JPH044093B2 - - Google Patents
Info
- Publication number
- JPH044093B2 JPH044093B2 JP59247081A JP24708184A JPH044093B2 JP H044093 B2 JPH044093 B2 JP H044093B2 JP 59247081 A JP59247081 A JP 59247081A JP 24708184 A JP24708184 A JP 24708184A JP H044093 B2 JPH044093 B2 JP H044093B2
- Authority
- JP
- Japan
- Prior art keywords
- drill
- housing
- holder shaft
- polishing
- rotation angle
- 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 - Lifetime
Links
- 238000005498 polishing Methods 0.000 claims description 27
- 238000003780 insertion Methods 0.000 claims description 9
- 230000037431 insertion Effects 0.000 claims description 9
- 230000002093 peripheral effect Effects 0.000 claims description 7
- 238000005520 cutting process Methods 0.000 description 6
- 238000005553 drilling Methods 0.000 description 2
- 238000003825 pressing Methods 0.000 description 2
- 230000000694 effects Effects 0.000 description 1
- 238000009434 installation Methods 0.000 description 1
- 238000004519 manufacturing process Methods 0.000 description 1
- 238000000034 method Methods 0.000 description 1
- 238000003801 milling Methods 0.000 description 1
Classifications
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B24—GRINDING; POLISHING
- B24B—MACHINES, DEVICES, OR PROCESSES FOR GRINDING OR POLISHING; DRESSING OR CONDITIONING OF ABRADING SURFACES; FEEDING OF GRINDING, POLISHING, OR LAPPING AGENTS
- B24B3/00—Sharpening cutting edges, e.g. of tools; Accessories therefor, e.g. for holding the tools
- B24B3/24—Sharpening cutting edges, e.g. of tools; Accessories therefor, e.g. for holding the tools of drills
Landscapes
- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Finish Polishing, Edge Sharpening, And Grinding By Specific Grinding Devices (AREA)
Description
【発明の詳細な説明】
<産業上の利用分野>
この発明は鉄工用又は木工用、その他の穿孔ド
リルやドリル型のミーリングカツター等の刃先の
研摩に際して用いるドリル研摩用回転角調節装置
に関する。DETAILED DESCRIPTION OF THE INVENTION <Industrial Application Field> The present invention relates to a rotation angle adjusting device for polishing a drill used for polishing the cutting edge of a drilling drill, drill-type milling cutter, etc. for use in ironwork or woodwork.
<従来の技術>
一般に例えば第7図に示すような各種のドリル
の刃先の再研摩は、切削刃の中心が正確で且つ各
部の傾斜角(例えばすくい角やにげ角、シンニン
グ角等)や長さが、軸心に対して正確な回転対称
を維持する必要があり、その研摩は主として人手
によつてしかも作業者の感に頼つて行つていた。<Prior art> In general, the re-sharpening of the cutting edge of various drills as shown in FIG. It is necessary for the length to maintain accurate rotational symmetry with respect to the axis, and polishing has been done mainly by hand and relying on the operator's intuition.
またドリル研摩機に任意の傾斜角と決められた
回転角でドリルを保持して研摩する装置としては
実開昭52−96490号公報に示されるものが知られ
ている。 Furthermore, as a drill polisher for holding and polishing a drill at an arbitrary angle of inclination and a predetermined rotation angle, one disclosed in Japanese Utility Model Application Publication No. 52-96490 is known.
<発明が解決しようとする問題点>
しかし従来の人手による研摩では正確な研摩は
熟練した作業者の感に頼らなければならず、非能
率であるばかりでなく、例えば多数の規格化され
た寸法のドリルを同時に用いる多軸ボール盤等に
使用するドリルに要求される、寸法や切削性能の
均一化が難しく、これらの品質性能が不均一なド
リルを用いなければならない不便があつた。<Problems to be Solved by the Invention> However, in conventional manual polishing, accurate polishing must rely on the senses of a skilled worker, which is not only inefficient, but also requires a large number of standardized dimensions. It is difficult to make the dimensions and cutting performance uniform, which is required for drills used in multi-axis drilling machines, etc., which use several drills at the same time, and it is inconvenient to use drills with uneven quality performance.
また前掲した公報に示される従来の回転角調節
装置では、ドリルを固定する際の回転角を調整す
る部材を固定ダボ等に定角度で当接させて角度を
決める形式であるため、該調整部材の形状が複雑
で且つ高精度を求められ、コスト的にも高くなる
ほか、ドリル径とドリルの溝数毎に角度調整部材
を取替える必要があるという欠点があつた。さら
にこの形式の角度調整部材では、平錐等のように
大半が円形断面でないドリルには殆ど使用できな
いという欠点があつた。 Furthermore, in the conventional rotation angle adjusting device shown in the above-mentioned publication, the angle is determined by making the member that adjusts the rotation angle when fixing the drill come into contact with a fixing dowel or the like at a fixed angle. The shape of the drill is complicated, high precision is required, the cost is high, and the angle adjustment member has to be replaced for each drill diameter and number of grooves. Furthermore, this type of angle adjusting member has the disadvantage that it can hardly be used with drills that do not have a circular cross section, such as a flat cone.
<問題点を解決するための手段>
この発明のドリル研摩用回転角調節装置は、テ
ーブル上にハウジング45をその端部が上下に揺
動可能な如く取付け、該ハウジング45にはホル
ダー軸49を回転自在に嵌合せしめるとともに、
前記ハウジング45とホルダー軸49側の周面部
には、ホルダー軸49を予め決められた複数の回
転姿勢で係脱自在にロツクするロツク手段を設
け、上記ホルダー軸49の先端にはドリル47を
常に軸心において着脱自在に把持するチヤツク5
1を取付けてなるドリル研摩用ホルダー装置と、
中心に上記ドリル47を挿通する挿通孔71を穿
設し、周壁には先端が該挿通孔71の中心に向か
つて突出する複数方向のプツシユボルト75をね
じ込んで設け、先端面若しくは周面にはドリル4
7及びホルダー軸49の回転角を示す目盛77を
付設したダイヤルリング73と先端部が該ダイヤ
ルリング73の端面又は周面に近接する如くハウ
ジング45側より突出し、ハウジング45に対す
るドリル47及びダイヤルリング73の相対的な
回転角の測定基準を与える基準突起63とからな
ることを特徴としている。<Means for Solving the Problems> In the rotation angle adjusting device for drill polishing of the present invention, a housing 45 is mounted on a table so that its ends can swing up and down, and a holder shaft 49 is attached to the housing 45. In addition to being rotatably fitted,
A locking means for releasably locking the holder shaft 49 in a plurality of predetermined rotational positions is provided on the circumferential surface of the housing 45 and the holder shaft 49 side, and a drill 47 is always attached to the tip of the holder shaft 49. Chuck 5 that can be detachably gripped at the axis
1, a drill polishing holder device,
An insertion hole 71 through which the drill 47 is inserted is bored in the center, and push bolts 75 in multiple directions, the tips of which protrude toward the center of the insertion hole 71, are screwed into the peripheral wall. 4
7 and a dial ring 73 provided with a scale 77 indicating the rotation angle of the holder shaft 49; It is characterized by comprising a reference protrusion 63 that provides a reference for measuring the relative rotation angle of.
<作用>
ドリル47はチヤツク51を介してホルダー軸
49の先端に固定的且つ該軸49と同心的に保持
され、該ドリル47の突出端には中央の挿通孔7
1によりダイヤルリング73を挿通し、プツシユ
ボルト75をそれぞれ等量だけねじ込むことによ
つて、ドリル断面及びプツシユボルト75の位置
が相互に等しい回転対称をなしているので、ドリ
ル47に対してダイヤルリング73は少なくとも
一方向の回転駆動関係では必ず一定角度関係を保
つことになり、両者の相対的な角度関係は一定に
設定される。そしてこの関係は同じタイプのドリ
ルについては常に一定であり、固定された回転砥
石1に対する押接角度も決められる。<Function> The drill 47 is fixedly held at the tip of the holder shaft 49 via the chuck 51 and concentrically with the shaft 49, and the protruding end of the drill 47 has a central insertion hole 7.
1, by inserting the dial ring 73 and screwing in the push bolts 75 by the same amount, the drill cross section and the position of the push bolts 75 are rotationally symmetrical to each other. A constant angular relationship is always maintained in the rotational drive relationship in at least one direction, and the relative angular relationship between the two is set constant. This relationship is always constant for drills of the same type, and the pressing angle with respect to the fixed rotary grindstone 1 is also determined.
このときドリルの目数に応じてハウジング45
に対するホルダー軸49のロツク手段(位置決め
キー52とキー溝46)が選択され、例えば二つ
目ドリルでは180°、三つ目ドリルでは120°の等角
度位置でロツクできるようにして予めロツクして
おく。 At this time, depending on the number of drill holes, the housing 45
The locking means (positioning key 52 and keyway 46) of the holder shaft 49 is selected, and for example, the second drill can be locked at an equal angular position of 180°, and the third drill can be locked at an equal angle of 120°. put.
その結果、当初上記のように相対的な関係をセ
ツトしたドリルに対しては、ドリル研摩に最も適
した状態で、端面の目盛77と基準目盛65との
相対関係の値を読みとつておけば、例えば二つ目
のドリルの場合は一方の研摩完了後ドリルを180°
回転させてセツトし、その状態で他方の刃先の研
摩を行えば双方の目が完全な回転対称をなして研
摩される。 As a result, for a drill whose relative relationship is initially set as described above, it is necessary to read the value of the relative relationship between the scale 77 on the end face and the reference scale 65 in the state most suitable for drill polishing. For example, in the case of the second drill, rotate the drill 180° after polishing one side.
If you rotate it to set it and then polish the other edge in this state, both edges will be polished in perfect rotational symmetry.
さらに同型の他のドリルに対しても、ホルダー
軸49に固定したドリルにダイヤルリング73を
挿入すれば、既にドリルとダイヤルリング73の
相対的な角度関係は前のドリルで決められている
ので、そのまま前に設定された目盛と同様な目盛
に合わせてドリル回転をセツトし、前記の場合と
同様に研摩すれば良い。 Furthermore, for other drills of the same type, if the dial ring 73 is inserted into the drill fixed to the holder shaft 49, the relative angular relationship between the drill and the dial ring 73 has already been determined by the previous drill. Just set the drill rotation according to the same scale as the previously set scale and grind in the same way as in the previous case.
<実施例>
第1図〜第4図はこの発明の回転角調節装置を
応用したドリル研摩用ホルダー装置を示し、この
装置は回転砥石1を軸支した研摩機テーブル3上
にボルト5等により着脱自在に取り付けられる。<Example> Figures 1 to 4 show a drill polishing holder device to which the rotation angle adjusting device of the present invention is applied. Can be attached and detached.
装置の底部には上記ボルト5によつて取り付け
られる固定テーブル7が設けられ、該固定テーブ
ル7上にはそれぞれ水平方向に摺動する横テーブ
ル9、縦テーブル11、回動テーブル13とが順
次重ね合わされてなる可動テーブル15が載置さ
れている。固定テーブル7と横テーブル9は横方
向を向いた横あり17で、また横テーブル9と縦
テーブル11は縦方向を向いた縦あり19とでそ
れぞれ左右又は前後方向にスライド自在に結合さ
れており、回動テーブル13は縦テーブル11上
の平面に載置され、前端を垂直なピン21で軸支
されて水平方向に回動調節自在な機構となつてい
る。 A fixed table 7 is provided at the bottom of the device, which is attached by the bolts 5. On the fixed table 7, a horizontal table 9, a vertical table 11, and a rotary table 13, which slide in the horizontal direction, are sequentially stacked. A movable table 15 is placed thereon. The fixed table 7 and the horizontal table 9 are connected by a horizontal dowel 17 facing in the horizontal direction, and the horizontal table 9 and the vertical table 11 are connected by a vertical dovetail 19 facing in the vertical direction so as to be slidable in the left-right or front-back direction, respectively. The rotary table 13 is placed on a flat surface on the vertical table 11, and its front end is pivotally supported by a vertical pin 21, so that the rotary table 13 can be rotated in the horizontal direction.
前記横テーブル9の左右端及び縦テーブル11
の後端にはそれぞれ端板23が締着されて各テー
ブルのスライドのストツパーを形成しており、さ
らに各端板23の中央には調整ねじ25が貫通し
てねじ込まれ、各テーブルのスライド量を調節で
きる構造である。また回動テーブル13にはピン
21を中心とした円弧をなすスリツト27が穿設
され、ここに蝶ねじ等よりなるセツトボルト29
が貫通され、縦テーブル11上にねじ込まれてお
り、これを締着固定することによつて、回動テー
ブル13の水平方向の角度が設定される。 The left and right ends of the horizontal table 9 and the vertical table 11
An end plate 23 is fastened to each rear end to form a stopper for the slide of each table, and an adjustment screw 25 is screwed through the center of each end plate 23 to adjust the amount of slide of each table. It has an adjustable structure. Further, a slit 27 forming an arc centered on the pin 21 is bored in the rotary table 13, and a set bolt 29 made of a thumbscrew or the like is inserted into the slit 27.
is penetrated and screwed onto the vertical table 11, and by tightening and fixing this, the horizontal angle of the rotary table 13 is set.
固定テーブル7と縦テーブル11の各左側面に
はスラスト方向の軸心をもつ軸受部31がその内
部に球面軸受又はたいこ形ローラーベアリング等
からなる自動調心軸受33をスラスト方向に嵌合
した状態で突出するようにビス35により取り付
けられ、各自動調心軸受33,33は上下方向の
軸心を同心としている。 On each left side of the fixed table 7 and the vertical table 11, a bearing part 31 having an axis in the thrust direction is fitted with a self-aligning bearing 33 made of a spherical bearing or a hoist-shaped roller bearing in the thrust direction. The self-aligning bearings 33, 33 are attached with screws 35 so as to protrude from each other, and the vertical axes of the self-aligning bearings 33, 33 are concentric.
そして上記各軸受33には棒状の装置レバー3
7の下端が嵌合され、このうち上方の軸受33は
レバー37がスラスト方向にスライドしないよう
に、また下方の軸受33にはレバー35がスラス
ト方向にスライドできるようにそれぞれ嵌合され
ている。このためレバー37の上端を前後左右そ
の他任意の方向に回動させると、レバー37のて
この作用により縦テーブル11又は横テーブル
9、若しくは両テーブルが共に前後方向又は左右
方向にスライドし、最上団の回動テーブル13の
位置が任意に定まる。 Each bearing 33 has a rod-shaped device lever 3.
The lower ends of the levers 7 are fitted, and the upper bearing 33 is fitted so that the lever 37 does not slide in the thrust direction, and the lower bearing 33 is fitted so that the lever 35 can slide in the thrust direction. Therefore, when the upper end of the lever 37 is rotated in the front, back, left, right, or other arbitrary direction, the lever action of the lever 37 causes the vertical table 11 or the horizontal table 9, or both tables to slide back and forth or in the left and right direction, causing the top The position of the rotary table 13 is arbitrarily determined.
さらに回動テーブル13の後端はピン21を中
心にした円弧に沿つてアールを形成しており、こ
こには水平角目盛39が刻設してあり、縦テーブ
ル11上に刻設した基準目盛(図示しない)と対
応せしめて回動テーブル13の回動角を読み取る
ことができる構造になつている。 Further, the rear end of the rotary table 13 forms a radius along an arc centered on the pin 21, and a horizontal angle scale 39 is engraved here, and a reference scale engraved on the vertical table 11 is engraved here. (not shown) so that the rotation angle of the rotation table 13 can be read.
回動テーブル13上の後方位置の左右端には2
本の支柱41,43が対向して直立するように取
り付けられ、該支柱41,43の間には中空の直
方体よりなるハウジング45が回動自在に支軸4
4により軸支され、該ハウジング45内にはドリ
ル47を挿入軸支するホルダー軸49を回転自在
に挿通軸支しており、ドリル47はホルダー軸4
9の前端のチヤツク51を介して突出長さ調節が
可能な如く固定的に締着支持されている。 At the left and right ends of the rear position on the rotary table 13, there are two
Book supports 41 and 43 are mounted so as to face each other and stand upright, and between the support posts 41 and 43, a housing 45 made of a hollow rectangular parallelepiped is rotatably attached to the support shaft 4.
A holder shaft 49 for inserting and supporting a drill 47 is rotatably inserted into the housing 45 and supported by the holder shaft 4.
9 is fixedly fastened and supported through a chuck 51 at the front end of 9 so that the protrusion length can be adjusted.
チヤツク51は筒状のホルダー軸49先端外周
にねじ込まれるリング状のロツクナツト56と、
その前端内部に回転自在に位置決めして嵌合さ
れ、内周面が後向きに広がるテーパー面を形成し
ているスラストリング60と、前端外周が該スラ
ストリング60の内面と適合するテーパー面をな
し、後部がホルダー軸49の前方内周の前向きに
広がるテーパー面に適合するテーパー面を形成し
ているスリーブ状のコレツト58とからなつてい
る。該コレツト58は上述のように前端外周と後
方外周がともに逆向きのテーパーを形成し、その
周壁には前方と後方から交互に多数の割溝58a
が切設され、後端をホルダー軸49に差し込ん
で、ロツクナツト56をねじ込むと、ロツクナツ
ト56とホルダー軸49の各内周面による押圧で
コレツト58の内径が一様に収縮し、緩めると拡
大される。この作用によりコレツト58内にドリ
ル47を差し込んでロツクナツト56を操作する
と、ドリル47はその把持位置を問わず全周を一
様に締め付けられ、軸心も定まる構造である。 The chuck 51 includes a ring-shaped lock nut 56 that is screwed onto the outer periphery of the tip of the cylindrical holder shaft 49;
A thrust ring 60 is rotatably positioned and fitted inside the front end, and has an inner peripheral surface forming a tapered surface that expands rearward, and an outer peripheral surface of the front end has a tapered surface that matches the inner surface of the thrust ring 60, The rear part consists of a sleeve-shaped collet 58 forming a tapered surface that matches the tapered surface that widens forward on the front inner circumference of the holder shaft 49. As described above, the front end outer periphery and the rear outer periphery of the collet 58 are both tapered in opposite directions, and a large number of grooves 58a are formed alternately from the front and rear on the circumferential wall.
is cut, and when the rear end is inserted into the holder shaft 49 and the lock nut 56 is screwed in, the inner diameter of the collet 58 contracts uniformly due to the pressure from the inner peripheral surfaces of the lock nut 56 and the holder shaft 49, and when loosened, it expands. Ru. Due to this action, when the drill 47 is inserted into the collet 58 and the lock nut 56 is operated, the drill 47 is tightened uniformly around the entire circumference regardless of the gripping position, and the axial center is also determined.
ホルダー軸49はハウジング45の前後端にお
いてベアリング62,62によつて回転自在に軸
支され、その内部中央には長さ調整ねじ64がね
じ込まれ、内部に挿入されるドリル47の後端が
当接し、その挿入深さをこれで調節する機構とな
つている。 The holder shaft 49 is rotatably supported by bearings 62, 62 at the front and rear ends of the housing 45, and a length adjustment screw 64 is screwed into the center of the inside of the holder shaft, so that the rear end of the drill 47 inserted into the inside of the holder shaft is screwed into the center of the holder shaft. It is a mechanism that allows you to adjust the insertion depth.
ハウジング45の後端に突出するホルダー軸4
9の突出端には、周面対称位置に各1個のキー溝
46を刻設した位置決めリング48とホルダー軸
49を回転操作する把手リング50が一体的に嵌
合固着され、ハウジング45上面後端の中央には
上記キー溝46に着脱自在に係合する鈎形の位置
決めキー52が後向きに起伏回動自在に軸支さ
れ、54は該位置決めキー52を軸支するように
ハウジング上に取り付けられたキープレートで、
その上面には位置決めキー52の起立状態を保持
するようにマグネツト42を固着しておくことも
できる。上記キー溝46と位置決めキー52はハ
ウジング45に対するホルダー軸49のロツク手
段である。 Holder shaft 4 protruding from the rear end of the housing 45
A positioning ring 48 having one keyway 46 carved at symmetrical positions on the circumference and a handle ring 50 for rotating the holder shaft 49 are integrally fitted and fixed to the protruding end of the housing 45 at the rear of the upper surface of the housing 45. At the center of the end, a hook-shaped positioning key 52 that removably engages with the keyway 46 is pivotally supported so as to be rotatable in upward and downward directions, and 54 is mounted on the housing so as to pivotally support the positioning key 52. With the key plate
A magnet 42 may be fixed to the upper surface of the positioning key 52 so as to maintain the positioning key 52 in an upright position. The keyway 46 and the positioning key 52 are means for locking the holder shaft 49 to the housing 45.
ハウジング45は支軸44を中心として少なく
とも90°の回動角を有し、上向きの直立状態から、
水平前向きの状態まで回動する。そしてハウジン
グ45の右側面後端部にはストツパーピン53が
突設され、ハウジング45が上向きに直立した状
態で、該ストツパーピン53が、右側の支柱43
の後面に当接して停止する構造となつている。ま
たハウジング45の右側面前端には角柱状の取付
プレート55が上下方向に固着され、その下端に
は先端が後方に突出するような角度調整ねじ57
がねじ込まれ、この角度調整ねじ57の後方突出
端又は取付プレート55の後面が、支柱43の前
面に当接することによりハウジング45は前方に
傾倒した状態で停止する。したがつてこの角度調
整ねじ57を調節することによりハウジング45
及びホルダー軸49の前傾角度が調節設定される
ことになる。 The housing 45 has a rotation angle of at least 90° about the support shaft 44, and rotates from an upwardly oriented upright position to
Rotate until it faces horizontally forward. A stopper pin 53 is protruded from the rear end of the right side of the housing 45, and when the housing 45 is upright, the stopper pin 53 is connected to the right column 43.
The structure is such that it stops when it comes into contact with the rear surface of the machine. Further, a prismatic mounting plate 55 is vertically fixed to the front end of the right side of the housing 45, and an angle adjustment screw 57 whose tip protrudes rearward is attached to the lower end of the mounting plate 55.
is screwed in, and the rear protruding end of the angle adjustment screw 57 or the rear surface of the mounting plate 55 comes into contact with the front surface of the support column 43, so that the housing 45 is stopped in a forward tilted state. Therefore, by adjusting this angle adjustment screw 57, the housing 45
And the forward tilt angle of the holder shaft 49 is adjusted and set.
他方、上記調整ねじ57によるハウジング45
の回動角の設定は、左側の支柱41の内面に内向
きに固着された角度目盛板59と、ハウジング4
5の上面中央左端に直立固着せしめられた指針6
1とによつて、指示角度を見ながら調節する機構
となつている。 On the other hand, the housing 45 by the adjustment screw 57
The rotation angle is set using an angle scale plate 59 fixed inward to the inner surface of the left column 41 and the housing 4.
Pointer 6 fixed upright on the left end of the top surface of 5
1, it is a mechanism that allows you to adjust the indicated angle while looking at it.
また、前記取付プレート55の前面でホルダー
軸49と同一高さ位置には、該ホルダー軸49と
平行に軸状の基準突起63が突設され、該基準突
起63の前端面中心には、水平方向の基準目盛6
5が刻印されるとともに、該基準突起にはスリー
ブ状のバランスウエイト67がスライド自在に嵌
合され、周面からねじ込まれた止めねじ69によ
つて任意の位置にセツトされる。 Further, a shaft-shaped reference protrusion 63 is provided on the front surface of the mounting plate 55 at the same height as the holder shaft 49 and extends parallel to the holder shaft 49. Direction reference scale 6
5 is engraved on the reference protrusion, and a sleeve-shaped balance weight 67 is slidably fitted into the reference protrusion and set at an arbitrary position by a set screw 69 screwed in from the circumferential surface.
一方、チヤツク51より定寸に突出せしめられ
たドリル47には、中心に挿通孔71を穿設し、
前面周縁に回転対称をなす等角度の目盛77を付
したダイヤルリング73が挿通される。このダイ
ヤルリング73の後部周壁にはその求心方向に向
つて対称位置からプツシユボルト75が2本ねじ
込まれ、このプツシユボルト75で断面が回転対
称をなすドリル47を第5図に示すように押接又
は接触することにより、ダイヤルリング73自体
をドリル47及びホルダー軸49の軸心上に保持
する機構を有する。 On the other hand, an insertion hole 71 is drilled in the center of the drill 47 which is made to protrude from the chuck 51 to a fixed size.
A dial ring 73 having equiangular graduations 77 that are rotationally symmetrical on the front periphery is inserted. Two push bolts 75 are screwed into the rear circumferential wall of the dial ring 73 from symmetrical positions toward the centripetal direction, and the push bolts 75 press or contact the drill 47, whose cross section is rotationally symmetrical, as shown in FIG. This provides a mechanism for holding the dial ring 73 itself on the axes of the drill 47 and the holder shaft 49.
上記のようにドリル47に挿入されてセツトさ
れたダイヤルリング73の端面と基準突起63の
端面は略同一平面上にあり、目盛77は基準目盛
65と対応している。そして断面が対称若しくは
回転対称をなす各種のドリルの2対称方向の数種
類の研摩面の角度に合わせて、回転砥石1に対応
したホルダー装置の前後左右位置及びホルダー軸
49の左右方向及び上下方向の角度をセツトす
る。この際必要に応じて回動テーブル13の左右
回動角度も調節セツトしておく。 The end face of the dial ring 73 inserted and set into the drill 47 as described above and the end face of the reference protrusion 63 are substantially on the same plane, and the scale 77 corresponds to the reference scale 65. Then, the longitudinal and lateral positions of the holder device corresponding to the rotary grindstone 1 and the lateral and vertical directions of the holder shaft 49 are adjusted in accordance with the angles of several types of polishing surfaces in two symmetrical directions of various drills whose cross sections are symmetrical or rotationally symmetrical. Set the angle. At this time, the horizontal rotation angle of the rotation table 13 is also adjusted and set as required.
次いでドリル47の回転角を合わせると、基準
目盛65と目盛77の対応関係が決まるので、そ
の位置で把手リング50及び位置決めリング48
のホルダー軸49に対する回転角を決めて、位置
決めキー52をキー溝46に係合しドリル47の
回転角をセツテイングする。 Next, when the rotation angle of the drill 47 is adjusted, the correspondence between the reference scale 65 and the scale 77 is determined, so the handle ring 50 and the positioning ring 48 are adjusted at that position.
The rotation angle of the drill 47 with respect to the holder shaft 49 is determined, and the positioning key 52 is engaged with the keyway 46 to set the rotation angle of the drill 47.
次いでハウジング45を起立せしめた状態から
前方に傾倒せしめるとともに操作レバー37で横
テーブル9及び縦テーブル11を左右動させなが
ら、ドリル47の先端を順次回転中の回転砥石1
の周面に押接せしめて研摩を行う。このときドリ
ル47はハウジング45やバランスウエイト67
の自重で自然に前方に傾倒するが、角度調整ねじ
57でセツトされた角度で停止し、1つの研摩面
の研摩を完了する。 Next, the housing 45 is tilted forward from the upright state, and the horizontal table 9 and the vertical table 11 are moved left and right using the operating lever 37, while the tip of the drill 47 is sequentially rotated by the rotary grindstone 1.
Polishing is performed by pressing it against the circumferential surface of the At this time, the drill 47 is connected to the housing 45 and the balance weight 67.
Although it naturally tilts forward due to its own weight, it stops at the angle set by the angle adjustment screw 57, and the polishing of one polishing surface is completed.
次の工程では位置決めキー52を外してドリル
47及びホルダー軸49を180°回転させ、もう一
方のキー溝46に位置決めキー52を係合させて
セツトし、再度前記同様の研摩を行うが、このと
き操作レバー37による可動テーブルのスライド
調節は殆ど不要である。この作業により断面及び
刃先が2点対称の場合は当該研摩面の研摩を完了
する。 In the next step, the positioning key 52 is removed, the drill 47 and the holder shaft 49 are rotated 180 degrees, the positioning key 52 is engaged and set in the other key groove 46, and the same polishing as described above is performed again. There is almost no need to adjust the slide of the movable table using the operating lever 37. By this operation, if the cross section and the cutting edge are symmetrical at two points, the polishing of the polished surface is completed.
上記使用法のほか、ドリル47の位置と向きを
決めて、回転中の砥石1にハウジング45を上か
ら下に、あるいは上から下に揺動させながらドリ
ル47を押接して研摩することも可能である。 In addition to the usage described above, it is also possible to determine the position and orientation of the drill 47 and press the drill 47 against the rotating grindstone 1 while swinging the housing 45 from top to bottom or from top to bottom for polishing. It is.
なお、ドリル47の断面が三角形、六角形ある
いは三つ目ドリルのようにらせんが三条になつて
いる場合はプツシユボルト75もこれに対応して
三方向にしたダイヤルリング73を準備すること
が望ましく、また切削刃が三つ目である場合はこ
れに応じてダイヤルリング73の目盛77も三等
分された回転対称のものが望ましく且つこれに対
応して位置決めリング48のキー溝46も三等分
された等角度位置に配設することが望ましい。 If the cross section of the drill 47 is triangular, hexagonal, or has three spirals like a three-eyed drill, it is desirable to prepare a dial ring 73 with three directions for the push bolt 75 as well. Furthermore, if the cutting blade is a third one, it is desirable that the scale 77 of the dial ring 73 be rotationally symmetrical and divided into three equal parts, and correspondingly, the key groove 46 of the positioning ring 48 should also be divided into three equal parts. It is desirable to arrange them at equal angular positions.
またドリル研摩時のハウジング45の前傾作用
は図示例の如くバランスウエイト67の荷重によ
るほか、支軸44に弱いつる巻ばねを装着し、あ
るいは取付プレート55の下端と可動テーブル1
5の上面との間に弱いコイルスプリング(いずれ
も図示しない)等を張設して、スプリングによる
復元作用を利用することもできる。 Further, the forward tilting action of the housing 45 during drill polishing is not only caused by the load of the balance weight 67 as shown in the figure, but also by attaching a weak helical spring to the support shaft 44, or by attaching the lower end of the mounting plate 55 to the movable table 1.
It is also possible to use the restoring action of the spring by installing a weak coil spring (none of which is shown) or the like between it and the top surface of the spring.
第6図は、第7図C,Dに示すような平型断面
とクロス断面のドリルに対してダイヤルリング7
3をセツトし、その所定の角度の目盛を読む場合
の状態図を示し、これらはいずれも二方向の回転
対称断面をしているので、目盛77及びキー溝4
6及びプツシユボルト75はいずれも二方向の線
対称又は回転対称をなしている。 Figure 6 shows the dial ring 7 for drills with flat cross section and cross cross section as shown in Figure 7 C and D.
3 is set and the scale at a predetermined angle is read. Since both of these have rotationally symmetric cross sections in two directions, the scale 77 and the keyway 4 are
6 and the push bolt 75 are both linearly symmetrical or rotationally symmetrical in two directions.
上記のほか、三角形、六角形の断面のように多
数方向の回転対称又は線対称の断面のドリルに
も、プツシユボルト75の数や角度、ダイヤルリ
ング73の目盛77をかえることにより容易に対
応することができる。 In addition to the above, drills with rotationally symmetric or line symmetric cross sections in multiple directions, such as triangular or hexagonal cross sections, can be easily accommodated by changing the number and angle of the push bolts 75 and the scale 77 of the dial ring 73. I can do it.
<発明の効果>
この発明は以上の如く構成される結果、ホルダ
ー軸49の回動角がハウジング45との間に設け
たロツク手段により自由に選択決定できるので、
任意の研摩角が得られ、ダイヤルリング73と基
準突起63とにより、ドリル研摩時の回動角が正
確な目盛で決められ、1本のドリルも1回の角度
設定で、特に同一種類の研摩は順次定角度づつ回
動させるだけで多数本の研摩が可能となる。即ち
1回角度設定すれば同一長さの同一径の同種のド
リルは何本でも連続して研摩できるので、作業能
率も良く再研摩の仕上がりが均一化できまた素人
でもドリル刃先形状さえ決まれば比較的容易且つ
正確に研摩できる利点がある。<Effects of the Invention> As a result of the present invention configured as described above, the rotation angle of the holder shaft 49 can be freely selected and determined by the locking means provided between the holder shaft 49 and the housing 45.
Any polishing angle can be obtained, and the dial ring 73 and reference protrusion 63 allow the rotation angle during drill polishing to be determined on an accurate scale. It is possible to polish a large number of items by simply rotating them one after another by a certain angle. In other words, by setting the angle once, you can continuously polish any number of drills of the same type with the same length and diameter, which improves work efficiency and ensures a uniform re-polishing finish, and even an amateur can compare the drills once the shape of the drill tip is determined. It has the advantage of being easy and accurate to polish.
またドリル角の設定が上記ロツク手段で対応で
きる範囲で行なわれるために、ロツク手段は多種
多様の刻みが可能な構造にでき、ダイヤルリング
もドリル挿通孔の大きさの範囲内、複数のプツシ
ユボルトの対応できる範囲内、目盛の範囲内で多
種類のドリルに対し多様な研摩対応ができるとい
う利点があり、さらにダイヤルリングは従来この
種の角度調整部材に比して構造も簡単で、目盛以
外は特に高精度を要しないので製造コストも低く
操作も簡単である等多くの特徴を備えている。 In addition, since the drill angle can be set within the range that can be accommodated by the locking means, the locking means can have a structure that allows for a wide variety of increments, and the dial ring can be set within the size of the drill insertion hole. It has the advantage of being able to handle various types of polishing for many types of drills within the applicable range and range of the scale.Furthermore, the dial ring has a simpler structure compared to conventional angle adjustment members of this type, and other than the scale It has many features such as low manufacturing cost and easy operation since it does not require particularly high precision.
第1図は本発明の一実施例を示す装置の全体斜
視図、第2図は同じくその取付状態を示す左右側
面図、第3図は装置の背面図、第4図は装置のホ
ルダー軸の軸まわりの構造を示す断面図、第5図
は本発明装置によるドリルの回転停止位置(角
度)の読みとり及び調節方法を示す要部端面図、
第6図A,Bは同じく他のドリルの場合の角度調
節状態を示す端面図、第7図はドリルの刃先構造
の種類を示す端部斜視図である。
1:回転砥石、3:研摩機テーブル、5:ボル
ト、7:固定テーブル、9:横テーブル、11:
縦テーブル、13:回動テーブル、15:可動テ
ーブル、17:横あり、19:縦あり、21:ピ
ン、23:端板、25:調整ねじ、27:スリツ
ト、29:セツトボルト、31:軸受部、33:
軸受、35:ビス、37:操作レバー、39:水
平角目盛、41,43:支柱、44:支軸、4
5:ハウジング、46:キー溝、47:ドリル、
48:位置決めリング、49:ホルダー軸、5
0:把手リング、51:チヤツク、52:位置決
めキー、53:ストツパーピン、54:キープレ
ート、55:取付プレート、57:角度調整ね
じ、59:角度目盛板、61:指針、63:基準
突起、65:基準目盛、67:バランスウエイ
ト、69:止めねじ、71:挿通孔、73:ダイ
ヤルリング、75:プツシユボルト、77:目
盛。
Fig. 1 is an overall perspective view of the device showing one embodiment of the present invention, Fig. 2 is a left and right side view showing the installation state, Fig. 3 is a rear view of the device, and Fig. 4 is a view of the holder shaft of the device. 5 is a sectional view showing the structure around the shaft; FIG. 5 is an end view of the main parts showing a method for reading and adjusting the rotation stop position (angle) of the drill using the device of the present invention;
6A and 6B are end views showing the angle adjustment state of another drill, and FIG. 7 is an end perspective view showing the types of the cutting edge structure of the drill. 1: Rotating grindstone, 3: Polishing machine table, 5: Bolt, 7: Fixed table, 9: Horizontal table, 11:
Vertical table, 13: Rotating table, 15: Movable table, 17: Horizontal, 19: Vertical, 21: Pin, 23: End plate, 25: Adjustment screw, 27: Slit, 29: Set bolt, 31: Bearing part , 33:
Bearing, 35: Screw, 37: Operation lever, 39: Horizontal angle scale, 41, 43: Support column, 44: Support shaft, 4
5: Housing, 46: Keyway, 47: Drill,
48: Positioning ring, 49: Holder shaft, 5
0: Handle ring, 51: Chuck, 52: Positioning key, 53: Stopper pin, 54: Key plate, 55: Mounting plate, 57: Angle adjustment screw, 59: Angle scale plate, 61: Pointer, 63: Reference protrusion, 65 : Reference scale, 67: Balance weight, 69: Set screw, 71: Insertion hole, 73: Dial ring, 75: Push bolt, 77: Scale.
Claims (1)
下に揺動可能な如く取付け、該ハウジング45に
はホルダー軸49を回転自在に嵌合せしめるとと
もに、前記ハウジング45とホルダー軸49側の
周面部には、ホルダー軸49を予め決められた複
数の回転姿勢で係脱自在にロツクするロツク手段
を設け、上記ホルダー軸49の先端にはドリル4
7を常に軸心において着脱自在に把持するチヤツ
ク51を取付けてなるドリル研摩用ホルダー装置
と、中心に上記ドリル47を挿通する挿通孔71
を穿設し、周壁には先端が該挿通孔71の中心に
向かつて突出する複数方向のプツシユボルト75
をねじ込んで設け、先端面若しくは周面にはドリ
ル47及びホルダー軸49の回転角を示す目盛7
7を付設したダイヤルリング73と、先端部が該
ダイヤルリング73の端面又は周面に近接する如
くハウジング45側より突出し、ハウジング45
に対するドリル47及びダイヤルリング73の相
対的な回転角の測定基準を与える基準突起63と
からなるドリル研摩用回転角調節装置。 2 ロツク手段がハウジング45とホルダー軸4
9側に設けられた位置決めキー52と、該位置決
めキー52と定位置において係脱自在に係合する
複数のキー溝46とからなる特許請求の範囲第1
項に記載のドリル研摩用回転角調節装置。[Scope of Claims] 1. A housing 45 is mounted on a table so that its ends can swing up and down, and a holder shaft 49 is rotatably fitted into the housing 45, and the housing 45 and the holder shaft 49 are A locking means for releasably locking the holder shaft 49 in a plurality of predetermined rotational positions is provided on the side peripheral surface, and a drill 4 is provided at the tip of the holder shaft 49.
A drill polishing holder device is provided with a chuck 51 that removably holds the drill 7 at its axis, and an insertion hole 71 through which the drill 47 is inserted in the center.
A multi-directional push bolt 75 is provided in the peripheral wall, the tip of which protrudes toward the center of the insertion hole 71.
A scale 7 indicating the rotation angle of the drill 47 and the holder shaft 49 is provided on the tip surface or peripheral surface.
7 attached thereto, and a dial ring 73 with a tip protruding from the housing 45 side so as to be close to the end surface or circumferential surface of the dial ring 73, and the housing 45
A rotation angle adjustment device for drill polishing, which comprises a reference protrusion 63 that provides a reference for measuring the relative rotation angle of the drill 47 and dial ring 73. 2 The locking means is the housing 45 and the holder shaft 4.
Claim 1 consisting of a positioning key 52 provided on the 9 side and a plurality of key grooves 46 that removably engage with the positioning key 52 at a fixed position.
Rotation angle adjustment device for drill polishing as described in .
Priority Applications (2)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP59247081A JPS61125758A (en) | 1984-11-22 | 1984-11-22 | Rotational angle adjusting device for grinding drill |
KR1019850003452A KR860003881A (en) | 1984-11-22 | 1985-05-20 | Rotary angle adjusting device for drilling |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP59247081A JPS61125758A (en) | 1984-11-22 | 1984-11-22 | Rotational angle adjusting device for grinding drill |
Publications (2)
Publication Number | Publication Date |
---|---|
JPS61125758A JPS61125758A (en) | 1986-06-13 |
JPH044093B2 true JPH044093B2 (en) | 1992-01-27 |
Family
ID=17158144
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
JP59247081A Granted JPS61125758A (en) | 1984-11-22 | 1984-11-22 | Rotational angle adjusting device for grinding drill |
Country Status (2)
Country | Link |
---|---|
JP (1) | JPS61125758A (en) |
KR (1) | KR860003881A (en) |
Families Citing this family (3)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
KR20040077237A (en) * | 2003-02-28 | 2004-09-04 | 최종진 | grinding material fixing jig |
JP5403342B2 (en) * | 2009-06-01 | 2014-01-29 | 孝登 緒方 | Tool grinding indexing device |
JP5896188B2 (en) * | 2014-07-09 | 2016-03-30 | インスターン カンパニー,リミテッド | Modular in-line micro drill bit re-polishing equipment |
Family Cites Families (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JPS5296490U (en) * | 1976-01-19 | 1977-07-19 |
-
1984
- 1984-11-22 JP JP59247081A patent/JPS61125758A/en active Granted
-
1985
- 1985-05-20 KR KR1019850003452A patent/KR860003881A/en not_active Application Discontinuation
Also Published As
Publication number | Publication date |
---|---|
JPS61125758A (en) | 1986-06-13 |
KR860003881A (en) | 1986-06-13 |
Similar Documents
Publication | Publication Date | Title |
---|---|---|
US4259814A (en) | Tool sharpening machine | |
JPS62500846A (en) | Super centering workpiece holder | |
US3039244A (en) | Tool grinding fixture | |
JPS6154542B2 (en) | ||
US4176499A (en) | Drill sharpener | |
US4205445A (en) | Dental surveyor | |
JPH044093B2 (en) | ||
US4974372A (en) | Universal device for sharpening drill bits | |
JPS60213451A (en) | Angle adjuster for vise | |
CA1178057A (en) | Precision drill bit resurfacing tool | |
US3512309A (en) | Fixture for supporting a tool subject to grinding | |
CN211103033U (en) | End milling cutter sharpening fixture | |
US4531328A (en) | Tooth rest for cutter grinder | |
JP2002066855A (en) | Rotating tool holding device and head removal jig | |
JPH0112935Y2 (en) | ||
JP2001525260A (en) | Tool fixing device for drive tool spindle of machine tool adjusted steplessly | |
US2932131A (en) | Tool grinder | |
JPH09309010A (en) | Drilling tool | |
CN201863053U (en) | Multi-edge end milling cutter grinder structure and cutter chuck | |
JPH02218542A (en) | Polishing machine and holding device for polishing machine | |
KR200159238Y1 (en) | Taper grinding apparatus for cylindrical grinder | |
US4100702A (en) | Fast grind fixture | |
US2141187A (en) | Grinding fixture | |
JPH0351044Y2 (en) | ||
US4176585A (en) | Universal panograph pattern |