JPH0729283B2 - Drill support device for deep hole drilling machine for woodworking - Google Patents
Drill support device for deep hole drilling machine for woodworkingInfo
- Publication number
- JPH0729283B2 JPH0729283B2 JP4075209A JP7520992A JPH0729283B2 JP H0729283 B2 JPH0729283 B2 JP H0729283B2 JP 4075209 A JP4075209 A JP 4075209A JP 7520992 A JP7520992 A JP 7520992A JP H0729283 B2 JPH0729283 B2 JP H0729283B2
- Authority
- JP
- Japan
- Prior art keywords
- headstock
- drill
- bearing base
- moving
- fixed
- 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
Landscapes
- Drilling And Boring (AREA)
Description
【０００１】[0001]
【産業上の利用分野】近年、間伐材を有効に利用するた
めに、比較的細い丸太の四面を切除して角材として利用
することが行われている。このような角材、角材や丸太
材である一般の柱材、あるいは床柱などでは、柱材の中
心部分と周辺部分の含水率や収縮率の違いなどから乾燥
によってひび割れを生じることが知られている。ひび割
れを防止し、あるいは被加工物の内部を乾燥させるた
め、芯挽と称し柱の一側面にほぼ中心部にまで達する切
り込みを長手方向に加工することが行われている。この
芯挽き加工は、木質の収縮率の違いを切り込み部分が広
がることによって吸収し、柱の表面にひび割れが生じる
のを防止するものではあるが、柱材の用途によっては表
面に切り込みが現れること、切り込み部分が広がると柱
材として変形するという欠点があった。[Industrial field of use] In recent years, in order to effectively use thinned wood, it has been practiced to cut four relatively thin logs and use them as square lumber. It is known that such square timbers, general pillars such as timbers and logs, or floor pillars cause cracks due to drying due to differences in water content and shrinkage ratio between the central part and peripheral parts of the pillars. . In order to prevent cracks or to dry the inside of the work piece, a notch called "grinding" is performed on one side surface of the column in the longitudinal direction to reach almost the center. This core grinding process absorbs the difference in shrinkage rate of wood by expanding the notch and prevents cracks from occurring on the surface of the pillar, but depending on the purpose of the pillar material, the notch appears on the surface. However, there is a drawback that when the cut portion expands, it deforms as a pillar material.
【０００２】芯挽加工を施さないで柱材のひび割れを防
止するには、柱材の中心に貫通孔を穿ち木質の収縮を吸
収するのが有効な手段である。ところが、このような柱
材は長寸法であって、非常に深い孔を穿つ必要がある。
本発明は、上記場合のように深い孔を穿つための穿孔機
であって、長寸法のドリルが芯振れを生じないようにそ
の中間部分を支受する支受装置に関する発明である。In order to prevent cracking of the pillar material without performing core grinding, it is an effective means to form a through hole in the center of the pillar material and absorb the shrinkage of the wood. However, such a pillar material has a long dimension, and it is necessary to form a very deep hole.
The present invention relates to a drilling machine for drilling a deep hole as in the above case, and relates to a bearing device for bearing a middle portion of a long-sized drill so as not to cause runout.
【０００３】[0003]
【従来の技術】従来の一般的な木工用穿孔機、木工用ボ
ール盤は、主軸台によってドリルを片持ち式に支持し被
加工物を回転させるのが普通であった。本出願人は、長
寸法のドリルの基端部を被加工物に向けて進退する主軸
台に保持させ、先端部は固定軸受台に支受させるととも
に、ドリルの中間部を移動軸受台で支受させることによ
ってドリルになるべく芯振れを生じさせることなく、例
えば柱材に貫通孔を穿つといった深孔の加工ができる穿
孔機を開発した。また、長寸法のドリルの中間部分を支
受する支受装置として、主軸台よりも遅い速度で移動す
る移動軸受台を固定軸受台と主軸台の間に設ける思想
（特開平１−２４７１０２号）を発明している。2. Description of the Related Art In a conventional general woodworking boring machine and woodworking drilling machine, it is usual to rotate a workpiece by supporting a drill in a cantilever manner by a headstock. The applicant holds the base end of a long-sized drill on a headstock that advances and retreats toward the workpiece, supports the tip on a fixed bearing stand, and supports the middle part of the drill on a moving bearing stand. We have developed a drilling machine that can process deep holes, such as drilling through holes in pillars, without causing runout as much as a drill by receiving them. Further, as a supporting device for supporting an intermediate portion of a long-sized drill, a concept of providing a moving bearing stand that moves at a slower speed than the headstock between a fixed bearing stand and the headstock (JP-A-1-247102). Is inventing.
【０００４】[0004]
【発明が解決しようとする課題】本出願人の先の出願に
係る深孔穿孔機では、ドリルを被加工物に向けて押し出
す主軸台の移動にともなって、主軸台の移動速度よりも
遅い速度で移動軸受台を移動させている。具体的には移
動軸受台をシリンダーやロープによって強制的に移動さ
せることを提案している。ところが、移動軸受台を強制
的に移動させる場合は、その駆動装置を必要とし装置そ
のものが複雑なものとなる。本発明者らの研究の結果、
移動軸受台によるドリルの支受位置は固定軸受台と主軸
台との間に等間隔で配置するのが好ましい。しかしなが
ら、正確に等間隔でなくても一定の範囲内でドリルの中
間部分を支受すると十分に芯振れを回避できることが判
明した。このような実情に鑑み、本発明は、より簡単な
構造である自由に移動する移動軸受台を固定軸受台と主
軸台の間に配置してドリルの中間部分を支受し、かつこ
の移動軸受台が、常にドリルの芯振れを回避することが
できる範囲内に位置するような構造とすることを目的と
するものである。In the deep hole drilling machine according to the applicant's earlier application, the moving speed of the headstock, which pushes the drill toward the workpiece, is slower than the moving speed of the headstock. The moving bearing stand is moved by. Specifically, it is proposed to forcibly move the moving bearing stand with a cylinder or rope. However, in the case of forcibly moving the movable bearing stand, the drive device is required and the device itself becomes complicated. As a result of our research,
The support position of the drill by the moving bearing stand is fixed bearing stand and spindle.
It is preferable to arrange them at equal intervals between them and the table. But Naga
The drill within a certain range even if it is not exactly equidistant.
It was found that the core runout can be sufficiently avoided by supporting the interspace.
Revealed In view of such circumstances, the present invention provides a simpler method.
The structure of the movable bearing stand that moves freely is
Place it between the headstocks to support the middle part of the drill.
The moving bearing stand of the drill can always avoid the run-out of the drill.
The purpose is to have a structure that is located within the possible range .
【０００５】[0005]
【課題を解決するための手段】長寸法のドリル１はその
基端部を被加工物Ａに向けて進退する主軸台２に保持
し、先端部は固定軸受台３に支受せしめる。ドリル１の
中間部分は、主軸台２が移動するガイド杆２１，２１上
を移動するものであって、主軸台２と固定軸受台３の間
を自由に移動可能とした移動軸受台４で支受し、固定軸
受台３と移動軸受台４及び移動軸受台４と主軸台２はそ
れぞれ連結杆５及び８によって連結する。この連結杆５
及び８は、先方のものに一端部を固定し後方のものを貫
通して後端部には、隣接する移動軸受台もしくは主軸台
に対し抜け止めとなるストッパー６及び９を装着する。A base 1 of a long drill 1 is held on a headstock 2 which advances and retreats toward a workpiece A, and a tip thereof is supported by a fixed bearing base 3. The middle part of the drill 1 is on the guide rods 21 and 21 on which the headstock 2 moves.
Is supported by a moving bearing stand 4 which is freely movable between the headstock 2 and the fixed bearing stand 3, and the fixed bearing stand 3 and the moving bearing stand 4 and the moving bearing stand 4 and the spindle are supported. The base 2 is connected by connecting rods 5 and 8, respectively. This connecting rod 5
Numerals 8 and 8 fix one end to the front one and penetrate the rear one to the adjacent moving bearing base or headstock at the rear end.
Mounting the stopper 6 and 9 to be retained for.
【０００６】[0006]
【作用】主軸台２が最も後退した状態では、図１(a) に
示すようにドリル１の先端部が固定軸受台３によって支
受され、かつ移動軸受台４がその中間位置を支受してい
る。固定軸受台３と移動軸受台４の間隔、及び移動軸受
台４と主軸台２の間隔はストッパー６，９によって規制
される最も離れる間隔L1，L2となっているため、移動す
ることができない。When the headstock 2 is in the most retracted state, as shown in FIG. 1 (a), the tip of the drill 1 is supported by the fixed bearing base 3 and the moving bearing base 4 supports its intermediate position. ing. Since the distance between the fixed bearing stand 3 and the moving bearing stand 4 and the distance between the moving bearing stand 4 and the headstock 2 are the farthest distances L 1 and L 2 regulated by the stoppers 6 and 9, they can move. Can not.
【０００７】主軸台２が被加工物Ａに向けて移動を始め
ると図１(b) に示すように、ドリル１の先端は固定軸受
台３から突出して行き、先方に固定する被加工物Ａに対
し穿孔加工を開始する。このとき、移動軸受台４は固定
軸受台３と主軸台２との間を自由に移動できる状態でド
リル１の中間位置を支受する。すなわち、移動軸受台４
及び主軸台２は連結杆５及び８を摺動して相互に最も接
近する間隔と最も離れる間隔の一定の範囲でのみ遊動可
能となり、相互の間隔の合計が主軸台２と固定軸受台３
の間隔となっている。When the headstock 2 starts moving toward the work A, as shown in FIG. 1 (b), the tip of the drill 1 projects from the fixed bearing base 3 and is fixed to the work A. To start drilling. At this time, the movable bearing base 4 supports the intermediate position of the drill 1 while being freely movable between the fixed bearing base 3 and the headstock 2. That is, the moving bearing stand 4
The headstock 2 is slidable on the connecting rods 5 and 8 and is allowed to move only within a certain range between the closest distance and the farthest distance from each other. The total distance between the headstock 2 and the fixed bearing base 3
Has become the interval.
【０００８】主軸台１を最も前進する位置まで移動させ
ると図１(c) に示すように、固定軸受台３と移動軸受台
４及び主軸台２はそれぞれ最も接近し、その位置で停止
することになる。このように、移動軸受台４は主軸台２
が固定軸受台に向けて移動してゆくと、特に移動軸受台
４の移動のために駆動手段を設けていないにもかかわら
ず、常に固定軸受台３と主軸台２の間に位置するととも
に、固定軸受台３や主軸台２との間隔がドリル１の芯振
れを防止するのに必要な間隔L1，L2よりも広がることが
ない。すなわち、連結杆は主軸台の移動に関し前後端の
機械的ストッパーの働きをすることになる。When the headstock 1 is moved to the most forward position, the fixed bearing stand 3, the moving bearing stand 4 and the headstock 2 are closest to each other and stopped at that position, as shown in FIG. 1 (c). become. In this way, the moving bearing base 4 is the headstock 2
Moving toward the fixed bearing stand, it is always located between the fixed bearing stand 3 and the headstock 2 even though no drive means is provided for moving the moving bearing stand 4, and The distance between the fixed bearing base 3 and the headstock 2 does not become wider than the distances L 1 and L 2 required to prevent runout of the drill 1. That is, the connecting rod functions as a mechanical stopper at the front and rear ends with respect to the movement of the headstock.
【０００９】[0009]
【実施例】以下、本発明木工用深孔穿孔機におけるドリ
ル支受装置の実施例を添付の図面に基づいて説明する。
図１は本願発明に係るドリル支受装置を略示的に示す平
面図である。図１(a)に示すように、長尺のドリル１は
その基端部が被加工物Ａに向けて進退する主軸台２に保
持され、先端部は固定軸受台３に支受されるとともに、
ドリル１の中間部分は一つの移動軸受台４によって支受
している。DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENT An embodiment of a drill support device for a deep hole drilling machine for woodworking according to the present invention will be described below with reference to the accompanying drawings.
FIG. 1 is a plan view schematically showing a drill support device according to the present invention. As shown in FIG. 1 (a), a long drill 1 has its base end held by a headstock 2 which advances and retreats toward a workpiece A, and its tip end supported by a fixed bearing base 3. ,
The middle part of the drill 1 is supported by one moving bearing stand 4.
【００１０】固定軸受台３には、ドリル１と平行に連結
杆５の一端を固定し、他端は移動軸受台４を遊貫通して
その先端に抜け止めとなるストッパー６を設けている。
連結杆５には、固定軸受台３から一定寸法のl1のところ
に別のストッパー７を設け、移動軸受台４が固定軸受台
３との相対関係において連結杆５によって連結される最
大間隔L1のうち一定寸法l1を除くストッパー６と７の間
のL1' の範囲で自由に摺動可能とする。固定軸受台３か
らの一定寸法l1は、固定軸受台３と移動軸受台４とを最
も接近させることができる寸法で、移動軸受台４が固定
軸受台３に衝突する現象を回避するものとする。On the fixed bearing base 3, one end of the connecting rod 5 is fixed in parallel with the drill 1, and the other end is provided with a stopper 6 which loosely penetrates the moving bearing base 4 and prevents it from coming off.
The connecting rod 5 is provided with another stopper 7 at a fixed dimension l 1 from the fixed bearing base 3, and the movable bearing base 4 is connected by the connecting rod 5 in a relative relationship with the fixed bearing base 3 so that the maximum distance L It is possible to freely slide in the range of L 1 'between the stoppers 6 and 7 except the constant dimension l 1 of 1 . The fixed dimension l 1 from the fixed bearing stand 3 is a dimension that allows the fixed bearing stand 3 and the moving bearing stand 4 to be closest to each other, and avoids a phenomenon in which the moving bearing stand 4 collides with the fixed bearing stand 3. To do.
【００１１】移動軸受台４には、別の連結杆８の一端が
固定され、この連結杆８は主軸台２を遊貫通して前記連
結杆５の場合と同じようにストッパー９と10が設けら
れ、主軸台２が移動軸受台４との相対関係において、連
結杆８によって連結される最大間隔L2のうち一定寸法l2
を除くL2' の範囲で自由に摺動可能とする。図１(a) に
示す主軸台２を最も後退させた位置では、固定軸受台３
と主軸台２との間隔が固定軸受台３と移動軸受台４を最
も離れる間隔L1、移動軸受台４と主軸台２との間隔が最
も離れる間隔L2となっているため、移動軸受台４は全く
遊動することができない状態にある。One end of another connecting rod 8 is fixed to the movable bearing base 4, and the connecting rod 8 penetrates the headstock 2 and is provided with stoppers 9 and 10 as in the case of the connecting rod 5. In the relative relationship between the headstock 2 and the moving bearing base 4, a constant dimension l 2 of the maximum distance L 2 connected by the connecting rod 8
It is possible to slide freely within the range of L 2 'excluding. At the most retracted position of the headstock 2 shown in Fig. 1 (a), the fixed bearing base 3
The distance between the headstock 2 and the headstock 2 is the distance L 1 at which the fixed bearing stand 3 and the moving bearing stand 4 are furthest apart, and the distance between the moving bearing stand 4 and the headstock 2 is L 2 so that the moving bearing stand is 4 is in a state in which it cannot move at all.
【００１２】図１(b) に示すように、主軸台２が被加工
物Ａのある先方に向けて移動を始めると固定軸受台３と
主軸台２の間隔が狭まり、移動軸受台４は相互の最も接
近する間隔l1，及びl2を除くｌの範囲で自由に摺動する
ことになる。主軸台２がさらに先方に向けて移動する
と、図１(c) に示すように固定軸受台３と移動軸受台４
及び主軸台２の間隔がそれぞれl1，及びl2の最も接近し
た位置に達する。この状態では、移動軸受台４は遊動し
ない。As shown in FIG. 1 (b), when the headstock 2 starts to move toward the front side of the workpiece A, the gap between the fixed bearing base 3 and the headstock 2 becomes narrower, and the movable bearing bases 4 are moved to each other. It will slide freely within the range of l except for the closest distances l 1 and l 2 . When the headstock 2 moves further forward, as shown in FIG. 1 (c), the fixed bearing stand 3 and the moving bearing stand 4 are moved.
And the distance between the headstocks 2 reaches the closest positions of l 1 and l 2 , respectively. In this state, the moving bearing stand 4 does not move.
【００１３】図２は、固定軸受台３と主軸台２の間に二
つの移動軸受台４，４’を設け、より長寸法のドリル１
に対応することができるようにしたものである。主軸台
３と第１の移動軸受台４は連結杆５によって、第２の移
動軸受台４’と主軸台２は連結杆８によってそれぞれ連
結するとともに、移動軸受台４と４’は連結杆11によっ
て連結している。この連結杆11には、連結杆５や８と同
様に抜け止めの為のストッパー12と、最も接近する間隔
l3を規制するストッパー13を設けている。二つの移動軸
受台４，４’を設けるものでは、固定軸受台３と二つの
移動軸受台４，４’及び主軸台２の最も離れる間隔は連
結杆５，８，11によって規制されるL1，L2，L3となり、
それぞれ相対的にL1' ，L2' ，L3' の範囲で自由に摺動
可能となる。In FIG. 2, two movable bearing bases 4 and 4'are provided between a fixed bearing base 3 and a headstock 2, and a drill 1 having a longer dimension is provided.
It is designed to be able to deal with. The headstock 3 and the first moving bearing base 4 are connected by a connecting rod 5, and the second moving bearing base 4'and the headstock 2 are connected by a connecting rod 8, respectively, and the moving bearing bases 4 and 4'are connected by a connecting rod 11. Are linked by. Similar to the connecting rods 5 and 8, the connecting rod 11 has a stopper 12 for preventing it from coming off, and a space closest to the stopper 12.
A stopper 13 that regulates l 3 is provided. In the case where the two movable bearing bases 4 and 4'are provided, the farthest distance between the fixed bearing base 3, the two movable bearing bases 4 and 4 ', and the headstock 2 is regulated by the connecting rods 5, 8 and 11 L 1 , L 2 , L 3 ,
It is possible to freely slide within the range of L 1 ', L 2 ' and L 3 'relatively.
【００１４】図２(a) に示す主軸台２が最も後退した位
置では、固定軸受台３、移動軸受台４，４’及び主軸台
２はそれぞれ間隔がL1，L2，L3であり、移動軸受台４，
４’は移動することができない。そして、固定軸受台３
と主軸台２は連結杆５，８，11によって連結され、主軸
台２の後退に対する機械的なストッパー、安全装置とし
て機能することになる。At the most retracted position of the headstock 2 shown in FIG. 2 (a), the fixed bearing base 3, the movable bearing bases 4 and 4'and the headstock 2 are spaced at intervals L 1 , L 2 and L 3 , respectively. , Moving bearing stand 4,
4'cannot move. And the fixed bearing stand 3
The headstock 2 and the headstock 2 are connected by the connecting rods 5, 8 and 11 and function as a mechanical stopper and a safety device against the backward movement of the headstock 2.
【００１５】図２(b) に示す主軸台２が被加工物Ａに向
けて途中まで移動した位置では、移動軸受台４，４’は
ストッパー７及び10の存在によって規制される固定軸受
台３及び主軸台２との最接近距離l1，l2を除くｌの範囲
であって、かつ固定軸受台３と移動軸受台４，４’及び
主軸台２とは相互に最も離れ得る間隔がL1，L2，L3であ
って、かつ接近し得る間隔がl1，l2，l3の条件を満たす
範囲で自由に移動することができる。図２(c) に示す主
軸台２が最も前進した位置では、固定軸受台３、移動軸
受台４，４’、主軸台２の間隔がそれぞれl1，l2，l3と
なって衝突することなく、しかも移動軸受台４，４’は
遊動しない状態となる。換言すれば、主軸台２は前進す
ることが不可能となり、機械的なストッパーとして機能
する。At the position where the headstock 2 shown in FIG. 2 (b) has moved partway toward the workpiece A, the movable bearing bases 4 and 4'are fixed bearing bases 3 restricted by the presence of the stoppers 7 and 10. And the range of l except the closest distances l 1 and l 2 to the headstock 2, and the distance between the fixed bearing base 3 and the moving bearing bases 4 and 4'and the headstock 2 that can be most separated from each other is L. It is possible to move freely within the range of 1 , L 2 and L 3 and the approachable distances satisfy the conditions of l 1 , l 2 and l 3 . At a position where the headstock 2 is the most advanced is shown in FIG. 2 (c), the fixed bearing stand 3, the mobile bearing block 4, 4 ', interval headstock 2 collides becomes l 1, l 2, l 3, respectively In addition, the movable bearing bases 4 and 4'are in a state of not moving. In other words, the headstock 2 cannot move forward, and functions as a mechanical stopper.
【００１６】移動軸受台４’や主軸台２が前々方の固定
軸受台３や移動軸受台４にある程度接近すると、連結杆
５や11の先端部分が、移動軸受台４’や主軸台２の移動
範囲に入ることになる。したがって、連結杆５や11の後
端部が移動軸受台４’や主軸台２に衝突することを回避
するため、図示実施例ではストッパー６や12を含め連結
杆５や11が通過する大きさの貫通孔14，15，16，を移動
軸受け台４’と主軸台２に設けている。貫通孔14〜16を
設ける代わりに、移動軸受台４’や主軸台2 の形状、連
結杆の取り付け位置を工夫するものであってもよい。な
お、連結杆５、８、11は互いに衝突しないように、ドリ
ル１と平行であって異なる直線軌跡上に配置している。When the moving bearing stand 4'and the headstock 2 approach the fixed bearing stand 3 and the moving bearing stand 4 in front of the front to some extent, the tips of the connecting rods 5 and 11 move to the moving bearing stand 4'and the headstock 2. Will be in the movement range of. Therefore, in order to prevent the rear end portions of the connecting rods 5 and 11 from colliding with the moving bearing base 4'and the headstock 2, the size of the connecting rods 5 and 11 including the stoppers 6 and 12 passes in the illustrated embodiment. Through holes 14, 15, 16 are provided in the moving bearing base 4 ′ and the headstock 2. Instead of providing the through holes 14 to 16, the shapes of the moving bearing base 4 ′ and the headstock 2 and the mounting positions of the connecting rods may be devised. The connecting rods 5, 8 and 11 are arranged parallel to the drill 1 and on different linear loci so that they do not collide with each other.
【００１７】図３は、本願発明を実施する木工用深孔穿
孔機の一例を示す全体の正面図である。本願発明は、被
加工物の一端からのみ加工を行う深孔穿孔機に応用する
ものであってもよいが、図３に示す実施例では本体フレ
ーム17の中央部にワーク固定部18を配し、その左右両方
にワーク固定部18へ向けて進退するドリル１，１を配置
している。このようにすると、被加工物の両端から加工
を行い、より長寸法の被加工物Ａに対し貫通孔を穿設す
ることができる。固定軸受台３，３はそれぞれ被加工物
Ａの端面になるべく接近させて位置させるものであり、
これをワーク固定部17である先方に向けて移動させ、そ
の位置で固定できるようにすると異なる長さの被加工物
Ａの加工に対応することができる。左右のドリル１，１
は同じものを対向させているので、以下その一方につい
て具体的に説明する。FIG. 3 is an overall front view showing an example of a deep hole drilling machine for woodworking embodying the present invention. The present invention may be applied to a deep hole punching machine that performs processing only from one end of the workpiece, but in the embodiment shown in FIG. 3, the work fixing portion 18 is arranged at the center of the main body frame 17. The drills 1 and 1 that move forward and backward toward the workpiece fixing portion 18 are arranged on both the left and right sides thereof. By doing so, it is possible to perform processing from both ends of the work piece and to form through holes in the work piece A having a longer dimension. The fixed bearing pedestals 3 and 3 are located as close as possible to the end surface of the workpiece A,
When this is moved toward the work fixing portion 17 so that it can be fixed at that position, it is possible to cope with the processing of the work piece A having a different length. Left and right drill 1,1
Since the same ones face each other, one of them will be specifically described below.
【００１８】図４及び図５に示すように、ドリル１の基
端部は主軸台２に設けたスピンドル19に着脱自在としモ
ータ20によって回転駆動させる一方、先端部は本体フレ
ーム17に固定される固定軸受台３によって支受せしめ
る。また、ドリル１の中間部分は二つの移動軸受台４，
４’によって支受せしめ、長寸法のドリルに撓みや芯振
れを生じないようにしている。つまり、図３以下に示す
実施例は図２に示すドリル支受装置の実施例に相当し、
移動軸受台４，４’の一方を省略すると図２に示すドリ
ル支受装置の実施例となる。As shown in FIGS. 4 and 5, the base end portion of the drill 1 is detachably attached to a spindle 19 provided on the headstock 2 and is rotationally driven by a motor 20, while the tip end portion is fixed to a main body frame 17. It is supported by the fixed bearing base 3. Also, the middle part of the drill 1 has two moving bearing bases 4,
It is supported by 4 ', so that the long drill does not bend or run out. That is, the embodiment shown in FIG. 3 and subsequent figures corresponds to the embodiment of the drill support device shown in FIG.
If one of the movable bearing stands 4 and 4'is omitted, the embodiment of the drill support device shown in FIG. 2 is obtained.
【００１９】本体フレーム17上には、ドリル１の進行方
向と平行に２条のガイド杆21，21を敷設し、この上を二
つの移動軸受台４，４’及び主軸台２が移動するように
している。固定軸受台３もガイド杆21に沿って移動でき
るものとし、移動した任意位置で固定するものとするこ
ともできる。図５や図６から理解されるように、ドリル
１の下方にはドリルと平行にモータ22によって回転駆動
される送りネジ23を設け、この送りネジ23を主軸台２に
固定した雌ネジ24に螺合させることによって主軸台２を
被加工物に向けて進退するものとしている。On the main body frame 17, two guide rods 21, 21 are laid in parallel with the traveling direction of the drill 1, on which the two movable bearing bases 4, 4'and the headstock 2 move. I have to. The fixed bearing base 3 can also be moved along the guide rod 21, and can also be fixed at an arbitrary position moved. As can be understood from FIGS. 5 and 6, a feed screw 23 that is driven to rotate by a motor 22 is provided below the drill 1 in parallel with the drill, and the feed screw 23 is fixed to the female screw 24 fixed to the headstock 2. By screwing the headstock 2 forward and backward toward the workpiece.
【００２０】移動軸受台４，４’には特に駆動手段を設
けず、固定軸受台３と移動軸受台４は連結杆５によっ
て、移動軸受台４と移動軸受台４’は連結杆11によっ
て、移動軸受台４’と主軸台２は連結杆８によってそれ
ぞれ連結されている。この連結杆の具体的な構造、働き
は先に図１及び図２に基づいて述べた通りである。No drive means is provided on the moving bearing bases 4 and 4 ', the fixed bearing base 3 and the moving bearing base 4 are connected by the connecting rod 5, and the moving bearing bases 4 and 4'are connected by the connecting rod 11. The moving bearing base 4'and the headstock 2 are connected by a connecting rod 8. The specific structure and function of this connecting rod are as described above with reference to FIGS. 1 and 2.
【００２１】三つの連結杆５，８，11はともに同一平面
上の異なる位置にドリル１と平行に配置している。図６
に示すように主軸台２には連結杆８が遊貫通している
が、主軸台２には連結杆５が自由に通過する大きな貫通
孔16と、連結杆11が通過する大きな貫通孔15を設けてい
る。また図７に示すように、移動軸受台４’には連結杆
11が遊貫通しているが、移動軸受台４’には連結杆５が
自由に通過する大きな貫通孔14が一つだけ設けられてい
る。All the three connecting rods 5, 8 and 11 are arranged in parallel with the drill 1 at different positions on the same plane. Figure 6
As shown in FIG. 3, the connecting rod 8 is loosely penetrated through the headstock 2, but the connecting shaft 5 has a large through hole 16 through which the connecting rod 5 freely passes and a large through hole 15 through which the connecting rod 11 passes. It is provided. Further, as shown in FIG. 7, the moving rod 4'is provided with a connecting rod.
11, the movable bearing base 4'is provided with only one large through hole 14 through which the connecting rod 5 can freely pass.
【００２２】移動軸受台４及び４’は連結杆によって規
制される範囲内において自由に移動することができるも
ので、その位置は一定しない。主軸台２が多少移動して
も移動軸受台４，４’が移動しないこともある。しかし
ながら、主軸台が移動し、またドリル１が回転しながら
前方に移動すると、移動時の抵抗によってある程度先方
に押し出され自然と略等間隔となることが多い。もっと
も、移動軸受台４，4'相互の間隔が等間隔にはならなく
ても、ドリル１の芯振れを防止できる最大の間隔よりも
大きくなることはなく、かつ衝突するようなことがな
い。また、移動軸受台４、４’が固定軸受台３や主軸台
２と接触するものであっても、ドリル１を支受する上に
おいて支障がないものであれば、ストッパーによる最も
接近できる位置の規制は行う必要はない。The movable bearing bases 4 and 4'can freely move within a range regulated by the connecting rod, and their positions are not constant. Even if the headstock 2 moves a little, the movable bearing bases 4 and 4'may not move. However, when the headstock moves and the drill 1 moves forward while rotating, it is often pushed forward to some extent by the resistance during movement, and the intervals are naturally approximately equal. However, even if the distances between the movable bearing bases 4 and 4'are not equal to each other, the distance does not become larger than the maximum distance capable of preventing the runout of the drill 1, and the collision does not occur. Further, even if the movable bearing bases 4 and 4'contact the fixed bearing base 3 and the headstock 2, as long as they do not interfere with the support of the drill 1, the position of the stopper most accessible No regulation is required.
【００２３】なお、ドリル１を支受する固定軸受台３や
移動軸受台４，４’には、一般的なメタル軸受を利用し
てもよいが、このような固定軸受ではドリルの切削刃が
接触したときに軸受そのものを磨滅させる可能性があ
る。これを回避するために、本発明者はボールベアリン
グやローラーベアリングのような回転軸受を利用してい
る。このようにすると、ドリルが接触し接触抵抗が発生
したときにスリーブがドリルと一緒に回転を始め、軸受
そのものの損傷をなるべく回避できる。A general metal bearing may be used for the fixed bearing stand 3 and the movable bearing stands 4, 4'for supporting the drill 1, but in such a fixed bearing, the cutting blade of the drill is used. If they come into contact, they can wear down the bearings themselves. In order to avoid this, the present inventor utilizes rotary bearings such as ball bearings and roller bearings. In this way, when the drill comes into contact with the contact resistance, the sleeve starts to rotate together with the drill, and damage to the bearing itself can be avoided as much as possible.
【００２４】[0024]
【発明の効果】請求項１記載の本発明木工用深孔穿孔機
におけるドリル支受装置によれば、ドリルの芯振れを防
止するために長尺であるドリルの中間部分を、主軸台が
移動するガイド杆上を自由に移動することができる移動
軸受台によってしっかりと支受する。この際、移動軸受
台自体の移動のために何らの駆動装置を必要とせず、移
動軸受台は自然と比較的等間隔に位置し、かつ自由に遊
動することができるものであって、しかも、ドリルの芯
振れを回避する効果のある間隔よりも広がることがな
い。According to the drill support device for a deep hole drilling machine for woodworking of the present invention as set forth in claim 1, the middle part of the drill, which is long in order to prevent core runout of the drill, has a headstock.
It is firmly supported by a moving bearing stand that can move freely on the moving guide rod . At this time, without the need for any driving device for moving the mobile bearing block itself, transfer
The dynamic bearing bases are naturally located at relatively equal intervals and are free to move freely.
It is movable, and does not spread beyond the interval effective for avoiding runout of the drill.
【００２５】請求項２記載の発明によれば、より長寸法
のドリルを使用するものであってもドリルの芯振れを効
果的に回避することができる。According to the second aspect of the present invention, even if a drill having a longer dimension is used, runout of the drill can be effectively avoided.
【図１】本発明の実施例である木工用深孔穿孔機のドリ
ルと主軸台及び移動軸受台の関係を概略的に示す平面
図、FIG. 1 is a plan view schematically showing a relationship between a drill, a headstock and a moving bearing stand of a deep hole drilling machine for woodworking according to an embodiment of the present invention,
【図２】本発明の実施例である木工用深孔穿孔機のドリ
ルと主軸台及び二つの移動軸受台の関係を概略的に示す
平面図、FIG. 2 is a plan view schematically showing the relationship between the drill, the headstock and the two moving bearing stands of the deep hole drilling machine for woodworking according to the embodiment of the present invention,
【図３】本発明を利用する木工用深孔穿孔機の全体の正
面図、FIG. 3 is an overall front view of a deep hole drilling machine for woodworking utilizing the present invention,
【図４】図３の右半部のみを示す正面図、FIG. 4 is a front view showing only the right half of FIG.
【図５】図３の右半部のみを示す平面図、FIG. 5 is a plan view showing only the right half of FIG.
【図６】図４のＸ−Ｘ線断面図、6 is a sectional view taken along line XX of FIG.
【図７】図４のＹ−Ｙ線断面図。7 is a cross-sectional view taken along line YY of FIG.
１─ドリル、 ２─主軸台、 ３─固定軸受台、 ４，
4'─移動軸受台、５，８，11─連結杆、 ６，７，９，
10，12，13─ストッパー、 14，15，16─貫通孔。1-drill, 2-headstock, 3-fixed bearing stand, 4,
4'-moving bearing stand, 5,8,11-connecting rod, 6,7,9,
10, 12, 13-stopper, 14, 15, 16-through hole.
Claims (2)
向けて進退する主軸台２に保持し先端部を固定軸受台３
に支受せしめるとともに、主軸台２が移動するガイド杆
２１，２１上を自由に移動可能な移動軸受台４でドリル
１の中間部分を支受し、固定軸受台３と移動軸受台４、
移動軸受台４と主軸台２をそれぞれ連結杆５，８によっ
て連結し、連結杆５及び８は一端部を先方にある固定軸
受台３もしくは移動軸受台４に固定し、後方の移動軸受
台４もしくは主軸台２を遊貫通させて後端部には隣接す
る移動軸受台もしくは主軸台に対し抜け止めとなるスト
ッパー６及び９を設けたことを特徴とする木工用深孔穿
孔機におけるドリル支受装置。1. A base 1 of a long drill 1 is held on a headstock 2 which advances and retreats toward a workpiece A, and a tip end thereof is a fixed bearing base 3.
Guide rod that moves the headstock 2 while being supported by
Drill with movable bearing stand 4 that can move freely on 21, 21
1, which receives the intermediate portion of the fixed bearing base 3 and the movable bearing base 4,
The movable bearing base 4 and the spindle headstock 2 are connected by connecting rods 5 and 8, respectively, and one end of each of the connecting rods 5 and 8 is fixed to the fixed bearing base 3 or the movable bearing base 4 at the front side, and the moving bearing base 4 at the rear side. or adjacent the headstock 2 at the rear end portion by loosely fitted through to
A drill support device for a deep hole drilling machine for woodworking, characterized in that stoppers 6 and 9 are provided to prevent the movable bearing base or spindle head from coming off.
移動するガイド杆２１，２１上を自由に移動可能な複数
個の移動軸受台４，４’を配置し、固定軸受台３と先頭
の移動軸受台４、移動軸受台４，４’どうし及び後端の
移動軸受台４’と主軸台２を連結杆５，１１，８で連結
し、これら連結杆５，１１，８は一端を先方のものに固
定し後方のものを遊貫通させて後端部には隣接する移動
軸受台もしくは主軸台に対し抜け止めとなるストッパー
を設けたことを特徴とする請求項１記載の木工用深孔穿
孔機におけるドリル支受装置。2. A headstock 2 is provided between a fixed bearing base 3 and a headstock 2.
A plurality of movable bearing bases 4 and 4'which can be freely moved on the moving guide rods 21 and 21 are arranged, and the fixed bearing base 3 and the front end are arranged.
Of the moving bearing stand 4, the moving bearing stands 4, 4'of the rear end
The moving bearing base 4'and the headstock 2 are connected by connecting rods 5, 11 , 8 and one end of these connecting rods 5, 11 , 8 is fixed to the front end and the rear one is loosely penetrated to the rear end. Move adjacent
Stop over to be prevented from coming out to the bearing block or headstock
Drilling支受apparatus in claim 1 for woodworking deep hole drilling machine, wherein the a is provided.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP4075209A JPH0729283B2 (en) | 1992-02-25 | 1992-02-25 | Drill support device for deep hole drilling machine for woodworking |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP4075209A JPH0729283B2 (en) | 1992-02-25 | 1992-02-25 | Drill support device for deep hole drilling machine for woodworking |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| JPH05228905A JPH05228905A (en) | 1993-09-07 |
| JPH0729283B2 true JPH0729283B2 (en) | 1995-04-05 |
Family
ID=13569583
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP4075209A Expired - Lifetime JPH0729283B2 (en) | 1992-02-25 | 1992-02-25 | Drill support device for deep hole drilling machine for woodworking |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPH0729283B2 (en) |
Families Citing this family (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP4606763B2 (en) * | 2004-03-31 | 2011-01-05 | 有限会社北陸テクノ | Wood production method |
| KR101447942B1 (en) * | 2013-06-07 | 2014-10-13 | 선경창호주식회사 | Wood boring machine capable of double slicing |
| JP6739587B1 (en) * | 2019-04-27 | 2020-08-12 | 倉敷機械株式会社 | Machine Tools |
Family Cites Families (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS647502U (en) * | 1987-07-03 | 1989-01-17 | ||
| JPH01247102A (en) * | 1988-03-28 | 1989-10-03 | Kobayashi Gimune Seisakusho:Kk | Long drill support and receiving apparatus in woodworking deep hole drilling machine |
-
1992
- 1992-02-25 JP JP4075209A patent/JPH0729283B2/en not_active Expired - Lifetime
Also Published As
| Publication number | Publication date |
|---|---|
| JPH05228905A (en) | 1993-09-07 |
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