DE468933C - Crankshaft grinding machine with drive of both spindle heads from the ends of a common shaft that is itself driven in its center - Google Patents

Crankshaft grinding machine with drive of both spindle heads from the ends of a common shaft that is itself driven in its center

Info

Publication number
DE468933C
DE468933C DEH109194D DEH0109194D DE468933C DE 468933 C DE468933 C DE 468933C DE H109194 D DEH109194 D DE H109194D DE H0109194 D DEH0109194 D DE H0109194D DE 468933 C DE468933 C DE 468933C
Authority
DE
Germany
Prior art keywords
drive
center
common shaft
grinding machine
shaft
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
DEH109194D
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.)
EDMUND HOETZEL
Original Assignee
EDMUND HOETZEL
Publication date
Priority to DEH109194D priority Critical patent/DE468933C/en
Application granted granted Critical
Publication of DE468933C publication Critical patent/DE468933C/en
Expired legal-status Critical Current

Links

Classifications

    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B24—GRINDING; POLISHING
    • B24B—MACHINES, DEVICES, OR PROCESSES FOR GRINDING OR POLISHING; DRESSING OR CONDITIONING OF ABRADING SURFACES; FEEDING OF GRINDING, POLISHING, OR LAPPING AGENTS
    • B24B5/00—Machines or devices designed for grinding surfaces of revolution on work, including those which also grind adjacent plane surfaces; Accessories therefor
    • B24B5/36—Single-purpose machines or devices
    • B24B5/42—Single-purpose machines or devices for grinding crankshafts or crankpins

Landscapes

  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Grinding Of Cylindrical And Plane Surfaces (AREA)

Description

Kurbelwellen-Schleifmaschine mit Antrieb beider Spindelstöcke von den Enden einer selbst in ihrer Mitte angetriebenen gemeinsamen Welle aus Die Erfindung betrifft ;eine Kurbelwellen-Schleifmaschine mit Antrieb beider Spindelstöcke von den Enden einer selbst in ihrer Mitte angetriebenen gemeinsamen Welle aus.Crankshaft grinding machine with drive for both headstocks from the ends of a common shaft driven even in its center from The Invention concerns; a crankshaft grinding machine with drive of both headstocks from the ends of a common shaft driven even in its center.

Bei einer bekannten Maschine dieser Art ist der Mittenantrieb nicht ständig gewährleistet, weil das Antriebsrad der gemeinsamen Antriebswelle auf letzterer relativ verschiebbar ist. Wenn beim Schleifen die gemeinsame Antriebswelle samt den Spindelstö.cken und dem Werkstück vor der Schleifscheibe hin und her bewegt werden, so verschiebt die Antriebswelle sich innerhalb des an der seitlichen Verschiebung verhinderten Antriebsrades. Die beiderseitigen Abstände zwischen letzterem und den die Bewegung an die Spindelstöcke weitergebenden Enden der gemeinsamen Antriebswelle sind also nicht immer gleich, ändern sich vielmehr ständig. Demzufolge ergeben sich in diesen beiden Wellenteilen verschieden starken Verwindungen, die, wenn sie auch geringfügig sind, doch genügen, um einen genau synchronen Umlauf der beiden Spindelstäcke und damit ein völlig genaues Schleifen des Werkstückes auszuschließen.In a known machine of this type, the center drive is not always guaranteed because the drive wheel of the common drive shaft on the latter is relatively movable. If the common drive shaft together with the grinding moves the headstocks and the workpiece back and forth in front of the grinding wheel the drive shaft shifts within the range of the lateral shift prevented the drive wheel. The mutual distances between the latter and the the ends of the common drive shaft which transmit the movement to the headstocks are therefore not always the same, rather they change constantly. Hence arise in these two parts of the wave different degrees of twisting, which, if they are insignificant, but are sufficient for an exactly synchronous rotation of the two spindle stacks and thus exclude completely precise grinding of the workpiece.

Gemäß der Erfindung wird diesem übelstande dadurch abgeholfen, daß bei der Hinundherbewegung des Werkstückes mitsamt der Spindelstöcke und ihres gemeinsamen Antriebes, der Antrieb der gemeinsamen Welle unter Verschiebung des (vordersten) Antriebsorgans auf seiner waagerechten Antriebswelle mitwandert.According to the invention this nuisance is remedied in that during the reciprocating movement of the workpiece together with the headstocks and their common Drive, the drive of the common shaft by shifting the (foremost) Drive organ moves along on its horizontal drive shaft.

Auf der Zeichnung ist die neue Anordnung schematisch in einer beispielsweisen Ausführungsform dargestellt.In the drawing, the new arrangement is shown schematically in an exemplary manner Embodiment shown.

Die beiden Spindelstöcke c, e bzw. Klemmfutter b, d werden über Rädergetriebe lt, g von einer gemeinsamen Welle a angetrieben, die samt allen genannten Teilen in längs des Maschinenbettes i verschiebbaren Schlitten k ruht. Die dem Getriebe ä zugehörigen, auf der Welle a sitzenden Räder sind längs Keilnuten der letzteren verschiebbar, so daß auf diese Weise zwecks Bearbeitung verschieden langer Kurbelwellen der gegenseitige Abstand der beiden Spindelstöcke verändert werden kann.The two headstocks c, e or clamping chucks b, d are driven via gear trains lt, g by a common shaft a, which rests, together with all of the parts mentioned, in slides k which can be moved along the machine bed i. The wheels belonging to the gearbox and sitting on the shaft a are displaceable along the splines of the latter, so that in this way the mutual distance between the two headstocks can be changed for the purpose of machining crankshafts of different lengths.

Genau in der Mitte der Welle. a ist auf dieser fest das Antriebsrad t angebracht. Die aus der Zeichnung ,ersichtlichen, dieses Organ antreibenden Räder sind mit ihren Lagern am Schlitten k befestigt, verschieben sieh also mit diesem, so daß der ständige Antrieb des Rades f unabhängig von der Schlittenverschiebung gewährleistet ist. Die Welle m ist dabei wiederum mit einer Keilnut für die Längsverschiebung des auf ihr sitzenden Rades versehen. Sie ist ortsfest im Maschinenbett gelagert und empfängt ihren. Antrieb vom üblichen Getriebekasten.Right in the middle of the wave. a is fixed on this the drive wheel t attached. The wheels driving this organ as shown in the drawing are attached to the slide k with their bearings, so move with it, so that the constant drive of the wheel f is independent of the slide displacement is guaranteed. The shaft m is in turn with a keyway for longitudinal displacement of the bike sitting on it. It is fixed in place in the machine bed and receives her. Drive from the usual gear box.

Es ist bekannt, bei Dr.-hbänken zum Bearbeiten von Radsätzen die beiderseitigen Spindelstöcke durch eine gemeinsame Welle mit in deren Mitte verkeiltem Antriebsrad anzutreiben. Diese Welle ist aber seitlich unverschiebbar, und ebenso sind es die Mittel zum Antrieb des auf ihr sitzenden Antriebsrades. Die Einrichtung ist deshalb für Kurbelwellen-Schleifmaschinen nicht brauchbar.It is known that at Dr.-hbänken for the machining of wheelsets the two-sided Headstocks by a common shaft with a drive wheel wedged in the middle to drive. But this shaft cannot be moved laterally, and so are they Means for driving the drive wheel seated on it. The establishment is therefore not suitable for crankshaft grinding machines.

Claims (1)

PATENTANSPRUCH: Kurbelwellen-Schleifmaschine mit Antrieb beider Spindelstöcke von den Enden einer selbst in ihrer Mitte angetriebenen gemeinsamen Welle aus, dadurch gekennzeichnet, daß bei der Hinundherbewegung des Werkstückes mitsamt der Spindelstöcke (c, e) und ihres gemeinsamen Antriebes (a, f, g) der Antrieb der gemeinsamen Welle (a) unter Verschiebung des (vordersten) Antriebsorgans auf seiner waagerechten Antriebswelle (m) mitwandert.PATENT CLAIM: Crankshaft grinding machine with drive of both headstocks from the ends of a common shaft which is itself driven in its center, characterized in that during the reciprocating movement of the workpiece together with the headstocks (c, e) and their common drive (a, f, g) the drive of the common shaft (a) moves along with the displacement of the (foremost) drive element on its horizontal drive shaft (m).
DEH109194D Crankshaft grinding machine with drive of both spindle heads from the ends of a common shaft that is itself driven in its center Expired DE468933C (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
DEH109194D DE468933C (en) Crankshaft grinding machine with drive of both spindle heads from the ends of a common shaft that is itself driven in its center

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
DEH109194D DE468933C (en) Crankshaft grinding machine with drive of both spindle heads from the ends of a common shaft that is itself driven in its center

Publications (1)

Publication Number Publication Date
DE468933C true DE468933C (en) 1928-11-26

Family

ID=7170751

Family Applications (1)

Application Number Title Priority Date Filing Date
DEH109194D Expired DE468933C (en) Crankshaft grinding machine with drive of both spindle heads from the ends of a common shaft that is itself driven in its center

Country Status (1)

Country Link
DE (1) DE468933C (en)

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