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GB463227A - Improvements in lathe and like drivers - Google Patents

Improvements in lathe and like drivers

Info

Publication number
GB463227A
GB463227A GB16374/36A GB1637436A GB463227A GB 463227 A GB463227 A GB 463227A GB 16374/36 A GB16374/36 A GB 16374/36A GB 1637436 A GB1637436 A GB 1637436A GB 463227 A GB463227 A GB 463227A
Authority
GB
United Kingdom
Prior art keywords
clamping
dogs
levers
springs
work
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
GB16374/36A
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.)
Forkardt Deutschland GmbH
Original Assignee
Paul Forkardt GmbH and Co KG
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 Paul Forkardt GmbH and Co KG filed Critical Paul Forkardt GmbH and Co KG
Publication of GB463227A publication Critical patent/GB463227A/en
Expired legal-status Critical Current

Links

Classifications

    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B23—MACHINE TOOLS; METAL-WORKING NOT OTHERWISE PROVIDED FOR
    • B23B—TURNING; BORING
    • B23B31/00—Chucks; Expansion mandrels; Adaptations thereof for remote control
    • B23B31/02—Chucks
    • B23B31/10—Chucks characterised by the retaining or gripping devices or their immediate operating means
    • B23B31/12—Chucks with simultaneously-acting jaws, whether or not also individually adjustable
    • B23B31/1261—Chucks with simultaneously-acting jaws, whether or not also individually adjustable pivotally movable in a radial plane
    • B23B31/1284—Chucks with simultaneously-acting jaws, whether or not also individually adjustable pivotally movable in a radial plane with a centre
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B23—MACHINE TOOLS; METAL-WORKING NOT OTHERWISE PROVIDED FOR
    • B23B—TURNING; BORING
    • B23B31/00—Chucks; Expansion mandrels; Adaptations thereof for remote control
    • B23B31/02—Chucks
    • B23B31/10—Chucks characterised by the retaining or gripping devices or their immediate operating means
    • B23B31/12—Chucks with simultaneously-acting jaws, whether or not also individually adjustable
    • B23B31/1261—Chucks with simultaneously-acting jaws, whether or not also individually adjustable pivotally movable in a radial plane

Landscapes

  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Braking Arrangements (AREA)
  • Clamps And Clips (AREA)

Abstract

463,227. Lathe drivers. FORKARDT KOMMANDITGES., P. June 11, 1936, No. 16374. Convention date, June 11, 1935. [Class 83 (iii)] A lathe driver comprises opposed eccentric clamping dogs 2 which may be disengaged while the machine is running by externally applied force acting through lever mechanism. In one form, Fig. 2a, the body member 1 is fitted with a centre 3 and the clamping dogs are mounted on spindles 7 carrying lever arms 4 engaging a cam plate 11. The levers are urged by springs 8 to clamp the dogs onto the work and are moved against the springs to unclamp the work by axial movement of the plate 11. In a modification, Fig. 3, the levers 5 are moved against the clamping springs 9 by relative rotation of a central cam member 12 which is connected to a brake drum. In another modification the unclamping is effected by the overrunning of a flywheel member carrying a central actuator operating the clamping levers. In all cases a cover plate 16, Fig. 2a is arranged in front of the clamping dogs. and this plate carries interchangeable centring bushes 17 which have a slightly larger bore than the work diameter.
GB16374/36A 1935-06-11 1936-06-11 Improvements in lathe and like drivers Expired GB463227A (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
DEF79526D DE661713C (en) 1935-06-11 1935-06-11 Lathe driver with two opposing locking paws that are pressed against the workpiece by spring force

Publications (1)

Publication Number Publication Date
GB463227A true GB463227A (en) 1937-03-24

Family

ID=25944000

Family Applications (1)

Application Number Title Priority Date Filing Date
GB16374/36A Expired GB463227A (en) 1935-06-11 1936-06-11 Improvements in lathe and like drivers

Country Status (2)

Country Link
DE (1) DE661713C (en)
GB (1) GB463227A (en)

Cited By (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS4935968A (en) * 1972-08-07 1974-04-03
JPS5227687U (en) * 1975-08-19 1977-02-26
JPS53165285U (en) * 1977-05-30 1978-12-25
CN105397128A (en) * 2015-12-24 2016-03-16 成都好特精密机械有限公司 Floating clamping mechanism for bars
CN108687368A (en) * 2017-04-12 2018-10-23 罗伯特·博世有限公司 Collet for hand held power machine
CN111958512A (en) * 2020-06-23 2020-11-20 成都东光大华机械制造有限公司 Clamping tool structure for flywheel machining
CN113118822A (en) * 2021-04-21 2021-07-16 武汉荣拓智能设备有限公司 CNC numerical control lathe axle type work piece adds clamping apparatus

Families Citing this family (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE870628C (en) * 1943-12-21 1953-03-16 Bosch Gmbh Robert Automatic driver for turning bars

Cited By (8)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS4935968A (en) * 1972-08-07 1974-04-03
JPS5227687U (en) * 1975-08-19 1977-02-26
JPS53165285U (en) * 1977-05-30 1978-12-25
JPS5636567Y2 (en) * 1977-05-30 1981-08-28
CN105397128A (en) * 2015-12-24 2016-03-16 成都好特精密机械有限公司 Floating clamping mechanism for bars
CN108687368A (en) * 2017-04-12 2018-10-23 罗伯特·博世有限公司 Collet for hand held power machine
CN111958512A (en) * 2020-06-23 2020-11-20 成都东光大华机械制造有限公司 Clamping tool structure for flywheel machining
CN113118822A (en) * 2021-04-21 2021-07-16 武汉荣拓智能设备有限公司 CNC numerical control lathe axle type work piece adds clamping apparatus

Also Published As

Publication number Publication date
DE661713C (en) 1938-06-25

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