EP0048684A2 - Device on a grinding machine for relief grinding and for grinding polygons - Google Patents

Device on a grinding machine for relief grinding and for grinding polygons Download PDF

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Publication number
EP0048684A2
EP0048684A2 EP81730091A EP81730091A EP0048684A2 EP 0048684 A2 EP0048684 A2 EP 0048684A2 EP 81730091 A EP81730091 A EP 81730091A EP 81730091 A EP81730091 A EP 81730091A EP 0048684 A2 EP0048684 A2 EP 0048684A2
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EP
European Patent Office
Prior art keywords
lever
axis
grinding
bearing body
sliding surface
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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.)
Granted
Application number
EP81730091A
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German (de)
French (fr)
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EP0048684A3 (en
EP0048684B1 (en
Inventor
Karl H. Giebmanns
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Buderus AG
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Herbert Lindner GmbH
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Priority to AT81730091T priority Critical patent/ATE13266T1/en
Publication of EP0048684A2 publication Critical patent/EP0048684A2/en
Publication of EP0048684A3 publication Critical patent/EP0048684A3/en
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    • 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
    • B24B3/00—Sharpening cutting edges, e.g. of tools; Accessories therefor, e.g. for holding the tools
    • B24B3/18—Sharpening cutting edges, e.g. of tools; Accessories therefor, e.g. for holding the tools of taps or reamers
    • B24B3/22—Relief cutting of taps or reamers

Definitions

  • the invention relates to a device for relief grinding and polygon grinding on grinding machines according to the preamble of claim 1.
  • a device for relief grinding and polygon grinding on grinding machines according to the preamble of claim 1.
  • Such a device is used in particular for machining taps and can be used quite generally with drills.
  • a device of the generic type is previously known from DE-PS-22 09 809.
  • the lever is firmly connected to the bearing body of the workpiece spindle shaft, its longitudinal axis runs exactly through the pivot axis of the bearing body and the axis of the spindle shaft is arranged at a small lever distance therefrom.
  • the lever distance can be adjusted by eccentrically mounting the spindle shaft.
  • the axis of the S pindelwelle to the longitudinal axis of the lever is a combined movement of the workpiece effected against the grinding wheel, which is composed of a motion component in the longitudinal direction of the lever and a component of motion transverse to the longitudinal axis of the lever. It is precisely this movement component transverse to the longitudinal axis of the lever that is detrimental to regrinding and polygon grinding, in particular of taps, since this causes the dimensions of the tap to be changed inadmissibly.
  • the invention is therefore based on the object of providing a device for relief grinding and polygon grinding on grinding machines of the generic type, with which, in all intermediate positions between the relief grinding movement zero and the maximum, only relief grinding movements in the longitudinal direction of the lever are carried out, and these should be precisely adjustable .
  • the sliding surface elements are expediently formed from the two halves of a cylinder piece divided longitudinally along its axis, one half of which is movably supported in the bearing shells at the free end of the lever and the other half at the housing.
  • the weird The sliding surface is at an acute angle to the vertical through the longitudinal axis of the lever. In the rest position, i.e. when carrying out a grinding movement from zero, the sliding surface is parallel to the plane that runs through the axes of the spindle shaft and the swivel bearing of the bearing body.
  • the sliding surface element fixed to the housing is expediently pivotable by means of an adjustment drive in order to be able to adjust the relief grinding movement from a value of zero to a maximum value.
  • a measuring and heating element connected to a control unit is inserted in the lever in order to be able to monitor the length of the lever and the position of the longitudinal central axis of the lever.
  • the length of the lever is monitored via its temperature, and heating of the heating element or cooling can influence the length of the lever and thus the diameter of the workpiece to be machined.
  • the position of the longitudinal central axis of the lever is monitored by a measuring element in the form of an angular position encoder.
  • the pivot axis of the bearing body is formed from a torsion shaft. This avoids the known phenomenon of incorporating the two end positions into the pivot axis in the case of conventional oscillating pivot bearings.
  • the device for relief grinding and polygon grinding on grinding machines comprises a housing 1 in which a bearing body 2 is pivotable about a shaft 3 designed as a torsion shaft and a cam shaft 5 carrying a cam 4 is rotatably mounted.
  • a workpiece spindle shaft 6 is rotatably mounted about its axis 7, which is arranged at a distance X from the axis of the torsion shaft 3.
  • the axis 7 of the workpiece spindle shaft 6 is arranged parallel to the axis 9 of a grinding wheel 10 with which a -in the spindle shaft 6 inserted workpiece, in particular a G ewindebohrer, engageable to the rear loops is.
  • tips 11 or clamping jaw chucks 12 can be used, which can be attached to the free end of the workpiece spindle shaft 6.
  • a drive gear 13 which is motor-driven in a manner not shown, is supported, which meshes with an output gear 14, which is attached to the axis 7 of the workpiece spindle shaft 6.
  • a lever 16 is arranged on the bearing body 2 in the articulation point 15, the longitudinal axis 17 of which is essentially perpendicular to the connecting line between the axis 3 of the bearing body and the spindle axis 7.
  • the lever 17 carries on its lower side a cam follower roller 18 which eitkurvenan Aunt in engagement with the L is 4.5, and on its opposite side supported on the housing 1 spring 33 which the lever about its pivot point 15 pivotally mounted 16 Constantly against the Guide curve arrangement 4.5 presses.
  • a pivoting movement of the lever 16 by means of a sliding device 19 is to be carried out in a linear movement along the longitudinal axis 17 of the Lever 16 are implemented, which acts on the bearing body 2 at a distance X to the pivot axis 3.
  • the sliding device 19 is formed from two inclined adjustable sliding surface elements 20, 21, of which the sliding surface element 20 is attached to the free end of the lever 16 within a bearing shell 22 and the sliding surface element 21 on the housing 1 by means of a further bearing shell 23.
  • This is adjustable by means of an adjustment drive 24, which is formed from a worm wheel 25 attached to the bearing shell 23 and a worm -26, which is rotatably mounted in the housing 1 on a shaft 27 and is adjustable from outside via a control unit 28.
  • the two sliding surface elements 20, 21 are formed from the two halves of a cylinder piece divided longitudinally along its axis.
  • the sliding plane 29 is perpendicular to the longitudinal axis 17 of the lever 16 when a relief grinding movement of zero value is to be carried out.
  • the sliding surface plane 29 is parallel to a plane which runs through the axes 3 and 7.
  • the sliding surface plane 29 is inclined at an acute angle ⁇ against the perpendicular through the longitudinal axis 17 of the lever 16, as is shown in FIG. 1.
  • the two sliding surface elements 20, 21 are pressed together by means of a tension spring 30, which is located between the Upper end of the bearing body 2 and a mounting pin 31 attached to the housing 1.
  • a pivoting movement applied to the lever 16 by the guide curve arrangement 4, 5 via the cam follower roller 18 is converted into a linear movement of the lever 16, the sliding surface element 20 sliding along the sliding surface element 21 set at the angle ⁇ .
  • This enables a back-grinding movement of the workpiece, in particular a tap, which is in engagement with the grinding wheel 10 and which consists exclusively of a movement in the direction of the longitudinal axis of the lever 16, the lever arm of which corresponds to the distance between the axes 3 and 7.
  • the size of the relief grinding movement can be changed by changing the angle ⁇ . Movement from the angular position shown in FIG. 1 in the clockwise direction reduces the relief value, movement in the counterclockwise direction increases the relief value.
  • a measuring and heating element 32 connected to the control unit 28 is arranged inside the lever 16 in order to monitor the length of the lever 16 and the position of the longitudinal central axis 17 of the lever 16.
  • the measuring and heating element 32 can thus influence the diameter of the work pieces during its processing by the grinding wheel 10 are effected. If the lever z. B. at an operating temperature of 60 ° C has a certain length, this can be increased continuously and extremely finely in the desired manner by heating the heating element 32 when the heating element 32 is heated. This can consist of a heating coil, for example.
  • the length can be measured, for example, using strain gauges.
  • the position of the longitudinal central axis 17 of the lever 16 can take place via angular position sensors. This enables a fine adjustment in the ⁇ range.

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  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Finish Polishing, Edge Sharpening, And Grinding By Specific Grinding Devices (AREA)
  • Constituent Portions Of Griding Lathes, Driving, Sensing And Control (AREA)
  • Grinding Of Cylindrical And Plane Surfaces (AREA)

Abstract

An arrangement for relief grinding and polygonal grinding on a grinding machine has a device for moving the workpiece spindle and workpiece towards the grinding disk linearly of the pivotable operating lever.

Description

Die Erfindung bezieht sich auf eine Vorrichtung zum Hinterschleifen und Polygonschleifen an Schleifmaschinen gemäss der Gattung des Patentanspruches 1. Eine solche Vorrichtung dient insbesondere zur Bearbeitung von Gewindebohrern und ist'ganz allgemein bei Bohrern verwendbar.The invention relates to a device for relief grinding and polygon grinding on grinding machines according to the preamble of claim 1. Such a device is used in particular for machining taps and can be used quite generally with drills.

Eine Vorrichtung der gattungsgemässen Art ist aus der DE-PS -22 09 809 vorbekannt. Bei dieser Vorrichtung ist der Hebel fest mit dem Lagerkörper der Werkstück- Spindelwelle verbunden, seine Längsachse verläuft genau durch die Schwenkachse des Lagerkörpers und die Achse der Spindelwelle ist in einem kleinen Hebelabstand hiervon angeordnet. Der Hebelabstand kann durch exzentrische Lagerung der Spindelwelle verstellt werden.A device of the generic type is previously known from DE-PS-22 09 809. In this device, the lever is firmly connected to the bearing body of the workpiece spindle shaft, its longitudinal axis runs exactly through the pivot axis of the bearing body and the axis of the spindle shaft is arranged at a small lever distance therefrom. The lever distance can be adjusted by eccentrically mounting the spindle shaft.

Bei dieser bekannten Vorrichtung wird bei senkrechtem Abstand der Spindelwelle von der Schwenkachse des Lagerkörpers beim Verschwenken des Hebels mittels der Leitkurvenanordnung eine im wesentlichen parallel zur Längsachse des Hebels gerichtete oszillierende Bewegung der Spindelwelle und damit des -Werkstückes gegen die Schleifscheibe bewirkt. Bei einer Lage der Schleifscheibenachse in der Längsachse des Hebels wird bei einer Schwenkbewegung des Hebels nur eine Bewegung der Schleifspindel und damit des Werkstückes senkrecht zur - Längsachse des Hebels bewirkt, womit keine Hinterschleif--arbeit möglich ist. Bei allen Zwischenstellungen der Achse der Spindelwelle zur Längsachse des Hebels wird eine kombinierte Bewegung des Werkstückes gegen die Schleifscheibe bewirkt, welche aus einer Bewegungskomponente in Längsrichtung des Hebels und einer Bewegungskomponente quer zur Längs--achse des Hebels besteht. Gerade diese Bewegungskomponente quer zur Längsachse des Hebels ist für das Hinterschleifen und Polygonschleifen, insbesondere von Gewindebohrern schädlich, da hierdurch die Abmessungen des Gewindebohrers unzulässig verändert werden.In this known device, when the spindle shaft is at a vertical distance from the pivot axis of the bearing body when the lever is pivoted by means of the guide curve arrangement, an oscillating movement of the spindle shaft and thus of the workpiece against the grinding wheel, essentially parallel to the longitudinal axis of the lever, is brought about. With a position of the grinding wheel axis in the longitudinal axis of the lever, only a movement of the grinding spindle and thus of the workpiece perpendicular to the longitudinal axis of the lever is caused by a pivoting movement of the lever, with which no regrinding work is possible. In all intermediate positions the axis of the S pindelwelle to the longitudinal axis of the lever is a combined movement of the workpiece effected against the grinding wheel, which is composed of a motion component in the longitudinal direction of the lever and a component of motion transverse to the longitudinal axis of the lever. It is precisely this movement component transverse to the longitudinal axis of the lever that is detrimental to regrinding and polygon grinding, in particular of taps, since this causes the dimensions of the tap to be changed inadmissibly.

Der Erfindung liegt von daher die Aufgabe zugrunde, eine Vorrichtung zum Hinterschleifen und Polygonschleifen an Schleifmaschinen der gattungsgemässen Art zu schaffen, mit welcher bei allen Zwischenstellungen zwischen der Hinterschleifbewegung Null und dem Maximum nur Hinterschleifbewegungen in Längsrichtung des Hebels ausgeführt werden, wobei diese genauestens einstellbar sein sollen.The invention is therefore based on the object of providing a device for relief grinding and polygon grinding on grinding machines of the generic type, with which, in all intermediate positions between the relief grinding movement zero and the maximum, only relief grinding movements in the longitudinal direction of the lever are carried out, and these should be precisely adjustable .

Die Lösung dieser Aufgabe ergibt sich aus den kennzeichnenden Merkmalen des Patentanspruches 1. Durch die Umsetzung der -Schwenkbewegung des Hebels in eine lineare Bewegung entlang der Längsachse des Hebels mittels einer Schiebeeinrichtung wird bewirkt, dass der in einem Abstand zur Schwenkachse am Lagerkörper angreifende Hebel ausschliesslich Hinterschleif- bewegungen in Richtung seiner Längsachse auf die Spindelwelle -und damit auf das mit der Schleifscheibe in Eingriff kommende Werkstück-ausübt. Die Schiebeeinrichtung ist dabei aus zwei schräg einstellbaren Gleitflächenelementen gebildet, von denen das eine gehäusefest abgestützt und das andere am freien Ende des Hebels angebracht ist. Dabei gibt der Einstellungswinkel ein Mass für die Hinterschleifbewegung des Hebels in Richtung seiner Längsachse. Die Gleitflächenelemente sind zweckmässigerweise aus den beiden Hälften eines entlang seiner Achse längs geteilten Zylinderstückes gebildet, dessen eine Hälfte am freien Ende des Hebels und dessen andere Hälfte am Gehäuse -jeweils in Lagerschalen beweglich abgestützt sind. Die schräg gerichtete Gleitfläche steht dabei unter einem spitzen Winkel zur Senkrechten durch die Längsachse des Hebels.In der Ruhelage, d.h. bei der Ausführung einer Hinterschleifbewegung vom Werte Null steht die Gleitflächenebene parallel zur Ebene, die durch die Achsen der Spindelwelle und des Schwenklagers des Lagerkörpers verläuft. Zweckmässigerweise ist das gehäusefeste Gleitflächenelement mittels eines Verstellantriebes schwenkbar, um die Hinterschleifbewegung von einem Werte Null auf einen maximalen Wert verstellen zu können.The solution to this problem results from the characterizing features of patent claim 1. By converting the pivoting movement of the lever into a linear movement along the longitudinal axis of the lever by means of a sliding device, the lever that acts on the bearing body at a distance from the pivot axis is exclusively H inter-grinding movements in the direction of its longitudinal axis on the spindle shaft - and thus on the workpiece coming into engagement with the grinding wheel. The sliding device is formed from two inclined sliding surface elements, one of which is supported fixed to the housing and the other is attached to the free end of the lever. The setting angle gives a measure of the rear grinding movement of the lever in the direction of its longitudinal axis. The sliding surface elements are expediently formed from the two halves of a cylinder piece divided longitudinally along its axis, one half of which is movably supported in the bearing shells at the free end of the lever and the other half at the housing. The weird The sliding surface is at an acute angle to the vertical through the longitudinal axis of the lever. In the rest position, i.e. when carrying out a grinding movement from zero, the sliding surface is parallel to the plane that runs through the axes of the spindle shaft and the swivel bearing of the bearing body. The sliding surface element fixed to the housing is expediently pivotable by means of an adjustment drive in order to be able to adjust the relief grinding movement from a value of zero to a maximum value.

-In besonders zweckmässiger Weise ist in den Hebel ein mit einer Steuereinheit verbundenes Mess- und Heizelement eingesetzt, um die Länge des Hebels und die Lage der Längsmittelachse des Hebels überwachen zu können. Die Länge des Hebels wird dabei über seine Temperatur überwacht, wobei durch Be--heizung des Heizelementes bzw. durch Kühlung ein Einfluss auf die Länge des Hebels und damit auf den Durchmesser des zu bearbeitenden Werkstückes möglich ist. Die Position der Längsmittelachse des Hebels wird durch ein Messelement in Form eines Winkellagegebers überwacht.In a particularly expedient manner, a measuring and heating element connected to a control unit is inserted in the lever in order to be able to monitor the length of the lever and the position of the longitudinal central axis of the lever. The length of the lever is monitored via its temperature, and heating of the heating element or cooling can influence the length of the lever and thus the diameter of the workpiece to be machined. The position of the longitudinal central axis of the lever is monitored by a measuring element in the form of an angular position encoder.

-Schliesslich ist in bevorzugter Ausführung die Schwenkachse des Lagerkörpers aus einer Torsionswelle gebildet. Hierdurch wird die bei üblichen oszillierenden Schwenklagern bekannte Erscheinung des Einarbeitens der beiden Endlagen in die Schwenkachse vermieden.Finally, in a preferred embodiment, the pivot axis of the bearing body is formed from a torsion shaft. This avoids the known phenomenon of incorporating the two end positions into the pivot axis in the case of conventional oscillating pivot bearings.

Weitere vorteilhafte Ausgestaltungen der Erfindung ergeben sich aus weiteren Unteransprüchen.Further advantageous embodiments of the invention result from further subclaims.

Die Erfindung ist nachfolgend anhand eines Ausführungsbeispieles näher erläutert. Es zeigen:

  • - Fig. 1 einen Querschnitt durch die Vorrichtung in einer zur Schleifscheibe parallelen Ebene und
  • Fig. 2 einen Längsschnitt durch die Vorrichtung in der Ebene der Spindelwelle und des Schwenk-- lagers gemäss der'Linie II-II in Fig. 1.
The invention is explained in more detail below using an exemplary embodiment. Show it:
  • - Fig. 1 shows a cross section through the device in a plane parallel to the grinding wheel and
  • 2 shows a longitudinal section through the device in the plane of the spindle shaft and the pivot bearing according to the line II-II in FIG. 1.

Die Vorrichtung zum Hinterschleifen und Polygonschleifen an Schleifmaschinen umfasst ein Gehäuse 1, in welchem ein Lagerkörper 2 um eine als Torsionswelle ausgebildete Welle 3 schwenkbar und eine einen Nocken 4 tragende Nockenwelle 5 drehbar gelagert sind. Im Lagerkörper 2 ist eine Werkstück- spindelwelle 6 um ihre Achse 7 drehbar gelagert, welche von der Achse der Torsionswelle 3 im Abstand X angeordnet ist. Die Achse 7 der Werkstück- Spindelwelle 6 ist parallel zur Achse 9 einer Schleifscheibe 10 angeordnet, mit welcher ein -in die Spindelwelle 6 eingesetztes Werkstück, insbesondere ein Gewindebohrer, in Eingriff zum Hinterschleifen bringbar ist. Hierzu können Spitzen 11 oder Einklemmbackenfutter 12 dienen, welche am freien Ende der Werkstück-Spindelwelle 6 anbringbar sind.The device for relief grinding and polygon grinding on grinding machines comprises a housing 1 in which a bearing body 2 is pivotable about a shaft 3 designed as a torsion shaft and a cam shaft 5 carrying a cam 4 is rotatably mounted. In the bearing body 2, a workpiece spindle shaft 6 is rotatably mounted about its axis 7, which is arranged at a distance X from the axis of the torsion shaft 3. The axis 7 of the workpiece spindle shaft 6 is arranged parallel to the axis 9 of a grinding wheel 10 with which a -in the spindle shaft 6 inserted workpiece, in particular a G ewindebohrer, engageable to the rear loops is. For this purpose, tips 11 or clamping jaw chucks 12 can be used, which can be attached to the free end of the workpiece spindle shaft 6.

Auf der Torsionswelle 3 ist ein in nicht näher dargestellter Weise motorisch antreibbares Antriebszahnrad 13 gelagert, das mit einem Abtriebszahnrad 14 kämmt, das auf der Achse 7 der Werkstück- Spindelwelle 6 angebracht ist. Hierdurch wird der Drehantrieb der Werkstückspindelwelle 6 bewirkt, und zwar unabhängig von einer möglichen Schwenkbewegung des -Lagerkörpers 2 zusammen mit der Werkstückspindelwelle 6 um die Schwenkachse 8 des Lagerkörpers 2.On the torsion shaft 3, a drive gear 13, which is motor-driven in a manner not shown, is supported, which meshes with an output gear 14, which is attached to the axis 7 of the workpiece spindle shaft 6. As a result, the rotary drive of the workpiece spindle shaft 6 is effected, specifically regardless of a possible pivoting movement of the bearing body 2 together with the workpiece spindle shaft 6 about the pivot axis 8 of the bearing body 2.

Am Lagerkörper 2 ist im Gelenkpunkt 15 ein Hebel 16 angeordnet, dessen Längsachse 17 im wesentlichen senkrecht auf der Verbindungslinie zwischen der Achse 3 des Lagerkörpers und -der Spindelachse 7 steht. Der Hebel 17 trägt auf seiner Unterseite eine Nockenfolgerolle 18, welche in Eingriff mit der Leitkurvenanordnung 4,5 steht, und auf seiner gegenüberliegenden Seite eine am Gehäuse 1 abgestützte Feder 33, welche den um seinen Gelenkpunkt 15 schwenkbeweglich gelagerten Hebel 16 -ständig gegen die Leitkurvenanordnung 4,5 drückt.A lever 16 is arranged on the bearing body 2 in the articulation point 15, the longitudinal axis 17 of which is essentially perpendicular to the connecting line between the axis 3 of the bearing body and the spindle axis 7. The lever 17 carries on its lower side a cam follower roller 18 which eitkurvenanordnung in engagement with the L is 4.5, and on its opposite side supported on the housing 1 spring 33 which the lever about its pivot point 15 pivotally mounted 16 Constantly against the Guide curve arrangement 4.5 presses.

Mittels der beschriebenen Vorrichtung soll eine Schwenkbewegung des Hebels 16 mittels einer Schiebeeinrichtung 19 in eine lineare Bewegung entlang der Längsachse 17 des Hebels 16 umgesetzt werden, der in einem Abstand X zur Schwenkachse 3 am Lagerkörper 2 angreift. Die Schiebeeinrichtung 19 ist aus zwei schräg einstellbaren Gleitflächenelementen 20, 21 gebildet, von denen das Gleitflächenelement 20 am freien Ende des Hebels 16 innerhalb einer Lagerschale 22 und das Gleitflächenelement.21 am Gehäuse.1 mittels einer weiteren Lagerschale 23 angebracht sind. Diese ist mittels eines Verstellantriebes 24 einstellbar, der aus einem an der Lagerschale 23 angebrachten Schneckenrad 25 und einer Schnecke -26 gebildet ist, die im Gehäuse 1 an einer Welle 27 drehbar gelagert und von ausserhalb über eine Steuereinheit 28 einstellbar ist. Die beiden Gleitflächenelemente 20, 21 sind aus den beiden Hälften eines entlang seiner Achse längs geteilten Zylinderstückes gebildet. Die Gleitebene 29 steht -senkrecht zur Längsachse 17 des Hebels 16, wenn eine Hinterschleifbewegung vom Wert Null auszuführen ist. In diesem Falle liegt die Gleitflächenebene 29 parallel zu einer Ebene, welche durch die Achsen 3 und 7.verläuft. Bei einer endlichen Hinterschleifbewegung steht die Gleitflächenebene 29 unter einem spitzen Winkel α geneigt gegen die Senkrechte durch die Längsachse 17 des Hebels 16, wie es in Fig. 1 dargestellt ist.By means of the device described, a pivoting movement of the lever 16 by means of a sliding device 19 is to be carried out in a linear movement along the longitudinal axis 17 of the Lever 16 are implemented, which acts on the bearing body 2 at a distance X to the pivot axis 3. The sliding device 19 is formed from two inclined adjustable sliding surface elements 20, 21, of which the sliding surface element 20 is attached to the free end of the lever 16 within a bearing shell 22 and the sliding surface element 21 on the housing 1 by means of a further bearing shell 23. This is adjustable by means of an adjustment drive 24, which is formed from a worm wheel 25 attached to the bearing shell 23 and a worm -26, which is rotatably mounted in the housing 1 on a shaft 27 and is adjustable from outside via a control unit 28. The two sliding surface elements 20, 21 are formed from the two halves of a cylinder piece divided longitudinally along its axis. The sliding plane 29 is perpendicular to the longitudinal axis 17 of the lever 16 when a relief grinding movement of zero value is to be carried out. In this case, the sliding surface plane 29 is parallel to a plane which runs through the axes 3 and 7. In the case of a finite relief grinding movement, the sliding surface plane 29 is inclined at an acute angle α against the perpendicular through the longitudinal axis 17 of the lever 16, as is shown in FIG. 1.

Die beiden Gleitflächenelemente 20, 21 werden mittels einer Zugfeder 30 aneinander gepresst, welche sich zwischen dem oberen Ende des Lagerkörpers 2 und einem am Gehäuse 1 angebrachten Befestigungsstift 31 befindet.The two sliding surface elements 20, 21 are pressed together by means of a tension spring 30, which is located between the Upper end of the bearing body 2 and a mounting pin 31 attached to the housing 1.

Mit der beschriebenen Vorrichtung wird eine durch die Leitkurvenanordnung 4, 5 über die Nockenfolgerolle 18 auf den Hebel 16 aufgebrachte Schwenkbewegung in eine lineare Bewegung des Hebels 16 umgesetzt, wobei das Gleitflächenelement 20 an dem unter dem Winkel α eingestellten Gleitflächenelement 21 entlang gleitet. Hierdurch wird eine Hinterschleifbewegung des mit der Schleifscheibe 10 in Eingriff befindlichen Werkstückes, insbesondere Gewindebohrers ermöglicht, welche ausschliesslich aus einer Bewegung in Richtung der Längsachse des Hebels 16 besteht, dessen Hebelarm dem Abstand zwischen den Achsen 3 und 7 entspricht. Eine Änderung der Grösse der Hinterschleifbewegung ist durch -Veränderung des Winkels α möglich. Eine Bewegung aus der in Fig. 1 dargestellten Winkelstellung in Uhrzeigerrichtung verkleinert den Hinterschleifwert, eine Bewegung entgegen der Uhrzeigerrichtung vergrössert den Hinterschleifwert.With the device described, a pivoting movement applied to the lever 16 by the guide curve arrangement 4, 5 via the cam follower roller 18 is converted into a linear movement of the lever 16, the sliding surface element 20 sliding along the sliding surface element 21 set at the angle α. This enables a back-grinding movement of the workpiece, in particular a tap, which is in engagement with the grinding wheel 10 and which consists exclusively of a movement in the direction of the longitudinal axis of the lever 16, the lever arm of which corresponds to the distance between the axes 3 and 7. The size of the relief grinding movement can be changed by changing the angle α. Movement from the angular position shown in FIG. 1 in the clockwise direction reduces the relief value, movement in the counterclockwise direction increases the relief value.

Innerhalb des Hebels 16 ist ein mit der Steuereinheit 28 -verbundenes Mess- und Heizelement 32 angeordnet, um die Länge des Hebels 16 und die Lage der Längsmittelachse 17 des Hebels 16 zu überwachen. Mittels des Mess- und Heizelementes 32 kann somit ein Einfluss auf den Durchmesser des Werkstückes bei seiner Bearbeitung durch die Schleifscheibe 10 bewirkt werden. Wenn der Hebel z. B. bei einer Betriebstemperatur von 60° C eine bestimmte Länge hat, so kann diese durch Beheizung des Heizelementes 32 stufenlos und äusserst fein in gewünschter Weise vergrössert werden, wenn das Heizelement 32 beheizt wird. Dieses kann beispielsweise aus einer Heizspirale bestehen. Die Längenmessung kann beispielsweise über Dehnungsmeßstreifen erfolgen. Die Lage der Längsmittelachse 17 des Hebels 16 kann über Winkellagengeber erfolgen. -Hierdurch kann eine Feinstverstellung im µ - Bereich ermöglicht werden.A measuring and heating element 32 connected to the control unit 28 is arranged inside the lever 16 in order to monitor the length of the lever 16 and the position of the longitudinal central axis 17 of the lever 16. The measuring and heating element 32 can thus influence the diameter of the work pieces during its processing by the grinding wheel 10 are effected. If the lever z. B. at an operating temperature of 60 ° C has a certain length, this can be increased continuously and extremely finely in the desired manner by heating the heating element 32 when the heating element 32 is heated. This can consist of a heating coil, for example. The length can be measured, for example, using strain gauges. The position of the longitudinal central axis 17 of the lever 16 can take place via angular position sensors. This enables a fine adjustment in the µ range.

Claims (10)

1. Vorrichtung zum Hinterschleifen und Polygonschleifen an Schleifmaschinen, mit einer in einem um eine zur Schleifscheibenachse parallele Achse schwenkbar gelagerten Lager--körper angeordneten Werkstückspindelwelle und mit einem am Lagerkörper angreifenden Hebel, der zur Steuerung der oszilierenden Bewegung des Werkstücks gegen die Schleifscheibe durch eine Leitkurvenanordnung betätigbar ist, dadurch gekennzeichnet, dass eine Schwenkbewegung des -Hebels (16) mittels einer Schiebeeinrichtung (19) in eine lineare Bewegung des Hebels (16) entlang seiner Längsachse (17) umgesetzt wird, wobei der Hebel (16) in einem Abstand(X)zur Schwenkachse (3) des Lagerkörpers (2) an diesem angreift.1.Device for regrinding and polygon grinding on grinding machines, with a workpiece spindle shaft mounted in a bearing body pivotable about an axis parallel to the grinding wheel axis and with a lever acting on the bearing body which controls the oscillating movement of the workpiece against the grinding wheel by means of a guide curve arrangement can be actuated, characterized in that a pivoting movement of the lever (16) is converted by means of a sliding device (19) into a linear movement of the lever (16) along its longitudinal axis (17), the lever (16) being at a distance (X ) to the pivot axis (3) of the bearing body (2) acts on it. 2. Vorrichtung nach Anspruch 1, dadurch gekennzeichnet, dass die Schiebeeinrichtung (19) aus zwei einstellbaren Gleitflächenelementen (20,21) gebildet ist, von denen ein Gleitflächenelement (21) am Gehäuse (1) und das andere Gleit-' flächenelement (20) am freien Ende des Hebels (16) angebracht sind.2. Device according to claim 1, characterized in that the sliding device (19) is formed from two adjustable sliding surface elements (20, 21), of which one sliding surface element (21) on the housing (1) and the other sliding 'surface element (20) are attached to the free end of the lever (16). 3. Vorrichtung nach Anspruch 2, dadurch gekennzeichnet, dass die Gleitflächenelemente (20,21) die beiden Hälften eines entlang seiner Achse längs geteilten Zylinderstücks -bilden, wobei die beiden Gleitflächenelemente (20,21) am freien Ende des Hebels '(16) bzw. am Gehäuse (1) in Lagerschalen (22 bzw. 23) abgestützt sind.3. Device according to claim 2, characterized in that the sliding surface elements (20, 21) form the two halves of a cylinder piece which is longitudinally divided along its axis, the two sliding surface elements (20, 21) at the free end of the lever '(16) or are supported on the housing (1) in bearing shells (22 or 23). 4. Vorrichtung nach Anspruch 2 oder 3 , dadurch gekennzeichnet, dass das gehäuseseitige Gleitflächenelement (21) mittels -eines Verstellantriebs 24 verschwenkbar ist .4. Apparatus according to claim 2 or 3, characterized in that the sliding surface element (21) on the housing side can be pivoted by means of an adjusting drive 24. 5. Vorrichtung nach einem der Ansprüche 2 bis 4, dadurch gekennzeichnet, dass zwischen dem Lagerkörper(2)und dem Gehäuse (1) eine die beiden Gleitflächenelemente (20,21) gegeneinander re ende Zugfeder (30) angeordnet ist.5. Device according to one of claims 2 to 4, characterized in that between the bearing body (2) and the housing (1) one of the two sliding surface elements (20,21) against each other re ending spring (30) is arranged. 1-6. Vorrichtung nach einem der vorangegangenen Ansprüche, dadurch gekennzeichnet, dass der am Lagerkörper (2) im Gelenkpunkt (15) schwenkbeweglich angelenkte Hebel (16) auf einer Seite mit einer im Eingriff mit der Leitkurvenanordnung (4,5) stehenden Nockenfolgerolle (18) und auf der gegenüberliegenden Seite mit einer am Gehäuse (1) abgestützen Feder (33) versehen ist. 1- 6. Device according to one of the preceding claims, characterized in that the on the bearing body (2) in The articulation point (15) has a pivotably articulated lever (16) on one side with a cam follower roller (18) which is in engagement with the guide cam arrangement (4, 5) and on the opposite side with a spring (33) supported on the housing (1). 7. Vorrichtung nach einem der vorangegangenen Ansprüche, dadurch gekennzeichnet, dass die Verlängerung der Längsachse (17) des Hebels (16) durch die Achse (7) der Spindelwelle (6) verläuft und senkrecht zur Verbindungslinie zwischen der Schwenkachse (3) des Lagerkörpers (2) und der Achse (7) der Spindelwelle (6) steht, welche in einem Abstand (X) voneinander angeordnet sind.7. Device according to one of the preceding claims, characterized in that the extension of the longitudinal axis (17) of the lever (16) through the axis (7) of the spindle shaft (6) and perpendicular to the connecting line between the pivot axis (3) of the bearing body ( 2) and the axis (7) of the spindle shaft (6), which are arranged at a distance (X) from each other. 8. Vorrichtung nach einem der vorangegangenen Ansprüche, dadurch gekennzeichnet, dass in den Hebel (16) ein mit einer -Steuereinheit (28) verbundenes Mess- und Heizlement (32) eingesetzt ist, um die Länge des Hebels (16) und die Lage der Längsmittelachse (17) des Hebels (16) zu überwachen.8. Device according to one of the preceding claims, characterized in that in the lever (16) with a control unit (28) connected measuring and heating element (32) is used to determine the length of the lever (16) and the position of the Monitor the central longitudinal axis (17) of the lever (16). 9. Vorrichtung nach einem der vorangegangenen Ansprüche, dadurch gekennzeichnet, dass die Schwenkachse (3) des Lagerkörpers (2) aus einer Torsionswelle gebildet ist.9. Device according to one of the preceding claims, characterized in that the pivot axis (3) of the bearing body (2) is formed from a torsion shaft. 10. Vorrichtung nach einem der vorangegangenen Ansprüche, dadurch gekennzeichnet, dass auf der Schwenkachse (3) des Lagerkörpers (2) ein Antriebszahnrad (13) für ein auf der Achse (17) der Spindelwelle (6) angebrachtes Abtriebszahn--rad (14) angeordnet ist.10. Device according to one of the preceding claims, characterized in that on the pivot axis (3) of the bearing body (2) a drive gear (13) for an on the axis (17) of the spindle shaft (6) attached output gear (14) is arranged.
EP81730091A 1980-09-23 1981-09-16 Device on a grinding machine for relief grinding and for grinding polygons Expired EP0048684B1 (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
AT81730091T ATE13266T1 (en) 1980-09-23 1981-09-16 DEVICE FOR BACK GRINDING AND POLYGON GRINDING ON GRINDING MACHINES.

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
DE3036153 1980-09-23
DE3036153A DE3036153C2 (en) 1980-09-23 1980-09-23 Device for relief grinding and polygon grinding on grinding machines

Publications (3)

Publication Number Publication Date
EP0048684A2 true EP0048684A2 (en) 1982-03-31
EP0048684A3 EP0048684A3 (en) 1983-04-27
EP0048684B1 EP0048684B1 (en) 1985-05-15

Family

ID=6112823

Family Applications (1)

Application Number Title Priority Date Filing Date
EP81730091A Expired EP0048684B1 (en) 1980-09-23 1981-09-16 Device on a grinding machine for relief grinding and for grinding polygons

Country Status (5)

Country Link
US (1) US4587767A (en)
EP (1) EP0048684B1 (en)
JP (1) JPS5783349A (en)
AT (1) ATE13266T1 (en)
DE (2) DE3036153C2 (en)

Cited By (3)

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Publication number Priority date Publication date Assignee Title
US6525237B1 (en) * 1999-02-19 2003-02-25 Her Majesty The Queen As Represented By The Minister Of National Defence Of Her Majesty's Canadian Government Broad spectrum decontamination formulation and method of use
CN102294625A (en) * 2011-09-02 2011-12-28 马鞍山方圆回转支承股份有限公司 Screw tap grinding device
CN114986333A (en) * 2022-06-07 2022-09-02 上海航天设备制造总厂有限公司 Automatic rotation indexing mechanism for box body with complex structure and using method thereof

Families Citing this family (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US5305555A (en) * 1989-05-31 1994-04-26 Minnesota Mining And Manufacturing Company Belt grinding assembly having pivoting means
US4976070A (en) * 1989-09-12 1990-12-11 Anthony Palazzola Adjustable cam
CN105014512B (en) * 2015-08-03 2017-03-22 江苏捷帝机器人股份有限公司 Robot joint shaft grinding device
CN105415107B (en) * 2015-12-24 2017-10-27 成都茵普精密机械有限公司 A kind of cam relief grinding mechanism based on screw-tap threaded grinding machine
CN114918793A (en) * 2022-07-22 2022-08-19 徐州景澜新材料科技有限公司 A grinding device for artificial diamond production

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GB1228585A (en) * 1967-04-18 1971-04-15
DE2209809A1 (en) * 1972-03-01 1973-09-13 Erwin Junker BACK GRINDING DEVICE FOR TAP GRINDING MACHINES AND POLYGON GRINDING
FR2241382A1 (en) * 1973-08-24 1975-03-21 Gleason Works
DE2442384A1 (en) * 1973-09-17 1975-03-27 Reishauer Ag THREAD GRINDING MACHINE WITH DEVICE FOR RE-GRINDING THE THREAD ON TAPS AND INTERNAL THREAD FORMERS

Cited By (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US6525237B1 (en) * 1999-02-19 2003-02-25 Her Majesty The Queen As Represented By The Minister Of National Defence Of Her Majesty's Canadian Government Broad spectrum decontamination formulation and method of use
CN102294625A (en) * 2011-09-02 2011-12-28 马鞍山方圆回转支承股份有限公司 Screw tap grinding device
CN114986333A (en) * 2022-06-07 2022-09-02 上海航天设备制造总厂有限公司 Automatic rotation indexing mechanism for box body with complex structure and using method thereof
CN114986333B (en) * 2022-06-07 2023-08-15 上海航天设备制造总厂有限公司 Automatic rotary indexing mechanism for box body with complex structure and use method of automatic rotary indexing mechanism

Also Published As

Publication number Publication date
EP0048684A3 (en) 1983-04-27
JPH0113993B2 (en) 1989-03-09
DE3170515D1 (en) 1985-06-20
US4587767A (en) 1986-05-13
EP0048684B1 (en) 1985-05-15
JPS5783349A (en) 1982-05-25
DE3036153C2 (en) 1985-06-27
DE3036153A1 (en) 1982-04-08
ATE13266T1 (en) 1985-06-15

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