GB191204693A - Improvements in Gear Cutting Machines. - Google Patents

Improvements in Gear Cutting Machines.

Info

Publication number
GB191204693A
GB191204693A GB191204693DA GB191204693A GB 191204693 A GB191204693 A GB 191204693A GB 191204693D A GB191204693D A GB 191204693DA GB 191204693 A GB191204693 A GB 191204693A
Authority
GB
United Kingdom
Prior art keywords
hob
gear
hobs
teeth
driven
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
Application number
Inventor
Thomas Fawcus
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Individual
Original Assignee
Individual
Priority date (The priority date 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 date listed.)
Filing date
Publication date
Application filed by Individual filed Critical Individual
Application granted granted Critical
Publication of GB191204693A publication Critical patent/GB191204693A/en
Expired legal-status Critical Current

Links

Classifications

    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B23—MACHINE TOOLS; METAL-WORKING NOT OTHERWISE PROVIDED FOR
    • B23F—MAKING GEARS OR TOOTHED RACKS
    • B23F7/00—Making herringbone gear teeth
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B23—MACHINE TOOLS; METAL-WORKING NOT OTHERWISE PROVIDED FOR
    • B23F—MAKING GEARS OR TOOTHED RACKS
    • B23F5/00—Making straight gear teeth involving moving a tool relatively to a workpiece with a rolling-off or an enveloping motion with respect to the gear teeth to be made
    • B23F5/20—Making straight gear teeth involving moving a tool relatively to a workpiece with a rolling-off or an enveloping motion with respect to the gear teeth to be made by milling
    • B23F5/205—Making straight gear teeth involving moving a tool relatively to a workpiece with a rolling-off or an enveloping motion with respect to the gear teeth to be made by milling with plural tools
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B23—MACHINE TOOLS; METAL-WORKING NOT OTHERWISE PROVIDED FOR
    • B23F—MAKING GEARS OR TOOTHED RACKS
    • B23F5/00—Making straight gear teeth involving moving a tool relatively to a workpiece with a rolling-off or an enveloping motion with respect to the gear teeth to be made
    • B23F5/20—Making straight gear teeth involving moving a tool relatively to a workpiece with a rolling-off or an enveloping motion with respect to the gear teeth to be made by milling
    • B23F5/22—Making straight gear teeth involving moving a tool relatively to a workpiece with a rolling-off or an enveloping motion with respect to the gear teeth to be made by milling the tool being a hob for making spur gears

Abstract

4693. Fawcus, T. Feb. 24. Gear-cutting.-A hobbing-machine for cutting double helical gears comprises a rotary blanksupporting table and two hobs mounted on one slide to be fed together in the same direction, the one cutting the teeth at one side of the peripheral centre and the other at the other side thereof, the hobs being driven at different speeds to enable them to cut teeth at rcverse angles to the axis of the blank. The blank A on the rotary table 3 is driven by shafts 39, and the cutters 7, 8 on the slide 11 are driven by shafts 18 on either side of the machine gearing with a main driver 23 through differential gearing 26. A shipper rod 67 first connects the table 5 to the driver till the required depth of cut is attained, and then puts the slide feed screw 14 into gear and connects the worms 28 with the external threads 27 of the differential gear thus causing the hob 7 to rotate slightly slower and the hob 8 to rotate slightly faster than its normal, to produce the proper angularity of the teeth as the hob slide 11 is fed downwards. After the hobs 7, 8 have operated, a hob on the shaft 80 may be used to cut out the apexes of the teeth and form clearance spaces as described in Specification 29,461/10, [Class 80 (i), Gearing, Belt &c.]. The differential motion of the hobs may be produced by mounting each to be driven by a shaft 83 with a helical keyway 84 engaging the gear 85 driving the hob 82, the downward feed of the gear 85 causing an increase or retardation of its speed in accordance with the direction and pitch of the helical keyway. Change gears 88, 89 may be employed.
GB191204693D 1912-02-24 1912-02-24 Improvements in Gear Cutting Machines. Expired GB191204693A (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
GB191204693T 1912-02-24

Publications (1)

Publication Number Publication Date
GB191204693A true GB191204693A (en) 1912-10-31

Family

ID=32367692

Family Applications (1)

Application Number Title Priority Date Filing Date
GB191204693D Expired GB191204693A (en) 1912-02-24 1912-02-24 Improvements in Gear Cutting Machines.

Country Status (1)

Country Link
GB (1) GB191204693A (en)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN103920936A (en) * 2014-04-22 2014-07-16 大连交通大学 Large gear adhesive belt tooth grinding machine

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN103920936A (en) * 2014-04-22 2014-07-16 大连交通大学 Large gear adhesive belt tooth grinding machine
CN103920936B (en) * 2014-04-22 2017-01-25 大连交通大学 Large gear adhesive belt tooth grinding machine

Similar Documents

Publication Publication Date Title
GB734127A (en) Improvements in toothed gears and gear drives and in the production of such gears
US4222691A (en) Method for machining the screw of a compression or expansion machine and a device for the application of said method
GB191204693A (en) Improvements in Gear Cutting Machines.
US4435110A (en) Drive train for gear hobbing machine
US2226038A (en) Steering gear
US3007346A (en) Compensating device for table drives in gear-machining machines
US3453931A (en) Drive mechanism for a machine tool
US2466512A (en) Gear hobbing or like machine provided with rotary worktable
GB1235296A (en) Gear cutting machine
US806075A (en) Spiral-gear-cutting machine.
US3107579A (en) Hobbing machine
US3190180A (en) Selective gearing arrangement for hobbing gears and milling threads
US2406009A (en) Machine for cutting curved, selfconjugate indentations
US1049350A (en) Gear-cutting machine.
US1384558A (en) Gear-cutting machine
GB640641A (en) Improved process and machine for manufacturing bevel gears with curved teeth
US1202074A (en) Method of generating the teeth of helical gear-wheels.
US1806359A (en) Thread milling machine
US2545151A (en) Gear-hobbing machine
US1323382A (en) Machine for generating gear teeth,
US1339223A (en) Means applicable for use in milling screw-threads
GB580747A (en) Improvements in or relating to machines for cutting worm elements
US1252482A (en) Gear-cutting machine.
US3192830A (en) Machine for the manufacture of gears
GB215390A (en) Improvements in or relating to gear cutting machines