Machine Tool
US-2026070129-A1 · Mar 12, 2026 · US
Chamfer machining method
US9956624B2 · US · B2
| Field | Value |
|---|---|
| Publication number | US-9956624-B2 |
| Application number | US-201414779323-A |
| Country | US |
| Kind code | B2 |
| Filing date | Apr 25, 2014 |
| Priority date | Apr 30, 2013 |
| Publication date | May 1, 2018 |
| Grant date | May 1, 2018 |
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- Title
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- Abstract
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Abstract
Official abstract text for this publication.
A beveling method for beveling the edge of the opening of a cross hole ( 2 - 1 ) formed in a workpiece (W) while rotating a conical tool ( 1 ), which has conical cutting blade sections ( 11 - 1, 11 - 2 ), wherein beveling is carried out so that a surface of the same width is formed on the edge of the opening of the cross hole ( 2 - 1 ) by controlling the height of the conical tool ( 1 ) and/or the position of the rotation shaft of the conical tool ( 1 ) on the basis of a conic section, which is generated when a cutting blade section ( 11 - 1, 11 - 2 ) is cut with an imaginary plane (V) that contacts the processing point (P) of the conical tool ( 1 ) on the cross hole ( 2 - 1 ), and the shape of the edge of the cross hole ( 2 - 1 ) opening.
First claim
Opening claim text (preview).
The invention claimed is: 1. A chamfer machining method for carrying out chamfer machining of an opening edge part of a cross hole formed on a workpiece having an outer peripheral surface that has a cross-sectional shape of a circle or an inner peripheral part that has a cross-sectional shape of a circle, by rotating a tool having a conical cutting blade, wherein chamfer machining is carried out so that a surface having the same width is formed on the opening edge part of the cross hole by controlling at least one of a height of the tool and a position of a rotation axis of the tool, based on the shape of the opening edge part of the cross hole and a conic section that is generated by cutting the cutting blade by a virtual plane that is tangent to the circle, of the outer peripheral surface or the inner peripheral part, at a point which is a machining point on which the tool machines the cross hole, so that the conic section comes into contact with an inner wall of the cross hole at one point. 2. The chamfer machining method according to claim 1 wherein at least one of the height of the tool and the position of the rotation axis of the tool is controlled based on the degree measure of a vertex angle of the conical shape of the cutting blade of the tool and an inner diameter of the cross hole.
Assignees
Inventors
Classifications
of pipes or cylinders · CPC title
Conical · CPC title
Chamferring · CPC title
- B23C3/124Primary
internally · CPC title
Machines or devices designed for grinding edges or bevels on work or for removing burrs; Accessories therefor (B24B21/00 takes precedence; for sharpening cutting edges on tools B24B3/00; removing burrs by loose abrasive material B24B31/00) · CPC title
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- What does patent US9956624B2 cover?
- A beveling method for beveling the edge of the opening of a cross hole ( 2 - 1 ) formed in a workpiece (W) while rotating a conical tool ( 1 ), which has conical cutting blade sections ( 11 - 1, 11 - 2 ), wherein beveling is carried out so that a surface of the same width is formed on the edge of the opening of the cross hole ( 2 - 1 ) by controlling the height of the conical tool ( 1 ) and/or …
- Who is the assignee on this patent?
- Citizen Watch Co Ltd, Citizen Machinery Co Ltd
- What technology area does this patent fall under?
- Primary CPC classification B23C3/124. Mapped technology areas include Operations & Transport.
- When was this patent published?
- Publication date Tue May 01 2018 00:00:00 GMT+0000 (Coordinated Universal Time) (B2). Legal status and post-grant events are not shown on this page.
- What related patents are in patentsdb?
- We list 7 related publications on this page (citations in our corpus or others sharing the same primary CPC).