GB599235A - An improvement in or relating to gear hobbing or like machines provided with rotary work tables - Google Patents
An improvement in or relating to gear hobbing or like machines provided with rotary work tablesInfo
- Publication number
- GB599235A GB599235A GB2868645A GB2868645A GB599235A GB 599235 A GB599235 A GB 599235A GB 2868645 A GB2868645 A GB 2868645A GB 2868645 A GB2868645 A GB 2868645A GB 599235 A GB599235 A GB 599235A
- Authority
- GB
- United Kingdom
- Prior art keywords
- worm
- work
- gear
- shaft
- wheel
- 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
- 230000004075 alteration Effects 0.000 abstract 1
- 230000000737 periodic Effects 0.000 abstract 1
- 230000002441 reversible Effects 0.000 abstract 1
Classifications
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B23—MACHINE TOOLS; METAL-WORKING NOT OTHERWISE PROVIDED FOR
- B23F—MAKING GEARS OR TOOTHED RACKS
- B23F23/00—Accessories or equipment combined with or arranged in, or specially designed to form part of, gear-cutting machines
- B23F23/10—Arrangements for compensating irregularities in drives or indexing mechanisms
-
- 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 Transmission (AREA)
- Testing Of Engines (AREA)
Abstract
599,235. Gear-cutting. BROWN & SONS (HUDDERSFIELD), Ltd., D.. SYKES, A., and TUPLTN, W. A. Oct. 30, 1945, No. 28686. [Class 83 (iii)] In a gear-cutting machine employing the creep method of distributing periodic errors arising in the work-table drive, the worm c driving the work-table worm-wheel b is reciprocated within predetermined limits in a circular path coaxial with the worm-wheel. The worm is mounted on a cradle d pivoted on the worktable shaft a<1> and engaging a projection j<5> on a nut j<4> in engagement with a screw-threaded portion j<3> of a shaft j rotated by a variablespeed reversible motor k. The amplitude and speed of reciprocation of the cradle d by the motor may be variable and the amplitude may be determined by limit switches. The alteration in speed of the work-table consequent on the change of position of the point of engagement of the worm and worm-wheel is compensated so that the rate of creep does not affect the relativespeeds of the hob h and the work-table by a gear i on the shaft j engaging teeth f<3> on the casing of a differential gear f connected to a universally-jointed shaft e<1> that drives the worm c.
Publications (1)
| Publication Number | Publication Date |
|---|---|
| GB599235A true GB599235A (en) | 1948-03-08 |
Family
ID=1741218
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| GB2868645A Expired GB599235A (en) | 1945-10-30 | An improvement in or relating to gear hobbing or like machines provided with rotary work tables |
Country Status (1)
| Country | Link |
|---|---|
| GB (1) | GB599235A (en) |
-
1945
- 1945-10-30 GB GB2868645A patent/GB599235A/en not_active Expired
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