GB512293A - Improvements in or relating to apparatus for controlling the revolution of chuck-driving spindle in head-stock for high speed lathe - Google Patents
Improvements in or relating to apparatus for controlling the revolution of chuck-driving spindle in head-stock for high speed latheInfo
- Publication number
- GB512293A GB512293A GB2898538A GB2898538A GB512293A GB 512293 A GB512293 A GB 512293A GB 2898538 A GB2898538 A GB 2898538A GB 2898538 A GB2898538 A GB 2898538A GB 512293 A GB512293 A GB 512293A
- Authority
- GB
- United Kingdom
- Prior art keywords
- gear
- spindle
- splined
- engage
- headstock
- 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
- B23Q—DETAILS, COMPONENTS, OR ACCESSORIES FOR MACHINE TOOLS, e.g. ARRANGEMENTS FOR COPYING OR CONTROLLING; MACHINE TOOLS IN GENERAL CHARACTERISED BY THE CONSTRUCTION OF PARTICULAR DETAILS OR COMPONENTS; COMBINATIONS OR ASSOCIATIONS OF METAL-WORKING MACHINES, NOT DIRECTED TO A PARTICULAR RESULT
- B23Q5/00—Driving or feeding mechanisms; Control arrangements therefor
- B23Q5/02—Driving main working members
- B23Q5/04—Driving main working members rotary shafts, e.g. working-spindles
- B23Q5/20—Adjusting or stopping working-spindles in a predetermined position
Landscapes
- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Turning (AREA)
Abstract
512,293. Turning. NAGASAWA, K. Oct. 6, 1938, No. 28985. [Class 83 (iii)] In a lathe headstock wherein a conical friction wheel splined on the spindle is engageable either with a stepped cone pulley or a front gear to obtain different sets of speeds, means are provided for locking the front gear against rotation so that rotation of the spindle may be stopped by engaging the friction wheel therewith. In one form a stepped pulley 2 is loosely mounted on the spindle 1 and a double conical friction member 5 is splined thereon and is movable by a hand lever 9 so as to engage either a friction surface 6 on the pulley or a friction surface 6<1> on a loose front gear 3. The gear 3 may be driven from the spindle through the usual back gear shaft 15 or may be held stationary by a pin 10 in the headstock 8 engaging one of a number of recesses 11 therein. With the gear 3 locked, axial displacement of the member 5 will stop rotation of the spindle quickly and smoothly and with the back gear in operation axial movement of the member 5 will give alternative high and low speeds to the spindle. In a modification the gear 14 is keyed to a rotatably mounted shaft 15 and the gear 13 is splined thereon and movable by a hand lever so as either to engage the gear 12 or to engage dogs on a fixed part of the headstock in order to lock the gear 3 against rotation.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| GB2898538A GB512293A (en) | 1938-10-06 | 1938-10-06 | Improvements in or relating to apparatus for controlling the revolution of chuck-driving spindle in head-stock for high speed lathe |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| GB2898538A GB512293A (en) | 1938-10-06 | 1938-10-06 | Improvements in or relating to apparatus for controlling the revolution of chuck-driving spindle in head-stock for high speed lathe |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| GB512293A true GB512293A (en) | 1939-08-31 |
Family
ID=10284398
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| GB2898538A Expired GB512293A (en) | 1938-10-06 | 1938-10-06 | Improvements in or relating to apparatus for controlling the revolution of chuck-driving spindle in head-stock for high speed lathe |
Country Status (1)
| Country | Link |
|---|---|
| GB (1) | GB512293A (en) |
-
1938
- 1938-10-06 GB GB2898538A patent/GB512293A/en not_active Expired
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