GB437365A - Improvements in or relating to gear cutters and sharpening apparatus therefor - Google Patents
Improvements in or relating to gear cutters and sharpening apparatus thereforInfo
- Publication number
- GB437365A GB437365A GB990734A GB990734A GB437365A GB 437365 A GB437365 A GB 437365A GB 990734 A GB990734 A GB 990734A GB 990734 A GB990734 A GB 990734A GB 437365 A GB437365 A GB 437365A
- Authority
- GB
- United Kingdom
- Prior art keywords
- plate
- grinding
- work
- cutter
- roller
- 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
- B23F21/00—Tools specially adapted for use in machines for manufacturing gear teeth
- B23F21/04—Planing or slotting tools
- B23F21/10—Gear-shaper cutters having a shape similar to a spur wheel or part thereof
-
- 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
- B24B3/34—Sharpening cutting edges, e.g. of tools; Accessories therefor, e.g. for holding the tools of turning or planing tools or tool bits, e.g. gear cutters
- B24B3/346—Sharpening cutting edges, e.g. of tools; Accessories therefor, e.g. for holding the tools of turning or planing tools or tool bits, e.g. gear cutters of gear shaper cutter
Landscapes
- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Finish Polishing, Edge Sharpening, And Grinding By Specific Grinding Devices (AREA)
Abstract
437,365. Grinding gear-cutting tools. McLEOD, R. J., c/o Power Plant Co., West Drayton, Middlesex. March 29, 1934, No. 9907. [Class 60] [See also Group XXII] In a helically-toothed pinion cutter 11 for cutting gears, the teeth are ground with a hollow face 15 to provide a cutting-edge on the " obtuse " edge 13 and ground with a bevel on the " acute " edge 14 in such a way that both cutting edges have correct cutting angles and lie in a plane at right angles to the cutter axis.' The projection beyond the cutting-edges of the edge 16 lying in the original end face of the cutter is thus kept small so that no interference occurs when herring-bone teeth are cut. For grinding the cutter, the base plate 20 of a grinding-machine attachment carries a slide 27, Fig. 3, operated by a pivoted lever 28 in a direction parallel to the spindle of the grinding- wheel 22. A plate 47 is pivoted to the slide on a pin 23 and its inclination relatively to the slide is adjustable by screws 48, 49. The carrier plate carries a rotatable work plate 32, on which the cutter is mounted concentrically with the rotational axis 31. The cutter is indexed by means of a pivoted arm 33 carrying a conical roller 35. The base plate is fitted with side grooves 36, 37, one of which carries a bracket 39 fitted with an adjustable eye block 41 which receives a rod 42 secured to the work plate. In operation, as the slide 26 is traversed to move the work beneath the grinding wheel, the rod 42 imparts a rotation to the work plate which is governed by a radius of varying length thus causing the tooth 12 to follow relatively to the grinding wheel, an approximately involute path. The inclination of the plate 47 causes gradual deepening of the hollow face from tip to root. For grinding the acute edges, the bracket 39 is moved over to the slot 37, and the work reset by means of the roller 35 and the operation repeated. In a modification, Fig. 4, the base plate 50 carries a slide 51 reciprocated by a lever 52 or automatically and carrying a plate 54 pivoted at 53 and adjustable by a screw 55. The cutter is mounted with an index plate and roller 60 on a pin 57 carried by the plate 54. A spring stop 63 secures the work in indexed positions. Supports 65 pivoted on either side of the plate 54 are tilted by screws 67 correspondingly to the plate 54 and either support may carry a plane control plate 68 engaging the roller 60. In this form, as the slide 51 is reciprocated the roller 60 rolls on the control plate to impart the required angular movement to the work. After grinding the obtuse edges, the control plate is placed on the opposite side of the roller 60 for grinding the acute edges. The usual lateral and vertical adjustments for the grinding wheel may be provided. In some cases a spherical or other curved-edge grinding-wheel may be located as shown in Fig. 8. The acute edges may also be ground by a wheel located as in Fig. 11 or by the peripheral surface of such a wheel. A method of calculating the angular movement to be imparted to the work by the rod 42 or roller 60 is described in the Specification.
Priority Applications (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
GB990734A GB437365A (en) | 1934-03-29 | 1934-03-29 | Improvements in or relating to gear cutters and sharpening apparatus therefor |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
GB990734A GB437365A (en) | 1934-03-29 | 1934-03-29 | Improvements in or relating to gear cutters and sharpening apparatus therefor |
Publications (1)
Publication Number | Publication Date |
---|---|
GB437365A true GB437365A (en) | 1935-10-29 |
Family
ID=9880993
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
GB990734A Expired GB437365A (en) | 1934-03-29 | 1934-03-29 | Improvements in or relating to gear cutters and sharpening apparatus therefor |
Country Status (1)
Country | Link |
---|---|
GB (1) | GB437365A (en) |
Cited By (3)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JP2014039971A (en) * | 2012-08-21 | 2014-03-06 | Aisin Seiki Co Ltd | Cutter for skiving |
CN109333217A (en) * | 2018-11-01 | 2019-02-15 | 格特拉克(江西)传动系统有限公司 | Duplicate gear gear shaping burring processing unit (plant) |
CN114617624A (en) * | 2022-03-09 | 2022-06-14 | 四川大学华西医院 | Lifting reduction auxiliary device for femoral shaft fracture operation |
-
1934
- 1934-03-29 GB GB990734A patent/GB437365A/en not_active Expired
Cited By (5)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JP2014039971A (en) * | 2012-08-21 | 2014-03-06 | Aisin Seiki Co Ltd | Cutter for skiving |
CN109333217A (en) * | 2018-11-01 | 2019-02-15 | 格特拉克(江西)传动系统有限公司 | Duplicate gear gear shaping burring processing unit (plant) |
CN109333217B (en) * | 2018-11-01 | 2023-10-24 | 麦格纳动力总成(江西)有限公司 | Machining device for gear shaping and deburring of duplex gear |
CN114617624A (en) * | 2022-03-09 | 2022-06-14 | 四川大学华西医院 | Lifting reduction auxiliary device for femoral shaft fracture operation |
CN114617624B (en) * | 2022-03-09 | 2023-05-23 | 四川大学华西医院 | Lifting and resetting auxiliary device for femoral shaft fracture operation |
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