# US 7,462,144 B2 · Machine tool

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- Number: US 7,462,144 B2
- Document ID: US7462144B2
- Status: Granted
- Kind: B2
- Application number: 11/890,474
- Filed: 2007-08-07
- Published: 2008-02-14
- Granted: 2008-12-09
- Earliest claimed: 2006-08-09
- Assignees: Haas Schleifmaschinen GmbH
- Inventors: Hans-Dieter Braun
- Web page: https://patentgrep.com/patent/US7462144B2

## CPC

- B23Q 3/15706: {a single tool being inserted in a spindle directly from a storage device, i.e. without using transfer devices (B23Q3/15786 takes precedence)}
- B23Q 3/15733: {the axis of the stored tools being arranged in the rotating or circulating plane of the storage means}
- B23Q 2220/008: Rotatable tool holders coupled in parallel to a non rotating accessory
- Y10T 483/115: Guard
- Y10T 483/1717: Plural matrices
- Y10T 483/174: Abrading wheel
- Y10T 483/1793: Spindle comprises tool changer
- Y10T 483/1795: Matrix indexes selected tool to transfer position
- Y10T 483/1845: Plural matrices
- Y10T 483/1882: Rotary disc
- B23Q: DETAILS, COMPONENTS, OR ACCESSORIES FOR MACHINE TOOLS, e.g. ARRANGEMENTS FOR COPYING OR CONTROLLING (tools of the kind used in lathes or boring machines B23B27/00); 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
- Y10T: TECHNICAL SUBJECTS COVERED BY FORMER US CLASSIFICATION

## Abstract

A tool magazine is located adjacent to the work space of a machine tool. The tool magazine has a magazine wheel (34) that is rotatable in a controlled manner about a vertical axis and exhibits tool holders (50) on its periphery, in which tools can be held with the tool axis directed radially with respect to the magazine wheel (34) and can be removed with their shafts directed toward the inside of the magazine wheel (34). The horizontally aligned tool spindle is displaceable along the horizontal Y-axis and along the vertical Z-axis and can be lowered into the magazine wheel (34) from above, in order to directly remove the tools from the inside of the magazine wheel (34).

## Claims

### Claim 1

Machine tool with a work space and with a horizontal tool spindle for processing a work piece located in the work space by means of a tool held by the tool spindle, with the tool spindle being displaceable in a controlled manner along at least one horizontal axis (Y-axis) and along the vertical axis (Z-axis), characterized in that a tool magazine is located adjacent to the work space, which magazine comprises a magazine wheel (34) that is rotatable in a controlled manner about a vertical axis, that the magazine wheel (34) has tool holders (50) on its periphery, in which tools (56) can be held with the tool central longitudinal axis radially aligned with respect to the axis of rotation of the magazine wheel (34) and with their holding shafts directed toward the inside of the magazine wheel (34), and that, for purposes of a tool exchange, the tool spindle (30) can be displaced horizontally over the magazine wheel (34), lowered vertically into the inside of the periphery of the magazine wheel (34) and displaced radially inside the periphery of the magazine wheel (34) with respect to the tool holders (50).

### Claim 2 (depends on 1)

Machine tool according to claim 1, characterized in that the tool holders (50) each have an upward opening mounting (54) into which a respective one of the tools (56) is placed from above and lifted out upward.

### Claim 3 (depends on 2)

Machine tool according to claim 2, characterized in that the tools (56) are each placed into the respective mounting (54) of the respective tool holder (50) with a gripping groove, so that they are held in the mounting (54) by their own weight and, through the mounting (54) fitting in the gripping groove, are held securely against a displacement in the direction of the tool axis and against tilting.

### Claim 4 (depends on 1)

Machine tool according to claim 1, characterized in that the work space is protruded toward the tool magazine and that the magazine wheel (34) has a segment-shaped cutout (46) whose shape corresponds to the protruded shape of the work space and which coincides with the protruded shape of the work space in an initial position of the magazine wheel (34).

### Claim 5 (depends on 1)

Machine tool according to claim 1, characterized in that the work space is partitioned from the tool magazine by partitions (32) that can be moved.

### Claim 6 (depends on 1)

Machine tool according to claim 1, characterized in that the Magazine wheel (34) is an outside magazine wheel, and an additional inner magazine wheel (58), which is rotatable in a controlled manner independently of the outside magazine wheel (34), can be concentrically placed into the outside magazine wheel (34).