US671629A - Chuck for mandrels of turning-lathes. - Google Patents

Chuck for mandrels of turning-lathes. Download PDF

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Publication number
US671629A
US671629A US2307400A US1900023074A US671629A US 671629 A US671629 A US 671629A US 2307400 A US2307400 A US 2307400A US 1900023074 A US1900023074 A US 1900023074A US 671629 A US671629 A US 671629A
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United States
Prior art keywords
turning
chuck
lathes
mandrels
mandrel
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
US2307400A
Inventor
Ferdinand Mende
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Individual
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Individual
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Publication date
Application filed by Individual filed Critical Individual
Priority to US2307400A priority Critical patent/US671629A/en
Application granted granted Critical
Publication of US671629A publication Critical patent/US671629A/en
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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
    • B23B31/1207—Chucks with simultaneously-acting jaws, whether or not also individually adjustable moving obliquely to the axis of the chuck in a plane containing this axis
    • B23B31/1253—Jaws movement actuated by an axially movable member
    • 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
    • Y10T279/17—Socket type
    • Y10T279/17666—Radially reciprocating jaws
    • Y10T279/17692—Moving-cam actuator
    • Y10T279/17701—Threaded cam sleeve

Definitions

  • the object of my invention is an improvement in the chucks of the mandrels of turning-lathes, drilling-machines, and the like in order to enable the central fixing of metal parts and drills of various diameters.
  • Figure l represents a central longitudinal section of the chuck and the turning-lathe mandrel with the device for central xing.
  • Fig. 2 is a front view of Fig. 1.
  • Fig. 3 is a central longitudinal section of a modiiied form of construction, showing the chuck with the central-fixing device adapted to the mandrel of a turning-lathe of ordinary construction.
  • Fig. 4 is a front view of Fig. 3.
  • Fig. 5 represents a detail view.
  • the device represented in Figs. l and 2 consists of the conical end of a mandrel a and of a sleeve-like internally-screw-threaded socket or collar b, integral therewith.
  • the cone o. is surrounded by a cylinder c.
  • the cap d is provided on its outer surface with a worm which engages the thread of the socket or collar b, and the said cap d is by this means, as Well as by the cylinder c, guided in such a manner as to be concentric with the mandrel d.
  • the cheeks or bearers e are radially adjusted and are provided, in order to enable working with diameters of the greatest possible dierence, with dovetailed projections k for the additional faceblocks h, which are differently shaped for the various diameters, Figs. 2 and 4.
  • the cheeks e are supported by a movable ring g, provided with grooves l, into which the cheeks e lit.
  • the ring g is held to the cylinder c by means of a ring 't'.
  • the collar b is not integral with the mandrel a, but is fixed to the latter by means of screw bolts.
  • One or more such screw-boltsj pass through the cylinder c and the collar b.
  • a mandrel in a chuck for turninglathes, drillingmachines, and the like, a mandrel, a screw-threaded sleeve turning with the mandrel, a conical sleeve provided with interior grooves and having a screw-threaded connection with said screw-threaded sleeve, and cheeks or jaws iitting and sliding within the said grooves, the said mandrel being also provided with a conical surface and a sleeve c surrounding said conical surface for preventing the rearward movement of the cheeks or jaws, substantially as set forth.

Description

Patented Apr. .9, |901,
F. MENDE.
CHUCK FOR'MANDHELS 0F TURNING LlATHES.4
(No Model.)
UNrrED STATES PATEN FERDINAND MENDE, OF BERLIN, GERMANY.
CHUCK FOR MANDRELS OF TURNING-LATHES.
ASPLGIIEIGATION forming part of Letters Patent No. 671,629, dated April 9, 1901.
Application iiled July 10. 1900.
To a/ZZ whom t may concern,.-
Be it known that I, FERDINAND MENDE, topographer, a subject of the German Emperor, residing at 59 Bremerstrasse, Berlin, in the Empire of Germany, have invented Improvements in Chucks for the Mandrels of Turning- Lathes, Drilling-Machines, and the Like, of which the following is a specification.
The object of my invention is an improvement in the chucks of the mandrels of turning-lathes, drilling-machines, and the like in order to enable the central fixing of metal parts and drills of various diameters.
In the drawings two forms of the device are represented.
Figure l represents a central longitudinal section of the chuck and the turning-lathe mandrel with the device for central xing. Fig. 2 is a front view of Fig. 1. Fig. 3 is a central longitudinal section of a modiiied form of construction, showing the chuck with the central-fixing device adapted to the mandrel of a turning-lathe of ordinary construction. Fig. 4 is a front view of Fig. 3. Fig. 5 represents a detail view.
In Figs. l and 2 the parts are represented in the position they assume when a shaft of small diameter is held therein, and in Figs. 3 and 4 in the position' when a shaft of larger diameter is fixed.
The device represented in Figs. l and 2 consists of the conical end of a mandrel a and of a sleeve-like internally-screw-threaded socket or collar b, integral therewith. The cone o. is surrounded by a cylinder c. The cap d is provided on its outer surface with a worm which engages the thread of the socket or collar b, and the said cap d is by this means, as Well as by the cylinder c, guided in such a manner as to be concentric with the mandrel d. The 'screw-threads of parts b and d are subjected to equal wear, and their accuracy is therefore not diminished, and the friction between the cylinder c and the cap d is reduced to a minimum. On the other hand, through being directly connected with the mandrel a the socket or collar b imparts to the chuck great power of resistance to lateral pressure or impact. By this'combination of circumstances lasting accuracy of the ma- Serial No. 23,074. (No model.)
chine is insured. The same is the case when the device is employed in connection with a faceplate or a drilling-machine or the like. By means of the cap d the cheeks or bearers e are radially adjusted and are provided, in order to enable working with diameters of the greatest possible dierence, with dovetailed projections k for the additional faceblocks h, which are differently shaped for the various diameters, Figs. 2 and 4. The cheeks e are supported by a movable ring g, provided with grooves l, into which the cheeks e lit. The ring gis held to the cylinder c by means of a ring 't'.
In the form of construction represented in Figs. 3 and 4 the collar b is not integral with the mandrel a, but is fixed to the latter by means of screw bolts. One or more such screw-boltsj pass through the cylinder c and the collar b.
In tting the device together the cheeks e are inserted simultaneously into the grooves in the cap d and the grooves of the ring g after said ring has been fastened to the cylinder c by means of the ring '11. The whole is then pushed onto the cone-ot and fixed by the screw-bolts j. Each revolution of the cap d to the right moves the cheeks eso as to close and each revolution to the left so as to open.
What I claim as my invention, and desire to secure by Letters Patent, is
The combination in a chuck for turninglathes, drillingmachines, and the like, a mandrel, a screw-threaded sleeve turning with the mandrel, a conical sleeve provided with interior grooves and having a screw-threaded connection with said screw-threaded sleeve, and cheeks or jaws iitting and sliding within the said grooves, the said mandrel being also provided with a conical surface and a sleeve c surrounding said conical surface for preventing the rearward movement of the cheeks or jaws, substantially as set forth.
4Signed this 25th day of June, 1900, at Magdeburg, Germany.
FERDINAND MENDE.
Witnesses:
GEoReE H. MURPHY, CARL OSTERMANN.
US2307400A 1900-07-10 1900-07-10 Chuck for mandrels of turning-lathes. Expired - Lifetime US671629A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
US2307400A US671629A (en) 1900-07-10 1900-07-10 Chuck for mandrels of turning-lathes.

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
US2307400A US671629A (en) 1900-07-10 1900-07-10 Chuck for mandrels of turning-lathes.

Publications (1)

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US671629A true US671629A (en) 1901-04-09

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US2307400A Expired - Lifetime US671629A (en) 1900-07-10 1900-07-10 Chuck for mandrels of turning-lathes.

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