WO2002024402A1 - Machine d'usinage comprenant un systeme de changement de piece a usiner - Google Patents

Machine d'usinage comprenant un systeme de changement de piece a usiner Download PDF

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Publication number
WO2002024402A1
WO2002024402A1 PCT/EP2001/011024 EP0111024W WO0224402A1 WO 2002024402 A1 WO2002024402 A1 WO 2002024402A1 EP 0111024 W EP0111024 W EP 0111024W WO 0224402 A1 WO0224402 A1 WO 0224402A1
Authority
WO
WIPO (PCT)
Prior art keywords
spindle
workpiece
machine tool
clamping table
axis
Prior art date
Application number
PCT/EP2001/011024
Other languages
German (de)
English (en)
Inventor
Johann-Ludwig Strobel
Original Assignee
Alfing Kessler Sondermaschinen Gmbh
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 Alfing Kessler Sondermaschinen Gmbh filed Critical Alfing Kessler Sondermaschinen Gmbh
Priority to AU2002214989A priority Critical patent/AU2002214989A1/en
Publication of WO2002024402A1 publication Critical patent/WO2002024402A1/fr

Links

Classifications

    • 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
    • B23Q1/64—Movable or adjustable work or tool supports characterised by the purpose of the movement
    • B23Q1/66—Worktables interchangeably movable into operating positions

Definitions

  • the invention relates to a machine tool for machining workpieces with suitable tools.
  • a machine tool regardless of whether it is numerically controlled (NC) or of conventional design, includes a device for holding and fixing the workpiece in addition to a spindle device for a suitable tool. This device is intended to ensure a secure and reliable fastening of the workpiece during the machining process and to enable the workpiece to be exchanged without great effort after the machining process has been completed.
  • NC numerically controlled
  • clamping devices for workpieces are known in the art, and several individual clamping surfaces can be provided on such a clamping device.
  • devices are known that have two clamping surfaces, so that a workpiece can be machined that is attached to one of the clamping surfaces. During the machining of this workpiece, a second workpiece can be removed from the clamping device and replaced by a workpiece to be machined subsequently. This shortens downtimes, i.e. the times when the machine is not working.
  • the individual workpieces on the various clamping surfaces of such a clamping device are eg in the Machined position or brought from the machining position by the clamping device by one. Pivot axis is rotated.
  • the individual clamping surfaces are arranged so that there is a clamping surface on both sides of the swivel axis. This ensures relatively good access to the workpieces through the tool or when unclamping or removing.
  • a machine tool with a clamping device that comprises two clamping surfaces is described in DE 40 27 895 AI.
  • the machine tool has a clamping table which can be pivoted about a pivot axis running perpendicular to the axis of rotation of the spindle.
  • the pivot axis runs essentially horizontally in the installed position of the machine tool.
  • a clamping surface for a workpiece is provided on each side of the pivot axis, so that the clamping table has a total of two such clamping surfaces.
  • CH 668 022 also describes a machine tool that has a clamping table with two clamping surfaces. Similar to the device described above, the clamping table can be pivoted about an axis which runs essentially horizontally and lies transversely to the spindle axis. Clamping surfaces are provided on both sides of the swivel axis, each of which can accommodate a workpiece.
  • the invention has for its object to provide a machine tool with a clamping table that offers the greatest possible flexibility and good accessibility when changing tools or with respect to the tools.
  • the invention is based on the idea of rotating the pivoting direction or the pivoting axis of the clamping table on the basis of the known devices, so that it runs parallel to the axis of rotation of the spindle. However, it remains essentially horizontally aligned in the installed position.
  • the working space of the spindle, the swiveling device moving on a circular path and the tool magazine usually influence each other in terms of their space requirement.
  • a cutout must be provided in the tool magazine that cannot be filled with tools. This influence is minimized by arranging the swivel axis parallel to the axis of rotation of the spindle.
  • the cutout that must be provided in the tool magazine in contrast to the solutions described above, is only defined by the working space of the spindle.
  • the movement space of the swivel device now has no influence on the area to be left out, so that it can be reduced. This also reduces the space on which no tools can be accommodated and increases the use of the magazine. More tool positions are possible on a magazine that is identical in terms of its diameter and thus space requirements.
  • the arrangement enables the spindle to be brought into the tool changing position and, at the same time, the clamping table can be rotated about its pivot axis.
  • this offers the possibility of carrying out tool changes and workpiece changes at the same time, which can save further times in which the machine is not working productively.
  • the flexibility of the arrangement of the tool magazine is greater, since the influence of the rotation of the clamping table in the path of the magazine or the spindle is reduced.
  • the tool magazine can be particularly tight be positioned on the machine tool spindle so that quick tool changes are possible.
  • the machining operations can be carried out with conventional, not particularly elongated tools, or there are no restrictions with regard to the machining depth, as would be the case if, in conventional devices, the distance between the spindle holder and the clamping table is increased in order to influence the above-mentioned factors missed.
  • the spindle can be moved in three axial directions relative to the workpiece. This makes it possible to machine the workpiece clamped on the clamping table from different sides or to carry out a wide variety of machining operations on the workpiece. In particular, this offers the possibility of also carrying out complex processing.
  • the pivoting movement of the workpieces preferably runs essentially in a plane perpendicular to the axis of rotation of the spindle. On the one hand, this ensures that there is good accessibility when exchanging the workpieces. On the other hand, the machining of the workpieces can also be carried out relatively free of disruptive components of the machine tool.
  • Both the axis of rotation of the spindle and the pivot axis of the clamping table preferably run essentially horizontally. This ensures that the entire arrangement is not exposed to unnecessary tensions and loads and ensures safe operation.
  • the pivoting movement of the workpieces is advantageously in a plane which is oriented essentially vertically.
  • the pivot axis is preferably horizontal. It ensures that the movement paths of the spindle, the magazine and the clamping table can be defined well and that mutual influences can be minimized.
  • FIG. 1 shows a front view of a machine tool according to the invention.
  • FIG. 2 shows the machine tool from FIG. 1 in a side view.
  • the machine tool comprises a tool magazine 12, which is circular disk-shaped in plan view.
  • a region 14 is cut out in order to ensure the working space for the spindle 16, that is to say to ensure that the spindle reaches all machining points on the workpiece with a tool.
  • the machine tool 10 comprises a clamping table 18.
  • This clamping table 18 is designed essentially point-symmetrically and has two clamping surfaces 20 for one workpiece each.
  • the clamping table 18 has two lever-like elements, the lever lengths on both sides of the axis of rotation 22 being of the same design.
  • the clamping surfaces 20 for the workpieces are attached in the vicinity of the free ends of the levers.
  • the clamping table can be rotated about the axis of rotation 22.
  • the axis of rotation 22 is parallel to the axis of rotation 24 of the spindle 16. Both axes run in a substantially horizontal direction, so that the rotary movement of the clamping table takes place in a vertical plane when the machine tool is set up.
  • the spindle itself can be moved both in the direction of the workpiece, ie in the left / right direction in FIG. 1, and in the vertical direction.
  • an adjustment mechanism is usually also present in the third spatial direction (direction perpendicular to the plane of the drawing in FIG. 1).
  • the entire machine tool arrangement is firmly mounted on a floor support.
  • FIG. 2 shows the machine tool from FIG. 1 in a side view.
  • the same components are identified with identical reference numbers.
  • the axes of rotation of the clamping table 18 and the axis of rotation of the spindle 16 (designations 22 and 24, respectively) run accordingly in the left / right direction in the illustration. It can be clearly seen that the magazine for the tools has a cutout 14 so that the spindle 16 can reach the workpiece 28 in a freely accessible manner. This recess 14 is reduced in comparison to conventional machine tools.
  • a workpiece 28 is fastened on one of the two clamping surfaces 20 of the clamping table. This workpiece is rotated into the machining position by rotating the clamping table 18 about the axis 22.
  • a tool is attached to the spindle 16 to machine the workpiece 28.
  • the spindle with the tool clamped thereon is moved in the up / down direction or in the horizontal direction (left / right direction in FIG. 2, direction perpendicular to the plane of the drawing in FIG. 1), the workpiece 28 being machined. So that the spindle can reach all positions of the workpiece 28 freely, a recess is provided in the magazine, which is attached close to the spindle, that is to say in the immediate vicinity thereof.
  • the spindle is brought into a tool exchange position, and another tool, which is stored in the magazine 12, is clamped onto the spindle. Processing can then be continued with the new tool.
  • the clamping table 18 essentially makes a rotation through 180 °, so that the second clamping surface, the workpiece of which has not just been machined, reaches the machining position. A second workpiece can be clamped on it so that the machining can be continued immediately.
  • a tool change can take place simultaneously by moving the spindle into the tool exchange position, while a new one can be done by rotating the clamping table 18 about the axis of rotation 22 Workpiece is brought into the machining position.
  • a workpiece that is currently in the second position, which is not the machining position, can be removed and exchanged during the machining of the other workpiece, with good accessibility for the operator being guaranteed by the arrangement of the clamping table according to the invention.
  • the spindle, clamping table and magazine can also be arranged in a compact manner, whereby in particular the distance between clamping surfaces of the clamping table and spindle or spindle holder can be kept small. This avoids the need for unnecessarily long tools. At the same time, sufficient processing depth is guaranteed. In addition, the distances are short, which has a positive effect on the processing times.
  • the essential aspect of the arrangement according to the invention is that the parallelism of the axis of rotation of the spindle and the axis of rotation of the clamping table enables a compact arrangement of the tool magazine, clamping table and spindle without having to accept any significant losses in terms of the mutual influence of the movements of these components.

Landscapes

  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Automatic Tool Replacement In Machine Tools (AREA)
  • Machine Tool Units (AREA)

Abstract

La présente invention concerne une machine-outil (10) comprenant au moins une broche (16) servant à recevoir l'outil, ainsi qu'une table de serrage (18) destinée à une pièce à usiner. Selon l'invention, la table de serrage (18) peut pivoter autour d'un axe de pivotement (22), et de chaque côté de l'axe de pivotement (22) se trouve respectivement une surface de serrage (20) destinée à la pièce à usiner. L'axe de pivotement (22) de la table de serrage (18) est disposé de sorte qu'il se trouve parallèle à l'axe de rotation (24) de la broche (16).
PCT/EP2001/011024 2000-09-25 2001-09-24 Machine d'usinage comprenant un systeme de changement de piece a usiner WO2002024402A1 (fr)

Priority Applications (1)

Application Number Priority Date Filing Date Title
AU2002214989A AU2002214989A1 (en) 2000-09-25 2001-09-24 Machine tool comprising a workpiece changing system

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
DE2000147349 DE10047349A1 (de) 2000-09-25 2000-09-25 Bearbeitungsmaschine mit Werkstückwechseleinrichtung
DE10047349.0 2000-09-25

Publications (1)

Publication Number Publication Date
WO2002024402A1 true WO2002024402A1 (fr) 2002-03-28

Family

ID=7657473

Family Applications (1)

Application Number Title Priority Date Filing Date
PCT/EP2001/011024 WO2002024402A1 (fr) 2000-09-25 2001-09-24 Machine d'usinage comprenant un systeme de changement de piece a usiner

Country Status (3)

Country Link
AU (1) AU2002214989A1 (fr)
DE (1) DE10047349A1 (fr)
WO (1) WO2002024402A1 (fr)

Citations (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB998471A (en) * 1960-08-06 1965-07-14 Ti Group Services Ltd Work supporting devices
FR2094268A5 (fr) * 1970-06-15 1972-02-04 Huard Ucf
DE4027895A1 (de) * 1990-09-03 1992-03-05 Wanderer Maschinen Gmbh Werkzeugmaschine
EP0650800A2 (fr) * 1993-10-22 1995-05-03 SCM GROUP S.p.A. Unité de travail, notamment pour le bois
EP0744244A1 (fr) * 1995-05-24 1996-11-27 Ditta Bacci Paolino Di Giuseppe Bacci Di Agostino Bacci Machine-outil pour l'usinage d'éléments allongés avec porte-pièces en porte-à-faux
DE29922141U1 (de) * 1999-01-11 2000-03-16 Pries, Horstmann & Co. Maschinenbau Gmbh & Co. Kg Zuführ- und Bearbeitungsvorrichtung für plattenförmige Werkstücke

Patent Citations (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB998471A (en) * 1960-08-06 1965-07-14 Ti Group Services Ltd Work supporting devices
FR2094268A5 (fr) * 1970-06-15 1972-02-04 Huard Ucf
DE4027895A1 (de) * 1990-09-03 1992-03-05 Wanderer Maschinen Gmbh Werkzeugmaschine
EP0650800A2 (fr) * 1993-10-22 1995-05-03 SCM GROUP S.p.A. Unité de travail, notamment pour le bois
EP0744244A1 (fr) * 1995-05-24 1996-11-27 Ditta Bacci Paolino Di Giuseppe Bacci Di Agostino Bacci Machine-outil pour l'usinage d'éléments allongés avec porte-pièces en porte-à-faux
DE29922141U1 (de) * 1999-01-11 2000-03-16 Pries, Horstmann & Co. Maschinenbau Gmbh & Co. Kg Zuführ- und Bearbeitungsvorrichtung für plattenförmige Werkstücke

Also Published As

Publication number Publication date
DE10047349A1 (de) 2002-04-11
AU2002214989A1 (en) 2002-04-02

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