GB1030532A - An improvement in or relating to hobbing machines - Google Patents

An improvement in or relating to hobbing machines

Info

Publication number
GB1030532A
GB1030532A GB522264A GB522264A GB1030532A GB 1030532 A GB1030532 A GB 1030532A GB 522264 A GB522264 A GB 522264A GB 522264 A GB522264 A GB 522264A GB 1030532 A GB1030532 A GB 1030532A
Authority
GB
United Kingdom
Prior art keywords
gears
motor
hob
dog
clutch
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
GB522264A
Inventor
Brian Lee
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.)
CHURCHILL GEAR MACHINES Ltd
Original Assignee
CHURCHILL GEAR MACHINES Ltd
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 CHURCHILL GEAR MACHINES Ltd filed Critical CHURCHILL GEAR MACHINES Ltd
Priority to GB522264A priority Critical patent/GB1030532A/en
Publication of GB1030532A publication Critical patent/GB1030532A/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
    • 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

Landscapes

  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Gear Processing (AREA)

Abstract

1,030,532. Gear-cutting. CHURCHILL GEAR MACHINES Ltd. March 3, 1965 [Feb. 7, 1964], No. 5222/64. Heading B3K. A gear hobbing machine for spur gears or worm wheels comprises an hydraulic pump which can either supply a motor 22 driving the hob and the work or a motor 33 for a rapid return of the hob-slide, and a pump to supply a third motor 40 for a slow feed of the slide. The pumps are driven by a common electric motor. The cutter head 105 can be fed to a depth gauged by a stop 107, which acts jointly with a switch 108 on the head engaging a dog in the bed. A further dog 111 actuates a switch 110 before full depth is reached and a dog 113 actuates a switch 112 when the head is moved away. The manually controlled variable-speed motor 22 drives the hob through gears 133, 137, 143 and 145 and the work through differential gear 147, gears 150, index change gears 155 and worm gearing 161. The reversible motor 33 drives a screw 116 through a shaft 162, worm gearing 163, a sleeve 165, a dog-clutch 166 and a spindle 167. A tangential-feed screw 123 is rotated from the sleeve 165 by gears 168, 169, 170, a dog clutch 171, worm gearing 173, a sleeve 175 and gears 176. For hobbing helical gears, the rotation of the work is modified by a drive from the shaft 162 through bevel gears 179, change gears 182 and the differential 147. The reversible motor 40 drives the shaft 162 through an electromagnetic clutch 189 for upward or downward feed of the hob-slide at a speed set by a hand valve. The pump supplying the motor 40 also supplies pistons for feeding the head 105 and for setting a hob shift device 130 before each new cycle. It also supplies a spring-loaded piston for clamping and unclamping the work and an axially-movable centre. When worm-wheels are to be cut, the clutch 166 is disengaged and the clutch 171 engaged. The hob-shift device 130 is disengaged and the hobslide moved tangentially of the workpiece. The tangential slide, however, may be omitted.
GB522264A 1964-02-07 1964-02-07 An improvement in or relating to hobbing machines Expired GB1030532A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
GB522264A GB1030532A (en) 1964-02-07 1964-02-07 An improvement in or relating to hobbing machines

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
GB522264A GB1030532A (en) 1964-02-07 1964-02-07 An improvement in or relating to hobbing machines

Publications (1)

Publication Number Publication Date
GB1030532A true GB1030532A (en) 1966-05-25

Family

ID=9792010

Family Applications (1)

Application Number Title Priority Date Filing Date
GB522264A Expired GB1030532A (en) 1964-02-07 1964-02-07 An improvement in or relating to hobbing machines

Country Status (1)

Country Link
GB (1) GB1030532A (en)

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE2902761A1 (en) * 1979-01-25 1980-08-21 Exnii Metallorezh Stankov Numerically controlled gear teeth generator - has separate drive for tool and workpiece spindles with speed-setting planetary gearing
ITBO20090479A1 (en) * 2009-07-23 2011-01-24 Samp Spa Con Unico Socio GEAR MACHINE FOR PRODUCTION OF GEARS

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE2902761A1 (en) * 1979-01-25 1980-08-21 Exnii Metallorezh Stankov Numerically controlled gear teeth generator - has separate drive for tool and workpiece spindles with speed-setting planetary gearing
ITBO20090479A1 (en) * 2009-07-23 2011-01-24 Samp Spa Con Unico Socio GEAR MACHINE FOR PRODUCTION OF GEARS
WO2011010210A1 (en) * 2009-07-23 2011-01-27 Samp S.P.A. Con Unico Socio Machine for making gears

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