# US 8,739,664 B2 · Revolver disk and tool holder for a cutting tool

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- Number: US 8,739,664 B2
- Document ID: US8739664B2
- Status: Granted
- Kind: B2
- Application number: 13/484,759
- Filed: 2012-05-31
- Published: 2012-12-06
- Granted: 2014-06-03
- Earliest claimed: 2011-05-31
- Assignees: Su-Matic Corp.
- Applicants: Riccardo Sinisgalli; Moreno Clò
- Inventors: Riccardo Sinisgalli; Moreno Clò
- Web page: https://patentgrep.com/patent/US8739664B2

## CPC

- B23B 29/242: {Turrets, without description of the angular positioning device (turret lathes for turning individually-chucked workpieces B23B3/16; turrets with manually operated angular positioning devices B23B29/282; turrets with power operated angular positioning devices B23B29/323)}
- B23B 31/261: {clamping the end of the toolholder shank}
- B23B 2265/12: Eccentric
- Y10T 82/2587: Turret type holder [e.g., multiple tools, etc.]
- Y10T 82/2589: Quick release tool or holder clamp
- B23B: TURNING; BORING (arrangements for copying or controlling B23Q)
- Y10T: TECHNICAL SUBJECTS COVERED BY FORMER US CLASSIFICATION

## Abstract

A revolver disk (1) for a machine tool with, in the area of the radially extending bore holes (7) for the projection (9) of tool holders (5), a rotary axis of the revolver disk (1) extending parallel and penetrating bores (11) aligned perpendicular in reference to the face, by which a tool holder key (27) is guided. By displacing the tool holder key (27) against the force of a spring (17) the frontal end (25) is inserted into the clamping device in the projection (9) of the tool holder (5) and thus the tool is clamped with it.

## Claims

### Claim 1

A revolver disk (1) for a machine tool adapted to receive a multitude of tool holders (5) for cutting tools, comprising support areas (3) embodied at a periphery of the revolver disk (1) for the tool holders (5), extending radial in reference to a rotary axis of the revolver disk (1), bore holes (7) each inserted into the support areas (3) for receiving projections (9) of the tool holders (5), and threaded bores in the support areas (3) to fasten the tool holders (5) with bolts (6) on the support areas (3), penetrating bores (11) are located in a side face area (4) of the revolver disk (1), spaced apart from the support areas (3), in which the radial bore holes (7) are embodied to receive the projections (9) of the tool holders (5), the penetrating bores (11) are adapted for insertion of tool holder keys (27) into an inside of the projections (9) of the tool holders (5) in order to clamp any clamping element located there to clamp tools to the tool holders (5).

### Claim 2 (depends on 1)

The revolver disk according to claim 1, wherein at least one threaded bore is also provided for fastening a guiding plate (26) in the side face area (4), in addition to the penetrating bores (11).

### Claim 3 (depends on 2)

The revolver disk according to claim 2, wherein the guiding plate (26) comprises a guiding bore (28) for the axial guidance of a tool holder key (27).

### Claim 4 (depends on 3)

The revolver disk according to claim 3, wherein a spring (17) is inserted in the guiding bore (29), which keeps the tool holder key (27) in an unstressed state from engagement with the tool holder (5).

### Claim 5 (depends on 1)

The combination of the revolver disk according to claim 1 and a tool holder (5a) fastened to a revolver disk (1), wherein the penetrating bores (11) are embodied at a face in the radial bore holes (7) in the periphery of the revolver disk (1), and a clamping device is arranged in the projection (9) of the tool holder (5a) to clamp and hold a cutting tool in the tool holder (5).

### Claim 6 (depends on 5)

The combination according to claim 5, wherein a hole is located in a casing of the projection (9) in order to allow passage of the tool holder key (27) into an interior of the projection (9) up to the clamping device arranged there.

### Claim 7 (depends on 6)

The combination according to claim 6, wherein the hole in the projection (9) is aligned with the allocated penetrating hole (11) arranged in the revolver disk (1), when the tool holder (5) is inserted in the revolver disk (1).