JPS628058U

JPS628058U -

Info

Publication number: JPS628058U
Application number: JP9840385U
Authority: JP
Priority date: 1985-06-28
Filing date: 1985-06-28
Publication date: 1987-01-19

Description

[Brief explanation of the drawing]

第１図は本考案に係るダイス穴研削装置を示す
一部断面正面図、第２図は第１の内筒を示す正面
図、第３図は第２の内筒を示す正面図、第４図は
研削具の軌跡を示す概念図、第５図は他の実施例
に係るダイス穴研削装置を示す一部断面正面図、
第６図は他の実施例に係る第１の内筒を示す正面
図、第７図は、従来技術を説明する説明図である
。１……外筒、２……保持軸、３……上型、４ａ
……ポンチ保持穴、９……第１の内筒、１０……
第２の内筒、１１……グラインダ、Ｏ_１……外筒
の中心軸心、Ｏ_２……第１の内筒の中心軸心、Ｏ
_４……第２の内筒の中心軸心、Ｏ_７……砥石の回
転軸心。 Fig. 1 is a partially sectional front view showing a die hole grinding device according to the present invention, Fig. 2 is a front view showing a first inner cylinder, Fig. 3 is a front view showing a second inner cylinder, and Fig. 4 is a front view showing a first inner cylinder. The figure is a conceptual diagram showing the locus of the grinding tool, and FIG. 5 is a partially sectional front view showing a die hole grinding device according to another embodiment.
FIG. 6 is a front view showing a first inner cylinder according to another embodiment, and FIG. 7 is an explanatory diagram illustrating the prior art. 1...Outer cylinder, 2...Holding shaft, 3...Upper mold, 4a
...Punch holding hole, 9...First inner cylinder, 10...
Second inner cylinder, 11... Grinder, O ₁ ... Central axis of outer cylinder, O ₂ ... Central axis of first inner cylinder, O
₄ ... Central axis of the second inner cylinder, O ₇ ... Rotating axis of the grindstone.

Claims

[Scope of Claim for Utility Model Registration] An outer cylinder that is shaped like a cylinder with a bottom and has a holding shaft that is detachably fitted into a punch holding hole in an upper mold at the outer bottom part of the outer cylinder on its central axis; a first inner cylinder that is fitted and held in the cylinder with its center axis aligned and rotates relative to the outer cylinder around the center axis of the outer cylinder; The center axis is eccentrically fitted and held with respect to the center axis of the first inner cylinder, and rotates about the center axis of the first inner cylinder as the first inner cylinder rotates. and a second inner cylinder that rotates relative to the first inner cylinder by a predetermined amount of rotation about the central axis every predetermined rotation of the first inner cylinder; A die hole grinding device comprising: a rotary grinding tool which is held at a position where the rotational axis of the rotation axis moves along the rotation of the second inner cylinder and passes through the center axis of the outer cylinder.