DE29905598U1 - Machine tool with freely movable workpiece - Google Patents

Machine tool with freely movable workpiece

Info

Publication number
DE29905598U1
DE29905598U1 DE29905598U DE29905598U DE29905598U1 DE 29905598 U1 DE29905598 U1 DE 29905598U1 DE 29905598 U DE29905598 U DE 29905598U DE 29905598 U DE29905598 U DE 29905598U DE 29905598 U1 DE29905598 U1 DE 29905598U1
Authority
DE
Germany
Prior art keywords
spindle
workpiece
rod kinematics
kinematics
tool
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
Application number
DE29905598U
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.)
SCHEUERLE MARK
Original Assignee
SCHEUERLE MARK
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 SCHEUERLE MARK filed Critical SCHEUERLE MARK
Priority to DE29905598U priority Critical patent/DE29905598U1/en
Publication of DE29905598U1 publication Critical patent/DE29905598U1/en
Anticipated expiration legal-status Critical
Expired - Lifetime legal-status Critical Current

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
    • B23Q3/00—Devices holding, supporting, or positioning work or tools, of a kind normally removable from the machine
    • B23Q3/155—Arrangements for automatic insertion or removal of tools, e.g. combined with manual handling
    • B23Q3/1552—Arrangements for automatic insertion or removal of tools, e.g. combined with manual handling parts of devices for automatically inserting or removing tools
    • B23Q3/15526—Storage devices; Drive mechanisms therefor
    • 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
    • B23Q1/44—Movable or adjustable work or tool supports using particular mechanisms
    • B23Q1/50—Movable or adjustable work or tool supports using particular mechanisms with rotating pairs only, the rotating pairs being the first two elements of the mechanism
    • B23Q1/54—Movable or adjustable work or tool supports using particular mechanisms with rotating pairs only, the rotating pairs being the first two elements of the mechanism two rotating pairs only
    • B23Q1/545—Movable or adjustable work or tool supports using particular mechanisms with rotating pairs only, the rotating pairs being the first two elements of the mechanism two rotating pairs only comprising spherical surfaces
    • B23Q1/5462—Movable or adjustable work or tool supports using particular mechanisms with rotating pairs only, the rotating pairs being the first two elements of the mechanism two rotating pairs only comprising spherical surfaces with one supplementary sliding pair
    • 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
    • B23Q3/00—Devices holding, supporting, or positioning work or tools, of a kind normally removable from the machine
    • B23Q3/155—Arrangements for automatic insertion or removal of tools, e.g. combined with manual handling
    • B23Q3/1556—Arrangements for automatic insertion or removal of tools, e.g. combined with manual handling of non-rotary tools
    • B23Q3/15573—Arrangements for automatic insertion or removal of tools, e.g. combined with manual handling of non-rotary tools the tool being taken from a storage device and transferred to a tool holder by means of transfer devices
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B25—HAND TOOLS; PORTABLE POWER-DRIVEN TOOLS; MANIPULATORS
    • B25J—MANIPULATORS; CHAMBERS PROVIDED WITH MANIPULATION DEVICES
    • B25J17/00—Joints
    • B25J17/02—Wrist joints
    • B25J17/0208—Compliance devices
    • B25J17/0216—Compliance devices comprising a stewart mechanism

Landscapes

  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Robotics (AREA)
  • Automatic Tool Replacement In Machine Tools (AREA)
  • Feeding Of Workpieces (AREA)

Description

• ··

BeschreibungDescription

Werkzeugmaschine zum Bohren und Fräsen mit feststehender Spindel (3) mit automatischem Werkzeugwechsel (5) und durch eine Stabkinematik (13) (Hexapod oder Tripod) oder einen Roboter geführtem Werkstück (7).Machine tool for drilling and milling with a fixed spindle (3) with automatic tool change (5) and a workpiece (7) guided by a rod kinematics (13) (hexapod or tripod) or a robot.

Stand der Technik:State of the art:

Werkzeugmaschinen zum Bohren und Fräsen üblicher Bauart bewegen mindestens eine Achse mit der Spindel. Die Werkstück/Vorrichtungseihheit befindet sich auf einem Maschinentisch.Machine tools for drilling and milling of the usual design move at least one axis with the spindle. The workpiece/fixture unit is located on a machine table.

Dies bedeutet, um ausreichende Steifigkeit zu gewährleisten müssen verhältnismäßig hohe Massen bewegt werden, was diese Maschinen in ihrer Dynamik einschränkt.This means that in order to ensure sufficient rigidity, relatively high masses must be moved, which limits the dynamics of these machines.

Werkstücke müssen auf herkömmlichen Maschinen von Hand oder mit Robotern in die Vorrichtung beladen werden. Dies bedeutet hohe Kosten und Zeitverluste.Workpieces must be loaded into the fixture by hand or with robots on conventional machines. This means high costs and loss of time.

Diese Probleme werden mit der in den Schutzansprüchen ausgeführten Maschinenauslegung wie folgt gelöst:These problems are solved with the machine design set out in the protection claims as follows:

- Durch die geringen bewegten Massen der Stabkinematik (13) ist bei ausreichender Steifigkeit und Genauigkeit eine sehr hohe Achsdynamik möglich, d.h. Nebenzeiten durch Achsbewegungen werden reduziert.- Due to the low moving masses of the rod kinematics (13), very high axis dynamics are possible with sufficient rigidity and accuracy, i.e. idle times due to axis movements are reduced.

- Bei Einsatz von 2 Spindeln, jeweils mit automatischem Werkzeugwechsel, reduziert sich die Span-zu-Span-Zeit auf die Positionierzeit von Spindel eins (3) zu Spindel zwei (4). Die jeweils nicht im Einsatz befindliche Spindel kann während der Bearbeitung das Werkzeug wechseln und auf Drehzahl beschleunigen. Die Nebenzeiten durch Werkzeugwechsel werden somit erheblich reduziert.- When using 2 spindles, each with automatic tool change, the chip-to-chip time is reduced to the positioning time from spindle one (3) to spindle two (4). The spindle not in use can change the tool during machining and accelerate to speed. The idle times caused by tool changes are thus significantly reduced.

Das frei bewegliche Werkstück (7) auf der Stabkinematik (13) erlaubt das freie Ablegen und Aufnehmen des Werkstücks an beliebiger Stelle des zur Verfügung stehenden Bewegungsraumes.The freely movable workpiece (7) on the rod kinematics (13) allows the workpiece to be freely placed and picked up at any location within the available movement space.

Ohne Zuhilfenahme von Einlegepersonal oder Werkstückhandlinggeräten können Werkstücke direkt von einem Werkstückträger (8) (9) abgenommen oder aufgelegt werden.Workpieces can be removed or placed directly from a workpiece carrier (8) (9) without the assistance of loading personnel or workpiece handling equipment.

Ein automatischer Be- und Entladevorgang ist so ohne zusätzliche Kosten für aufwendige Handlinggeräte möglich.An automatic loading and unloading process is thus possible without additional costs for complex handling equipment.

Werden mehrere solcher Maschinen nebeneinander, gegenüber oder in einer Gruppe aufgestellt, so kann ein Werkstück von Maschine zu Maschine ohne zusätzliche Fördereinrichtungen weiter transportiert und bearbeitet werden.If several such machines are set up next to each other, opposite each other or in a group, a workpiece can be transported and processed from machine to machine without additional conveyor systems.

Claims (3)

1. Werkzeugmaschine zum Bohren und Fräsen mit feststehender Spindel (3) und Spindelkasten (1) mit automatischem Werkzeugwechsel (5) und durch eine Stabkinematik (13) (Hexapod oder Tripod) oder einen Roboter geführtem Werkstück (7) dadurch gekennzeichnet,
das die in Rotation versetzte, angetriebene Spindel (3) während der Bearbeitung feststeht, und alle erforderlichen räumlichen Bewegungen vom Werkstück (7) ausgeführt werden.
Das Werkstück (7) ist hierbei in einer Vorrichtung (10) gespannt, die mit einer als Stabkinematik (13) ausgeführten Positioniereinrichtung fest verbunden ist. Anstelle der Stabkinematik kann auch ein Roboter eingesetzt werden. 1. Machine tool for drilling and milling with a fixed spindle ( 3 ) and headstock ( 1 ) with automatic tool change ( 5 ) and a workpiece ( 7 ) guided by a rod kinematics ( 13 ) (hexapod or tripod) or a robot, characterized in that
that the rotating, driven spindle ( 3 ) remains stationary during machining and all necessary spatial movements are carried out by the workpiece ( 7 ).
The workpiece ( 7 ) is clamped in a device ( 10 ) which is firmly connected to a positioning device designed as a rod kinematics ( 13 ). A robot can also be used instead of the rod kinematics. 2. Spindelausführung nach Schutzanspruch 1 dadurch gekennzeichnet, daß zur Verkürzung der Werkzeugwechselzeit ein zweiter Spindelkasten (2) mit Werkzeugwechsler (6) eingesetzt wird, zeitgleich zur Bearbeitung durch Spindel 1 (3) wird dann der Werkzeugwechsel durchgeführt und auf Drehzahl beschleunigt. (Variante zu einer Spindel)
um den automatischen Werkzeugwechsel möglichst einfach zu gestalten, kann die Spindel sich in einer Achse bewegen. (Variante zu fester Spindel)
um uneingeschränkt alle Winkellagen zu erreichen, kann der Spindelkasten (1) (2) drehbar und/oder schwenkbar ausgeführt sein (Variante zu fester Spindel). 2. Spindle design according to claim 1, characterized in that a second spindle box ( 2 ) with a tool changer ( 6 ) is used to shorten the tool change time, and the tool change is then carried out and accelerated to speed at the same time as machining by spindle 1 ( 3 ). (Variant to one spindle)
To make automatic tool changing as easy as possible, the spindle can move in one axis. (Variant to fixed spindle)
In order to achieve all angular positions without restriction, the headstock ( 1 ) ( 2 ) can be designed to be rotatable and/or pivotable (variant to fixed spindle). 3. Stabkinematik Ausführung nach Schutzanspruch 1 dadurch gekennzeichnet, daß die Stabkinematik (13) zur freien Positionierung des Werkstücks im Arbeitsraum der Werkzeugmaschine und zur Ausführung des Arbeitsvorschubes eingesetzt wird.
Die Stabkinematik muß mit der Vorrichtung (10) fest verbunden sein um die notwendige Steifigkeit zu gewährleisten. Sie muß an einem entsprechend steifen Rahmen (12) montiert sein.
Diese Anordnung der Vorrichtung (10) ermöglicht insbesondere ein automatisches Be- und Entladen der Werkstücke von feststehenden Werkstückträgern oder Zuführbändern (8) bzw. Abführbändern (9) in die Vorrichtung.
Man kann dies auch als Pick-Up-Werkstückwechsel bezeichnen.
Die Werkstückträger (8) (9) müssen sich hierbei im Bewegungsbereich der Stabkinematik befinden.
Die Vorrichtung (10) kann alternativ drehbar um eine Achse (11) gelagert sein, um Rundumbearbeitung zu ermöglichen.
Anstelle der Stabkinematik kann prinzipiell auch ein Roboter verwendet werden. 3. Rod kinematics design according to protection claim 1, characterized in that the rod kinematics ( 13 ) is used for the free positioning of the workpiece in the working space of the machine tool and for carrying out the working feed.
The rod kinematics must be firmly connected to the device ( 10 ) in order to ensure the necessary rigidity. It must be mounted on a suitably rigid frame ( 12 ).
This arrangement of the device ( 10 ) enables in particular an automatic loading and unloading of the workpieces from fixed workpiece carriers or feed belts ( 8 ) or discharge belts ( 9 ) into the device.
This can also be called pick-up workpiece change.
The workpiece carriers ( 8 ) ( 9 ) must be located within the movement range of the rod kinematics.
The device ( 10 ) can alternatively be mounted so as to be rotatable about an axis ( 11 ) in order to enable all-round processing.
In principle, a robot can also be used instead of the rod kinematics.
DE29905598U 1999-03-26 1999-03-26 Machine tool with freely movable workpiece Expired - Lifetime DE29905598U1 (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
DE29905598U DE29905598U1 (en) 1999-03-26 1999-03-26 Machine tool with freely movable workpiece

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
DE29905598U DE29905598U1 (en) 1999-03-26 1999-03-26 Machine tool with freely movable workpiece

Publications (1)

Publication Number Publication Date
DE29905598U1 true DE29905598U1 (en) 1999-09-23

Family

ID=8071459

Family Applications (1)

Application Number Title Priority Date Filing Date
DE29905598U Expired - Lifetime DE29905598U1 (en) 1999-03-26 1999-03-26 Machine tool with freely movable workpiece

Country Status (1)

Country Link
DE (1) DE29905598U1 (en)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE10343150A1 (en) * 2003-09-18 2005-05-12 Dat Automatisierungstechnik Gm Device for force-regulated processing of workpieces using rotating tools comprises a platform that can be displaced in the pressure direction of the tool by a force applied during processing of the workpiece with the tool

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE10343150A1 (en) * 2003-09-18 2005-05-12 Dat Automatisierungstechnik Gm Device for force-regulated processing of workpieces using rotating tools comprises a platform that can be displaced in the pressure direction of the tool by a force applied during processing of the workpiece with the tool

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Legal Events

Date Code Title Description
R086 Non-binding declaration of licensing interest
R207 Utility model specification

Effective date: 19991028

R156 Lapse of ip right after 3 years

Effective date: 20021001