# US 9,517,508 B2 · Convergence machining apparatus based on turning

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- Number: US 9,517,508 B2
- Document ID: US9517508B2
- Status: Granted
- Kind: B2
- Application number: 14/053,678
- Filed: 2013-10-15
- Published: 2014-08-21
- Granted: 2016-12-13
- Earliest claimed: 2013-02-21
- Assignees: Korea Institute of Machinery & Materials
- Applicants: Korea Institute of Machinery & Materials
- Inventors: Jong-Kweon Park; Seung Kook Ro; Byung-Sub Kim; Sung Cheul Lee; Gyung Ho Khim; Sung-Kwon Jang; Soo Chang Choi
- Web page: https://patentgrep.com/patent/US9517508B2

## CPC

- B23B 3/065: {Arrangements for performing other machining operations, e.g. milling, drilling}
- B23Q 1/017: {Arrangements of ways}
- Y10T 82/2531: Carriage feed
- B23B: TURNING; BORING (arrangements for copying or controlling B23Q)
- 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

Disclosed is a convergence machining apparatus based on turning in which a rotational axis of a work piece fixed by a headstock and a tailstock and a center of a width of a slide surface of a bed on which a reciprocal carriage installed with a tool is transferred while being supported are positioned at the same virtual plane, thereby preventing an offset error according to a relative displacement between the work piece and the tool during processing.

## Claims

### Claim 1

A convergence machining apparatus based on turning comprising:
a headstock and a tailstock supported by a first slide surface and a second slide surface of a bed, the headstock and a tailstock fixing a work piece between the first and second slide surfaces of the bed;
a reciprocal carriage installed with a tool, the reciprocal carriage being supported and transferred on the first and second slide surfaces of the bed;
wherein a rotational axis of the work piece is positioned lengthwise along a virtual plane connecting a center of a width of the first slide surface and a center of a width of the second slide surface,
thereby preventing an offset error according to a relative displacement between the work piece and the tool in processing.

### Claim 2 (depends on 1)

The convergence machining apparatus of claim 1, wherein
the virtual plane in which the rotational axis of the work piece and the centers of width of the first and second slide surfaces of the bed are positioned is extended in a horizontal direction.

### Claim 3 (depends on 1)

The convergence machining apparatus of claim 1, wherein
the virtual plane in which the rotational axis of the work piece and the centers of the width of the first and second slide surfaces of the bed are positioned is obliquely extended by a predetermined angle (θ) from a horizontal direction.

### Claim 4 (depends on 1)

The convergence machining apparatus of claim 1, wherein
the headstock and the tailstock include a supporting surface supported by the first and second slide surfaces of the bed, and the center of the width of the supporting surface is positioned on the virtual plane.

### Claim 5

A convergence machining apparatus based on turning, comprising:
a bed including a first slide surface and a second slide surface disposed at both ends of a width direction of an upper surface of the bed;
a headstock fixed at one side on the bed;
a tailstock installed at the other side of the bed to be moved, and the tailstock and the headstock fixing a work piece to be rotated therebetween; and
a reciprocal carriage supported by the first and second slide surfaces while surrounding at least portion of the work piece fixed between the headstock and the tailstock from the outside and including a processing module thereby being guided along the slide surfaces and being installed to be movable,
wherein a rotational axis of the work piece is positioned lengthwise along a virtual plane connecting a center of a width of the first slide surface and a center of a width of the second slide surface.

### Claim 6 (depends on 5)

The convergence machining apparatus of claim 5, further comprising
a plurality of processing modules disposed at a predetermined interval on the reciprocal carriage and respectively installed to have a tip be arranged toward the rotational axis of the work piece to perform different processing.

### Claim 7 (depends on 6)

The convergence machining apparatus of claim 6, wherein
the plurality of processing modules includes a pair of turning processing modules arranged opposite to each other toward the rotational axis of the work piece and performing turning processing, an FTS (Fast Tool Servo) processing module performing FTS processing, a milling processing module mounted from an upper side of the reciprocal carriage toward the rotational axis of the work piece and performing milling processing, and a laser processing module performing laser processing.

### Claim 8 (depends on 5)

The convergence machining apparatus of claim 5, wherein
the virtual plane in which the rotational axis of the work piece and the centers of the width of the first and second slide surfaces of the bed are positioned is extended in a horizontal direction.

### Claim 9 (depends on 5)

The convergence machining apparatus of claim 5, wherein
the virtual plane in which the rotational axis of the work piece and the centers of the width of the first and second slide surfaces of the bed are positioned is obliquely extended at a predetermined angle (θ) from a horizontal direction.

### Claim 10 (depends on 5)

The convergence machining apparatus of claim 5, further comprising:
a headstock fixing block fixed at one side on the bed and surrounding the headstock to be fixed; and
a tailstock moving block formed to be moved at the other end on the bed thereby surrounding the tailstock and moving the tailstock when attaching and detaching the work piece, and
the headstock fixing block and the tailstock moving block symmetrically face each other on the bed thereby forming a rhombus shape.

### Claim 11 (depends on 5)

The convergence machining apparatus of claim 5, wherein
the reciprocal carriage includes
a concave lower body curving around the work piece fixed between the headstock and the tailstock.

### Claim 12 (depends on 11)

The convergence machining apparatus of claim 11, wherein
the reciprocal carriage further includes
a convex upper body connected to be attachable and detachable to the lower body and curves around the work piece thereby forming an arch shape.

### Claim 13 (depends on 5)

The convergence machining apparatus of claim 5, wherein
the bed are symmetrical in reference to a plane including the rotational axis of the work piece and being perpendicular to the upper surface of the bed.