GB636463A - Apparatus for sharpening and grinding rotary cutting tools - Google Patents
Apparatus for sharpening and grinding rotary cutting toolsInfo
- Publication number
- GB636463A GB636463A GB2951846A GB2951846A GB636463A GB 636463 A GB636463 A GB 636463A GB 2951846 A GB2951846 A GB 2951846A GB 2951846 A GB2951846 A GB 2951846A GB 636463 A GB636463 A GB 636463A
- Authority
- GB
- United Kingdom
- Prior art keywords
- tool
- grinding
- cam
- pin
- cutting tools
- 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
- B24B3/00—Sharpening cutting edges, e.g. of tools; Accessories therefor, e.g. for holding the tools
- B24B3/24—Sharpening cutting edges, e.g. of tools; Accessories therefor, e.g. for holding the tools of drills
- B24B3/33—Sharpening cutting edges, e.g. of tools; Accessories therefor, e.g. for holding the tools of drills of drills for stone
Landscapes
- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Finish Polishing, Edge Sharpening, And Grinding By Specific Grinding Devices (AREA)
Abstract
636,463. Grinding twist-drills. ALLEMANN, H. Oct. 3, 1946, No. 29518. [Class 60] [Also in Group XXII] An apparatus for grinding rotary cutting tools, particularly single-lipped drills of half-round section, is provided with a cam member 4 interchangeably mounted on a tool-holder 6 and having two cam surfaces arranged to cooperate with a guide pin 5 selectively located in one of two seats 1<SP>11</SP> provided on a stationary cylinder element 1 in which the tool-holder 6 is slidably lodged. By this arrangement, axial movements are imparted to the tool when the toolholder is turned so that, in grinding with the pin in position to co-operate with one cam surface, the form of the front face 7<SP>1</SP> of the tool is produced, as shown in Figs. 5, 6 and 7, whereas, with the pin in position to co-operate with the other cam face, the breast surface 7<SP>11</SP> may be ground. As shown, a drill is provided with surface 19 formed as a section of the envelope of a cone and a surface 16 formed as a spiral. The peak of the tool is offset from the axis thereof, producing cutting edges 15, 151.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| GB2951846A GB636463A (en) | 1946-10-03 | 1946-10-03 | Apparatus for sharpening and grinding rotary cutting tools |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| GB2951846A GB636463A (en) | 1946-10-03 | 1946-10-03 | Apparatus for sharpening and grinding rotary cutting tools |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| GB636463A true GB636463A (en) | 1950-05-03 |
Family
ID=10292802
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| GB2951846A Expired GB636463A (en) | 1946-10-03 | 1946-10-03 | Apparatus for sharpening and grinding rotary cutting tools |
Country Status (1)
| Country | Link |
|---|---|
| GB (1) | GB636463A (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109807373A (en) * | 2017-11-22 | 2019-05-28 | 有晙精密工具有限公司 | Woodruff drill |
-
1946
- 1946-10-03 GB GB2951846A patent/GB636463A/en not_active Expired
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109807373A (en) * | 2017-11-22 | 2019-05-28 | 有晙精密工具有限公司 | Woodruff drill |
| CN109807373B (en) * | 2017-11-22 | 2020-08-25 | 有晙精密工具有限公司 | Semicircular drill bit |
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