Grinding wheel tool

Patent metadata

Field	Value
Publication number	US-10213904-B2
Application number	US-201415038294-A
Country	US
Kind code	B2
Filing date	Sep 9, 2014
Priority date	Dec 25, 2013
Publication date	Feb 26, 2019
Grant date	Feb 26, 2019

Abstract

This grinding wheel tool is provided with a cylindrically shaped head unit comprising a hollow area passing through the inside, and abrasive grains adhered across the entire outer peripheral surface of the head unit. A fluid is supplied in the hollow area, and in the head unit, communication holes are formed which communicate between the hollow area and the outer peripheral surface and which, from the radial direction of the head unit, are angled forwards in the direction of rotation. Hereby, it is possible to provide a grinding wheel tool which can greatly reduce clogging even in cases where a high amount of cutting chips are generated per unit time, such as in high-feed processing.

First claim

The invention claimed is:

1. A grinding wheel tool, the grinding wheel tool comprises:
a cylindrical head portion having a hollow portion penetrating inside; and
abrasive grains adhered on an entire outer peripheral surface of the head portion,
wherein the hollow portion is coaxial with the head portion and is configured to allow a fluid supplied from a shaft portion side to flow inside the hollow portion to be discharged outside from the head portion side, and
a plurality of communication holes through which the hollow portion and said outer peripheral surface communicate with each other are formed in the head portion, each of the communication holes being inclined at an inclination angle from a radial direction of the head portion forward in a rotational direction thereof and configured to suction therein cutting chips generated during processing.

2. The grinding wheel tool according to claim 1 , wherein each communication hole is such that the inclination angle smoothly increases toward the outer peripheral surface.

3. The grinding wheel tool according to claim 2 , wherein each communication hole is inclined such that the communication hole is located closer to a front end of the head portion as extending toward an axis of the head portion.

4. The grinding wheel tool according to claim 3 , whereineach communication hole has a tapered shape in which a diameter size of the communication hole increases toward an axis of the head portion.

5. The grinding wheel tool according to claim 1 , wherein each communication hole has a linear shape.

6. The grinding wheel tool according to claim 5 , wherein each communication hole is inclined such that the communication hole is located closer to a front end of the head portion as extending toward an axis of the head portion.

7. The grinding wheel tool according to claim 5 , wherein each communication hole has a tapered shape in which a diameter size of the communication hole increases toward an axis of the head portion.

Assignees

• Mitsubishi Heavy Ind Machine Tool Co Ltd

Inventors

• Arisawa Hideaki

Classifications

• B23D59/025

  the lubricating or cooling medium being applied through the mounting means of the tool, e.g. the tool spindle or hub · CPC title

• B24D5/10 Primary

  with cooling provisions, e.g. with radial slots · CPC title

• B24B55/102

  with rotating tools · CPC title