JP3102839B2 - Multi-axis drilling machine with hole bending correction function - Google Patents
Multi-axis drilling machine with hole bending correction functionInfo
- Publication number
- JP3102839B2 JP3102839B2 JP07162574A JP16257495A JP3102839B2 JP 3102839 B2 JP3102839 B2 JP 3102839B2 JP 07162574 A JP07162574 A JP 07162574A JP 16257495 A JP16257495 A JP 16257495A JP 3102839 B2 JP3102839 B2 JP 3102839B2
- Authority
- JP
- Japan
- Prior art keywords
- drilling
- shaft
- axis
- hole bending
- holding means
- 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 - Fee Related
Links
Landscapes
- Pit Excavations, Shoring, Fill Or Stabilisation Of Slopes (AREA)
- Bulkheads Adapted To Foundation Construction (AREA)
Description
【０００１】[0001]
【産業上の利用分野】本発明は、連続地中壁の造成など
に用いる多軸削孔機に係り、特に孔曲り修正機能を有す
る多軸削孔機に関する。BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a multi-axis drilling machine used for forming a continuous underground wall, etc., and more particularly to a multi-axis drilling machine having a hole bending correcting function.
【０００２】[0002]
【従来の技術】従来より多用されている多軸削孔機は、
図１に示されるように、複数本のたとえば３本の削孔軸
１，２，３が平行にかつ横断面上において所定の軸列、
たとえば直列に配設される。これらの削孔軸１，２，３
は、上部および下部において相対的位置関係を規制する
保持手段４，５を有するとともに、各削孔軸１，２，３
をその軸心まわりに回転させる回転駆動手段６を有する
掘進機構Ｘが、対地固定の保持機構Ｙ（図５参照）、た
とえばベースマシン７のリーダ８に沿って前後進（図示
例では昇降動）可能に設けられ、下降過程において削孔
軸１，２，３により削孔を行う。この種の多軸削孔機
は、連続地中壁、山留壁の造成および地盤改良工事など
に用いられている。2. Description of the Related Art A multi-axis drilling machine, which has been widely used,
As shown in FIG. 1, a plurality of, for example, three drilling shafts 1, 2, 3 are arranged in parallel and on a cross section in a predetermined shaft row,
For example, they are arranged in series. These drilling axes 1, 2, 3
Have holding means 4 and 5 for regulating the relative positional relationship between the upper and lower portions, and have respective drilling shafts 1, 2, 3
A digging mechanism X having a rotation driving means 6 for rotating the shaft around the axis thereof is moved forward and backward along a holding mechanism Y fixed to the ground (see FIG. 5), for example, a reader 8 of a base machine 7 (moving up and down in the illustrated example). It is provided so that it can be drilled by the drilling shafts 1, 2, 3 in the descending process. This type of multi-axis drilling machine is used for forming continuous underground walls and retaining walls, ground improvement work, and the like.
【０００３】しかしながら、この種の多軸削孔機では比
較的多くの場合、孔曲りが生じるにも拘わらず、これを
修正する手段がないのが現状である。たとえば３軸削孔
機を用いた場合の孔曲りについて概要を図２および図３
によって説明すると、いま、各削孔軸１，２，３の回転
方向が図１の矢印方向であるとする。[0003] However, in this type of multi-axis drilling machine, in most cases, despite the fact that the hole is bent, there is no means for correcting it. For example, FIG. 2 and FIG. 3 show the outline of hole bending when a three-axis drilling machine is used.
Now, it is assumed that the rotation direction of each of the drill shafts 1, 2, 3 is in the direction of the arrow in FIG.
【０００４】一般に、削孔時には、各削孔軸１，２，３
によって、図２に示すように、最初に（１）の領域を掘
削し、次に１スパン飛んで（２）の領域を掘削した後、
最後に、それらの間の領域（３）を、先の領域（１）お
よび（２）の端部の削孔をガイドとして利用しながら掘
削している。先行削孔部分の端部孔をガイドとする理由
は、極力孔曲りを防止するためである。Generally, at the time of drilling, each of the drilling shafts 1, 2, 3
As a result, as shown in FIG. 2, after first excavating the area (1), then skipping one span and excavating the area (2),
Finally, the area (3) between them is excavated using the holes at the ends of the previous areas (1) and (2) as a guide. The reason why the end hole of the preceding drilling portion is used as a guide is to prevent bending of the hole as much as possible.
【０００５】孔曲りがない正規の状態では、図２に示す
ように、常時、各削孔軸１，２，３が目的の壁中心面
（掘削中心列線）Ｌに沿う。しかし、いま掘削している
深さ位置において、各削孔軸１，２，３での地盤の硬軟
があると、図３に示すように、掘削中心列線Ｌに対し
て、削孔軸列線Ｃが傾斜して掘削が行われることがあ
る。このまま、掘削を進行してゆくと、より孔曲り傾向
が大きくなり、掘削中心列線Ｌから大きく外れてしま
い、目的の掘削精度を得ることができず、したがって造
成される壁の精度も低下する。また、領域（３）を掘削
する段階で、先の削孔Ｈ1 ，Ｈ2 を前述のガイドとして
利用できなくなることがあり、かつ壁の両面において硬
軟の差があると、矢印で示すように、より孔曲りが急に
なることもある。[0005] In a normal state where there is no hole bending, as shown in FIG. 2, each of the drilling shafts 1, 2, 3 always follows the target wall center plane (excavation center line) L. However, if the ground is hard or soft at each of the drilling shafts 1, 2, and 3 at the depth position where the drilling is currently being performed, as shown in FIG. Excavation may be performed with the line C inclined. As the excavation proceeds as it is, the tendency of the hole to bend becomes greater, and the excavation center line L is greatly deviated, so that the desired excavation accuracy cannot be obtained, and thus the accuracy of the wall to be formed also decreases. . Also, at the stage of excavating the region (3), the above-described drilled holes H 1 and H 2 may not be used as the above-mentioned guide, and if there is a difference in hardness between the two surfaces of the wall, as shown by the arrow. In some cases, the bending of the hole becomes steeper.
【０００６】なお、前述の曲り方向は、地盤の抵抗とし
ての硬軟のほか、多軸削孔機自体の特性に基づくことも
多く、同一機種であっても、曲り方向を一律的に予測す
ることは困難である。[0006] The above-mentioned bending direction is often based on the characteristics of the multi-axis drilling machine itself, in addition to the hardness as the resistance of the ground, and even in the case of the same model, it is necessary to predict the bending direction uniformly. It is difficult.
【０００７】多軸削孔機における孔曲りの検知について
は、特開平５−７１１２２号公報に記載されている手段
があるものの、その孔曲りの修正については、なんらの
手段も同公報は開示していない。Japanese Patent Application Laid-Open No. 5-71122 discloses a method for detecting hole bending in a multi-axis drilling machine, but discloses no means for correcting the hole bending. Not.
【０００８】また、従来より孔曲りの修正自体について
は比較的多くの提案がなされているが、その多くは単一
のロッドの孔曲りの修正である。これについては、代表
的には特公平２−３３８３０号公報に示されたもので、
孔曲りが生じたとき、方向修正ガイドを削孔軸の外方に
装入し、その方向修正ガイドの内面に設けたテーパ部分
を利用した反対方向に削孔軸を向けながら、削孔軸のみ
を前進させるというものである。[0008] Although there have been relatively many proposals for correcting the hole bending itself, most of them are correction of the hole bending of a single rod. This is typically described in Japanese Patent Publication No. 2-33830,
When the hole bends, insert the direction correction guide to the outside of the drilling shaft and turn the drilling shaft in the opposite direction using the tapered part provided on the inner surface of the direction correction guide, while only drilling the shaft Is to move forward.
【０００９】[0009]
【発明が解決しようとする課題】しかし、この種のもの
を、本発明が対象とする多軸削孔機に適用しようとして
も、その多軸削孔機自体の構造から、たとえば方向修正
ガイドを改めて削孔軸の外方に装入することは事実上で
きない。However, even if this kind of material is applied to a multi-axis drilling machine to which the present invention is applied, it is necessary to provide a direction correcting guide, for example, from the structure of the multi-axis drilling machine itself. It is virtually impossible to insert it outside the drilling shaft again.
【００１０】したがって、多軸削孔機については、特公
昭５８−９２０９号公報に示されたものが提案されてい
る程度である。すなわち、支持筒（マスト）をジャッキ
により強制的に曲げることにより孔曲りを修正するもの
である。Therefore, as for the multi-axis drilling machine, the one disclosed in Japanese Patent Publication No. 58-9209 has only been proposed. That is, hole bending is corrected by forcibly bending the support cylinder (mast) with a jack.
【００１１】しかし、これでは各削孔軸が支持筒と共に
曲り方向面に沿って曲がるのみであり、本発明が目的と
するその面の中心、すなわち軸列心を中心として軸列面
そのものを修正することができない。However, in this case, each of the drilling shafts only bends along the surface in the bending direction together with the support cylinder, and the object of the present invention is to correct the center of the surface, that is, the shaft train itself with the center of the shaft train as the center. Can not do it.
【００１２】したがって、本発明の課題は、多軸削孔機
において、掘削中心線から削孔軸列線がずれた場合、軸
列線を平行移動的に修正することはもちろん、軸列心を
回転中心として軸列面そのものを回転させて修正するこ
とができ、しかも、構造的に簡素となるものを提供する
ことにある。Accordingly, an object of the present invention is to provide a multi-axis drilling machine in which, when a drilling axis line is displaced from an excavation center line, not only the axis line is corrected in a parallel movement, but also the axis line center is corrected. It is an object of the present invention to provide a structure which can be modified by rotating the shaft row itself as a rotation center and which is structurally simple.
【００１３】[0013]
【課題を解決するための手段】上記課題を解決するため
に本発明は、複数本の削孔軸が平行にかつ横断面上にお
いて所定の軸列をなして配設されるとともに、これら各
削孔軸を保持する保持手段を有し、各削孔軸をその軸心
まわりに回転させる回転駆動手段を有する掘進機構が、
対地固定の保持機構に沿って前後進し、前進過程におい
て前記削孔軸により削孔を行う多軸削孔機において、前
記削孔軸の上端部と上部側の保持手段との間に設けら
れ、前記上部側の保持手段を座として前記削孔軸を軸方
向に前後進させるスライド手段と、下部側の保持手段に
固定配置され、前記削孔軸の軸方向の前後進により作動
する作動源用ジャッキと、前記下部側の保持手段に対し
て、前記軸列中心より端部寄り部分であって軸列線を跨
ぐ両側面のそれぞれに対となって設けられた、実質的に
軸列面に対し直交する方向に進退可能な孔曲がり修正用
押圧体と、これらの孔曲がり修正用押圧体のそれぞれを
進退動作させる油圧ジャッキと、前記スライド手段によ
る軸方向の削孔軸の前後進による作動源用ジャッキの作
動により、前記孔曲がり修正用押圧体の進退動作用の前
記油圧ジャッキに作動油が供給され、前記孔曲がり修正
用押圧体間が正反方向に進退動作するように構成されて
いる、ことを特徴とするものである。SUMMARY OF THE INVENTION In order to solve the above-mentioned problems, the present invention provides a method in which a plurality of drilling axes are arranged in parallel and in a predetermined axial row on a cross section, and each of these drilling axes is formed. A drilling mechanism having a holding means for holding a hole axis, and having a rotation driving means for rotating each drilling axis around its axis,
In a multi-axis drilling machine that moves back and forth along a ground-fixed holding mechanism and performs drilling by the drilling shaft in a forward movement process, the drilling shaft is provided between an upper end portion of the drilling shaft and upper holding means. A sliding means for moving the drilling shaft back and forth in the axial direction with the upper holding means as a seat; and an operating source fixed to the lower holding means and operated by moving the drilling shaft back and forth in the axial direction. The jack shaft and the lower holding means are provided in pairs on each of both side surfaces that are closer to the end than the center of the shaft row and straddle the shaft line. A hole bending correction pressing body capable of moving forward and backward in a direction perpendicular to the hydraulic circuit, a hydraulic jack for moving each of these hole bending correction pressing bodies forward and backward, and an operation of the drilling shaft in the axial direction by the slide means moving forward and backward. The operation of the source jack causes the bending of the hole. Hydraulic oil is supplied to the hydraulic jack for reciprocating operation of the pressing body for correction, and between the hole bending correction pressing bodies is configured to reciprocate in forward and reverse directions. is there.
【００１４】この場合、前記一対の孔曲がり修正用押圧
体を組として、軸列の両端側にそれぞれ設けることが望
ましい。In this case, it is desirable that the pair of hole bending correction pressing members be provided as a set at both ends of the shaft row.
【００１５】ここで、前記スライド手段は、シリンダー
側およびピストン側の一方を上部保持手段に対して固定
されたジャッキ本体を有し、他方を削孔軸に対してこれ
が軸心周りに回転可能に軸支する軸受を介在させて、削
孔軸の外面に対して前後方向に移動不能に取り付けた構
造とすることができる。Here, the sliding means has a jack body having one of the cylinder side and the piston side fixed to the upper holding means, and the other being rotatable around the axis with respect to the drilling axis. It is possible to adopt a structure in which a bearing that supports the shaft is interposed so as to be immovable in the front-rear direction with respect to the outer surface of the drilling shaft.
【００１６】[0016]
【作用】本発明の多軸削孔機においても、図４に示すよ
うに、複数本のたとえば３本の削孔軸１，２，３が平行
にかつ横断面上において所定の軸列、たとえば直列をな
して配設される。これらの削孔軸１，２，３は、たとえ
ば上部および下部において保持する保持手段４，５を有
し、各削孔軸１，２，３をその軸心まわりに回転させる
油圧モーターなどの回転駆動手段６を有する掘進機構Ｘ
が、図５に示すように、対地固定の保持機構Ｙ、たとえ
ばベースマシン７のマスト９のリーダ８に沿って前後
進、図示例ではマスト９が鉛直支持であるため昇降動
し、その下降過程において地盤を削孔軸１，２，３によ
り削孔する。In the multi-axis drilling machine of the present invention, as shown in FIG. 4, a plurality of, for example, three drilling shafts 1, 2, 3 are arranged in parallel and in a predetermined cross-section on a cross section, for example, for example. They are arranged in series. These drilling shafts 1, 2 and 3 have, for example, holding means 4 and 5 for holding the drilling shafts at the upper and lower portions, respectively. Drilling mechanism X having driving means 6
However, as shown in FIG. 5, it moves forward and backward along a holding mechanism Y fixed to the ground, for example, a leader 8 of a mast 9 of a base machine 7. In the illustrated example, the mast 9 moves up and down because the mast 9 is vertically supported. In, the ground is drilled by the drilling shafts 1, 2, 3.
【００１７】この多軸削孔機では、削孔軸列線Ｃに対し
て、掘削中心列線Ｌが沿うことが重要であり、たとえば
掘進機構Ｘそのものの位置は所定の位置とし、各削孔軸
１，２，３の位置のみを変更可能とすることが重要であ
る。特に、削孔軸１，２，３の中心削孔軸１の位置は固
定とし、両端の削孔軸２，３のみの位置を修正する必要
がある。In this multi-axis drilling machine, it is important that the drilling center line L is along the drilling shaft line C. For example, the position of the drilling mechanism X itself is set to a predetermined position, and It is important that only the positions of the axes 1, 2, 3 can be changed. In particular, it is necessary to fix the position of the center drilling shaft 1 of the drilling shafts 1, 2, 3 and correct the position of only the drilling shafts 2, 3 at both ends.
【００１８】したがって、保持機構Ｙに対して、掘進機
構Ｘそのものの位置を変える手段は採用できない。その
結果、掘進機構Ｘの系内で孔曲りを修正する手段が必要
となる。Therefore, means for changing the position of the excavating mechanism X itself with respect to the holding mechanism Y cannot be employed. As a result, means for correcting the hole bending in the system of the excavating mechanism X is required.
【００１９】本発明では、先ず、たとえば下部側の保持
手段に対して、軸列の端部寄り部分であって軸列線を跨
ぐ両側面のそれぞれに、軸列面に対し直交する方向に進
退可能な孔曲がり修正用押圧体１０Ａ・１０Ｂ、１１Ａ
・１１Ｂを設ける。対称位置関係にある前記孔曲がり修
正用押圧体１０Ａ・１０Ｂを対とし、孔曲がり修正用押
圧体１１Ａ・１１Ｂを対とする。In the present invention, first, for example, with respect to the holding means on the lower side, each of the two side surfaces straddling the end of the shaft row and straddling the shaft line is moved in a direction perpendicular to the shaft row surface. Possible hole bending correction pressing bodies 10A and 10B, 11A
・ 11B is provided. The pressing members 10A and 10B for correcting hole bending are paired, and the pressing members 11A and 11B for correcting hole bending are paired.
【００２０】削孔中に孔曲がりが生じた場合には、所定
の前記孔曲がり修正用押圧体を進出させることにより削
孔軸列全体を回転させて正規の位置に修正する。When a hole is bent during drilling, the entire drilling shaft train is rotated to correct the hole to a proper position by advancing the predetermined hole bending correcting pressing body.
【００２１】しかし、この場合、単に軸列面を跨いで配
置された一対の孔曲がり修正用押圧体の一方側のみ、た
とえば１０Ａを進出させて削孔軸全体の回転を行おうと
しても、他方側の孔曲がり修正用押圧体１０Ｂが削孔壁
面に押し当てられた状態であるため、削孔軸全体の回転
が効果的にできない。However, in this case, even if the rotation of the entire drilling shaft is attempted by simply advancing only one side, for example, 10A, of the pair of hole bending correction pressing members arranged across the shaft row surface, Since the hole bending correction pressing body 10B on the side is pressed against the wall surface of the hole, rotation of the entire hole shaft cannot be effectively performed.
【００２２】そこで、本発明では、これら一対の孔曲が
り修正用押圧体間１０Ａ・１０Ｂおよび１１Ａ・１１Ｂ
で進退動作を正反方向に連動するようにしている。した
がって、一方側の孔曲がり修正用押圧体１０Ａの進出分
だけ、他方側の孔曲がり修正用押圧体１０Ｂを後退さ
せ、かつ一方側の孔曲がり修正用押圧体１１Ｂの進出分
だけ、他方側の孔曲がり修正用押圧体１１Ａを後退させ
るため、確実に削孔軸全体が回転できるようになる。Therefore, in the present invention, the pair of pressurizing members 10A and 10B and 11A and 11B
The forward and backward movements are linked in the forward and reverse directions. Therefore, the hole bending correction pressing body 10B on the other side is retracted by the amount of advance of the hole bending correction pressing body 10A on one side, and the other side of the hole bending correction pressing body 11B is advanced by the amount of advance of the hole bending correction pressing body 11B on the other side. Since the hole bending correction pressing body 11A is retracted, the entire drilling shaft can be reliably rotated.
【００２３】具体的に示すと、図６において、図６
（Ａ）のように掘削中心列線Ｌから削孔軸列線Ｃが時計
回り方向に外れた場合、押圧体１０Ａおよび押圧体１１
Ｂを進出させると同時に、押圧体１０Ｂおよび押圧体１
１Ａを後退させる。すると、削孔軸全体が反時計方向回
りに回転し、同図（Ｂ）に示すように、掘削中心列線Ｌ
に削孔軸列線Ｃを沿わせることができる。More specifically, in FIG.
When the drilling axis line C deviates clockwise from the excavation center line L as in (A), the pressing body 10A and the pressing body 11
B at the same time as pressing body 10B and pressing body 1
Retract 1A. Then, the entire drilling shaft rotates counterclockwise, and as shown in FIG.
The drilling shaft row line C can be made to follow.
【００２４】前記一対の孔曲がり修正用押圧体を組とし
て、軸列の両端側にそれぞれ設けることにより、回転力
を大きくすることができ、より効果的に回転させること
ができる。By providing the pair of hole bending correcting pressing members as a set at both ends of the shaft row, the rotational force can be increased and the rotation can be performed more effectively.
【００２５】もちろん、掘削中心列線Ｌに対して削孔軸
列線Ｃが平行的にずれた場合であっても、たとえば一方
側面に設けられた孔曲がり修正用押圧体１０Ａ、１１Ａ
を進出させると同時に、他方側面に設けられた孔曲がり
修正用押圧体１０Ｂ、１１Ｂを後退させることにより、
孔曲がりを平行移動的に修正することができる。Of course, even when the drilling axis line C is displaced in parallel with the excavation center line L, for example, the hole bending correcting pressing bodies 10A and 11A provided on one side surface.
At the same time, the hole bending correction pressing bodies 10B and 11B provided on the other side face are retracted,
Hole bends can be corrected in translation.
【００２６】[0026]
【実施例】以下、本発明を図面を参照しながら実施例に
よりさらに詳説する。図４は本発明の３軸削孔機の例を
示したもので、前述のように、３本の削孔軸１，２，３
が平行にかつ横断面上において所定の軸列、たとえば直
列を有して配設される。削孔軸１，２，３の先端には、
削孔ビット１Ａ，２Ａ，３Ａおよびこれより基部側に攪
拌羽根１Ｂ，２Ｂ，３Ｂが一体的に設けられている。DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS The present invention will be described below in more detail with reference to the drawings. FIG. 4 shows an example of a three-axis drilling machine according to the present invention. As described above, three drilling shafts 1, 2, 3
Are arranged in parallel and on a cross section with a predetermined shaft row, for example in series. At the tip of drilling shafts 1, 2, 3
Drilling bits 1A, 2A, 3A and stirring blades 1B, 2B, 3B are integrally provided on the base side thereof.
【００２７】これらの削孔軸１，２，３は、上部におい
て上部保持手段４により、下部において下部保持手段５
により保持されている。各削孔軸１，２，３は、その軸
心まわりに油圧モーターなどの回転駆動手段６により回
転される。上部保持手段４はケーシングと回転機構とを
有する。この回転機構は、たとえば油圧モーターの出力
軸に連結された原動ギアに従動ギアが噛合し、その従動
ギアに他の２つの従動ギアが噛合し、各３個の従動ギア
に各削孔軸１，２，３が一体化されたもので、これによ
り各削孔軸１，２，３がたとえば図４の矢印方向に回転
するようにしたものである。These drilling shafts 1, 2, 3 are connected to the upper holding means 4 at the upper part and to the lower holding means 5 at the lower part.
Is held by Each of the drill shafts 1, 2, 3 is rotated around its axis by a rotary drive means 6, such as a hydraulic motor. The upper holding means 4 has a casing and a rotation mechanism. In this rotating mechanism, for example, a driven gear meshed with a driving gear connected to an output shaft of a hydraulic motor, the other two driven gears mesh with the driven gear, and each of the three driven gears has a drilling shaft 1. , 2, 3 are integrated, whereby each of the drilling shafts 1, 2, 3 rotates in the direction of the arrow in FIG. 4, for example.
【００２８】他方で、この掘進機構Ｘは、図５に示すよ
うに、対地固定の保持機構Ｙ、たとえばベースマシン７
のマスト９のリーダ８にワイヤ類を介して吊持され、こ
のリーダ８に沿って昇降動し、下降過程において削孔軸
１，２，３により削孔するようになっている。かかる装
置自体は公知のものであるために、詳述はしない。On the other hand, as shown in FIG. 5, this excavating mechanism X is a holding mechanism Y fixed to the ground, for example, a base machine 7.
Is suspended by a leader 8 of a mast 9 via wires, moves up and down along the leader 8, and drills holes by drilling shafts 1, 2, and 3 in a descending process. Such a device is well known and will not be described in detail.
【００２９】一方で、本発明においては、削孔軸２，３
と下部保持手段５とを相対的に軸心方向に移動させる油
圧ジャッキなどからなるスライド手段２２，２３が、上
部保持手段４と削孔軸２，３の基部とに介在されてい
る。On the other hand, in the present invention, the drilling shafts 2, 3
Slide means 22 and 23 composed of hydraulic jacks and the like for relatively moving the and the lower holding means 5 in the axial direction are interposed between the upper holding means 4 and the bases of the drill shafts 2 and 3.
【００３０】この具体的な削孔軸２のみについての例を
図７に示す。油圧シリンダー２２Ａ，２２Ａ…が削孔軸
２と平行に上部固定手段４に固定されて配設され、これ
に対して削孔軸２に係合部２２Ｂが固定されている。油
圧シリンダー２２Ａ，２２Ａ…のロッド先端には係止体
２２Ｃが一体化され、この係止体２２Ｃが係合部２２Ｂ
にベアリング２２Ｄ，２２Ｅを介して係合している。FIG. 7 shows an example of this specific drilling shaft 2 only. The hydraulic cylinders 22A, 22A,... Are fixed to the upper fixing means 4 in parallel with the drilling shaft 2, and an engaging portion 22B is fixed to the drilling shaft 2. An engaging body 22C is integrated with the rod end of the hydraulic cylinders 22A, 22A,.
, Via bearings 22D and 22E.
【００３１】したがって、油圧シリンダー２２Ａ，２２
Ａ…のロッドの伸縮により、削孔軸２が昇降する。ま
た、ベアリング２２Ｄ，２２Ｅが介在されているため
に、油圧シリンダー２２Ａのロッドの伸縮とは無関係
に、削孔軸２自体を前述の回転駆動手段６により回転可
能としてある。また、昇降する削孔軸２に対して回転を
与えるために、回転駆動軸２４の下端部に突起２４Ａを
一体化し、この突起２４Ａを、削孔軸２の内面に一体化
したガイド部材２５，２５の間に介装してある。Therefore, the hydraulic cylinders 22A, 22
The drilling shaft 2 moves up and down by the expansion and contraction of the rod A. Further, since the bearings 22D and 22E are interposed, the drilling shaft 2 itself can be rotated by the above-mentioned rotation driving means 6 irrespective of the expansion and contraction of the rod of the hydraulic cylinder 22A. Further, in order to impart rotation to the drilling shaft 2 that moves up and down, a projection 24A is integrated with the lower end portion of the rotary drive shaft 24, and the projection 24A is integrated with the inner surface of the drilling shaft 2, It is interposed between 25.
【００３２】一方、下部側の保持手段５に対しては、図
８に示されるように、軸列の端部側、図示の例では削孔
軸２、３の配設相当部位において削孔軸列線Ｃを跨いで
対称的に対の孔曲がり修正用の押圧体としての押圧板
（以下、単に押圧板という。）１０Ａ、１０Ｂおよび押
圧板１１Ａ、１１Ｂの２組が配設されている。この押圧
板１０Ａ（１０Ｂ…）は、図９に示されるように、保持
手段５と押圧板１０Ａとが連結リンク１７、１８により
揺動自在に連結されるとともに、押圧板用油圧ジャッキ
１６により連結され、前記押圧板用油圧ジャッキ１６の
伸縮動作により前後進（正確には回転運動により前後
進）するようになっている。この場合、前記一対の押圧
板１０Ａ、１０Ｂ（１１Ａ・１１Ｂ）は、後述する作動
機構により進退動作がそれぞれ正反方向に連動するよう
になっている。すなわち、たとえば一方の押圧板１０Ａ
が外方側に進出したならば、他方の押圧板１０Ｂは内方
側に後退するようになっている。なお、押圧板１０Ａ、
…の進退機構としては、たとえば図１０に示されるよう
に、複数の油圧ジャッキ１９、１９により直接的に押圧
板１０Ａを支持し、進退自在とすることもできる。On the other hand, as shown in FIG. 8, the holding means 5 on the lower side is provided at the end of the shaft row, in the illustrated example, at the portion corresponding to the arrangement of the drilling shafts 2 and 3. Two sets of pressing plates (hereinafter, simply referred to as pressing plates) 10A and 10B and pressing plates 11A and 11B as a pair of pressing members for correcting hole bending are provided symmetrically across the column line C. As shown in FIG. 9, the pressing plate 10A (10B...) Has the holding means 5 and the pressing plate 10A swingably connected by connecting links 17 and 18, and is connected by the pressing plate hydraulic jack 16. The pressure plate hydraulic jack 16 moves forward and backward (more precisely, moves forward and backward by rotational movement). In this case, the advancing and retreating operations of the pair of pressing plates 10A and 10B (11A and 11B) are respectively linked in the forward and reverse directions by an operation mechanism described later. That is, for example, one pressing plate 10A
Is pushed outward, the other pressing plate 10B retreats inward. The pressing plate 10A,
As shown in FIG. 10, for example, the push plate 10A can be directly supported by a plurality of hydraulic jacks 19, and can be freely moved forward and backward as shown in FIG.
【００３３】他方、保持手段５の内部には、図８および
図１１に示されるように、削孔軸２および削孔軸３に対
し、それぞれの両側部であって削孔軸列線Ｃ上に作動源
用ジャッキ１２〜１５が設けられている。以下、代表的
に削孔軸２側のみについて述べると、作動源用ジャッキ
１２は、削孔軸２に沿う軸方向線上において、ピストン
軸３２Ａ、３２Ｂをそれぞれ背向方向に向けて配置され
た一対の油圧ジャッキ１２Ａ・１２Ｂからなり、作動源
用ジャッキ１３は、同じくピストン軸３４Ａ、３４Ｂを
それぞれ背向方向に向けて配置された一対の油圧ジャッ
キ１３Ａ・１３Ｂからなる。なお、ピストン軸とシリン
ダー側との間には、バネ部材３３Ａ、３５Ａ、３３Ｂ、
３５Ｂがそれぞれ介在されている。On the other hand, as shown in FIGS. 8 and 11, the inside of the holding means 5 is on both sides of the drilling shaft 2 and the drilling shaft 3 on the drilling shaft row line C. Are provided with jacks 12 to 15 for operation sources. Hereinafter, only the drilling shaft 2 side will be representatively described. The working source jack 12 includes a pair of pistons 32A and 32B arranged on the axial line along the drilling shaft 2 with the piston shafts 32A and 32B facing in the direction opposite to each other. Hydraulic jacks 12A and 12B, and the actuation source jack 13 is composed of a pair of hydraulic jacks 13A and 13B similarly arranged with the piston shafts 34A and 34B facing in the rearward direction, respectively. In addition, between the piston shaft and the cylinder side, spring members 33A, 35A, 33B,
35B are interposed.
【００３４】削孔軸２に固定された固定カラー３０Ａの
ジャッキがわ面に突設された押し棒３１Ａ、３１Ａ…
が、前記ピストン軸３２Ａ、３４Ａとの間に介在された
リング状板３６に当接し、また固定カラー３０Ｂのジャ
ッキ側面に突設された押し棒３１Ｂ、３１Ｂ…が前記ピ
ストン軸３２Ｂ、３４Ｂとの間に介在されたリング状板
３７に当接しており、前述した削孔軸２の前後進によ
り、前記リング状板３６、３７の移動と共に前記ピスト
ン軸３２Ａ、３４Ａまたは３２Ｂ、３４Ｂが移動され、
前述した押圧板用油圧ジャッキ１６に作動油を供給する
ようになっている。この場合、前記押し棒３１Ａ、３１
Ｂ…は削孔軸２に固定されたリング固定カラー３０Ａ、
３０Ｂと共に回転し、リング状板３６、３７の面上を摺
動するため、前記押し棒３１Ａ、３１Ｂ…とリング状板
３６、３７との間にベアリングを介在させて摺動を円滑
にすることが望ましい。The push rods 31A, 31A,... Protruding from the surface of the jack of the fixed collar 30A fixed to the drill shaft 2 are provided.
Are in contact with the ring-shaped plate 36 interposed between the piston shafts 32A, 34A, and push rods 31B, 31B,... Protruding from the jack side surface of the fixed collar 30B are in contact with the piston shafts 32B, 34B. The piston shafts 32A, 34A or 32B, 34B are moved together with the movement of the ring-shaped plates 36, 37 due to the forward and backward movement of the drilling shaft 2, which is in contact with the ring-shaped plate 37 interposed therebetween.
Hydraulic oil is supplied to the hydraulic jack 16 for the pressing plate described above. In this case, the push rods 31A, 31
B ... is a ring fixing collar 30A fixed to the drilling shaft 2,
Because it rotates together with 30B and slides on the surfaces of the ring-shaped plates 36 and 37, a bearing is interposed between the push rods 31A, 31B. Is desirable.
【００３５】さらに、図１２に示される作動油供給系統
図により作動機構を詳述すると、仮に削孔軸２が下方向
に移動された場合、作動源用の油圧ジャッキ１２Ａ、１
３Ａのピストン軸３２Ａ、３４Ａが同じく下方向に移動
される。すると、油圧ジャッキ１２Ａ内の作動油は押圧
板１０Ａ側のジャッキ１６Ａに供給され、押圧板１０Ａ
が外方に進出する。ジャッキ１６Ａからの戻り油は油圧
ジャッキ１２Ｂに供給され、ピストン軸３２Ｂを同量だ
け移動させ、油圧ジャッキ１２Ｂからの戻り油が元の作
動油供給源である油圧ジャッキ１２Ａに戻される。Further, the operating mechanism will be described in detail with reference to the hydraulic oil supply system diagram shown in FIG. 12. If the drilling shaft 2 is moved downward, the hydraulic jacks 12A, 1
The 3A piston shafts 32A and 34A are also moved downward. Then, the hydraulic oil in the hydraulic jack 12A is supplied to the jack 16A on the side of the pressing plate 10A, and the pressing plate 10A
Goes outside. The return oil from the jack 16A is supplied to the hydraulic jack 12B, moves the piston shaft 32B by the same amount, and the return oil from the hydraulic jack 12B is returned to the hydraulic jack 12A as the original hydraulic oil supply source.
【００３６】他方、油圧ジャッキ１３Ａ内の作動油は押
圧板１０Ｂ側のジャッキ１６Ｂに供給され、押圧板１０
Ｂが内方に後退する。ジャッキ１６Ｂからの戻り油は油
圧ジャッキ１３Ｂに供給され、ピストン軸３４Ｂを同量
だけ移動させ、油圧ジャッキ１３Ｂからの戻り油が元の
作動油供給源である油圧ジャッキ１３Ａに戻される。On the other hand, the hydraulic oil in the hydraulic jack 13A is supplied to the jack 16B on the side of the pressing plate 10B,
B retreats inward. The return oil from the jack 16B is supplied to the hydraulic jack 13B, moves the piston shaft 34B by the same amount, and the return oil from the hydraulic jack 13B is returned to the hydraulic jack 13A as the original hydraulic oil supply source.
【００３７】このようにして、電力を必要とする作動油
送給ポンプ等の送給源を用いることなく、削孔軸２の前
後進を油圧ジャッキ１２Ａ、１３Ａの作動動力源として
利用し、押圧板１０Ａ、１０Ｂをそれぞれ正反方向に連
動するように進退動作させることができる。なお、逆に
押圧板１０Ａを後退させ、押圧板１０Ｂを前進させたい
場合には削孔軸２を上方に引き上げる。In this way, the forward and backward movement of the drilling shaft 2 is used as an operating power source for the hydraulic jacks 12A and 13A without using a supply source such as a hydraulic oil supply pump that requires electric power. 10A and 10B can be moved forward and backward so as to interlock in the forward and reverse directions, respectively. Conversely, when it is desired to retract the pressing plate 10A and advance the pressing plate 10B, the drilling shaft 2 is pulled up.
【００３８】前記作動機構は、さらに簡略化することが
できる。たとえば、図１３に示されるように、削孔軸２
の片側のみに作動源用の油圧ジャッキ１２Ａ、１２Ｂを
配設することもできる。仮に、削孔軸２が下方向に移動
された場合、作動源用の油圧ジャッキ１２Ａのピストン
軸３２Ａが同じく下方向に移動される。すると、油圧ジ
ャッキ１２Ａ内の作動油は押圧板１０Ａ側のジャッキ１
６Ａに供給され、押圧板１０Ａが外方に進出する。ジャ
ッキ１６Ａからの戻り油は押圧板１０Ｂ側の油圧ジャッ
キ１６Ｂに供給され押圧板１０Ｂが後退する。油圧ジャ
ッキ１６Ｂからの戻り油は油圧ジャッキ１２Ｂに供給さ
れ、ピストン軸３２Ｂが同量だけ移動され、油圧ジャッ
キ１２Ｂからの戻り油が元の作動油供給源である油圧ジ
ャッキ１２Ａに戻される。The operating mechanism can be further simplified. For example, as shown in FIG.
The hydraulic jacks 12A and 12B for the operation source can be provided only on one side of the above. If the drilling shaft 2 is moved downward, the piston shaft 32A of the hydraulic jack 12A for the operation source is also moved downward. Then, the hydraulic oil in the hydraulic jack 12A is released from the jack 1 on the pressing plate 10A side.
6A, and the pressing plate 10A advances outward. The return oil from the jack 16A is supplied to the hydraulic jack 16B on the pressing plate 10B side, and the pressing plate 10B moves backward. The return oil from the hydraulic jack 16B is supplied to the hydraulic jack 12B, the piston shaft 32B is moved by the same amount, and the return oil from the hydraulic jack 12B is returned to the hydraulic jack 12A which is the original hydraulic oil supply source.
【００３９】いずれにしても、本発明においては、削孔
軸列線Ｃを跨いで両側に配設された一対の押圧板１０
Ａ、１０Ｂが、正反方向にそれぞれ進退動作する。たと
えば図６に示すように、目標の掘削中心列線Ｌに対し
て、削孔軸列線Ｃが時計回転方向に傾斜する孔曲りが生
じつつある場合には、図６（Ａ）に示すように、削孔軸
２を下降させ、押圧板１０Ａを前進させると同時に押圧
板１０Ｂを後退させる。また、削孔軸３を上昇させ、押
圧板１１Ａを後退させると同時に押圧板１Ｂを前進させ
る。その結果、削孔軸１〜３全体が反時計回りに回転し
て、削孔軸列線Ｃと目標掘削中心列線Ｌとが一致する。
反対に、削孔軸列線Ｃが反時計回転方向に傾斜する孔曲
りが生じつつある場合には、逆の操作を行って孔曲りを
修正する。また、掘削中心列線Ｌに対して削孔軸列線Ｃ
が平行的にずれた場合、たとえば削孔軸全体が平行移動
的に押圧体１０Ａ、１１Ａ側に移動した場合、前記押圧
体１０Ａ、１１Ａを進出させると同時に、他方側面に設
けられた押圧体１０Ｂ、１１Ｂを後退させることによ
り、孔曲がりを平行移動的に修正する。In any case, according to the present invention, a pair of pressing plates 10 disposed on both sides of the
A and 10B respectively move forward and backward. For example, as shown in FIG. 6, when the drilling axis line C is being inclined clockwise with respect to the target excavation center line L, the hole is bent as shown in FIG. 6A. Then, the drilling shaft 2 is lowered, and the pressing plate 10A is advanced, and at the same time, the pressing plate 10B is retracted. Further, the drilling shaft 3 is raised, and the pressing plate 11A is retracted, and at the same time, the pressing plate 1B is advanced. As a result, the entire drilling shafts 1 to 3 rotate counterclockwise, and the drilling shaft row C and the target drilling center row L coincide with each other.
Conversely, if the hole bending line C is inclined in the counterclockwise rotation direction, the hole bending is corrected by performing the reverse operation. Also, the drilling axis line C
Are displaced in parallel, for example, when the entire drilling shaft is moved in parallel to the pressing bodies 10A and 11A, the pressing bodies 10A and 11A are advanced and simultaneously the pressing body 10B provided on the other side surface. , 11B are retracted to correct the hole bending in a translational manner.
【００４０】ところで、孔曲りは、たとえば図４に示す
ように、削孔軸２，３の両者または一方に傾斜計４０
Ａ，４０Ｂを取り付けて、削孔軸列線Ｃの図６に示す傾
斜角度θ（または量）を検出し、この検出信号を前記ス
ライド手段２２，２３の昇降動作のフィードバック信号
に用いることができる。By the way, as shown in FIG. 4, for example, as shown in FIG.
A, 40B are attached, and the inclination angle θ (or the amount) of the drilling shaft row line C shown in FIG. 6 is detected, and this detection signal can be used as a feedback signal of the lifting / lowering operation of the slide means 22, 23. .
【００４１】前記の例は、３軸の場合であるが、２軸や
４軸以上の場合にも同様な構造をもって孔曲りを修正で
きる。これらの場合、対の孔曲りの修正手段（押圧板）
は、最端部に位置する各削孔軸の近傍にそれぞれ、つま
り二組設けるのが、回転力を大きくする上で効果的であ
る。The above-described example is for the case of three axes, but it is possible to correct the hole bending with a similar structure in the case of two axes or four or more axes. In these cases, a pair of hole bending correction means (pressing plate)
It is effective to provide two sets near each drilling shaft located at the outermost end, that is, to increase the rotational force.
【００４２】一方、前記例は削孔軸を移動させるもので
あるが、図１４に示すように、下部保持手段５を、マス
ト９に固定した昇降シリンダー５０により昇降自在と
し、下部保持手段５をたとえばリーダ８に沿って昇降さ
せることができ、この場合にも同様に作用する（ただ
し、押圧板の進退動作に対して削孔軸の移動方向は逆に
なる）。On the other hand, in the above-described example, the drilling shaft is moved. As shown in FIG. 14, the lower holding means 5 can be moved up and down by an elevating cylinder 50 fixed to the mast 9, and the lower holding means 5 is moved. For example, it can be moved up and down along the leader 8, and in this case also, the same effect is obtained (however, the direction of movement of the drilling axis is reversed with respect to the movement of the pressing plate).
【００４３】さらに、本実施例では、保持手段を上下２
段に設けたが、図５に示すように削孔軸が長い場合に
は、その中間にも設けるのが望ましい。この場合、その
中間の段の保持手段にも、前述の孔曲り修正装置を設け
ることができる。この場合には、中間孔曲り修正装置お
よび下段の孔曲り修正装置の修正移動量は、目的の孔曲
り修正量に応じてコントロールできる。Further, in this embodiment, the holding means is vertically
Although it is provided at the step, when the drilling axis is long as shown in FIG. In this case, the above-described hole bending correcting device can also be provided in the holding means at the intermediate stage. In this case, the correction movement amount of the intermediate hole bending correction device and the lower hole bending correction device can be controlled according to the target hole bending correction amount.
【００４４】[0044]
【発明の効果】以上のとおり、本発明によれば、多軸削
孔機において、掘削中心列線から削孔軸列線がずれた場
合、軸列線を平行移動的に修正することはもちろん、軸
列心を回転中心として軸列面そのものを回転させて修正
することもできる。また、構造的に簡素となるなどの利
点がもたらされる。As described above, according to the present invention, in the multi-axis drilling machine, when the drilling axis line is displaced from the excavation center line, the axis line is naturally corrected in parallel. It is also possible to correct by rotating the shaft row surface itself with the shaft row center as the center of rotation. Further, advantages such as simplification in structure are provided.
【図１】３軸削孔機の概要正面図である。FIG. 1 is a schematic front view of a three-axis drilling machine.
【図２】正規の削孔状態平面図である。FIG. 2 is a plan view of a normal drilling state.
【図３】孔曲り状態例の平面図である。FIG. 3 is a plan view of an example of a bent state of a hole.
【図４】本発明の３軸削孔機の概要正面図である。FIG. 4 is a schematic front view of the three-axis drilling machine of the present invention.
【図５】削孔設備全体の側面図である。FIG. 5 is a side view of the entire drilling equipment.
【図６】本発明に係る孔曲がり修正手段による孔曲がり
修正要領説明図である。FIG. 6 is an explanatory view of a hole bending correction procedure by a hole bending correcting means according to the present invention.
【図７】削孔軸スライド手段例の一部縦断正面図であ
る。FIG. 7 is a partially longitudinal front view of an example of a drilling shaft sliding means.
【図８】本発明の３軸削孔機における保持手段５部分の
平面図である。FIG. 8 is a plan view of the holding means 5 in the three-axis drilling machine of the present invention.
【図９】押圧板前後進機構例図である。FIG. 9 is a view showing an example of a mechanism for moving the pressing plate back and forth.
【図１０】他の押圧板前後進機構例図である。FIG. 10 is an example diagram of another pressing plate forward / backward moving mechanism.
【図１１】本発明の３軸削孔機における保持手段５部分
の縦断面図である。FIG. 11 is a longitudinal sectional view of a holding means 5 in the three-axis drilling machine of the present invention.
【図１２】作動油供給系統図である。FIG. 12 is a hydraulic oil supply system diagram.
【図１３】他の作動機構による作動油供給系統図であ
る。FIG. 13 is a hydraulic oil supply system diagram by another operation mechanism.
【図１４】他のスライド手段例の側面図である。FIG. 14 is a side view of another example of the sliding means.
１，２，３…削孔軸、１Ａ，２Ａ，３Ａ…削孔ビット、
１Ｂ，２Ｂ，３Ｂ…攪拌羽根、４…上部保持手段、５…
下部保持手段、６…回転駆動手段、７…ベースマシン、
８…リーダ、９…マスト、１０Ａ・１０Ｂ・１１Ａ・１
１Ｂ…押圧板、１２〜１５…作動源用油圧ジャッキ、１
６・１６Ａ・１６Ｂ…押圧板用油圧ジャッキ、１７・１
８…連結リンク、２２・２３…スライド手段、３０Ａ・
３０Ｂ…固定カラー、３１Ａ・３１Ｂ…押し棒、３２Ａ
・３２Ｂ・３４Ａ・３４Ｂ…ピストン軸、３３Ａ・３５
Ａ・３３Ｂ・３５Ｂ…バネ部材、３６・３７…リング状
板、Ｘ…掘進機構、Ｙ…保持機構。1, 2, 3 ... drilling axis, 1A, 2A, 3A ... drilling bit,
1B, 2B, 3B ... stirring blades, 4 ... upper holding means, 5 ...
Lower holding means, 6 ... Rotation driving means, 7 ... Base machine,
8 ... leader, 9 ... mast, 10A ・ 10B ・ 11A ・ 1
1B: press plate, 12 to 15: hydraulic jack for operation source, 1
6.16A ・ 16B ... Hydraulic jack for pressure plate, 17.1
8 ... connecting link, 22/23 ... sliding means, 30A
30B: fixed collar, 31A / 31B: push rod, 32A
・ 32B ・ 34A ・ 34B ... Piston shaft, 33A ・ 35
A / 33B / 35B: spring member, 36/37: ring-shaped plate, X: excavation mechanism, Y: holding mechanism.
フロントページの続き (58)調査した分野(Int.Cl.7，ＤＢ名) E02F 5/02 E02D 5/02 - 5/20 Continuation of the front page (58) Field surveyed (Int.Cl. 7 , DB name) E02F 5/02 E02D 5/02-5/20
Claims (3)
いて所定の軸列をなして配設されるとともに、これら各
削孔軸を保持する保持手段を有し、各削孔軸をその軸心
まわりに回転させる回転駆動手段を有する掘進機構が、
対地固定の保持機構に沿って前後進し、前進過程におい
て前記削孔軸により削孔を行う多軸削孔機において、 前記削孔軸の上端部と上部側の保持手段との間に設けら
れ、前記上部側の保持手段を座として前記削孔軸を軸方
向に前後進させるスライド手段と、 下部側の保持手段に固定配置され、前記削孔軸の軸方向
の前後進により作動する作動源用ジャッキと、 前記下部側の保持手段に対して、前記軸列中心より端部
寄り部分であって軸列線を跨ぐ両側面のそれぞれに対と
なって設けられた、実質的に軸列面に対し直交する方向
に進退可能な孔曲がり修正用押圧体と、 これらの孔曲がり修正用押圧体のそれぞれを進退動作さ
せる油圧ジャッキと、前記スライド手段による軸方向の
削孔軸の前後進による作動源用ジャッキの作動により、
前記孔曲がり修正用押圧体の進退動作用の前記油圧ジャ
ッキに作動油が供給され、前記孔曲がり修正用押圧体間
が正反方向に進退動作するように構成されている、 ことを特徴とする孔曲がり修正機能を有する多軸削孔
機。A plurality of drilling axes are arranged in parallel and in a predetermined axial row on a cross section, and holding means for holding each of the drilling axes is provided. Excavation mechanism having a rotation drive means for rotating the shaft around its axis,
A multi-axis drilling machine that moves back and forth along a ground-fixed holding mechanism and performs drilling with the drilling shaft in a forward process, provided between an upper end portion of the drilling shaft and a holding means on an upper side. A sliding means for moving the drilling shaft back and forth in the axial direction with the upper holding means as a seat; and an operating source fixed to the lower holding means and operated by moving the drilling shaft back and forth in the axial direction. A jack, and a pair of substantially parallel shaft surfaces provided on opposite sides of the shaft row center with respect to the holding means on the lower side, the two side surfaces straddling the shaft line. A hole bending correction pressing body capable of moving forward and backward in a direction perpendicular to the hydraulic circuit, a hydraulic jack for moving each of these hole bending correction pressing bodies forward and backward, and an operation by moving the drilling shaft in the axial direction back and forth by the slide means. By the operation of the source jack,
Hydraulic oil is supplied to the hydraulic jack for the forward / backward movement of the hole bending correction pressing body, and the hole bending correction pressing body is configured to perform forward / backward movement in forward and reverse directions. Multi-axis drilling machine with hole bending correction function.
て、軸列の両端側にそれぞれ設けた請求項１記載の孔曲
がり修正機能を有する多軸削孔機。2. A multi-axis drilling machine having a hole bending correcting function according to claim 1, wherein said pair of hole bending correcting pressing bodies are provided as a set at both ends of a shaft row.
ピストン側の一方を上部保持手段に対して固定されたジ
ャッキ本体を有し、他方を削孔軸に対してこれが軸心周
りに回転可能に軸支する軸受を介在させて、削孔軸の外
面に対して前後方向に移動不能に取り付けた構造を有す
る請求項１記載の孔曲り修正機能を有する多軸削孔機。3. The slide means has a jack body having one of a cylinder side and a piston side fixed to an upper holding means, and the other has a shaft rotatable around an axis with respect to a drilling axis. 2. A multi-axis drilling machine having a hole bending correcting function according to claim 1, wherein the multi-axis drilling machine has a structure in which the bearing is interposed so as to be immovable in the front-rear direction with respect to the outer surface of the drilling shaft.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP07162574A JP3102839B2 (en) | 1995-06-28 | 1995-06-28 | Multi-axis drilling machine with hole bending correction function |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP07162574A JP3102839B2 (en) | 1995-06-28 | 1995-06-28 | Multi-axis drilling machine with hole bending correction function |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| JPH0913365A JPH0913365A (en) | 1997-01-14 |
| JP3102839B2 true JP3102839B2 (en) | 2000-10-23 |
Family
ID=15757181
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP07162574A Expired - Fee Related JP3102839B2 (en) | 1995-06-28 | 1995-06-28 | Multi-axis drilling machine with hole bending correction function |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JP3102839B2 (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2013040527A (en) * | 2011-08-19 | 2013-02-28 | Gecoss Corp | Multi-spindle excavator with excavated hole bending correction function |
Families Citing this family (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104912064B (en) * | 2015-06-05 | 2017-03-01 | 西安交通大学青岛研究院 | Built pile one-step molding device |
-
1995
- 1995-06-28 JP JP07162574A patent/JP3102839B2/en not_active Expired - Fee Related
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2013040527A (en) * | 2011-08-19 | 2013-02-28 | Gecoss Corp | Multi-spindle excavator with excavated hole bending correction function |
Also Published As
| Publication number | Publication date |
|---|---|
| JPH0913365A (en) | 1997-01-14 |
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