gap that reduces between handle of a knife 1, matrix 5 and the emery wheel overcoat 3.
Construction package of the present invention utilizes the centrifugal action of emery wheel work high speed rotation cleverly, plays supercharging and self-priming effect to cooling fluid, cooperates closed to supply the structure of cooling fluid, makes cooling fluid produce bigger pressure and flow in the exit.Utilize emery wheel to rotate at a high speed simultaneously, the matched in clearance between fixation kit and rotary components, the handle of a knife adopts the helicla flute hermetic seal, and is simple in structure.
Construction package of the present invention is for convenience detach, and most assemblies can be reused, and grinding wheel base body is unique refill-unit, and improves the wearing and tearing that cooling effect can effectively reduce emery wheel, prolong the service life of grinding wheel base body, so the present invention has very big economy.
Construction package of the present invention can be realized the adjusting of cooling fluid injection direction and eject position, makes cooling fluid directly act on grinding area, to reach optimum cooling effect.
The design feature of device of the present invention can be used for the grinding wheel structure of the various sizes and the shape of all cross grindings.
Claims (4)
1. cooling grinding wheel unit in the closed feed liquid self-sucking type that is used for cross grinding, said device includes handle of a knife, fixation kit, rotary components, it is characterized in that:
Said handle of a knife (1) upper end links to each other with the high-speed main spindle of grinding machine, and the lower end is the cylinder that screwed hole is arranged in, links to each other with rotary components, and under the high speed turning effort of main shaft, the driven rotary assembly is done rotation at a high speed together;
Said fixation kit comprises fixedly chuck (2), emery wheel overcoat (3), water inlet pipe (4); Fixedly chuck (2) is connected with emery wheel overcoat (3), and the flange through top is fixed on the lathe simultaneously, in grinding process, keeps static; Emery wheel overcoat (3) is enclosed within on handle of a knife (1) and the grinding wheel base body (5), and keeps matched in clearance with both, between emery wheel overcoat (3), handle of a knife (1) and grinding wheel base body (5), forms one first liquid storage cylinder (9) simultaneously; It is last and corresponding with the through hole on the emery wheel overcoat (3) that water inlet pipe (4) is fixed on emery wheel overcoat (3), makes cooling fluid get into first liquid storage cylinder (9) through the through hole on water inlet pipe (4) and the emery wheel overcoat (3);
Said rotary components comprises grinding wheel base body (5), adjustment cushion block (6), overcurrent fixture (7), tray (8); This grinding wheel base body (5) have six along grinding wheel spindle to all becoming the inclined hole (53) at angle of inclination with circumferencial direction; And grinding wheel base body (5) upper end is provided with two outstanding keys (51) and goes up two corresponding keyways with handle of a knife (1) and match, and handle of a knife (1) transmits moment of torsion drive grinding wheel base bodies (5) through this two keys (51) and rotates at work; The cylindrical hole (52) on grinding wheel base body (5) top cooperates with the face of cylinder of handle of a knife (1) lower end cylinder outer surface and positions; Adjustment cushion block (6) and tray (8) are enclosed within on the overcurrent fixture (7), and overcurrent fixture (7) is connected with the screwed hole of handle of a knife (1) lower end through screw thread, and with grinding wheel base body (5), adjust cushion block (6) and tray (8) axial locking on handle of a knife (1); Between grinding wheel base body (5), adjustment piece (6) and tray (8), form one second liquid storage cylinder (10) simultaneously.
2. the interior cooling of the closed feed liquid self-sucking type grinding wheel unit that is used for cross grinding according to claim 1 is characterized in that: have four grooves (81) on the described tray (8).
3. the interior cooling of the closed feed liquid self-sucking type grinding wheel unit that is used for cross grinding according to claim 1; It is characterized in that: have the gap between tray (8) and the overcurrent securing member (7); And the thickness of combination adjustment piece, guarantee that the cooling fluid emission direction points to grinding area.
4. the interior cooling of the closed feed liquid self-sucking type grinding wheel unit that is used for cross grinding according to claim 1; It is characterized in that: on handle of a knife (1) and grinding wheel base body (5), respectively have a circle left-handed helicla flute (11), right hand helix groove (54); Be in the matched in clearance place, the face of cylinder of the two and emery wheel overcoat (3) respectively, i.e. joint between fixation kit and the rotary components.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201010208567XA CN101870088B (en) | 2010-06-13 | 2010-06-13 | Closed feed liquid self-sucking type inner cooling grinding wheel device for face grinding |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201010208567XA CN101870088B (en) | 2010-06-13 | 2010-06-13 | Closed feed liquid self-sucking type inner cooling grinding wheel device for face grinding |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN101870088A CN101870088A (en) | 2010-10-27 |
| CN101870088B true CN101870088B (en) | 2012-07-04 |
Family
ID=42995265
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201010208567XA Expired - Fee Related CN101870088B (en) | 2010-06-13 | 2010-06-13 | Closed feed liquid self-sucking type inner cooling grinding wheel device for face grinding |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN101870088B (en) |
Families Citing this family (16)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102085609B (en) * | 2010-12-02 | 2012-06-20 | 李龙江 | Self-suction internally-cooled cutter |
| CN102294658A (en) * | 2011-08-30 | 2011-12-28 | 陕西秦川机械发展股份有限公司 | Grinding wheel device filled with cooling liquid |
| CN102528668A (en) * | 2012-02-27 | 2012-07-04 | 太仓凯鑫电子有限公司 | Grinding tool with internal cooling function |
| CN103341825A (en) * | 2013-07-02 | 2013-10-09 | 四川虹欧显示器件有限公司 | Non-contact hairbrush waterproof device |
| CN105563361A (en) * | 2015-12-09 | 2016-05-11 | 张嵩 | Grinding wheel |
| CN105666330A (en) * | 2016-04-13 | 2016-06-15 | 湘潭大学 | Novel grinding system |
| CN105945662A (en) * | 2016-05-11 | 2016-09-21 | 重庆红江机械有限责任公司 | Internal spray booster type grinding wheel rod |
| CN206732729U (en) * | 2017-03-17 | 2017-12-12 | 桂林创源金刚石有限公司 | A kind of diamond abnormity emery wheel and vertical processing cooling system |
| CN107214577A (en) * | 2017-07-19 | 2017-09-29 | 无锡威孚高科技集团股份有限公司 | A kind of miniature blind hole grinding mechanism, grinding attachment and the method for grinding of oil-feed valve seat |
| CN107471116B (en) * | 2017-07-28 | 2019-02-05 | 义乌市台荣超硬制品有限公司 | A kind of interannular water supply wheel structure |
| CN110480511B (en) * | 2019-08-30 | 2024-03-08 | 桂林创源金刚石有限公司 | External-rotating internal-cooling mechanism for grinding tool |
| CN110625529A (en) * | 2019-09-27 | 2019-12-31 | 惠州市速锋科技有限公司 | Grinding wheel capable of discharging water for cooling |
| CN110900331A (en) * | 2019-11-06 | 2020-03-24 | 广州市丹爵通讯科技有限公司 | A numerical control equipment of polishing that is used for filtering capability that has of panel processing |
| CN112792673B (en) * | 2021-02-05 | 2023-01-20 | 宁波北仑稳展机械有限公司 | Grinding machine grinding device |
| CN113370081B (en) * | 2021-07-30 | 2021-12-17 | 惠州捷姆复合材料有限公司 | Grinding machine based on gas phase change cooling |
| TWI805264B (en) * | 2022-03-10 | 2023-06-11 | 心源工業股份有限公司 | Grinding wheel set with cooling system |
Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| GB696198A (en) * | 1952-04-21 | 1953-08-26 | Bourdon Tools Ltd | A new or improved method of and means for applying liquid coolants and lubricants tothe cutting tools of machine tools and to the work pieces being operated upon by such cutting tools |
| CN2085284U (en) * | 1991-03-08 | 1991-09-25 | 席光表 | Grinding wheel |
| CN1234317A (en) * | 1996-06-15 | 1999-11-10 | 尤诺瓦英国有限公司 | Improved grinding and polishing machine tool |
| CN1994677A (en) * | 2006-01-05 | 2007-07-11 | 鸿富锦精密工业（深圳）有限公司 | Grinding wheel device |
| CN101407040A (en) * | 2008-11-11 | 2009-04-15 | 广东工业大学 | Face lapping mill with abrasive disk cooling mechanism |
-
2010
- 2010-06-13 CN CN201010208567XA patent/CN101870088B/en not_active Expired - Fee Related
Patent Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| GB696198A (en) * | 1952-04-21 | 1953-08-26 | Bourdon Tools Ltd | A new or improved method of and means for applying liquid coolants and lubricants tothe cutting tools of machine tools and to the work pieces being operated upon by such cutting tools |
| CN2085284U (en) * | 1991-03-08 | 1991-09-25 | 席光表 | Grinding wheel |
| CN1234317A (en) * | 1996-06-15 | 1999-11-10 | 尤诺瓦英国有限公司 | Improved grinding and polishing machine tool |
| CN1994677A (en) * | 2006-01-05 | 2007-07-11 | 鸿富锦精密工业（深圳）有限公司 | Grinding wheel device |
| CN101407040A (en) * | 2008-11-11 | 2009-04-15 | 广东工业大学 | Face lapping mill with abrasive disk cooling mechanism |
Also Published As
| Publication number | Publication date |
|---|---|
| CN101870088A (en) | 2010-10-27 |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN101870088B (en) | Closed feed liquid self-sucking type inner cooling grinding wheel device for face grinding | |
| CN101870087A (en) | Open feed liquid self-sucking type inner cooling grinding wheel device for face grinding | |
| CN109843508B (en) | Water-saving cooling system of glass processing center | |
| CN1091403C (en) | High speed hydrostatic spindle | |
| US6368052B2 (en) | Spindle device having turbine rotor | |
| CN201596542U (en) | Dynamic centrifugal discharge system of disc type sand grinder | |
| US8459904B2 (en) | Cutting insert and holder for rotating applications | |
| CN102284907B (en) | Grinding head spindle assembly provided with hollow cooling and washing structure of ball grinding machine | |
| US9815130B2 (en) | Calibration head for the drilling of shafts | |
| US10099314B2 (en) | Tool holder and machine tool | |
| CN101502887A (en) | Power head structure of deep-hole drilling machine | |
| CN206356999U (en) | Milling tool for combustion gas control block inverted cone bottom of chamber sealing surface | |
| CN107855900A (en) | A kind of two station composite polycrystal-diamond class polishing machines | |
| CN109332732A (en) | One kind can trailing type stability mainshaft mechanism | |
| RU2607062C2 (en) | High-efficiency cutting and grinding wheel, preserving shape | |
| CN102528677B (en) | High-efficiency cutting grinding wheel | |
| CN107597284A (en) | A kind of simplification, the rotating drivetrain reconfigured and its interior set cooling water channel | |
| JP2007015041A (en) | Rotating tool and machine tool | |
| CN202240795U (en) | Sphere grinding machine grinding head main shaft assembly having a hollow cooling and flushing structure | |
| KR200404052Y1 (en) | Spindle of the centerless grinder | |
| CN206185159U (en) | A cantilever type tool bit for high energy supersound metal processing system | |
| CN201175845Y (en) | Chamfering machine | |
| JP2857061B2 (en) | Spindle device using hydrodynamic bearing | |
| CN216177219U (en) | Wear-resistant metal band sawing machine saw wheel | |
| JP2004330384A (en) | Rotary main shaft device and working device |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C06 | Publication | ||
| PB01 | Publication | ||
| C10 | Entry into substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20120704 Termination date: 20210613 |