JPS6295803U

JPS6295803U -

Info

Publication number: JPS6295803U
Application number: JP18809985U
Authority: JP
Priority date: 1985-12-06
Filing date: 1985-12-06
Publication date: 1987-06-18
Also published as: JPH0141522Y2

Description

[Brief explanation of the drawing]

第１図〜第５図はこの考案のボーリングバイト
の一実施例を示すもので、第２図は側面図、第３
図は上記ボーリングバイトに装着される切刃チツ
プの正面図、第４図は同切刃チツプの側面図、第
５図は上記ボーリングバイトのホルダ先端部を示
す斜視図、第６図および第７図は従来のボーリン
グバイトの一例を示すもので、第６図は正面図、
第７図は側面図、第８図および第９図は従来のボ
ーリングバイトの例を示すもので、第８図は正面
図、第９図は側面図である。２０……ホルダ、２１……先端面、２２，２４
……側面、２３……第１の段部、２５……第２の
段部、２６……チツプ座、２７……クランプネジ
、２８……ネジ穴、３０……切刃チツプ、３１，
３６……下面、３２……着座部、３３……切刃、
３７……取付孔、３８，３９……側面。 Figures 1 to 5 show an embodiment of the boring tool of this invention. Figure 2 is a side view, and Figure 3 is a side view.
The figure is a front view of the cutting tip attached to the boring tool, FIG. 4 is a side view of the cutting tool, FIG. 5 is a perspective view showing the tip of the holder of the boring tool, and FIGS. The figure shows an example of a conventional boring tool; Figure 6 is a front view;
FIG. 7 is a side view, and FIGS. 8 and 9 show examples of conventional boring tools. FIG. 8 is a front view, and FIG. 9 is a side view. 20... Holder, 21... Tip surface, 22, 24
... Side surface, 23 ... First step, 25 ... Second step, 26 ... Chip seat, 27 ... Clamp screw, 28 ... Screw hole, 30 ... Cutting blade tip, 31,
36... Lower surface, 32... Seating part, 33... Cutting blade,
37...Mounting hole, 38, 39...Side surface.

Claims

[Scope of utility model registration request]

In a boring tool in which a plate-shaped cutting tip is attached to the tip of a substantially cylindrical holder with a cutting edge formed on the side thereof positioned on the outer circumferential side of the holder, the outer periphery on the tip surface of the holder is a first stepped portion having a side surface protruding from the distal end surface in the axial direction of the holder and facing the axial side;
A second step part is formed that extends in a direction intersecting with the side surface of the first step part and has a side face facing the axis, and the cutting edge tip is held at the tip of the holder. and the two adjacent side surfaces thereof are brought into contact with the side surfaces of the first step and the second step, respectively, and tightened in a direction parallel to the axis of the holder. A boring bit characterized by being fixed to the above holder.