GB372712A - Improvements in and relating to gear cutting machines - Google Patents
Improvements in and relating to gear cutting machinesInfo
- Publication number
- GB372712A GB372712A GB1800/32A GB180032A GB372712A GB 372712 A GB372712 A GB 372712A GB 1800/32 A GB1800/32 A GB 1800/32A GB 180032 A GB180032 A GB 180032A GB 372712 A GB372712 A GB 372712A
- Authority
- GB
- United Kingdom
- Prior art keywords
- shaft
- cutter
- attachment
- housing
- cam
- 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
- B23F23/00—Accessories or equipment combined with or arranged in, or specially designed to form part of, gear-cutting machines
- B23F23/12—Other devices, e.g. tool holders; Checking devices for controlling workpieces in machines for manufacturing gear teeth
- B23F23/1237—Tool holders
- B23F23/1287—Pinion shaper cutter holders
Landscapes
- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Transmission Devices (AREA)
Abstract
372,712. Gear-cutting. AEPPLI, A., 219, Hardstrasse, Zurich, Switzerland. Jan. 20, 1932, No. 1800. Convention date, Jan. 20, 1931. [Class 83 (iii).] In an attachment 2 designed to render a gear-cutting machine, such as that described in Specification 109,256, [Class 83 (iii), Metals, Cutting], in which external gears are generated by means of a reciprocating rack-cutter 1a, applicable to the generating of internal gears 10, the rack-tool is replaced by a pinion-cutter 7 which is rotated in unison with the blank so that its pitch circle rolls on the blank pitch circle. The attachment is adjustably secured by screws to the ram 1 of the machine and has bearings for a shaft 3 on which is pivoted a housing 4 provided with bearings for a vertical shaft 6 carrying the pinion-cutter. The cutter position during operation is determined by a machined surface 5 on the housing which engages a corresponding surface on the attachment body. The work-table 11 is normal!y rotated from a shaft 16 through bevel gearing 15, change-wheels 14, shaft 36, and worm gearing 13. The pinion-cutter is driven from the shaft 16 through bevel gearing 19, vertical shaft 17, bevel gearing 18, shaft 3, and worm gearing 9. In working normally with a racktooth cutter the blank table is moved laterally in unison with its rotation by means of a shaft 22. When the attachment is used this lateral movement is not required and the gear 21 engaging one of the change-wheels 14 is accordingly disconnected. The generating movement is effected during the return stroke of the ram and in order to remove the tools from the work during the return the machine frame is fitted with friction-blocks 44 engaging a rod 26 connected by an arm 25 to a cam shaft journalled in the body of the attachment and carrying a cam 23. During the working stroke the arm 25 is dragged upwardly and forces the cam 23 against a projection on the housing so that its stop surface engages the surface of the attachment but during the return movement the cam engages a projection 42 on the housing 4 thus lifting the housing and the cutter away from the work.
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| DE372712X | 1931-01-20 |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| GB372712A true GB372712A (en) | 1932-05-12 |
Family
ID=6333751
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| GB1800/32A Expired GB372712A (en) | 1931-01-20 | 1932-01-20 | Improvements in and relating to gear cutting machines |
Country Status (1)
| Country | Link |
|---|---|
| GB (1) | GB372712A (en) |
-
1932
- 1932-01-20 GB GB1800/32A patent/GB372712A/en not_active Expired
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