US1929869A - Quick-change chuck - Google Patents

Quick-change chuck Download PDF

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Publication number
US1929869A
US1929869A US579777A US57977731A US1929869A US 1929869 A US1929869 A US 1929869A US 579777 A US579777 A US 579777A US 57977731 A US57977731 A US 57977731A US 1929869 A US1929869 A US 1929869A
Authority
US
United States
Prior art keywords
ring
chuck
collar
locking
tool
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
US579777A
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English (en)
Inventor
Hassner Kurt
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 US1929869A publication Critical patent/US1929869A/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
    • B23B31/103—Retention by pivotal elements, e.g. catches, pawls
    • 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
    • Y10S—TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y10S403/00—Joints and connections
    • Y10S403/04—Quick release
    • 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
    • Y10T279/17761—Side detent

Definitions

  • the principal object of the invention is to provide means whereby the inserted element can be easily and quickly inserted into or dismounted from the chuck, both when the machine is stopped and while it is working. According to the vpresent invention this object is mainly ensured by the fact that the locking device consists of locking'levers surrounded by a ring which -is arranged.
  • the ring consists preferably of two ring sections which can be placed on to the chuck from both sides, and are connected by screws or some means.
  • a spring is suitably arranged which normally holds the ring in the position in which the locking levers are in the locking position.
  • Thev transmission of the rotating movement ⁇ from the chuck to the inserted element is suitably ensured by a lug arranged on the upper end of the inserted collar, which engages with a transverse groove of the chuck ⁇ andis provided with a half-cylindrical rounded part, so that the insertion of the inserted collar into the chuck while the machine is working is an' easy matter.
  • FIG. 1 is a.V longitudinal section through the quick change chuck with the inserted collar and with the locking levers in locking position
  • Fig. 2 is a similar section in the unlocked position of the locking levers.
  • Fig. 3 is a sectional view of an alternative form of construction in which the collar is inserted directly into a suitably shaped lower end of a rotating spindle.
  • Fig. 4 is an axial section through another modication
  • Fig. i is a section similar to Fig. 4, this section being takenV at 90 with respect to Fig. 4 on line 5-5 or Fig. 4,
  • Flg.6 is also a view similar to Fig. 4, showing still another modilication;l and (on. 21a-'16)
  • the present invention relates to a quick change I Fig. 7 is a longitudinal section through Fig. 6, on the line 7-7 thereof.
  • the chuck consists of a mainly cylindrical case or casing F which at its upper end is provided with '60 a cone-shaped journal F1.
  • caseF In the caseF are in longitudinal direction a number of slots or out' out parts, in which are arranged a corresponding number of locking levers B.
  • the locking levers B are surrounded by an axially slidable ring, which consists of two ring sections R1 and ⁇ R2 which slide on to the case F and are rmly connected one with the other by threads or some other suitable means.
  • a spring D which tends to press downward the ring R', R2 consisting of 'two sections which is slidably arranged on the case F.
  • the locking levers B which are enclosed in the two-part ring R1, R2 are at their upper and lower ends narrower than in the intermediate part and have at the outer side of the lower part a bevelled part B1.
  • the upper and lower ends-of the loclning levers B co-act with the inclined or cam sur faces C1, C2 respectively, which are on the inner side of the ring sections R1, R2, the said inclined 05 surfaces being so arranged that when the ring R1, R2 is moved upwards, by overcoming the ten sion of the spring D, the locking levers B are so pivoted by the inclined surface C2 which en gages with their lower ends, that their upperends l0@ moved outwardly, while with the subsequent downward movement of the ring R1, Rthe lock ing levers B are again moved inwardly by .the in clined surface Cl which engages with their upper ends.
  • Fig. 3 differs from the one shown in Figs. 1 and2 principally in that the chuck F is formed direct by the correspondingly shaped lower end of the spindle S of a drill or other tool machine.
  • This arrangement has the advantage that the tools will lie very close to the bearing L of the spindle S.
  • N1 denotes said catch body, which is cylindrical at its exterior circumference which .engages a correspondingly shaped bore of the case F and is provided at its' upper side with a threaded stud O screwed into a correspondingly threaded bore of the case F.
  • the further modification shown in Figs. 6 and '7 N1 is the catch body which in this case has no threaded stud, but is threaded at its ex- 1 tenor-circumference. A corresponding thread is provided in the case F. Owing thereto, the catch body N1z can be easily exchanged, which is true also of the catch-body ⁇ N1 (Figs. 4 and 5)..
  • collar E can be very reliably centered, as well as guided, in the case F.
  • a quick-change chuck for machine tools, particularly drills comprising a casing; a toolholding member adapted to be inserted in said casing and 'having a shoulder; independent means for transmitting rotation from the casing to the tool holding member; la.
  • ring provided around said casing 'and the tool-holding member and having an inner'cam surface at each end thereof; and a straight locking member arranged within the ring and being loosely and tiltably mounted to tilt against and secure the tool-holding member in the casing, said ring being adapted to slide axially with a relatively short movement to tilt the locking member into and out of engagement with the tool-holding member when the respective end of the locking member contacts with its cooperating cam surface of the ring, and said locking member when in engagement with the tool-holding member being in a position to abut at one end against the shoulder and at the other endagainst the ring.
  • a chuck according to claim 1 ⁇ in which a spring is provided around the vcasing and bearing against the ring to normally maintain the ⁇ ring so that the tool-holding member will be in locked position in Athe chuck;
  • a quick-change chuck for machine tools, particularly drills comprising a casing; a toolholding member adapted to be inserted in said casing and having a groove therein; independent means for the transmitting rotation from the casing to the tool-holding member; a ring.pro vided around said casing and having aninner cam surface at each end thereof; and a plurality of straight locking members arranged within the ring being in the vform of tiltable levers which are loosely mounted to tilt against and secure the tool-holding member in the casing, said ring being adapted to slide axially on the casing with a relatively short movement to tilt the locking members into or out of engagement with- ⁇ the grooves' of the tool-holding member when the respective ends of the holding members contact with their cooperating cam surface of the ring, and said locking members when in engagement with the tool-holding members being in a position to abut at one end in the groove and at 'the' other end against the ring.
  • a chuck according to claim 3 in which a spring is provided around the casing and bearing against the ring to normally maintain thering in position so-that the tool-holding members will be in engagement with the groove of the toolholding member.

Landscapes

  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Mechanical Pencils And Projecting And Retracting Systems Therefor, And Multi-System Writing Instruments (AREA)
  • Gripping On Spindles (AREA)
US579777A 1930-10-18 1931-12-08 Quick-change chuck Expired - Lifetime US1929869A (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
DE590144T 1930-10-18

Publications (1)

Publication Number Publication Date
US1929869A true US1929869A (en) 1933-10-10

Family

ID=7749899

Family Applications (1)

Application Number Title Priority Date Filing Date
US579777A Expired - Lifetime US1929869A (en) 1930-10-18 1931-12-08 Quick-change chuck

Country Status (3)

Country Link
US (1) US1929869A (de)
DE (1) DE590144C (de)
FR (1) FR724739A (de)

Cited By (12)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2467045A (en) * 1943-04-06 1949-04-12 Ml Aviation Co Ltd Towing and release mechanism
US3255721A (en) * 1964-01-02 1966-06-14 Diversification Dev Inc Composite structure utilizing novel assembling joint
US3825387A (en) * 1971-05-07 1974-07-23 California Pellet Mill Co Quick-change die and roller assembly
US3911550A (en) * 1972-03-30 1975-10-14 California Pellet Mill Co Quick-change die and roller assembly
US4638537A (en) * 1985-04-22 1987-01-27 Crankshaft Machine Company Concise quick release tool holder
US5312147A (en) * 1993-08-09 1994-05-17 G & H Technology, Inc. Electromechanical high load separation apparatus with a smooth release
WO1997013607A1 (de) * 1995-10-06 1997-04-17 Robert Bosch Gmbh Handwerkzeugmaschine mit werkzeughalter und zugehöriges werkzeug
US6053675A (en) * 1998-06-26 2000-04-25 Black & Decker Inc. Quick-acting tool bit holder
US8968107B2 (en) * 2012-01-06 2015-03-03 Bettcher Industries, Inc. Flex shaft-drive motor connection for power operated rotary knife
US9121438B2 (en) 2012-01-06 2015-09-01 Bettcher Industries, Inc. Flex shaft with crimped lock sleeve for power operated rotary knife
US9265263B2 (en) 2012-01-06 2016-02-23 Bettcher Industries, Inc. Flex shaft-tool connection for power operated rotary knife
US10309126B2 (en) * 2016-01-21 2019-06-04 Arconic Inc. Pawl latch

Families Citing this family (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR914842A (fr) * 1943-10-21 1946-10-18 Mandrin
DE874855C (de) * 1950-06-04 1953-04-27 Karl Heyer Schnellwechselfutter fuer Werkzeugmaschinen, insbesondere Bohrmaschinen, Fraesmaschinen, Drehbaenke
DE885645C (de) * 1951-03-14 1953-08-06 Kurt Haessner Schnellwechselfutter fuer Werkzeugmaschinen, insbesondere Bohrmaschinen
DE2621809C2 (de) * 1976-05-15 1983-01-13 Hawera Probst Gmbh + Co, 7980 Ravensburg Bohreinrichtung für einen Gesteinsbohrer, insbesondere einen Schlagbohrer, Hammerbohrer und dergleichen
US4587964A (en) * 1985-02-05 1986-05-13 Zimmer, Inc. Rasp tool

Cited By (15)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2467045A (en) * 1943-04-06 1949-04-12 Ml Aviation Co Ltd Towing and release mechanism
US3255721A (en) * 1964-01-02 1966-06-14 Diversification Dev Inc Composite structure utilizing novel assembling joint
US3825387A (en) * 1971-05-07 1974-07-23 California Pellet Mill Co Quick-change die and roller assembly
US3911550A (en) * 1972-03-30 1975-10-14 California Pellet Mill Co Quick-change die and roller assembly
US4638537A (en) * 1985-04-22 1987-01-27 Crankshaft Machine Company Concise quick release tool holder
US5312147A (en) * 1993-08-09 1994-05-17 G & H Technology, Inc. Electromechanical high load separation apparatus with a smooth release
WO1997013607A1 (de) * 1995-10-06 1997-04-17 Robert Bosch Gmbh Handwerkzeugmaschine mit werkzeughalter und zugehöriges werkzeug
US6059493A (en) * 1995-10-06 2000-05-09 Robert Bosch Gmbh Manual machine tool with tool holder and appropriate tool
CN1080157C (zh) * 1995-10-06 2002-03-06 罗伯特-博希股份公司 带工具夹头和相应工具的手工工具机
US6053675A (en) * 1998-06-26 2000-04-25 Black & Decker Inc. Quick-acting tool bit holder
US8968107B2 (en) * 2012-01-06 2015-03-03 Bettcher Industries, Inc. Flex shaft-drive motor connection for power operated rotary knife
US9121438B2 (en) 2012-01-06 2015-09-01 Bettcher Industries, Inc. Flex shaft with crimped lock sleeve for power operated rotary knife
US9265263B2 (en) 2012-01-06 2016-02-23 Bettcher Industries, Inc. Flex shaft-tool connection for power operated rotary knife
US10400815B2 (en) 2012-01-06 2019-09-03 Bettcher Industries, Inc. Flex shaft—tool connection for power operated rotary knife
US10309126B2 (en) * 2016-01-21 2019-06-04 Arconic Inc. Pawl latch

Also Published As

Publication number Publication date
DE590144C (de) 1933-12-29
FR724739A (fr) 1932-05-02

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