EP0209634B1 - Method for shaping a work piece - Google Patents

Method for shaping a work piece Download PDF

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Publication number
EP0209634B1
EP0209634B1 EP86104574A EP86104574A EP0209634B1 EP 0209634 B1 EP0209634 B1 EP 0209634B1 EP 86104574 A EP86104574 A EP 86104574A EP 86104574 A EP86104574 A EP 86104574A EP 0209634 B1 EP0209634 B1 EP 0209634B1
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EP
European Patent Office
Prior art keywords
workpiece
grinding wheel
grinding
movements
translatory
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 - Lifetime
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EP86104574A
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German (de)
French (fr)
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EP0209634A3 (en
EP0209634A2 (en
Inventor
Georg Becker
Herbert Basilowski
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Buderus Schleiftechnik GmbH
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Buderus Schleiftechnik GmbH
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Priority to AT86104574T priority Critical patent/ATE73035T1/en
Publication of EP0209634A2 publication Critical patent/EP0209634A2/en
Publication of EP0209634A3 publication Critical patent/EP0209634A3/en
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Publication of EP0209634B1 publication Critical patent/EP0209634B1/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
    • B24B53/00—Devices or means for dressing or conditioning abrasive surfaces
    • B24B53/06—Devices or means for dressing or conditioning abrasive surfaces of profiled abrasive wheels
    • B24B53/08—Devices or means for dressing or conditioning abrasive surfaces of profiled abrasive wheels controlled by information means, e.g. patterns, templets, punched tapes or the like
    • 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
    • B24B3/02—Sharpening cutting edges, e.g. of tools; Accessories therefor, e.g. for holding the tools of milling cutters
    • B24B3/04—Sharpening cutting edges, e.g. of tools; Accessories therefor, e.g. for holding the tools of milling cutters of plain milling cutters
    • B24B3/045—Sharpening cutting edges, e.g. of tools; Accessories therefor, e.g. for holding the tools of milling cutters of plain milling cutters of milling cutters with helical cutting edges
    • 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

Definitions

  • the invention relates to a method for producing an Archimedean relief grinding curve on a workpiece, such as a milling cutter or tap.
  • DE-C-743 646 describes a grinding wheel for regrinding thread milling cutters.
  • the relief grinding curve is shown convex twice on the circumference of the grinding wheel, so that the thread profile can be ground by angular synchronism of the grinding wheel and workpiece.
  • a mechanical coupling of the grinding wheel, workpiece and dressing roller is not provided, however, and nothing is said about the type of control of the elements coupled to one another.
  • the invention is based on the task of generating a predetermined geometric shape with a complicated course, such as an Archimedean relief grinding curve on milling cutters and drills, with the highest possible machining speed with high contour accuracy and surface quality.
  • a complicated course such as an Archimedean relief grinding curve on milling cutters and drills
  • the translatory movement cycles are eliminated during the grinding process, as a result of which grinding speeds of 60 m / s and higher are made possible.
  • the use of electronic gears also enables the coupling and uncoupling of axes assigned to one another without the interdependency relationships being lost. As a result, roughing or power grinding and finishing or quality grinding can be carried out under the optimum conditions and with high accuracy.
  • the grinding wheel 1 is provided on its circumference with the relief grinding curve adapted to the workpiece 2 to be ground (tap).
  • the relief grinding curve of the grinding wheel 1 is generated by the diamond dressing roller 3.
  • the diamond dressing roller 3 is brought into the desired position in relation to the rotating grinding wheel by means of appropriate drives, the synchronous operation being ensured by an electronic control.
  • the respective stroke movement H of the dressing roller 3 corresponds to the convex relief curve desired on the circumference of the grinding wheel.
  • the relief grinding curve can be mapped once or several times on the circumference of the grinding wheel. In Fig. 1 the 2-time figure is indicated, while the tap has four relief grinding curves over its circumference.
  • the dressing roller 3 executes a lifting movement in addition to the rotor movement.
  • the grinding wheel 1 and the workpiece 2 rotate synchronously about the fixed axes of rotation 4 and 5, and the grinding wheel 1 executes a relative movement to the workpiece axis due to the convex profile of its circumference.
  • ⁇ 1 a safety area is indicated, while ⁇ 2 indicates the safety area including the grinding section and ⁇ 3 including the groove section. In the grooved section, the relief curve is returned to the starting point A S.
  • the relief grinding size H or h max can be programmed within certain values.
  • the axis positions of the diamond dressing roller 3 and grinding wheel 1 are controlled by means of a CNC and an electronic gear via the associated motors (M4 and M5 for the diamond dressing roller 3 and M8 for the grinding wheel 1) and the sensors WM5 or WM8 synchronized in a defined dependency and the grinding wheel profiled with the relief grinding curve.
  • a first step (rough grinding), the thread is now ground into the workpiece 2.
  • the relief grinding does not have to be done yet.
  • the motors M1 and M2 for workpiece movement and M8, M3 for the grinding wheel movement as well as the associated sensors WM1, WM2, WM8 and WM3 are now also in a defined relationship brought.
  • M1 and M2 When dressing the grinding wheel and grinding the workpiece, the M5 and M8 motors must also be in synchronization with M1 and M2 and the M4 motor must be activated.
  • the grinding wheel can be dressed using the diamond dressing roller after or during rough grinding.
  • the thread is finish-ground in a further operation by finish grinding with the single or multi-start grinding wheel including relief grinding.
  • the motors M2, M1, M3 and M8 and the assigned sensors are brought into a defined relationship and there is synchronization between the motors M1, M2 and M8.
  • the workpiece After finishing grinding, the workpiece is changed, and the rough grinding of the new workpiece can be carried out essentially without a previous dressing process.
  • the workpiece change takes place in a position-oriented manner in that the starting points AW for the workpiece and AS for the grinding wheel, which are drawn in in FIG. 1, are fixed with the first grinding process and form the reference basis for all dependent movements.
  • the changes in diameter of the grinding wheel due to wear and dressing are taken into account in the automation device when determining the defined dependencies of the controlled axes.

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  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Grinding-Machine Dressing And Accessory Apparatuses (AREA)
  • Grinding And Polishing Of Tertiary Curved Surfaces And Surfaces With Complex Shapes (AREA)
  • Adornments (AREA)
  • Electrical Discharge Machining, Electrochemical Machining, And Combined Machining (AREA)
  • Heat Treatment Of Articles (AREA)
  • Finish Polishing, Edge Sharpening, And Grinding By Specific Grinding Devices (AREA)

Abstract

Hitherto mechanical lever systems and cams were used to effect the necessary relative movements between the workpiece and the grinding disc. In order to attain a higher production rate at improved quality, it is proposed to use electronic means for shaping the profile of a tool. The generating profile is once or several times provided in a convex configuration on the grinding disc. The workpiece is shaped by respectively definable translatory, rotatory and angularly-dependent relative positions between the workpiece and the grinding disc.

Description

Die Erfindung betrifft ein Verfahren zum Herstellen einer archimedischen Hinterschliffkurve an einem Werkstück, wie einem Fräser oder Gewindebohrer.The invention relates to a method for producing an Archimedean relief grinding curve on a workpiece, such as a milling cutter or tap.

Um in einem Werkstück eine vorgegebene Form, wie die archimedische Hinterschliffkurve an Abwälz- und Gewindefräsern oder an Gewindebohrern zu erzeugen, werden bisher mechanische Vorrichtungen eingesetzt. Von einer Kurvenscheibe mit der auf ihrem Umfang abgebildeten Schleifkurve werden über Hebeltriebe die notwendigen Hubbewegungen des Werkstückes oder der Schleifscheibe erzeugt. Bedingt durch Kraft- und Schwingungsprobleme translatorisch bewegter Massen, sind der Arbeitsgeschwindigkeit und der Qualität bei diesen mechanischen Hebeltrieben Grenzen gesetzt. Bei der Erprobung eines mechanisch gesteuerten Hinterschliffes ergab sich beispielsweise eine Grenzleistung von 1500 Hub/min, weil dann Schwingungen und Resonanzfrequenzen auftraten, welche eine weitere Steigerung nicht zuließen. Außerdem ist die Maschinenumrüstung zur Herstellung unterschiedlicher Werkstücke sehr aufwendig.Mechanical devices have hitherto been used to produce a predetermined shape in a workpiece, such as the Archimedean relief grinding curve on hobbing and thread milling cutters or on taps. The necessary stroke movements of the workpiece or grinding wheel are generated by a cam disc with the grinding curve shown on its circumference. Due to the force and vibration problems of translationally moved masses, the working speed and quality of these mechanical lever drives are limited. When testing a mechanically controlled relief grinding, for example, there was a limit output of 1500 strokes / min because then vibrations and resonance frequencies occurred which did not allow a further increase. In addition, the machine conversion for the production of different workpieces is very complex.

In der DE-C-743 646 ist eine Schleifscheibe zum Hinterschleifen von Gewindefräsern beschrieben. Auf dem Umfang der Schleifscheibe ist die Hinterschliffkurve zweimal konvex abgebildet, sodaß durch Winkelsynchronlauf von Schleifscheibe und Werkstück das Gewindeprofil geschliffen werden kann. Eine maschinelle Kopplung von Schleifscheibe, Werkstück und Abrichtrolle ist aber nicht vorgesehen und über die Art der Steuerung der miteinander gekoppelten Elemente ist nichts ausgesagt. Heute werden aber an die Leistungsfähigkeit von Schleifeinrichtungen sehr hohe Anforderungen gestellt, welche mit mechanisch gesteuerten Einrichtungen nicht erzielt werden können, auch dann nicht,wenn man eine Schleifscheibe verwendet auf deren Umfang die Hinterschliffkurve konvex abgebildet ist.DE-C-743 646 describes a grinding wheel for regrinding thread milling cutters. The relief grinding curve is shown convex twice on the circumference of the grinding wheel, so that the thread profile can be ground by angular synchronism of the grinding wheel and workpiece. A mechanical coupling of the grinding wheel, workpiece and dressing roller is not provided, however, and nothing is said about the type of control of the elements coupled to one another. Today, however, very high demands are placed on the performance of grinding devices, which cannot be achieved with mechanically controlled devices, not even when using a grinding wheel used on the circumference of the relief grinding curve is shown convex.

Die Erfindung geht von der Aufgabe aus, eine vorgegebene geometrische Form mit kompliziertem Verlauf,wie eine archimedische Hinterschliffkurve an Fräsern und Bohreren, mit möglichst hoher Bearbeitungsgeschwindigkeit bei gleichzeitig hoher Konturgenauigkeit und Oberflächenqualität zu erzeugen.
Zur Lösung dieser Aufgabe, werden die im Patentanspruch 1 angegebenen Merkmale vorgeschlagen.The invention is based on the task of generating a predetermined geometric shape with a complicated course, such as an Archimedean relief grinding curve on milling cutters and drills, with the highest possible machining speed with high contour accuracy and surface quality.
To achieve this object, the features specified in claim 1 are proposed.

Bei dem der Erfindung zugrunde liegenden Arbeitsprinzip sind die translatorischen Bewegungszyklen während des Schleifprozesses eleminiert, wodurch Schleifgeschwindigkeiten von 60 m/s und höher ermöglicht werden. Durch den Einsatz elektronischer Getriebe ist auch das Koppeln und Entkoppeln einander zugeordneter Achsen möglich, ohne daß die Abhängigkeitsbeziehungen zueinander verloren gehen. Dadurch können das Schrupp- oder Leistungsschleifen und das Schlicht- oder Qualitätsschleifen unter de jeweils optimalen Bedingungen und mit hoher Genauigkeit durchgeführt werden.In the working principle on which the invention is based, the translatory movement cycles are eliminated during the grinding process, as a result of which grinding speeds of 60 m / s and higher are made possible. The use of electronic gears also enables the coupling and uncoupling of axes assigned to one another without the interdependency relationships being lost. As a result, roughing or power grinding and finishing or quality grinding can be carried out under the optimum conditions and with high accuracy.

Anhand der in der Zeichnung dargestellten Ausführungsbeispiele soll die Erfindung näher erläutert werden.The invention will be explained in more detail with reference to the exemplary embodiments shown in the drawing.

Es Zeigen:

Fig. 1
Prinzipdarstellung der drei elektronisch gekoppelten Achsen von Abrichtrolle, Schleifscheibe und Werkstück.
Fig. 2
Eine vergrößerte Darstellung eines Teilausschnittes eines Gewindebohrers und den zugehörigen Hinterschliffgrößen.
Fig. 3
Schematische Darstellung einer Schleifvorrichtung und der zugehörigen Steuerung.
Show it:
Fig. 1
Schematic diagram of the three electronically coupled axes of the dressing roller, grinding wheel and workpiece.
Fig. 2
An enlarged view of a partial section of a tap and the associated relief grinding sizes.
Fig. 3
Schematic representation of a grinding device and the associated control.

Die Schleifscheibe 1 ist an ihrem Umfang mit der dem zu schleifenden Werkstück 2 (Gewindebohrer) angepaßten Hinterschliffkurve versehen. Die Hinterschliffkurve der Schleifscheibe 1 wird durch die Diamant-Abrichtrolle 3 erzeugt. Hierzu wird die Diamant-Abrichtrolle 3 über entsprechende Antriebe in die jeweils gewünschte Lage zur rotierenden Schleifscheibe gebracht, wobei der Synchronlauf durch eine elektronische Steuerung sichergestellt wird. Die jeweilige Hubbewegung H der Abrichtrolle 3 entspricht dem der auf dem Schleifscheibenumfang gewünschten konvexen Hinterschliffkurve. Die Hinterschliffkurve kann auf dem Umfang der Schleifscheibe einmal oder auch mehrmals abgebildet werden. In Fig. 1 ist die 2-malige Abbildung angedeutet, während der Gewindebohrer über seinen Umfang vier Hinterschliffkurven aufweist.The grinding wheel 1 is provided on its circumference with the relief grinding curve adapted to the workpiece 2 to be ground (tap). The relief grinding curve of the grinding wheel 1 is generated by the diamond dressing roller 3. For this purpose, the diamond dressing roller 3 is brought into the desired position in relation to the rotating grinding wheel by means of appropriate drives, the synchronous operation being ensured by an electronic control. The respective stroke movement H of the dressing roller 3 corresponds to the convex relief curve desired on the circumference of the grinding wheel. The relief grinding curve can be mapped once or several times on the circumference of the grinding wheel. In Fig. 1 the 2-time figure is indicated, while the tap has four relief grinding curves over its circumference.

Während der Profilierung der Schleifscheibe 1 führt somit lediglich die Abrichtrolle 3 neben der rotorischen Bewegung eine Hubbewegung aus. Beim eigentlichen Schleifprozess dagegen, rotieren die Schleifscheibe 1 und das Werkstück 2 synchronisiert um die feststehenden Rotationsachsen 4 bzw. 5 und die Schleifscheibe 1 vollzieht aufgrund der konvexen Profilierung ihres Umfanges eine relative Bewegung zur Werkstückachse.During the profiling of the grinding wheel 1, only the dressing roller 3 executes a lifting movement in addition to the rotor movement. In contrast, during the actual grinding process, the grinding wheel 1 and the workpiece 2 rotate synchronously about the fixed axes of rotation 4 and 5, and the grinding wheel 1 executes a relative movement to the workpiece axis due to the convex profile of its circumference.

Die auf der Schleifscheibe 2x aufgebrachte Hinterschleifkurve hat die Funktion r = f (ϑ, k) wobei k die Anzahl der konvexen Hinterschleifkurven auf 360° ist (im vorliegenden Falle = 2). Mit α ₁ ist ein Sicherheitsbereich angedeutet, während α ₂ den Sicherheitsbereich einschließlich Hinterschleifabschnitt und α ₃ einschließlich des Nutenabschnittes andeutet. Im Nutenabschnitt wird die Hinterschleifkurve wieder auf den Ausgangspunkt AS zurückgeführt.The rear grinding curve applied twice on the grinding wheel has the function r = f (ϑ, k) where k is the number of convex rear grinding curves at 360 ° (in the present case = 2). With α ₁ a safety area is indicated, while α ₂ indicates the safety area including the grinding section and α ₃ including the groove section. In the grooved section, the relief curve is returned to the starting point A S.

In Fig. 2 ist in größerem Maßstab ein Kurvenverlauf und deren einzelne Abschnitte und Größen dargestellt, wie er mit dem erfindungsgemäßen Verfahren möglich ist.2 shows a curve and its individual sections and sizes on a larger scale, as is possible with the method according to the invention.

Die Hinterschliffgröße H bzw. h max sind innerhalb bestimmter Werte programmierbar.The relief grinding size H or h max can be programmed within certain values.

Anhand der schematischen Darstellung der Vorrichtung gemäß Fig. 3 wird nachfolgend der technologische Ablauf der Herstellung eines Gewindes mit Hinterschliff erläutert.3, the technological sequence for producing a thread with relief grinding is explained below.

Zunächst werden die Achslagen von Diamant-Abrichtrolle 3 und Schleifscheibe 1 mittels einer CNC-Steuerung und eines elektronischen Getriebes über die zugehörigen Motore (M4 und M5 für die Diamant-Abrichtrolle 3 sowie M8 für die Schleifscheibe 1) und die Meßwertgeber WM5 bzw. WM8 in definierte Abhängigkeit synchronisiert und die Schleifscheibe mit der Hinterschleifkurve profiliert.First, the axis positions of the diamond dressing roller 3 and grinding wheel 1 are controlled by means of a CNC and an electronic gear via the associated motors (M4 and M5 for the diamond dressing roller 3 and M8 for the grinding wheel 1) and the sensors WM5 or WM8 synchronized in a defined dependency and the grinding wheel profiled with the relief grinding curve.

In einem ersten Arbeitsgang (Schruppschleifen) wird nunmehr das Gewinde in das Werkstück 2 geschliffen. Der Hinterschliff muß dabei noch nicht erfolgen. So wie vorher die Achslagen von Diamant-Abrichtrolle und Schleifscheibe in definierte Abhängigkeit zueinander gebracht wurden, werden jetzt auch die Motore M1 und M2 für die Werkstückbewegung und M8, M3 für die Schleifscheibenbewegung sowie die zugehörigen Meßwertgeber WM1, WM2, WM8 und WM3 in definierte Abhängigkeit gebracht. Synchronisation besteht zwischen M1 und M2. Bei gleichzeitigem Abrichten der Schleifscheibe und Hinterschleifen des Werkstückes müssen auch noch die Motore M5 und M8 in Synchronisation mit M1 und M2 sein und der Motor M4 aktiviert sein. Das Abrichten der Schleifscheibe mittels der Diamant-Abrichtrolle kann nach oder auch während des Schruppschleifens durchgeführt werden.In a first step (rough grinding), the thread is now ground into the workpiece 2. The relief grinding does not have to be done yet. Just as the axis positions of the diamond dressing roller and grinding wheel were brought into a defined relationship to one another, the motors M1 and M2 for workpiece movement and M8, M3 for the grinding wheel movement as well as the associated sensors WM1, WM2, WM8 and WM3 are now also in a defined relationship brought. There is synchronization between M1 and M2. When dressing the grinding wheel and grinding the workpiece, the M5 and M8 motors must also be in synchronization with M1 and M2 and the M4 motor must be activated. The grinding wheel can be dressed using the diamond dressing roller after or during rough grinding.

Das Gewinde wird in einem weiteren Arbeitsgang durch Schlichtschleifen mit der ein- oder mehrgängigen Schleifscheibe einschließlich Hinterschliff fertiggeschliffen. Dabei sind die Motore M2, M1, M3 und M8 sowie die zugeordneten Meßwertgeber in definierte Abhängigkeit gebracht und es besteht Synchronisation zwischen den Motoren M1, M2 und M8.The thread is finish-ground in a further operation by finish grinding with the single or multi-start grinding wheel including relief grinding. The motors M2, M1, M3 and M8 and the assigned sensors are brought into a defined relationship and there is synchronization between the motors M1, M2 and M8.

Nach dem Schlichtschleifen erfolgt der Werkstückwechsel, und das Schruppschleifen des neuen Werkstückes kann im wesentlichen ohne vorangegangenen Abrichtvorgang durchgeführt werden.After finishing grinding, the workpiece is changed, and the rough grinding of the new workpiece can be carried out essentially without a previous dressing process.

Der Werkstückwechsel erfolgt lageorientiert, indem mit dem ersten Schleifprozess die in Fig. 1 eingezeichneten Ausgangspunkte AW für das Werkstück und AS für die Schleifscheibe fixiert sind und die Bezugsbasis für alle Abhängigen Bewegungen bilden. Die Durchmesseränderungen der Schleifscheibe durch Verschleiß und Abrichten wird in der Automatisierungseinrichtung bei der Bestimmung der definierten Abhängigkeiten der gesteuerten Achsen berücksichtigt.The workpiece change takes place in a position-oriented manner in that the starting points AW for the workpiece and AS for the grinding wheel, which are drawn in in FIG. 1, are fixed with the first grinding process and form the reference basis for all dependent movements. The changes in diameter of the grinding wheel due to wear and dressing are taken into account in the automation device when determining the defined dependencies of the controlled axes.

Durch ältere Vorschläge ist es bereits bekannt, mechanische Getriebe durch elektronische Getriebe zu ersetzen und eine elektronische Nachführung des Werkstückes gegenüber dem Werkzeug zu erreichen. Im Lageregelkreis des Werkstückes wird dabei ein der Drehung des Werkzeuges proportionale Größe als Sollwert vorgegeben. Gegebenenfalls werden auch noch weitere Bewegungen in weiteren Achsen des Werkzeuges additiv überlagert. Dabei soll auch die durch die physkialischen Verhältnisse bedingte Differenz zwischen momentaner Sollposition und gewünschter Istposition (Schleppabstand) durch eine errechnete repräsentative Korrekturgröße ausgeglichen werden, indem diese der Führungsgröße aufgeschaltet wird. Beim Gewindebearbeiten mehrgängiger Gewinde auf numerisch gesteuerten Werkzeugmaschinen ändert sich der Schleppabstand, wenn die Schnitte der einzelnen Gewindegänge nicht mit gleicher Geschwindigkeit durchgeführt werden. Ein Ausgleich kann gemäß einer älteren Anmeldung erfolgen, indem man den augenblicklichen Drehwinkel um einen Wert kompensiert, der sich aus dem Schleppfehler des Vorschubes und der Gewindesteigung errechnet.Older proposals have already made it known to replace mechanical gears with electronic gears and to achieve electronic tracking of the workpiece with respect to the tool. In the position control loop of the workpiece, a variable proportional to the rotation of the tool is specified as the setpoint. If necessary, other movements in other axes of the tool are also superimposed. The difference between the current target position and the desired actual position (following error) caused by the physical conditions should also be compensated for by a calculated representative correction variable by applying this to the reference variable. When machining multi-thread threads on numerically controlled machine tools, the following error changes if the cuts of the individual threads are not carried out at the same speed. According to an older application, compensation can be made by compensating the current angle of rotation by a value which is calculated from the following error of the feed and the thread pitch.

Claims (6)

  1. A method for generating an Archimedian relief grinding curve at a workpiece as, e.g., a cutter or a tap by means of a grinding wheel, on the periphery of which the relief grinding curve being convexly copied once or several times by means of a truing roller, and the profile shape of the workpiece being generated by angular synchronous running of the grinding wheel with the workpiece,
       characterized by that truing of the grinding wheel (1) and relief grinding of the workpiece (2) take place simultaneously, by that, depending on the situation of the grinding process, relative movements between the axes of workpiece (2), grinding wheel (1) and truing roller (3), and synchronization conditions are predetermined over drive motors (M1 and M2) for the workpiece movements, (M3 and M8) for the grinding wheel movements, and (M4 and M5) for the truing roller movements, resp., such that
    a) by the angular synchronous running of the grinding wheel (1) with the workpiece (2), and by the pitch-synchronous advanve movement of the longitudinal axis of the workpiece with the workpiece rotation, the grinding wheel shape is transferred to the workpiece shape,
    b) simultaneously, the copy of the convex profile shape onto the periphery of the grinding wheel (1) is performed by definedly predetermined translatory and rotary relative movements of the truing roller (3) on the grinding wheel periphery,
    c) an electronic control system securing the angular and translatory synchronous running of grinding wheel rotation, workpiece rotation and translatory movement in the given axes.
  2. A method according to claim 1,
       characterized by that one of the axes serves as guide axis for the other movements following, with different speeds, without any speed-depending drag offset.
  3. A method according to claims 1 and/or 2,
       characterized by that the starting point of the synchronous running is programmable and adjustable.
  4. A method according to one or several of claims 1 to 3,
       characterized by that the translatory proportion of the guide axis to the following axes is programmable and adjustable.
  5. A method according to one or several of claims 1 to 4,
       characterized by that the synchronous of each axis can individually be enabled or disabled, resp.
  6. A method according to one or several of claims 1 to 5,
       characterized by that the temporary cancellation of the synchronization conditions is reversible.
EP86104574A 1985-06-27 1986-04-03 Method for shaping a work piece Expired - Lifetime EP0209634B1 (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
AT86104574T ATE73035T1 (en) 1985-06-27 1986-04-03 PROCEDURE FOR PERFORMANCE PROFILING OF A WORKPIECE.

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
DE3522977 1985-06-27
DE19853522977 DE3522977A1 (en) 1985-06-27 1985-06-27 METHOD FOR PROFILE PROFILING OF A WORKPIECE

Publications (3)

Publication Number Publication Date
EP0209634A2 EP0209634A2 (en) 1987-01-28
EP0209634A3 EP0209634A3 (en) 1989-05-10
EP0209634B1 true EP0209634B1 (en) 1992-03-04

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Application Number Title Priority Date Filing Date
EP86104574A Expired - Lifetime EP0209634B1 (en) 1985-06-27 1986-04-03 Method for shaping a work piece

Country Status (5)

Country Link
US (1) US4813188A (en)
EP (1) EP0209634B1 (en)
JP (1) JPS624556A (en)
AT (1) ATE73035T1 (en)
DE (2) DE3522977A1 (en)

Cited By (1)

* Cited by examiner, † Cited by third party
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DE102013003645A1 (en) 2012-03-12 2013-09-12 Mikromat Gmbh Precision machine tool i.e. precision grinding machine, for processing workpiece, has spindle arranged such that processing of workpiece is pivotable in certain range and connection between spindle and receiver changes direction of tool

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DE3826277A1 (en) * 1987-08-04 1989-02-16 Yamazaki Mazak Corp MACHINE TOOL WITH A GRINDING FUNCTION, INCLUDING AN ELECTROEROSION APPARATUS / TREATMENT DEVICE, A GRINDING TOOL AND A COLLECTING DEVICE
IT1218510B (en) * 1987-09-11 1990-04-19 Cima MACHINE DIAMOND EQUIPMENT OF SCREW WHEELS USED IN GEAR GRINDING MACHINES
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Also Published As

Publication number Publication date
EP0209634A3 (en) 1989-05-10
DE3684055D1 (en) 1992-04-09
DE3522977A1 (en) 1987-01-08
ATE73035T1 (en) 1992-03-15
US4813188A (en) 1989-03-21
EP0209634A2 (en) 1987-01-28
JPS624556A (en) 1987-01-10

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