US2006621A - Motor operated chuck for lathes and other machine tools - Google Patents

Motor operated chuck for lathes and other machine tools Download PDF

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Publication number
US2006621A
US2006621A US707363A US70736334A US2006621A US 2006621 A US2006621 A US 2006621A US 707363 A US707363 A US 707363A US 70736334 A US70736334 A US 70736334A US 2006621 A US2006621 A US 2006621A
Authority
US
United States
Prior art keywords
clamping
motor
wheel
base wheel
lathes
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 - Lifetime
Application number
US707363A
Other languages
English (en)
Inventor
Berg Wilhelm
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
Priority to DEB153647D priority Critical patent/DE574505C/de
Priority to BE387350D priority patent/BE387350A/xx
Priority to FR734139D priority patent/FR734139A/fr
Priority to US608763A priority patent/US1971638A/en
Priority claimed from US608763A external-priority patent/US1971638A/en
Application filed by Individual filed Critical Individual
Priority to US707363A priority patent/US2006621A/en
Application granted granted Critical
Publication of US2006621A publication Critical patent/US2006621A/en
Anticipated expiration legal-status Critical
Expired - Lifetime legal-status Critical Current

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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
    • B23B31/16—Chucks with simultaneously-acting jaws, whether or not also individually adjustable moving radially
    • B23B31/16045—Jaws movement actuated by screws and nuts or oblique racks
    • B23B31/16079—Jaws movement actuated by screws and nuts or oblique racks using mechanical transmission through the spindle
    • Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y10—TECHNICAL SUBJECTS COVERED BY FORMER USPC
    • Y10T—TECHNICAL SUBJECTS COVERED BY FORMER US CLASSIFICATION
    • Y10T279/00—Chucks or sockets
    • Y10T279/19—Radially reciprocating jaws
    • Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y10—TECHNICAL SUBJECTS COVERED BY FORMER USPC
    • Y10T—TECHNICAL SUBJECTS COVERED BY FORMER US CLASSIFICATION
    • Y10T279/00—Chucks or sockets
    • Y10T279/27—Separate chuck-actuating power source
    • Y10T279/275—Self-contained

Definitions

  • the invention relates to a chuck for lathes and machine tools: inwhich the motor, for instancean electromotor, effects the adjusting of the clamping cheeks. In this arrangement the motor must be able to; continue'to; run after'the clamping proceeding has been terminated, that is when the clamping cheeks bear tightly against the work and can no longer move.
  • the base wheel is fitted with a locking device constructed so that by the same also the limiting of the clamping pressure can be attained.
  • the arrangement may consist for instance of spring controlled poles or looking bolts engaging from the inner side with notchesin the circumference of the base wheel.
  • the runner wheel rotates and effects the opening and closing of the chuck. If, however, the clamping is terminated, the runner wheel remains inoperative, Whereas the looking on the base wheel, that is the spring controlled locking bolts yield and the base wheel continues to rotate, the motor continuing to run.
  • the mechanical locking of the base wheel may be regulated in various manners.
  • the number of spring controlled locking bolts may be changed or the spring pressure varied. In both cases it is possible to exert by mechanical means the quite determined clamping pressure. This arrange- -ment of the spring controlled locking bolt on the circumference of the base wheel presents, however, another advantage.
  • locking bolts are arranged at certain distances apart around the circumfer- 15 ence of the base wheel so that, between the individual notches, the motor can run idle when the locking bolt is disengaged in order to thus accumulate energy in its rotating mass which, when the locking bolt suddenly engages in the base 20 wheel, is converted into a considerably increased turning moment. This sequence repeats itself until the disengagement has been efiected.
  • the minimum spacing of the notches in the circumference of the base wheel is therefore 25 determined by the idle running time of the motor, which is necessary for storing the energies required for disengaging the clamping cheeks.
  • Fig. 1 shows in longitudinal section the chuck driven by an electric motor.
  • Fig. 2 is a cross section through the base wheel on line 2-2 of Fig. 1.
  • the clamping device 2 for 35 the clamping checks 1 is arranged.
  • This clamping device is driven from a shaft I2 on which a runner wheel II is keyed.
  • a base wheel 10 of the planet gear is arranged.
  • the two wheels have a slightly 40 diiferent number of teeth and the circulating planet wheels 8 mesh with the internal teeth of the said two wheels, said planet wheels 8 being driven by a pinion 6 from the shaft of an electromotor 9.
  • locking bolts l3, preferably bevelled at the lower end are arranged which are spring controlled, the spring pressure adapted to be altered by the adjusting of brushes l4.
  • the locking bolt securely holds the 0 base wheel In so that the runner wheel ll rotates.
  • the runner wheel H is stopped, whereas the clamping pressure of the locking bolts is overcome by the kinetic energy 55 of the motor so that the locking bolt disengages and the base wheel rotates.

Landscapes

  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Gripping On Spindles (AREA)
US707363A 1931-09-04 1934-01-19 Motor operated chuck for lathes and other machine tools Expired - Lifetime US2006621A (en)

Priority Applications (5)

Application Number Priority Date Filing Date Title
DEB153647D DE574505C (de) 1931-09-04 Mehrbacken-Spannfutter fuer Werkzeugmaschinen
BE387350D BE387350A (xx) 1931-09-04
FR734139D FR734139A (fr) 1931-09-04 1932-03-24 Mandrin commandé par moteur pour tours et autres machines-outils
US608763A US1971638A (en) 1931-09-04 1932-05-02 Motor operated chuck for lathes and other machine tools
US707363A US2006621A (en) 1931-09-04 1934-01-19 Motor operated chuck for lathes and other machine tools

Applications Claiming Priority (3)

Application Number Priority Date Filing Date Title
DE1971638X 1931-09-04
US608763A US1971638A (en) 1931-09-04 1932-05-02 Motor operated chuck for lathes and other machine tools
US707363A US2006621A (en) 1931-09-04 1934-01-19 Motor operated chuck for lathes and other machine tools

Publications (1)

Publication Number Publication Date
US2006621A true US2006621A (en) 1935-07-02

Family

ID=32474867

Family Applications (1)

Application Number Title Priority Date Filing Date
US707363A Expired - Lifetime US2006621A (en) 1931-09-04 1934-01-19 Motor operated chuck for lathes and other machine tools

Country Status (3)

Country Link
US (1) US2006621A (xx)
BE (1) BE387350A (xx)
FR (1) FR734139A (xx)

Cited By (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3128482A (en) * 1960-03-30 1964-04-14 Taylor Wilson Mfg Co Method of supporting and rotating pipe for threading operation
US3936060A (en) * 1973-08-08 1976-02-03 Fuji Electric Company, Ltd. Means for detecting opening degree of claws of an electrically driven machine tool chuck
US4247124A (en) * 1977-09-03 1981-01-27 Rems-Werk Christian Foll Und Sohne Gmbh & Co. Chuck
US4482163A (en) * 1982-09-29 1984-11-13 Litton Industrial Products, Inc. Spindle powered adjustable chuck
US4951535A (en) * 1987-11-03 1990-08-28 Smw Schneider & Weisshaupt Gmbh Apparatus for actuating the clamping jaws of a chuck
US6629697B1 (en) * 1999-12-17 2003-10-07 Fuji Machine Mfg. Co., Ltd. Chuck apparatus
US20130154206A1 (en) * 2010-08-23 2013-06-20 Ev Group Gmbh Chuck which can be coupled by automation

Cited By (9)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3128482A (en) * 1960-03-30 1964-04-14 Taylor Wilson Mfg Co Method of supporting and rotating pipe for threading operation
US3936060A (en) * 1973-08-08 1976-02-03 Fuji Electric Company, Ltd. Means for detecting opening degree of claws of an electrically driven machine tool chuck
US4247124A (en) * 1977-09-03 1981-01-27 Rems-Werk Christian Foll Und Sohne Gmbh & Co. Chuck
US4482163A (en) * 1982-09-29 1984-11-13 Litton Industrial Products, Inc. Spindle powered adjustable chuck
US4951535A (en) * 1987-11-03 1990-08-28 Smw Schneider & Weisshaupt Gmbh Apparatus for actuating the clamping jaws of a chuck
US6629697B1 (en) * 1999-12-17 2003-10-07 Fuji Machine Mfg. Co., Ltd. Chuck apparatus
US20130154206A1 (en) * 2010-08-23 2013-06-20 Ev Group Gmbh Chuck which can be coupled by automation
US9555479B2 (en) * 2010-08-23 2017-01-31 Ev Group Gmbh Chuck adapted for automated coupling
US9925597B2 (en) 2010-08-23 2018-03-27 Ev Group Gmbh Chuck adapted for automated coupling

Also Published As

Publication number Publication date
FR734139A (fr) 1932-10-17
BE387350A (xx)

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