GB1375490A - - Google Patents
Info
- Publication number
- GB1375490A GB1375490A GB1244872A GB1244872A GB1375490A GB 1375490 A GB1375490 A GB 1375490A GB 1244872 A GB1244872 A GB 1244872A GB 1244872 A GB1244872 A GB 1244872A GB 1375490 A GB1375490 A GB 1375490A
- Authority
- GB
- United Kingdom
- Prior art keywords
- discs
- pressure
- space
- grinding
- coolant
- 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
Links
Classifications
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B24—GRINDING; POLISHING
- B24B—MACHINES, DEVICES, OR PROCESSES FOR GRINDING OR POLISHING; DRESSING OR CONDITIONING OF ABRADING SURFACES; FEEDING OF GRINDING, POLISHING, OR LAPPING AGENTS
- B24B55/00—Safety devices for grinding or polishing machines; Accessories fitted to grinding or polishing machines for keeping tools or parts of the machine in good working condition
- B24B55/02—Equipment for cooling the grinding surfaces, e.g. devices for feeding coolant
Landscapes
- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Grinding Of Cylindrical And Plane Surfaces (AREA)
Abstract
1375490 Grinding LITTON INDUSTRIES Inc 16 March 1972 [30 April 1971] 12448/72 Heading B3D A grinding machine comprises means 11L, 11R for supporting a pair of rotatable abrasive discs 14L, 14R, a duct for supplying liquid coolant, optionally having a gaseous component, to a space 30 between the discs 14L, 14R, and means 37 for maintaining the pressure between the discs 14L, 14R at least at the level of atmospheric pressure. Workpieces W may be introduced between the discs 14L, 14R by a carrier assembly 23, reciprocable between limit switches 1LS, 2LS by fluid pressure means 27. The discs 14L, 14R are rotatable in opposite directions by means of motors 16L, 16R, screw feed means 10L, 17L, 10R, 17R being provided for adjusting the axial disc spacing by sliding the respective disc supporting means 11L, 11R on a bed 12. Coolant is supplied through check valves 48, 49 and rotary unions 42 to axial passages through disc supporting shafts 13L, 13R. Compressed air is supplied through a filter 43 and metering valve 47 to an inlet 41 to one of the coolant supply passages, ensuring a pressure not less than atmospheric in the space 30. Before retraction of the discs 14L, 14R after grinding, a valve 38 may be actuated to by-pass the metering valve 47, providing an increased pressure in the space 30 to counteract the tendency for pressure reduction on retraction.
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| US13887171A | 1971-04-30 | 1971-04-30 |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| GB1375490A true GB1375490A (en) | 1974-11-27 |
Family
ID=22484037
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| GB1244872A Expired GB1375490A (en) | 1971-04-30 | 1972-03-16 |
Country Status (5)
| Country | Link |
|---|---|
| US (1) | US3774348A (en) |
| JP (1) | JPS5148717B1 (en) |
| CA (1) | CA950677A (en) |
| DE (1) | DE2204621C3 (en) |
| GB (1) | GB1375490A (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107309726A (en) * | 2017-08-14 | 2017-11-03 | 海盐孚邦机械有限公司 | A kind of plunger bushing is produced with semi-automatic end face Plane surface grinding machine |
| CN113927390A (en) * | 2021-12-16 | 2022-01-14 | 宁波明讯实业有限公司 | New energy automobile motor dabber burring equipment |
Families Citing this family (9)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US4358912A (en) * | 1980-05-27 | 1982-11-16 | Watanabe Shigeru | Grindstone clearance correcting device for spring grinding machine |
| US4685845A (en) * | 1985-09-30 | 1987-08-11 | James Emter | Guide pad resurfacing apparatus |
| US5121572A (en) * | 1990-11-06 | 1992-06-16 | Timesavers, Inc. | Opposed disc deburring system |
| JP2984263B1 (en) * | 1998-10-23 | 1999-11-29 | システム精工株式会社 | Polishing method and polishing apparatus |
| US6726525B1 (en) * | 1999-09-24 | 2004-04-27 | Shin-Estu Handotai Co., Ltd. | Method and device for grinding double sides of thin disk work |
| US6485357B1 (en) * | 2000-08-30 | 2002-11-26 | Divine Machinery Sales, Inc. | Dual-feed single column double-disk grinding machine |
| US20060019218A1 (en) * | 2004-07-20 | 2006-01-26 | Kuo Eric E | Combined interproximal reduction (IPR) disc/measurement tool |
| JP2007152499A (en) * | 2005-12-06 | 2007-06-21 | Fujikoshi Mach Corp | Work polishing method |
| CN115256114A (en) * | 2022-06-02 | 2022-11-01 | 苏州方升电子科技有限公司 | Duplex position is convenient for plastic disc border equipment of adjustment |
Family Cites Families (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US2089040A (en) * | 1935-07-05 | 1937-08-03 | Gardner Machine Co | Grinding machine and method of grinding |
| US2560944A (en) * | 1948-07-08 | 1951-07-17 | Oliver Instr Company | Cooling system and apparatus for abrasive wheels |
| US2658316A (en) * | 1950-09-08 | 1953-11-10 | Joseph R Davies | Method and apparatus for cooling buffs and polishing wheels |
| US3063203A (en) * | 1959-08-27 | 1962-11-13 | Besly Welles Corp | Grinder |
| US3503155A (en) * | 1967-09-15 | 1970-03-31 | Landis Tool Co | Disc grinder loader and carrier assembly |
| US3653160A (en) * | 1969-04-23 | 1972-04-04 | Ind Micronics Inc | Lapping machine and method |
-
1971
- 1971-04-30 US US00138871A patent/US3774348A/en not_active Expired - Lifetime
-
1972
- 1972-01-21 CA CA132,973,A patent/CA950677A/en not_active Expired
- 1972-02-01 DE DE2204621A patent/DE2204621C3/en not_active Expired
- 1972-03-16 GB GB1244872A patent/GB1375490A/en not_active Expired
- 1972-05-01 JP JP47042664A patent/JPS5148717B1/ja active Pending
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107309726A (en) * | 2017-08-14 | 2017-11-03 | 海盐孚邦机械有限公司 | A kind of plunger bushing is produced with semi-automatic end face Plane surface grinding machine |
| CN113927390A (en) * | 2021-12-16 | 2022-01-14 | 宁波明讯实业有限公司 | New energy automobile motor dabber burring equipment |
| CN113927390B (en) * | 2021-12-16 | 2022-04-29 | 宁波明讯实业有限公司 | New energy automobile motor dabber burring equipment |
Also Published As
| Publication number | Publication date |
|---|---|
| DE2204621A1 (en) | 1972-11-16 |
| DE2204621B2 (en) | 1974-05-09 |
| CA950677A (en) | 1974-07-09 |
| JPS5148717B1 (en) | 1976-12-22 |
| DE2204621C3 (en) | 1974-12-05 |
| US3774348A (en) | 1973-11-27 |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| PS | Patent sealed [section 19, patents act 1949] | ||
| PE20 | Patent expired after termination of 20 years |