JPS6288508U - - Google Patents

Description

【図面の簡単な説明】[Brief explanation of the drawing]

第１図は本考案の一実施例に係わる刃先逃がし
装置を示す断面図、第２図は第１図の左側面図、
第３図は第１図における―線に沿う断面図、
第４図Ａ〜Ｄはそれぞれワークの切削加工状態を
示す正面図、第５図、及び第６図は従来の刃先逃
がし装置を示す正面図である。 ２０…主軸、２３…円筒体、２７…装置本体、
２８…収容孔、２９…回動体、３５…ボーリング
バー、３６…バイト、３８…第１ストツパー、４
０，４１…第２ストツパー、４２…駆動軸、４３
…スクリユーシヤフト、５０…駆動手段。 FIG. 1 is a sectional view showing a cutting edge relief device according to an embodiment of the present invention, FIG. 2 is a left side view of FIG. 1,
Figure 3 is a cross-sectional view taken along the line - in Figure 1;
FIGS. 4A to 4D are front views showing the cutting state of a workpiece, and FIGS. 5 and 6 are front views showing a conventional cutting edge relief device. 20...Main shaft, 23...Cylindrical body, 27...Device main body,
28... Accommodation hole, 29... Rotating body, 35... Boring bar, 36... Bit, 38... First stopper, 4
0, 41...Second stopper, 42...Drive shaft, 43
...screw shaft, 50...driving means.

Claims (1)

【実用新案登録請求の範囲】[Scope of utility model registration request] 主軸に固着された装置本体内に前記主軸の中心
軸に対して偏心した収容孔を形成し、切削加工用
のバイトが取付けられる回動体を前記収容孔内に
所定の回動範囲で回動可能に取付け、前記回動体
に設けられた第１ストツパーと係合して前記回動
体の前記装置本体に対する回動を規制する第２ス
トツパーを前記装置本体に設け、前記回動体を前
記収容孔内で回動させて前記バイトの刃先を前記
主軸の中心軸に対して径方向に移動させる駆動手
段を前記装置本体内に設けたことを特徴とする刃
先逃がし装置。 A housing hole eccentric to the center axis of the spindle is formed in the device body fixed to the main shaft, and a rotating body to which a cutting tool is attached can be rotated within a predetermined rotation range within the housing hole. A second stopper is attached to the device body and engages with a first stopper provided on the rotating body to restrict rotation of the rotating body with respect to the device body, and the rotating body is mounted in the accommodation hole. A cutting edge release device, characterized in that a driving means for rotating the cutting edge of the cutting tool in a radial direction with respect to the central axis of the main shaft is provided in the device main body.