DE4311504C1 - Precision adjusting nut for surface impact free adjusting and locking - is used e.g. for roller bearings esp. in machine tool spindles and other parts to be secured on shafts - Google Patents

Precision adjusting nut for surface impact free adjusting and locking - is used e.g. for roller bearings esp. in machine tool spindles and other parts to be secured on shafts

Info

Publication number
DE4311504C1
DE4311504C1 DE4311504A DE4311504A DE4311504C1 DE 4311504 C1 DE4311504 C1 DE 4311504C1 DE 4311504 A DE4311504 A DE 4311504A DE 4311504 A DE4311504 A DE 4311504A DE 4311504 C1 DE4311504 C1 DE 4311504C1
Authority
DE
Germany
Prior art keywords
adjusting nut
precision
shaft
sleeve section
precision adjusting
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 - Fee Related
Application number
DE4311504A
Other languages
German (de)
Inventor
Eckhard Wolf
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.)
MAX LAMB KG
Original Assignee
MAX LAMB 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 MAX LAMB KG filed Critical MAX LAMB KG
Priority to DE4311504A priority Critical patent/DE4311504C1/en
Application granted granted Critical
Publication of DE4311504C1 publication Critical patent/DE4311504C1/en
Anticipated expiration legal-status Critical
Expired - Fee Related legal-status Critical Current

Links

Classifications

    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B23—MACHINE TOOLS; METAL-WORKING NOT OTHERWISE PROVIDED FOR
    • B23P—METAL-WORKING NOT OTHERWISE PROVIDED FOR; COMBINED OPERATIONS; UNIVERSAL MACHINE TOOLS
    • B23P11/00—Connecting or disconnecting metal parts or objects by metal-working techniques not otherwise provided for 
    • B23P11/02—Connecting or disconnecting metal parts or objects by metal-working techniques not otherwise provided for  by first expanding and then shrinking or vice versa, e.g. by using pressure fluids; by making force fits
    • B23P11/025—Connecting or disconnecting metal parts or objects by metal-working techniques not otherwise provided for  by first expanding and then shrinking or vice versa, e.g. by using pressure fluids; by making force fits by using heat or cold
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B23—MACHINE TOOLS; METAL-WORKING NOT OTHERWISE PROVIDED FOR
    • B23Q—DETAILS, COMPONENTS, OR ACCESSORIES FOR MACHINE TOOLS, e.g. ARRANGEMENTS FOR COPYING OR CONTROLLING; MACHINE TOOLS IN GENERAL CHARACTERISED BY THE CONSTRUCTION OF PARTICULAR DETAILS OR COMPONENTS; COMBINATIONS OR ASSOCIATIONS OF METAL-WORKING MACHINES, NOT DIRECTED TO A PARTICULAR RESULT
    • B23Q1/00—Members which are comprised in the general build-up of a form of machine, particularly relatively large fixed members
    • B23Q1/25—Movable or adjustable work or tool supports
    • B23Q1/26—Movable or adjustable work or tool supports characterised by constructional features relating to the co-operation of relatively movable members; Means for preventing relative movement of such members
    • B23Q1/262—Movable or adjustable work or tool supports characterised by constructional features relating to the co-operation of relatively movable members; Means for preventing relative movement of such members with means to adjust the distance between the relatively slidable members
    • B23Q1/265—Movable or adjustable work or tool supports characterised by constructional features relating to the co-operation of relatively movable members; Means for preventing relative movement of such members with means to adjust the distance between the relatively slidable members between rotating members
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
    • F16C—SHAFTS; FLEXIBLE SHAFTS; ELEMENTS OR CRANKSHAFT MECHANISMS; ROTARY BODIES OTHER THAN GEARING ELEMENTS; BEARINGS
    • F16C25/00—Bearings for exclusively rotary movement adjustable for wear or play
    • F16C25/06—Ball or roller bearings
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
    • F16C—SHAFTS; FLEXIBLE SHAFTS; ELEMENTS OR CRANKSHAFT MECHANISMS; ROTARY BODIES OTHER THAN GEARING ELEMENTS; BEARINGS
    • F16C35/00—Rigid support of bearing units; Housings, e.g. caps, covers
    • F16C35/04—Rigid support of bearing units; Housings, e.g. caps, covers in the case of ball or roller bearings
    • F16C35/06—Mounting or dismounting of ball or roller bearings; Fixing them onto shaft or in housing
    • F16C35/063—Fixing them on the shaft
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
    • F16C—SHAFTS; FLEXIBLE SHAFTS; ELEMENTS OR CRANKSHAFT MECHANISMS; ROTARY BODIES OTHER THAN GEARING ELEMENTS; BEARINGS
    • F16C19/00—Bearings with rolling contact, for exclusively rotary movement
    • F16C19/02—Bearings with rolling contact, for exclusively rotary movement with bearing balls essentially of the same size in one or more circular rows
    • F16C19/14—Bearings with rolling contact, for exclusively rotary movement with bearing balls essentially of the same size in one or more circular rows for both radial and axial load
    • F16C19/16—Bearings with rolling contact, for exclusively rotary movement with bearing balls essentially of the same size in one or more circular rows for both radial and axial load with a single row of balls
    • F16C19/163—Bearings with rolling contact, for exclusively rotary movement with bearing balls essentially of the same size in one or more circular rows for both radial and axial load with a single row of balls with angular contact
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
    • F16C—SHAFTS; FLEXIBLE SHAFTS; ELEMENTS OR CRANKSHAFT MECHANISMS; ROTARY BODIES OTHER THAN GEARING ELEMENTS; BEARINGS
    • F16C2322/00—Apparatus used in shaping articles
    • F16C2322/39—General build up of machine tools, e.g. spindles, slides, actuators

Landscapes

  • Engineering & Computer Science (AREA)
  • General Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Mounting Of Bearings Or Others (AREA)

Abstract

The adjusting nut consists of a threaded section (4) screwed on the shaft (5), and a sleeve section (6) with a cylindrical bore connected axially to the threaded section (4). The sleeve section surrounds the shaft, and its free endface lies at a bearing ring or similar. The outer surface of the sleeve section (6) is designed with a conical shape. A conical locking shrink ring (1) is shrunk on over the axially connecting sleeve section (6) of the precision adjusting nut. This precision part presses the adjusting nut on the shaft (5). ADVANTAGE - Improved precision adjusting nut.

Description

Die am Markt erhältlichen Präzisionsmuttern weisen meist eine geschliffene Planfläche auf, jedoch ist es für den Hersteller wie für den Anwender so gut wie unmöglich, den Planschlag zum Gewinde der Stellmutter zu überprüfen. Eine zweite Fehlerquelle ist das Wellengewinde, selbst wenn dieses geschliffen ist. Die dritte Beeinflussung des Planschlages im montierten Zustand tritt durch die radial, axial oder unter einem Winkel angeordneten Klemmschrauben auf.The precision nuts available on the market usually have one ground flat surface, but it is for the manufacturer as for the user is virtually impossible to flatten the thread of the Check adjusting nut. A second source of error is that Shaft thread, even if it is ground. The third influence of the plan stroke in the assembled state occurs through the radial, axial or at an angle arranged clamping screws on.

Bei der radial angeordneten Klemmschraube wird durch das Klemmen die Stellmutter direkt radial verschoben. Auf der Stellschraubenseite wird dabei das Wellen- und Muttergewinde radial auseinandergezogen. Die im montierten Zustand anliegende Axiallast kann diese Mutternhälfte entsprechend des freiwerdenden Flankenspiels zurückschieben. Auf der gegenüberliegenden Seite werden die Gewindegänge ineinander gepreßt. Entsprechend dem Flankenwinkel entsteht eine Verlagerung der Präzisionsmutter und somit der Planfläche in Richtung anliegende Kraft. Mit diesen drei Fehlerquellen können Planschläge an der Stellmutter erzeugt werden, die ein Mehrfaches des gewünschten Wertes (oft nur wenige µm) betragen.In the case of the radially arranged clamping screw, the The adjusting nut is directly radially displaced. On the set screw side the shaft and nut threads are pulled apart radially. The in Axial load applied to this nut half can be applied accordingly the backlash released. On the on the opposite side, the threads are pressed together. The precision nut is displaced in accordance with the flank angle and thus the plane surface in the direction of the applied force. With these three sources of error, flaps on the adjusting nut are generated that are a multiple of the desired value (often only a few µm).

Die Folge sind, z. B. gestörte Abrollverhältnisse der hochpräzisen Spindellager und daraus resultierend, ein größerer Plan- und Rundlauffehler an der Spindelnase sowie erhöhte Betriebstemperaturen.The result is, for. B. disturbed rolling conditions of the high-precision Spindle bearing and, as a result, a larger plan and concentricity error on the spindle nose as well as increased operating temperatures.

Ähnliche Auswirkungen zeigen sich auch bei den anderen Sicherungsmethoden, die auf der Basis der Gewindeklemmung wirken.Similar effects can also be seen in the others Securing methods that work on the basis of thread clamping.

In der DE 39 05 385 C2 wird vorgeschlagen, die Innenumfangsfläche des Hülsenabschnitts einer Einstellmutter mit der Mantelfläche der Spindel einseitig zur Anlage zu bringen.DE 39 05 385 C2 proposes the inner peripheral surface of the Sleeve section of an adjusting nut with the outer surface of the spindle to bring to one side.

Der Erfindung liegt die Aufgabe zugrunde, eine verbesserte Präzisionsanstellmutter bereitzustellen.The invention has for its object an improved precision adjusting nut to provide.

Die Lösung der Aufgabe erfolgt durch die im Patentanspruch 1 angeführten Maßnahmen.The problem is solved by those specified in claim 1 Activities.

In der Fig. 1 ist ein Ausführungsbeispiel gezeigt und wird im folgenden genauer beschrieben:An exemplary embodiment is shown in FIG. 1 and is described in more detail below:

An der Präzisionsanstellmutter, bestehend aus dem Gewindeabschnitt (4) und dem axial anschließenden Hülsenabschnitt (6), sind die Bohrung (2) und die Planfläche (3) des Hülsenabschnittes (6) in entsprechender Genauigkeit senkrecht zueinander ausgeführt. Die Bohrung (2) des Hülsenabschnittes (6) weist ein Spiel zum Wellendurchmesser (5) auf. Mittels eines geeigneten Werkzeuges wird die Präzisionsanstellmutter auf das Wellengewinde aufgeschraubt, bis die gewünschte Anlage, z. B. an einem Wälzlager (7) erreicht ist. Der angewärmte, in der Bohrung konische Sicherungsschrumpfring (1) preßt den dünnwandigen Hülsenabschnitt (6) so auf die Welle (5), daß das Paßfugenspiel zwischen Hülsenbohrung (2) und Welle (5) eleminiert wird. Gleichzeitig führt dies zu einem Preßsitz zwischen Hülsenbohrung (2) und Welle (5). Hierdurch richtet sich die Hülsenbohrung (2) achsparallel und damit zwangsläufig die Planfläche (3) senkrecht zur Welle (5) aus. Der Preßsitz zwischen Hülsenbohrung (2) und Welle (5) bewirkt zusätzlich eine Sicherung gegen unbeabsichtigtes Verdrehen der Präzisionsanstellmutter.On the precision adjusting nut, consisting of the threaded section ( 4 ) and the axially adjoining sleeve section ( 6 ), the bore ( 2 ) and the flat surface ( 3 ) of the sleeve section ( 6 ) are designed perpendicularly to one another with corresponding accuracy. The bore ( 2 ) of the sleeve section ( 6 ) has a clearance to the shaft diameter ( 5 ). Using a suitable tool, the precision adjusting nut is screwed onto the shaft thread until the desired system, e.g. B. is reached on a rolling bearing ( 7 ). The heated, conical locking shrink ring ( 1 ) presses the thin-walled sleeve section ( 6 ) onto the shaft ( 5 ) in such a way that the clearance between the sleeve bore ( 2 ) and shaft ( 5 ) is eliminated. At the same time, this leads to an interference fit between the sleeve bore ( 2 ) and the shaft ( 5 ). As a result, the sleeve bore ( 2 ) is aligned axially parallel and thus inevitably the plane surface ( 3 ) perpendicular to the shaft ( 5 ). The press fit between the sleeve bore ( 2 ) and the shaft ( 5 ) additionally ensures that the precision adjusting nut is not accidentally turned.

Eine Erhöhung des Preßsitzes läßt sich durch entsprechende Werkstoffwahl erreichen. Ein beabsichtigtes Lösen wird hierdurch ebenfalls erleichtert.An increase in the press fit can be made by appropriate choice of material to reach. An intended release is also facilitated.

Die in der Erfindung erzielten Vorteile bestehen insbesondere durch die Art der Klemmung mittels eines konischen Sicherungsschrumpfringes (1). Des weiteren beschränkt sich die Anzahl der Fehlerquellen hinsichtlich des Planschlages auf die zylindrische Bohrung (2) und der hierzu gehörenden Planfläche (3) der Präzisionsanstellmutter.The advantages achieved in the invention are in particular the type of clamping by means of a conical securing shrink ring ( 1 ). Furthermore, the number of sources of error with regard to the runout is limited to the cylindrical bore ( 2 ) and the associated flat surface ( 3 ) of the precision adjusting nut.

Claims (3)

1. Präzisionsanstellmutter zur planschlagfreien Einstellung und Sicherung, z. B. von Wälzlagern in Spindeleinheiten, insbesondere bei Werkzeugmaschinenspindeln, Meßdornen und Prüfvorrichtungen und anderen hochgenauen Teilen, die auf einer Welle zu sichern sind. Bestehend aus einem auf die Welle aufschraubbaren Gewindeabschnitt und einem axial an den Gewindeabschnitt anschließenden Hülsenabschnitt mit zylindrischer Bohrung, der die Mantelfläche der Welle umgibt und dessen freie Stirnfläche an einem Lagerring oder dergleichen anliegt, dadurch gekennzeichnet, daß die äußere Mantelfläche des Hülsenabschnittes (6) konisch ausgebildet ist, daß ein konischer Sicherungsschrumpfring (1) über diesen axial anschließenden Hülsenabschnitt (6) der Präzisionsanstellmutter aufgeschrumpft wird, diesen Präzisionsteil der Stellmutter auf die Welle (5) preßt, dort ausrichtet und gleichzeitig ein unbeabsichtigtes Lösen der Stellmutter (1) verhindert.1. Precision adjusting nut for non-impact adjustment and securing, e.g. B. of rolling bearings in spindle units, especially for machine tool spindles, measuring mandrels and test devices and other highly accurate parts that are to be secured on a shaft. Consisting of a threaded section that can be screwed onto the shaft and an axially adjoining sleeve section with a cylindrical bore, which surrounds the outer surface of the shaft and the free end face of which rests on a bearing ring or the like, characterized in that the outer outer surface of the sleeve section ( 6 ) is conical is designed that a conical locking shrink ring ( 1 ) is shrunk over this axially adjoining sleeve section ( 6 ) of the precision adjusting nut, presses this precision part of the adjusting nut onto the shaft ( 5 ), aligns it and at the same time prevents unintentional loosening of the adjusting nut ( 1 ). 2. Präzisionsanstellmutter nach Patentanspruch 1, dadurch gekennzeichnet, daß zur Präzisionsbestimmung der Präzisionsanstellmutter nur zwei Flächen, die zylindrische Bohrung (2) und die Planfläche (3), in entsprechender Präzision herzustellen sind. 2. Precision adjusting nut according to claim 1, characterized in that for the precision determination of the precision adjusting nut only two surfaces, the cylindrical bore ( 2 ) and the flat surface ( 3 ), are to be produced with corresponding precision. 3. Präzisionsanstellmutter nach Patentanspruch 1, dadurch gekennzeichnet, daß der Sicherungsschrumpfring aus einem Werkstoff besteht, der einen deutlich höheren Wärmeausdehnungskoeffizienten gegenüber dem Werkstoff der Präzisionsanstellmutter aufweist, was eine Erhöhung des Schrumpfsitzes zur Folge hat und gleichzeitig ein Lösen des Schrumpfverbandes, mittels Wärme, erleichtert.3. Precision adjusting nut according to claim 1, characterized, that the safety shrink ring is made of a material that is significantly higher Coefficient of thermal expansion compared to the material of the Precision adjusting nut, which increases the Shrink fit and at the same time loosening the Shrink bandage, relieved by heat.
DE4311504A 1993-04-07 1993-04-07 Precision adjusting nut for surface impact free adjusting and locking - is used e.g. for roller bearings esp. in machine tool spindles and other parts to be secured on shafts Expired - Fee Related DE4311504C1 (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
DE4311504A DE4311504C1 (en) 1993-04-07 1993-04-07 Precision adjusting nut for surface impact free adjusting and locking - is used e.g. for roller bearings esp. in machine tool spindles and other parts to be secured on shafts

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
DE4311504A DE4311504C1 (en) 1993-04-07 1993-04-07 Precision adjusting nut for surface impact free adjusting and locking - is used e.g. for roller bearings esp. in machine tool spindles and other parts to be secured on shafts

Publications (1)

Publication Number Publication Date
DE4311504C1 true DE4311504C1 (en) 1994-06-01

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Family Applications (1)

Application Number Title Priority Date Filing Date
DE4311504A Expired - Fee Related DE4311504C1 (en) 1993-04-07 1993-04-07 Precision adjusting nut for surface impact free adjusting and locking - is used e.g. for roller bearings esp. in machine tool spindles and other parts to be secured on shafts

Country Status (1)

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DE (1) DE4311504C1 (en)

Citations (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR1234303A (en) * 1959-05-15 1960-10-17 L App Electr Ind Cheveau Improvements to the contact components of sockets, extensions and connectors
DE1813409A1 (en) * 1967-12-07 1969-07-03 Skf Svenska Kullagerfab Ab Device for maintaining the axial bearing play in roller bearing installations
DE2448160A1 (en) * 1973-10-09 1975-05-07 Raychem Corp DEVICES WITH A HEAT-RECOVERABLE COMPONENT, IN PARTICULAR PIPE COUPLINGS
DE3410868A1 (en) * 1984-03-21 1985-10-03 Thanh-Son Dipl.-Ing. 1000 Berlin Le Re-usable, positively-locking nut lock
EP0174903A2 (en) * 1984-09-14 1986-03-19 Emerson Electric Co. Shaft locking device for bearing assemblies
US4715739A (en) * 1981-02-18 1987-12-29 Ciba-Geigy Corporation Connection between a plastics quill shaft and a metal element
DE3905385C2 (en) * 1989-02-22 1991-11-07 Erich Dipl.-Ing. Geiger (Fh), 7320 Goeppingen, De

Patent Citations (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR1234303A (en) * 1959-05-15 1960-10-17 L App Electr Ind Cheveau Improvements to the contact components of sockets, extensions and connectors
DE1813409A1 (en) * 1967-12-07 1969-07-03 Skf Svenska Kullagerfab Ab Device for maintaining the axial bearing play in roller bearing installations
DE2448160A1 (en) * 1973-10-09 1975-05-07 Raychem Corp DEVICES WITH A HEAT-RECOVERABLE COMPONENT, IN PARTICULAR PIPE COUPLINGS
US4715739A (en) * 1981-02-18 1987-12-29 Ciba-Geigy Corporation Connection between a plastics quill shaft and a metal element
DE3410868A1 (en) * 1984-03-21 1985-10-03 Thanh-Son Dipl.-Ing. 1000 Berlin Le Re-usable, positively-locking nut lock
EP0174903A2 (en) * 1984-09-14 1986-03-19 Emerson Electric Co. Shaft locking device for bearing assemblies
DE3905385C2 (en) * 1989-02-22 1991-11-07 Erich Dipl.-Ing. Geiger (Fh), 7320 Goeppingen, De

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Legal Events

Date Code Title Description
8100 Publication of the examined application without publication of unexamined application
D1 Grant (no unexamined application published) patent law 81
8322 Nonbinding interest in granting licences declared
8364 No opposition during term of opposition
8339 Ceased/non-payment of the annual fee