DE28941C - Automatically moving lathe glasses for conical turning - Google Patents

Automatically moving lathe glasses for conical turning

Info

Publication number
DE28941C
DE28941C DENDAT28941D DE28941DA DE28941C DE 28941 C DE28941 C DE 28941C DE NDAT28941 D DENDAT28941 D DE NDAT28941D DE 28941D A DE28941D A DE 28941DA DE 28941 C DE28941 C DE 28941C
Authority
DE
Germany
Prior art keywords
jaws
glasses
lathe
automatically moving
workpiece
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.)
Active
Application number
DENDAT28941D
Other languages
German (de)
Original Assignee
F. PICHOT in Angers, Frankreich
Publication of DE28941C publication Critical patent/DE28941C/en
Active legal-status Critical Current

Links

Classifications

    • BPERFORMING OPERATIONS; TRANSPORTING
    • B23MACHINE TOOLS; METAL-WORKING NOT OTHERWISE PROVIDED FOR
    • B23QDETAILS, 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
    • B23Q1/00Members which are comprised in the general build-up of a form of machine, particularly relatively large fixed members
    • B23Q1/72Auxiliary arrangements; Interconnections between auxiliary tables and movable machine elements
    • B23Q1/76Steadies; Rests

Landscapes

  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Turning (AREA)

Description

KAISERLICHESIMPERIAL

PATENTAMT.PATENT OFFICE.

Fig. ι und 2 stellen zwei Seitenansichten, Fig. 3 eine Vorderansicht (theilweise perspectivisch) des Apparates dar. Derselbe besteht aus einem Träger A, dessen Fufs B auf dem Schlitten der Drehbank befestigt wird. An diesem Träger sind drei Centrirbacken CDE aus gehärtetem Stahl mit Schlitzen MNP, Fig. 2, und mittelst Stellschrauben α b c d efg h i, Fig. 2, regulirbar angebracht. Der Stahl E bildet die Fortsetzung einer Schraubenspindel E, Fig. 1, auf deren freiem Ende eine Scheibe G aufgesteckt ist, deren Durchmesser nach dem zu drehenden Konus zu berechnen ist.Fig. 1 and 2 show two side views, Fig. 3 shows a front view (partially perspective) of the apparatus. The same consists of a support A , the feet B of which is attached to the slide of the lathe. Three centrifugal jaws CDE made of hardened steel with slots MNP, Fig. 2, and adjustable screws α bcd efg hi, Fig. 2, are attached to this support. The steel E forms the continuation of a screw spindle E, FIG. 1, on the free end of which a disk G is fitted, the diameter of which is to be calculated according to the cone to be rotated.

Auf der Spindel E sitzt ferner ein Winkelrad H von 90 mm Durchmesser mit 30 Zähnen; dasselbe steht in Eingriff mit zwei Schraubenspindeln IK, deren Getriebe 45 mm Durchmesser und 15 Zähne haben; die Steigung des Gewindes dieser Spindeln gegen dasjenige der Spindel F ist 1:2. Diese Spindeln dienen zur Führung der Centrirbacken CD, und es ist demnach leicht ersichtlich, dafs die drei' Stähle sich mit ganz gleichmäfsiger Geschwindigkeit von einander entfernen oder sich einander nähern.On the spindle E there is also an angle wheel H of 90 mm diameter with 30 teeth; the same is in engagement with two screw spindles IK whose gears have 45 mm diameter and 15 teeth; the pitch of the thread of these spindles compared to that of spindle F is 1: 2. These spindles serve to guide the centrifugal jaws CD, and it is therefore easy to see that the three steels are moving away from one another or approaching one another at an entirely uniform speed.

Der erforderliche Durchmesser der Antriebsscheibe G wird wie folgt berechnet: Ein Arbeitsstück von 850 mm Länge soll einen Konus erhalten, dessen kleinster Durchmesser 50 mm, dessen gröfster 64 mm beträgt. Um den Durchmesser der Scheibe G zu finden, multiplicire jnan die abzudrehende Länge 850 mm mit der Gewindesteigung 5 mm und dividire das Product durch die Differenz der Halbmesser des Konus = 7 mm, so erhält man den Umfang der Scheibe·; diesen braucht man nur durch π zu theilen, um den Durchmesser zu erhalten.The required diameter of the drive pulley G is calculated as follows: A work piece with a length of 850 mm is to be given a cone, the smallest diameter of which is 50 mm and the largest of which is 64 mm. To find the diameter of the disk G , multiply the length to be turned off 850 mm by the thread pitch 5 mm and divide the product by the difference between the radius of the cone = 7 mm, so you get the circumference of the disk ·; one only needs to divide this by π to obtain the diameter.

Im vorliegenden Falle beträgt derselbe —In the present case, the same is -

7X3-14 = 193 mm.7X3-14 = 193 mm.

Wenn man also auf die Scheibe G einen Draht wickelt, dessen Ende hinten an der Drehbank befestigt ist, so werden sich die drei Backen genau in demselben Verhältnifs von einander entfernen, als der Schlitten vorschreitet, und zwar alle drei gleichmäfsig und dem verlangten Konus entsprechend.If, therefore, a wire is wound on disk G , the end of which is attached to the back of the lathe, the three jaws will move away from one another in exactly the same proportion as the slide advances, and all three evenly and according to the required cone.

Da die Centrirbacken C D E aus gehärtetem Stahl bestehen und, hinter dem Drehstahl hergehend, an das Arbeitsstück andrücken, so geht letzteres durch die Berührung mit den Backen vollständig geglättet aus der Drehbank hervor. Since the CDE Centrir Jaws are made of hardened steel and, following the turning tool, press against the workpiece, the latter emerges completely smooth from the lathe when it comes into contact with the jaws.

Durch diese Vorrichtung wird jede etwa vorkommende Abweichung in der Centrirung der Drehbankdocke aufgehoben, die Erschütterungen, welche durch den Angriff des Drehstahles entstehen, werden beseitigt, das Werkstück geht nach einmaligem Durchgang fertig aus der Drehbank hervor und die Glättung wird dabei gleichzeitig ausgeführt.With this device, any deviation that may occur in the centering of the Lathe dock lifted, the vibrations caused by the attack of the turning tool, are eliminated, the workpiece is finished from the lathe after a single pass and the smoothing is carried out at the same time.

Claims (1)

Patent-AnSprüche:Patent claims: i. Eine selbsttätig nachrückende Drehbank-Brille, bestehend aus den Centrirbacken CDE, deren einer durch die Bewegung des Schlittensi. Automatic lathe goggles, consisting of the CDE centrifugal jaws, one of which is caused by the movement of the slide vorgeschoben oder zurückgezogen wird und durch Uebertragung den beiden anderen Backen eine ganz gleichmäfsige, das Werkstück beständig centrirende Bewegung ertheilt.
Die Combination der durch eine Scheibe G von entsprechendem Umfang gedrehten Schraubenspindel JF mit zwei die Backen CD beherrschenden Schraubenspindeln IK, um das Werkstück hinter dem. Drehstahl, demselben folgend, dem zu drehenden Konus entsprechend centrisch einzuspannen.
is advanced or withdrawn and, by transmission, gives the other two jaws a quite even movement that constantly centers the workpiece.
The combination of the screw spindle JF rotated by a washer G of a suitable circumference with two screw spindles IK dominating the jaws CD in order to move the workpiece behind the. The turning steel, following the same, is to be clamped centrically according to the cone to be turned.
Hierzu ι Blatt Zeichnungen.For this purpose ι sheet of drawings. BERLIN. GEDRUCKT IN DER REICHSDRUCKEREI.BERLIN. PRINTED IN THE REICH PRINTING COMPANY.
DENDAT28941D Automatically moving lathe glasses for conical turning Active DE28941C (en)

Publications (1)

Publication Number Publication Date
DE28941C true DE28941C (en)

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ID=305153

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Country Link
DE (1) DE28941C (en)

Cited By (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE744430C (en) * 1940-09-10 1944-01-15 Heyligenstaedt & Comp G M B H Moving steady rest with two jaws arranged at an angle to each other to support turned parts, the diameter of which changes continuously
DE910374C (en) * 1944-03-28 1954-05-03 Messerschmitt Boelkow Blohm Turning device, especially fine turning copier for long, thin workpieces
EP0225984A2 (en) * 1985-12-19 1987-06-24 SMW Schneider & Weisshaupt GmbH Self-centring collar plate
EP0226005A2 (en) * 1985-12-19 1987-06-24 SMW Schneider & Weisshaupt GmbH Collar plate

Cited By (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE744430C (en) * 1940-09-10 1944-01-15 Heyligenstaedt & Comp G M B H Moving steady rest with two jaws arranged at an angle to each other to support turned parts, the diameter of which changes continuously
DE910374C (en) * 1944-03-28 1954-05-03 Messerschmitt Boelkow Blohm Turning device, especially fine turning copier for long, thin workpieces
EP0225984A2 (en) * 1985-12-19 1987-06-24 SMW Schneider & Weisshaupt GmbH Self-centring collar plate
EP0226005A2 (en) * 1985-12-19 1987-06-24 SMW Schneider & Weisshaupt GmbH Collar plate
EP0225984A3 (en) * 1985-12-19 1989-05-31 Smw Schneider & Weisshaupt Gmbh Self-centring collar plate
EP0226005A3 (en) * 1985-12-19 1989-06-07 SMW Schneider & Weisshaupt GmbH Collar plate

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