Point of a knife changes formula cutting element and the cutting insert for this cutting element

Point of a knife changes formula cutting element and the cutting insert for this cutting element

  • CN 102,317,019 B
  • Filed: 02/10/2010
  • Issued: 06/01/2016
  • Est. Priority Date: 02/13/2009
  • Status: Active Grant
First Claim
Patent Images

1. point of a knife changes a formula cutting element, possesses tool body, and this tool body has the axis extended from front to base end side, and by cutting insert can be assemblied in described tool body in the way of loading and unloading, described point of a knife is changed formula cutting element and possessed:

  • It is formed at multiple blade mounting seats of described tool body, this blade mounting seat has the wall surface being provided with screw and intersects with this wall surface and towards the side wall surface that formed of instrument outer circumferential side ground, when cutting insert is installed on this blade mounting seat, cutting insert abuts with this wall surface and this side wall surface respectively;

    With Being integrally formed in multiple upper wall portions of described tool body, each in the plurality of upper wall portions is stretched out relative to the corresponding blade mounting seat in the plurality of blade mounting seat, Each of the plurality of upper wall portions is formed the blade mounting seat adjacent with corresponding blade mounting seat, The base end part that each of the plurality of upper wall portions has a leading section and the base end side to this leading section extends, Each of the plurality of upper wall portions is formed as, when cutting insert is installed on the blade mounting seat of correspondence, at least one of mode to cover described cutting insert is stretched out from described sidewall towards the rear of instrument direction of rotation, and it is bigger relative to the overhang of described blade mounting seat than described leading section relative to the overhang of described blade mounting seat to be formed as described base end part, and it extend out to the degree roughly the same with the width of described wall surface at terminal part, thus, the thickness of the part supporting cutting insert of the blade mounting seat adjacent with a corresponding blade mounting seat increases, Each of the plurality of upper wall portions has the wall dividing formation chip pocket, this wall part between the described leading section and described base end part of this upper wall portions is carried out shape imparting as follows;

    when described cutting insert is installed on the blade mounting seat of correspondence, does not hinder and installs screw installing hole being screwed into the described screw of the blade mounting seat of this correspondence by this cutting insert.

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