Grinding wheel tool

{
  "publication_number": "US10213904B2",
  "country": "US",
  "kind": "B2",
  "title": "Grinding wheel tool",
  "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.",
  "claims": [
    "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."
  ],
  "description_excerpt": "The present invention relates to a grinding wheel tool.\n\nA grinding wheel tool is formed by adhering many abrasive grains on an outer surface of a base having a disk or columnar shape or the like. The grinding wheel tool can grind a workpiece with certain amounts of depth of cut and feed being given to the workpiece while the base is rotating at a high speed. In such a grinding wheel tool, if the size of the abrasive grains is reduced in order to improve the surface roughness of the ground surface of the workpiece, chip pockets (pores) for discharging cutting chips are narrowed, so that clogging becomes likely to occur.\n\nFor this reason, for example, Patent Document 1 listed below or the like has proposed to form supply holes for supplying a grinding fluid in an outer surface of a base on which abrasive grains are adhered, and to send the grinding fluid out of the outer surface of the base to thereby suppress the occurrence of clogging.\n\nHowever, in the grinding wheel tool described in Patent Document 1 or the like, when the amount of cutting chips to be generated per unit time is large as in the case of high-feed processing or the like, there is a possibility that clogging likewise occurs.\n\nIn view of this, an object of the present invention is to provide a grinding wheel tool capable of greatly suppressing the occurrence of clogging even when the amount of cutting chips to be generated per unit time is large as in the case of high-feed processing or the like.\n\nA grinding wheel tool according to a first aspect for solving the above-described problem is characterized in that the grinding wheel tool comprises:",
  "cpc": [
    "B24D 5/10",
    "B23D 59/025",
    "B24B 55/102"
  ],
  "ipc": [
    "B24D 5/10"
  ],
  "assignees": [
    "Mitsubishi Heavy Industries Machine Tool Co Ltd"
  ],
  "inventors": [
    "Hideaki Arisawa"
  ],
  "filing_date": "2014-09-09",
  "publication_date": "2019-02-26",
  "grant_date": "2019-02-26",
  "priority_date": "2013-12-25",
  "application_number": "US-201415038294-A",
  "family_id": "53478077",
  "cited_by_count": 2,
  "citations": [
    "US2819568A",
    "US3282263A",
    "US3754359A",
    "US4058936A",
    "JPS5859765A",
    "JPS58143162U",
    "JPH02126761U",
    "JPH05269669A",
    "JPH07237131A",
    "US5993297A",
    "US5846125A",
    "US20090221218A1",
    "US8202141B2",
    "JP2007144597A",
    "EP2324945A1",
    "US20120051857A1",
    "US8641479B2",
    "JP3166021U",
    "JP2014046368A",
    "US20150231764A1",
    "US20150306685A1"
  ]
}