GB696417A - Improvements in or relating to methods of machining by milling, grinding or the likeand apparatus therefor - Google Patents
Improvements in or relating to methods of machining by milling, grinding or the likeand apparatus thereforInfo
- Publication number
- GB696417A GB696417A GB78050A GB78050A GB696417A GB 696417 A GB696417 A GB 696417A GB 78050 A GB78050 A GB 78050A GB 78050 A GB78050 A GB 78050A GB 696417 A GB696417 A GB 696417A
- Authority
- GB
- United Kingdom
- Prior art keywords
- traverse
- slide
- blade
- inclined surfaces
- milling
- 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
- B23C—MILLING
- B23C3/00—Milling particular work; Special milling operations; Machines therefor
- B23C3/16—Working surfaces curved in two directions
- B23C3/18—Working surfaces curved in two directions for shaping screw-propellers, turbine blades, or impellers
Landscapes
- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Milling Processes (AREA)
Abstract
696,417. Copy milling. ROLLS-ROYCE, Ltd. Jan. 1, 1951 [Jan. 11, 1950], No. 780/50. Class 83 (iii). [Also in Group XXIII] In a copy-milling or copy-grinding machine, for turbine or compressor blades 29 with inclined surfaces 29c on either or both the root or tip platforms 29a, the blade and the tool 32 are traversed relative to each other by causing angular movement of the blade or tool about an axis 20 which is contained in the plane of the tool and does not pass through the blade. If the platforms have inclined surfaces at one end only, the axis 20 lies in the plane of the inclined surface, but if both platforms have inclined surfaces, it lies on the intersection of the planes of these surfaces, so that the whole of the blade profile, including the parts near the inclined surfaces, can be machined at one setting. A slide 12 is vertically movable in the machine frame 10 and carries another slide 13 which is horizontally reciprocable by an electric motor 18 and crank drive 19. The work-carrier or carriers 11 and the carrier 22 for the pattern 30 are oscillated on vertical pivots 20, 23 on the slide 13 by a motor 26, crank 25 and link 21. A follower 31 is mounted for limited vertical movement in the frame so that it controls vertical movement of the slide 12 in the opposite direction by an electric motor 15 and skew drive 16 or by hydraulic or mechanical means. The angular traverse, indicated by arrows 35 in Fig. 3, may be rapid and the linear traverse (arrows 36), slow so that the cuts are substantially circular arcs, or the angular traverse may be slow and the linear traverse rapid, so that the cuts are substantially along radial lines from the axis 20. The linear traverse and the copying movement may be applied to the tools instead of to the blades and an equivalent to the linear traverse may be obtained by rotating the blades and the pattern about corresponding axes remote from and parallel to their spanwise axes.
Priority Applications (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
GB78050A GB696417A (en) | 1950-01-11 | 1950-01-11 | Improvements in or relating to methods of machining by milling, grinding or the likeand apparatus therefor |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
GB78050A GB696417A (en) | 1950-01-11 | 1950-01-11 | Improvements in or relating to methods of machining by milling, grinding or the likeand apparatus therefor |
Publications (1)
Publication Number | Publication Date |
---|---|
GB696417A true GB696417A (en) | 1953-09-02 |
Family
ID=9710379
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
GB78050A Expired GB696417A (en) | 1950-01-11 | 1950-01-11 | Improvements in or relating to methods of machining by milling, grinding or the likeand apparatus therefor |
Country Status (1)
Country | Link |
---|---|
GB (1) | GB696417A (en) |
Cited By (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US2830501A (en) * | 1953-12-15 | 1958-04-15 | Vickers Armstrongs Ltd | Machine for use in the manufacture of profile templates |
-
1950
- 1950-01-11 GB GB78050A patent/GB696417A/en not_active Expired
Cited By (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US2830501A (en) * | 1953-12-15 | 1958-04-15 | Vickers Armstrongs Ltd | Machine for use in the manufacture of profile templates |
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