GB789242A - Improvements relating to the cutting of involute gears - Google Patents
Improvements relating to the cutting of involute gearsInfo
- Publication number
- GB789242A GB789242A GB2172755A GB2172755A GB789242A GB 789242 A GB789242 A GB 789242A GB 2172755 A GB2172755 A GB 2172755A GB 2172755 A GB2172755 A GB 2172755A GB 789242 A GB789242 A GB 789242A
- Authority
- GB
- United Kingdom
- Prior art keywords
- nut
- carriage
- indicator
- cutting
- indicators
- 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
- B23—MACHINE TOOLS; METAL-WORKING NOT OTHERWISE PROVIDED FOR
- B23F—MAKING GEARS OR TOOTHED RACKS
- B23F5/00—Making straight gear teeth involving moving a tool relatively to a workpiece with a rolling-off or an enveloping motion with respect to the gear teeth to be made
- B23F5/20—Making straight gear teeth involving moving a tool relatively to a workpiece with a rolling-off or an enveloping motion with respect to the gear teeth to be made by milling
- B23F5/22—Making straight gear teeth involving moving a tool relatively to a workpiece with a rolling-off or an enveloping motion with respect to the gear teeth to be made by milling the tool being a hob for making spur gears
Landscapes
- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Gear Processing (AREA)
Abstract
789,242. Gear-cutting. ASSOCIATED ELECTRICAL INDUSTRIES, Ltd. July 16, 1956 [July 27, 1955], No. 21727/55. Class 83 (3). Apparatus for cutting involute helical gears comprises means 3 which rotates a blank 1 and is geared to a lead-screw 6, a cutter 8 on a carriage 7 having a split-nut engaging the screw, means for engaging and disengaging the nut, and indicating-means 10 to ensure correct engagement between the nut and the leadscrew. The carriage 7 carries a slide 9 on which is adjustably mounted a profiled cutter or a pair of flat-faced cutters 8 which operate on opposite sides of a tooth. In operation, with the work rotating continuously, the carriage 7 is traversed upwardly by engaging the split-nut when an indicator on the disc 10 driven by the screw co-incides with an indicator 11 fixed on the carriage. At the end of a stroke the cutters are retracted, the split-nut is disengaged, and the carriage 7 is returned by a rack-and-pinion or hydraulic ram. A second traverse is initiated when the indicator 10 is again in its zero-position. To ensure a predetermined cutting- schedule, and complete the cutting of a gear having 363 teeth in ten revolutions thereof, the indicator 10 may drive another indicator at onetenth its speed and the nut then be engaged when both indicators are zero. The indicators may operate electrical or hydraulic circuits to actuate the nut and the cutter-slides, the contacts between the indicators 10, 11 being slightly offset from their theoretical position to allow for the time-actuation of the nut.
Priority Applications (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
GB2172755A GB789242A (en) | 1955-07-27 | 1955-07-27 | Improvements relating to the cutting of involute gears |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
GB2172755A GB789242A (en) | 1955-07-27 | 1955-07-27 | Improvements relating to the cutting of involute gears |
Publications (1)
Publication Number | Publication Date |
---|---|
GB789242A true GB789242A (en) | 1958-01-15 |
Family
ID=10167819
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
GB2172755A Expired GB789242A (en) | 1955-07-27 | 1955-07-27 | Improvements relating to the cutting of involute gears |
Country Status (1)
Country | Link |
---|---|
GB (1) | GB789242A (en) |
Cited By (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
DE10243114A1 (en) * | 2002-09-17 | 2004-03-25 | Höfler Maschinenbau GmbH | Method for creation of helical gear, creating inclined gaps on mantle of cylidrical element in specific order in relation to speed of rotation |
-
1955
- 1955-07-27 GB GB2172755A patent/GB789242A/en not_active Expired
Cited By (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
DE10243114A1 (en) * | 2002-09-17 | 2004-03-25 | Höfler Maschinenbau GmbH | Method for creation of helical gear, creating inclined gaps on mantle of cylidrical element in specific order in relation to speed of rotation |
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