GB901741A - Improvements in or relating to two-wheel lapping or grinding machines - Google Patents
Improvements in or relating to two-wheel lapping or grinding machinesInfo
- Publication number
- GB901741A GB901741A GB4384659A GB4384659A GB901741A GB 901741 A GB901741 A GB 901741A GB 4384659 A GB4384659 A GB 4384659A GB 4384659 A GB4384659 A GB 4384659A GB 901741 A GB901741 A GB 901741A
- Authority
- GB
- United Kingdom
- Prior art keywords
- wheel
- gear
- driven
- rotation
- lap
- 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
- B24B37/00—Lapping machines or devices; Accessories
- B24B37/04—Lapping machines or devices; Accessories designed for working plane surfaces
- B24B37/07—Lapping machines or devices; Accessories designed for working plane surfaces characterised by the movement of the work or lapping tool
- B24B37/08—Lapping machines or devices; Accessories designed for working plane surfaces characterised by the movement of the work or lapping tool for double side lapping
Landscapes
- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Finish Polishing, Edge Sharpening, And Grinding By Specific Grinding Devices (AREA)
Abstract
901,741. Grinding. BOVENSIEPEN, H. F., [trading as WOLTERS, P. [Firm of]]. Dec. 24, 1959, No. 43846/59. Class 60. A two-wheel lapping or grinding machine has two oppositely-rotating secondary drives driven from a single source, one wheel being connected to one of the secondary drives so as to be driven positively and constantly in one rotary direction, and a device being provided for selectively connecting the drive of the other wheel to either of the secondary drives or to a fixed part of the machine housing or disengaging the drive of said other wheel to allow free rotation thereof. The upper lap wheel 15 is mounted for rotation in an upper housing 13 secured to a sleeve 28 which pivots round a pillar 14 mounted rigidly upon the lower housing 1 in which the lower lap wheel 2 is mounted for rotation. A motor 8 drives, through belt 7 and worm gearing 6, a shaft 31 carrying a first gear 9 driving a gear 12 and a second gear 10 driving, through idler 34, a gear 11. The lower lap wheel 2 is driven, through belt 3, by the gear 12. The upper lap wheel 15 is connected by belt 16 to a pulley 17. A shaft 18 movable axially by manual, mechanical or other means has external splines 19, 20, 21; internal splines are provided in the hub of the pulley 17, in the head 22 of pillar 14 and in the gears 11, 12. The shaft has five positions, viz.: R: upper wheel 15 driven by gear 12 in same direction as lower wheel 2, L: upper wheel 15 driven by gear 11 in opposite direction to lower wheel 2, B: splines 20, 22 engaged, upper wheel 15 held against rotation, S and S<SP>1</SP>, upper wheel 15 not driven, but free to be rotated frictionally by the work in same direction as the lower wheel 2.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| GB4384659A GB901741A (en) | 1959-12-24 | 1959-12-24 | Improvements in or relating to two-wheel lapping or grinding machines |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| GB4384659A GB901741A (en) | 1959-12-24 | 1959-12-24 | Improvements in or relating to two-wheel lapping or grinding machines |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| GB901741A true GB901741A (en) | 1962-07-25 |
Family
ID=10430563
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| GB4384659A Expired GB901741A (en) | 1959-12-24 | 1959-12-24 | Improvements in or relating to two-wheel lapping or grinding machines |
Country Status (1)
| Country | Link |
|---|---|
| GB (1) | GB901741A (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106737127A (en) * | 2016-12-30 | 2017-05-31 | 浙江工业大学 | A kind of automatic irrational number rotating ratio polished machine |
| CN109176300A (en) * | 2018-09-21 | 2019-01-11 | 广州半导体材料研究所 | A kind of single motor drive system for silicon wafer twin grinder grinding mechanism |
-
1959
- 1959-12-24 GB GB4384659A patent/GB901741A/en not_active Expired
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106737127A (en) * | 2016-12-30 | 2017-05-31 | 浙江工业大学 | A kind of automatic irrational number rotating ratio polished machine |
| CN106737127B (en) * | 2016-12-30 | 2019-11-12 | 浙江工业大学 | A kind of automatic irrational number rotating ratio polished machine |
| CN109176300A (en) * | 2018-09-21 | 2019-01-11 | 广州半导体材料研究所 | A kind of single motor drive system for silicon wafer twin grinder grinding mechanism |
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