Processing apparatus and processing method

Patent metadata

Field	Value
Publication number	US-10035229-B2
Application number	US-201214127828-A
Country	US
Kind code	B2
Filing date	Aug 7, 2012
Priority date	Aug 11, 2011
Publication date	Jul 31, 2018
Grant date	Jul 31, 2018

Abstract

A processing apparatus and a processing method with which an object-to-be-cut is processed, and a high-precision superconducting acceleration cavity can be formed. The processing apparatus forming a half cell by processing a hollow workpiece, and is provided with a securing jig, a rotational drive portion rotating the securing jig, and a cutting tool. The securing jig having a plurality of members, when cutting a first portion-to-be-cut of the workpiece, the plurality of members are combined in a first pattern so that the first portion-to-be-cut is exposed, when cutting a second portion-to-be-cut of the workpiece, the plurality of members are combined in a second pattern so that the second portion-to-be-cut is exposed, and the combination of the plurality of members is changed from the first pattern to the second pattern without removing the workpiece.

First claim

The invention claimed is:

1. A processing apparatus that forms an acceleration cavity member by processing a hollow object-to-be-cut, one end of which serves as a large-diameter portion and the other end of which serves as a small-diameter portion, the processing apparatus comprising:
a securing jig that secures the object-to-be-cut;
a rotational drive portion that rotates the securing jig; and
a cutting tool that cuts the object-to-be-cut,
wherein the securing jig is formed of a plurality of members,
when cutting a first portion-to-be-cut of the object-to-be-cut, the plurality of members are combined in a first pattern so that the first portion-to-be-cut is exposed; when cutting a second portion-to-be-cut of the object-to-be-cut, the plurality of members are combined in a second pattern, which is different from the first pattern, so that the second portion-to-be-cut is exposed, and
the combination of the plurality of members is changed from the first pattern to the second pattern without removing the object-to-be-cut from the securing jig.

2. A processing apparatus that forms a half member of an acceleration cavity portion by processing a hollow object-to-be-cut, one end of which serves as a large-diameter portion and the other end of which serves as a small-diameter portion, the processing apparatus comprising:
a securing jig having a curved outer surface that secures the object-to-be-cut by sucking an inner surface of the object-to-be-cut, which is an opposite surface of a portion-to-be-cut, so that the portion-to-be-cut of the object-to-be-cut is exposed;
a rotational drive portion that rotates the securing jig; and
a cutting tool that cuts the object-to-be-cut,
wherein, on the outer surface, two O-rings are provided, one of which is provided at a portion which comes into contact with the large-diameter portion and the other of which is provided at a portion which comes into contact with the small-diameter portion, and an opening portion that sucks the object-to-be-cut is formed between the two O-rings.

3. A processing method employing a processing apparatus that forms an acceleration cavity member by processing a hollow object-to-be-cut, one end of which serves as a large-diameter portion and the other end of which serves as a small-diameter portion, the processing method comprising:
a step of securing the object-to-be-cut with a securing jig formed of a plurality of members;
a step of rotating the securing jig with a rotational drive portion; and
a step of cutting the object-to-be-cut with a cutting tool,
wherein the step of securing the object-to-be-cut includes:
a step of, when cutting a first portion-to-be-cut of the object-to-be-cut, combining the plurality of members in a first pattern so that the first portion-to-be-cut is exposed, and
a step of, when cutting a second portion-to-be-cut of the object-to-be-cut, combining the plurality of members in a second pattern, which is different from the first pattern, so that the second portion-to-be-cut is exposed, and

wherein the combination of the plurality of members is changed from the first pattern to the second pattern without removing the object-to-be-cut from the securing jig.

4. A processing method employing a processing apparatus that forms a half member of an acceleration cavity portion by processing a hollow object-to-be-cut, one end of which serves as a large-diameter portion and the other end of which serves as a small-diameter portion, the processing method comprising:
a step of securing the object-to-be-cut with a securing jig by bringing a curved outer surface of the securing jig, which comes into contact with the object-to-be-cut, into contact with an inner surface of the object-to-be-cut, which is an opposite surface of a portion-to-be-cut so that the portion-to-be-cut of the object-to-be-cut is exposed;
a step of rotating the securing jig with a rotational drive portion;
a step of cutting the object-to-be-cut with a cutting tool and
a step of providing, on the outer surface, two O-rings, one of which is provided at a portion which comes into contact with the large-diameter portion and the other of which is provided at a portion which comes into contact with the small-diameter portion,
wherein the step of securing the object-to-be-cut secures the object-to-be-cut by sucking the inner surface of the object-to-be-cut by means of an opening portion formed between the two O-rings on the outer surface.

Assignees

• Horie Tasuku
• Tsubota Shuho
• Sennyu Katsuya
• Hara Hiroshi
• Mitsubishi Heavy Ind Mach Systems Ltd

Inventors

• Horie Tasuku
• Tsubota Shuho
• Sennyu Katsuya
• Hara Hiroshi

Classifications

• Y10T82/10

  Process of turning · CPC title

• B23Q3/065 Primary

  for holding workpieces being specially deformable, e.g. made from thin-walled or elastic material · CPC title

• B23B5/00

  Turning-machines or devices specially adapted for particular work; Accessories specially adapted therefor · CPC title

• Y10T82/14

  Axial pattern · CPC title

• B23Q3/088

  using vacuum means · CPC title