IP Library Granted Patent US 8,376,921
Granted Patent B2
US 8,376,921 · App. 12/320,332 · Granted Feb 19, 2013

Machine tool

Inventor: Dirk Wember (Rottweil, DE)
Assignee: Haas Schleifmaschinen GmbH
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Quick Facts
Patent No.
US 8,376,921
App. No.
12/320,332
Granted
Feb 19, 2013
Kind
B2
Abstract

A machine tool comprising a tool spindle and a workpiece clamping mechanism moveable relative to one another on a linear X-axis in a controlled manner, wherein the tool spindle can be moved in a controlled manner in relation to a machine frame on Y and Z-axes which are perpendicular to the X-axis and to each other and can be pivoted in a controlled manner around a C-axis parallel to the Z-axis, and wherein a workpiece gripper, which can be moved in common with the tool spindle, is assigned to the tool spindle, and that the tool spindle can travel with the workpiece gripper to a magazine wheel on the Y, Z and C-axes and can be aligned with recesses on the magazine wheel, movement on the X, Y, Z and C-axes effecting transfer of a workpiece between the workpiece gripper and the workpiece clamping mechanism.

Claims (11)

1. A machine tool comprising a machine frame ( 10 , 20 ), a tool spindle ( 30 ) that can be driven so as to rotate, a workpiece clamping mechanism ( 12 ) and a magazine, wherein the tool spindle ( 30 ) and the workpiece clamping mechanism ( 12 ) can be moved relative to one another on a linear X-axis in a controlled manner, and wherein the tool spindle ( 30 ) can be moved in a controlled manner in relation to machine frame ( 10 , 20 ) on Y- and Z-axes which are perpendicular to the X-axis and to each other and can be pivoted in a controlled manner around a C-axis parallel to the Z-axis, characterized in that the magazine has at least one magazine wheel ( 42 , 66 ) which can be positioned rotating around a rotational axis parallel to the Z-axis, that the magazine wheel ( 42 , 66 ) has recesses ( 58 , 76 ) for tools ( 60 ) and/or workpieces ( 62 , 64 , 78 ) arranged distributed in its circumferential direction, that a workpiece gripper ( 34 ), which can be moved in common with the tool spindle ( 30 ), is assigned to the tool spindle ( 30 ), and that the tool spindle ( 30 ) can travel with the workpiece gripper ( 34 ) to the magazine wheel ( 42 , 66 ) on the Y, Z and C-axes and can be aligned in relation to the recesses ( 58 , 76 ) so that either a tool ( 60 ) can be exchanged between the tool spindle ( 30 ) and a recess ( 58 ) of the magazine wheel ( 42 , 66 ) or a workpiece ( 62 , 64 , 78 ) can be exchanged between the workpiece gripper ( 34 ) and a recess ( 58 , 76 ) of the magazine wheel ( 42 , 66 ), wherein the movements on the X, Y, Z and C axes effect a transfer of the workpiece ( 16 , 62 , 64 , 78 ) between the workpiece gripper ( 34 ) and the workpiece clamping mechanism ( 12 ).

2. The machine tool according to claim 1 , characterized in that the Z-axis is arranged vertically and the at least one magazine wheel ( 42 , 66 ) rotates around a vertical rotational axis.

3. The machine tool according to claim 2 , characterized in that the at least one magazine wheel ( 42 , 66 ) has a segmented relief ( 54 ), which is assigned to the workspace of the machine tool during the machining operation.

4. The machine tool according to claim 1 , characterized in that the magazine has an external magazine wheel ( 42 ) and an internal magazine wheel ( 66 ) arranged coaxially therein, wherein the magazine wheels ( 42 and 66 ) can be positioned in a controlled manner independently of each other so as to rotate.

5. The machine tool according to claim 1 , characterized in that the tools ( 60 ) in the at least one magazine wheel ( 42 , 66 ) are received with tool shank directed radially inwards with respect to the magazine wheel ( 42 , 66 ) and that the tool spindle ( 30 ) dips into the interior of the at least one magazine wheel ( 42 , 66 ) and can be moved radially against the recesses ( 58 ) within the interior of the magazine wheel ( 42 , 66 ) for a tool change.

6. The machine tool according to claim 1 , characterized in that the tool spindle can be moved on the Y and the Z-axis and the workpiece clamping mechanism ( 12 ) can be moved on the X-axis.

7. The machine tool according to claim 1 , characterized in that the tool spindle ( 30 ) and the workpiece gripper ( 34 ) are mounted on a common carrier plate ( 28 ).

8. The machine tool according to claim 7 , characterized in that the carrier plate ( 28 ) is attached to a Z-carriage 26 ) which can be moved on the Z-axis and rotated around the C-axis.

9. The machine tool according to claim 7 , characterized in that the workpiece gripper ( 34 ) is mounted on the carrier plate ( 28 ) so as to pivot between a rest position and an operating position, wherein the workpiece gripper ( 34 ) is situated axially aligned in front of the tool spindle ( 30 ) in its operating position and is pivoted out of the area in front of the tool spindle ( 30 ) in its rest position.

10. The machine tool according to claim 1 , characterized in that the workpieces ( 62 ) are attached to workpiece carriers ( 64 ), which can be inserted into recesses ( 58 ) that coincide with the recesses ( 58 ) for the tools ( 60 ).

11. The machine tool according to claim 1 , characterized in that the magazine wheel ( 42 ) has a plate ( 74 ), which has radial grooves ( 56 ) as recesses for axially elongated workpieces ( 78 ).

Assignments (2)
CHANGE OF NAME Recorded Apr 14, 2023
From: HAAS SCHLEIFMASCHINEN GMBH
To: ADELBERT HAAS GMBH
Reel/Frame 063364/0848 →
ASSIGNMENT OF ASSIGNOR'S INTEREST Recorded Jan 23, 2009
From: WEMBER, DIRK
To: HAAS SCHLEIFMASCHINEN GMBH
Reel/Frame 022215/0477 →
Priority Claims (1)
DE 10 2008 005 937 · Jan 24, 2008 · national
Continuity (1)
Related Publication 20090191017A1 · Jul 30, 2009