JPH0396104U - - Google Patents
Info
- Publication number
- JPH0396104U JPH0396104U JP526390U JP526390U JPH0396104U JP H0396104 U JPH0396104 U JP H0396104U JP 526390 U JP526390 U JP 526390U JP 526390 U JP526390 U JP 526390U JP H0396104 U JPH0396104 U JP H0396104U
- Authority
- JP
- Japan
- Prior art keywords
- head
- holder
- cutting tool
- shank
- hook
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Granted
Links
- 230000002093 peripheral effect Effects 0.000 claims 2
- 238000010586 diagram Methods 0.000 description 3
- 230000000052 comparative effect Effects 0.000 description 1
Landscapes
- Gripping On Spindles (AREA)
- Auxiliary Devices For Machine Tools (AREA)
- Milling Processes (AREA)
Description
第１図は、この考案の一実施例の要部を示す断
面図、第２図はシヤンク側のフツクを示す斜視図
、第３図はヘツドの背面図、第４図はロツクキー
の斜視図、第５図はヘツドの装着時の回転方向を
示す図、第６図はヘツドの先端側の側面図、第７
図はその正面図、第８図はヘツドを第６図の位置
から９０°回転して見た側面図、第９図は従来例
の断面図、第１０図は切削抵抗の比較結果を示す
グラフ、第１１図は比較試験の形態を示す図であ
る。
１……エンドミルヘツド、２……Ｓ字Ｒ切刃、
３……外周ねじれ刃、４，５……すくい面、６…
…ポケツト壁、７，８……逃げ面、９……スパナ
掛け面、１０……テーパシヤンク、１１……フツ
ク、１１ａ……カム面、１２……エアー孔、１６
……テーパ穴、１７……エアー孔、１８……ロツ
クキー、１９……フツク、１９ａ……カム面、２
０……螺子、２１……スパナ穴。
Fig. 1 is a sectional view showing the main parts of an embodiment of this invention, Fig. 2 is a perspective view showing the hook on the shank side, Fig. 3 is a rear view of the head, Fig. 4 is a perspective view of the lock key, Figure 5 is a diagram showing the rotation direction when the head is installed, Figure 6 is a side view of the tip end of the head, and Figure 7 is a diagram showing the rotation direction when the head is installed.
The figure is a front view, Figure 8 is a side view of the head rotated 90 degrees from the position in Figure 6, Figure 9 is a sectional view of the conventional example, and Figure 10 is a graph showing the comparison results of cutting force. , FIG. 11 is a diagram showing the form of a comparative test. 1... End mill head, 2... S-shaped R cutting blade,
3...Outer circumferential twisted blade, 4, 5...Rake face, 6...
... Pocket wall, 7, 8 ... Relief surface, 9 ... Wrench hanging surface, 10 ... Taper shank, 11 ... Hook, 11a ... Cam surface, 12 ... Air hole, 16
... Taper hole, 17 ... Air hole, 18 ... Lock key, 19 ... Hook, 19a ... Cam surface, 2
0...screw, 21...spanner hole.
Claims (1)
平行平面のスパナ掛け面を各々有する切削ヘツド
と、先端にテーパ穴を設けたホルダと、上記テー
パ穴に挿入した上記テーパシヤンクをホルダに着
脱自在に固定するクランプ手段とで構成されるヘ
ツド着脱式回転切削工具において、上記クランプ
手段を、上記テーパ穴の穴底部に固定して設ける
ロツクキーと、上記テーパシヤンクの後部に形成
してシヤンクとホルダの相対回転でロツクキー先
端のフツクに係合させるフツクとで構成すると共
に、ロツクキー先端の外径面をテーパ穴の内径面
に当接させ、かつ、上記フツクの相互係合面の少
なくとも一方を、工具の逆転方向に向かつてその
位置が軸方向に後退して行くカム面となしたこと
を特徴とするヘツド着脱式回転切削工具。 (2) 上記ヘツドは、Ｓ字刃型、外周ねじれ刃を
有するボールエンドミルヘツドである請求項(1)
記載のヘツド着脱式回転切削工具。 (3) 上記ヘツドとホルダに、ホルダ後方から供
給したエアーをヘツドの切刃ポケツト部に噴き出
すエアー孔を設けた請求項の(1)又は(2)に記載の
ヘツド着脱式回転切削工具。[Scope of Claim for Utility Model Registration] (1) A cutting head having a tapered shank at the rear and a parallel flat wrench gripping surface on the peripheral flank, a holder having a tapered hole at its tip, and the above-mentioned cutting head inserted into the tapered hole. A removable head rotary cutting tool comprising a clamp means for removably fixing a taper shank to a holder, the clamp means comprising a lock key fixedly provided at the bottom of the taper hole and a rear part of the taper shank. and a hook that is engaged with the hook at the tip of the lock key by relative rotation of the shank and the holder, and the outer diameter surface of the lock key tip is brought into contact with the inner diameter surface of the tapered hole, and the mutual engagement surface of the hook is A rotary cutting tool with a detachable head, characterized in that at least one of the cam surfaces is a cam surface that moves backward in the axial direction as it faces in the reverse direction of the tool. (2) Claim (1) wherein the head is a ball end mill head having an S-shaped blade type and a peripheral twisted blade.
The described rotary cutting tool with a detachable head. (3) The rotary cutting tool with a removable head according to claim 1 or 2, wherein the head and the holder are provided with an air hole through which air supplied from the rear of the holder is blown into the cutting edge pocket of the head.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP1990005263U JPH0634885Y2 (en) | 1990-01-23 | 1990-01-23 | Head detachable rotary cutting tool |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP1990005263U JPH0634885Y2 (en) | 1990-01-23 | 1990-01-23 | Head detachable rotary cutting tool |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| JPH0396104U true JPH0396104U (en) | 1991-10-01 |
| JPH0634885Y2 JPH0634885Y2 (en) | 1994-09-14 |
Family
ID=31508980
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP1990005263U Expired - Lifetime JPH0634885Y2 (en) | 1990-01-23 | 1990-01-23 | Head detachable rotary cutting tool |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPH0634885Y2 (en) |
Citations (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS481173U (en) * | 1971-05-31 | 1973-01-09 | ||
| JPS5662820U (en) * | 1979-10-18 | 1981-05-27 |
-
1990
- 1990-01-23 JP JP1990005263U patent/JPH0634885Y2/en not_active Expired - Lifetime
Patent Citations (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS481173U (en) * | 1971-05-31 | 1973-01-09 | ||
| JPS5662820U (en) * | 1979-10-18 | 1981-05-27 |
Also Published As
| Publication number | Publication date |
|---|---|
| JPH0634885Y2 (en) | 1994-09-14 |
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