DE865093C - Device for adjusting lathe chuck jaws - Google Patents

Device for adjusting lathe chuck jaws

Info

Publication number
DE865093C
DE865093C DEB15251A DEB0015251A DE865093C DE 865093 C DE865093 C DE 865093C DE B15251 A DEB15251 A DE B15251A DE B0015251 A DEB0015251 A DE B0015251A DE 865093 C DE865093 C DE 865093C
Authority
DE
Germany
Prior art keywords
lathe chuck
chuck jaws
spindle
threaded spindle
adjusting lathe
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
DEB15251A
Other languages
German (de)
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
Priority to DEB15251A priority Critical patent/DE865093C/en
Application granted granted Critical
Publication of DE865093C publication Critical patent/DE865093C/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
    • B23B31/16—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
    • B23B31/1605—Details of the jaws
    • B23B31/16062—Individually adjustable jaws
    • 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
    • B23B31/101—Chucks with separately-acting jaws movable radially
    • 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

Landscapes

  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Gripping On Spindles (AREA)

Description

Die Eifindung - betrifft eine Vorrichtung zum Verstellen von Drehbänkfutterbacken., in die eine Gewindespindel eingreift. Bei den bisher bekannten-Drehbankfutterbacken, ob sie von Hand oder elektrisch angetrieben werden, besteht der übelstand, daß die Spannbacken, auch wenn sie mach ihrem Ein-,spannen, im Futter ausgedreht und ausgeschliffen sind, wie es, normalerweise der Fall ist, durch den Verschleiß' nicht mehr rund laufeng, so, daß das Futter nicht mehr dien Forderungen der modernen Technik entspricht. Man hat zwar bereits. versucht, diesen Übelständen dadurch abzuhelfen, daß man die Backen mit, dünnem Papier oder Blech hinter-. . legte, jedoch kann es sich dabei nur um eine Behelfs@m-a,ßnahme handeln. ' Dieses: Problem hat in der Erfindung eine Lösung gefunden.. Sie besteht darin,. daß die mit den Spannbacken gekuppelte Gewindespindel in. ihrem Uage:r "' axial einstellbar ist. Nunmnehr ist es möglich, mit Hilfe dieser Spindel die Spannbacken bei nicht ausreichender Rundlaüfgenauigkeit in einfacher und sicherer Weise so zu verstellen, daß die gewünschte Rundlaufgenauigkeit exzi`elt wird. So, ist es nach der Erfindung möglich., ein Drehbankfutter zu erhalten, welches einwandfrei arbeitet., -In den Figuren sind Ausführungsbeispiele der Erfindung dargestellt. Es zeigt Fig. z das, Drehbankfutter in Vorderansichty teilweise im Schnitt, - . Fig. 2 das Drehbankfutter in Seitenansicht, zur Hälfte geschnitten, Eig._3 das Drehbankfutter mit elektrischem Antrieb in Seitenansicht, zur Hälfte geschnitten.The invention relates to a device for adjusting lathe chuck jaws, in which a threaded spindle engages. With the previously known lathe chuck jaws, whether they are driven by hand or electrically, there is the disadvantage that the clamping jaws, even if they are made to clamp, are turned out in the chuck and ground out, as is normally the case, through the wear 'no longer run smoothly, so that the lining no longer meets the requirements of modern technology. You already have. tries to remedy these inconveniences by backing the cheeks with thin paper or sheet metal. . but it can only be a makeshift measure. 'This: problem has found a solution in the invention. that the threaded spindle coupled with the clamping jaws is axially adjustable in its Uage: r "". Now it is possible, with the help of this spindle, to adjust the clamping jaws in a simple and safe manner so that the desired concentricity is excised if the concentricity is insufficient Thus, according to the invention, it is possible to obtain a lathe chuck which works properly. Embodiments of the invention are shown in the figures. 2 the lathe chuck in side view, half cut, Eig._3 the lathe chuck with electric drive in side view, half cut.

Nach der Erfindung ist die Gewindespindel a, an der die Spannbacke b aufgehängt ist, : i.n einem Mittellager c axial verswllbär_-angeordn.et, In dein dargestellten Ausführüngsbeispi7l besteht das Mittellager aus zwei Scheiben; während die Feststellung durch die Mutter d und die Kontermutter e vorgenommen wird. Da es sich bei der Verstellung der Spindel in axialer Richtung immer nur um -Bruchteile eines Millimeters handelt, wird sie zweckmäßig in der Weise vorgenommen, @da3 die Lagerscheiben c entsprechend abgeschabt werden oder, durch entsprechende andere Scheiben, welche dünner oder dicker sind, ersetzt werden, worauf die Spindel durch die Muttern d, e erneut festgestellt -wird. Zu diesem Zweck reicht das Gewinde f auf der Spindel a etwas Über die Muttern d, e hinaus,. Die Drehbewegung der durch das Vierkantloch g von Hand -angetriebenen Spindel a erfolgt Über die Kegelradkupplung h, i in an sich bekannter Weise auf die übrigen` Spannbacken.According to the invention, the threaded spindle a, on which the clamping jaw b is suspended, is: in a central bearing c axially verswllbär_-angeordn.et, In the embodiment shown, the central bearing consists of two discs; while the determination is made by the nut d and the lock nut e. Since the adjustment of the spindle in the axial direction is only a fraction of a millimeter, it is expediently carried out in such a way that the bearing disks c are scraped off accordingly or replaced by corresponding other disks which are thinner or thicker whereupon the spindle is determined again by nuts d, e. For this purpose the thread f on the spindle a extends a little beyond the nuts d, e . The rotary movement of the spindle a, which is manually driven through the square hole g, takes place via the bevel gear coupling h, i in a manner known per se on the remaining 'clamping jaws.

Das Ausführungsbeispiel der Fig. 3 zeigt ein Spannfutter, das elektrisch angetrieben wird. Der Antrieb erfolgt von der elektrisch angetriebenen Mittelspindel k über das Zwischenrad m auf das auf. der Gewindespindel a angebrachte" Kegelrad lt.The embodiment of Fig. 3 shows a chuck that electrically is driven. It is driven by the electrically driven central spindle k on the intermediate gear m on the. the threaded spindle a attached "bevel gear according to

Claims (1)

PATENTANSPRÜCHE i. Vorrichtung zum Verstellen von Drehbankfutterbacken, in die eine. Gewindespindel eingreift, ,dadurch -gekennzeichnet, daß die Gewindespindel (a) in ihrem Lager (c) axial einstellbar ist. . Vorrichtung nach Anspruch z, dadurch gekennzeichnet, daß die durch Muttern (d, e) feststellbare Gewindespindel durch Scheiben (c) verschiedener Dicke einstellbar ist. "PATENT CLAIMS i. Device for adjusting lathe chuck jaws, in one. Threaded spindle engages, characterized in that the threaded spindle (a) is axially adjustable in its bearing (c). . Device according to claim z, characterized characterized in that the threaded spindle lockable by nuts (d, e) through Slices (c) of different thicknesses can be adjusted. "
DEB15251A 1951-06-03 1951-06-03 Device for adjusting lathe chuck jaws Expired DE865093C (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
DEB15251A DE865093C (en) 1951-06-03 1951-06-03 Device for adjusting lathe chuck jaws

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
DEB15251A DE865093C (en) 1951-06-03 1951-06-03 Device for adjusting lathe chuck jaws

Publications (1)

Publication Number Publication Date
DE865093C true DE865093C (en) 1953-01-29

Family

ID=6958355

Family Applications (1)

Application Number Title Priority Date Filing Date
DEB15251A Expired DE865093C (en) 1951-06-03 1951-06-03 Device for adjusting lathe chuck jaws

Country Status (1)

Country Link
DE (1) DE865093C (en)

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE1136184B (en) * 1959-01-21 1962-09-06 Kurt Bernard Schoenenberger Multi-jaw chucks for machine tools, especially for lathes
DE3500002A1 (en) * 1985-01-02 1985-08-14 Lieber, Werkzeugmaschinenfabrik, Inh. Elfriede Lieber, 4990 Lübbecke POWER CHUCK 300 MM - 5000 MM (DIAMETER)
CZ308372B6 (en) * 2019-04-30 2020-07-01 VĂŤTKOVICE MECHANIKA a. s. Device for eliminating the misalignment of a heavy turned workpiece and the method

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE1136184B (en) * 1959-01-21 1962-09-06 Kurt Bernard Schoenenberger Multi-jaw chucks for machine tools, especially for lathes
DE3500002A1 (en) * 1985-01-02 1985-08-14 Lieber, Werkzeugmaschinenfabrik, Inh. Elfriede Lieber, 4990 Lübbecke POWER CHUCK 300 MM - 5000 MM (DIAMETER)
CZ308372B6 (en) * 2019-04-30 2020-07-01 VĂŤTKOVICE MECHANIKA a. s. Device for eliminating the misalignment of a heavy turned workpiece and the method

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