JPS5917540Y2 - Tap holder - Google Patents
Tap holderInfo
- Publication number
- JPS5917540Y2 JPS5917540Y2 JP5512779U JP5512779U JPS5917540Y2 JP S5917540 Y2 JPS5917540 Y2 JP S5917540Y2 JP 5512779 U JP5512779 U JP 5512779U JP 5512779 U JP5512779 U JP 5512779U JP S5917540 Y2 JPS5917540 Y2 JP S5917540Y2
- Authority
- JP
- Japan
- Prior art keywords
- tap
- holder
- workpiece
- cylindrical
- guide body
- 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.)
- Expired
Links
Landscapes
- Jigs For Machine Tools (AREA)
Description
【考案の詳細な説明】
本考案はネジ立て加工に用いるタップのホルダーに係り
、特に加工を簡単にしかも高精度に行なうことができる
とともにタップ寿命の伸長、折損の低減を図り得るタッ
プホルダーに関する。[Detailed Description of the Invention] The present invention relates to a holder for a tap used in thread tapping, and more particularly to a tap holder that allows for easy and highly accurate machining, extends the life of the tap, and reduces breakage.
タップを用いてネジ立て加工を行なう場合、従来ではハ
ンドボールのチャックにタップを直接取付け、加工物を
手で持って加工するようにしていたため、次のような問
題点があった。Conventionally, when tapping a screw using a tap, the tap was attached directly to the chuck of a handball and the workpiece was held in the hand during processing, which caused the following problems.
(1)タップを加工物表面に対し直角に保つことが困難
で、下穴のある加工物に正確に直角にネジ立てを行なう
ことは技能熟練者でも困難である。(1) It is difficult to keep the tap perpendicular to the surface of the workpiece, and it is difficult even for skilled workers to accurately tap a screw at right angles to a workpiece with a pilot hole.
(2)作業性が悪く能率的でない。(2) Poor workability and inefficiency.
(3)タップに無理な力が加わり易いため寿命が短かく
、タップが小径になると折損し易く、工具費に無駄を生
ずる。(3) Unreasonable force is easily applied to the tap, resulting in a short service life, and if the diameter of the tap is small, it is likely to break, resulting in wasted tool costs.
(4)加工品質の均一性に欠け、加工原価の上昇につな
がる。(4) Lack of uniformity in processing quality, leading to an increase in processing costs.
本考案は上記した従来の欠点を除去すべくなされたもの
で、タップを挿着した保持体を案内体に遊挿し、案内体
表面を加工物に密接すると同時に保持体をコイルばねで
押圧しながら回転させて加工を行なうようにすることに
よって、タップを加工物表面に対し容易にしかも確実に
直角に保つことができ、また種々の径のタップをぐらつ
きなく堅固に固定し得るタップホルダーを提供するもの
である。The present invention has been made to eliminate the above-mentioned conventional drawbacks.The holder with the tap inserted therein is loosely inserted into the guide, and at the same time the surface of the guide is brought into close contact with the workpiece, while the holder is pressed by a coil spring. To provide a tap holder which can easily and surely keep a tap perpendicular to the surface of a workpiece by rotating it for machining, and can firmly fix taps of various diameters without wobbling. It is something.
以下図面を参照して本考案の一実施例を説明する。An embodiment of the present invention will be described below with reference to the drawings.
第1図〜第3図において、1はタップであり、このタッ
プ1は筒状補助具2を介して筒状の保持体3に挿着され
ている。In FIGS. 1 to 3, 1 is a tap, and this tap 1 is inserted into a cylindrical holder 3 via a cylindrical auxiliary tool 2. As shown in FIGS.
保持体3は筒状部3aとこれにより径大の底部3bとか
らなるもので、筒状部3a外周の底部3b近傍にはネジ
穴4が形成され、底部3b外周にはピン穴5が形成され
ている。The holder 3 consists of a cylindrical part 3a and a bottom part 3b having a large diameter. A screw hole 4 is formed on the outer periphery of the cylindrical part 3a near the bottom part 3b, and a pin hole 5 is formed in the outer periphery of the bottom part 3b. has been done.
タップ1の固定はネジ穴4に図示しないネジを螺入し補
助具2より露出したタップ1基部を締付けることによっ
て行なわれる。The tap 1 is fixed by inserting a screw (not shown) into the screw hole 4 and tightening the base of the tap 1 exposed from the auxiliary tool 2.
保持体3は肉厚筒状の案内体6内に、保持体3の底部3
bが案内体6基端部から露出するごとく遊挿されている
。The holding body 3 has a bottom portion 3 of the holding body 3 inside a thick-walled cylindrical guide body 6.
b is loosely inserted so that it is exposed from the base end of the guide body 6.
案内体6はその先端面の中央部にV字溝6aを形威し、
その他の部分を平坦面部6bとしたもので、平坦面部6
bには加工物に対し傷を付は難い硬質の板状部材例えば
硬質ゴム板7が貼付けられている。The guide body 6 has a V-shaped groove 6a in the center of its tip surface,
The other portion is a flat surface portion 6b, and the flat surface portion 6
A hard plate-like member such as a hard rubber plate 7, which does not easily damage the workpiece, is attached to b.
案内体6の基端部には筒状の回転体8の一端が相対的に
回転可能に連結されている。One end of a cylindrical rotating body 8 is connected to the base end of the guide body 6 so as to be relatively rotatable.
すなわち、回転体8の一端側外周には複数個のネジ穴9
が設けられており、案内体6基端部を回転体8一端に遊
嵌してネジ穴9にネジ10を螺入し、ネジ10を案内体
6の基端部外周に形成された溝部に挿入することによっ
て両者の連結がなされている。That is, a plurality of screw holes 9 are provided on the outer periphery of one end of the rotating body 8.
The base end of the guide body 6 is loosely fitted into one end of the rotating body 8, the screw 10 is screwed into the screw hole 9, and the screw 10 is inserted into the groove formed on the outer periphery of the base end of the guide body 6. The two are connected by insertion.
回転体8の他端部は閉塞されかつこの閉塞部分に棒体1
1が一体に形成されており、また回転体8の筒状部には
長手方向に沿って長孔12が形成されている。The other end of the rotating body 8 is closed, and the rod 1 is attached to this closed part.
1 is integrally formed, and a long hole 12 is formed in the cylindrical portion of the rotating body 8 along the longitudinal direction.
回転体8内部には保持体3が案内体6を通して挿入され
、かつ長孔12を通してピン13が保持体3底部3bの
ピン穴5に挿入されている。The holder 3 is inserted into the rotating body 8 through the guide 6, and the pin 13 is inserted into the pin hole 5 of the bottom 3b of the holder 3 through the elongated hole 12.
すなわち、保持体3はピン13が長孔12に係合するた
め回転体8に対し相対的に回転することはできないが、
ピン13が長孔12に沿って移動可能であるため回転体
8に対し長手方向には移動可能となっている。That is, the holding body 3 cannot rotate relative to the rotating body 8 because the pin 13 engages with the elongated hole 12;
Since the pin 13 is movable along the elongated hole 12, it is movable in the longitudinal direction relative to the rotating body 8.
この場合保持体3のストロークは、タップ1の先端部が
案内体3の先端面に対して出入し得るように、すなわち
保持体3が図示右方に移動したときタップ1の先端部が
案内体3の先端面より没入し得るように設定される。In this case, the stroke of the holder 3 is such that the tip of the tap 1 can move in and out of the tip surface of the guide 3, that is, when the holder 3 moves to the right in the figure, the tip of the tap 1 moves into and out of the tip of the guide 3. It is set so that it can be immersed from the tip surface of No. 3.
そして、回転体8内部にはさらに保持体3底部を前方方
向に押圧するコイルばね14が挿入されている。A coil spring 14 is further inserted into the rotating body 8 to press the bottom of the holding body 3 in the forward direction.
第4図は上記のタップホルダーを回転駆動機構としての
卓上形ハンドボール15に装着した状態を示したもので
、回転体8はチャック16により締付固定されており、
把手17を廻すことによって回転体8に回転力が伝達さ
れる。FIG. 4 shows the above-mentioned tap holder attached to a tabletop handball 15 as a rotational drive mechanism, with the rotating body 8 being fastened and fixed by a chuck 16.
By rotating the handle 17, rotational force is transmitted to the rotating body 8.
次にこのタップホルダーの作用について説明する。Next, the function of this tap holder will be explained.
ネジ立て加工を行なう場合は、まず加工物の下穴にタッ
プ1先端を当てがい、加工物でタップ1を長手方向に押
圧する。When tapping a screw, first place the tip of the tap 1 into the prepared hole of the workpiece, and press the tap 1 in the longitudinal direction with the workpiece.
これにより保持体3は案内体6内部を通り回転体8内部
に進入していき、コイルばね14が圧縮される。As a result, the holding body 3 passes through the inside of the guide body 6 and enters the inside of the rotating body 8, and the coil spring 14 is compressed.
このため最終的には、コイルばね14の復元力により工
作物は表面が板材加工物のような平坦のものの場合には
硬質ゴム板7に、また旋盤加工による小物加工物や棒状
のものの場合はV字溝6aにそれぞれ密接する。Therefore, due to the restoring force of the coil spring 14, the workpiece will eventually become a hard rubber plate 7 in the case of a flat surface such as a processed plate, or in the case of a small workpiece processed by lathe processing or a bar-shaped object. They are in close contact with the V-shaped grooves 6a.
したがって、この密接状態が得られる限り、タップ1は
加工物表面に対し直角に保たれる。Therefore, as long as this close contact is achieved, the tap 1 is kept perpendicular to the workpiece surface.
そこで、工作物表面を硬質ゴム板7あるいはV字溝6a
に密接させたまま卓上形ハンドボール15の把手を廻し
回転体8に回転力を与えると、保持体3はピン13が長
孔14に係合しているため、回転体8とともに保持体3
およびタップ1が回転する。Therefore, the surface of the workpiece is covered with the hard rubber plate 7 or the V-shaped groove 6a.
When the handle of the tabletop handball 15 is turned to apply a rotational force to the rotating body 8 while the handball 15 is held in close contact with
and tap 1 rotates.
このとき、案内体6は加工物が密接しているため回転し
ない。At this time, the guide body 6 does not rotate because the workpiece is in close contact with the guide body 6.
したがって、タップ1は前進し、加工物には正確に直線
的にメネジが形成される。Therefore, the tap 1 advances and the workpiece is accurately and linearly formed with an internal thread.
このように、本考案のタップホルダーは案内体先端面を
加工物に密接させタップをコイルばねで押圧しながら回
転させてネジ立て加工を行なう構造であるため、タップ
を加工物表面に対し正確に直角に保つことができるので
、高精度な加工を行なうことができ、またタップを直角
に保つのに熟練を必要とせず加工が著しく簡単となり、
作業能率が向上する。In this way, the tap holder of the present invention has a structure in which the tip of the guide body is placed in close contact with the workpiece and the tap is rotated while being pressed by the coil spring to perform thread tapping, so the tap can be accurately placed against the workpiece surface. Since the tap can be kept at right angles, high-precision machining can be performed, and machining is extremely easy as no skill is required to keep the tap at right angles.
Work efficiency improves.
また、加工品質を均一化できるので、作業能率の向上と
相まって加工原価を大幅に引下げ゛ることかで゛きる。Furthermore, since the processing quality can be made uniform, the processing cost can be significantly reduced along with the improvement of work efficiency.
さらに、加工中タップが加工物に対し常に直角にすなわ
ち一定角度に保たれるので、タップに無理な力が加わる
ことがなく、したがってタップの高寿命化を期待できる
とともに、タップの折損を著しく少なくすることができ
る。Furthermore, since the tap is always kept perpendicular to the workpiece during machining, that is, at a constant angle, no unreasonable force is applied to the tap, which can extend the life of the tap and significantly reduce the possibility of tap breakage. can do.
そして特に、本考案では案内体の先端面の中央部にV字
溝を形成し、その他の部分を平坦面としたことにより、
表面が平坦な板状などの加工物は勿論のこと、小物加工
物や棒状加工物などに対しても、タップを直角に保つこ
とができ、加工物の形状にかかわらず同様な効果が得ら
れるという利点がある。In particular, in the present invention, by forming a V-shaped groove in the center of the tip end surface of the guide body and making the other part a flat surface,
The tap can be kept perpendicular to workpieces such as plates with flat surfaces, as well as small workpieces and bar-like workpieces, and the same effect can be obtained regardless of the shape of the workpiece. There is an advantage.
また、タップ1の径が保持体3の内径に比較して相当細
い場合(例えば2〜4mm)でもタップ1を補助具2に
挿入固定し、この補助具2をタップ1と保持体3との間
に介挿することによって、種々の径のタップを保持体3
に対しぐらつきなく堅固に固定でき、またタップ1の位
置を保持体3の中心位置に正確に一致させることができ
る利点がある。Furthermore, even if the diameter of the tap 1 is considerably smaller than the inner diameter of the holder 3 (for example, 2 to 4 mm), the tap 1 can be inserted and fixed into the auxiliary tool 2, and this auxiliary tool 2 can be connected between the tap 1 and the holder 3. By inserting taps of various diameters between the holder 3
There are advantages in that the tap 1 can be firmly fixed without wobbling, and the position of the tap 1 can be precisely aligned with the center position of the holder 3.
この補助具2はタップ別に異なる内径を有し外径は保持
体3の内径に合った一定のものを用意することが好まし
いが、対象とするタップの径の範囲が狭い場合には、複
数種のタップに対し共用するようにしてもよい。It is preferable to prepare this auxiliary tool 2 with a different inner diameter for each tap and a fixed outer diameter that matches the inner diameter of the holder 3. However, if the target tap diameter range is narrow, multiple types may be used. It may be shared for all taps.
本考案は前記実施例に限定されるものではなく、例えば
案内体と回転体の連結構造等要旨を逸脱しない範囲で種
々変形して実施できるものである。The present invention is not limited to the embodiments described above, but can be implemented with various modifications, such as a connecting structure between a guide body and a rotating body, without departing from the spirit of the invention.
第1図は本考案の一実施例のタップホルダーの斜視図、
第2図は同断面図、第3図は同分解斜視図、第4図は同
タップホルダーを卓上形ハンドボールに装着した状態を
示す斜視図である。
1・・・・・・タップ、2・・・・・・補助具、3・・
・・・・保持体、6・・・・・・案内体、7・・・・・
・硬質ゴム板、8・・・・・・回転体、14・・・・・
・コイルばね、15・・・・・・卓上形ハンドボール。FIG. 1 is a perspective view of a tap holder according to an embodiment of the present invention;
FIG. 2 is a sectional view, FIG. 3 is an exploded perspective view, and FIG. 4 is a perspective view showing the tap holder attached to a tabletop handball. 1...Tap, 2...Auxiliary tool, 3...
...Holding body, 6...Guiding body, 7...
・Hard rubber plate, 8...Rotating body, 14...
・Coil spring, 15...Tabletop handball.
Claims (1)
有する筒状の補助具と、この補助具または前記タップが
挿着される筒状の保持体と、この保持体が遊挿されると
ともに、先端面の中央部にV字溝を形威しその他の部分
を平坦面部として、これらV字溝または平坦面部が加工
物に密接される肉厚筒状の案内体と、この案内体の基端
部に対し相対的に回転可能に一端が連結されるとともに
、前記保持体の底部を相対的に回転しないようにかつ前
記タップの先端部が前記案内体の先端面に対して出入し
得るように長手方向に移動可能に支持し、さらに他端が
回転体内に挿入され前記保持体の底部を前方方向に押圧
するコイルばねとからなるタップホルダーA cylindrical auxiliary tool having an inner diameter approximately close to the diameter of the tap into which the tap is inserted and fixed; a cylindrical holder into which the auxiliary tool or the tap is inserted; and a cylindrical holder into which the holder is loosely inserted; A thick-walled cylindrical guide body with a V-shaped groove formed in the center of the distal end surface and a flat surface part in the other part, and the V-shaped groove or the flat surface part is brought into close contact with the workpiece, and the base end of this guide body. One end is connected so as to be rotatable relative to the bottom part of the holder, and the tip part of the tap can move in and out of the tip surface of the guide body so that the bottom part of the holder does not rotate relative to the bottom part of the holder. A tap holder that is supported movably in the longitudinal direction and further includes a coil spring whose other end is inserted into a rotating body and presses the bottom of the holding body in the forward direction.
Priority Applications (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP5512779U JPS5917540Y2 (en) | 1979-04-24 | 1979-04-24 | Tap holder |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP5512779U JPS5917540Y2 (en) | 1979-04-24 | 1979-04-24 | Tap holder |
Publications (2)
Publication Number | Publication Date |
---|---|
JPS552578U JPS552578U (en) | 1980-01-09 |
JPS5917540Y2 true JPS5917540Y2 (en) | 1984-05-22 |
Family
ID=28950588
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
JP5512779U Expired JPS5917540Y2 (en) | 1979-04-24 | 1979-04-24 | Tap holder |
Country Status (1)
Country | Link |
---|---|
JP (1) | JPS5917540Y2 (en) |
-
1979
- 1979-04-24 JP JP5512779U patent/JPS5917540Y2/en not_active Expired
Also Published As
Publication number | Publication date |
---|---|
JPS552578U (en) | 1980-01-09 |
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